about summary refs log blame commit diff
path: root/third_party/git/git-gui/git-gui.sh
blob: 6de74ce639cec90fcf7ba1797825526df675547a (plain) (tree)
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
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
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
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
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































                                                                      

                                         


































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































                                                                                                        
                            





















































































                                                                      
                                   







                                                      
                                      






























































































































































































































































































































































                                                                                              
                           

                                        
                                                     




























































































































































































































































































































































                                                                                                                                

                                                            





















































                                                                                      


                                                   






























                                                                             



                                                   


         


                           





















































































































































































































































                                                                                            
                                          




















































































































































































































                                                                                

                                                                              













































































































































                                                                        








                                                                                      
                                                         


                                                        




































































































































































                                                                                        

                                                   
















































































































































































































































































































                                                                                                           







                                                                          
                                                


                                                























                                                                            
                                                                































































































                                                                      
                           
                   
                     




































































































































                                                                                       
                                               



                                                                     
                                                                   
















































































                                                                         
                                            













































































































































































































































































































































































                                                                                 
#!/bin/sh
# Tcl ignores the next line -*- tcl -*- \
 if test "z$*" = zversion \
 || test "z$*" = z--version; \
 then \
	echo 'git-gui version @@GITGUI_VERSION@@'; \
	exit; \
 fi; \
 argv0=$0; \
 exec wish "$argv0" -- "$@"

set appvers {@@GITGUI_VERSION@@}
set copyright [string map [list (c) \u00a9] {
Copyright (c) 2006-2010 Shawn Pearce, et. al.

This program 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 2 of the License, 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.

You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.}]

######################################################################
##
## Tcl/Tk sanity check

if {[catch {package require Tcl 8.4} err]
 || [catch {package require Tk  8.4} err]
} {
	catch {wm withdraw .}
	tk_messageBox \
		-icon error \
		-type ok \
		-title "git-gui: fatal error" \
		-message $err
	exit 1
}

catch {rename send {}} ; # What an evil concept...

######################################################################
##
## locate our library

if { [info exists ::env(GIT_GUI_LIB_DIR) ] } {
	set oguilib $::env(GIT_GUI_LIB_DIR)
} else {
	set oguilib {@@GITGUI_LIBDIR@@}
}
set oguirel {@@GITGUI_RELATIVE@@}
if {$oguirel eq {1}} {
	set oguilib [file dirname [file normalize $argv0]]
	if {[file tail $oguilib] eq {git-core}} {
		set oguilib [file dirname $oguilib]
	}
	set oguilib [file dirname $oguilib]
	set oguilib [file join $oguilib share git-gui lib]
	set oguimsg [file join $oguilib msgs]
} elseif {[string match @@* $oguirel]} {
	set oguilib [file join [file dirname [file normalize $argv0]] lib]
	set oguimsg [file join [file dirname [file normalize $argv0]] po]
} else {
	set oguimsg [file join $oguilib msgs]
}
unset oguirel

######################################################################
##
## enable verbose loading?

if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} {
	unset _verbose
	rename auto_load real__auto_load
	proc auto_load {name args} {
		puts stderr "auto_load $name"
		return [uplevel 1 real__auto_load $name $args]
	}
	rename source real__source
	proc source {args} {
		puts stderr "source    $args"
		uplevel 1 [linsert $args 0 real__source]
	}
	if {[tk windowingsystem] eq "win32"} { console show }
}

######################################################################
##
## Internationalization (i18n) through msgcat and gettext. See
## http://www.gnu.org/software/gettext/manual/html_node/Tcl.html

package require msgcat

# Check for Windows 7 MUI language pack (missed by msgcat < 1.4.4)
if {[tk windowingsystem] eq "win32"
	&& [package vcompare [package provide msgcat] 1.4.4] < 0
} then {
	proc _mc_update_locale {} {
		set key {HKEY_CURRENT_USER\Control Panel\Desktop}
		if {![catch {
			package require registry
			set uilocale [registry get $key "PreferredUILanguages"]
			msgcat::ConvertLocale [string map {- _} [lindex $uilocale 0]]
		} uilocale]} {
			if {[string length $uilocale] > 0} {
				msgcat::mclocale $uilocale
			}
		}
	}
	_mc_update_locale
}

proc _mc_trim {fmt} {
	set cmk [string first @@ $fmt]
	if {$cmk > 0} {
		return [string range $fmt 0 [expr {$cmk - 1}]]
	}
	return $fmt
}

proc mc {en_fmt args} {
	set fmt [_mc_trim [::msgcat::mc $en_fmt]]
	if {[catch {set msg [eval [list format $fmt] $args]} err]} {
		set msg [eval [list format [_mc_trim $en_fmt]] $args]
	}
	return $msg
}

proc strcat {args} {
	return [join $args {}]
}

::msgcat::mcload $oguimsg
unset oguimsg

######################################################################
##
## On Mac, bring the current Wish process window to front

if {[tk windowingsystem] eq "aqua"} {
	catch {
		exec osascript -e [format {
			tell application "System Events"
				set frontmost of processes whose unix id is %d to true
			end tell
		} [pid]]
	}
}

######################################################################
##
## read only globals

set _appname {Git Gui}
set _gitdir {}
set _gitworktree {}
set _isbare {}
set _gitexec {}
set _githtmldir {}
set _reponame {}
set _iscygwin {}
set _search_path {}
set _shellpath {@@SHELL_PATH@@}

set _trace [lsearch -exact $argv --trace]
if {$_trace >= 0} {
	set argv [lreplace $argv $_trace $_trace]
	set _trace 1
	if {[tk windowingsystem] eq "win32"} { console show }
} else {
	set _trace 0
}

# variable for the last merged branch (useful for a default when deleting
# branches).
set _last_merged_branch {}

proc shellpath {} {
	global _shellpath env
	if {[string match @@* $_shellpath]} {
		if {[info exists env(SHELL)]} {
			return $env(SHELL)
		} else {
			return /bin/sh
		}
	}
	return $_shellpath
}

proc appname {} {
	global _appname
	return $_appname
}

proc gitdir {args} {
	global _gitdir
	if {$args eq {}} {
		return $_gitdir
	}
	return [eval [list file join $_gitdir] $args]
}

proc gitexec {args} {
	global _gitexec
	if {$_gitexec eq {}} {
		if {[catch {set _gitexec [git --exec-path]} err]} {
			error "Git not installed?\n\n$err"
		}
		if {[is_Cygwin]} {
			set _gitexec [exec cygpath \
				--windows \
				--absolute \
				$_gitexec]
		} else {
			set _gitexec [file normalize $_gitexec]
		}
	}
	if {$args eq {}} {
		return $_gitexec
	}
	return [eval [list file join $_gitexec] $args]
}

proc githtmldir {args} {
	global _githtmldir
	if {$_githtmldir eq {}} {
		if {[catch {set _githtmldir [git --html-path]}]} {
			# Git not installed or option not yet supported
			return {}
		}
		if {[is_Cygwin]} {
			set _githtmldir [exec cygpath \
				--windows \
				--absolute \
				$_githtmldir]
		} else {
			set _githtmldir [file normalize $_githtmldir]
		}
	}
	if {$args eq {}} {
		return $_githtmldir
	}
	return [eval [list file join $_githtmldir] $args]
}

proc reponame {} {
	return $::_reponame
}

proc is_MacOSX {} {
	if {[tk windowingsystem] eq {aqua}} {
		return 1
	}
	return 0
}

proc is_Windows {} {
	if {$::tcl_platform(platform) eq {windows}} {
		return 1
	}
	return 0
}

proc is_Cygwin {} {
	global _iscygwin
	if {$_iscygwin eq {}} {
		if {$::tcl_platform(platform) eq {windows}} {
			if {[catch {set p [exec cygpath --windir]} err]} {
				set _iscygwin 0
			} else {
				set _iscygwin 1
				# Handle MSys2 which is only cygwin when MSYSTEM is MSYS.
				if {[info exists ::env(MSYSTEM)] && $::env(MSYSTEM) ne "MSYS"} {
					set _iscygwin 0
				}
			}
		} else {
			set _iscygwin 0
		}
	}
	return $_iscygwin
}

proc is_enabled {option} {
	global enabled_options
	if {[catch {set on $enabled_options($option)}]} {return 0}
	return $on
}

proc enable_option {option} {
	global enabled_options
	set enabled_options($option) 1
}

proc disable_option {option} {
	global enabled_options
	set enabled_options($option) 0
}

######################################################################
##
## config

proc is_many_config {name} {
	switch -glob -- $name {
	gui.recentrepo -
	remote.*.fetch -
	remote.*.push
		{return 1}
	*
		{return 0}
	}
}

proc is_config_true {name} {
	global repo_config
	if {[catch {set v $repo_config($name)}]} {
		return 0
	}
	set v [string tolower $v]
	if {$v eq {} || $v eq {true} || $v eq {1} || $v eq {yes} || $v eq {on}} {
		return 1
	} else {
		return 0
	}
}

proc is_config_false {name} {
	global repo_config
	if {[catch {set v $repo_config($name)}]} {
		return 0
	}
	set v [string tolower $v]
	if {$v eq {false} || $v eq {0} || $v eq {no} || $v eq {off}} {
		return 1
	} else {
		return 0
	}
}

proc get_config {name} {
	global repo_config
	if {[catch {set v $repo_config($name)}]} {
		return {}
	} else {
		return $v
	}
}

proc is_bare {} {
	global _isbare
	global _gitdir
	global _gitworktree

	if {$_isbare eq {}} {
		if {[catch {
			set _bare [git rev-parse --is-bare-repository]
			switch  -- $_bare {
			true { set _isbare 1 }
			false { set _isbare 0}
			default { throw }
			}
		}]} {
			if {[is_config_true core.bare]
				|| ($_gitworktree eq {}
					&& [lindex [file split $_gitdir] end] ne {.git})} {
				set _isbare 1
			} else {
				set _isbare 0
			}
		}
	}
	return $_isbare
}

######################################################################
##
## handy utils

proc _trace_exec {cmd} {
	if {!$::_trace} return
	set d {}
	foreach v $cmd {
		if {$d ne {}} {
			append d { }
		}
		if {[regexp {[ \t\r\n'"$?*]} $v]} {
			set v [sq $v]
		}
		append d $v
	}
	puts stderr $d
}

#'"  fix poor old emacs font-lock mode

proc _git_cmd {name} {
	global _git_cmd_path

	if {[catch {set v $_git_cmd_path($name)}]} {
		switch -- $name {
		  version   -
		--version   -
		--exec-path { return [list $::_git $name] }
		}

		set p [gitexec git-$name$::_search_exe]
		if {[file exists $p]} {
			set v [list $p]
		} elseif {[is_Windows] && [file exists [gitexec git-$name]]} {
			# Try to determine what sort of magic will make
			# git-$name go and do its thing, because native
			# Tcl on Windows doesn't know it.
			#
			set p [gitexec git-$name]
			set f [open $p r]
			set s [gets $f]
			close $f

			switch -glob -- [lindex $s 0] {
			#!*sh     { set i sh     }
			#!*perl   { set i perl   }
			#!*python { set i python }
			default   { error "git-$name is not supported: $s" }
			}

			upvar #0 _$i interp
			if {![info exists interp]} {
				set interp [_which $i]
			}
			if {$interp eq {}} {
				error "git-$name requires $i (not in PATH)"
			}
			set v [concat [list $interp] [lrange $s 1 end] [list $p]]
		} else {
			# Assume it is builtin to git somehow and we
			# aren't actually able to see a file for it.
			#
			set v [list $::_git $name]
		}
		set _git_cmd_path($name) $v
	}
	return $v
}

proc _which {what args} {
	global env _search_exe _search_path

	if {$_search_path eq {}} {
		if {[is_Cygwin] && [regexp {^(/|\.:)} $env(PATH)]} {
			set _search_path [split [exec cygpath \
				--windows \
				--path \
				--absolute \
				$env(PATH)] {;}]
			set _search_exe .exe
		} elseif {[is_Windows]} {
			set gitguidir [file dirname [info script]]
			regsub -all ";" $gitguidir "\\;" gitguidir
			set env(PATH) "$gitguidir;$env(PATH)"
			set _search_path [split $env(PATH) {;}]
			set _search_exe .exe
		} else {
			set _search_path [split $env(PATH) :]
			set _search_exe {}
		}
	}

	if {[is_Windows] && [lsearch -exact $args -script] >= 0} {
		set suffix {}
	} else {
		set suffix $_search_exe
	}

	foreach p $_search_path {
		set p [file join $p $what$suffix]
		if {[file exists $p]} {
			return [file normalize $p]
		}
	}
	return {}
}

# Test a file for a hashbang to identify executable scripts on Windows.
proc is_shellscript {filename} {
	if {![file exists $filename]} {return 0}
	set f [open $filename r]
	fconfigure $f -encoding binary
	set magic [read $f 2]
	close $f
	return [expr {$magic eq "#!"}]
}

# Run a command connected via pipes on stdout.
# This is for use with textconv filters and uses sh -c "..." to allow it to
# contain a command with arguments. On windows we must check for shell
# scripts specifically otherwise just call the filter command.
proc open_cmd_pipe {cmd path} {
	global env
	if {![file executable [shellpath]]} {
		set exe [auto_execok [lindex $cmd 0]]
		if {[is_shellscript [lindex $exe 0]]} {
			set run [linsert [auto_execok sh] end -c "$cmd \"\$0\"" $path]
		} else {
			set run [concat $exe [lrange $cmd 1 end] $path]
		}
	} else {
		set run [list [shellpath] -c "$cmd \"\$0\"" $path]
	}
	return [open |$run r]
}

proc _lappend_nice {cmd_var} {
	global _nice
	upvar $cmd_var cmd

	if {![info exists _nice]} {
		set _nice [_which nice]
		if {[catch {exec $_nice git version}]} {
			set _nice {}
		} elseif {[is_Windows] && [file dirname $_nice] ne [file dirname $::_git]} {
			set _nice {}
		}
	}
	if {$_nice ne {}} {
		lappend cmd $_nice
	}
}

proc git {args} {
	set fd [eval [list git_read] $args]
	fconfigure $fd -translation binary -encoding utf-8
	set result [string trimright [read $fd] "\n"]
	close $fd
	if {$::_trace} {
		puts stderr "< $result"
	}
	return $result
}

proc _open_stdout_stderr {cmd} {
	_trace_exec $cmd
	if {[catch {
			set fd [open [concat [list | ] $cmd] r]
		} err]} {
		if {   [lindex $cmd end] eq {2>@1}
		    && $err eq {can not find channel named "1"}
			} {
			# Older versions of Tcl 8.4 don't have this 2>@1 IO
			# redirect operator.  Fallback to |& cat for those.
			# The command was not actually started, so its safe
			# to try to start it a second time.
			#
			set fd [open [concat \
				[list | ] \
				[lrange $cmd 0 end-1] \
				[list |& cat] \
				] r]
		} else {
			error $err
		}
	}
	fconfigure $fd -eofchar {}
	return $fd
}

proc git_read {args} {
	set opt [list]

	while {1} {
		switch -- [lindex $args 0] {
		--nice {
			_lappend_nice opt
		}

		--stderr {
			lappend args 2>@1
		}

		default {
			break
		}

		}

		set args [lrange $args 1 end]
	}

	set cmdp [_git_cmd [lindex $args 0]]
	set args [lrange $args 1 end]

	return [_open_stdout_stderr [concat $opt $cmdp $args]]
}

proc git_write {args} {
	set opt [list]

	while {1} {
		switch -- [lindex $args 0] {
		--nice {
			_lappend_nice opt
		}

		default {
			break
		}

		}

		set args [lrange $args 1 end]
	}

	set cmdp [_git_cmd [lindex $args 0]]
	set args [lrange $args 1 end]

