about summary refs log tree commit diff
path: root/configs/shared/emacs/.emacs.d/elpa/counsel-20180913.921/counsel.el
blob: cc657714cd2f0dc48c49f813910da5c4523eaecb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
;;; counsel.el --- Various completion functions using Ivy -*- lexical-binding: t -*-

;; Copyright (C) 2015-2018  Free Software Foundation, Inc.

;; Author: Oleh Krehel <ohwoeowho@gmail.com>
;; URL: https://github.com/abo-abo/swiper
;; Package-Version: 20180913.921
;; Version: 0.10.0
;; Package-Requires: ((emacs "24.3") (swiper "0.9.0"))
;; Keywords: convenience, matching, tools

;; This file is part of GNU Emacs.

;; This file is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; For a full copy of the GNU General Public License
;; see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; Just call one of the interactive functions in this file to complete
;; the corresponding thing using `ivy'.
;;
;; Currently available:
;; - Symbol completion for Elisp, Common Lisp, Python, Clojure, C, C++.
;; - Describe fuctions for Elisp: function, variable, library, command,
;;   bindings, theme.
;; - Navigation functions: imenu, ace-line, semantic, outline.
;; - Git utilities: git-files, git-grep, git-log, git-stash, git-checkout.
;; - Grep utitilies: grep, ag, pt, recoll, ack, rg.
;; - System utilities: process list, rhythmbox, linux-app.
;; - Many more.

;;; Code:

(require 'swiper)
(require 'compile)
(require 'dired)

;;* Utility
(defvar counsel-more-chars-alist
  '((counsel-grep . 2)
    (t . 3))
  "Map commands to their minimum required input length.
That is the number of characters prompted for before fetching
candidates.  The special key t is used as a fallback.")

(defun counsel-more-chars ()
  "Return two fake candidates prompting for at least N input.
N is obtained from `counsel-more-chars-alist'."
  (let ((diff (- (ivy-alist-setting counsel-more-chars-alist)
                 (length ivy-text))))
    (when (> diff 0)
      (list "" (format "%d chars more" diff)))))

(defun counsel-unquote-regex-parens (str)
  "Unquote regexp parentheses in STR."
  (if (consp str)
      (mapconcat #'car (cl-remove-if-not #'cdr str) ".*")
    (replace-regexp-in-string "\\\\[(){}]\\|[()]"
                              (lambda (s)
                                (or (cdr (assoc s '(("\\(" . "(")
                                                    ("\\)" . ")")
                                                    ("(" . "\\(")
                                                    (")" . "\\)")
                                                    ("\\{" . "{")
                                                    ("\\}" . "}"))))
                                    (error "Unexpected parenthesis: %S" s)))
                              str t t)))

(defun counsel-directory-name (dir)
  "Return the name of directory DIR with a slash."
  (file-name-as-directory
   (file-name-nondirectory
    (directory-file-name dir))))

(defun counsel-string-compose (prefix str)
  "Make PREFIX the display prefix of STR through text properties."
  (let ((str (copy-sequence str)))
    (put-text-property
     0 1 'display
     (concat prefix (substring str 0 1))
     str)
    str))

(defun counsel-require-program (program)
  "Check system for PROGRAM, printing error if unfound."
  (or (and (stringp program)
           (not (string= program ""))
           (executable-find program))
      (user-error "Required program \"%s\" not found in your path" program)))

(defun counsel-prompt-function-default ()
  "Return prompt appended with a semicolon."
  (ivy-add-prompt-count
   (format "%s: " (ivy-state-prompt ivy-last))))

(declare-function eshell-split-path "esh-util")

(defun counsel-prompt-function-dir ()
  "Return prompt appended with the parent directory."
  (require 'esh-util)
  (ivy-add-prompt-count
   (let ((directory (ivy-state-directory ivy-last)))
     (format "%s [%s]: "
             (ivy-state-prompt ivy-last)
             (let ((dir-list (eshell-split-path directory)))
               (if (> (length dir-list) 3)
                   (apply #'concat
                          (append '("...")
                                  (cl-subseq dir-list (- (length dir-list) 3))))
                 directory))))))

;;* Async Utility
(defvar counsel--async-time nil
  "Store the time when a new process was started.
Or the time of the last minibuffer update.")

(defvar counsel--async-start nil
  "Store the time when a new process was started.
Or the time of the last minibuffer update.")

(defvar counsel--async-duration nil
  "Store the time a process takes to gather all its candidates.
The time is measured in seconds.")

(defvar counsel--async-exit-code-plist ()
  "Associate commands with their exit code descriptions.
This plist maps commands to a plist mapping their exit codes to
descriptions.")

(defun counsel-set-async-exit-code (cmd number str)
  "For CMD, associate NUMBER exit code with STR."
  (let ((plist (plist-get counsel--async-exit-code-plist cmd)))
    (setq counsel--async-exit-code-plist
          (plist-put counsel--async-exit-code-plist
                     cmd
                     (plist-put plist number str)))))

(defvar counsel-async-split-string-re "\n"
  "Store the regexp for splitting shell command output.")

(defvar counsel-async-ignore-re nil
  "Regexp matching candidates to ignore in `counsel--async-filter'.")

(defun counsel--async-command (cmd &optional sentinel filter name)
  "Start and return new counsel process by calling CMD.
If the default counsel process or one with NAME already exists,
kill it and its associated buffer before starting a new one.
Give the process the functions SENTINEL and FILTER, which default
to `counsel--async-sentinel' and `counsel--async-filter',
respectively."
  (counsel-delete-process name)
  (let ((name (or name " *counsel*"))
        proc)
    (when (get-buffer name)
      (kill-buffer name))
    (setq proc (start-file-process-shell-command
                name (get-buffer-create name) cmd))
    (setq counsel--async-time (current-time))
    (setq counsel--async-start counsel--async-time)
    (set-process-sentinel proc (or sentinel #'counsel--async-sentinel))
    (set-process-filter proc (or filter #'counsel--async-filter))
    proc))

(defvar counsel-grep-last-line nil)

(defun counsel--async-sentinel (process _msg)
  "Sentinel function for an asynchronous counsel PROCESS."
  (when (eq (process-status process) 'exit)
    (if (zerop (process-exit-status process))
        (progn
          (ivy--set-candidates
           (ivy--sort-maybe
            (with-current-buffer (process-buffer process)
              (split-string (buffer-string) counsel-async-split-string-re t))))
          (setq counsel-grep-last-line nil)
          (when counsel--async-start
            (setq counsel--async-duration
                  (time-to-seconds (time-since counsel--async-start))))
          (let ((re (ivy-re-to-str (funcall ivy--regex-function ivy-text))))
            (if ivy--old-cands
                (ivy--recompute-index ivy-text re ivy--all-candidates)
              (unless (ivy-set-index
                       (ivy--preselect-index
                        (ivy-state-preselect ivy-last)
                        ivy--all-candidates))
                (ivy--recompute-index ivy-text re ivy--all-candidates))))
          (setq ivy--old-cands ivy--all-candidates)
          (if ivy--all-candidates
              (ivy--exhibit)
            (ivy--insert-minibuffer "")))
      (setq ivy--all-candidates
            (let ((status (process-exit-status process))
                  (plist (plist-get counsel--async-exit-code-plist
                                    (ivy-state-caller ivy-last))))
              (list (or (plist-get plist status)
                        (format "error code %d" status)))))
      (setq ivy--old-cands ivy--all-candidates)
      (ivy--exhibit))))

(defcustom counsel-async-filter-update-time 500000
  "The amount of time in microseconds to wait until updating
`counsel--async-filter'."
  :type 'integer
  :group 'ivy)

(defun counsel--async-filter (process str)
  "Receive from PROCESS the output STR.
Update the minibuffer with the amount of lines collected every
`counsel-async-filter-update-time' microseconds since the last update."
  (with-current-buffer (process-buffer process)
    (insert str))
  (when (time-less-p (list 0 0 counsel-async-filter-update-time)
                     (time-since counsel--async-time))
    (let (numlines)
      (with-current-buffer (process-buffer process)
        (setq numlines (count-lines (point-min) (point-max)))
        (ivy--set-candidates
         (let ((lines (split-string (buffer-string)
                                    counsel-async-split-string-re
                                    t)))
           (if (stringp counsel-async-ignore-re)
               (cl-remove-if (lambda (line)
                               (string-match-p counsel-async-ignore-re line))
                             lines)
             lines))))
      (let ((ivy--prompt (format (concat "%d++ " (ivy-state-prompt ivy-last))
                                 numlines)))
        (ivy--insert-minibuffer (ivy--format ivy--all-candidates)))
      (setq counsel--async-time (current-time)))))

(defun counsel-delete-process (&optional name)
  "Delete current counsel process or that with NAME."
  (let ((process (get-process (or name " *counsel*"))))
    (when process
      (delete-process process))))

;;* Completion at point
;;** `counsel-el'
;;;###autoload
(defun counsel-el ()
  "Elisp completion at point."
  (interactive)
  (let* ((bnd (unless (and (looking-at ")")
                           (eq (char-before) ?\())
                (bounds-of-thing-at-point 'symbol)))
         (str (if bnd
                  (buffer-substring-no-properties
                   (car bnd)
                   (cdr bnd))
                ""))
         (pred (and (eq (char-before (car bnd)) ?\()
                    #'fboundp))
         symbol-names)
    (setq ivy-completion-beg (car bnd))
    (setq ivy-completion-end (cdr bnd))
    (if (string= str "")
        (mapatoms
         (lambda (x)
           (when (symbolp x)
             (push (symbol-name x) symbol-names))))
      (setq symbol-names (all-completions str obarray pred)))
    (ivy-read "Symbol name: " symbol-names
              :caller 'counsel-el
              :predicate pred
              :initial-input str
              :action #'ivy-completion-in-region-action)))

(add-to-list 'ivy-height-alist '(counsel-el . 7))

;;** `counsel-cl'
(declare-function slime-symbol-start-pos "ext:slime")
(declare-function slime-symbol-end-pos "ext:slime")
(declare-function slime-contextual-completions "ext:slime-c-p-c")

;;;###autoload
(defun counsel-cl ()
  "Common Lisp completion at point."
  (interactive)
  (setq ivy-completion-beg (slime-symbol-start-pos))
  (setq ivy-completion-end (slime-symbol-end-pos))
  (ivy-read "Symbol name: "
            (car (slime-contextual-completions
                  ivy-completion-beg
                  ivy-completion-end))
            :action #'ivy-completion-in-region-action))

;;** `counsel-jedi'
(declare-function deferred:sync! "ext:deferred")
(declare-function jedi:complete-request "ext:jedi-core")
(declare-function jedi:ac-direct-matches "ext:jedi")

(defun counsel-jedi ()
  "Python completion at point."
  (interactive)
  (let ((bnd (bounds-of-thing-at-point 'symbol)))
    (setq ivy-completion-beg (car bnd))
    (setq ivy-completion-end (cdr bnd)))
  (deferred:sync!
      (jedi:complete-request))
  (ivy-read "Symbol name: " (jedi:ac-direct-matches)
            :action #'counsel--py-action))

(defun counsel--py-action (symbol-name)
  "Insert SYMBOL-NAME, erasing the previous one."
  (when (stringp symbol-name)
    (with-ivy-window
      (when ivy-completion-beg
        (delete-region
         ivy-completion-beg
         ivy-completion-end))
      (setq ivy-completion-beg (point))
      (insert symbol-name)
      (setq ivy-completion-end (point))
      (when (equal (get-text-property 0 'symbol symbol-name) "f")
        (insert "()")
        (setq ivy-completion-end (point))
        (backward-char)))))

;;** `counsel-clj'
(declare-function cider-sync-request:complete "ext:cider-client")
(defun counsel--generic (completion-fn)
  "Complete thing at point with COMPLETION-FN."
  (let* ((bnd (or (bounds-of-thing-at-point 'symbol)
                  (cons (point) (point))))
         (str (buffer-substring-no-properties
               (car bnd) (cdr bnd)))
         (candidates (funcall completion-fn str))
         (res (ivy-read (format "pattern (%s): " str)
                        candidates
                        :caller 'counsel--generic)))
    (when (stringp res)
      (when bnd
        (delete-region (car bnd) (cdr bnd)))
      (insert res))))

(add-to-list 'ivy-height-alist '(counsel--generic . 7))

;;;###autoload
(defun counsel-clj ()
  "Clojure completion at point."
  (interactive)
  (counsel--generic
   (lambda (str)
     (mapcar
      #'cl-caddr
      (cider-sync-request:complete str ":same")))))

;;** `counsel-company'
(defvar company-candidates)
(defvar company-point)
(defvar company-common)
(declare-function company-complete "ext:company")
(declare-function company-mode "ext:company")
(declare-function company-complete-common "ext:company")

;;;###autoload
(defun counsel-company ()
  "Complete using `company-candidates'."
  (interactive)
  (company-mode 1)
  (unless company-candidates
    (company-complete))
  (when company-point
    (when (looking-back company-common (line-beginning-position))
      (setq ivy-completion-beg (match-beginning 0))
      (setq ivy-completion-end (match-end 0)))
    (ivy-read "company cand: " company-candidates
              :action #'ivy-completion-in-region-action)))

;;** `counsel-irony'
(declare-function irony-completion-candidates-async "ext:irony-completion")
(declare-function irony-completion-symbol-bounds "ext:irony-completion")
(declare-function irony-completion-annotation "ext:irony-completion")

;;;###autoload
(defun counsel-irony ()
  "Inline C/C++ completion using Irony."
  (interactive)
  (irony-completion-candidates-async 'counsel-irony-callback))

(defun counsel-irony-callback (candidates)
  "Callback function for Irony to search among CANDIDATES."
  (interactive)
  (let* ((symbol-bounds (irony-completion-symbol-bounds))
         (beg (car symbol-bounds))
         (end (cdr symbol-bounds))
         (prefix (buffer-substring-no-properties beg end)))
    (setq ivy-completion-beg beg
          ivy-completion-end end)
    (ivy-read "code: " (mapcar #'counsel-irony-annotate candidates)
              :predicate (lambda (candidate)
                           (string-prefix-p prefix (car candidate)))
              :caller 'counsel-irony
              :action #'ivy-completion-in-region-action)))

(defun counsel-irony-annotate (x)
  "Make Ivy candidate from Irony candidate X."
  (cons (concat (car x) (irony-completion-annotation x))
        (car x)))

(add-to-list 'ivy-display-functions-alist '(counsel-irony . ivy-display-function-overlay))

;;* Elisp symbols
;;** `counsel-describe-variable'
(defvar counsel-describe-map
  (let ((map (make-sparse-keymap)))
    (define-key map (kbd "C-.") #'counsel-find-symbol)
    (define-key map (kbd "C-,") #'counsel--info-lookup-symbol)
    map))

(ivy-set-actions
 'counsel-describe-variable
 '(("I" counsel-info-lookup-symbol "info")
   ("d" counsel--find-symbol "definition")))

(defvar counsel-describe-symbol-history ()
  "History list for variable and function names.
Used by commands `counsel-describe-variable' and
`counsel-describe-function'.")

(defun counsel-find-symbol ()
  "Jump to the definition of the current symbol."
  (interactive)
  (ivy-exit-with-action #'counsel--find-symbol))

(defun counsel--info-lookup-symbol ()
  "Lookup the current symbol in the info docs."
  (interactive)
  (ivy-exit-with-action #'counsel-info-lookup-symbol))

(defvar find-tag-marker-ring)
(declare-function xref-push-marker-stack "xref")

(defalias 'counsel--push-xref-marker
  (if (require 'xref nil t)
      #'xref-push-marker-stack
    (require 'etags)
    (lambda (&optional m)
      (ring-insert (with-no-warnings find-tag-marker-ring) (or m (point-marker)))))
  "Compatibility shim for `xref-push-marker-stack'.")

(defun counsel--find-symbol (x)
  "Find symbol definition that corresponds to string X."
  (with-ivy-window
    (counsel--push-xref-marker)
    (let ((full-name (get-text-property 0 'full-name x)))
      (if full-name
          (find-library full-name)
        (let ((sym (read x)))
          (cond ((and (eq (ivy-state-caller ivy-last)
                          'counsel-describe-variable)
                      (boundp sym))
                 (find-variable sym))
                ((fboundp sym)
                 (find-function sym))
                ((boundp sym)
                 (find-variable sym))
                ((or (featurep sym)
                     (locate-library
                      (prin1-to-string sym)))
                 (find-library
                  (prin1-to-string sym)))
                (t
                 (error "Couldn't find definition of %s"
                        sym))))))))

(define-obsolete-function-alias 'counsel-symbol-at-point
    'ivy-thing-at-point "0.7.0")

(defun counsel--variable-p (symbol)
  "Return non-nil if SYMBOL is a bound or documented variable."
  (or (and (boundp symbol)
           (not (keywordp symbol)))
      (get symbol 'variable-documentation)))

(defcustom counsel-describe-variable-function #'describe-variable
  "Function to call to describe a variable passed as parameter."
  :type 'function
  :group 'ivy)

(defun counsel-describe-variable-transformer (var)
  "Propertize VAR if it's a custom variable."
  (if (custom-variable-p (intern var))
      (ivy-append-face var 'ivy-highlight-face)
    var))

(ivy-set-display-transformer
 'counsel-describe-variable 'counsel-describe-variable-transformer)

;;;###autoload
(defun counsel-describe-variable ()
  "Forward to `describe-variable'.

Variables declared using `defcustom' are highlighted according to
`ivy-highlight-face'."
  (interactive)
  (let ((enable-recursive-minibuffers t))
    (ivy-read "Describe variable: " obarray
              :predicate #'counsel--variable-p
              :require-match t
              :history 'counsel-describe-symbol-history
              :keymap counsel-describe-map
              :preselect (ivy-thing-at-point)
              :sort t
              :action (lambda (x)
                        (funcall counsel-describe-variable-function (intern x)))
              :caller 'counsel-describe-variable)))

;;** `counsel-describe-function'
(ivy-set-actions
 'counsel-describe-function
 '(("I" counsel-info-lookup-symbol "info")
   ("d" counsel--find-symbol "definition")))

(defcustom counsel-describe-function-function #'describe-function
  "Function to call to describe a function passed as parameter."
  :type 'function
  :group 'ivy)

(defun counsel-describe-function-transformer (function-name)
  "Propertize FUNCTION-NAME if it's an interactive function."
  (if (commandp (intern function-name))
      (ivy-append-face function-name 'ivy-highlight-face)
    function-name))

(ivy-set-display-transformer
 'counsel-describe-function 'counsel-describe-function-transformer)

(defun ivy-function-called-at-point ()
  (let ((f (function-called-at-point)))
    (and f (symbol-name f))))

(defcustom counsel-describe-function-preselect #'ivy-thing-at-point
  "Determine what `counsel-describe-function' should preselect."
  :group 'ivy
  :type '(radio
          (function-item ivy-thing-at-point)
          (function-item ivy-function-called-at-point)))

;;;###autoload
(defun counsel-describe-function ()
  "Forward to `describe-function'.

Interactive functions (i.e., commands) are highlighted according
to `ivy-highlight-face'."
  (interactive)
  (let ((enable-recursive-minibuffers t))
    (ivy-read "Describe function: " obarray
              :predicate (lambda (sym)
                           (or (fboundp sym)
                               (get sym 'function-documentation)))
              :require-match t
              :history 'counsel-describe-symbol-history
              :keymap counsel-describe-map
              :preselect (funcall counsel-describe-function-preselect)
              :sort t
              :action (lambda (x)
                        (funcall counsel-describe-function-function (intern x)))
              :caller 'counsel-describe-function)))

;;** `counsel-set-variable'
(defvar counsel-set-variable-history nil
  "Store history for `counsel-set-variable'.")

(defun counsel-read-setq-expression (sym)
  "Read and eval a setq expression for SYM."
  (setq this-command 'eval-expression)
  (let* ((minibuffer-completing-symbol t)
         (sym-value (symbol-value sym))
         (expr (minibuffer-with-setup-hook
                   (lambda ()
                     (add-function :before-until (local 'eldoc-documentation-function)
                                   #'elisp-eldoc-documentation-function)
                     (add-hook 'completion-at-point-functions #'elisp-completion-at-point nil t)
                     (run-hooks 'eval-expression-minibuffer-setup-hook)
                     (goto-char (minibuffer-prompt-end))
                     (forward-char 6)
                     (insert (format "%S " sym)))
                 (read-from-minibuffer "Eval: "
                                       (format
                                        (if (and sym-value (consp sym-value))
                                            "(setq '%S)"
                                          "(setq %S)")
                                        sym-value)
                                       read-expression-map t
                                       'read-expression-history))))
    (eval-expression expr)))

(defun counsel--setq-doconst (x)
  "Return a cons of description and value for X.
X is an item of a radio- or choice-type defcustom."
  (let (y)
    (when (and (listp x)
               (consp (setq y (last x))))
      (unless (equal y '(function))
        (setq x (car y))
        (cons (prin1-to-string x)
              (if (symbolp x)
                  (list 'quote x)
                x))))))

(declare-function lv-message "ext:lv")
(declare-function lv-delete-window "ext:lv")
(declare-function custom-variable-documentation "cus-edit")

;;;###autoload
(defun counsel-set-variable (sym)
  "Set a variable, with completion.

When the selected variable is a `defcustom' with the type boolean
or radio, offer completion of all possible values.

Otherwise, offer a variant of `eval-expression', with the initial
input corresponding to the chosen variable.