	_trace_exec [concat $opt $cmdp $args]
	return [open [concat [list | ] $opt $cmdp $args] w]
}

proc githook_read {hook_name args} {
	set pchook [gitdir hooks $hook_name]
	lappend args 2>@1

	# On Windows [file executable] might lie so we need to ask
	# the shell if the hook is executable.  Yes that's annoying.
	#
	if {[is_Windows]} {
		upvar #0 _sh interp
		if {![info exists interp]} {
			set interp [_which sh]
		}
		if {$interp eq {}} {
			error "hook execution requires sh (not in PATH)"
		}

		set scr {if test -x "$1";then exec "$@";fi}
		set sh_c [list $interp -c $scr $interp $pchook]
		return [_open_stdout_stderr [concat $sh_c $args]]
	}

	if {[file executable $pchook]} {
		return [_open_stdout_stderr [concat [list $pchook] $args]]
	}

	return {}
}

proc kill_file_process {fd} {
	set process [pid $fd]

	catch {
		if {[is_Windows]} {
			exec taskkill /pid $process
		} else {
			exec kill $process
		}
	}
}

proc gitattr {path attr default} {
	if {[catch {set r [git check-attr $attr -- $path]}]} {
		set r unspecified
	} else {
		set r [join [lrange [split $r :] 2 end] :]
		regsub {^ } $r {} r
	}
	if {$r eq {unspecified}} {
		return $default
	}
	return $r
}

proc sq {value} {
	regsub -all ' $value "'\\''" value
	return "'$value'"
}

proc load_current_branch {} {
	global current_branch is_detached

	set fd [open [gitdir HEAD] r]
	if {[gets $fd ref] < 1} {
		set ref {}
	}
	close $fd

	set pfx {ref: refs/heads/}
	set len [string length $pfx]
	if {[string equal -length $len $pfx $ref]} {
		# We're on a branch.  It might not exist.  But
		# HEAD looks good enough to be a branch.
		#
		set current_branch [string range $ref $len end]
		set is_detached 0
	} else {
		# Assume this is a detached head.
		#
		set current_branch HEAD
		set is_detached 1
	}
}

auto_load tk_optionMenu
rename tk_optionMenu real__tkOptionMenu
proc tk_optionMenu {w varName args} {
	set m [eval real__tkOptionMenu $w $varName $args]
	$m configure -font font_ui
	$w configure -font font_ui
	return $m
}

proc rmsel_tag {text} {
	$text tag conf sel \
		-background [$text cget -background] \
		-foreground [$text cget -foreground] \
		-borderwidth 0
	$text tag conf in_sel -background lightgray
	bind $text <Motion> break
	return $text
}

wm withdraw .
set root_exists 0
bind . <Visibility> {
	bind . <Visibility> {}
	set root_exists 1
}

if {[is_Windows]} {
	wm iconbitmap . -default $oguilib/git-gui.ico
	set ::tk::AlwaysShowSelection 1
	bind . <Control-F2> {console show}

	# Spoof an X11 display for SSH
	if {![info exists env(DISPLAY)]} {
		set env(DISPLAY) :9999
	}
} else {
	catch {
		image create photo gitlogo -width 16 -height 16

		gitlogo put #33CC33 -to  7  0  9  2
		gitlogo put #33CC33 -to  4  2 12  4
		gitlogo put #33CC33 -to  7  4  9  6
		gitlogo put #CC3333 -to  4  6 12  8
		gitlogo put gray26  -to  4  9  6 10
		gitlogo put gray26  -to  3 10  6 12
		gitlogo put gray26  -to  8  9 13 11
		gitlogo put gray26  -to  8 11 10 12
		gitlogo put gray26  -to 11 11 13 14
		gitlogo put gray26  -to  3 12  5 14
		gitlogo put gray26  -to  5 13
		gitlogo put gray26  -to 10 13
		gitlogo put gray26  -to  4 14 12 15
		gitlogo put gray26  -to  5 15 11 16
		gitlogo redither

		image create photo gitlogo32 -width 32 -height 32
		gitlogo32 copy gitlogo -zoom 2 2

		wm iconphoto . -default gitlogo gitlogo32
	}
}

######################################################################
##
## config defaults

set cursor_ptr arrow
font create font_ui
if {[lsearch -exact [font names] TkDefaultFont] != -1} {
	eval [linsert [font actual TkDefaultFont] 0 font configure font_ui]
	eval [linsert [font actual TkFixedFont] 0 font create font_diff]
} else {
	font create font_diff -family Courier -size 10
	catch {
		label .dummy
		eval font configure font_ui [font actual [.dummy cget -font]]
		destroy .dummy
	}
}

font create font_uiitalic
font create font_uibold
font create font_diffbold
font create font_diffitalic

foreach class {Button Checkbutton Entry Label
		Labelframe Listbox Message
		Radiobutton Spinbox Text} {
	option add *$class.font font_ui
}
if {![is_MacOSX]} {
	option add *Menu.font font_ui
	option add *Entry.borderWidth 1 startupFile
	option add *Entry.relief sunken startupFile
	option add *RadioButton.anchor w startupFile
}
unset class

if {[is_Windows] || [is_MacOSX]} {
	option add *Menu.tearOff 0
}

if {[is_MacOSX]} {
	set M1B M1
	set M1T Cmd
} else {
	set M1B Control
	set M1T Ctrl
}

proc bind_button3 {w cmd} {
	bind $w <Any-Button-3> $cmd
	if {[is_MacOSX]} {
		# Mac OS X sends Button-2 on right click through three-button mouse,
		# or through trackpad right-clicking (two-finger touch + click).
		bind $w <Any-Button-2> $cmd
		bind $w <Control-Button-1> $cmd
	}
}

proc apply_config {} {
	global repo_config font_descs

	foreach option $font_descs {
		set name [lindex $option 0]
		set font [lindex $option 1]
		if {[catch {
			set need_weight 1
			foreach {cn cv} $repo_config(gui.$name) {
				if {$cn eq {-weight}} {
					set need_weight 0
				}
				font configure $font $cn $cv
			}
			if {$need_weight} {
				font configure $font -weight normal
			}
			} err]} {
			error_popup [strcat [mc "Invalid font specified in %s:" "gui.$name"] "\n\n$err"]
		}
		foreach {cn cv} [font configure $font] {
			font configure ${font}bold $cn $cv
			font configure ${font}italic $cn $cv
		}
		font configure ${font}bold -weight bold
		font configure ${font}italic -slant italic
	}

	global use_ttk NS
	set use_ttk 0
	set NS {}
	if {$repo_config(gui.usettk)} {
		set use_ttk [package vsatisfies [package provide Tk] 8.5]
		if {$use_ttk} {
			set NS ttk
			bind [winfo class .] <<ThemeChanged>> [list InitTheme]
			pave_toplevel .
		}
	}
}

set default_config(branch.autosetupmerge) true
set default_config(merge.tool) {}
set default_config(mergetool.keepbackup) true
set default_config(merge.diffstat) true
set default_config(merge.summary) false
set default_config(merge.verbosity) 2
set default_config(user.name) {}
set default_config(user.email) {}

set default_config(gui.encoding) [encoding system]
set default_config(gui.matchtrackingbranch) false
set default_config(gui.textconv) true
set default_config(gui.pruneduringfetch) false
set default_config(gui.trustmtime) false
set default_config(gui.fastcopyblame) false
set default_config(gui.maxrecentrepo) 10
set default_config(gui.copyblamethreshold) 40
set default_config(gui.blamehistoryctx) 7
set default_config(gui.diffcontext) 5
set default_config(gui.diffopts) {}
set default_config(gui.commitmsgwidth) 75
set default_config(gui.newbranchtemplate) {}
set default_config(gui.spellingdictionary) {}
set default_config(gui.fontui) [font configure font_ui]
set default_config(gui.fontdiff) [font configure font_diff]
# TODO: this option should be added to the git-config documentation
set default_config(gui.maxfilesdisplayed) 5000
set default_config(gui.usettk) 1
set default_config(gui.warndetachedcommit) 1
set default_config(gui.tabsize) 8
set font_descs {
	{fontui   font_ui   {mc "Main Font"}}
	{fontdiff font_diff {mc "Diff/Console Font"}}
}
set default_config(gui.stageuntracked) ask
set default_config(gui.displayuntracked) true

######################################################################
##
## find git

set _git  [_which git]
if {$_git eq {}} {
	catch {wm withdraw .}
	tk_messageBox \
		-icon error \
		-type ok \
		-title [mc "git-gui: fatal error"] \
		-message [mc "Cannot find git in PATH."]
	exit 1
}

######################################################################
##
## version check

if {[catch {set _git_version [git --version]} err]} {
	catch {wm withdraw .}
	tk_messageBox \
		-icon error \
		-type ok \
		-title [mc "git-gui: fatal error"] \
		-message "Cannot determine Git version:

$err

[appname] requires Git 1.5.0 or later."
	exit 1
}
if {![regsub {^git version } $_git_version {} _git_version]} {
	catch {wm withdraw .}
	tk_messageBox \
		-icon error \
		-type ok \
		-title [mc "git-gui: fatal error"] \
		-message [strcat [mc "Cannot parse Git version string:"] "\n\n$_git_version"]
	exit 1
}

proc get_trimmed_version {s} {
    set r {}
    foreach x [split $s -._] {
        if {[string is integer -strict $x]} {
            lappend r $x
        } else {
            break
        }
    }
    return [join $r .]
}
set _real_git_version $_git_version
set _git_version [get_trimmed_version $_git_version]

if {![regexp {^[1-9]+(\.[0-9]+)+$} $_git_version]} {
	catch {wm withdraw .}
	if {[tk_messageBox \
		-icon warning \
		-type yesno \
		-default no \
		-title "[appname]: warning" \
		 -message [mc "Git version cannot be determined.

%s claims it is version '%s'.

%s requires at least Git 1.5.0 or later.

Assume '%s' is version 1.5.0?
" $_git $_real_git_version [appname] $_real_git_version]] eq {yes}} {
		set _git_version 1.5.0
	} else {
		exit 1
	}
}
unset _real_git_version

proc git-version {args} {
	global _git_version

	switch [llength $args] {
	0 {
		return $_git_version
	}

	2 {
		set op [lindex $args 0]
		set vr [lindex $args 1]
		set cm [package vcompare $_git_version $vr]
		return [expr $cm $op 0]
	}

	4 {
		set type [lindex $args 0]
		set name [lindex $args 1]
		set parm [lindex $args 2]
		set body [lindex $args 3]

		if {($type ne {proc} && $type ne {method})} {
			error "Invalid arguments to git-version"
		}
		if {[llength $body] < 2 || [lindex $body end-1] ne {default}} {
			error "Last arm of $type $name must be default"
		}

		foreach {op vr cb} [lrange $body 0 end-2] {
			if {[git-version $op $vr]} {
				return [uplevel [list $type $name $parm $cb]]
			}
		}

		return [uplevel [list $type $name $parm [lindex $body end]]]
	}

	default {
		error "git-version >= x"
	}

	}
}

if {[git-version < 1.5]} {
	catch {wm withdraw .}
	tk_messageBox \
		-icon error \
		-type ok \
		-title [mc "git-gui: fatal error"] \
		-message "[appname] requires Git 1.5.0 or later.

You are using [git-version]:

[git --version]"
	exit 1
}

######################################################################
##
## configure our library

set idx [file join $oguilib tclIndex]
if {[catch {set fd [open $idx r]} err]} {
	catch {wm withdraw .}
	tk_messageBox \
		-icon error \
		-type ok \
		-title [mc "git-gui: fatal error"] \
		-message $err
	exit 1
}
if {[gets $fd] eq {# Autogenerated by git-gui Makefile}} {
	set idx [list]
	while {[gets $fd n] >= 0} {
		if {$n ne {} && ![string match #* $n]} {
			lappend idx $n
		}
	}
} else {
	set idx {}
}
close $fd

if {$idx ne {}} {
	set loaded [list]
	foreach p $idx {
		if {[lsearch -exact $loaded $p] >= 0} continue
		source [file join $oguilib $p]
		lappend loaded $p
	}
	unset loaded p
} else {
	set auto_path [concat [list $oguilib] $auto_path]
}
unset -nocomplain idx fd

######################################################################
##
## config file parsing

git-version proc _parse_config {arr_name args} {
	>= 1.5.3 {
		upvar $arr_name arr
		array unset arr
		set buf {}
		catch {
			set fd_rc [eval \
				[list git_read config] \
				$args \
				[list --null --list]]
			fconfigure $fd_rc -translation binary -encoding utf-8
			set buf [read $fd_rc]
			close $fd_rc
		}
		foreach line [split $buf "\0"] {
			if {[regexp {^([^\n]+)\n(.*)$} $line line name value]} {
				if {[is_many_config $name]} {
					lappend arr($name) $value
				} else {
					set arr($name) $value
				}
			} elseif {[regexp {^([^\n]+)$} $line line name]} {
				# no value given, but interpreting them as
				# boolean will be handled as true
				set arr($name) {}
			}
		}
	}
	default {
		upvar $arr_name arr
		array unset arr
		catch {
			set fd_rc [eval [list git_read config --list] $args]
			while {[gets $fd_rc line] >= 0} {
				if {[regexp {^([^=]+)=(.*)$} $line line name value]} {
					if {[is_many_config $name]} {
						lappend arr($name) $value
					} else {
						set arr($name) $value
					}
				} elseif {[regexp {^([^=]+)$} $line line name]} {
					# no value given, but interpreting them as
					# boolean will be handled as true
					set arr($name) {}
				}
			}
			close $fd_rc
		}
	}
}

proc load_config {include_global} {
	global repo_config global_config system_config default_config

	if {$include_global} {
		_parse_config system_config --system
		_parse_config global_config --global
	}
	_parse_config repo_config

	foreach name [array names default_config] {
		if {[catch {set v $system_config($name)}]} {
			set system_config($name) $default_config($name)
		}
	}
	foreach name [array names system_config] {
		if {[catch {set v $global_config($name)}]} {
			set global_config($name) $system_config($name)
		}
		if {[catch {set v $repo_config($name)}]} {
			set repo_config($name) $system_config($name)
		}
	}
}