With a prefix arg, restrict list to variables defined using
`defcustom'."
  (interactive (list (intern
                      (ivy-read "Set variable: " obarray
                                :predicate (if current-prefix-arg
                                               #'custom-variable-p
                                             #'counsel--variable-p)
                                :history 'counsel-set-variable-history
                                :preselect (ivy-thing-at-point)))))
  (let ((doc (and (require 'cus-edit)
                  (require 'lv nil t)
                  (not (string= "nil" (custom-variable-documentation sym)))
                  (propertize (custom-variable-documentation sym)
                              'face 'font-lock-comment-face)))
        sym-type
        cands)
    (unwind-protect
         (progn
           (when doc
             (lv-message doc))
           (if (and (boundp sym)
                    (setq sym-type (get sym 'custom-type))
                    (cond
                      ((and (consp sym-type)
                            (memq (car sym-type) '(choice radio)))
                       (setq cands (delq nil (mapcar #'counsel--setq-doconst (cdr sym-type)))))
                      ((eq sym-type 'boolean)
                       (setq cands '(("nil" . nil) ("t" . t))))
                      (t nil)))
               (let* ((sym-val (symbol-value sym))
                      ;; Escape '%' chars if present
                      (sym-val-str (replace-regexp-in-string "%" "%%" (format "%s" sym-val)))
                      (res (ivy-read (format "Set (%S <%s>): " sym sym-val-str)
                                     cands
                                     :preselect (prin1-to-string sym-val))))
                 (when res
                   (setq res
                         (if (assoc res cands)
                             (cdr (assoc res cands))
                           (read res)))
                   (set sym (if (and (listp res) (eq (car res) 'quote))
                                (cadr res)
                              res))))
             (unless (boundp sym)
               (set sym nil))
             (counsel-read-setq-expression sym)))
      (when doc
        (lv-delete-window)))))

;;** `counsel-apropos'
;;;###autoload
(defun counsel-apropos ()
  "Show all matching symbols.
See `apropos' for further information on what is considered
a symbol and how to search for them."
  (interactive)
  (ivy-read "Search for symbol (word list or regexp): " obarray
            :predicate (lambda (sym)
                         (or (fboundp sym)
                             (boundp sym)
                             (facep sym)
                             (symbol-plist sym)))
            :history 'counsel-apropos-history
            :preselect (ivy-thing-at-point)
            :sort t
            :action (lambda (pattern)
                      (when (string= pattern "")
                        (user-error "Please specify a pattern"))
                      ;; If the user selected a candidate form the list, we use
                      ;; a pattern which matches only the selected symbol.
                      (if (memq this-command '(ivy-immediate-done ivy-alt-done))
                          ;; Regexp pattern are passed verbatim, other input is
                          ;; split into words.
                          (if (string= (regexp-quote pattern) pattern)
                              (apropos (split-string pattern "[ \t]+" t))
                            (apropos pattern))
                        (apropos (concat "\\`" pattern "\\'"))))
            :caller 'counsel-apropos))

;;** `counsel-info-lookup-symbol'
(defvar info-lookup-mode)
(declare-function info-lookup-guess-default "info-look")
(declare-function info-lookup->completions "info-look")
(declare-function info-lookup->mode-value "info-look")
(declare-function info-lookup-select-mode "info-look")
(declare-function info-lookup-change-mode "info-look")
(declare-function info-lookup "info-look")

;;;###autoload
(defun counsel-info-lookup-symbol (symbol &optional mode)
  "Forward to `info-lookup-symbol' with ivy completion."
  (interactive
   (progn
     (require 'info-look)
     ;; Courtesy of `info-lookup-interactive-arguments'
     (let* ((topic 'symbol)
            (mode (cond (current-prefix-arg
                         (info-lookup-change-mode topic))
                        ((info-lookup->mode-value
                          topic (info-lookup-select-mode))
                         info-lookup-mode)
                        ((info-lookup-change-mode topic))))
            (enable-recursive-minibuffers t))
       (list (ivy-read "Describe symbol: " (info-lookup->completions topic mode)
                       :history 'info-lookup-history
                       :preselect (info-lookup-guess-default topic mode)
                       :sort t
                       :caller 'counsel-info-lookup-symbol)
             mode))))
  (info-lookup-symbol symbol mode))

;;** `counsel-M-x'
(defface counsel-key-binding
  '((t :inherit font-lock-keyword-face))
  "Face used by `counsel-M-x' for key bindings."
  :group 'ivy-faces)

(defun counsel-M-x-transformer (cmd)
  "Return CMD annotated with its active key binding, if any."
  (let ((key (where-is-internal (intern cmd) nil t)))
    (if (not key)
        cmd
      ;; Prefer `<f2>' over `C-x 6' where applicable
      (let ((i (cl-search [?\C-x ?6] key)))
        (when i
          (let ((dup (vconcat (substring key 0 i) [f2] (substring key (+ i 2))))
                (map (current-global-map)))
            (when (equal (lookup-key map key)
                         (lookup-key map dup))
              (setq key dup)))))
      (setq key (key-description key))
      (put-text-property 0 (length key) 'face 'counsel-key-binding key)
      (format "%s (%s)" cmd key))))

(defvar amx-initialized)
(defvar amx-cache)
(declare-function amx-initialize "ext:amx")
(declare-function amx-detect-new-commands "ext:amx")
(declare-function amx-update "ext:amx")
(declare-function amx-rank "ext:amx")
(defvar smex-initialized-p)
(defvar smex-ido-cache)
(declare-function smex-initialize "ext:smex")
(declare-function smex-detect-new-commands "ext:smex")
(declare-function smex-update "ext:smex")
(declare-function smex-rank "ext:smex")

(defun counsel--M-x-externs ()
  "Return `counsel-M-x' candidates from external packages.
The return value is a list of strings.  The currently supported
packages are, in order of precedence, `amx' and `smex'."
  (cond ((require 'amx nil t)
         (unless amx-initialized
           (amx-initialize))
         (when (amx-detect-new-commands)
           (amx-update))
         (mapcar (lambda (entry)
                   (symbol-name (car entry)))
                 amx-cache))
        ((require 'smex nil t)
         (unless smex-initialized-p
           (smex-initialize))
         (when (smex-detect-new-commands)
           (smex-update))
         smex-ido-cache)))

(defun counsel--M-x-prompt ()
  "String for `M-x' plus the string representation of `current-prefix-arg'."
  (if (not current-prefix-arg)
      "M-x "
    (concat
     (if (eq current-prefix-arg '-)
         "- "
       (if (integerp current-prefix-arg)
           (format "%d " current-prefix-arg)
         (if (= (car current-prefix-arg) 4)
             "C-u "
           (format "%d " (car current-prefix-arg)))))
     "M-x ")))

(defvar counsel-M-x-history nil
  "History for `counsel-M-x'.")

;;;###autoload
(defun counsel-M-x (&optional initial-input)
  "Ivy version of `execute-extended-command'.
Optional INITIAL-INPUT is the initial input in the minibuffer.
This function integrates with either the `amx' or `smex' package
when available, in that order of precedence."
  (interactive)
  ;; When `counsel-M-x' returns, `last-command' would be set to
  ;; `counsel-M-x' because :action hasn't been invoked yet.
  ;; Instead, preserve the old value of `this-command'.
  (setq this-command last-command)
  (setq real-this-command real-last-command)
  (let ((externs (counsel--M-x-externs)))
    (ivy-read (counsel--M-x-prompt) (or externs obarray)
              :predicate (and (not externs) #'commandp)
              :require-match t
              :history 'counsel-M-x-history
              :action (lambda (cmd)
                        (setq cmd (intern cmd))
                        (cond ((bound-and-true-p amx-initialized)
                               (amx-rank cmd))
                              ((bound-and-true-p smex-initialized-p)
                               (smex-rank cmd)))
                        (setq prefix-arg current-prefix-arg)
                        (setq this-command cmd)
                        (setq real-this-command cmd)
                        (command-execute cmd 'record))
              :sort (not externs)
              :keymap counsel-describe-map
              :initial-input initial-input
              :caller 'counsel-M-x)))

(ivy-set-actions
 'counsel-M-x
 `(("d" counsel--find-symbol "definition")
   ("h" ,(lambda (x) (describe-function (intern x))) "help")))

(ivy-set-display-transformer
 'counsel-M-x
 'counsel-M-x-transformer)

;;** `counsel-command-history'
(defun counsel-command-history-action-eval (cmd)
  "Eval the command CMD."
  (eval (read cmd)))

(defun counsel-command-history-action-edit-and-eval (cmd)
  "Edit and eval the command CMD."
  (edit-and-eval-command "Eval: " (read cmd)))

(ivy-set-actions
 'counsel-command-history
 '(("r" counsel-command-history-action-eval           "eval command")
   ("e" counsel-command-history-action-edit-and-eval  "edit and eval command")))

(defun counsel-command-history ()
  "Show the history of commands."
  (interactive)
  (ivy-read "%d Command: " (mapcar #'prin1-to-string command-history)
            :require-match t
            :action #'counsel-command-history-action-eval
            :caller 'counsel-command-history))

;;** `counsel-load-library'
(defun counsel-library-candidates ()
  "Return a list of completion candidates for `counsel-load-library'."
  (let ((suffix (concat (regexp-opt '(".el" ".el.gz") t) "\\'"))
        (cands (make-hash-table :test #'equal))
        short-name
        old-val
        dir-parent
        res)
    (dolist (dir load-path)
      (setq dir (or dir default-directory)) ;; interpret nil in load-path as default-directory
      (when (file-directory-p dir)
        (dolist (file (file-name-all-completions "" dir))
          (when (string-match suffix file)
            (unless (string-match "pkg.elc?$" file)
              (setq short-name (substring file 0 (match-beginning 0)))
              (if (setq old-val (gethash short-name cands))
                  (progn
                    ;; assume going up directory once will resolve name clash
                    (setq dir-parent (counsel-directory-name (cdr old-val)))
                    (puthash short-name
                             (cons
                              (counsel-string-compose dir-parent (car old-val))
                              (cdr old-val))
                             cands)
                    (setq dir-parent (counsel-directory-name dir))
                    (puthash (concat dir-parent short-name)
                             (cons
                              (propertize
                               (counsel-string-compose
                                dir-parent short-name)
                               'full-name (expand-file-name file dir))
                              dir)
                             cands))
                (puthash short-name
                         (cons (propertize
                                short-name
                                'full-name (expand-file-name file dir))
                               dir)
                         cands)))))))
    (maphash (lambda (_k v) (push (car v) res)) cands)
    (nreverse res)))

;;;###autoload
(defun counsel-load-library ()
  "Load a selected the Emacs Lisp library.
The libraries are offered from `load-path'."
  (interactive)
  (let ((cands (counsel-library-candidates)))
    (ivy-read "Load library: " cands
              :action (lambda (x)
                        (load-library
                         (get-text-property 0 'full-name x)))
              :keymap counsel-describe-map)))

(ivy-set-actions
 'counsel-load-library
 '(("d" counsel--find-symbol "definition")))

;;** `counsel-find-library'
(declare-function find-library-name "find-func")
(defun counsel-find-library-other-window (library)
  (let ((buf (find-file-noselect (find-library-name library))))
    (pop-to-buffer buf 'other-window)))

(defun counsel-find-library-other-frame (library)
  (let ((buf (find-file-noselect (find-library-name library))))
    (condition-case nil
        (switch-to-buffer-other-frame buf)
      (error (pop-to-buffer buf)))))

(ivy-set-actions
 'counsel-find-library
 '(("j" counsel-find-library-other-window "other window")
   ("f" counsel-find-library-other-frame "other frame")))

;;;###autoload
(defun counsel-find-library ()
  "Visit a selected the Emacs Lisp library.
The libraries are offered from `load-path'."
  (interactive)
  (let ((cands (counsel-library-candidates)))
    (ivy-read "Find library: " cands
              :action #'counsel--find-symbol
              :keymap counsel-describe-map
              :caller 'counsel-find-library)))

;;** `counsel-load-theme'
(declare-function powerline-reset "ext:powerline")

(defun counsel-load-theme-action (x)
  "Disable current themes and load theme X."
  (condition-case nil
      (progn
        (mapc #'disable-theme custom-enabled-themes)
        (load-theme (intern x) t)
        (when (fboundp 'powerline-reset)
          (powerline-reset)))
    (error "Problem loading theme %s" x)))

;;;###autoload
(defun counsel-load-theme ()
  "Forward to `load-theme'.
Usable with `ivy-resume', `ivy-next-line-and-call' and
`ivy-previous-line-and-call'."
  (interactive)
  (ivy-read "Load custom theme: "
            (mapcar 'symbol-name
                    (custom-available-themes))
            :action #'counsel-load-theme-action
            :caller 'counsel-load-theme))

;;** `counsel-descbinds'
(ivy-set-actions
 'counsel-descbinds
 '(("d" counsel-descbinds-action-find "definition")
   ("I" counsel-descbinds-action-info "info")))

(defvar counsel-descbinds-history nil
  "History for `counsel-descbinds'.")

(defun counsel--descbinds-cands (&optional prefix buffer)
  "Get key bindings starting with PREFIX in BUFFER.
See `describe-buffer-bindings' for further information."
  (let ((buffer (or buffer (current-buffer)))
        (re-exclude (regexp-opt
                     '("<vertical-line>" "<bottom-divider>" "<right-divider>"
                       "<mode-line>" "<C-down-mouse-2>" "<left-fringe>"
                       "<right-fringe>" "<header-line>"
                       "<vertical-scroll-bar>" "<horizontal-scroll-bar>")))
        res)
    (with-temp-buffer
      (let ((indent-tabs-mode t))
        (describe-buffer-bindings buffer prefix))
      (goto-char (point-min))
      ;; Skip the "Key translations" section
      (re-search-forward "")
      (forward-char 1)
      (while (not (eobp))
        (when (looking-at "^\\([^\t\n]+\\)[\t ]*\\(.*\\)$")
          (let ((key (match-string 1))
                (fun (match-string 2))
                cmd)
            (unless (or (member fun '("??" "self-insert-command"))
                        (string-match re-exclude key)
                        (not (or (commandp (setq cmd (intern-soft fun)))
                                 (member fun '("Prefix Command")))))
              (push
               (cons (format
                      "%-15s %s"
                      (propertize key 'face 'font-lock-builtin-face)
                      fun)
                     (cons key cmd))
               res))))
        (forward-line 1)))
    (nreverse res)))

(defun counsel-descbinds-action-describe (x)
  "Describe function of candidate X.
See `describe-function' for further information."
  (let ((cmd (cddr x)))
    (describe-function cmd)))

(defun counsel-descbinds-action-find (x)
  "Find symbol definition of candidate X.
See `counsel--find-symbol' for further information."
  (let ((cmd (cddr x)))
    (counsel--find-symbol (symbol-name cmd))))

(defun counsel-descbinds-action-info (x)
  "Display symbol definition of candidate X, as found in the relevant manual.
See `info-lookup-symbol' for further information."
  (let ((cmd (cddr x)))
    (counsel-info-lookup-symbol (symbol-name cmd))))

;;;###autoload
(defun counsel-descbinds (&optional prefix buffer)
  "Show a list of all defined keys and their definitions.
If non-nil, show only bindings that start with PREFIX.
BUFFER defaults to the current one."
  (interactive)
  (ivy-read "Bindings: " (counsel--descbinds-cands prefix buffer)
            :action #'counsel-descbinds-action-describe
            :history 'counsel-descbinds-history
            :caller 'counsel-descbinds))

;;** `counsel-describe-face'
(defcustom counsel-describe-face-function #'describe-face
  "Function to call to describe a face or face name argument."
  :type 'function
  :group 'ivy)

(defun counsel--face-at-point ()
  "Return name of face around point.
Try detecting a face name in the text around point before falling
back to the face of the character after point, and finally the
`default' face."
  (symbol-name (or (face-at-point t) 'default)))

(defun counsel-describe-face ()
  "Completion for `describe-face'."
  (interactive)
  (ivy-read "Face: " (face-list)
            :require-match t
            :history 'face-name-history
            :preselect (counsel--face-at-point)
            :sort t
            :action counsel-describe-face-function
            :caller 'counsel-describe-face))

(defun counsel-customize-face (name)
  "Customize face with NAME."
  (customize-face (intern name)))

(defun counsel-customize-face-other-window (name)
  "Customize face with NAME in another window."
  (customize-face-other-window (intern name)))

(ivy-set-actions
 'counsel-describe-face
 '(("c" counsel-customize-face "customize")
   ("C" counsel-customize-face-other-window "customize other window")))

;;** `counsel-faces'
(defun counsel--faces-format-function (format)
  "Return an `ivy-format-function' for `counsel-faces'.
Each candidate is formatted based on the given FORMAT string."
  (let ((formatter (lambda (name)
                     (format format name (propertize list-faces-sample-text
                                                     'face (intern name))))))
    (lambda (names)
      (ivy--format-function-generic
       (lambda (name)
         (funcall formatter (ivy--add-face name 'ivy-current-match)))
       formatter names "\n"))))

;;;###autoload
(defun counsel-faces ()
  "Complete faces with preview.
Actions are provided by default for describing or customizing the
selected face."
  (interactive)
  (let* ((names (mapcar #'symbol-name (face-list)))
         (ivy-format-function
          (counsel--faces-format-function
           (format "%%-%ds %%s"
                   (apply #'max 0 (mapcar #'string-width names))))))
    (ivy-read "Face: " names
              :require-match t
              :history 'face-name-history
              :preselect (counsel--face-at-point)
              :sort t
              :action counsel-describe-face-function
              :caller 'counsel-faces)))

(ivy-set-actions
 'counsel-faces
 '(("c" counsel-customize-face "customize")
   ("C" counsel-customize-face-other-window "customize other window")))

;;* Git
;;** `counsel-git'
(defvar counsel-git-cmd "git ls-files --full-name --"
  "Command for `counsel-git'.")

(ivy-set-actions
 'counsel-git
 '(("j" find-file-other-window "other window")
   ("x" counsel-find-file-extern "open externally")))

(defun counsel-locate-git-root ()
  "Locate the root of the git repository containing the current buffer."
  (or (locate-dominating-file default-directory ".git")
      (error "Not in a git repository")))

;;;###autoload
(defun counsel-git (&optional initial-input)
  "Find file in the current Git repository.
INITIAL-INPUT can be given as the initial minibuffer input."
  (interactive)
  (counsel-require-program (car (split-string counsel-git-cmd)))
  (let* ((default-directory (expand-file-name (counsel-locate-git-root)))
         (cands (split-string
                 (shell-command-to-string counsel-git-cmd)
                 "\n"
                 t)))
    (ivy-read "Find file" cands
              :initial-input initial-input
              :action #'counsel-git-action
              :caller 'counsel-git)))

(ivy-set-prompt 'counsel-git #'counsel-prompt-function-default)

(defun counsel-git-action (x)
  "Find file X in current Git repository."
  (with-ivy-window
    (let ((default-directory (ivy-state-directory ivy-last)))
      (find-file x))))

(defun counsel-git-occur ()
  "Occur function for `counsel-git' using `counsel-cmd-to-dired'."
  (cd (ivy-state-directory ivy-last))
  (counsel-cmd-to-dired
   (counsel--expand-ls
    (format "%s | grep -i -E '%s' | xargs ls"
            counsel-git-cmd
            (counsel-unquote-regex-parens ivy--old-re)))))

(defvar counsel-dired-listing-switches "-alh"
  "Switches passed to `ls' for `counsel-cmd-to-dired'.")

(defun counsel-cmd-to-dired (full-cmd &optional filter)
  "Adapted from `find-dired'."
  (let ((inhibit-read-only t))
    (erase-buffer)
    (dired-mode default-directory counsel-dired-listing-switches)
    (insert "  " default-directory ":\n")
    (let ((point (point)))
      (insert "  " full-cmd "\n")
      (dired-insert-set-properties point (point)))
    (setq-local dired-sort-inhibit t)
    (setq-local revert-buffer-function
                (lambda (_1 _2) (counsel-cmd-to-dired full-cmd)))
    (setq-local dired-subdir-alist
                (list (cons default-directory (point-min-marker))))
    (let ((proc (start-process-shell-command
                 "counsel-cmd" (current-buffer) full-cmd)))
      (set-process-filter proc filter)
      (set-process-sentinel
       proc
       (lambda (process _msg)
         (when (and (eq (process-status process) 'exit)
                    (zerop (process-exit-status process)))
           (goto-char (point-min))
           (forward-line 2)
           (dired-move-to-filename)))))))

(ivy-set-occur 'counsel-git 'counsel-git-occur)

;;** `counsel-git-grep'
(defvar counsel-git-grep-map
  (let ((map (make-sparse-keymap)))
    (define-key map (kbd "C-l") 'ivy-call-and-recenter)
    (define-key map (kbd "M-q") 'counsel-git-grep-query-replace)
    (define-key map (kbd "C-c C-m") 'counsel-git-grep-switch-cmd)
    map))

(ivy-set-occur 'counsel-git-grep 'counsel-git-grep-occur)
(ivy-set-display-transformer 'counsel-git-grep 'counsel-git-grep-transformer)

(defvar counsel-git-grep-cmd-default "git --no-pager grep --full-name -n --no-color -i -I -e \"%s\""
  "Initial command for `counsel-git-grep'.")

(defvar counsel-git-grep-cmd nil
  "Store the command for `counsel-git-grep'.")

(defvar counsel--git-grep-count nil
  "Store the line count in current repository.")

(defvar counsel--git-grep-count-threshold 20000
  "The maximum threshold beyond which repositories are considered large.")

(defvar counsel-git-grep-history nil
  "History for `counsel-git-grep'.")

(defvar counsel-git-grep-cmd-history
  (list counsel-git-grep-cmd-default)
  "History for `counsel-git-grep' shell commands.")