######################################################################
##
## feature option selection

if {[regexp {^git-(.+)$} [file tail $argv0] _junk subcommand]} {
	unset _junk
} else {
	set subcommand gui
}
if {$subcommand eq {gui.sh}} {
	set subcommand gui
}
if {$subcommand eq {gui} && [llength $argv] > 0} {
	set subcommand [lindex $argv 0]
	set argv [lrange $argv 1 end]
}

enable_option multicommit
enable_option branch
enable_option transport
disable_option bare

switch -- $subcommand {
browser -
blame {
	enable_option bare

	disable_option multicommit
	disable_option branch
	disable_option transport
}
citool {
	enable_option singlecommit
	enable_option retcode

	disable_option multicommit
	disable_option branch
	disable_option transport

	while {[llength $argv] > 0} {
		set a [lindex $argv 0]
		switch -- $a {
		--amend {
			enable_option initialamend
		}
		--nocommit {
			enable_option nocommit
			enable_option nocommitmsg
		}
		--commitmsg {
			disable_option nocommitmsg
		}
		default {
			break
		}
		}

		set argv [lrange $argv 1 end]
	}
}
}

######################################################################
##
## execution environment

set have_tk85 [expr {[package vcompare $tk_version "8.5"] >= 0}]

# Suggest our implementation of askpass, if none is set
if {![info exists env(SSH_ASKPASS)]} {
	set env(SSH_ASKPASS) [gitexec git-gui--askpass]
}

######################################################################
##
## repository setup

set picked 0
if {[catch {
		set _gitdir $env(GIT_DIR)
		set _prefix {}
		}]
	&& [catch {
		# beware that from the .git dir this sets _gitdir to .
		# and _prefix to the empty string
		set _gitdir [git rev-parse --git-dir]
		set _prefix [git rev-parse --show-prefix]
	} err]} {
	load_config 1
	apply_config
	choose_repository::pick
	set picked 1
}

# we expand the _gitdir when it's just a single dot (i.e. when we're being
# run from the .git dir itself) lest the routines to find the worktree
# get confused
if {$_gitdir eq "."} {
	set _gitdir [pwd]
}

if {![file isdirectory $_gitdir] && [is_Cygwin]} {
	catch {set _gitdir [exec cygpath --windows $_gitdir]}
}
if {![file isdirectory $_gitdir]} {
	catch {wm withdraw .}
	error_popup [strcat [mc "Git directory not found:"] "\n\n$_gitdir"]
	exit 1
}
# _gitdir exists, so try loading the config
load_config 0
apply_config

# v1.7.0 introduced --show-toplevel to return the canonical work-tree
if {[package vcompare $_git_version 1.7.0] >= 0} {
	if { [is_Cygwin] } {
		catch {set _gitworktree [exec cygpath --windows [git rev-parse --show-toplevel]]}
	} else {
		set _gitworktree [git rev-parse --show-toplevel]
	}
} else {
	# try to set work tree from environment, core.worktree or use
	# cdup to obtain a relative path to the top of the worktree. If
	# run from the top, the ./ prefix ensures normalize expands pwd.
	if {[catch { set _gitworktree $env(GIT_WORK_TREE) }]} {
		set _gitworktree [get_config core.worktree]
		if {$_gitworktree eq ""} {
			set _gitworktree [file normalize ./[git rev-parse --show-cdup]]
		}
	}
}

if {$_prefix ne {}} {
	if {$_gitworktree eq {}} {
		regsub -all {[^/]+/} $_prefix ../ cdup
	} else {
		set cdup $_gitworktree
	}
	if {[catch {cd $cdup} err]} {
		catch {wm withdraw .}
		error_popup [strcat [mc "Cannot move to top of working directory:"] "\n\n$err"]
		exit 1
	}
	set _gitworktree [pwd]
	unset cdup
} elseif {![is_enabled bare]} {
	if {[is_bare]} {
		catch {wm withdraw .}
		error_popup [strcat [mc "Cannot use bare repository:"] "\n\n$_gitdir"]
		exit 1
	}
	if {$_gitworktree eq {}} {
		set _gitworktree [file dirname $_gitdir]
	}
	if {[catch {cd $_gitworktree} err]} {
		catch {wm withdraw .}
		error_popup [strcat [mc "No working directory"] " $_gitworktree:\n\n$err"]
		exit 1
	}
	set _gitworktree [pwd]
}
set _reponame [file split [file normalize $_gitdir]]
if {[lindex $_reponame end] eq {.git}} {
	set _reponame [lindex $_reponame end-1]
} else {
	set _reponame [lindex $_reponame end]
}

set env(GIT_DIR) $_gitdir
set env(GIT_WORK_TREE) $_gitworktree

######################################################################
##
## global init

set current_diff_path {}
set current_diff_side {}
set diff_actions [list]

set HEAD {}
set PARENT {}
set MERGE_HEAD [list]
set commit_type {}
set empty_tree {}
set current_branch {}
set is_detached 0
set current_diff_path {}
set is_3way_diff 0
set is_submodule_diff 0
set is_conflict_diff 0
set selected_commit_type new
set diff_empty_count 0

set nullid "0000000000000000000000000000000000000000"
set nullid2 "0000000000000000000000000000000000000001"

######################################################################
##
## task management

set rescan_active 0
set diff_active 0
set last_clicked {}

set disable_on_lock [list]
set index_lock_type none

proc lock_index {type} {
	global index_lock_type disable_on_lock

	if {$index_lock_type eq {none}} {
		set index_lock_type $type
		foreach w $disable_on_lock {
			uplevel #0 $w disabled
		}
		return 1
	} elseif {$index_lock_type eq "begin-$type"} {
		set index_lock_type $type
		return 1
	}
	return 0
}

proc unlock_index {} {
	global index_lock_type disable_on_lock

	set index_lock_type none
	foreach w $disable_on_lock {
		uplevel #0 $w normal
	}
}

######################################################################
##
## status

proc repository_state {ctvar hdvar mhvar} {
	global current_branch
	upvar $ctvar ct $hdvar hd $mhvar mh

	set mh [list]

	load_current_branch
	if {[catch {set hd [git rev-parse --verify HEAD]}]} {
		set hd {}
		set ct initial
		return
	}

	set merge_head [gitdir MERGE_HEAD]
	if {[file exists $merge_head]} {
		set ct merge
		set fd_mh [open $merge_head r]
		while {[gets $fd_mh line] >= 0} {
			lappend mh $line
		}
		close $fd_mh
		return
	}

	set ct normal
}

proc PARENT {} {
	global PARENT empty_tree

	set p [lindex $PARENT 0]
	if {$p ne {}} {
		return $p
	}
	if {$empty_tree eq {}} {
		set empty_tree [git mktree << {}]
	}
	return $empty_tree
}

proc force_amend {} {
	global selected_commit_type
	global HEAD PARENT MERGE_HEAD commit_type

	repository_state newType newHEAD newMERGE_HEAD
	set HEAD $newHEAD
	set PARENT $newHEAD
	set MERGE_HEAD $newMERGE_HEAD
	set commit_type $newType

	set selected_commit_type amend
	do_select_commit_type
}

proc rescan {after {honor_trustmtime 1}} {
	global HEAD PARENT MERGE_HEAD commit_type
	global ui_index ui_workdir ui_comm
	global rescan_active file_states
	global repo_config

	if {$rescan_active > 0 || ![lock_index read]} return

	repository_state newType newHEAD newMERGE_HEAD
	if {[string match amend* $commit_type]
		&& $newType eq {normal}
		&& $newHEAD eq $HEAD} {
	} else {
		set HEAD $newHEAD
		set PARENT $newHEAD
		set MERGE_HEAD $newMERGE_HEAD
		set commit_type $newType
	}

	array unset file_states

	if {!$::GITGUI_BCK_exists &&
		(![$ui_comm edit modified]
		|| [string trim [$ui_comm get 0.0 end]] eq {})} {
		if {[string match amend* $commit_type]} {
		} elseif {[load_message GITGUI_MSG utf-8]} {
		} elseif {[run_prepare_commit_msg_hook]} {
		} elseif {[load_message MERGE_MSG]} {
		} elseif {[load_message SQUASH_MSG]} {
		}
		$ui_comm edit reset
		$ui_comm edit modified false
	}

	if {$honor_trustmtime && $repo_config(gui.trustmtime) eq {true}} {
		rescan_stage2 {} $after
	} else {
		set rescan_active 1
		ui_status [mc "Refreshing file status..."]
		set fd_rf [git_read update-index \
			-q \
			--unmerged \
			--ignore-missing \
			--refresh \
			]
		fconfigure $fd_rf -blocking 0 -translation binary
		fileevent $fd_rf readable \
			[list rescan_stage2 $fd_rf $after]
	}
}

if {[is_Cygwin]} {
	set is_git_info_exclude {}
	proc have_info_exclude {} {
		global is_git_info_exclude

		if {$is_git_info_exclude eq {}} {
			if {[catch {exec test -f [gitdir info exclude]}]} {
				set is_git_info_exclude 0
			} else {
				set is_git_info_exclude 1
			}
		}
		return $is_git_info_exclude
	}
} else {
	proc have_info_exclude {} {
		return [file readable [gitdir info exclude]]
	}
}

proc rescan_stage2 {fd after} {
	global rescan_active buf_rdi buf_rdf buf_rlo

	if {$fd ne {}} {
		read $fd
		if {![eof $fd]} return
		close $fd
	}

	if {[package vcompare $::_git_version 1.6.3] >= 0} {
		set ls_others [list --exclude-standard]
	} else {
		set ls_others [list --exclude-per-directory=.gitignore]
		if {[have_info_exclude]} {
			lappend ls_others "--exclude-from=[gitdir info exclude]"
		}
		set user_exclude [get_config core.excludesfile]
		if {$user_exclude ne {} && [file readable $user_exclude]} {
			lappend ls_others "--exclude-from=[file normalize $user_exclude]"
		}
	}

	set buf_rdi {}
	set buf_rdf {}
	set buf_rlo {}

	set rescan_active 2
	ui_status [mc "Scanning for modified files ..."]
	if {[git-version >= "1.7.2"]} {
		set fd_di [git_read diff-index --cached --ignore-submodules=dirty -z [PARENT]]
	} else {
		set fd_di [git_read diff-index --cached -z [PARENT]]
	}
	set fd_df [git_read diff-files -z]

	fconfigure $fd_di -blocking 0 -translation binary -encoding binary
	fconfigure $fd_df -blocking 0 -translation binary -encoding binary

	fileevent $fd_di readable [list read_diff_index $fd_di $after]
	fileevent $fd_df readable [list read_diff_files $fd_df $after]

	if {[is_config_true gui.displayuntracked]} {
		set fd_lo [eval git_read ls-files --others -z $ls_others]
		fconfigure $fd_lo -blocking 0 -translation binary -encoding binary
		fileevent $fd_lo readable [list read_ls_others $fd_lo $after]
		incr rescan_active
	}
}

proc load_message {file {encoding {}}} {
	global ui_comm

	set f [gitdir $file]
	if {[file isfile $f]} {
		if {[catch {set fd [open $f r]}]} {
			return 0
		}
		fconfigure $fd -eofchar {}
		if {$encoding ne {}} {
			fconfigure $fd -encoding $encoding
		}
		set content [string trim [read $fd]]
		close $fd
		regsub -all -line {[ \r\t]+$} $content {} content
		$ui_comm delete 0.0 end
		$ui_comm insert end $content
		return 1
	}
	return 0
}

proc run_prepare_commit_msg_hook {} {
	global pch_error

	# prepare-commit-msg requires PREPARE_COMMIT_MSG exist.  From git-gui
	# it will be .git/MERGE_MSG (merge), .git/SQUASH_MSG (squash), or an
	# empty file but existent file.

	set fd_pcm [open [gitdir PREPARE_COMMIT_MSG] a]

	if {[file isfile [gitdir MERGE_MSG]]} {
		set pcm_source "merge"
		set fd_mm [open [gitdir MERGE_MSG] r]
		fconfigure $fd_mm -encoding utf-8
		puts -nonewline $fd_pcm [read $fd_mm]
		close $fd_mm
	} elseif {[file isfile [gitdir SQUASH_MSG]]} {
		set pcm_source "squash"
		set fd_sm [open [gitdir SQUASH_MSG] r]
		fconfigure $fd_sm -encoding utf-8
		puts -nonewline $fd_pcm [read $fd_sm]
		close $fd_sm
	} else {
		set pcm_source ""
	}

	close $fd_pcm

	set fd_ph [githook_read prepare-commit-msg \
			[gitdir PREPARE_COMMIT_MSG] $pcm_source]
	if {$fd_ph eq {}} {
		catch {file delete [gitdir PREPARE_COMMIT_MSG]}
		return 0;
	}

	ui_status [mc "Calling prepare-commit-msg hook..."]
	set pch_error {}

	fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
	fileevent $fd_ph readable \
		[list prepare_commit_msg_hook_wait $fd_ph]

	return 1;
}

proc prepare_commit_msg_hook_wait {fd_ph} {
	global pch_error

	append pch_error [read $fd_ph]
	fconfigure $fd_ph -blocking 1
	if {[eof $fd_ph]} {
		if {[catch {close $fd_ph}]} {
			ui_status [mc "Commit declined by prepare-commit-msg hook."]
			hook_failed_popup prepare-commit-msg $pch_error
			catch {file delete [gitdir PREPARE_COMMIT_MSG]}
			exit 1
		} else {
			load_message PREPARE_COMMIT_MSG
		}
		set pch_error {}
		catch {file delete [gitdir PREPARE_COMMIT_MSG]}
		return
        }
	fconfigure $fd_ph -blocking 0
	catch {file delete [gitdir PREPARE_COMMIT_MSG]}
}

proc read_diff_index {fd after} {
	global buf_rdi

	append buf_rdi [read $fd]
	set c 0
	set n [string length $buf_rdi]
	while {$c < $n} {
		set z1 [string first "\0" $buf_rdi $c]
		if {$z1 == -1} break
		incr z1
		set z2 [string first "\0" $buf_rdi $z1]
		if {$z2 == -1} break

		incr c
		set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
		set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
		merge_state \
			[encoding convertfrom utf-8 $p] \
			[lindex $i 4]? \
			[list [lindex $i 0] [lindex $i 2]] \
			[list]
		set c $z2
		incr c
	}
	if {$c < $n} {
		set buf_rdi [string range $buf_rdi $c end]
	} else {
		set buf_rdi {}
	}

	rescan_done $fd buf_rdi $after
}

proc read_diff_files {fd after} {
	global buf_rdf

	append buf_rdf [read $fd]
	set c 0
	set n [string length $buf_rdf]
	while {$c < $n} {
		set z1 [string first "\0" $buf_rdf $c]
		if {$z1 == -1} break
		incr z1
		set z2 [string first "\0" $buf_rdf $z1]
		if {$z2 == -1} break

		incr c
		set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
		set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
		merge_state \
			[encoding convertfrom utf-8 $p] \
			?[lindex $i 4] \
			[list] \
			[list [lindex $i 0] [lindex $i 2]]
		set c $z2
		incr c
	}
	if {$c < $n} {
		set buf_rdf [string range $buf_rdf $c end]
	} else {
		set buf_rdf {}
	}

	rescan_done $fd buf_rdf $after
}

proc read_ls_others {fd after} {
	global buf_rlo

	append buf_rlo [read $fd]
	set pck [split $buf_rlo "\0"]
	set buf_rlo [lindex $pck end]
	foreach p [lrange $pck 0 end-1] {
		set p [encoding convertfrom utf-8 $p]
		if {[string index $p end] eq {/}} {
			set p [string range $p 0 end-1]
		}
		merge_state $p ?O
	}
	rescan_done $fd buf_rlo $after
}

proc rescan_done {fd buf after} {
	global rescan_active current_diff_path
	global file_states repo_config
	upvar $buf to_clear

	if {![eof $fd]} return
	set to_clear {}
	close $fd
	if {[incr rescan_active -1] > 0} return

	prune_selection
	unlock_index
	display_all_files
	if {$current_diff_path ne {}} { reshow_diff $after }
	if {$current_diff_path eq {}} { select_first_diff $after }
}

proc prune_selection {} {
	global file_states selected_paths

	foreach path [array names selected_paths] {
		if {[catch {set still_here $file_states($path)}]} {
			unset selected_paths($path)
		}
	}
}

######################################################################
##
## ui helpers

proc mapicon {w state path} {
	global all_icons

	if {[catch {set r $all_icons($state$w)}]} {
		puts "error: no icon for $w state={$state} $path"
		return file_plain
	}
	return $r
}

proc mapdesc {state path} {
	global all_descs

	if {[catch {set r $all_descs($state)}]} {
		puts "error: no desc for state={$state} $path"
		return $state
	}
	return $r
}

proc ui_status {msg} {
	global main_status
	if {[info exists main_status]} {
		$main_status show $msg
	}
}

proc ui_ready {{test {}}} {
	global main_status
	if {[info exists main_status]} {
		$main_status show [mc "Ready."] $test
	}
}

proc escape_path {path} {
	regsub -all {\\} $path "\\\\" path
	regsub -all "\n" $path "\\n" path
	return $path
}

proc short_path {path} {
	return [escape_path [lindex [file split $path] end]]
}

set next_icon_id 0
set null_sha1 [string repeat 0 40]

proc merge_state {path new_state {head_info {}} {index_info {}}} {
	global file_states next_icon_id null_sha1

	set s0 [string index $new_state 0]
	set s1 [string index $new_state 1]

	if {[catch {set info $file_states($path)}]} {
		set state __
		set icon n[incr next_icon_id]
	} else {
		set state [lindex $info 0]
		set icon [lindex $info 1]
		if {$head_info eq {}}  {set head_info  [lindex $info 2]}
		if {$index_info eq {}} {set index_info [lindex $info 3]}
	}

	if     {$s0 eq {?}} {set s0 [string index $state 0]} \
	elseif {$s0 eq {_}} {set s0 _}

	if     {$s1 eq {?}} {set s1 [string index $state 1]} \
	elseif {$s1 eq {_}} {set s1 _}

	if {$s0 eq {A} && $s1 eq {_} && $head_info eq {}} {
		set head_info [list 0 $null_sha1]
	} elseif {$s0 ne {_} && [string index $state 0] eq {_}
		&& $head_info eq {}} {
		set head_info $index_info
	} elseif {$s0 eq {_} && [string index $state 0] ne {_}} {
		set index_info $head_info
		set head_info {}
	}

	set file_states($path) [list $s0$s1 $icon \
		$head_info $index_info \
		]
	return $state
}

proc display_file_helper {w path icon_name old_m new_m} {
	global file_lists

	if {$new_m eq {_}} {
		set lno [lsearch -sorted -exact $file_lists($w) $path]
		if {$lno >= 0} {
			set file_lists($w) [lreplace $file_lists($w) $lno $lno]
			incr lno
			$w conf -state normal
			$w delete $lno.0 [expr {$lno + 1}].0
			$w conf -state disabled
		}
	} elseif {$old_m eq {_} && $new_m ne {_}} {
		lappend file_lists($w) $path
		set file_lists($w) [lsort -unique $file_lists($w)]
		set lno [lsearch -sorted -exact $file_lists($w) $path]
		incr lno
		$w conf -state normal
		$w image create $lno.0 \
			-align center -padx 5 -pady 1 \
			-name $icon_name \
			-image [mapicon $w $new_m $path]
		$w insert $lno.1 "[escape_path $path]\n"
		$w conf -state disabled
	} elseif {$old_m ne $new_m} {
		$w conf -state normal
		$w image conf $icon_name -image [mapicon $w $new_m $path]
		$w conf -state disabled
	}
}

proc display_file {path state} {
	global file_states selected_paths
	global ui_index ui_workdir

	set old_m [merge_state $path $state]
	set s $file_states($path)
	set new_m [lindex $s 0]
	set icon_name [lindex $s 1]

	set o [string index $old_m 0]
	set n [string index $new_m 0]
	if {$o eq {U}} {
		set o _
	}
	if {$n eq {U}} {
		set n _
	}
	display_file_helper	$ui_index $path $icon_name $o $n

	if {[string index $old_m 0] eq {U}} {
		set o U
	} else {
		set o [string index $old_m 1]
	}
	if {[string index $new_m 0] eq {U}} {
		set n U
	} else {
		set n [string index $new_m 1]
	}
	display_file_helper	$ui_workdir $path $icon_name $o $n

	if {$new_m eq {__}} {
		unset file_states($path)
		catch {unset selected_paths($path)}
	}
}

proc display_all_files_helper {w path icon_name m} {
	global file_lists

	lappend file_lists($w) $path
	set lno [expr {[lindex [split [$w index end] .] 0] - 1}]
	$w image create end \
		-align center -padx 5 -pady 1 \
		-name $icon_name \
		-image [mapicon $w $m $path]
	$w insert end "[escape_path $path]\n"
}

set files_warning 0
proc display_all_files {} {
	global ui_index ui_workdir
	global file_states file_lists
	global last_clicked
	global files_warning

	$ui_index conf -state normal
	$ui_workdir conf -state normal

	$ui_index delete 0.0 end
	$ui_workdir delete 0.0 end
	set last_clicked {}

	set file_lists($ui_index) [list]
	set file_lists($ui_workdir) [list]

	set to_display [lsort [array names file_states]]
	set display_limit [get_config gui.maxfilesdisplayed]
	set displayed 0
	foreach path $to_display {
		set s $file_states($path)
		set m [lindex $s 0]
		set icon_name [lindex $s 1]

		if {$displayed > $display_limit && [string index $m 1] eq {O} } {
			if {!$files_warning} {
				# do not repeatedly warn:
				set files_warning 1
				info_popup [mc "Display limit (gui.maxfilesdisplayed = %s) reached, not showing all %s files." \
					$display_limit [llength $to_display]]
			}
			continue
		}

		set s [string index $m 0]
		if {$s ne {U} && $s ne {_}} {
			display_all_files_helper $ui_index $path \
				$icon_name $s
		}

		if {[string index $m 0] eq {U}} {
			set s U
		} else {
			set s [string index $m 1]
		}
		if {$s ne {_}} {
			display_all_files_helper $ui_workdir $path \
				$icon_name $s
			incr displayed
		}
	}

	$ui_index conf -state disabled
	$ui_workdir conf -state disabled
}

######################################################################
##
## icons

set filemask {
#define mask_width 14
#define mask_height 15
static unsigned char mask_bits[] = {
   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f,
   0xfe, 0x1f, 0xfe, 0x1f, 0xfe, 0x1f};
}

image create bitmap file_plain -background white -foreground black -data {
#define plain_width 14
#define plain_height 15
static unsigned char plain_bits[] = {
   0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
   0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10,
   0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
} -maskdata $filemask

image create bitmap file_mod -background white -foreground blue -data {
#define mod_width 14
#define mod_height 15
static unsigned char mod_bits[] = {
   0xfe, 0x01, 0x02, 0x03, 0x7a, 0x05, 0x02, 0x09, 0x7a, 0x1f, 0x02, 0x10,
   0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
} -maskdata $filemask

image create bitmap file_fulltick -background white -foreground "#007000" -data {
#define file_fulltick_width 14
#define file_fulltick_height 15
static unsigned char file_fulltick_bits[] = {
   0xfe, 0x01, 0x02, 0x1a, 0x02, 0x0c, 0x02, 0x0c, 0x02, 0x16, 0x02, 0x16,
   0x02, 0x13, 0x00, 0x13, 0x86, 0x11, 0x8c, 0x11, 0xd8, 0x10, 0xf2, 0x10,
   0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
} -maskdata $filemask

image create bitmap file_question -background white -foreground black -data {
#define file_question_width 14
#define file_question_height 15
static unsigned char file_question_bits[] = {
   0xfe, 0x01, 0x02, 0x02, 0xe2, 0x04, 0xf2, 0x09, 0x1a, 0x1b, 0x0a, 0x13,
   0x82, 0x11, 0xc2, 0x10, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10, 0x62, 0x10,
   0x62, 0x10, 0x02, 0x10, 0xfe, 0x1f};
} -maskdata $filemask

image create bitmap file_removed -background white -foreground red -data {
#define file_removed_width 14
#define file_removed_height 15
static unsigned char file_removed_bits[] = {
   0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x02, 0x10,
   0x1a, 0x16, 0x32, 0x13, 0xe2, 0x11, 0xc2, 0x10, 0xe2, 0x11, 0x32, 0x13,
   0x1a, 0x16, 0x02, 0x10, 0xfe, 0x1f};
} -maskdata $filemask

image create bitmap file_merge -background white -foreground blue -data {
#define file_merge_width 14
#define file_merge_height 15
static unsigned char file_merge_bits[] = {
   0xfe, 0x01, 0x02, 0x03, 0x62, 0x05, 0x62, 0x09, 0x62, 0x1f, 0x62, 0x10,
   0xfa, 0x11, 0xf2, 0x10, 0x62, 0x10, 0x02, 0x10, 0xfa, 0x17, 0x02, 0x10,
   0xfa, 0x17, 0x02, 0x10, 0xfe, 0x1f};
} -maskdata $filemask

image create bitmap file_statechange -background white -foreground green -data {
#define file_statechange_width 14
#define file_statechange_height 15
static unsigned char file_statechange_bits[] = {
   0xfe, 0x01, 0x02, 0x03, 0x02, 0x05, 0x02, 0x09, 0x02, 0x1f, 0x62, 0x10,
   0x62, 0x10, 0xba, 0x11, 0xba, 0x11, 0x62, 0x10, 0x62, 0x10, 0x02, 0x10,
   0x02, 0x10, 0x02, 0x10, 0xfe, 0x1f};
} -maskdata $filemask

set ui_index .vpane.files.index.list
set ui_workdir .vpane.files.workdir.list

set all_icons(_$ui_index)   file_plain
set all_icons(A$ui_index)   file_plain
set all_icons(M$ui_index)   file_fulltick
set all_icons(D$ui_index)   file_removed
set all_icons(U$ui_index)   file_merge
set all_icons(T$ui_index)   file_statechange

set all_icons(_$ui_workdir) file_plain
set all_icons(M$ui_workdir) file_mod
set all_icons(D$ui_workdir) file_question
set all_icons(U$ui_workdir) file_merge
set all_icons(O$ui_workdir) file_plain
set all_icons(T$ui_workdir) file_statechange

set max_status_desc 0
foreach i {
		{__ {mc "Unmodified"}}

		{_M {mc "Modified, not staged"}}
		{M_ {mc "Staged for commit"}}
		{MM {mc "Portions staged for commit"}}
		{MD {mc "Staged for commit, missing"}}

		{_T {mc "File type changed, not staged"}}
		{MT {mc "File type changed, old type staged for commit"}}
		{AT {mc "File type changed, old type staged for commit"}}
		{T_ {mc "File type changed, staged"}}
		{TM {mc "File type change staged, modification not staged"}}
		{TD {mc "File type change staged, file missing"}}

		{_O {mc "Untracked, not staged"}}
		{A_ {mc "Staged for commit"}}
		{AM {mc "Portions staged for commit"}}
		{AD {mc "Staged for commit, missing"}}

		{_D {mc "Missing"}}
		{D_ {mc "Staged for removal"}}
		{DO {mc "Staged for removal, still present"}}

		{_U {mc "Requires merge resolution"}}
		{U_ {mc "Requires merge resolution"}}
		{UU {mc "Requires merge resolution"}}
		{UM {mc "Requires merge resolution"}}
		{UD {mc "Requires merge resolution"}}
		{UT {mc "Requires merge resolution"}}
	} {
	set text [eval [lindex $i 1]]
	if {$max_status_desc < [string length $text]} {
		set max_status_desc [string length $text]
	}
	set all_descs([lindex $i 0]) $text
}
unset i

######################################################################
##
## util

proc scrollbar2many {list mode args} {
	foreach w $list {eval $w $mode $args}
}

proc many2scrollbar {list mode sb top bottom} {
	$sb set $top $bottom
	foreach w $list {$w $mode moveto $top}
}

proc incr_font_size {font {amt 1}} {
	set sz [font configure $font -size]
	incr sz $amt
	font configure $font -size $sz
	font configure ${font}bold -size $sz
	font configure ${font}italic -size $sz
}

######################################################################
##
## ui commands

set starting_gitk_msg [mc "Starting gitk... please wait..."]

proc do_gitk {revs {is_submodule false}} {
	global current_diff_path file_states current_diff_side ui_index
	global _gitdir _gitworktree

	# -- Always start gitk through whatever we were loaded with.  This
	#    lets us bypass using shell process on Windows systems.
	#
	set exe [_which gitk -script]
	set cmd [list [info nameofexecutable] $exe]
	if {$exe eq {}} {
		error_popup [mc "Couldn't find gitk in PATH"]
	} else {
		global env

		set pwd [pwd]

		if {!$is_submodule} {
			if {![is_bare]} {
				cd $_gitworktree
			}
		} else {
			cd $current_diff_path
			if {$revs eq {--}} {
				set s $file_states($current_diff_path)
				set old_sha1 {}
				set new_sha1 {}
				switch -glob -- [lindex $s 0] {
				M_ { set old_sha1 [lindex [lindex $s 2] 1] }
				_M { set old_sha1 [lindex [lindex $s 3] 1] }
				MM {
					if {$current_diff_side eq $ui_index} {
						set old_sha1 [lindex [lindex $s 2] 1]
						set new_sha1 [lindex [lindex $s 3] 1]
					} else {
						set old_sha1 [lindex [lindex $s 3] 1]
					}
				}
				}
				set revs $old_sha1...$new_sha1
			}
			# GIT_DIR and GIT_WORK_TREE for the submodule are not the ones
			# we've been using for the main repository, so unset them.
			# TODO we could make life easier (start up faster?) for gitk
			# by setting these to the appropriate values to allow gitk
			# to skip the heuristics to find their proper value
			unset env(GIT_DIR)
			unset env(GIT_WORK_TREE)
		}
		eval exec $cmd $revs "--" "--" &

		set env(GIT_DIR) $_gitdir
		set env(GIT_WORK_TREE) $_gitworktree
		cd $pwd

		ui_status $::starting_gitk_msg
		after 10000 {
			ui_ready $starting_gitk_msg
		}
	}
}

proc do_git_gui {} {
	global current_diff_path

	# -- Always start git gui through whatever we were loaded with.  This
	#    lets us bypass using shell process on Windows systems.
	#
	set exe [list [_which git]]
	if {$exe eq {}} {
		error_popup [mc "Couldn't find git gui in PATH"]
	} else {
		global env
		global _gitdir _gitworktree