(defcustom counsel-grep-post-action-hook nil
  "Hook that runs after the point moves to the next candidate.
Typical value: '(recenter)."
  :type 'hook
  :group 'ivy)

(defun counsel-git-grep-function (str &optional _pred &rest _unused)
  "Grep in the current git repository for STRING."
  (or
   (and (> counsel--git-grep-count counsel--git-grep-count-threshold)
        (counsel-more-chars))
   (let* ((default-directory (ivy-state-directory ivy-last))
          (cmd (format counsel-git-grep-cmd
                       (setq ivy--old-re (ivy--regex str t)))))
     (if (<= counsel--git-grep-count counsel--git-grep-count-threshold)
         (split-string (shell-command-to-string cmd) "\n" t)
       (counsel--gg-candidates (ivy--regex str))
       nil))))

(defun counsel-git-grep-action (x)
  "Go to occurrence X in current Git repository."
  (when (string-match "\\`\\(.*?\\):\\([0-9]+\\):\\(.*\\)\\'" x)
    (let ((file-name (match-string-no-properties 1 x))
          (line-number (match-string-no-properties 2 x)))
      (find-file (expand-file-name
                  file-name
                  (ivy-state-directory ivy-last)))
      (goto-char (point-min))
      (forward-line (1- (string-to-number line-number)))
      (re-search-forward (ivy--regex ivy-text t) (line-end-position) t)
      (swiper--ensure-visible)
      (run-hooks 'counsel-grep-post-action-hook)
      (unless (eq ivy-exit 'done)
        (swiper--cleanup)
        (swiper--add-overlays (ivy--regex ivy-text))))))

(defun counsel-git-grep-matcher (regexp candidates)
  "Return REGEXP matching CANDIDATES for `counsel-git-grep'."
  (or (and (equal regexp ivy--old-re)
           ivy--old-cands)
      (prog1
          (setq ivy--old-cands
                (cl-remove-if-not
                 (lambda (x)
                   (ignore-errors
                     (when (string-match "^[^:]+:[^:]+:" x)
                       (setq x (substring x (match-end 0)))
                       (if (stringp regexp)
                           (string-match regexp x)
                         (let ((res t))
                           (dolist (re regexp)
                             (setq res
                                   (and res
                                        (ignore-errors
                                          (if (cdr re)
                                              (string-match (car re) x)
                                            (not (string-match (car re) x)))))))
                           res)))))
                 candidates))
        (setq ivy--old-re regexp))))

(defun counsel-git-grep-transformer (str)
  "Higlight file and line number in STR."
  (when (string-match "\\`\\([^:]+\\):\\([^:]+\\):" str)
    (ivy-add-face-text-property (match-beginning 1) (match-end 1)
                                'compilation-info
                                str)
    (ivy-add-face-text-property (match-beginning 2) (match-end 2)
                                'compilation-line-number
                                str))
  str)

(defvar counsel-git-grep-projects-alist nil
  "An alist of project directory to \"git-grep\" command.
Allows to automatically use a custom \"git-grep\" command for all
files in a project.")

(defun counsel--git-grep-cmd-and-proj (cmd)
  (let ((dd (expand-file-name default-directory))
        proj)
    (cond
      ((stringp cmd))
      (cmd
       (if (setq proj
                 (cl-find-if
                  (lambda (x)
                    (string-match (car x) dd))
                  counsel-git-grep-projects-alist))
           (setq cmd (cdr proj))
         (setq cmd
               (ivy-read "cmd: " counsel-git-grep-cmd-history
                         :history 'counsel-git-grep-cmd-history
                         :re-builder #'ivy--regex))
         (setq counsel-git-grep-cmd-history
               (delete-dups counsel-git-grep-cmd-history))))
      (t
       (setq cmd counsel-git-grep-cmd-default)))
    (cons proj cmd)))

(defun counsel--git-grep-count-func-default ()
  "Default defun to calculate `counsel--git-grep-count'."
  (if (eq system-type 'windows-nt)
      0
    (read (shell-command-to-string "du -s \"$(git rev-parse --git-dir)\" 2>/dev/null"))))

(defvar counsel--git-grep-count-func #'counsel--git-grep-count-func-default
  "Defun to calculate `counsel--git-grep-count' for `counsel-git-grep'.")

;;;###autoload
(defun counsel-git-grep (&optional cmd initial-input)
  "Grep for a string in the current git repository.
When CMD is a string, use it as a \"git grep\" command.
When CMD is non-nil, prompt for a specific \"git grep\" command.
INITIAL-INPUT can be given as the initial minibuffer input."
  (interactive "P")
  (let ((proj-and-cmd (counsel--git-grep-cmd-and-proj cmd))
        proj)
    (setq proj (car proj-and-cmd))
    (setq counsel-git-grep-cmd (cdr proj-and-cmd))
    (counsel-require-program (car (split-string counsel-git-grep-cmd)))
    (let ((collection-function
           (if proj
               #'counsel-git-grep-proj-function
             #'counsel-git-grep-function))
          (unwind-function
           (if proj
               (lambda ()
                 (counsel-delete-process)
                 (swiper--cleanup))
             (lambda ()
               (swiper--cleanup))))
          (default-directory (if proj
                                 (car proj)
                               (counsel-locate-git-root))))
      (setq counsel--git-grep-count (funcall counsel--git-grep-count-func))
      (ivy-read "git grep" collection-function
                :initial-input initial-input
                :matcher #'counsel-git-grep-matcher
                :dynamic-collection (or proj
                                        (>
                                         counsel--git-grep-count
                                         counsel--git-grep-count-threshold))
                :keymap counsel-git-grep-map
                :action #'counsel-git-grep-action
                :unwind unwind-function
                :history 'counsel-git-grep-history
                :caller 'counsel-git-grep))))
(ivy-set-prompt 'counsel-git-grep #'counsel-prompt-function-default)
(cl-pushnew 'counsel-git-grep ivy-highlight-grep-commands)

(defun counsel-git-grep-proj-function (str)
  "Grep for STR in the current git repository."
  (or
   (counsel-more-chars)
   (let ((regex (setq ivy--old-re
                      (ivy--regex str t))))
     (counsel--async-command (format counsel-git-grep-cmd regex))
     nil)))

(defun counsel-git-grep-switch-cmd ()
  "Set `counsel-git-grep-cmd' to a different value."
  (interactive)
  (setq counsel-git-grep-cmd
        (ivy-read "cmd: " counsel-git-grep-cmd-history
                  :history 'counsel-git-grep-cmd-history))
  (setq counsel-git-grep-cmd-history
        (delete-dups counsel-git-grep-cmd-history))
  (unless (ivy-state-dynamic-collection ivy-last)
    (setq ivy--all-candidates
          (all-completions "" 'counsel-git-grep-function))))

(defvar counsel-gg-state nil
  "The current state of candidates / count sync.")

(defun counsel--gg-candidates (regex)
  "Return git grep candidates for REGEX."
  (setq counsel-gg-state -2)
  (counsel--gg-count regex)
  (let ((default-directory (ivy-state-directory ivy-last)))
    (set-process-filter
     (counsel--async-command (concat (format counsel-git-grep-cmd regex)
                                     " | head -n 200")
                             #'counsel--gg-sentinel)
     nil)))

(defun counsel--gg-sentinel (process _msg)
  "Sentinel function for a `counsel-git-grep' PROCESS."
  (when (eq (process-status process) 'exit)
    (cl-case (process-exit-status process)
      ((0 141)
       (with-current-buffer (process-buffer process)
         (setq ivy--all-candidates
               (or (split-string (buffer-string) "\n" t)
                   '("")))
         (setq ivy--old-cands ivy--all-candidates))
       (when (zerop (cl-incf counsel-gg-state))
         (ivy--exhibit)))
      (1
       (setq ivy--all-candidates '("Error"))
       (setq ivy--old-cands ivy--all-candidates)
       (ivy--exhibit)))))

(defun counsel--gg-count-sentinel (process _msg)
  "Sentinel function for a `counsel--gg-count' PROCESS."
  (when (and (eq (process-status process) 'exit)
             (zerop (process-exit-status process)))
    (with-current-buffer (process-buffer process)
      (setq ivy--full-length (string-to-number (buffer-string))))
    (when (zerop (cl-incf counsel-gg-state))
      (ivy--exhibit))))

(defun counsel--gg-count (regex &optional no-async)
  "Count the number of results matching REGEX in `counsel-git-grep'.
The command to count the matches is called asynchronously.
If NO-ASYNC is non-nil, do it synchronously instead."
  (let ((default-directory (ivy-state-directory ivy-last))
        (cmd (concat
              (format (replace-regexp-in-string
                       "--full-name" "-c"
                       counsel-git-grep-cmd)
                      ;; "git grep -i -c '%s'"
                      (replace-regexp-in-string
                       "-" "\\\\-"
                       (replace-regexp-in-string "'" "''" regex)))
              " | sed 's/.*:\\(.*\\)/\\1/g' | awk '{s+=$1} END {print s}'")))
    (if no-async
        (string-to-number (shell-command-to-string cmd))
      (set-process-filter
       (counsel--async-command cmd #'counsel--gg-count-sentinel
                               nil " *counsel-gg-count*")
       nil))))

(defun counsel-git-grep-occur ()
  "Generate a custom occur buffer for `counsel-git-grep'.
When REVERT is non-nil, regenerate the current *ivy-occur* buffer."
  (unless (eq major-mode 'ivy-occur-grep-mode)
    (ivy-occur-grep-mode)
    (setq default-directory (ivy-state-directory ivy-last)))
  (setq ivy-text
        (and (string-match "\"\\(.*\\)\"" (buffer-name))
             (match-string 1 (buffer-name))))
  (let* ((regex (funcall ivy--regex-function ivy-text))
         (positive-pattern (replace-regexp-in-string
                            ;; git-grep can't handle .*?
                            "\\.\\*\\?" ".*"
                            (if (stringp regex) regex (caar regex))))
         (negative-patterns
          (if (stringp regex) ""
            (mapconcat (lambda (x)
                         (and (null (cdr x))
                              (format "| grep -v %s" (car x))))
                       regex
                       " ")))
         (cmd (concat (format counsel-git-grep-cmd positive-pattern) negative-patterns))
         cands)
    (setq cands (split-string
                 (shell-command-to-string cmd)
                 "\n"
                 t))
    ;; Need precise number of header lines for `wgrep' to work.
    (insert (format "-*- mode:grep; default-directory: %S -*-\n\n\n"
                    default-directory))
    (insert (format "%d candidates:\n" (length cands)))
    (ivy--occur-insert-lines
     (mapcar
      (lambda (cand) (concat "./" cand))
      cands))))

(defun counsel-git-grep-query-replace ()
  "Start `query-replace' with string to replace from last search string."
  (interactive)
  (unless (window-minibuffer-p)
    (user-error
     "Should only be called in the minibuffer through `counsel-git-grep-map'"))
  (let* ((enable-recursive-minibuffers t)
         (from (ivy--regex ivy-text))
         (to (query-replace-read-to from "Query replace" t)))
    (ivy-exit-with-action
     (lambda (_)
       (let (done-buffers)
         (dolist (cand ivy--old-cands)
           (when (string-match "\\`\\(.*?\\):\\([0-9]+\\):\\(.*\\)\\'" cand)
             (with-ivy-window
               (let ((file-name (match-string-no-properties 1 cand)))
                 (setq file-name (expand-file-name
                                  file-name
                                  (ivy-state-directory ivy-last)))
                 (unless (member file-name done-buffers)
                   (push file-name done-buffers)
                   (find-file file-name)
                   (goto-char (point-min)))
                 (perform-replace from to t t nil))))))))))

;;** `counsel-git-stash'
(defun counsel-git-stash-kill-action (x)
  "Add git stash command to kill ring.
The git command applies the stash entry where candidate X was found in."
  (when (string-match "\\([^:]+\\):" x)
    (kill-new (message (format "git stash apply %s" (match-string 1 x))))))

;;;###autoload
(defun counsel-git-stash ()
  "Search through all available git stashes."
  (interactive)
  (let* ((default-directory (counsel-locate-git-root))
         (cands (split-string (shell-command-to-string
                               "IFS=$'\n'
for i in `git stash list --format=\"%gd\"`; do
    git stash show -p $i | grep -H --label=\"$i\" \"$1\"
done") "\n" t)))
    (ivy-read "git stash: " cands
              :action #'counsel-git-stash-kill-action
              :caller 'counsel-git-stash)))

;;** `counsel-git-log'
(defvar counsel-git-log-cmd "GIT_PAGER=cat git log --grep '%s'"
  "Command used for \"git log\".")

(defvar counsel-git-log-split-string-re "\ncommit "
  "The `split-string' separates when split output of `counsel-git-log-cmd'.")

(defun counsel-git-log-function (str)
  "Search for STR in git log."
  (or
   (counsel-more-chars)
   (progn
     ;; `counsel--yank-pop-format-function' uses this
     (setq ivy--old-re (funcall ivy--regex-function str))
     (counsel--async-command
      ;; "git log --grep" likes to have groups quoted e.g. \(foo\).
      ;; But it doesn't like the non-greedy ".*?".
      (format counsel-git-log-cmd
              (replace-regexp-in-string "\\.\\*\\?" ".*"
                                        (ivy-re-to-str ivy--old-re))))
     nil)))

(defun counsel-git-log-action (x)
  "Add candidate X to kill ring."
  (message "%S" (kill-new x)))

;;** `counsel-git-change-worktree'
(defun counsel-git-change-worktree-action (git-root-dir tree)
  "Find the corresponding file in the worktree located at tree.
The current buffer is assumed to be in a subdirectory of GIT-ROOT-DIR.
TREE is the selected candidate."
  (let* ((new-root-dir (counsel-git-worktree-parse-root tree))
         (tree-filename (file-relative-name buffer-file-name git-root-dir))
         (file-name (expand-file-name tree-filename new-root-dir)))
    (find-file file-name)))

(defun counsel-git-worktree-list ()
  "List worktrees in the git repository containing the current buffer."
  (let ((default-directory (counsel-locate-git-root)))
    (split-string (shell-command-to-string "git worktree list") "\n" t)))

(defun counsel-git-worktree-parse-root (tree)
  "Return worktree from candidate TREE."
  (substring tree 0 (string-match " " tree)))

(defun counsel-git-close-worktree-files-action (root-dir)
  "Close all buffers from the worktree located at ROOT-DIR."
  (setq root-dir (counsel-git-worktree-parse-root root-dir))
  (save-excursion
    (dolist (buf (buffer-list))
      (set-buffer buf)
      (and buffer-file-name
           (string= "." (file-relative-name root-dir (counsel-locate-git-root)))
           (kill-buffer buf)))))

(ivy-set-actions
 'counsel-git-change-worktree
 '(("k" counsel-git-close-worktree-files-action "kill all")))

;;;###autoload
(defun counsel-git-change-worktree ()
  "Find the file corresponding to the current buffer on a different worktree."
  (interactive)
  (let ((default-directory (counsel-locate-git-root)))
    (ivy-read "Select worktree: "
              (or (cl-delete default-directory (counsel-git-worktree-list)
                             :key #'counsel-git-worktree-parse-root :test #'string=)
                  (error "No other worktrees!"))
              :action (lambda (tree)
                        (counsel-git-change-worktree-action
                         (ivy-state-directory ivy-last) tree))
              :require-match t
              :caller 'counsel-git-change-worktree)))

;;** `counsel-git-checkout'
(defun counsel-git-checkout-action (branch)
  "Switch branch by invoking git-checkout(1).
The command is passed a single argument comprising all characters
in BRANCH up to, but not including, the first space
character (#x20), or the string's end if it lacks a space."
  (shell-command
   (format "git checkout %s" (substring branch 0 (string-match-p " " branch)))))

(defun counsel-git-branch-list ()
  "Return list of branches in the current git repository.
Value comprises all local and remote branches bar the one
currently checked out."
  (cl-mapcan (lambda (line)
               (and (string-match "\\`[[:blank:]]+" line)
                    (list (substring line (match-end 0)))))
             (let ((default-directory (counsel-locate-git-root)))
               (split-string (shell-command-to-string "git branch -vv --all")
                             "\n" t))))

;;;###autoload
(defun counsel-git-checkout ()
  "Call the \"git checkout\" command."
  (interactive)
  (ivy-read "Checkout branch: " (counsel-git-branch-list)
            :action #'counsel-git-checkout-action
            :caller 'counsel-git-checkout))

(defvar counsel-yank-pop-truncate-radius)

;;;###autoload
(defun counsel-git-log ()
  "Call the \"git log --grep\" shell command."
  (interactive)
  (let ((counsel-async-split-string-re counsel-git-log-split-string-re)
        (counsel-async-ignore-re "^[ \n]*$")
        (counsel-yank-pop-truncate-radius 5)
        (ivy-format-function #'counsel--yank-pop-format-function))
    (ivy-read "Grep log: " #'counsel-git-log-function
              :dynamic-collection t
              :action #'counsel-git-log-action
              :unwind #'counsel-delete-process
              :caller 'counsel-git-log)))

(add-to-list 'ivy-height-alist '(counsel-git-log . 4))

;;* File
;;** `counsel-find-file'
(defvar counsel-find-file-map
  (let ((map (make-sparse-keymap)))
    (define-key map (kbd "C-DEL") 'counsel-up-directory)
    (define-key map (kbd "C-<backspace>") 'counsel-up-directory)
    (define-key map (kbd "C-M-y") 'counsel-yank-directory)
    map))

(defun counsel-yank-directory ()
  "Yank the current directory into the minibuffer."
  (interactive)
  (insert ivy--directory))

(when (executable-find "git")
  (add-to-list 'ivy-ffap-url-functions 'counsel-github-url-p)
  (add-to-list 'ivy-ffap-url-functions 'counsel-emacs-url-p))
(add-to-list 'ivy-ffap-url-functions 'counsel-url-expand)
(defun counsel-find-file-cd-bookmark-action (_)
  "Reset `counsel-find-file' from selected directory."
  (ivy-read "cd: "
            (progn
              (ivy--virtual-buffers)
              (delete-dups
               (mapcar (lambda (x) (file-name-directory (cdr x)))
                       ivy--virtual-buffers)))
            :action (lambda (x)
                      (let ((default-directory (file-name-directory x)))
                        (counsel-find-file)))))

(defcustom counsel-root-command "sudo"
  "Command to gain root privileges."
  :type 'string
  :group 'ivy)

(defun counsel-find-file-as-root (x)
  "Find file X with root privileges."
  (counsel-require-program counsel-root-command)
  (let* ((host (file-remote-p x 'host))
         (file-name (format "/%s:%s:%s"
                            counsel-root-command
                            (or host "")
                            (expand-file-name
                             (if host
                                 (file-remote-p x 'localname)
                               x)))))
    ;; If the current buffer visits the same file we are about to open,
    ;; replace the current buffer with the new one.
    (if (eq (current-buffer) (get-file-buffer x))
        (find-alternate-file file-name)
      (find-file file-name))))

(defun counsel-find-file-delete (x)
  "Delete file X."
  (dired-delete-file x dired-recursive-deletes delete-by-moving-to-trash)
  (ivy--reset-state ivy-last))

(defun counsel-find-file-move (x)
  "Move or rename file X."
  (ivy-read "Rename file to: " #'read-file-name-internal
            :matcher #'counsel--find-file-matcher
            :action (lambda (new-name)
                      (require 'dired-aux)
                      (dired-rename-file x new-name 1))
            :keymap counsel-find-file-map
            :caller 'counsel-find-file-move))

(defun counsel-find-file-mkdir-action (_x)
  (make-directory (expand-file-name ivy-text ivy--directory)))

(ivy-set-actions
 'counsel-find-file
 '(("j" find-file-other-window "other window")
   ("f" find-file-other-frame "other frame")
   ("b" counsel-find-file-cd-bookmark-action "cd bookmark")
   ("x" counsel-find-file-extern "open externally")
   ("r" counsel-find-file-as-root "open as root")
   ("k" counsel-find-file-delete "delete")
   ("m" counsel-find-file-move "move or rename")
   ("d" counsel-find-file-mkdir-action "mkdir")))

(defcustom counsel-find-file-at-point nil
  "When non-nil, add file-at-point to the list of candidates."
  :type 'boolean
  :group 'ivy)

(defcustom counsel-preselect-current-file nil
  "When non-nil, preselect current file in list of candidates."
  :type 'boolean
  :group 'ivy)

(defcustom counsel-find-file-ignore-regexp nil
  "A regexp of files to ignore while in `counsel-find-file'.
These files are un-ignored if `ivy-text' matches them.  The
common way to show all files is to start `ivy-text' with a dot.

Example value: \"\\(?:\\`[#.]\\)\\|\\(?:[#~]\\'\\)\".  This will hide
temporary and lock files.
\\<ivy-minibuffer-map>
Choosing the dotfiles option, \"\\`\\.\", might be convenient,
since you can still access the dotfiles if your input starts with
a dot. The generic way to toggle ignored files is \\[ivy-toggle-ignore],
but the leading dot is a lot faster."
  :group 'ivy
  :type `(choice
          (const :tag "None" nil)
          (const :tag "Dotfiles" "\\`\\.")
          (const :tag "Ignored Extensions"
                 ,(regexp-opt completion-ignored-extensions))
          (regexp :tag "Regex")))

(defun counsel--find-file-matcher (regexp candidates)
  "Return REGEXP matching CANDIDATES.
Skip some dotfiles unless `ivy-text' requires them."
  (let ((res
         (ivy--re-filter
          regexp candidates
          (lambda (re-str)
            (lambda (x)
              (string-match re-str (directory-file-name x)))))))
    (if (or (null ivy-use-ignore)
            (null counsel-find-file-ignore-regexp)
            (string-match "\\`\\." ivy-text))
        res
      (or (cl-remove-if
           (lambda (x)
             (and
              (string-match counsel-find-file-ignore-regexp x)
              (not (member x ivy-extra-directories))))
           res)
          res))))

(declare-function ffap-guesser "ffap")

(defvar counsel-find-file-speedup-remote t
  "Speed up opening remote files by disabling `find-file-hook' for them.")

(defun counsel-find-file-action (x)
  "Find file X."
  (with-ivy-window
    (if (and counsel-find-file-speedup-remote
             (file-remote-p ivy--directory))
        (let ((find-file-hook nil))
          (find-file (expand-file-name x ivy--directory)))
      (find-file (expand-file-name x ivy--directory)))))

(defun counsel--preselect-file ()
  "Return candidate to preselect during filename completion.
The preselect behaviour can be customized via user options
`counsel-find-file-at-point' and
`counsel-preselect-current-file', which see."
  (or
   (when counsel-find-file-at-point
     (require 'ffap)
     (let ((f (ffap-guesser)))
       (when f (expand-file-name f))))
   (and counsel-preselect-current-file
        buffer-file-name
        (file-name-nondirectory buffer-file-name))))

;;;###autoload
(defun counsel-find-file (&optional initial-input)
  "Forward to `find-file'.
When INITIAL-INPUT is non-nil, use it in the minibuffer during completion."
  (interactive)
  (ivy-read "Find file: " #'read-file-name-internal
            :matcher #'counsel--find-file-matcher
            :initial-input initial-input
            :action #'counsel-find-file-action
            :preselect (counsel--preselect-file)
            :require-match 'confirm-after-completion
            :history 'file-name-history
            :keymap counsel-find-file-map
            :caller 'counsel-find-file))

(ivy-set-occur 'counsel-find-file 'counsel-find-file-occur)

(defvar counsel-find-file-occur-cmd "ls -a | grep -i -E '%s' | xargs -d '\\n' ls -d --group-directories-first"
  "Format string for `counsel-find-file-occur'.")