		# see note in do_gitk about unsetting these vars when
		# running tools in a submodule
		unset env(GIT_DIR)
		unset env(GIT_WORK_TREE)

		set pwd [pwd]
		cd $current_diff_path

		eval exec $exe gui &

		set env(GIT_DIR) $_gitdir
		set env(GIT_WORK_TREE) $_gitworktree
		cd $pwd

		ui_status $::starting_gitk_msg
		after 10000 {
			ui_ready $starting_gitk_msg
		}
	}
}

proc do_explore {} {
	global _gitworktree
	set explorer {}
	if {[is_Cygwin] || [is_Windows]} {
		set explorer "explorer.exe"
	} elseif {[is_MacOSX]} {
		set explorer "open"
	} else {
		# freedesktop.org-conforming system is our best shot
		set explorer "xdg-open"
	}
	eval exec $explorer [list [file nativename $_gitworktree]] &
}

set is_quitting 0
set ret_code    1

proc terminate_me {win} {
	global ret_code
	if {$win ne {.}} return
	exit $ret_code
}

proc do_quit {{rc {1}}} {
	global ui_comm is_quitting repo_config commit_type
	global GITGUI_BCK_exists GITGUI_BCK_i
	global ui_comm_spell
	global ret_code use_ttk

	if {$is_quitting} return
	set is_quitting 1

	if {[winfo exists $ui_comm]} {
		# -- Stash our current commit buffer.
		#
		set save [gitdir GITGUI_MSG]
		if {$GITGUI_BCK_exists && ![$ui_comm edit modified]} {
			file rename -force [gitdir GITGUI_BCK] $save
			set GITGUI_BCK_exists 0
		} else {
			set msg [string trim [$ui_comm get 0.0 end]]
			regsub -all -line {[ \r\t]+$} $msg {} msg
			if {(![string match amend* $commit_type]
				|| [$ui_comm edit modified])
				&& $msg ne {}} {
				catch {
					set fd [open $save w]
					fconfigure $fd -encoding utf-8
					puts -nonewline $fd $msg
					close $fd
				}
			} else {
				catch {file delete $save}
			}
		}

		# -- Cancel our spellchecker if its running.
		#
		if {[info exists ui_comm_spell]} {
			$ui_comm_spell stop
		}

		# -- Remove our editor backup, its not needed.
		#
		after cancel $GITGUI_BCK_i
		if {$GITGUI_BCK_exists} {
			catch {file delete [gitdir GITGUI_BCK]}
		}

		# -- Stash our current window geometry into this repository.
		#
		set cfg_wmstate [wm state .]
		if {[catch {set rc_wmstate $repo_config(gui.wmstate)}]} {
			set rc_wmstate {}
		}
		if {$cfg_wmstate ne $rc_wmstate} {
			catch {git config gui.wmstate $cfg_wmstate}
		}
		if {$cfg_wmstate eq {zoomed}} {
			# on Windows wm geometry will lie about window
			# position (but not size) when window is zoomed
			# restore the window before querying wm geometry
			wm state . normal
		}
		set cfg_geometry [list]
		lappend cfg_geometry [wm geometry .]
		if {$use_ttk} {
			lappend cfg_geometry [.vpane sashpos 0]
			lappend cfg_geometry [.vpane.files sashpos 0]
		} else {
			lappend cfg_geometry [lindex [.vpane sash coord 0] 0]
			lappend cfg_geometry [lindex [.vpane.files sash coord 0] 1]
		}
		if {[catch {set rc_geometry $repo_config(gui.geometry)}]} {
			set rc_geometry {}
		}
		if {$cfg_geometry ne $rc_geometry} {
			catch {git config gui.geometry $cfg_geometry}
		}
	}

	set ret_code $rc

	# Briefly enable send again, working around Tk bug
	# http://sourceforge.net/tracker/?func=detail&atid=112997&aid=1821174&group_id=12997
	tk appname [appname]

	destroy .
}

proc do_rescan {} {
	rescan ui_ready
}

proc ui_do_rescan {} {
	rescan {force_first_diff ui_ready}
}

proc do_commit {} {
	commit_tree
}

proc next_diff {{after {}}} {
	global next_diff_p next_diff_w next_diff_i
	show_diff $next_diff_p $next_diff_w {} {} $after
}

proc find_anchor_pos {lst name} {
	set lid [lsearch -sorted -exact $lst $name]

	if {$lid == -1} {
		set lid 0
		foreach lname $lst {
			if {$lname >= $name} break
			incr lid
		}
	}

	return $lid
}

proc find_file_from {flist idx delta path mmask} {
	global file_states

	set len [llength $flist]
	while {$idx >= 0 && $idx < $len} {
		set name [lindex $flist $idx]

		if {$name ne $path && [info exists file_states($name)]} {
			set state [lindex $file_states($name) 0]

			if {$mmask eq {} || [regexp $mmask $state]} {
				return $idx
			}
		}

		incr idx $delta
	}

	return {}
}

proc find_next_diff {w path {lno {}} {mmask {}}} {
	global next_diff_p next_diff_w next_diff_i
	global file_lists ui_index ui_workdir

	set flist $file_lists($w)
	if {$lno eq {}} {
		set lno [find_anchor_pos $flist $path]
	} else {
		incr lno -1
	}

	if {$mmask ne {} && ![regexp {(^\^)|(\$$)} $mmask]} {
		if {$w eq $ui_index} {
			set mmask "^$mmask"
		} else {
			set mmask "$mmask\$"
		}
	}

	set idx [find_file_from $flist $lno 1 $path $mmask]
	if {$idx eq {}} {
		incr lno -1
		set idx [find_file_from $flist $lno -1 $path $mmask]
	}

	if {$idx ne {}} {
		set next_diff_w $w
		set next_diff_p [lindex $flist $idx]
		set next_diff_i [expr {$idx+1}]
		return 1
	} else {
		return 0
	}
}

proc next_diff_after_action {w path {lno {}} {mmask {}}} {
	global current_diff_path

	if {$path ne $current_diff_path} {
		return {}
	} elseif {[find_next_diff $w $path $lno $mmask]} {
		return {next_diff;}
	} else {
		return {reshow_diff;}
	}
}

proc select_first_diff {after} {
	global ui_workdir

	if {[find_next_diff $ui_workdir {} 1 {^_?U}] ||
	    [find_next_diff $ui_workdir {} 1 {[^O]$}]} {
		next_diff $after
	} else {
		uplevel #0 $after
	}
}

proc force_first_diff {after} {
	global ui_workdir current_diff_path file_states

	if {[info exists file_states($current_diff_path)]} {
		set state [lindex $file_states($current_diff_path) 0]
	} else {
		set state {OO}
	}

	set reselect 0
	if {[string first {U} $state] >= 0} {
		# Already a conflict, do nothing
	} elseif {[find_next_diff $ui_workdir $current_diff_path {} {^_?U}]} {
		set reselect 1
	} elseif {[string index $state 1] ne {O}} {
		# Already a diff & no conflicts, do nothing
	} elseif {[find_next_diff $ui_workdir $current_diff_path {} {[^O]$}]} {
		set reselect 1
	}

	if {$reselect} {
		next_diff $after
	} else {
		uplevel #0 $after
	}
}

proc toggle_or_diff {mode w args} {
	global file_states file_lists current_diff_path ui_index ui_workdir
	global last_clicked selected_paths

	if {$mode eq "click"} {
		foreach {x y} $args break
		set pos [split [$w index @$x,$y] .]
		foreach {lno col} $pos break
	} else {
		if {$mode eq "toggle"} {
			if {$w eq $ui_workdir} {
				do_add_selection
				set last_clicked {}
				return
			}
			if {$w eq $ui_index} {
				do_unstage_selection
				set last_clicked {}
				return
			}
		}

		if {$last_clicked ne {}} {
			set lno [lindex $last_clicked 1]
		} else {
			if {![info exists file_lists]
				|| ![info exists file_lists($w)]
				|| [llength $file_lists($w)] == 0} {
				set last_clicked {}
				return
			}
			set lno [expr {int([lindex [$w tag ranges in_diff] 0])}]
		}
		if {$mode eq "toggle"} {
			set col 0; set y 2
		} else {
			incr lno [expr {$mode eq "up" ? -1 : 1}]
			set col 1
		}
	}

	if {![info exists file_lists]
		|| ![info exists file_lists($w)]
		|| [llength $file_lists($w)] < $lno - 1} {
		set path {}
	} else {
		set path [lindex $file_lists($w) [expr {$lno - 1}]]
	}
	if {$path eq {}} {
		set last_clicked {}
		return
	}

	set last_clicked [list $w $lno]
	focus $w
	array unset selected_paths
	$ui_index tag remove in_sel 0.0 end
	$ui_workdir tag remove in_sel 0.0 end

	# Determine the state of the file
	if {[info exists file_states($path)]} {
		set state [lindex $file_states($path) 0]
	} else {
		set state {__}
	}

	# Restage the file, or simply show the diff
	if {$col == 0 && $y > 1} {
		# Conflicts need special handling
		if {[string first {U} $state] >= 0} {
			# $w must always be $ui_workdir, but...
			if {$w ne $ui_workdir} { set lno {} }
			merge_stage_workdir $path $lno
			return
		}

		if {[string index $state 1] eq {O}} {
			set mmask {}
		} else {
			set mmask {[^O]}
		}

		set after [next_diff_after_action $w $path $lno $mmask]

		if {$w eq $ui_index} {
			update_indexinfo \
				"Unstaging [short_path $path] from commit" \
				[list $path] \
				[concat $after [list ui_ready]]
		} elseif {$w eq $ui_workdir} {
			update_index \
				"Adding [short_path $path]" \
				[list $path] \
				[concat $after [list ui_ready]]
		}
	} else {
		set selected_paths($path) 1
		show_diff $path $w $lno
	}
}

proc add_one_to_selection {w x y} {
	global file_lists last_clicked selected_paths

	set lno [lindex [split [$w index @$x,$y] .] 0]
	set path [lindex $file_lists($w) [expr {$lno - 1}]]
	if {$path eq {}} {
		set last_clicked {}
		return
	}

	if {$last_clicked ne {}
		&& [lindex $last_clicked 0] ne $w} {
		array unset selected_paths
		[lindex $last_clicked 0] tag remove in_sel 0.0 end
	}

	set last_clicked [list $w $lno]
	if {[catch {set in_sel $selected_paths($path)}]} {
		set in_sel 0
	}
	if {$in_sel} {
		unset selected_paths($path)
		$w tag remove in_sel $lno.0 [expr {$lno + 1}].0
	} else {
		set selected_paths($path) 1
		$w tag add in_sel $lno.0 [expr {$lno + 1}].0
	}
}

proc add_range_to_selection {w x y} {
	global file_lists last_clicked selected_paths

	if {[lindex $last_clicked 0] ne $w} {
		toggle_or_diff click $w $x $y
		return
	}

	set lno [lindex [split [$w index @$x,$y] .] 0]
	set lc [lindex $last_clicked 1]
	if {$lc < $lno} {
		set begin $lc
		set end $lno
	} else {
		set begin $lno
		set end $lc
	}

	foreach path [lrange $file_lists($w) \
		[expr {$begin - 1}] \
		[expr {$end - 1}]] {
		set selected_paths($path) 1
	}
	$w tag add in_sel $begin.0 [expr {$end + 1}].0
}

proc show_more_context {} {
	global repo_config
	if {$repo_config(gui.diffcontext) < 99} {
		incr repo_config(gui.diffcontext)
		reshow_diff
	}
}

proc show_less_context {} {
	global repo_config
	if {$repo_config(gui.diffcontext) > 1} {
		incr repo_config(gui.diffcontext) -1
		reshow_diff
	}
}

######################################################################
##
## ui construction

set ui_comm {}

# -- Menu Bar
#
menu .mbar -tearoff 0
if {[is_MacOSX]} {
	# -- Apple Menu (Mac OS X only)
	#
	.mbar add cascade -label Apple -menu .mbar.apple
	menu .mbar.apple
}
.mbar add cascade -label [mc Repository] -menu .mbar.repository
.mbar add cascade -label [mc Edit] -menu .mbar.edit
if {[is_enabled branch]} {
	.mbar add cascade -label [mc Branch] -menu .mbar.branch
}
if {[is_enabled multicommit] || [is_enabled singlecommit]} {
	.mbar add cascade -label [mc Commit@@noun] -menu .mbar.commit
}
if {[is_enabled transport]} {
	.mbar add cascade -label [mc Merge] -menu .mbar.merge
	.mbar add cascade -label [mc Remote] -menu .mbar.remote
}
if {[is_enabled multicommit] || [is_enabled singlecommit]} {
	.mbar add cascade -label [mc Tools] -menu .mbar.tools
}

# -- Repository Menu
#
menu .mbar.repository

if {![is_bare]} {
	.mbar.repository add command \
		-label [mc "Explore Working Copy"] \
		-command {do_explore}
}

if {[is_Windows]} {
	.mbar.repository add command \
		-label [mc "Git Bash"] \
		-command {eval exec [auto_execok start] \
					  [list "Git Bash" bash --login -l &]}
}

if {[is_Windows] || ![is_bare]} {
	.mbar.repository add separator
}

.mbar.repository add command \
	-label [mc "Browse Current Branch's Files"] \
	-command {browser::new $current_branch}
set ui_browse_current [.mbar.repository index last]
.mbar.repository add command \
	-label [mc "Browse Branch Files..."] \
	-command browser_open::dialog
.mbar.repository add separator

.mbar.repository add command \
	-label [mc "Visualize Current Branch's History"] \
	-command {do_gitk $current_branch}
set ui_visualize_current [.mbar.repository index last]
.mbar.repository add command \
	-label [mc "Visualize All Branch History"] \
	-command {do_gitk --all}
.mbar.repository add separator

proc current_branch_write {args} {
	global current_branch
	.mbar.repository entryconf $::ui_browse_current \
		-label [mc "Browse %s's Files" $current_branch]
	.mbar.repository entryconf $::ui_visualize_current \
		-label [mc "Visualize %s's History" $current_branch]
}
trace add variable current_branch write current_branch_write

if {[is_enabled multicommit]} {
	.mbar.repository add command -label [mc "Database Statistics"] \
		-command do_stats

	.mbar.repository add command -label [mc "Compress Database"] \
		-command do_gc

	.mbar.repository add command -label [mc "Verify Database"] \
		-command do_fsck_objects

	.mbar.repository add separator

	if {[is_Cygwin]} {
		.mbar.repository add command \
			-label [mc "Create Desktop Icon"] \
			-command do_cygwin_shortcut
	} elseif {[is_Windows]} {
		.mbar.repository add command \
			-label [mc "Create Desktop Icon"] \
			-command do_windows_shortcut
	} elseif {[is_MacOSX]} {
		.mbar.repository add command \
			-label [mc "Create Desktop Icon"] \
			-command do_macosx_app
	}
}

if {[is_MacOSX]} {
	proc ::tk::mac::Quit {args} { do_quit }
} else {
	.mbar.repository add command -label [mc Quit] \
		-command do_quit \
		-accelerator $M1T-Q
}

# -- Edit Menu
#
menu .mbar.edit
.mbar.edit add command -label [mc Undo] \
	-command {catch {[focus] edit undo}} \
	-accelerator $M1T-Z
.mbar.edit add command -label [mc Redo] \
	-command {catch {[focus] edit redo}} \
	-accelerator $M1T-Y
.mbar.edit add separator
.mbar.edit add command -label [mc Cut] \
	-command {catch {tk_textCut [focus]}} \
	-accelerator $M1T-X
.mbar.edit add command -label [mc Copy] \
	-command {catch {tk_textCopy [focus]}} \
	-accelerator $M1T-C
.mbar.edit add command -label [mc Paste] \
	-command {catch {tk_textPaste [focus]; [focus] see insert}} \
	-accelerator $M1T-V
.mbar.edit add command -label [mc Delete] \
	-command {catch {[focus] delete sel.first sel.last}} \
	-accelerator Del
.mbar.edit add separator
.mbar.edit add command -label [mc "Select All"] \
	-command {catch {[focus] tag add sel 0.0 end}} \
	-accelerator $M1T-A

# -- Branch Menu
#
if {[is_enabled branch]} {
	menu .mbar.branch

	.mbar.branch add command -label [mc "Create..."] \
		-command branch_create::dialog \
		-accelerator $M1T-N
	lappend disable_on_lock [list .mbar.branch entryconf \
		[.mbar.branch index last] -state]

	.mbar.branch add command -label [mc "Checkout..."] \
		-command branch_checkout::dialog \
		-accelerator $M1T-O
	lappend disable_on_lock [list .mbar.branch entryconf \
		[.mbar.branch index last] -state]

	.mbar.branch add command -label [mc "Rename..."] \
		-command branch_rename::dialog
	lappend disable_on_lock [list .mbar.branch entryconf \
		[.mbar.branch index last] -state]

	.mbar.branch add command -label [mc "Delete..."] \
		-command branch_delete::dialog
	lappend disable_on_lock [list .mbar.branch entryconf \
		[.mbar.branch index last] -state]

	.mbar.branch add command -label [mc "Reset..."] \
		-command merge::reset_hard
	lappend disable_on_lock [list .mbar.branch entryconf \
		[.mbar.branch index last] -state]
}

# -- Commit Menu
#
proc commit_btn_caption {} {
	if {[is_enabled nocommit]} {
		return [mc "Done"]
	} else {
		return [mc Commit@@verb]
	}
}

if {[is_enabled multicommit] || [is_enabled singlecommit]} {
	menu .mbar.commit

	if {![is_enabled nocommit]} {
		.mbar.commit add radiobutton \
			-label [mc "New Commit"] \
			-command do_select_commit_type \
			-variable selected_commit_type \
			-value new
		lappend disable_on_lock \
			[list .mbar.commit entryconf [.mbar.commit index last] -state]

		.mbar.commit add radiobutton \
			-label [mc "Amend Last Commit"] \
			-command do_select_commit_type \
			-variable selected_commit_type \
			-value amend
		lappend disable_on_lock \
			[list .mbar.commit entryconf [.mbar.commit index last] -state]

		.mbar.commit add separator
	}

	.mbar.commit add command -label [mc Rescan] \
		-command ui_do_rescan \
		-accelerator F5
	lappend disable_on_lock \
		[list .mbar.commit entryconf [.mbar.commit index last] -state]

	.mbar.commit add command -label [mc "Stage To Commit"] \
		-command do_add_selection \
		-accelerator $M1T-T
	lappend disable_on_lock \
		[list .mbar.commit entryconf [.mbar.commit index last] -state]

	.mbar.commit add command -label [mc "Stage Changed Files To Commit"] \
		-command do_add_all \
		-accelerator $M1T-I
	lappend disable_on_lock \
		[list .mbar.commit entryconf [.mbar.commit index last] -state]

	.mbar.commit add command -label [mc "Unstage From Commit"] \
		-command do_unstage_selection \
		-accelerator $M1T-U
	lappend disable_on_lock \
		[list .mbar.commit entryconf [.mbar.commit index last] -state]

	.mbar.commit add command -label [mc "Revert Changes"] \
		-command do_revert_selection \
		-accelerator $M1T-J
	lappend disable_on_lock \
		[list .mbar.commit entryconf [.mbar.commit index last] -state]

	.mbar.commit add separator

	.mbar.commit add command -label [mc "Show Less Context"] \
		-command show_less_context \
		-accelerator $M1T-\-

	.mbar.commit add command -label [mc "Show More Context"] \
		-command show_more_context \
		-accelerator $M1T-=

	.mbar.commit add separator

	if {![is_enabled nocommitmsg]} {
		.mbar.commit add command -label [mc "Sign Off"] \
			-command do_signoff \
			-accelerator $M1T-S
	}

	.mbar.commit add command -label [commit_btn_caption] \
		-command do_commit \
		-accelerator $M1T-Return
	lappend disable_on_lock \
		[list .mbar.commit entryconf [.mbar.commit index last] -state]
}

# -- Merge Menu
#
if {[is_enabled branch]} {
	menu .mbar.merge
	.mbar.merge add command -label [mc "Local Merge..."] \
		-command merge::dialog \
		-accelerator $M1T-M
	lappend disable_on_lock \
		[list .mbar.merge entryconf [.mbar.merge index last] -state]
	.mbar.merge add command -label [mc "Abort Merge..."] \
		-command merge::reset_hard
	lappend disable_on_lock \
		[list .mbar.merge entryconf [.mbar.merge index last] -state]
}

# -- Transport Menu
#
if {[is_enabled transport]} {
	menu .mbar.remote

	.mbar.remote add command \
		-label [mc "Add..."] \
		-command remote_add::dialog \
		-accelerator $M1T-A
	.mbar.remote add command \
		-label [mc "Push..."] \
		-command do_push_anywhere \
		-accelerator $M1T-P
	.mbar.remote add command \
		-label [mc "Delete Branch..."] \
		-command remote_branch_delete::dialog
}

if {[is_MacOSX]} {
	proc ::tk::mac::ShowPreferences {} {do_options}
} else {
	# -- Edit Menu
	#
	.mbar.edit add separator
	.mbar.edit add command -label [mc "Options..."] \
		-command do_options
}

# -- Tools Menu
#
if {[is_enabled multicommit] || [is_enabled singlecommit]} {
	set tools_menubar .mbar.tools
	menu $tools_menubar
	$tools_menubar add separator
	$tools_menubar add command -label [mc "Add..."] -command tools_add::dialog
	$tools_menubar add command -label [mc "Remove..."] -command tools_remove::dialog
	set tools_tailcnt 3
	if {[array names repo_config guitool.*.cmd] ne {}} {
		tools_populate_all
	}
}

# -- Help Menu
#
.mbar add cascade -label [mc Help] -menu .mbar.help
menu .mbar.help

if {[is_MacOSX]} {
	.mbar.apple add command -label [mc "About %s" [appname]] \
		-command do_about
	.mbar.apple add separator
} else {
	.mbar.help add command -label [mc "About %s" [appname]] \
		-command do_about
}
. configure -menu .mbar

set doc_path [githtmldir]
if {$doc_path ne {}} {
	set doc_path [file join $doc_path index.html]

	if {[is_Cygwin]} {
		set doc_path [exec cygpath --mixed $doc_path]
	}
}

if {[file isfile $doc_path]} {
	set doc_url "file:$doc_path"
} else {
	set doc_url {http://www.kernel.org/pub/software/scm/git/docs/}
}

proc start_browser {url} {
	git "web--browse" $url
}

.mbar.help add command -label [mc "Online Documentation"] \
	-command [list start_browser $doc_url]

.mbar.help add command -label [mc "Show SSH Key"] \
	-command do_ssh_key

unset doc_path doc_url

# -- Standard bindings
#
wm protocol . WM_DELETE_WINDOW do_quit
bind all <$M1B-Key-q> do_quit
bind all <$M1B-Key-Q> do_quit
bind all <$M1B-Key-w> {destroy [winfo toplevel %W]}
bind all <$M1B-Key-W> {destroy [winfo toplevel %W]}

set subcommand_args {}
proc usage {} {
	set s "[mc usage:] $::argv0 $::subcommand $::subcommand_args"
	if {[tk windowingsystem] eq "win32"} {
		wm withdraw .
		tk_messageBox -icon info -message $s \
			-title [mc "Usage"]
	} else {
		puts stderr $s
	}
	exit 1
}

proc normalize_relpath {path} {
	set elements {}
	foreach item [file split $path] {
		if {$item eq {.}} continue
		if {$item eq {..} && [llength $elements] > 0
		    && [lindex $elements end] ne {..}} {
			set elements [lrange $elements 0 end-1]
			continue
		}
		lappend elements $item
	}
	return [eval file join $elements]
}

# -- Not a normal commit type invocation?  Do that instead!
#
switch -- $subcommand {
browser -
blame {
	if {$subcommand eq "blame"} {
		set subcommand_args {[--line=<num>] rev? path}
	} else {
		set subcommand_args {rev? path}
	}
	if {$argv eq {}} usage
	set head {}
	set path {}
	set jump_spec {}
	set is_path 0
	foreach a $argv {
		set p [file join $_prefix $a]

		if {$is_path || [file exists $p]} {
			if {$path ne {}} usage
			set path [normalize_relpath $p]
			break
		} elseif {$a eq {--}} {
			if {$path ne {}} {
				if {$head ne {}} usage
				set head $path
				set path {}
			}
			set is_path 1
		} elseif {[regexp {^--line=(\d+)$} $a a lnum]} {
			if {$jump_spec ne {} || $head ne {}} usage
			set jump_spec [list $lnum]
		} elseif {$head eq {}} {
			if {$head ne {}} usage
			set head $a
			set is_path 1
		} else {
			usage
		}
	}
	unset is_path

	if {$head ne {} && $path eq {}} {
		if {[string index $head 0] eq {/}} {
			set path [normalize_relpath $head]
			set head {}
		} else {
			set path [normalize_relpath $_prefix$head]
			set head {}
		}
	}

	if {$head eq {}} {
		load_current_branch
	} else {
		if {[regexp {^[0-9a-f]{1,39}$} $head]} {
			if {[catch {
					set head [git rev-parse --verify $head]
				} err]} {
				if {[tk windowingsystem] eq "win32"} {
					tk_messageBox -icon error -title [mc Error] -message $err
				} else {
					puts stderr $err
				}
				exit 1
			}
		}
		set current_branch $head
	}

	wm deiconify .
	switch -- $subcommand {
	browser {
		if {$jump_spec ne {}} usage
		if {$head eq {}} {
			if {$path ne {} && [file isdirectory $path]} {
				set head $current_branch
			} else {
				set head $path
				set path {}
			}
		}
		browser::new $head $path
	}
	blame   {
		if {$head eq {} && ![file exists $path]} {
			catch {wm withdraw .}
			tk_messageBox \
				-icon error \
				-type ok \
				-title [mc "git-gui: fatal error"] \
				-message [mc "fatal: cannot stat path %s: No such file or directory" $path]
			exit 1
		}
		blame::new $head $path $jump_spec
	}
	}
	return
}
citool -
gui {
	if {[llength $argv] != 0} {
		usage
	}
	# fall through to setup UI for commits
}
default {
	set err "[mc usage:] $argv0 \[{blame|browser|citool}\]"
	if {[tk windowingsystem] eq "win32"} {
		wm withdraw .
		tk_messageBox -icon error -message $err \
			-title [mc "Usage"]
	} else {
		puts stderr $err
	}
	exit 1
}
}

# -- Branch Control
#
${NS}::frame .branch
if {!$use_ttk} {.branch configure -borderwidth 1 -relief sunken}
${NS}::label .branch.l1 \
	-text [mc "Current Branch:"] \
	-anchor w \
	-justify left
${NS}::label .branch.cb \
	-textvariable current_branch \
	-anchor w \
	-justify left
pack .branch.l1 -side left
pack .branch.cb -side left -fill x
pack .branch -side top -fill x

# -- Main Window Layout
#
${NS}::panedwindow .vpane -orient horizontal
${NS}::panedwindow .vpane.files -orient vertical
if {$use_ttk} {
	.vpane add .vpane.files
} else {
	.vpane add .vpane.files -sticky nsew -height 100 -width 200
}
pack .vpane -anchor n -side top -fill both -expand 1

# -- Working Directory File List

textframe .vpane.files.workdir -height 100 -width 200
tlabel .vpane.files.workdir.title -text [mc "Unstaged Changes"] \
	-background lightsalmon -foreground black
ttext $ui_workdir -background white -foreground black \
	-borderwidth 0 \
	-width 20 -height 10 \
	-wrap none \
	-takefocus 1 -highlightthickness 1\
	-cursor $cursor_ptr \
	-xscrollcommand {.vpane.files.workdir.sx set} \
	-yscrollcommand {.vpane.files.workdir.sy set} \
	-state disabled
${NS}::scrollbar .vpane.files.workdir.sx -orient h -command [list $ui_workdir xview]
${NS}::scrollbar .vpane.files.workdir.sy -orient v -command [list $ui_workdir yview]
pack .vpane.files.workdir.title -side top -fill x
pack .vpane.files.workdir.sx -side bottom -fill x
pack .vpane.files.workdir.sy -side right -fill y
pack $ui_workdir -side left -fill both -expand 1

# -- Index File List
#
textframe .vpane.files.index -height 100 -width 200
tlabel .vpane.files.index.title \
	-text [mc "Staged Changes (Will Commit)"] \
	-background lightgreen -foreground black
ttext $ui_index -background white -foreground black \
	-borderwidth 0 \
	-width 20 -height 10 \
	-wrap none \
	-takefocus 1 -highlightthickness 1\
	-cursor $cursor_ptr \
	-xscrollcommand {.vpane.files.index.sx set} \
	-yscrollcommand {.vpane.files.index.sy set} \
	-state disabled
${NS}::scrollbar .vpane.files.index.sx -orient h -command [list $ui_index xview]
${NS}::scrollbar .vpane.files.index.sy -orient v -command [list $ui_index yview]
pack .vpane.files.index.title -side top -fill x
pack .vpane.files.index.sx -side bottom -fill x
pack .vpane.files.index.sy -side right -fill y
pack $ui_index -side left -fill both -expand 1