(defvar counsel-find-file-occur-use-find (not (eq system-type 'gnu/linux))
  "When non-nil, `counsel-find-file-occur' will use \"find\" as the base cmd.")

(defun counsel--expand-ls (cmd)
  "Expand CMD that ends in \"ls\" with switches."
  (concat cmd " " counsel-dired-listing-switches " | sed -e \"s/^/  /\""))

(defun counsel--occur-cmd-find ()
  (let* ((regex (counsel-unquote-regex-parens ivy--old-re))
         (cmd (format
               "find . -maxdepth 1 | grep -i -E '%s' | xargs -I {} find {} -maxdepth 0 -ls"
               regex)))
    (concat
     (counsel--cmd-to-dired-by-type "d" cmd)
     " && "
     (counsel--cmd-to-dired-by-type "f" cmd))))

(defun counsel--cmd-to-dired-by-type (type cmd)
  (let ((exclude-dots
         (if (string-match "^\\." ivy-text)
             ""
           " | grep -v '/\\\\.'")))
    (replace-regexp-in-string
     " | grep"
     (concat " -type " type exclude-dots " | grep") cmd)))

(defun counsel-find-file-occur ()
  (require 'find-dired)
  (cd ivy--directory)
  (if counsel-find-file-occur-use-find
      (counsel-cmd-to-dired
       (counsel--occur-cmd-find)
       'find-dired-filter)
    (counsel-cmd-to-dired
     (counsel--expand-ls
      (format counsel-find-file-occur-cmd
              (counsel-unquote-regex-parens ivy--old-re))))))

(defun counsel-up-directory ()
  "Go to the parent directory preselecting the current one.

If the current directory is remote and it's not possible to go up any
further, make the remote prefix editable"
  (interactive)
  (let* ((cur-dir (directory-file-name (expand-file-name ivy--directory)))
         (up-dir (file-name-directory cur-dir)))
    (if (and (file-remote-p cur-dir) (string-equal cur-dir up-dir))
        (progn
          ;; make the remote prefix editable
          (setq ivy--old-cands nil)
          (setq ivy--old-re nil)
          (ivy-set-index 0)
          (setq ivy--directory "")
          (setq ivy--all-candidates nil)
          (setq ivy-text "")
          (delete-minibuffer-contents)
          (insert up-dir))
      (ivy--cd up-dir)
      (setf (ivy-state-preselect ivy-last)
            (file-name-as-directory (file-name-nondirectory cur-dir))))))

(defun counsel-at-git-issue-p ()
  "When point is at an issue in a Git-versioned file, return the issue string."
  (and (looking-at "#[0-9]+")
       (or (eq (vc-backend buffer-file-name) 'Git)
           (eq major-mode 'magit-commit-mode)
           (bound-and-true-p magit-commit-mode))
       (match-string-no-properties 0)))

(defun counsel-github-url-p ()
  "Return a Github issue URL at point."
  (counsel-require-program "git")
  (let ((url (counsel-at-git-issue-p)))
    (when url
      (let ((origin (shell-command-to-string
                     "git remote get-url origin"))
            user repo)
        (cond ((string-match "\\`git@github.com:\\([^/]+\\)/\\(.*\\)\\.git$"
                             origin)
               (setq user (match-string 1 origin))
               (setq repo (match-string 2 origin)))
              ((string-match "\\`https://github.com/\\([^/]+\\)/\\(.*\\)$"
                             origin)
               (setq user (match-string 1 origin))
               (setq repo (match-string 2 origin))))
        (when user
          (setq url (format "https://github.com/%s/%s/issues/%s"
                            user repo (substring url 1))))))))

(defun counsel-emacs-url-p ()
  "Return a Debbugs issue URL at point."
  (counsel-require-program "git")
  (let ((url (counsel-at-git-issue-p)))
    (when url
      (let ((origin (shell-command-to-string
                     "git remote get-url origin")))
        (when (string-match "git.sv.gnu.org:/srv/git/emacs.git" origin)
          (format "http://debbugs.gnu.org/cgi/bugreport.cgi?bug=%s"
                  (substring url 1)))))))

(defvar counsel-url-expansions-alist nil
  "Map of regular expressions to expansions.

This variable should take the form of a list of (REGEXP . FORMAT)
pairs.

`counsel-url-expand' will expand the word at point according to
FORMAT for the first matching REGEXP.  FORMAT can be either a
string or a function.  If it is a string, it will be used as the
format string for the `format' function, with the word at point
as the next argument.  If it is a function, it will be called
with the word at point as the sole argument.

For example, a pair of the form:
  '(\"\\`BSERV-[[:digit:]]+\\'\" . \"https://jira.atlassian.com/browse/%s\")
will expand to URL `https://jira.atlassian.com/browse/BSERV-100'
when the word at point is BSERV-100.

If the format element is a function, more powerful
transformations are possible.  As an example,
  '(\"\\`issue\\([[:digit:]]+\\)\\'\" .
    (lambda (word)
      (concat \"http://debbugs.gnu.org/cgi/bugreport.cgi?bug=\"
              (match-string 1 word))))
trims the \"issue\" prefix from the word at point before creating the URL.")

(defun counsel-url-expand ()
  "Expand word at point using `counsel-url-expansions-alist'.
The first pair in the list whose regexp matches the word at point
will be expanded according to its format.  This function is
intended to be used in `ivy-ffap-url-functions' to browse the
result as a URL."
  (let ((word-at-point (current-word)))
    (cl-some
     (lambda (pair)
       (let ((regexp (car pair))
             (formatter (cdr pair)))
         (when (string-match regexp word-at-point)
           (if (functionp formatter)
               (funcall formatter word-at-point)
             (format formatter word-at-point)))))
     counsel-url-expansions-alist)))

;;** `counsel-recentf'
(defvar recentf-list)
(declare-function recentf-mode "recentf")

;;;###autoload
(defun counsel-recentf ()
  "Find a file on `recentf-list'."
  (interactive)
  (require 'recentf)
  (recentf-mode)
  (ivy-read "Recentf: " (mapcar #'substring-no-properties recentf-list)
            :action (lambda (f)
                      (with-ivy-window
                        (find-file f)))
            :caller 'counsel-recentf))
(ivy-set-actions
 'counsel-recentf
 '(("j" find-file-other-window "other window")
   ("f" find-file-other-frame "other frame")
   ("x" counsel-find-file-extern "open externally")))

;;** `counsel-bookmark'
(defcustom counsel-bookmark-avoid-dired nil
  "If non-nil, open directory bookmarks with `counsel-find-file'.
By default `counsel-bookmark' opens a dired buffer for directories."
  :type 'boolean
  :group 'ivy)

(defvar bookmark-alist)
(declare-function bookmark-location "bookmark")
(declare-function bookmark-all-names "bookmark")
(declare-function bookmark-get-filename "bookmark")
(declare-function bookmark-maybe-load-default-file "bookmark")

;;;###autoload
(defun counsel-bookmark ()
  "Forward to `bookmark-jump' or `bookmark-set' if bookmark doesn't exist."
  (interactive)
  (require 'bookmark)
  (ivy-read "Create or jump to bookmark: "
            (bookmark-all-names)
            :history 'bookmark-history
            :action (lambda (x)
                      (cond ((and counsel-bookmark-avoid-dired
                                  (member x (bookmark-all-names))
                                  (file-directory-p (bookmark-location x)))
                             (with-ivy-window
                               (let ((default-directory (bookmark-location x)))
                                 (counsel-find-file))))
                            ((member x (bookmark-all-names))
                             (with-ivy-window
                               (bookmark-jump x)))
                            (t
                             (bookmark-set x))))
            :caller 'counsel-bookmark))

(defun counsel--apply-bookmark-fn (fn)
  "Return a function applyinig FN to a bookmark's location."
  (lambda (bookmark)
    (funcall fn (bookmark-location bookmark))))

(ivy-set-actions
 'counsel-bookmark
 `(("d" bookmark-delete "delete")
   ("e" bookmark-rename "edit")
   ("x" ,(counsel--apply-bookmark-fn #'counsel-find-file-extern)
        "open externally")
   ("r" ,(counsel--apply-bookmark-fn #'counsel-find-file-as-root)
        "open as root")))

;;** `counsel-bookmarked-directory'
(defun counsel-bookmarked-directory--candidates ()
  "Get a list of bookmarked directories sorted by file path."
  (bookmark-maybe-load-default-file)
  (sort (cl-remove-if-not
         #'ivy--dirname-p
         (delq nil (mapcar #'bookmark-get-filename bookmark-alist)))
        #'string<))

;;;###autoload
(defun counsel-bookmarked-directory ()
  "Ivy interface for bookmarked directories.

With a prefix argument, this command creates a new bookmark which points to the
current value of `default-directory'."
  (interactive)
  (require 'bookmark)
  (ivy-read "Bookmarked directory: "
            (counsel-bookmarked-directory--candidates)
            :caller 'counsel-bookmarked-directory
            :action #'dired))

(ivy-set-actions 'counsel-bookmarked-directory
                 '(("j" dired-other-window "other window")
                   ("x" counsel-find-file-extern "open externally")
                   ("r" counsel-find-file-as-root "open as root")
                   ("f" (lambda (dir)
                          (let ((default-directory dir))
                            (call-interactively #'find-file)))
                    "find-file")))

;;** `counsel-file-register'
;;;###autoload
(defun counsel-file-register ()
  "Search file in register.

You cannot use Emacs' normal register commands to create file
registers.  Instead you must use the `set-register' function like
so: `(set-register ?i \"/home/eric/.emacs.d/init.el\")'.  Now you
can use `C-x r j i' to open that file."
  (interactive)
  (ivy-read "File Register: "
            ;; Use the `register-alist' variable to filter out file
            ;; registers.  Each entry for a file registar will have the
            ;; following layout:
            ;;
            ;;     (NUMBER 'file . "string/path/to/file")
            ;;
            ;; So we go through each entry and see if the `cadr' is
            ;; `eq' to the symbol `file'.  If so then add the filename
            ;; (`cddr') which `ivy-read' will use for its choices.
            (mapcar (lambda (register-alist-entry)
                      (if (eq 'file (cadr register-alist-entry))
                          (cddr register-alist-entry)))
                    register-alist)
            :sort t
            :require-match t
            :history 'counsel-file-register
            :caller 'counsel-file-register
            :action (lambda (register-file)
                      (with-ivy-window (find-file register-file)))))

(ivy-set-actions
 'counsel-file-register
 '(("j" find-file-other-window "other window")))

;;** `counsel-locate'
(defcustom counsel-locate-cmd (cond ((eq system-type 'darwin)
                                     'counsel-locate-cmd-noregex)
                                    ((and (eq system-type 'windows-nt)
                                          (executable-find "es.exe"))
                                     'counsel-locate-cmd-es)
                                    (t
                                     'counsel-locate-cmd-default))
  "The function for producing a locate command string from the input.

The function takes a string - the current input, and returns a
string - the full shell command to run."
  :group 'ivy
  :type '(choice
          (const :tag "Default" counsel-locate-cmd-default)
          (const :tag "No regex" counsel-locate-cmd-noregex)
          (const :tag "mdfind" counsel-locate-cmd-mdfind)
          (const :tag "everything" counsel-locate-cmd-es)))

(ivy-set-actions
 'counsel-locate
 '(("x" counsel-locate-action-extern "xdg-open")
   ("r" counsel-find-file-as-root "open as root")
   ("d" counsel-locate-action-dired "dired")))

(counsel-set-async-exit-code 'counsel-locate 1 "Nothing found")

(defvar counsel-locate-history nil
  "History for `counsel-locate'.")

(defun counsel-locate-action-extern (x)
  "Pass X to `xdg-open' or equivalent command via the shell."
  (interactive "FFile: ")
  (if (and (eq system-type 'windows-nt)
           (fboundp 'w32-shell-execute))
      (w32-shell-execute "open" x)
    (start-process-shell-command shell-file-name nil
                                 (format "%s %s"
                                         (cl-case system-type
                                           (darwin "open")
                                           (cygwin "cygstart")
                                           (t "xdg-open"))
                                         (shell-quote-argument x)))))

(defalias 'counsel-find-file-extern #'counsel-locate-action-extern)

(declare-function dired-jump "dired-x")

(defun counsel-locate-action-dired (x)
  "Use `dired-jump' on X."
  (dired-jump nil x))

(defun counsel-locate-cmd-default (input)
  "Return a shell command based on INPUT."
  (counsel-require-program "locate")
  (format "locate -i --regex '%s'"
          (counsel-unquote-regex-parens
           (ivy--regex input))))

(defun counsel-locate-cmd-noregex (input)
  "Return a shell command based on INPUT."
  (counsel-require-program "locate")
  (format "locate -i '%s'" input))

(defun counsel-locate-cmd-mdfind (input)
  "Return a shell command based on INPUT."
  (counsel-require-program "mdfind")
  (format "mdfind -name '%s'" input))

(defun counsel-locate-cmd-es (input)
  "Return a shell command based on INPUT."
  (counsel-require-program "es.exe")
  (format "es.exe -i -r -p %s"
          (counsel-unquote-regex-parens
           (ivy--regex input t))))

(defun counsel-locate-function (input)
  "Call the \"locate\" shell command with INPUT."
  (or
   (counsel-more-chars)
   (progn
     (counsel--async-command
      (funcall counsel-locate-cmd input))
     '("" "working..."))))

;;;###autoload
(defun counsel-locate (&optional initial-input)
  "Call the \"locate\" shell command.
INITIAL-INPUT can be given as the initial minibuffer input."
  (interactive)
  (ivy-read "Locate: " #'counsel-locate-function
            :initial-input initial-input
            :dynamic-collection t
            :history 'counsel-locate-history
            :action (lambda (file)
                      (when file
                        (with-ivy-window
                          (find-file
                           (concat (file-remote-p default-directory) file)))))
            :unwind #'counsel-delete-process
            :caller 'counsel-locate))

;;** `counsel-fzf'
(defvar counsel-fzf-cmd "fzf -f \"%s\""
  "Command for `counsel-fzf'.")

(defvar counsel--fzf-dir nil
  "Store the base fzf directory.")

(defvar counsel-fzf-dir-function 'counsel-fzf-dir-function-projectile
  "Function that returns a directory for fzf to use.")

(defun counsel-fzf-dir-function-projectile ()
  (if (and
       (fboundp 'projectile-project-p)
       (fboundp 'projectile-project-root)
       (projectile-project-p))
      (projectile-project-root)
    default-directory))

(defun counsel-fzf-function (str)
  (let ((default-directory counsel--fzf-dir))
    (counsel--async-command
     (format counsel-fzf-cmd
             (if (string-equal str "")
                 "\"\""
               (setq ivy--old-re (ivy--regex-fuzzy str))
               str))))
  nil)

;;;###autoload
(defun counsel-fzf (&optional initial-input initial-directory fzf-prompt)
  "Open a file using the fzf shell command.
INITIAL-INPUT can be given as the initial minibuffer input.
INITIAL-DIRECTORY, if non-nil, is used as the root directory for search.
FZF-PROMPT, if non-nil, is passed as `ivy-read' prompt argument."
  (interactive
   (let ((fzf-basename (car (split-string counsel-fzf-cmd))))
     (list nil
           (when current-prefix-arg
             (read-directory-name (concat
                                   fzf-basename
                                   " in directory: "))))))

  (let ((fzf-basename (car (split-string counsel-fzf-cmd))))
    (counsel-require-program fzf-basename)
    (setq counsel--fzf-dir
          (or initial-directory
              (funcall counsel-fzf-dir-function)))
    (ivy-read (or fzf-prompt (concat fzf-basename ": "))
              #'counsel-fzf-function
              :initial-input initial-input
              :re-builder #'ivy--regex-fuzzy
              :dynamic-collection t
              :action #'counsel-fzf-action
              :unwind #'counsel-delete-process
              :caller 'counsel-fzf)))

(ivy-set-prompt 'counsel-fzf #'counsel-prompt-function-default)

(defun counsel-fzf-action (x)
  "Find file X in current fzf directory."
  (with-ivy-window
    (let ((default-directory counsel--fzf-dir))
      (find-file x))))

(defun counsel-fzf-occur ()
  "Occur function for `counsel-fzf' using `counsel-cmd-to-dired'."
  (cd counsel--fzf-dir)
  (counsel-cmd-to-dired
   (counsel--expand-ls
    (format
     "%s --print0 | xargs -0 ls"
     (format counsel-fzf-cmd ivy-text)))))

(ivy-set-occur 'counsel-fzf 'counsel-fzf-occur)

(ivy-set-actions
 'counsel-fzf
 '(("x" counsel-locate-action-extern "xdg-open")
   ("d" counsel-locate-action-dired "dired")))

(counsel-set-async-exit-code 'counsel-fzf 1 "Nothing found")

;;** `counsel-dpkg'
;;;###autoload
(defun counsel-dpkg ()
  "Call the \"dpkg\" shell command."
  (interactive)
  (counsel-require-program "dpkg")
  (let ((cands (mapcar
                (lambda (x)
                  (let ((y (split-string x "  +")))
                    (cons (format "%-40s   %s"
                                  (ivy--truncate-string
                                   (nth 1 y) 40)
                                  (nth 4 y))
                          (mapconcat #'identity y " "))))
                (split-string
                 (shell-command-to-string "dpkg -l | tail -n+6") "\n" t))))
    (ivy-read "dpkg: " cands
              :action (lambda (x)
                        (message (cdr x)))
              :caller 'counsel-dpkg)))

;;** `counsel-rpm'
;;;###autoload
(defun counsel-rpm ()
  "Call the \"rpm\" shell command."
  (interactive)
  (counsel-require-program "rpm")
  (let ((cands (mapcar
                (lambda (x)
                  (let ((y (split-string x "|")))
                    (cons (format "%-40s   %s"
                                  (ivy--truncate-string
                                   (nth 0 y) 40)
                                  (nth 1 y))
                          (mapconcat #'identity y " "))))
                (split-string
                 (shell-command-to-string "rpm -qa --qf \"%{NAME}|%{SUMMARY}\\n\"") "\n" t))))
    (ivy-read "rpm: " cands
              :action (lambda (x)
                        (message (cdr x)))
              :caller 'counsel-rpm)))

;;** `counsel-file-jump'
;;;###autoload
(defun counsel-file-jump (&optional initial-input initial-directory)
  "Jump to a file below the current directory.
List all files within the current directory or any of its subdirectories.
INITIAL-INPUT can be given as the initial minibuffer input.
INITIAL-DIRECTORY, if non-nil, is used as the root directory for search."
  (interactive
   (list nil
         (when current-prefix-arg
           (read-directory-name "From directory: "))))
  (counsel-require-program "find")
  (let* ((default-directory (or initial-directory default-directory)))
    (ivy-read "Find file: "
              (split-string
               (shell-command-to-string
                (concat find-program " * -type f -not -path '*\/.git*'"))
               "\n" t)
              :matcher #'counsel--find-file-matcher
              :initial-input initial-input
              :action (lambda (x)
                        (with-ivy-window
                          (find-file (expand-file-name x ivy--directory))))
              :preselect (counsel--preselect-file)
              :require-match 'confirm-after-completion
              :history 'file-name-history
              :keymap counsel-find-file-map
              :caller 'counsel-file-jump)))

;;** `counsel-dired-jump'
;;;###autoload
(defun counsel-dired-jump (&optional initial-input initial-directory)
  "Jump to a directory (in dired) below the current directory.
List all subdirectories within the current directory.
INITIAL-INPUT can be given as the initial minibuffer input.
INITIAL-DIRECTORY, if non-nil, is used as the root directory for search."
  (interactive
   (list nil
         (when current-prefix-arg
           (read-directory-name "From directory: "))))
  (counsel-require-program "find")
  (let* ((default-directory (or initial-directory default-directory)))
    (ivy-read "Directory: "
              (split-string
               (shell-command-to-string
                (concat find-program " * -type d -not -path '*\/.git*'"))
               "\n" t)
              :initial-input initial-input
              :action (lambda (d) (dired-jump nil (expand-file-name d)))
              :caller 'counsel-dired-jump)))

;;* Grep
(defun counsel--grep-mode-occur (git-grep-dir-is-file)
  "Generate a custom occur buffer for grep like commands.
If GIT-GREP-DIR-IS-FILE is t, then `ivy-state-directory' is treated as a full
path to a file rather than a directory (e.g. for `counsel-grep-occur').

This function expects that the candidates have already been filtered.
It applies no filtering to ivy--all-candidates."
  (unless (eq major-mode 'ivy-occur-grep-mode)
    (ivy-occur-grep-mode))
  (let* ((directory
          (if git-grep-dir-is-file
              (file-name-directory (ivy-state-directory ivy-last))
            (ivy-state-directory ivy-last)))
         (prepend
          (if git-grep-dir-is-file
              (concat (file-name-nondirectory
                       (ivy-state-directory ivy-last)) ":")
            "")))
    (setq default-directory directory)
    ;; Need precise number of header lines for `wgrep' to work.
    (insert (format "-*- mode:grep; default-directory: %S -*-\n\n\n" default-directory))
    (insert (format "%d candidates:\n" (length ivy--all-candidates)))
    (ivy--occur-insert-lines
     (mapcar (lambda (cand) (concat "./" prepend cand)) ivy--all-candidates))))

;;** `counsel-ag'
(defvar counsel-ag-map
  (let ((map (make-sparse-keymap)))
    (define-key map (kbd "C-l") 'ivy-call-and-recenter)
    (define-key map (kbd "M-q") 'counsel-git-grep-query-replace)
    (define-key map (kbd "C-'") 'swiper-avy)
    map))

(defcustom counsel-ag-base-command
  (if (memq system-type '(ms-dos windows-nt))
      "ag --vimgrep %s"
    "ag --nocolor --nogroup %s")
  "Format string to use in `counsel-ag-function' to construct the command.
The %s will be replaced by optional extra ag arguments followed by the
regex string."
  :type 'string
  :group 'ivy)

(defvar counsel-ag-command nil)

(counsel-set-async-exit-code 'counsel-ag 1 "No matches found")
(ivy-set-occur 'counsel-ag 'counsel-ag-occur)
(ivy-set-display-transformer 'counsel-ag 'counsel-git-grep-transformer)

(defconst counsel--command-args-separator "-- ")

(defun counsel--split-command-args (arguments)
  "Split ARGUMENTS into its switches and search-term parts.
Return pair of corresponding strings (SWITCHES . SEARCH-TERM)."
  (let ((switches "")
        (search-term arguments))
    (when (string-prefix-p "-" arguments)
      (let ((index (string-match counsel--command-args-separator arguments)))
        (when index
          (setq search-term
                (substring arguments (+ (length counsel--command-args-separator) index)))
          (setq switches (substring arguments 0 index)))))
    (cons switches search-term)))

(defun counsel--format-ag-command (extra-args needle)
  "Construct a complete `counsel-ag-command' as a string.
EXTRA-ARGS is a string of the additional arguments.
NEEDLE is the search string."
  (format counsel-ag-command
          (if (string-match " \\(--\\) " extra-args)
              (replace-match needle t t extra-args 1)
            (concat extra-args " " needle))))

(defun counsel-ag-function (string)
  "Grep in the current directory for STRING."
  (let ((command-args (counsel--split-command-args string)))
    (let ((switches (car command-args))
          (search-term (cdr command-args)))
      (if (< (length search-term) 3)
          (let ((ivy-text search-term))
            (counsel-more-chars))
        (let ((default-directory (ivy-state-directory ivy-last))
              (regex (counsel-unquote-regex-parens
                      (setq ivy--old-re
                            (ivy--regex search-term)))))
          (counsel--async-command (counsel--format-ag-command
                                   switches
                                   (shell-quote-argument regex)))
          nil)))))

;;;###autoload
(defun counsel-ag (&optional initial-input initial-directory extra-ag-args ag-prompt)
  "Grep for a string in the current directory using ag.
INITIAL-INPUT can be given as the initial minibuffer input.
INITIAL-DIRECTORY, if non-nil, is used as the root directory for search.
EXTRA-AG-ARGS string, if non-nil, is appended to `counsel-ag-base-command'.
AG-PROMPT, if non-nil, is passed as `ivy-read' prompt argument."
  (interactive)
  (setq counsel-ag-command counsel-ag-base-command)
  (counsel-require-program (car (split-string counsel-ag-command)))
  (when current-prefix-arg
    (setq initial-directory
          (or initial-directory
              (read-directory-name (concat
                                    (car (split-string counsel-ag-command))
                                    " in directory: "))))
    (setq extra-ag-args
          (or extra-ag-args
              (read-from-minibuffer (format
                                     "%s args: "
                                     (car (split-string counsel-ag-command)))))))
  (setq counsel-ag-command (counsel--format-ag-command (or extra-ag-args "") "%s"))
  (let ((default-directory (or initial-directory
                               (locate-dominating-file default-directory ".git")
                               default-directory)))
    (ivy-read (or ag-prompt (car (split-string counsel-ag-command)))
              #'counsel-ag-function
              :initial-input initial-input
              :dynamic-collection t
              :keymap counsel-ag-map
              :history 'counsel-git-grep-history
              :action #'counsel-git-grep-action
              :unwind (lambda ()
                        (counsel-delete-process)
                        (swiper--cleanup))
              :caller 'counsel-ag)))

(ivy-set-prompt 'counsel-ag #'counsel-prompt-function-default)
(cl-pushnew 'counsel-ag ivy-highlight-grep-commands)

(defun counsel-grep-like-occur (cmd-template)
  (unless (eq major-mode 'ivy-occur-grep-mode)
    (ivy-occur-grep-mode)
    (setq default-directory (ivy-state-directory ivy-last)))
  (setq ivy-text
        (and (string-match "\"\\(.*\\)\"" (buffer-name))
             (match-string 1 (buffer-name))))
  (let* ((command-args (counsel--split-command-args ivy-text))
         (cmd (format cmd-template
                      (concat
                       (car command-args)
                       (shell-quote-argument
                        (counsel-unquote-regex-parens
                         (ivy--regex (cdr command-args)))))))
         (cands (split-string (shell-command-to-string cmd) "\n" t)))
    ;; Need precise number of header lines for `wgrep' to work.
    (insert (format "-*- mode:grep; default-directory: %S -*-\n\n\n"
                    default-directory))
    (insert (format "%d candidates:\n" (length cands)))
    (ivy--occur-insert-lines
     (mapcar
      (lambda (cand) (concat "./" cand))
      cands))))

(defun counsel-ag-occur ()
  "Generate a custom occur buffer for `counsel-ag'."
  (counsel-grep-like-occur
   counsel-ag-command))

;;** `counsel-pt'
(defcustom counsel-pt-base-command "pt --nocolor --nogroup -e %s"
  "Alternative to `counsel-ag-base-command' using pt."
  :type 'string
  :group 'ivy)

;;;###autoload
(defun counsel-pt (&optional initial-input)
  "Grep for a string in the current directory using pt.
INITIAL-INPUT can be given as the initial minibuffer input.
This uses `counsel-ag' with `counsel-pt-base-command' instead of
`counsel-ag-base-command'."
  (interactive)
  (let ((counsel-ag-base-command counsel-pt-base-command))
    (counsel-ag initial-input)))
(cl-pushnew 'counsel-pt ivy-highlight-grep-commands)

;;** `counsel-ack'
(defcustom counsel-ack-base-command
  (concat
   (file-name-nondirectory
    (or (executable-find "ack-grep") "ack"))
   " --nocolor --nogroup %s")
  "Alternative to `counsel-ag-base-command' using ack."
  :type 'string
  :group 'ivy)

;;;###autoload
(defun counsel-ack (&optional initial-input)
  "Grep for a string in the current directory using ack.
INITIAL-INPUT can be given as the initial minibuffer input.
This uses `counsel-ag' with `counsel-ack-base-command' replacing
`counsel-ag-base-command'."
  (interactive)
  (let ((counsel-ag-base-command counsel-ack-base-command))
    (counsel-ag initial-input)))


;;** `counsel-rg'
(defcustom counsel-rg-base-command "rg -S --no-heading --line-number --color never %s ."
  "Alternative to `counsel-ag-base-command' using ripgrep.

Note: don't use single quotes for the regex."
  :type 'string
  :group 'ivy)

(counsel-set-async-exit-code 'counsel-rg 1 "No matches found")
(ivy-set-occur 'counsel-rg 'counsel-ag-occur)
(ivy-set-display-transformer 'counsel-rg 'counsel-git-grep-transformer)

;;;###autoload
(defun counsel-rg (&optional initial-input initial-directory extra-rg-args rg-prompt)
  "Grep for a string in the current directory using rg.
INITIAL-INPUT can be given as the initial minibuffer input.
INITIAL-DIRECTORY, if non-nil, is used as the root directory for search.
EXTRA-RG-ARGS string, if non-nil, is appended to `counsel-rg-base-command'.
RG-PROMPT, if non-nil, is passed as `ivy-read' prompt argument."
  (interactive)
  (let ((counsel-ag-base-command counsel-rg-base-command))
    (counsel-ag initial-input initial-directory extra-rg-args rg-prompt)))
(cl-pushnew 'counsel-rg ivy-highlight-grep-commands)

;;** `counsel-grep'
(defvar counsel-grep-map
  (let ((map (make-sparse-keymap)))
    (define-key map (kbd "C-l") 'ivy-call-and-recenter)
    (define-key map (kbd "M-q") 'swiper-query-replace)
    (define-key map (kbd "C-'") 'swiper-avy)
    map))

(defcustom counsel-grep-base-command "grep -E -n -e %s %s"
  "Format string used by `counsel-grep' to build a shell command.
It should contain two %-sequences (see function `format') to be
substituted by the search regexp and file, respectively.  Neither
%-sequence should be contained in single quotes."
  :type 'string
  :group 'ivy)

(defvar counsel-grep-command nil)

(defun counsel-grep-function (string)
  "Grep in the current directory for STRING."
  (or
   (counsel-more-chars)
   (let ((regex (counsel-unquote-regex-parens
                 (setq ivy--old-re
                       (ivy--regex string)))))
     (counsel--async-command
      (format counsel-grep-command (shell-quote-argument regex)))
     nil)))

(defun counsel-grep-action (x)
  "Go to candidate X."
  (with-ivy-window
    (swiper--cleanup)
    (let ((default-directory
           (file-name-directory
            (ivy-state-directory ivy-last)))
          file-name line-number)
      (when (cond ((string-match "\\`\\([0-9]+\\):\\(.*\\)\\'" x)
                   (setq file-name (buffer-file-name (ivy-state-buffer ivy-last)))
                   (setq line-number (match-string-no-properties 1 x)))
                  ((string-match "\\`\\([^:]+\\):\\([0-9]+\\):\\(.*\\)\\'" x)
                   (setq file-name (match-string-no-properties 1 x))
                   (setq line-number (match-string-no-properties 2 x))))
        ;; If the file buffer is already open, just get it. Prevent doing
        ;; `find-file', as that file could have already been opened using
        ;; `find-file-literally'.
        (with-current-buffer (or (get-file-buffer file-name)
                                 (find-file file-name))
          (setq line-number (string-to-number line-number))
          (if counsel-grep-last-line
              (forward-line (- line-number counsel-grep-last-line))
            (goto-char (point-min))
            (forward-line (1- line-number)))
          (setq counsel-grep-last-line line-number)
          (re-search-forward (ivy--regex ivy-text t) (line-end-position) t)
          (run-hooks 'counsel-grep-post-action-hook)
          (if (eq ivy-exit 'done)
              (swiper--ensure-visible)
            (isearch-range-invisible (line-beginning-position)
                                     (line-end-position))
            (swiper--add-overlays (ivy--regex ivy-text))))))))

(defun counsel-grep-occur ()
  "Generate a custom occur buffer for `counsel-grep'."
  (counsel-grep-like-occur
   (format
    "grep -niE %%s %s /dev/null"
    (shell-quote-argument
     (file-name-nondirectory
      (buffer-file-name
       (ivy-state-buffer ivy-last)))))))

(ivy-set-occur 'counsel-grep 'counsel-grep-occur)
(counsel-set-async-exit-code 'counsel-grep 1 "")

;;;###autoload
(defun counsel-grep (&optional initial-input)
  "Grep for a string in the file visited by the current buffer.
When non-nil, INITIAL-INPUT is the initial search pattern."
  (interactive)
  (unless buffer-file-name
    (user-error "Current buffer is not visiting a file"))
  (counsel-require-program (car (split-string counsel-grep-base-command)))
  (setq counsel-grep-last-line nil)
  (setq counsel-grep-command
        (format counsel-grep-base-command
                "%s" (shell-quote-argument buffer-file-name)))
  (let ((init-point (point))
        res)
    (unwind-protect
         (setq res (ivy-read "grep: " 'counsel-grep-function
                             :initial-input initial-input
                             :dynamic-collection t
                             :preselect
                             (when (< (- (line-end-position) (line-beginning-position)) 300)
                               (format "%d:%s"
                                       (line-number-at-pos)
                                       (regexp-quote
                                        (buffer-substring-no-properties
                                         (line-beginning-position)
                                         (line-end-position)))))

                             :keymap counsel-grep-map
                             :history 'counsel-git-grep-history
                             :update-fn (lambda ()
                                          (counsel-grep-action (ivy-state-current ivy-last)))
                             :re-builder #'ivy--regex
                             :action #'counsel-grep-action
                             :unwind (lambda ()
                                       (counsel-delete-process)
                                       (swiper--cleanup))
                             :caller 'counsel-grep))
      (unless res
        (goto-char init-point)))))

;;** `counsel-grep-or-swiper'
(defcustom counsel-grep-swiper-limit 300000
  "Buffer size threshold for `counsel-grep-or-swiper'.
When the number of characters in a buffer exceeds this threshold,
`counsel-grep' will be used instead of `swiper'."
  :type 'integer
  :group 'ivy)

;;;###autoload
(defun counsel-grep-or-swiper (&optional initial-input)
  "Call `swiper' for small buffers and `counsel-grep' for large ones.
When non-nil, INITIAL-INPUT is the initial search pattern."
  (interactive)
  (if (or (not buffer-file-name)
          (buffer-narrowed-p)
          (ignore-errors
            (file-remote-p buffer-file-name))
          (jka-compr-get-compression-info buffer-file-name)
          (<= (buffer-size)
              (/ counsel-grep-swiper-limit
                 (if (eq major-mode 'org-mode) 4 1))))
      (swiper initial-input)
    (when (file-writable-p buffer-file-name)
      (save-buffer))
    (counsel-grep initial-input)))

;;** `counsel-recoll'
(defun counsel-recoll-function (str)
  "Run recoll for STR."
  (or
   (counsel-more-chars)
   (progn
     (counsel--async-command
      (format "recoll -t -b %s"
              (shell-quote-argument str)))
     nil)))

;; This command uses the recollq command line tool that comes together
;; with the recoll (the document indexing database) source:
;;     http://www.lesbonscomptes.com/recoll/download.html
;; You need to build it yourself (together with recoll):
;;     cd ./query && make && sudo cp recollq /usr/local/bin
;; You can try the GUI version of recoll with:
;;     sudo apt-get install recoll
;; Unfortunately, that does not install recollq.
(defun counsel-recoll (&optional initial-input)
  "Search for a string in the recoll database.
You'll be given a list of files that match.
Selecting a file will launch `swiper' for that file.
INITIAL-INPUT can be given as the initial minibuffer input."
  (interactive)
  (counsel-require-program "recoll")
  (ivy-read "recoll: " 'counsel-recoll-function
            :initial-input initial-input
            :dynamic-collection t
            :history 'counsel-git-grep-history
            :action (lambda (x)
                      (when (string-match "file://\\(.*\\)\\'" x)
                        (let ((file-name (match-string 1 x)))
                          (find-file file-name)
                          (unless (string-match "pdf$" x)
                            (swiper ivy-text)))))
            :unwind #'counsel-delete-process
            :caller 'counsel-recoll))

;;* Org
;;** `counsel-org-tag'
(defvar counsel-org-tags nil
  "Store the current list of tags.")

(defvar org-outline-regexp)
(defvar org-indent-mode)
(defvar org-indent-indentation-per-level)
(defvar org-tags-column)
(declare-function org-get-tags-string "org")
(declare-function org-move-to-column "org-compat")

(defun counsel-org-change-tags (tags)
  "Change tags of current org headline to TAGS."
  (let ((current (org-get-tags-string))
        (col (current-column))
        level)
    ;; Insert new tags at the correct column
    (beginning-of-line 1)
    (setq level (or (and (looking-at org-outline-regexp)
                         (- (match-end 0) (point) 1))
                    1))
    (cond
      ((and (equal current "") (equal tags "")))
      ((re-search-forward
        (concat "\\([ \t]*" (regexp-quote current) "\\)[ \t]*$")
        (line-end-position) t)
       (if (equal tags "")
           (delete-region
            (match-beginning 0)
            (match-end 0))
         (goto-char (match-beginning 0))
         (let* ((c0 (current-column))
                ;; compute offset for the case of org-indent-mode active
                (di (if (bound-and-true-p org-indent-mode)
                        (* (1- org-indent-indentation-per-level) (1- level))
                      0))
                (p0 (if (equal (char-before) ?*) (1+ (point)) (point)))
                (tc (+ org-tags-column (if (> org-tags-column 0) (- di) di)))
                (c1 (max (1+ c0) (if (> tc 0) tc (- (- tc) (string-width tags)))))
                (rpl (concat (make-string (max 0 (- c1 c0)) ?\ ) tags)))
           (replace-match rpl t t)
           (and c0 indent-tabs-mode (tabify p0 (point)))
           tags)))
      (t (error "Tags alignment failed")))
    (org-move-to-column col)))

(defun counsel-org--set-tags ()
  "Set tags of current org headline to `counsel-org-tags'."
  (counsel-org-change-tags
   (if counsel-org-tags
       (format ":%s:"
               (mapconcat #'identity counsel-org-tags ":"))
     "")))

(defvar org-agenda-bulk-marked-entries)

(declare-function org-get-at-bol "org")
(declare-function org-agenda-error "org-agenda")

(defun counsel-org-tag-action (x)
  "Add tag X to `counsel-org-tags'.
If X is already part of the list, remove it instead.  Quit the selection if
X is selected by either `ivy-done', `ivy-alt-done' or `ivy-immediate-done',
otherwise continue prompting for tags."
  (if (member x counsel-org-tags)
      (progn
        (setq counsel-org-tags (delete x counsel-org-tags)))
    (unless (equal x "")
      (setq counsel-org-tags (append counsel-org-tags (list x)))
      (unless (member x ivy--all-candidates)
        (setq ivy--all-candidates (append ivy--all-candidates (list x))))))
  (let ((prompt (counsel-org-tag-prompt)))
    (setf (ivy-state-prompt ivy-last) prompt)
    (setq ivy--prompt (concat "%-4d " prompt)))
  (cond ((memq this-command '(ivy-done
                              ivy-alt-done
                              ivy-immediate-done))
         (if (eq major-mode 'org-agenda-mode)
             (if (null org-agenda-bulk-marked-entries)
                 (let ((hdmarker (or (org-get-at-bol 'org-hd-marker)
                                     (org-agenda-error))))
                   (with-current-buffer (marker-buffer hdmarker)
                     (goto-char hdmarker)
                     (counsel-org--set-tags)))
               (let ((add-tags (copy-sequence counsel-org-tags)))
                 (dolist (m org-agenda-bulk-marked-entries)
                   (with-current-buffer (marker-buffer m)
                     (save-excursion
                       (goto-char m)
                       (setq counsel-org-tags
                             (delete-dups
                              (append (split-string (org-get-tags-string) ":" t)
                                      add-tags)))
                       (counsel-org--set-tags))))))
           (counsel-org--set-tags)))
        ((eq this-command 'ivy-call)
         (with-selected-window (active-minibuffer-window)
           (delete-minibuffer-contents)))))

(defun counsel-org-tag-prompt ()
  "Return prompt for `counsel-org-tag'."
  (format "Tags (%s): "
          (mapconcat #'identity counsel-org-tags ", ")))

(defvar org-setting-tags)
(defvar org-last-tags-completion-table)
(defvar org-tag-persistent-alist)
(defvar org-tag-alist)
(defvar org-complete-tags-always-offer-all-agenda-tags)

(declare-function org-at-heading-p "org")
(declare-function org-back-to-heading "org")
(declare-function org-get-buffer-tags "org")
(declare-function org-global-tags-completion-table "org")
(declare-function org-agenda-files "org")
(declare-function org-agenda-set-tags "org-agenda")
(declare-function org-tags-completion-function "org")

;;;###autoload
(defun counsel-org-tag ()
  "Add or remove tags in `org-mode'."
  (interactive)
  (save-excursion
    (if (eq major-mode 'org-agenda-mode)
        (if org-agenda-bulk-marked-entries
            (setq counsel-org-tags nil)
          (let ((hdmarker (or (org-get-at-bol 'org-hd-marker)
                              (org-agenda-error))))
            (with-current-buffer (marker-buffer hdmarker)
              (goto-char hdmarker)
              (setq counsel-org-tags
                    (split-string (org-get-tags-string) ":" t)))))
      (unless (org-at-heading-p)
        (org-back-to-heading t))
      (setq counsel-org-tags (split-string (org-get-tags-string) ":" t)))
    (let ((org-last-tags-completion-table
           (append (and (or org-complete-tags-always-offer-all-agenda-tags
                            (eq major-mode 'org-agenda-mode))
                        (org-global-tags-completion-table
                         (org-agenda-files)))
                   (unless (boundp 'org-current-tag-alist)
                     org-tag-persistent-alist)
                   (or (if (boundp 'org-current-tag-alist)
                           org-current-tag-alist
                         org-tag-alist)
                       (org-get-buffer-tags)))))
      (ivy-read (counsel-org-tag-prompt)
                (lambda (str _pred _action)
                  (delete-dups
                   (all-completions str #'org-tags-completion-function)))
                :history 'org-tags-history
                :action #'counsel-org-tag-action
                :caller 'counsel-org-tag))))

;;;###autoload
(defun counsel-org-tag-agenda ()
  "Set tags for the current agenda item."
  (interactive)
  (let ((store (symbol-function 'org-set-tags)))
    (unwind-protect
         (progn
           (fset 'org-set-tags
                 (symbol-function 'counsel-org-tag))
           (org-agenda-set-tags nil nil))
      (fset 'org-set-tags store))))

(define-obsolete-variable-alias 'counsel-org-goto-display-tags
    'counsel-org-headline-display-tags "0.10.0")

(defcustom counsel-org-headline-display-tags nil
  "If non-nil, display tags in matched `org-mode' headlines."
  :type 'boolean
  :group 'ivy)

(define-obsolete-variable-alias 'counsel-org-goto-display-todo
    'counsel-org-headline-display-todo "0.10.0")

(defcustom counsel-org-headline-display-todo nil
  "If non-nil, display todo keywords in matched `org-mode' headlines."
  :type 'boolean
  :group 'ivy)

(defcustom counsel-org-headline-display-priority nil
  "If non-nil, display priorities in matched `org-mode' headlines."
  :type 'boolean
  :group 'ivy)

(declare-function org-get-heading "org")
(declare-function org-goto-marker-or-bmk "org")
(declare-function outline-next-heading "outline")

;;;###autoload
(defalias 'counsel-org-goto #'counsel-outline)

;;;###autoload
(defun counsel-org-goto-all ()
  "Go to a different location in any org file."
  (interactive)
  (let (entries)
    (dolist (b (buffer-list))
      (with-current-buffer b
        (when (derived-mode-p 'org-mode)
          (setq entries (nconc entries (counsel-outline-candidates))))))
    (ivy-read "Goto: " entries
              :history 'counsel-org-goto-history
              :action #'counsel-org-goto-action
              :caller 'counsel-org-goto-all)))

(defun counsel-org-goto-action (x)
  "Go to headline in candidate X."
  (org-goto-marker-or-bmk (cdr x)))

(defvar org-version)

(defun counsel--org-get-heading-args ()
  "Return list of arguments for `org-get-heading'.
Try to return the right number of arguments for the current Org
version.  Argument values are based on the
`counsel-org-headline-display-*' user options."
  (nbutlast (mapcar #'not (list counsel-org-headline-display-tags
                                counsel-org-headline-display-todo
                                counsel-org-headline-display-priority))
            (if (if (fboundp 'func-arity)
                    (< (cdr (func-arity #'org-get-heading)) 3)
                  (version< org-version "9.1.1"))
                1 0)))

;;** `counsel-org-file'
(declare-function org-attach-dir "org-attach")
(declare-function org-attach-file-list "org-attach")
(defvar org-attach-directory)

(defun counsel-org-files ()
  "Return list of all files under current Org attachment directories.
Filenames returned are relative to `default-directory'.  For each
attachment directory associated with the current buffer, all
contained files are listed, so the return value could conceivably
include attachments of other Org buffers."
  (require 'org-attach)
  (let* ((ids (let (res)
                (save-excursion
                  (goto-char (point-min))
                  (while (re-search-forward "^:ID:[\t ]+\\(.*\\)$" nil t)
                    (push (match-string-no-properties 1) res))
                  (nreverse res))))
         (files
          (cl-remove-if-not
           #'file-exists-p
           (mapcar (lambda (id)
                     (expand-file-name
                      (concat (substring id 0 2) "/" (substring id 2))
                      org-attach-directory))
                   ids))))
    (cl-mapcan
     (lambda (dir)
       (mapcar (lambda (file)
                 (file-relative-name (expand-file-name file dir)))
               (org-attach-file-list dir)))
     files)))

;;;###autoload
(defun counsel-org-file ()
  "Browse all attachments for current Org file."
  (interactive)
  (ivy-read "file: " (counsel-org-files)
            :action #'counsel-locate-action-dired
            :caller 'counsel-org-file))

;;** `counsel-org-entity'
(defvar org-entities)
(defvar org-entities-user)

;;;###autoload
(defun counsel-org-entity ()
  "Complete Org entities using Ivy."
  (interactive)
  (require 'org)
  (ivy-read "Entity: " (cl-loop for element in (append org-entities org-entities-user)
                          unless (stringp element)
                          collect (cons
                                   (format "%20s | %20s | %20s | %s"
                                           (cl-first element)    ; name
                                           (cl-second element)   ; latex
                                           (cl-fourth element)   ; html
                                           (cl-seventh element)) ; utf-8
                                   element))
            :require-match t
            :action '(1
                      ("u" (lambda (candidate)
                             (insert (cl-seventh (cdr candidate)))) "utf-8")
                      ("o" (lambda (candidate)
                             (insert "\\" (cl-first (cdr candidate)))) "org-entity")
                      ("l" (lambda (candidate)
                             (insert (cl-second (cdr candidate)))) "latex")
                      ("h" (lambda (candidate)
                             (insert (cl-fourth (cdr candidate)))) "html")
                      ("a" (lambda (candidate)
                             (insert (cl-fifth (cdr candidate)))) "ascii")
                      ("L" (lambda (candidate)
                             (insert (cl-sixth (cdr candidate))) "Latin-1")))))

;;** `counsel-org-capture'
(defvar org-capture-templates)
(defvar org-capture-templates-contexts)
(declare-function org-contextualize-keys "org")
(declare-function org-capture-goto-last-stored "org-capture")
(declare-function org-capture-goto-target "org-capture")
(declare-function org-capture-upgrade-templates "org-capture")

;;;###autoload
(defun counsel-org-capture ()
  "Capture something."
  (interactive)
  (require 'org-capture)
  (ivy-read "Capture template: "
            (delq nil
                  (mapcar
                   (lambda (x)
                     (when (> (length x) 2)
                       (format "%-5s %s" (nth 0 x) (nth 1 x))))
                   ;; We build the list of capture templates as in
                   ;; `org-capture-select-template':
                   (or (org-contextualize-keys
                        (org-capture-upgrade-templates org-capture-templates)
                        org-capture-templates-contexts)
                       '(("t" "Task" entry (file+headline "" "Tasks")
                          "* TODO %?\n  %u\n  %a")))))
            :require-match t
            :action (lambda (x)
                      (org-capture nil (car (split-string x))))
            :caller 'counsel-org-capture))

(ivy-set-actions
 'counsel-org-capture
 `(("t" ,(lambda (x)
           (org-capture-goto-target (car (split-string x))))
        "go to target")
   ("l" ,(lambda (_x)
           (org-capture-goto-last-stored))
        "go to last stored")
   ("p" ,(lambda (x)
           (org-capture 0 (car (split-string x))))
        "insert template at point")
   ("c" ,(lambda (_x)
           (customize-variable 'org-capture-templates))
        "customize org-capture-templates")))

;;** `counsel-org-agenda-headlines'
(defvar org-odd-levels-only)
(declare-function org-set-startup-visibility "org")
(declare-function org-show-entry "org")
(declare-function org-map-entries "org")
(declare-function org-heading-components "org")

(defun counsel-org-agenda-headlines-action-goto (headline)
  "Go to the `org-mode' agenda HEADLINE."
  (find-file (nth 1 headline))
  (org-set-startup-visibility)
  (goto-char (nth 2 headline))
  (org-show-entry))

(ivy-set-actions
 'counsel-org-agenda-headlines
 '(("g" counsel-org-agenda-headlines-action-goto "goto headline")))

(defvar counsel-org-agenda-headlines-history nil
  "History for `counsel-org-agenda-headlines'.")

(define-obsolete-variable-alias 'counsel-org-goto-display-style
    'counsel-outline-display-style "0.10.0")
(define-obsolete-variable-alias 'counsel-org-headline-display-style
    'counsel-outline-display-style "0.10.0")

(defcustom counsel-outline-display-style 'path
  "The style used when displaying matched outline headings.

If `headline', the title is displayed with leading stars
indicating the outline level.

If `path', the path hierarchy is displayed.  For each entry the
title is shown.  Entries are separated with
`counsel-outline-path-separator'.

If `title' or any other value, only the title of the heading is
displayed.

For displaying tags and TODO keywords in `org-mode' buffers, see
`counsel-org-headline-display-tags' and
`counsel-org-headline-display-todo', respectively."
  :type '(choice
          (const :tag "Title only" title)
          (const :tag "Headline" headline)
          (const :tag "Path" path))
  :group 'ivy)

(define-obsolete-variable-alias 'counsel-org-goto-separator
    'counsel-outline-path-separator "0.10.0")
(define-obsolete-variable-alias 'counsel-org-headline-path-separator
    'counsel-outline-path-separator "0.10.0")

(defcustom counsel-outline-path-separator "/"
  "String separating path entries in matched outline headings.
This variable has no effect unless
`counsel-outline-display-style' is set to `path'."
  :type 'string
  :group 'ivy)

(declare-function org-get-outline-path "org")

(defun counsel-org-agenda-headlines--candidates ()
  "Return a list of completion candidates for `counsel-org-agenda-headlines'."
  (org-map-entries
   (lambda ()
     (let* ((components (org-heading-components))
            (level (and (eq counsel-outline-display-style 'headline)
                        (make-string
                         (if org-odd-levels-only
                             (nth 1 components)
                           (nth 0 components))
                         ?*)))
            (todo (and counsel-org-headline-display-todo
                       (nth 2 components)))
            (path (and (eq counsel-outline-display-style 'path)
                       (org-get-outline-path)))
            (priority (and counsel-org-headline-display-priority
                           (nth 3 components)))
            (text (nth 4 components))
            (tags (and counsel-org-headline-display-tags
                       (nth 5 components))))
       (list
        (mapconcat
         'identity
         (cl-remove-if 'null
                       (list
                        level
                        todo
                        (and priority (format "[#%c]" priority))
                        (mapconcat 'identity
                                   (append path (list text))
                                   counsel-outline-path-separator)
                        tags))
         " ")
        buffer-file-name
        (point))))
   nil
   'agenda))

;;;###autoload
(defun counsel-org-agenda-headlines ()
  "Choose from headers of `org-mode' files in the agenda."
  (interactive)
  (require 'org)
  (let ((minibuffer-allow-text-properties t))
    (ivy-read "Org headline: "
              (counsel-org-agenda-headlines--candidates)
              :action #'counsel-org-agenda-headlines-action-goto
              :history 'counsel-org-agenda-headlines-history
              :caller 'counsel-org-agenda-headlines)))

;;* Misc. Emacs
;;** `counsel-mark-ring'
(defun counsel-mark-ring ()
  "Browse `mark-ring' interactively.
Obeys `widen-automatically', which see."
  (interactive)
  (let ((cands
         (save-excursion
           (save-restriction
             ;; Widen, both to save `line-number-at-pos' the trouble
             ;; and for `buffer-substring' to work.
             (widen)
             (let ((fmt (format "%%%dd %%s"
                                (length (number-to-string
                                         (line-number-at-pos (point-max)))))))
               (mapcar (lambda (mark)
                         (goto-char (marker-position mark))
                         (let ((linum (line-number-at-pos))
                               (line  (buffer-substring
                                       (line-beginning-position)
                                       (line-end-position))))
                           (cons (format fmt linum line) (point))))
                       (sort (delete-dups (copy-sequence mark-ring)) #'<)))))))
    (if cands
        (ivy-read "Mark: " cands
                  :require-match t
                  :action (lambda (cand)
                            (let ((pos (cdr-safe cand)))
                              (when pos
                                (unless (<= (point-min) pos (point-max))
                                  (if widen-automatically
                                      (widen)
                                    (error "\
Position of selected mark outside accessible part of buffer")))
                                (goto-char pos))))
                  :caller 'counsel-mark-ring)
      (message "Mark ring is empty"))))

;;** `counsel-package'
(defvar package--initialized)
(defvar package-alist)
(defvar package-archive-contents)
(declare-function package-installed-p "package")
(declare-function package-delete "package")
(declare-function package-desc-extras "package")

(defun counsel--package-candidates ()
  "Return completion alist for `counsel-package'."
  (unless package--initialized
    (package-initialize t))
  (unless package-archive-contents
    (package-refresh-contents))
  (sort (mapcar (lambda (entry)
                  (cons (let ((pkg (car entry)))
                          (concat (if (package-installed-p pkg) "-" "+")
                                  (symbol-name pkg)))
                        entry))
                package-archive-contents)
        #'counsel--package-sort))

(defun counsel-package ()
  "Install or delete packages.

Packages not currently installed are prefixed with \"+\", and
selecting one of these will try to install it.
Packages currently installed are prefixed with \"-\", and
selecting one of these will try to delete it.

Additional actions:\\<ivy-minibuffer-map>

  \\[ivy-dispatching-done] d: Describe package
  \\[ivy-dispatching-done] h: Visit package's homepage"
  (interactive)
  (require 'package)
  (ivy-read "Packages (install +pkg or delete -pkg): "
            (counsel--package-candidates)
            :action #'counsel-package-action
            :require-match t
            :caller 'counsel-package))

(cl-pushnew '(counsel-package . "^+ ") ivy-initial-inputs-alist :key #'car)

(defun counsel-package-action (package)
  "Delete or install PACKAGE."
  (setq package (cadr package))
  (if (package-installed-p package)
      (package-delete (cadr (assq package package-alist)))
    (package-install package)))

(defun counsel-package-action-describe (package)
  "Call `describe-package' on PACKAGE."
  (describe-package (cadr package)))

(defun counsel-package-action-homepage (package)
  "Open homepage for PACKAGE in a WWW browser."
  (let ((url (cdr (assq :url (package-desc-extras (nth 2 package))))))
    (if url
        (browse-url url)
      (message "No homepage specified for package `%s'" (nth 1 package)))))

(defun counsel--package-sort (a b)
  "Sort function for `counsel-package' candidates."
  (let* ((a (car a))
         (b (car b))
         (a-inst (= (string-to-char a) ?+))
         (b-inst (= (string-to-char b) ?+)))
    (or (and a-inst (not b-inst))
        (and (eq a-inst b-inst) (string-lessp a b)))))

(ivy-set-actions
 'counsel-package
 '(("d" counsel-package-action-describe "describe package")
   ("h" counsel-package-action-homepage "open package homepage")))

;;** `counsel-tmm'
(defvar tmm-km-list nil)
(declare-function tmm-get-keymap "tmm")
(declare-function tmm--completion-table "tmm")
(declare-function tmm-get-keybind "tmm")

(defun counsel-tmm-prompt (menu)
  "Select and call an item from the MENU keymap."
  (let (out
        choice
        chosen-string)
    (setq tmm-km-list nil)
    (map-keymap (lambda (k v) (tmm-get-keymap (cons k v))) menu)
    (setq tmm-km-list (nreverse tmm-km-list))
    (setq out (ivy-read "Menu bar: " (tmm--completion-table tmm-km-list)
                        :require-match t
                        :sort nil))
    (setq choice (cdr (assoc out tmm-km-list)))
    (setq chosen-string (car choice))
    (setq choice (cdr choice))
    (cond ((keymapp choice)
           (counsel-tmm-prompt choice))
          ((and choice chosen-string)
           (setq last-command-event chosen-string)
           (call-interactively choice)))))

(defvar tmm-table-undef)

;;;###autoload
(defun counsel-tmm ()
  "Text-mode emulation of looking and choosing from a menubar."
  (interactive)
  (require 'tmm)
  (run-hooks 'menu-bar-update-hook)
  (setq tmm-table-undef nil)
  (counsel-tmm-prompt (tmm-get-keybind [menu-bar])))

;;** `counsel-yank-pop'
(defcustom counsel-yank-pop-truncate-radius 2
  "Number of context lines around `counsel-yank-pop' candidates."
  :type 'integer
  :group 'ivy)

(defun counsel--yank-pop-truncate (str)
  "Truncate STR for use in `counsel-yank-pop'."
  (condition-case nil
      (let* ((lines (split-string str "\n" t))
             (n (length lines))
             (re (ivy-re-to-str ivy--old-re))
             (first-match (cl-position-if
                           (lambda (s) (string-match re s))
                           lines))
             (beg (max 0 (- first-match
                            counsel-yank-pop-truncate-radius)))
             (end (min n (+ first-match
                            counsel-yank-pop-truncate-radius
                            1)))
             (seq (cl-subseq lines beg end)))
        (if (null first-match)
            (error "Could not match %s" str)
          (when (> beg 0)
            (setcar seq (concat "[...] " (car seq))))
          (when (< end n)
            (setcar (last seq)
                    (concat (car (last seq)) " [...]")))
          (mapconcat #'identity seq "\n")))
    (error str)))

(defcustom counsel-yank-pop-separator "\n"
  "Separator for the kill ring strings in `counsel-yank-pop'."
  :group 'ivy
  :type 'string)

(make-obsolete-variable
 'counsel-yank-pop-height
 'ivy-height-alist
 "<2018-04-14 Fri>") ;; TODO: Add version tag

(defcustom counsel-yank-pop-height 5
  "The `ivy-height' of `counsel-yank-pop'."
  :group 'ivy
  :type 'integer)

(defun counsel--yank-pop-format-function (cand-pairs)
  "Transform CAND-PAIRS into a string for `counsel-yank-pop'."
  (ivy--format-function-generic
   (lambda (str)
     (mapconcat
      (lambda (s)
        (ivy--add-face s 'ivy-current-match))
      (split-string
       (counsel--yank-pop-truncate str) "\n" t)
      "\n"))
   (lambda (str)
     (counsel--yank-pop-truncate str))
   cand-pairs
   counsel-yank-pop-separator))

(defun counsel--yank-pop-position (s)
  "Return position of S in `kill-ring' relative to last yank."
  (or (cl-position s kill-ring-yank-pointer :test #'equal-including-properties)
      (cl-position s kill-ring-yank-pointer :test #'equal)
      (+ (or (cl-position s kill-ring :test #'equal-including-properties)
             (cl-position s kill-ring :test #'equal))
         (- (length kill-ring-yank-pointer)
            (length kill-ring)))))

(defun counsel-string-non-blank-p (s)
  "Return non-nil if S includes non-blank characters.
Newlines and carriage returns are considered blank."
  (not (string-match-p "\\`[\n\r[:blank:]]*\\'" s)))

(defcustom counsel-yank-pop-filter #'counsel-string-non-blank-p
  "Unary filter function applied to `counsel-yank-pop' candidates.
All elements of `kill-ring' for which this function returns nil
will be destructively removed from `kill-ring' before completion.
All blank strings are deleted from `kill-ring' by default."
  :group 'ivy
  :type '(radio
          (function-item counsel-string-non-blank-p)
          (function-item identity)
          (function :tag "Other")))

(defun counsel--yank-pop-kills ()
  "Return filtered `kill-ring' for `counsel-yank-pop' completion.
Both `kill-ring' and `kill-ring-yank-pointer' may be
destructively modifed to eliminate duplicates under
`equal-including-properties', satisfy `counsel-yank-pop-filter',
and incorporate `interprogram-paste-function'."
  ;; Protect against `kill-ring' and result of
  ;; `interprogram-paste-function' both being nil
  (ignore-errors (current-kill 0))
  ;; Keep things consistent with the rest of Emacs
  (dolist (sym '(kill-ring kill-ring-yank-pointer))
    (set sym (cl-delete-duplicates
              (cl-delete-if-not counsel-yank-pop-filter (symbol-value sym))
              :test #'equal-including-properties :from-end t)))
  kill-ring)

(defun counsel-yank-pop-action (s)
  "Like `yank-pop', but insert the kill corresponding to S.
Signal a `buffer-read-only' error if called from a read-only
buffer position."
  (with-ivy-window
    (barf-if-buffer-read-only)
    (setq last-command 'yank)
    (setq yank-window-start (window-start))
    ;; Avoid unexpected additions to `kill-ring'
    (let (interprogram-paste-function)
      (yank-pop (counsel--yank-pop-position s)))
    (setq ivy-completion-end (point))))

(defun counsel-yank-pop-action-remove (s)
  "Remove all occurrences of S from the kill ring."
  (dolist (sym '(kill-ring kill-ring-yank-pointer))
    (set sym (cl-delete s (symbol-value sym)
                        :test #'equal-including-properties)))
  ;; Update collection and preselect for next `ivy-call'
  (setf (ivy-state-collection ivy-last) kill-ring)
  (setf (ivy-state-preselect ivy-last)
        (nth (min ivy--index (1- (length kill-ring)))
             kill-ring))
  (ivy--reset-state ivy-last))

(defun counsel-yank-pop-action-rotate (s)
  "Rotate the yanking point to S in the kill ring.
See `current-kill' for how this interacts with the window system
selection."
  (let ((i (counsel--yank-pop-position s)))
    ;; Avoid unexpected additions to `kill-ring'
    (let (interprogram-paste-function)
      (setf (ivy-state-preselect ivy-last) (current-kill i)))
    ;; Manually change window system selection because `current-kill' won't
    (when (and (zerop i)
               yank-pop-change-selection
               interprogram-cut-function)
      (funcall interprogram-cut-function (car kill-ring-yank-pointer))))
  (ivy--reset-state ivy-last))

(defcustom counsel-yank-pop-preselect-last nil
  "Whether `counsel-yank-pop' preselects the last kill by default.

The command `counsel-yank-pop' always preselects the same kill
that `yank-pop' would have inserted, given the same prefix
argument.

When `counsel-yank-pop-preselect-last' is nil (the default), the
prefix argument of `counsel-yank-pop' defaults to 1 (as per
`yank-pop'), which causes the next-to-last kill to be
preselected.  Otherwise, the prefix argument defaults to 0, which
results in the most recent kill being preselected."
  :group 'ivy
  :type 'boolean)

;;;###autoload
(defun counsel-yank-pop (&optional arg)
  "Ivy replacement for `yank-pop'.
ARG has the same meaning as in `yank-pop', but its default value
can be controlled with `counsel-yank-pop-preselect-last', which
see.  See also `counsel-yank-pop-filter' for how to filter
candidates.
Note: Duplicate elements of `kill-ring' are always deleted."
  ;; Do not specify `*' to allow browsing `kill-ring' in read-only buffers
  (interactive "P")
  (let ((ivy-format-function #'counsel--yank-pop-format-function)
        (kills (counsel--yank-pop-kills)))
    (unless kills
      (error "Kill ring is empty or blank"))
    (unless (eq last-command 'yank)
      (push-mark))
    (setq ivy-completion-beg (mark t))
    (setq ivy-completion-end (point))
    (ivy-read "kill-ring: " kills
              :require-match t
              :preselect (let (interprogram-paste-function)
                           (current-kill (cond
                                           (arg (prefix-numeric-value arg))
                                           (counsel-yank-pop-preselect-last 0)
                                           (t 1))
                                         t))
              :action #'counsel-yank-pop-action
              :caller 'counsel-yank-pop)))

(add-to-list 'ivy-height-alist '(counsel-yank-pop . 5))

(ivy-set-actions
 'counsel-yank-pop
 '(("d" counsel-yank-pop-action-remove "delete")
   ("r" counsel-yank-pop-action-rotate "rotate")))

;;** `counsel-evil-registers'
(make-obsolete-variable
 'counsel-evil-registers-height
 'ivy-height-alist
 "<2018-04-14 Fri>") ;; TODO: Add version tag

(defcustom counsel-evil-registers-height 5
  "The `ivy-height' of `counsel-evil-registers'."
  :group 'ivy
  :type 'integer)

(defun counsel-evil-registers ()
  "Ivy replacement for `evil-show-registers'."
  (interactive)
  (if (fboundp 'evil-register-list)
      (let ((ivy-format-function #'counsel--yank-pop-format-function))
        (ivy-read "evil-registers: "
                  (cl-loop for (key . val) in (evil-register-list)
                     collect (format "[%c]: %s" key (if (stringp val) val "")))
                  :require-match t
                  :action #'counsel-evil-registers-action
                  :caller 'counsel-evil-registers))
    (user-error "Required feature `evil' not installed.")))

(add-to-list 'ivy-height-alist '(counsel-evil-registers . 5))

(defun counsel-evil-registers-action (s)
  "Paste contents of S, trimming the register part.

S will be of the form \"[register]: content\"."
  (with-ivy-window
    (insert
     (replace-regexp-in-string "\\`\\[.*?\\]: " "" s))))

;;** `counsel-imenu'
(defvar imenu-auto-rescan)
(defvar imenu-auto-rescan-maxout)
(declare-function imenu--subalist-p "imenu")
(declare-function imenu--make-index-alist "imenu")

(defun counsel-imenu-get-candidates-from (alist &optional prefix)
  "Create a list of (key . value) from ALIST.
PREFIX is used to create the key."
  (cl-mapcan (lambda (elm)
               (if (imenu--subalist-p elm)
                   (counsel-imenu-get-candidates-from
                    (cl-loop for (e . v) in (cdr elm) collect
                         (cons e (if (integerp v) (copy-marker v) v)))
                    ;; pass the prefix to next recursive call
                    (concat prefix (if prefix ".") (car elm)))
                 (let ((key (concat
                             (when prefix
                               (concat
                                (propertize prefix 'face 'compilation-info)
                                ": "))
                             (car elm))))
                   (list (cons key
                               ;; create a imenu candidate here
                               (cons key (if (overlayp (cdr elm))
                                             (overlay-start (cdr elm))
                                           (cdr elm))))))))
             alist))

(defvar counsel-imenu-map
  (let ((map (make-sparse-keymap)))
    (define-key map (kbd "C-l") 'ivy-call-and-recenter)
    map))

(defun counsel-imenu-categorize-functions (items)
  "Categorize all the functions of imenu."
  (let ((fns (cl-remove-if #'listp items :key #'cdr)))
    (if fns
        (nconc (cl-remove-if #'nlistp items :key #'cdr)
               `(("Functions" ,@fns)))
      items)))

;;;###autoload
(defun counsel-imenu ()
  "Jump to a buffer position indexed by imenu."
  (interactive)
  (unless (featurep 'imenu)
    (require 'imenu nil t))
  (let* ((imenu-auto-rescan t)
         (imenu-auto-rescan-maxout (if current-prefix-arg
                                       (buffer-size)
                                     imenu-auto-rescan-maxout))
         (items (imenu--make-index-alist t))
         (items (delete (assoc "*Rescan*" items) items))
         (items (counsel-imenu-categorize-functions items)))
    (ivy-read "imenu items: " (counsel-imenu-get-candidates-from items)
              :preselect (thing-at-point 'symbol)
              :require-match t
              :action (lambda (candidate)
                        (with-ivy-window
                          ;; In org-mode, (imenu candidate) will expand child node
                          ;; after jump to the candidate position
                          (imenu (cdr candidate))))
              :keymap counsel-imenu-map
              :caller 'counsel-imenu)))

;;** `counsel-list-processes'
(defun counsel-list-processes-action-delete (x)
  "Delete process X."
  (delete-process x)
  (setf (ivy-state-collection ivy-last)
        (setq ivy--all-candidates
              (delete x ivy--all-candidates))))

(defun counsel-list-processes-action-switch (x)
  "Switch to buffer of process X."
  (let* ((proc (get-process x))
         (buf (and proc (process-buffer proc))))
    (if buf
        (switch-to-buffer buf)
      (message "Process %s doesn't have a buffer" x))))

;;;###autoload
(defun counsel-list-processes ()
  "Offer completion for `process-list'.
The default action deletes the selected process.
An extra action allows to switch to the process buffer."
  (interactive)
  (with-temp-buffer
    (list-processes--refresh))
  (ivy-read "Process: " (mapcar #'process-name (process-list))
            :require-match t
            :action
            '(1
              ("o" counsel-list-processes-action-delete "kill")
              ("s" counsel-list-processes-action-switch "switch"))
            :caller 'counsel-list-processes))

;;** `counsel-ace-link'
(defun counsel-ace-link ()
  "Use Ivy completion for `ace-link'."
  (interactive)
  (let (collection action)
    (cond ((eq major-mode 'Info-mode)
           (setq collection 'ace-link--info-collect)
           (setq action 'ace-link--info-action))
          ((eq major-mode 'help-mode)
           (setq collection 'ace-link--help-collect)
           (setq action 'ace-link--help-action))
          ((eq major-mode 'woman-mode)
           (setq collection 'ace-link--woman-collect)
           (setq action 'ace-link--woman-action))
          ((eq major-mode 'eww-mode)
           (setq collection 'ace-link--eww-collect)
           (setq action 'ace-link--eww-action))
          ((eq major-mode 'compilation-mode)
           (setq collection 'ace-link--eww-collect)
           (setq action 'ace-link--compilation-action))
          ((eq major-mode 'org-mode)
           (setq collection 'ace-link--org-collect)
           (setq action 'ace-link--org-action)))
    (if (null collection)
        (error "%S is not supported" major-mode)
      (ivy-read "Ace-Link: " (funcall collection)
                :action (lambda (x) (funcall action (cdr x)))
                :require-match t
                :caller 'counsel-ace-link))))

;;** `counsel-minibuffer-history'
(make-obsolete
 'counsel-expression-history
 'counsel-minibuffer-history
 "0.10.0 <2017-11-13 Mon>")

(make-obsolete
 'counsel-shell-command-history
 'counsel-minibuffer-history
 "0.10.0 <2017-11-13 Mon>")

;;;###autoload
(defun counsel-expression-history ()
  "Select an element of `read-expression-history'.
And insert it into the minibuffer.  Useful during `eval-expression'."
  (interactive)
  (let ((enable-recursive-minibuffers t))
    (ivy-read "Expression: "
              (delete-dups (copy-sequence read-expression-history))
              :action #'insert
              :caller 'counsel-expression-history)))

;;;###autoload
(defun counsel-shell-command-history ()
  "Browse shell command history."
  (interactive)
  (ivy-read "Command: " shell-command-history
            :action #'insert
            :caller 'counsel-shell-command-history))

;;;###autoload
(defun counsel-minibuffer-history ()
  "Browse minibuffer history."
  (interactive)
  (let ((enable-recursive-minibuffers t))
    (ivy-read "History: "
              (delete-dups (copy-sequence
                            (symbol-value minibuffer-history-variable)))
              :action #'insert
              :caller 'counsel-minibuffer-history)))

;;** `counsel-esh-history'
(defun counsel--browse-history (elements)
  "Use Ivy to navigate through ELEMENTS."
  (setq ivy-completion-beg (point))
  (setq ivy-completion-end (point))
  (ivy-read "Symbol name: "
            (delete-dups
             (when (> (ring-size elements) 0)
               (ring-elements elements)))
            :action #'ivy-completion-in-region-action))

(defvar eshell-history-ring)

;;;###autoload
(defun counsel-esh-history ()
  "Browse Eshell history."
  (interactive)
  (require 'em-hist)
  (counsel--browse-history eshell-history-ring))

(defvar comint-input-ring)

;;;###autoload
(defun counsel-shell-history ()
  "Browse shell history."
  (interactive)
  (require 'comint)
  (counsel--browse-history comint-input-ring))

;;** `counsel-hydra-heads'
(defvar hydra-curr-body-fn)
(declare-function hydra-keyboard-quit "ext:hydra")

(defun counsel-hydra-heads ()
  "Call a head of the current/last hydra."
  (interactive)
  (let* ((base (substring
                (prin1-to-string hydra-curr-body-fn)
                0 -4))
         (heads (eval (intern (concat base "heads"))))
         (keymap (eval (intern (concat base "keymap"))))
         (head-names
          (mapcar (lambda (x)
                    (cons
                     (if (nth 2 x)
                         (format "[%s] %S (%s)" (nth 0 x) (nth 1 x) (nth 2 x))
                       (format "[%s] %S" (nth 0 x) (nth 1 x)))
                     (lookup-key keymap (kbd (nth 0 x)))))
                  heads)))
    (ivy-read "head: " head-names
              :action (lambda (x) (call-interactively (cdr x))))
    (hydra-keyboard-quit)))
;;** `counsel-semantic'
(declare-function semantic-tag-start "semantic/tag")
(declare-function semantic-tag-class "semantic/tag")
(declare-function semantic-tag-name "semantic/tag")
(declare-function semantic-tag-put-attribute "semantic/tag")
(declare-function semantic-tag-get-attribute "semantic/tag")
(declare-function semantic-fetch-tags "semantic")
(declare-function semantic-format-tag-summarize "semantic/format")
(declare-function semantic-active-p "semantic/fw")

(defun counsel-semantic-action (x)
  "Got to semantic TAG."
  (goto-char (semantic-tag-start (cdr x))))

(defvar counsel-semantic-history nil
  "History for `counsel-semantic'.")

(defun counsel-semantic-format-tag (tag)
  "Return a pretty string representation of TAG."
  (let ((depth (or (semantic-tag-get-attribute tag :depth) 0))
        (parent (semantic-tag-get-attribute tag :parent)))
    (concat (make-string (* depth 2) ?\ )
            (if parent
                (concat "(" parent ") ")
              "")
            (semantic-format-tag-summarize tag nil t))))

(defun counsel-flatten-forest (func treep forest)
  "Use FUNC and TREEP to flatten FOREST.
FUNC is applied to each node.
TREEP is used to expand internal nodes."
  (cl-labels ((reducer (forest out depth)
                (dolist (tree forest)
                  (let ((this (cons (funcall func tree depth) out))
                        (leafs (funcall treep tree)))
                    (setq out
                          (if leafs
                              (reducer leafs this (1+ depth))
                            this))))
                out))
    (nreverse (reducer forest nil 0))))

(defun counsel-semantic-tags ()
  "Fetch semantic tags."
  (counsel-flatten-forest
   (lambda (tree depth)
     (semantic-tag-put-attribute tree :depth depth))
   (lambda (tag)
     (when (eq (semantic-tag-class tag) 'type)
       (let ((name (semantic-tag-name tag)))
         (mapcar
          (lambda (x) (semantic-tag-put-attribute x :parent name))
          (semantic-tag-get-attribute tag :members)))))
   (semantic-fetch-tags)))

(defun counsel-semantic ()
  "Jump to a semantic tag in the current buffer."
  (interactive)
  (let ((tags (mapcar
               (lambda (x)
                 (cons
                  (counsel-semantic-format-tag x)
                  x))
               (counsel-semantic-tags))))
    (ivy-read "tag: " tags
              :action #'counsel-semantic-action
              :history 'counsel-semantic-history
              :caller 'counsel-semantic)))

(defun counsel-semantic-or-imenu ()
  (interactive)
  (require 'semantic/fw)
  (if (semantic-active-p)
      (counsel-semantic)
    (counsel-imenu)))

;;** `counsel-outline'
(define-obsolete-variable-alias 'counsel-org-goto-face-style
    'counsel-outline-face-style "0.10.0")

(defcustom counsel-outline-face-style nil
  "Determines how to style outline headings during completion.

If `org', the default faces from `org-mode' are applied,
i.e. `org-level-1' through `org-level-8'.  Note that no cycling
is performed, so headings on levels 9 and higher are not styled.

If `verbatim', the faces used in the buffer are applied.  For
simple headlines in `org-mode' buffers, this is usually the same
as the `org' setting, except that it depends on how much of the
buffer has been completely fontified.  If your buffer exceeds a
certain size, headlines are styled lazily depending on which
parts of the tree are visible.  Headlines which are not yet
styled in the buffer will appear unstyled in the minibuffer as
well.  If your headlines contain parts which are fontified
differently than the headline itself (e.g. TODO keywords, tags,
links) and you want these parts to be styled properly, verbatim
is the way to go; otherwise you are probably better off using the
`org' setting instead.

If `custom', the faces defined in `counsel-outline-custom-faces'
are applied.  Note that no cycling is performed, so if there is
no face defined for a certain level, headlines on that level will
not be styled.

If `nil', no faces are applied to the headlines.

For displaying tags and TODO keywords in `org-mode' buffers, see
`counsel-org-headline-display-tags' and
`counsel-org-headline-display-todo', respectively."
  :type '(choice
          (const :tag "Same as org-mode" org)
          (const :tag "Verbatim" verbatim)
          (const :tag "Custom" custom)
          (const :tag "No style" nil))
  :group 'ivy)

(define-obsolete-variable-alias 'counsel-org-goto-custom-faces
    'counsel-outline-custom-faces "0.10.0")

(defcustom counsel-outline-custom-faces nil
  "List of faces for custom display of outline headings.

Headlines on level N are fontified with the Nth entry of this
list, starting with N = 1.  Headline levels with no corresponding
entry in this list will not be styled.

This variable has no effect unless `counsel-outline-face-style'
is set to `custom'."
  :type '(repeat face)
  :group 'ivy)

(defvar counsel-outline-settings
  '((emacs-lisp-mode
     :outline-regexp ";;[;*]+[\s\t]+"
     :outline-level counsel-outline-level-emacs-lisp)
    (org-mode
     :outline-title counsel-outline-title-org
     :action counsel-org-goto-action
     :history counsel-org-goto-history
     :caller counsel-org-goto)
    (markdown-mode                      ; markdown-mode package
     :outline-title counsel-outline-title-markdown)
    (latex-mode                         ; Built-in mode or AUCTeX package
     :outline-title counsel-outline-title-latex))
  "Alist mapping major modes to their `counsel-outline' settings.

Each entry is a pair (MAJOR-MODE . PLIST).  `counsel-outline'
checks whether an entry exists for the current buffer's
MAJOR-MODE and, if so, loads the settings specified by PLIST
instead of the default settings.  The following settings are
recognized:

- `:outline-regexp' is a regexp to match the beggining of an
  outline heading.  It is only checked at the start of a line and
  so need not start with \"^\".
  Defaults to the value of the variable `outline-regexp'.

- `:outline-level' is a function of no arguments which computes
  the level of an outline heading.  It is called with point at
  the beginning of `outline-regexp' and with the match data
  corresponding to `outline-regexp'.
  Defaults to the value of the variable `outline-level'.

- `:outline-title' is a function of no arguments which returns
  the title of an outline heading.  It is called with point at
  the end of `outline-regexp' and with the match data
  corresponding to `outline-regexp'.
  Defaults to the function `counsel-outline-title'.

- `:action' is a function of one argument, the selected outline
  heading to jump to.  This setting corresponds directly to its
  eponymous `ivy-read' keyword, as used by `counsel-outline', so
  the type of the function's argument depends on the value
  returned by `counsel-outline-candidates'.
  Defaults to the function `counsel-outline-action'.

- `:history' is a history list, usually a symbol representing a
  history list variable.  It corresponds directly to its
  eponymous `ivy-read' keyword, as used by `counsel-outline'.
  Defaults to the symbol `counsel-outline-history'.

- `:caller' is a symbol to uniquely idendify the caller to
  `ivy-read'.  It corresponds directly to its eponymous
  `ivy-read' keyword, as used by `counsel-outline'.
  Defaults to the symbol `counsel-outline'.

- `:display-style' overrides the variable
  `counsel-outline-display-style'.

- `:path-separator' overrides the variable
  `counsel-outline-path-separator'.

- `:face-style' overrides the variable
  `counsel-outline-face-style'.

- `:custom-faces' overrides the variable
  `counsel-outline-custom-faces'.")

(defun counsel-outline-title ()
  "Return title of current outline heading.
Intended as a value for the `:outline-title' setting in
`counsel-outline-settings', which see."
  (buffer-substring (point) (line-end-position)))

(defun counsel-outline-title-org ()
  "Return title of current outline heading.
Like `counsel-outline-title' (which see), but for `org-mode'
buffers."
  (apply #'org-get-heading (counsel--org-get-heading-args)))

(defun counsel-outline-title-markdown ()
  "Return title of current outline heading.
Like `counsel-outline-title' (which see), but for
`markdown-mode' (from the eponymous package) buffers."
  ;; `outline-regexp' is set by `markdown-mode' to match both setext
  ;; (underline) and atx (hash) headings (see
  ;; `markdown-regex-header').
  (or (match-string 1)                  ; setext heading title
      (match-string 5)))                ; atx heading title

(defun counsel-outline-title-latex ()
  "Return title of current outline heading.
Like `counsel-outline-title' (which see), but for `latex-mode'
buffers."
  ;; `outline-regexp' is set by `latex-mode' (see variable
  ;; `latex-section-alist' for the built-in mode or function
  ;; `LaTeX-outline-regexp' for the AUCTeX package) to match section
  ;; macros, in which case we get the section name, as well as
  ;; `\appendix', `\documentclass', `\begin{document}', and
  ;; `\end{document}', in which case we simply return that.
  (if (and (assoc (match-string 1)                             ; Macro name
                  (or (bound-and-true-p LaTeX-section-list)    ; AUCTeX
                      (bound-and-true-p latex-section-alist))) ; Built-in
           (progn
             ;; Point is at end of macro name, skip stars and optional args
             (skip-chars-forward "*")
             (while (looking-at-p "\\[")
               (forward-list))
             ;; First mandatory arg should be section title
             (looking-at-p "{")))
      (buffer-substring (1+ (point)) (1- (progn (forward-list) (point))))
    (buffer-substring (line-beginning-position) (point))))

(defun counsel-outline-level-emacs-lisp ()
  "Return level of current outline heading.
Like `lisp-outline-level', but adapted for the `:outline-level'
setting in `counsel-outline-settings', which see."
  (if (looking-at ";;\\([;*]+\\)")
      (- (match-end 1) (match-beginning 1))
    (funcall outline-level)))

(defvar counsel-outline--preselect 0
  "Index of the presected candidate in `counsel-outline'.")

(defun counsel-outline-candidates (&optional settings)
  "Return an alist of outline heading completion candidates.
Each element is a pair (HEADING . MARKER), where the string
HEADING is located at the position of MARKER.  SETTINGS is a
plist entry from `counsel-outline-settings', which see."
  (let ((bol-regex (concat "^\\(?:"
                           (or (plist-get settings :outline-regexp)
                               outline-regexp)
                           "\\)"))
        (outline-title-fn (or (plist-get settings :outline-title)
                              #'counsel-outline-title))
        (outline-level-fn (or (plist-get settings :outline-level)
                              outline-level))
        (display-style (or (plist-get settings :display-style)
                           counsel-outline-display-style))
        (path-separator (or (plist-get settings :path-separator)
                            counsel-outline-path-separator))
        (face-style (or (plist-get settings :face-style)
                        counsel-outline-face-style))
        (custom-faces (or (plist-get settings :custom-faces)
                          counsel-outline-custom-faces))
        (stack-level 0)
        (orig-point (point))
        cands name level marker stack)
    (save-excursion
      (setq counsel-outline--preselect 0)
      (goto-char (point-min))
      (while (re-search-forward bol-regex nil t)
        (save-excursion
          (setq name (or (save-match-data
                           (funcall outline-title-fn))
                         ""))
          (goto-char (match-beginning 0))
          (setq marker (point-marker))
          (setq level (funcall outline-level-fn))
          (cond ((eq display-style 'path)
                 ;; Update stack.  The empty entry guards against incorrect
                 ;; headline hierarchies, e.g. a level 3 headline
                 ;; immediately following a level 1 entry.
                 (while (<= level stack-level)
                   (pop stack)
                   (cl-decf stack-level))
                 (while (> level stack-level)
                   (push "" stack)
                   (cl-incf stack-level))
                 (setf (car stack)
                       (counsel-outline--add-face
                        name level face-style custom-faces))
                 (setq name (mapconcat #'identity
                                       (reverse stack)
                                       path-separator)))
                (t
                 (when (eq display-style 'headline)
                   (setq name (concat (make-string level ?*) " " name)))
                 (setq name (counsel-outline--add-face
                             name level face-style custom-faces))))
          (push (cons name marker) cands))
        (unless (or (string= name "")
                    (< orig-point marker))
          (cl-incf counsel-outline--preselect))))
    (nreverse cands)))

(defun counsel-outline--add-face (name level &optional face-style custom-faces)
  "Set the `face' property on headline NAME according to LEVEL.
FACE-STYLE and CUSTOM-FACES override `counsel-outline-face-style'
and `counsel-outline-custom-faces', respectively, which determine
the face to apply."
  (let ((face (cl-case (or face-style counsel-outline-face-style)
                (verbatim)
                (custom (nth (1- level)
                             (or custom-faces counsel-outline-custom-faces)))
                (org (format "org-level-%d" level))
                (t 'minibuffer-prompt))))
    (when face
      (put-text-property 0 (length name) 'face face name)))
  name)

(defun counsel-outline-action (x)
  "Go to outline X."
  (goto-char (cdr x)))

;;;###autoload
(defun counsel-outline ()
  "Jump to an outline heading with completion."
  (interactive)
  (let ((settings (cdr (assq major-mode counsel-outline-settings))))
    (ivy-read "Outline: " (counsel-outline-candidates settings)
              :action (or (plist-get settings :action)
                          #'counsel-outline-action)
              :history (or (plist-get settings :history)
                           'counsel-outline-history)
              :preselect (max (1- counsel-outline--preselect) 0)
              :caller (or (plist-get settings :caller)
                          'counsel-outline))))

;;** `counsel-ibuffer'
(defvar counsel-ibuffer--buffer-name nil
  "Name of the buffer to use for `counsel-ibuffer'.")

;;;###autoload
(defun counsel-ibuffer (&optional name)
  "Use ibuffer to switch to another buffer.
NAME specifies the name of the buffer (defaults to \"*Ibuffer*\")."
  (interactive)
  (setq counsel-ibuffer--buffer-name (or name "*Ibuffer*"))
  (ivy-read "Switch to buffer: " (counsel-ibuffer--get-buffers)
            :history 'counsel-ibuffer-history
            :action #'counsel-ibuffer-visit-buffer
            :caller 'counsel-ibuffer))

(declare-function ibuffer-update "ibuffer")
(declare-function ibuffer-current-buffer "ibuffer")
(declare-function ibuffer-forward-line "ibuffer")
(defvar ibuffer-movement-cycle)

(defun counsel-ibuffer--get-buffers ()
  "Return list of buffer-related lines in Ibuffer as strings."
  (let ((oldbuf (get-buffer counsel-ibuffer--buffer-name)))
    (unless oldbuf
      ;; Avoid messing with the user's precious window/frame configuration.
      (save-window-excursion
        (let ((display-buffer-overriding-action
               '(display-buffer-same-window (inhibit-same-window . nil))))
          (ibuffer nil counsel-ibuffer--buffer-name nil t))))
    (with-current-buffer counsel-ibuffer--buffer-name
      (when oldbuf
        ;; Forcibly update possibly stale existing buffer.
        (ibuffer-update nil t))
      (goto-char (point-min))
      (let ((ibuffer-movement-cycle nil)
            entries)
        (while (not (eobp))
          (ibuffer-forward-line 1 t)
          (let ((buf (ibuffer-current-buffer)))
            ;; We are only interested in buffers we can actually visit.
            ;; This filters out headings and other unusable entries.
            (when (buffer-live-p buf)
              (push (cons (buffer-substring-no-properties
                           (line-beginning-position)
                           (line-end-position))
                          buf)
                    entries))))
        (nreverse entries)))))

(defun counsel-ibuffer-visit-buffer (x)
  "Switch to buffer of candidate X."
  (switch-to-buffer (cdr x)))

(defun counsel-ibuffer-visit-buffer-other-window (x)
  "Switch to buffer of candidate X in another window."
  (switch-to-buffer-other-window (cdr x)))

(defun counsel-ibuffer-visit-ibuffer (_)
  "Switch to Ibuffer buffer."
  (switch-to-buffer counsel-ibuffer--buffer-name))

(ivy-set-actions
 'counsel-ibuffer
 '(("j" counsel-ibuffer-visit-buffer-other-window "other window")
   ("v" counsel-ibuffer-visit-ibuffer "switch to Ibuffer")))

;;** `counsel-switch-to-shell-buffer'
(defun counsel--buffers-with-mode (mode)
  "Return names of buffers with MODE as their `major-mode'."
  (let (bufs)
    (dolist (buf (buffer-list))
      (when (eq (buffer-local-value 'major-mode buf) mode)
        (push (buffer-name buf) bufs)))
    (nreverse bufs)))

(declare-function shell-mode "shell")

;;;###autoload
(defun counsel-switch-to-shell-buffer ()
  "Switch to a shell buffer, or create one."
  (interactive)
  (ivy-read "Shell buffer: " (counsel--buffers-with-mode #'shell-mode)
            :action #'counsel--switch-to-shell
            :caller 'counsel-switch-to-shell-buffer))

(defun counsel--switch-to-shell (name)
  "Display shell buffer with NAME and select its window.
Reuse any existing window already displaying the named buffer.
If there is no such buffer, start a new `shell' with NAME."
  (if (get-buffer name)
      (pop-to-buffer name '((display-buffer-reuse-window
                             display-buffer-same-window)
                            (inhibit-same-window . nil)
                            (reusable-frames . visible)))
    (shell name)))

;;** `counsel-unicode-char'
(defvar counsel-unicode-char-history nil
  "History for `counsel-unicode-char'.")

(defun counsel--unicode-names ()
  "Return formatted and sorted list of `ucs-names'.
The result of `ucs-names' is mostly, but not completely, sorted,
so this function ensures lexicographic order."
  (let* (cands
         (table (ucs-names))            ; Either hash map or alist
         (fmt (lambda (name code)       ; Common format function
                (let ((cand (format "%06X %-58s %c" code name code)))
                  (put-text-property 0 1 'code code cand)
                  (push cand cands)))))
    (if (not (hash-table-p table))
        ;; Support `ucs-names' returning an alist in Emacs < 26.
        ;; The result of `ucs-names' comes pre-reversed so no need to repeat.
        (dolist (entry table)
          (funcall fmt (car entry) (cdr entry)))
      (maphash fmt table)
      ;; Reverse to speed up sorting
      (setq cands (nreverse cands)))
    (sort cands #'string-lessp)))

(defvar counsel--unicode-table
  (lazy-completion-table counsel--unicode-table counsel--unicode-names)
  "Lazy completion table for `counsel-unicode-char'.
Candidates comprise `counsel--unicode-names', which see.")

;;;###autoload
(defun counsel-unicode-char (&optional count)
  "Insert COUNT copies of a Unicode character at point.
COUNT defaults to 1."
  (interactive "p")
  (let ((ivy-sort-max-size (expt 256 6)))
    (setq ivy-completion-beg (point))
    (setq ivy-completion-end (point))
    (ivy-read "Unicode name: " counsel--unicode-table
              :history 'counsel-unicode-char-history
              :sort t
              :action (lambda (name)
                        (with-ivy-window
                          (delete-region ivy-completion-beg ivy-completion-end)
                          (setq ivy-completion-beg (point))
                          (insert-char (get-text-property 0 'code name) count)
                          (setq ivy-completion-end (point))))
              :caller 'counsel-unicode-char)))

;;** `counsel-colors'
(defun counsel-colors-action-insert-hex (color)
  "Insert the hexadecimal RGB value of COLOR."
  (insert (get-text-property 0 'hex color)))

(defun counsel-colors-action-kill-hex (color)
  "Kill the hexadecimal RGB value of COLOR."
  (kill-new (get-text-property 0 'hex color)))

;;** `counsel-colors-emacs'
(defvar counsel-colors-emacs-history ()
  "History for `counsel-colors-emacs'.")

(defun counsel-colors--name-to-hex (name)
  "Return hexadecimal RGB value of color with NAME."
  (apply #'color-rgb-to-hex (color-name-to-rgb name)))

(defvar shr-color-visible-luminance-min)
(declare-function shr-color-visible "shr-color")

(defun counsel-colors--formatter (formatter)
  "Turn FORMATTER into format function for `counsel-colors-*'.
Return closure suitable for `ivy-format-function'."
  (require 'shr-color)
  (lambda (colors)
    (ivy--format-function-generic
     (lambda (color)
       (let* ((hex (get-text-property 0 'hex color))
              (shr-color-visible-luminance-min 100)
              (fg (cadr (shr-color-visible hex "black" t))))
         (propertize (funcall formatter color)
                     'face (list :foreground fg :background hex))))
     formatter colors "\n")))

;;;###autoload
(defun counsel-colors-emacs ()
  "Show a list of all supported colors for a particular frame.

You can insert or kill the name or hexadecimal RGB value of the
selected color."
  (interactive)
  (let* ((colors (mapcar (lambda (cell)
                           (let ((name (car cell)))
                             (propertize name
                                         'hex (counsel-colors--name-to-hex name)
                                         'dups (cdr cell))))
                         (list-colors-duplicates)))
         (fmt (format "%%-%ds %%s %%s%%s"
                      (apply #'max 0 (mapcar #'string-width colors))))
         (blank (make-string 10 ?\s))
         (ivy-format-function
          (counsel-colors--formatter
           (lambda (color)
             (let ((fg (list :foreground color)))
               (format fmt color
                       (propertize (get-text-property 0 'hex color) 'face fg)
                       (propertize blank 'face (list :background color))
                       (propertize (mapconcat (lambda (dup)
                                                (concat " " dup))
                                              (get-text-property 0 'dups color)
                                              ",")
                                   'face fg)))))))
    (ivy-read "Emacs color: " colors
              :require-match t
              :history 'counsel-colors-emacs-history
              :action #'insert
              :caller 'counsel-colors-emacs)))

(ivy-set-actions
 'counsel-colors-emacs
 '(("h" counsel-colors-action-insert-hex "insert hexadecimal value")
   ("H" counsel-colors-action-kill-hex "kill hexadecimal value")))

;;** `counsel-colors-web'
(defvar shr-color-html-colors-alist)

(defun counsel-colors--web-alist ()
  "Return list of CSS colours for `counsel-colors-web'."
  (require 'shr-color)
  (let* ((alist (copy-alist shr-color-html-colors-alist))
         (mp  (assoc "MediumPurple"  alist))
         (pvr (assoc "PaleVioletRed" alist))
         (rp  (assoc "RebeccaPurple" alist)))
    ;; Backport GNU Emacs bug#30377
    (when mp (setcdr mp "#9370db"))
    (when pvr (setcdr pvr "#db7093"))
    (unless rp (push (cons "rebeccapurple" "#663399") alist))
    (sort (mapcar (lambda (cell)
                    (propertize (downcase (car cell))
                                'hex (downcase (cdr cell))))
                  alist)
          #'string-lessp)))

(defvar counsel-colors-web-history ()
  "History for `counsel-colors-web'.")

;;;###autoload
(defun counsel-colors-web ()
  "Show a list of all W3C web colors for use in CSS.

You can insert or kill the name or hexadecimal RGB value of the
selected color."
  (interactive)
  (let* ((colors (counsel-colors--web-alist))
         (blank (make-string 10 ?\s))
         (fmt (format "%%-%ds %%s %%s"
                      (apply #'max 0 (mapcar #'string-width colors))))
         (ivy-format-function
          (counsel-colors--formatter
           (lambda (color)
             (let ((hex (get-text-property 0 'hex color)))
               (format fmt color
                       (propertize hex 'face (list :foreground hex))
                       (propertize blank 'face (list :background hex))))))))
    (ivy-read "Web color: " colors
              :require-match t
              :history 'counsel-colors-web-history
              :sort t
              :action #'insert
              :caller 'counsel-colors-web)))

(ivy-set-actions
 'counsel-colors-web
 '(("h" counsel-colors-action-insert-hex "insert hexadecimal value")
   ("H" counsel-colors-action-kill-hex "kill hexadecimal value")))

;;* Misc. OS
;;** `counsel-rhythmbox'
(declare-function dbus-call-method "dbus")
(declare-function dbus-get-property "dbus")

(defun counsel-rhythmbox-play-song (song)
  "Let Rhythmbox play SONG."
  (let ((service "org.gnome.Rhythmbox3")
        (path "/org/mpris/MediaPlayer2")
        (interface "org.mpris.MediaPlayer2.Player"))
    (dbus-call-method :session service path interface
                      "OpenUri" (cdr song))))

(defun counsel-rhythmbox-enqueue-song (song)
  "Let Rhythmbox enqueue SONG."
  (let ((service "org.gnome.Rhythmbox3")
        (path "/org/gnome/Rhythmbox3/PlayQueue")
        (interface "org.gnome.Rhythmbox3.PlayQueue"))
    (dbus-call-method :session service path interface
                      "AddToQueue" (cdr song))))

(defvar counsel-rhythmbox-history nil
  "History for `counsel-rhythmbox'.")

(defvar counsel-rhythmbox-songs nil)

(defun counsel-rhythmbox-current-song ()
  "Return the currently playing song title."
  (ignore-errors
    (let* ((entry (dbus-get-property
                   :session
                   "org.mpris.MediaPlayer2.rhythmbox"
                   "/org/mpris/MediaPlayer2"
                   "org.mpris.MediaPlayer2.Player"
                   "Metadata"))
           (artist (caar (cadr (assoc "xesam:artist" entry))))
           (album (cl-caadr (assoc "xesam:album" entry)))
           (title (cl-caadr (assoc "xesam:title" entry))))
      (format "%s - %s - %s" artist album title))))

;;;###autoload
(defun counsel-rhythmbox ()
  "Choose a song from the Rhythmbox library to play or enqueue."
  (interactive)
  (require 'dbus)
  (unless counsel-rhythmbox-songs
    (let* ((service "org.gnome.Rhythmbox3")
           (path "/org/gnome/UPnP/MediaServer2/Library/all")
           (interface "org.gnome.UPnP.MediaContainer2")
           (nb-songs (dbus-get-property
                      :session service path interface "ChildCount")))
      (if (not nb-songs)
          (error "Couldn't connect to Rhythmbox")
        (setq counsel-rhythmbox-songs
              (mapcar (lambda (x)
                        (cons
                         (format
                          "%s - %s - %s"
                          (cl-caadr (assoc "Artist" x))
                          (cl-caadr (assoc "Album" x))
                          (cl-caadr (assoc "DisplayName" x)))
                         (cl-caaadr (assoc "URLs" x))))
                      (dbus-call-method
                       :session service path interface "ListChildren"
                       0 nb-songs '("*")))))))
  (ivy-read "Rhythmbox: " counsel-rhythmbox-songs
            :history 'counsel-rhythmbox-history
            :preselect (counsel-rhythmbox-current-song)
            :action
            '(1
              ("p" counsel-rhythmbox-play-song "Play song")
              ("e" counsel-rhythmbox-enqueue-song "Enqueue song"))
            :caller 'counsel-rhythmbox))

;;** `counsel-linux-app'
(defcustom counsel-linux-apps-directories
  '("~/.local/share/applications/"
    "~/.guix-profile/share/applications/"
    "/usr/local/share/applications/"
    "/var/lib/flatpak/exports/share/applications/"
    "/usr/share/applications/")
  "Directories in which to search for applications (.desktop files)."
  :group 'ivy
  :type '(repeat directory))

(defcustom counsel-linux-app-format-function #'counsel-linux-app-format-function-default
  "Function to format Linux application names the `counsel-linux-app' menu.
The format function will be passed the application's name, comment, and command
as arguments."
  :group 'ivy
  :type '(choice
          (const :tag "Command : Name - Comment" counsel-linux-app-format-function-default)
          (const :tag "Name - Comment (Command)" counsel-linux-app-format-function-name-first)
          (const :tag "Name - Comment" counsel-linux-app-format-function-name-only)
          (const :tag "Command" counsel-linux-app-format-function-command-only)
          (function :tag "Custom")))

(defvar counsel-linux-apps-faulty nil
  "List of faulty desktop files.")

(defvar counsel--linux-apps-cache nil
  "Cache of desktop files data.")

(defvar counsel--linux-apps-cached-files nil
  "List of cached desktop files.")

(defvar counsel--linux-apps-cache-timestamp nil
  "Time when we last updated the cached application list.")

(defvar counsel--linux-apps-cache-format-function nil
  "The function used to format the cached Linux application menu.")

(defun counsel-linux-app-format-function-default (name comment exec)
  "Default Linux application name formatter.
NAME is the name of the application, COMMENT its comment and EXEC
the command to launch it."
  (format "% -45s: %s%s"
          (propertize exec 'face 'font-lock-builtin-face)
          name
          (if comment
              (concat " - " comment)
            "")))

(defun counsel-linux-app-format-function-name-first (name comment exec)
  "Format Linux application names with the NAME (and COMMENT) first.
EXEC is the command to launch the application."
  (format "%s%s (%s)"
          name
          (if comment
              (concat " - " comment)
            "")
          (propertize exec 'face 'font-lock-builtin-face)))

(defun counsel-linux-app-format-function-name-only (name comment _exec)
  "Format Linux application names with the NAME (and COMMENT) only."
  (format "%s%s"
          name
          (if comment
              (concat " - " comment)
            "")))

(defun counsel-linux-app-format-function-command-only (_name _comment exec)
  "Display only the command EXEC when formatting Linux application names."
  exec)

(defun counsel-linux-apps-list-desktop-files ()
  "Return an alist of all Linux applications.
Each list entry is a pair of (desktop-name . desktop-file).
This function always returns its elements in a stable order."
  (let ((hash (make-hash-table :test #'equal))
        result)
    (dolist (dir counsel-linux-apps-directories)
      (when (file-exists-p dir)
        (let ((dir (file-name-as-directory dir)))
          (dolist (file (directory-files-recursively dir ".*\\.desktop$"))
            (let ((id (subst-char-in-string ?/ ?- (file-relative-name file dir))))
              (unless (gethash id hash)
                (push (cons id file) result)
                (puthash id file hash)))))))
    result))

(defun counsel-linux-apps-parse (desktop-entries-alist)
  "Parse the given alist of Linux desktop entries.
Each entry in DESKTOP-ENTRIES-ALIST is a pair of ((id . file-name)).
Any desktop entries that fail to parse are recorded in
`counsel-linux-apps-faulty'."
  (let (result)
    (setq counsel-linux-apps-faulty nil)
    (dolist (entry desktop-entries-alist result)
      (let ((id (car entry))
            (file (cdr entry)))
        (with-temp-buffer
          (insert-file-contents file)
          (goto-char (point-min))
          (let ((start (re-search-forward "^\\[Desktop Entry\\] *$" nil t))
                (end (re-search-forward "^\\[" nil t))
                name comment exec)
            (catch 'break
              (unless start
                (push file counsel-linux-apps-faulty)
                (message "Warning: File %s has no [Desktop Entry] group" file)
                (throw 'break nil))

              (goto-char start)
              (when (re-search-forward "^\\(Hidden\\|NoDisplay\\) *= *\\(1\\|true\\) *$" end t)
                (throw 'break nil))
              (setq name (match-string 1))

              (goto-char start)
              (unless (re-search-forward "^Type *= *Application *$" end t)
                (throw 'break nil))
              (setq name (match-string 1))

              (goto-char start)
              (unless (re-search-forward "^Name *= *\\(.+\\)$" end t)
                (push file counsel-linux-apps-faulty)
                (message "Warning: File %s has no Name" file)
                (throw 'break nil))
              (setq name (match-string 1))

              (goto-char start)
              (when (re-search-forward "^Comment *= *\\(.+\\)$" end t)
                (setq comment (match-string 1)))

              (goto-char start)
              (unless (re-search-forward "^Exec *= *\\(.+\\)$" end t)
                ;; Don't warn because this can technically be a valid desktop file.
                (throw 'break nil))
              (setq exec (match-string 1))

              (goto-char start)
              (when (re-search-forward "^TryExec *= *\\(.+\\)$" end t)
                (let ((try-exec (match-string 1)))
                  (unless (locate-file try-exec exec-path nil #'file-executable-p)
                    (throw 'break nil))))

              (push
               (cons (funcall counsel-linux-app-format-function name comment exec) id)
               result))))))))

(defun counsel-linux-apps-list ()
  "Return list of all Linux desktop applications."
  (let* ((new-desktop-alist (counsel-linux-apps-list-desktop-files))
         (new-files (mapcar 'cdr new-desktop-alist)))
    (unless (and
             (eq counsel-linux-app-format-function
                 counsel--linux-apps-cache-format-function)
             (equal new-files counsel--linux-apps-cached-files)
             (null (cl-find-if
                    (lambda (file)
                      (time-less-p
                       counsel--linux-apps-cache-timestamp
                       (nth 5 (file-attributes file))))
                    new-files)))
      (setq counsel--linux-apps-cache (counsel-linux-apps-parse new-desktop-alist)
            counsel--linux-apps-cache-format-function counsel-linux-app-format-function
            counsel--linux-apps-cache-timestamp (current-time)
            counsel--linux-apps-cached-files new-files)))
  counsel--linux-apps-cache)


(defun counsel-linux-app-action-default (desktop-shortcut)
  "Launch DESKTOP-SHORTCUT."
  (call-process "gtk-launch" nil 0 nil (cdr desktop-shortcut)))

(defun counsel-linux-app-action-file (desktop-shortcut)
  "Launch DESKTOP-SHORTCUT with a selected file."
  (call-process "gtk-launch" nil 0 nil
                (cdr desktop-shortcut)
                (read-file-name "File: ")))

(defun counsel-linux-app-action-open-desktop (desktop-shortcut)
  "Open DESKTOP-SHORTCUT."
  (let* ((app (cdr desktop-shortcut))
         (file (cdr (assoc app (counsel-linux-apps-list-desktop-files)))))
    (if file
        (find-file file)
      (error "Could not find location of file %s" app))))

(ivy-set-actions
 'counsel-linux-app
 '(("f" counsel-linux-app-action-file "run on a file")
   ("d" counsel-linux-app-action-open-desktop "open desktop file")))

;;;###autoload
(defun counsel-linux-app ()
  "Launch a Linux desktop application, similar to Alt-<F2>."
  (interactive)
  (ivy-read "Run a command: " (counsel-linux-apps-list)
            :action #'counsel-linux-app-action-default
            :caller 'counsel-linux-app))

;;** `counsel-wmctrl'
(defun counsel-wmctrl-action (x)
  "Select the desktop window that corresponds to X."
  (shell-command
   (format "wmctrl -i -a \"%s\"" (cdr x))))

(defvar counsel-wmctrl-ignore '("XdndCollectionWindowImp"
                                "unity-launcher" "unity-panel" "unity-dash"
                                "Hud" "Desktop")
  "List of window titles to ignore for `counsel-wmctrl'.")

(defun counsel-wmctrl ()
  "Select a desktop window using wmctrl."
  (interactive)
  (let* ((cands1 (split-string (shell-command-to-string "wmctrl -l") "\n" t))
         (cands2
          (mapcar (lambda (s)
                    (when (string-match
                           "\\`\\([0-9a-fx]+\\)  \\([0-9]+\\) \\([^ ]+\\) \\(.+\\)\\'"
                           s)
                      (let ((title (match-string 4 s))
                            (id (match-string 1 s)))
                        (unless (member title counsel-wmctrl-ignore)
                          (cons title id)))))
                  cands1)))
    (ivy-read "window: " cands2
              :action #'counsel-wmctrl-action
              :caller 'counsel-wmctrl)))

;;* `counsel-mode'
(defvar counsel-mode-map
  (let ((map (make-sparse-keymap)))
    (dolist (binding
              '((execute-extended-command . counsel-M-x)
                (describe-bindings . counsel-descbinds)
                (describe-function . counsel-describe-function)
                (describe-variable . counsel-describe-variable)
                (apropos-command . counsel-apropos)
                (describe-face . counsel-describe-face)
                (list-faces-display . counsel-faces)
                (find-file . counsel-find-file)
                (find-library . counsel-find-library)
                (imenu . counsel-imenu)
                (load-library . counsel-load-library)
                (load-theme . counsel-load-theme)
                (yank-pop . counsel-yank-pop)
                (info-lookup-symbol . counsel-info-lookup-symbol)
                (pop-to-mark-command . counsel-mark-ring)
                (bookmark-jump . counsel-bookmark)))
      (define-key map (vector 'remap (car binding)) (cdr binding)))
    map)
  "Map for `counsel-mode'.
Remaps built-in functions to counsel replacements.")

(defcustom counsel-mode-override-describe-bindings nil
  "Whether to override `describe-bindings' when `counsel-mode' is active."
  :group 'ivy
  :type 'boolean)

;;;###autoload
(define-minor-mode counsel-mode
  "Toggle Counsel mode on or off.
Turn Counsel mode on if ARG is positive, off otherwise. Counsel
mode remaps built-in emacs functions that have counsel
replacements.

Local bindings (`counsel-mode-map'):
\\{counsel-mode-map}"
  :group 'ivy
  :global t
  :keymap counsel-mode-map
  :lighter " counsel"
  (if counsel-mode
      (progn
        (when (and (fboundp 'advice-add)
                   counsel-mode-override-describe-bindings)
          (advice-add #'describe-bindings :override #'counsel-descbinds))
        (define-key minibuffer-local-map (kbd "C-r")
          'counsel-minibuffer-history))
    (when (fboundp 'advice-remove)
      (advice-remove #'describe-bindings #'counsel-descbinds))))

(provide 'counsel)

;;; counsel.el ends here