# -- Insert the workdir and index into the panes
#
.vpane.files add .vpane.files.workdir
.vpane.files add .vpane.files.index
if {!$use_ttk} {
	.vpane.files paneconfigure .vpane.files.workdir -sticky news
	.vpane.files paneconfigure .vpane.files.index -sticky news
}

foreach i [list $ui_index $ui_workdir] {
	rmsel_tag $i
	$i tag conf in_diff -background [$i tag cget in_sel -background]
}
unset i

# -- Diff and Commit Area
#
if {$have_tk85} {
	${NS}::panedwindow .vpane.lower -orient vertical
	${NS}::frame .vpane.lower.commarea
	${NS}::frame .vpane.lower.diff -relief sunken -borderwidth 1 -height 500
	.vpane.lower add .vpane.lower.diff
	.vpane.lower add .vpane.lower.commarea
	.vpane add .vpane.lower
	if {$use_ttk} {
		.vpane.lower pane .vpane.lower.diff -weight 1
		.vpane.lower pane .vpane.lower.commarea -weight 0
	} else {
		.vpane.lower paneconfigure .vpane.lower.diff -stretch always
		.vpane.lower paneconfigure .vpane.lower.commarea -stretch never
	}
} else {
	frame .vpane.lower -height 300 -width 400
	frame .vpane.lower.commarea
	frame .vpane.lower.diff -relief sunken -borderwidth 1
	pack .vpane.lower.diff -fill both -expand 1
	pack .vpane.lower.commarea -side bottom -fill x
	.vpane add .vpane.lower
	.vpane paneconfigure .vpane.lower -sticky nsew
}

# -- Commit Area Buttons
#
${NS}::frame .vpane.lower.commarea.buttons
${NS}::label .vpane.lower.commarea.buttons.l -text {} \
	-anchor w \
	-justify left
pack .vpane.lower.commarea.buttons.l -side top -fill x
pack .vpane.lower.commarea.buttons -side left -fill y

${NS}::button .vpane.lower.commarea.buttons.rescan -text [mc Rescan] \
	-command ui_do_rescan
pack .vpane.lower.commarea.buttons.rescan -side top -fill x
lappend disable_on_lock \
	{.vpane.lower.commarea.buttons.rescan conf -state}

${NS}::button .vpane.lower.commarea.buttons.incall -text [mc "Stage Changed"] \
	-command do_add_all
pack .vpane.lower.commarea.buttons.incall -side top -fill x
lappend disable_on_lock \
	{.vpane.lower.commarea.buttons.incall conf -state}

if {![is_enabled nocommitmsg]} {
	${NS}::button .vpane.lower.commarea.buttons.signoff -text [mc "Sign Off"] \
		-command do_signoff
	pack .vpane.lower.commarea.buttons.signoff -side top -fill x
}

${NS}::button .vpane.lower.commarea.buttons.commit -text [commit_btn_caption] \
	-command do_commit
pack .vpane.lower.commarea.buttons.commit -side top -fill x
lappend disable_on_lock \
	{.vpane.lower.commarea.buttons.commit conf -state}

if {![is_enabled nocommit]} {
	${NS}::button .vpane.lower.commarea.buttons.push -text [mc Push] \
		-command do_push_anywhere
	pack .vpane.lower.commarea.buttons.push -side top -fill x
}

# -- Commit Message Buffer
#
${NS}::frame .vpane.lower.commarea.buffer
${NS}::frame .vpane.lower.commarea.buffer.header
set ui_comm .vpane.lower.commarea.buffer.frame.t
set ui_coml .vpane.lower.commarea.buffer.header.l

if {![is_enabled nocommit]} {
	${NS}::radiobutton .vpane.lower.commarea.buffer.header.new \
		-text [mc "New Commit"] \
		-command do_select_commit_type \
		-variable selected_commit_type \
		-value new
	lappend disable_on_lock \
		[list .vpane.lower.commarea.buffer.header.new conf -state]
	${NS}::radiobutton .vpane.lower.commarea.buffer.header.amend \
		-text [mc "Amend Last Commit"] \
		-command do_select_commit_type \
		-variable selected_commit_type \
		-value amend
	lappend disable_on_lock \
		[list .vpane.lower.commarea.buffer.header.amend conf -state]
}

${NS}::label $ui_coml \
	-anchor w \
	-justify left
proc trace_commit_type {varname args} {
	global ui_coml commit_type
	switch -glob -- $commit_type {
	initial       {set txt [mc "Initial Commit Message:"]}
	amend         {set txt [mc "Amended Commit Message:"]}
	amend-initial {set txt [mc "Amended Initial Commit Message:"]}
	amend-merge   {set txt [mc "Amended Merge Commit Message:"]}
	merge         {set txt [mc "Merge Commit Message:"]}
	*             {set txt [mc "Commit Message:"]}
	}
	$ui_coml conf -text $txt
}
trace add variable commit_type write trace_commit_type
pack $ui_coml -side left -fill x

if {![is_enabled nocommit]} {
	pack .vpane.lower.commarea.buffer.header.amend -side right
	pack .vpane.lower.commarea.buffer.header.new -side right
}

textframe .vpane.lower.commarea.buffer.frame
ttext $ui_comm -background white -foreground black \
	-borderwidth 1 \
	-undo true \
	-maxundo 20 \
	-autoseparators true \
	-takefocus 1 \
	-highlightthickness 1 \
	-relief sunken \
	-width $repo_config(gui.commitmsgwidth) -height 9 -wrap none \
	-font font_diff \
	-yscrollcommand {.vpane.lower.commarea.buffer.frame.sby set}
${NS}::scrollbar .vpane.lower.commarea.buffer.frame.sby \
	-command [list $ui_comm yview]

pack .vpane.lower.commarea.buffer.frame.sby -side right -fill y
pack $ui_comm -side left -fill y
pack .vpane.lower.commarea.buffer.header -side top -fill x
pack .vpane.lower.commarea.buffer.frame -side left -fill y
pack .vpane.lower.commarea.buffer -side left -fill y

# -- Commit Message Buffer Context Menu
#
set ctxm .vpane.lower.commarea.buffer.ctxm
menu $ctxm -tearoff 0
$ctxm add command \
	-label [mc Cut] \
	-command {tk_textCut $ui_comm}
$ctxm add command \
	-label [mc Copy] \
	-command {tk_textCopy $ui_comm}
$ctxm add command \
	-label [mc Paste] \
	-command {tk_textPaste $ui_comm}
$ctxm add command \
	-label [mc Delete] \
	-command {catch {$ui_comm delete sel.first sel.last}}
$ctxm add separator
$ctxm add command \
	-label [mc "Select All"] \
	-command {focus $ui_comm;$ui_comm tag add sel 0.0 end}
$ctxm add command \
	-label [mc "Copy All"] \
	-command {
		$ui_comm tag add sel 0.0 end
		tk_textCopy $ui_comm
		$ui_comm tag remove sel 0.0 end
	}
$ctxm add separator
$ctxm add command \
	-label [mc "Sign Off"] \
	-command do_signoff
set ui_comm_ctxm $ctxm

# -- Diff Header
#
proc trace_current_diff_path {varname args} {
	global current_diff_path diff_actions file_states
	if {$current_diff_path eq {}} {
		set s {}
		set f {}
		set p {}
		set o disabled
	} else {
		set p $current_diff_path
		set s [mapdesc [lindex $file_states($p) 0] $p]
		set f [mc "File:"]
		set p [escape_path $p]
		set o normal
	}

	.vpane.lower.diff.header.status configure -text $s
	.vpane.lower.diff.header.file configure -text $f
	.vpane.lower.diff.header.path configure -text $p
	foreach w $diff_actions {
		uplevel #0 $w $o
	}
}
trace add variable current_diff_path write trace_current_diff_path

gold_frame .vpane.lower.diff.header
tlabel .vpane.lower.diff.header.status \
	-background gold \
	-foreground black \
	-width $max_status_desc \
	-anchor w \
	-justify left
tlabel .vpane.lower.diff.header.file \
	-background gold \
	-foreground black \
	-anchor w \
	-justify left
tlabel .vpane.lower.diff.header.path \
	-background gold \
	-foreground black \
	-anchor w \
	-justify left
pack .vpane.lower.diff.header.status -side left
pack .vpane.lower.diff.header.file -side left
pack .vpane.lower.diff.header.path -fill x
set ctxm .vpane.lower.diff.header.ctxm
menu $ctxm -tearoff 0
$ctxm add command \
	-label [mc Copy] \
	-command {
		clipboard clear
		clipboard append \
			-format STRING \
			-type STRING \
			-- $current_diff_path
	}
lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
bind_button3 .vpane.lower.diff.header.path "tk_popup $ctxm %X %Y"

# -- Diff Body
#
textframe .vpane.lower.diff.body
set ui_diff .vpane.lower.diff.body.t
ttext $ui_diff -background white -foreground black \
	-borderwidth 0 \
	-width 80 -height 5 -wrap none \
	-font font_diff \
	-takefocus 1 -highlightthickness 1 \
	-xscrollcommand {.vpane.lower.diff.body.sbx set} \
	-yscrollcommand {.vpane.lower.diff.body.sby set} \
	-state disabled
catch {$ui_diff configure -tabstyle wordprocessor}
${NS}::scrollbar .vpane.lower.diff.body.sbx -orient horizontal \
	-command [list $ui_diff xview]
${NS}::scrollbar .vpane.lower.diff.body.sby -orient vertical \
	-command [list $ui_diff yview]
pack .vpane.lower.diff.body.sbx -side bottom -fill x
pack .vpane.lower.diff.body.sby -side right -fill y
pack $ui_diff -side left -fill both -expand 1
pack .vpane.lower.diff.header -side top -fill x
pack .vpane.lower.diff.body -side bottom -fill both -expand 1

foreach {n c} {0 black 1 red4 2 green4 3 yellow4 4 blue4 5 magenta4 6 cyan4 7 grey60} {
	$ui_diff tag configure clr4$n -background $c
	$ui_diff tag configure clri4$n -foreground $c
	$ui_diff tag configure clr3$n -foreground $c
	$ui_diff tag configure clri3$n -background $c
}
$ui_diff tag configure clr1 -font font_diffbold
$ui_diff tag configure clr4 -underline 1

$ui_diff tag conf d_info -foreground blue -font font_diffbold

$ui_diff tag conf d_cr -elide true
$ui_diff tag conf d_@ -font font_diffbold
$ui_diff tag conf d_+ -foreground {#00a000}
$ui_diff tag conf d_- -foreground red

$ui_diff tag conf d_++ -foreground {#00a000}
$ui_diff tag conf d_-- -foreground red
$ui_diff tag conf d_+s \
	-foreground {#00a000} \
	-background {#e2effa}
$ui_diff tag conf d_-s \
	-foreground red \
	-background {#e2effa}
$ui_diff tag conf d_s+ \
	-foreground {#00a000} \
	-background ivory1
$ui_diff tag conf d_s- \
	-foreground red \
	-background ivory1

$ui_diff tag conf d< \
	-foreground orange \
	-font font_diffbold
$ui_diff tag conf d= \
	-foreground orange \
	-font font_diffbold
$ui_diff tag conf d> \
	-foreground orange \
	-font font_diffbold

$ui_diff tag raise sel

# -- Diff Body Context Menu
#

proc create_common_diff_popup {ctxm} {
	$ctxm add command \
		-label [mc Refresh] \
		-command reshow_diff
	lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
	$ctxm add command \
		-label [mc Copy] \
		-command {tk_textCopy $ui_diff}
	lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
	$ctxm add command \
		-label [mc "Select All"] \
		-command {focus $ui_diff;$ui_diff tag add sel 0.0 end}
	lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
	$ctxm add command \
		-label [mc "Copy All"] \
		-command {
			$ui_diff tag add sel 0.0 end
			tk_textCopy $ui_diff
			$ui_diff tag remove sel 0.0 end
		}
	lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
	$ctxm add separator
	$ctxm add command \
		-label [mc "Decrease Font Size"] \
		-command {incr_font_size font_diff -1}
	lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
	$ctxm add command \
		-label [mc "Increase Font Size"] \
		-command {incr_font_size font_diff 1}
	lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
	$ctxm add separator
	set emenu $ctxm.enc
	menu $emenu
	build_encoding_menu $emenu [list force_diff_encoding]
	$ctxm add cascade \
		-label [mc "Encoding"] \
		-menu $emenu
	lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
	$ctxm add separator
	$ctxm add command -label [mc "Options..."] \
		-command do_options
}

set ctxm .vpane.lower.diff.body.ctxm
menu $ctxm -tearoff 0
$ctxm add command \
	-label [mc "Apply/Reverse Hunk"] \
	-command {apply_hunk $cursorX $cursorY}
set ui_diff_applyhunk [$ctxm index last]
lappend diff_actions [list $ctxm entryconf $ui_diff_applyhunk -state]
$ctxm add command \
	-label [mc "Apply/Reverse Line"] \
	-command {apply_range_or_line $cursorX $cursorY; do_rescan}
set ui_diff_applyline [$ctxm index last]
lappend diff_actions [list $ctxm entryconf $ui_diff_applyline -state]
$ctxm add separator
$ctxm add command \
	-label [mc "Show Less Context"] \
	-command show_less_context
lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
$ctxm add command \
	-label [mc "Show More Context"] \
	-command show_more_context
lappend diff_actions [list $ctxm entryconf [$ctxm index last] -state]
$ctxm add separator
create_common_diff_popup $ctxm

set ctxmmg .vpane.lower.diff.body.ctxmmg
menu $ctxmmg -tearoff 0
$ctxmmg add command \
	-label [mc "Run Merge Tool"] \
	-command {merge_resolve_tool}
lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
$ctxmmg add separator
$ctxmmg add command \
	-label [mc "Use Remote Version"] \
	-command {merge_resolve_one 3}
lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
$ctxmmg add command \
	-label [mc "Use Local Version"] \
	-command {merge_resolve_one 2}
lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
$ctxmmg add command \
	-label [mc "Revert To Base"] \
	-command {merge_resolve_one 1}
lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
$ctxmmg add separator
$ctxmmg add command \
	-label [mc "Show Less Context"] \
	-command show_less_context
lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
$ctxmmg add command \
	-label [mc "Show More Context"] \
	-command show_more_context
lappend diff_actions [list $ctxmmg entryconf [$ctxmmg index last] -state]
$ctxmmg add separator
create_common_diff_popup $ctxmmg

set ctxmsm .vpane.lower.diff.body.ctxmsm
menu $ctxmsm -tearoff 0
$ctxmsm add command \
	-label [mc "Visualize These Changes In The Submodule"] \
	-command {do_gitk -- true}
lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
$ctxmsm add command \
	-label [mc "Visualize Current Branch History In The Submodule"] \
	-command {do_gitk {} true}
lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
$ctxmsm add command \
	-label [mc "Visualize All Branch History In The Submodule"] \
	-command {do_gitk --all true}
lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
$ctxmsm add separator
$ctxmsm add command \
	-label [mc "Start git gui In The Submodule"] \
	-command {do_git_gui}
lappend diff_actions [list $ctxmsm entryconf [$ctxmsm index last] -state]
$ctxmsm add separator
create_common_diff_popup $ctxmsm

proc has_textconv {path} {
	if {[is_config_false gui.textconv]} {
		return 0
	}
	set filter [gitattr $path diff set]
	set textconv [get_config [join [list diff $filter textconv] .]]
	if {$filter ne {set} && $textconv ne {}} {
		return 1
	} else {
		return 0
	}
}

proc popup_diff_menu {ctxm ctxmmg ctxmsm x y X Y} {
	global current_diff_path file_states
	set ::cursorX $x
	set ::cursorY $y
	if {[info exists file_states($current_diff_path)]} {
		set state [lindex $file_states($current_diff_path) 0]
	} else {
		set state {__}
	}
	if {[string first {U} $state] >= 0} {
		tk_popup $ctxmmg $X $Y
	} elseif {$::is_submodule_diff} {
		tk_popup $ctxmsm $X $Y
	} else {
		set has_range [expr {[$::ui_diff tag nextrange sel 0.0] != {}}]
		if {$::ui_index eq $::current_diff_side} {
			set l [mc "Unstage Hunk From Commit"]
			if {$has_range} {
				set t [mc "Unstage Lines From Commit"]
			} else {
				set t [mc "Unstage Line From Commit"]
			}
		} else {
			set l [mc "Stage Hunk For Commit"]
			if {$has_range} {
				set t [mc "Stage Lines For Commit"]
			} else {
				set t [mc "Stage Line For Commit"]
			}
		}
		if {$::is_3way_diff
			|| $current_diff_path eq {}
			|| {__} eq $state
			|| {_O} eq $state
			|| [string match {?T} $state]
			|| [string match {T?} $state]
			|| [has_textconv $current_diff_path]} {
			set s disabled
		} else {
			set s normal
		}
		$ctxm entryconf $::ui_diff_applyhunk -state $s -label $l
		$ctxm entryconf $::ui_diff_applyline -state $s -label $t
		tk_popup $ctxm $X $Y
	}
}
bind_button3 $ui_diff [list popup_diff_menu $ctxm $ctxmmg $ctxmsm %x %y %X %Y]

# -- Status Bar
#
set main_status [::status_bar::new .status]
pack .status -anchor w -side bottom -fill x
$main_status show [mc "Initializing..."]

# -- Load geometry
#
proc on_ttk_pane_mapped {w pane pos} {
	bind $w <Map> {}
	after 0 [list after idle [list $w sashpos $pane $pos]]
}
proc on_tk_pane_mapped {w pane x y} {
	bind $w <Map> {}
	after 0 [list after idle [list $w sash place $pane $x $y]]
}
proc on_application_mapped {} {
	global repo_config use_ttk
	bind . <Map> {}
	set gm $repo_config(gui.geometry)
	if {$use_ttk} {
		bind .vpane <Map> \
		    [list on_ttk_pane_mapped %W 0 [lindex $gm 1]]
		bind .vpane.files <Map> \
		    [list on_ttk_pane_mapped %W 0 [lindex $gm 2]]
	} else {
		bind .vpane <Map> \
		    [list on_tk_pane_mapped %W 0 \
			 [lindex $gm 1] \
			 [lindex [.vpane sash coord 0] 1]]
		bind .vpane.files <Map> \
		    [list on_tk_pane_mapped %W 0 \
			 [lindex [.vpane.files sash coord 0] 0] \
			 [lindex $gm 2]]
	}
	wm geometry . [lindex $gm 0]
}
if {[info exists repo_config(gui.geometry)]} {
	bind . <Map> [list on_application_mapped]
	wm geometry . [lindex $repo_config(gui.geometry) 0]
}

# -- Load window state
#
if {[info exists repo_config(gui.wmstate)]} {
	catch {wm state . $repo_config(gui.wmstate)}
}

# -- Key Bindings
#
bind $ui_comm <$M1B-Key-Return> {do_commit;break}
bind $ui_comm <$M1B-Key-t> {do_add_selection;break}
bind $ui_comm <$M1B-Key-T> {do_add_selection;break}
bind $ui_comm <$M1B-Key-u> {do_unstage_selection;break}
bind $ui_comm <$M1B-Key-U> {do_unstage_selection;break}
bind $ui_comm <$M1B-Key-j> {do_revert_selection;break}
bind $ui_comm <$M1B-Key-J> {do_revert_selection;break}
bind $ui_comm <$M1B-Key-i> {do_add_all;break}
bind $ui_comm <$M1B-Key-I> {do_add_all;break}
bind $ui_comm <$M1B-Key-x> {tk_textCut %W;break}
bind $ui_comm <$M1B-Key-X> {tk_textCut %W;break}
bind $ui_comm <$M1B-Key-c> {tk_textCopy %W;break}
bind $ui_comm <$M1B-Key-C> {tk_textCopy %W;break}
bind $ui_comm <$M1B-Key-v> {tk_textPaste %W; %W see insert; break}
bind $ui_comm <$M1B-Key-V> {tk_textPaste %W; %W see insert; break}
bind $ui_comm <$M1B-Key-a> {%W tag add sel 0.0 end;break}
bind $ui_comm <$M1B-Key-A> {%W tag add sel 0.0 end;break}
bind $ui_comm <$M1B-Key-minus> {show_less_context;break}
bind $ui_comm <$M1B-Key-KP_Subtract> {show_less_context;break}
bind $ui_comm <$M1B-Key-equal> {show_more_context;break}
bind $ui_comm <$M1B-Key-plus> {show_more_context;break}
bind $ui_comm <$M1B-Key-KP_Add> {show_more_context;break}

bind $ui_diff <$M1B-Key-x> {tk_textCopy %W;break}
bind $ui_diff <$M1B-Key-X> {tk_textCopy %W;break}
bind $ui_diff <$M1B-Key-c> {tk_textCopy %W;break}
bind $ui_diff <$M1B-Key-C> {tk_textCopy %W;break}
bind $ui_diff <$M1B-Key-v> {break}
bind $ui_diff <$M1B-Key-V> {break}
bind $ui_diff <$M1B-Key-a> {%W tag add sel 0.0 end;break}
bind $ui_diff <$M1B-Key-A> {%W tag add sel 0.0 end;break}
bind $ui_diff <$M1B-Key-j> {do_revert_selection;break}
bind $ui_diff <$M1B-Key-J> {do_revert_selection;break}
bind $ui_diff <Key-Up>     {catch {%W yview scroll -1 units};break}
bind $ui_diff <Key-Down>   {catch {%W yview scroll  1 units};break}
bind $ui_diff <Key-Left>   {catch {%W xview scroll -1 units};break}
bind $ui_diff <Key-Right>  {catch {%W xview scroll  1 units};break}
bind $ui_diff <Key-k>         {catch {%W yview scroll -1 units};break}
bind $ui_diff <Key-j>         {catch {%W yview scroll  1 units};break}
bind $ui_diff <Key-h>         {catch {%W xview scroll -1 units};break}
bind $ui_diff <Key-l>         {catch {%W xview scroll  1 units};break}
bind $ui_diff <Control-Key-b> {catch {%W yview scroll -1 pages};break}
bind $ui_diff <Control-Key-f> {catch {%W yview scroll  1 pages};break}
bind $ui_diff <Button-1>   {focus %W}

if {[is_enabled branch]} {
	bind . <$M1B-Key-n> branch_create::dialog
	bind . <$M1B-Key-N> branch_create::dialog
	bind . <$M1B-Key-o> branch_checkout::dialog
	bind . <$M1B-Key-O> branch_checkout::dialog
	bind . <$M1B-Key-m> merge::dialog
	bind . <$M1B-Key-M> merge::dialog
}
if {[is_enabled transport]} {
	bind . <$M1B-Key-p> do_push_anywhere
	bind . <$M1B-Key-P> do_push_anywhere
}

bind .   <Key-F5>     ui_do_rescan
bind .   <$M1B-Key-r> ui_do_rescan
bind .   <$M1B-Key-R> ui_do_rescan
bind .   <$M1B-Key-s> do_signoff
bind .   <$M1B-Key-S> do_signoff
bind .   <$M1B-Key-t> { toggle_or_diff toggle %W }
bind .   <$M1B-Key-T> { toggle_or_diff toggle %W }
bind .   <$M1B-Key-u> { toggle_or_diff toggle %W }
bind .   <$M1B-Key-U> { toggle_or_diff toggle %W }
bind .   <$M1B-Key-j> do_revert_selection
bind .   <$M1B-Key-J> do_revert_selection
bind .   <$M1B-Key-i> do_add_all
bind .   <$M1B-Key-I> do_add_all
bind .   <$M1B-Key-minus> {show_less_context;break}
bind .   <$M1B-Key-KP_Subtract> {show_less_context;break}
bind .   <$M1B-Key-equal> {show_more_context;break}
bind .   <$M1B-Key-plus> {show_more_context;break}
bind .   <$M1B-Key-KP_Add> {show_more_context;break}
bind .   <$M1B-Key-Return> do_commit
bind .   <$M1B-Key-KP_Enter> do_commit
foreach i [list $ui_index $ui_workdir] {
	bind $i <Button-1>       { toggle_or_diff click %W %x %y; break }
	bind $i <$M1B-Button-1>  { add_one_to_selection %W %x %y; break }
	bind $i <Shift-Button-1> { add_range_to_selection %W %x %y; break }
	bind $i <Key-Up>         { toggle_or_diff up %W; break }
	bind $i <Key-Down>       { toggle_or_diff down %W; break }
}
unset i

set file_lists($ui_index) [list]
set file_lists($ui_workdir) [list]

wm title . "[appname] ([reponame]) [file normalize $_gitworktree]"
focus -force $ui_comm

# -- Warn the user about environmental problems.  Cygwin's Tcl
#    does *not* pass its env array onto any processes it spawns.
#    This means that git processes get none of our environment.
#
if {[is_Cygwin]} {
	set ignored_env 0
	set suggest_user {}
	set msg [mc "Possible environment issues exist.

The following environment variables are probably
going to be ignored by any Git subprocess run
by %s:

" [appname]]
	foreach name [array names env] {
		switch -regexp -- $name {
		{^GIT_INDEX_FILE$} -
		{^GIT_OBJECT_DIRECTORY$} -
		{^GIT_ALTERNATE_OBJECT_DIRECTORIES$} -
		{^GIT_DIFF_OPTS$} -
		{^GIT_EXTERNAL_DIFF$} -
		{^GIT_PAGER$} -
		{^GIT_TRACE$} -
		{^GIT_CONFIG$} -
		{^GIT_(AUTHOR|COMMITTER)_DATE$} {
			append msg " - $name\n"
			incr ignored_env
		}
		{^GIT_(AUTHOR|COMMITTER)_(NAME|EMAIL)$} {
			append msg " - $name\n"
			incr ignored_env
			set suggest_user $name
		}
		}
	}
	if {$ignored_env > 0} {
		append msg [mc "
This is due to a known issue with the
Tcl binary distributed by Cygwin."]

		if {$suggest_user ne {}} {
			append msg [mc "

A good replacement for %s
is placing values for the user.name and
user.email settings into your personal
~/.gitconfig file.
" $suggest_user]
		}
		warn_popup $msg
	}
	unset ignored_env msg suggest_user name
}

# -- Only initialize complex UI if we are going to stay running.
#
if {[is_enabled transport]} {
	load_all_remotes

	set n [.mbar.remote index end]
	populate_remotes_menu
	set n [expr {[.mbar.remote index end] - $n}]
	if {$n > 0} {
		if {[.mbar.remote type 0] eq "tearoff"} { incr n }
		.mbar.remote insert $n separator
	}
	unset n
}

if {[winfo exists $ui_comm]} {
	set GITGUI_BCK_exists [load_message GITGUI_BCK utf-8]

	# -- If both our backup and message files exist use the
	#    newer of the two files to initialize the buffer.
	#
	if {$GITGUI_BCK_exists} {
		set m [gitdir GITGUI_MSG]
		if {[file isfile $m]} {
			if {[file mtime [gitdir GITGUI_BCK]] > [file mtime $m]} {
				catch {file delete [gitdir GITGUI_MSG]}
			} else {
				$ui_comm delete 0.0 end
				$ui_comm edit reset
				$ui_comm edit modified false
				catch {file delete [gitdir GITGUI_BCK]}
				set GITGUI_BCK_exists 0
			}
		}
		unset m
	}

	proc backup_commit_buffer {} {
		global ui_comm GITGUI_BCK_exists

		set m [$ui_comm edit modified]
		if {$m || $GITGUI_BCK_exists} {
			set msg [string trim [$ui_comm get 0.0 end]]
			regsub -all -line {[ \r\t]+$} $msg {} msg

			if {$msg eq {}} {
				if {$GITGUI_BCK_exists} {
					catch {file delete [gitdir GITGUI_BCK]}
					set GITGUI_BCK_exists 0
				}
			} elseif {$m} {
				catch {
					set fd [open [gitdir GITGUI_BCK] w]
					fconfigure $fd -encoding utf-8
					puts -nonewline $fd $msg
					close $fd
					set GITGUI_BCK_exists 1
				}
			}

			$ui_comm edit modified false
		}

		set ::GITGUI_BCK_i [after 2000 backup_commit_buffer]
	}

	backup_commit_buffer

	# -- If the user has aspell available we can drive it
	#    in pipe mode to spellcheck the commit message.
	#
	set spell_cmd [list |]
	set spell_dict [get_config gui.spellingdictionary]
	lappend spell_cmd aspell
	if {$spell_dict ne {}} {
		lappend spell_cmd --master=$spell_dict
	}
	lappend spell_cmd --mode=none
	lappend spell_cmd --encoding=utf-8
	lappend spell_cmd pipe
	if {$spell_dict eq {none}
	 || [catch {set spell_fd [open $spell_cmd r+]} spell_err]} {
		bind_button3 $ui_comm [list tk_popup $ui_comm_ctxm %X %Y]
	} else {
		set ui_comm_spell [spellcheck::init \
			$spell_fd \
			$ui_comm \
			$ui_comm_ctxm \
		]
	}
	unset -nocomplain spell_cmd spell_fd spell_err spell_dict
}

lock_index begin-read
if {![winfo ismapped .]} {
	wm deiconify .
}
after 1 {
	if {[is_enabled initialamend]} {
		force_amend
	} else {
		do_rescan
	}

	if {[is_enabled nocommitmsg]} {
		$ui_comm configure -state disabled -background gray
	}
}
if {[is_enabled multicommit] && ![is_config_false gui.gcwarning]} {
	after 1000 hint_gc
}
if {[is_enabled retcode]} {
	bind . <Destroy> {+terminate_me %W}
}
if {$picked && [is_config_true gui.autoexplore]} {
	do_explore
}

# Local variables:
# mode: tcl
# indent-tabs-mode: t
# tab-width: 4
# End: