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authorVincent Ambo <mail@tazj.in>2022-01-30T16·06+0300
committertazjin <tazjin@tvl.su>2022-01-31T16·11+0000
commitaa122cbae78ce97d60c0c98ba14df753d97e40b1 (patch)
tree12b98d85c4b18fe870feb26de70db9ba61837bd7 /nix/mergePatch/default.nix
parent2d10d60fac0fd00a71b65cfdcb9fba0477b2086c (diff)
style: format entire depot with nixpkgs-fmt r/3723
This CL can be used to compare the style of nixpkgs-fmt against other
formatters (nixpkgs, alejandra).

Change-Id: I87c6abff6bcb546b02ead15ad0405f81e01b6d9e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4397
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: wpcarro <wpcarro@gmail.com>
Reviewed-by: Profpatsch <mail@profpatsch.de>
Reviewed-by: kanepyork <rikingcoding@gmail.com>
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: cynthia <cynthia@tvl.fyi>
Reviewed-by: edef <edef@edef.eu>
Reviewed-by: eta <tvl@eta.st>
Reviewed-by: grfn <grfn@gws.fyi>
Diffstat (limited to 'nix/mergePatch/default.nix')
-rw-r--r--nix/mergePatch/default.nix140
1 files changed, 73 insertions, 67 deletions
diff --git a/nix/mergePatch/default.nix b/nix/mergePatch/default.nix
index 0f80b93d4c65..d56106925a65 100644
--- a/nix/mergePatch/default.nix
+++ b/nix/mergePatch/default.nix
@@ -8,31 +8,31 @@
   For example, given the following original document:
 
   {
-    a = "b";
-    c = {
+  a = "b";
+  c = {
       d = "e";
       f = "g";
-    }
+  }
   }
 
   Changing the value of `a` and removing `f` can be achieved by merging the patch
 
   {
-    a = "z";
-    c.f = null;
+  a = "z";
+  c.f = null;
   }
 
   which results in
 
   {
-    a = "z";
-    c = {
+  a = "z";
+  c = {
       d = "e";
-    };
+  };
   }
 
   Pseudo-code:
-    define MergePatch(Target, Patch):
+  define MergePatch(Target, Patch):
       if Patch is an Object:
         if Target is not an Object:
           Target = {} # Ignore the contents and set it to an empty Object
@@ -55,19 +55,19 @@ let
   mergePatch = target: patch:
     if lib.isAttrs patch
     then
-      let target' = if lib.isAttrs target then target else {};
+      let target' = if lib.isAttrs target then target else { };
       in foldlAttrs
-          (acc: patchEl:
-            if patchEl.value == null
-            then removeAttrs acc [ patchEl.name ]
-            else acc // {
-              ${patchEl.name} =
-                mergePatch
-                  (acc.${patchEl.name} or "unnused")
-                  patchEl.value;
-            })
-          target'
-          patch
+        (acc: patchEl:
+          if patchEl.value == null
+          then removeAttrs acc [ patchEl.name ]
+          else acc // {
+            ${patchEl.name} =
+              mergePatch
+                (acc.${patchEl.name} or "unnused")
+                patchEl.value;
+          })
+        target'
+        patch
     else patch;
 
   inherit (depot.nix.runTestsuite)
@@ -93,46 +93,49 @@ let
       };
       emptyPatch = it "the empty patch returns the original target" [
         (assertEq "id"
-          (mergePatch testTarget {})
+          (mergePatch testTarget { })
           testTarget)
       ];
       nonAttrs = it "one side is a non-attrset value" [
         (assertEq "target is a value means the value is replaced by the patch"
           (mergePatch 42 testPatch)
-          (mergePatch {} testPatch))
+          (mergePatch { } testPatch))
         (assertEq "patch is a value means it replaces target alltogether"
           (mergePatch testTarget 42)
           42)
       ];
       rfcExamples = it "the examples from the RFC" [
         (assertEq "a subset is deleted and overwritten"
-          (mergePatch testTarget testPatch) {
+          (mergePatch testTarget testPatch)
+          {
             a = "z";
             c = {
               d = "e";
             };
           })
         (assertEq "a more complicated example from the example section"
-          (mergePatch {
-            title = "Goodbye!";
+          (mergePatch
+            {
+              title = "Goodbye!";
               author = {
                 givenName = "John";
                 familyName = "Doe";
               };
-            tags = [ "example" "sample" ];
-            content = "This will be unchanged";
-          } {
-            title = "Hello!";
-            phoneNumber = "+01-123-456-7890";
-            author.familyName = null;
-            tags = [ "example" ];
-          })
+              tags = [ "example" "sample" ];
+              content = "This will be unchanged";
+            }
+            {
+              title = "Hello!";
+              phoneNumber = "+01-123-456-7890";
+              author.familyName = null;
+              tags = [ "example" ];
+            })
           {
             title = "Hello!";
             phoneNumber = "+01-123-456-7890";
-              author = {
-                givenName = "John";
-              };
+            author = {
+              givenName = "John";
+            };
             tags = [ "example" ];
             content = "This will be unchanged";
           })
@@ -144,42 +147,45 @@ let
             (assertEq "test number ${toString index}"
               (mergePatch target patch)
               res);
-          in it "the test suite from the RFC" [
-              (r 1  {"a" = "b";}       {"a" = "c";}       {"a" = "c";})
-              (r 2  {"a" = "b";}       {"b" = "c";}       {"a" = "b"; "b" = "c";})
-              (r 3  {"a" = "b";}       {"a" = null;}      {})
-              (r 4  {"a" = "b"; "b" = "c";}
-                    {"a" = null;}
-                    {"b" = "c";})
-              (r 5  {"a" = ["b"];}     {"a" = "c";}       {"a" = "c";})
-              (r 6  {"a" = "c";}       {"a" = ["b"];}     {"a" = ["b"];})
-              (r 7  {"a" = {"b" = "c";}; }
-                    {"a" = {"b" = "d"; "c" = null;};}
-                    {"a" = {"b" = "d";};})
-              (r 8  {"a" = [{"b" = "c";}];}
-                    {"a" = [1];}
-                    {"a" = [1];})
-              (r 9  ["a" "b"]          ["c" "d"]       ["c" "d"])
-              (r 10 {"a" = "b";}       ["c"]           ["c"])
-              (r 11 {"a" = "foo";}     null            null)
-              (r 12 {"a" = "foo";}     "bar"           "bar")
-              (r 13 {"e" = null;}      {"a" = 1;}      {"e" = null; "a" = 1;})
-              (r 14 [1 2]
-                    {"a" = "b"; "c" = null;}
-                    {"a" = "b";})
-              (r 15 {}
-                {"a" = {"bb" = {"ccc" = null;};};}
-                {"a" = {"bb" = {};};})
-            ];
-
-    in runTestsuite "mergePatch" [
+        in
+        it "the test suite from the RFC" [
+          (r 1 { "a" = "b"; } { "a" = "c"; } { "a" = "c"; })
+          (r 2 { "a" = "b"; } { "b" = "c"; } { "a" = "b"; "b" = "c"; })
+          (r 3 { "a" = "b"; } { "a" = null; } { })
+          (r 4 { "a" = "b"; "b" = "c"; }
+            { "a" = null; }
+            { "b" = "c"; })
+          (r 5 { "a" = [ "b" ]; } { "a" = "c"; } { "a" = "c"; })
+          (r 6 { "a" = "c"; } { "a" = [ "b" ]; } { "a" = [ "b" ]; })
+          (r 7 { "a" = { "b" = "c"; }; }
+            { "a" = { "b" = "d"; "c" = null; }; }
+            { "a" = { "b" = "d"; }; })
+          (r 8 { "a" = [{ "b" = "c"; }]; }
+            { "a" = [ 1 ]; }
+            { "a" = [ 1 ]; })
+          (r 9 [ "a" "b" ] [ "c" "d" ] [ "c" "d" ])
+          (r 10 { "a" = "b"; } [ "c" ] [ "c" ])
+          (r 11 { "a" = "foo"; } null null)
+          (r 12 { "a" = "foo"; } "bar" "bar")
+          (r 13 { "e" = null; } { "a" = 1; } { "e" = null; "a" = 1; })
+          (r 14 [ 1 2 ]
+            { "a" = "b"; "c" = null; }
+            { "a" = "b"; })
+          (r 15 { }
+            { "a" = { "bb" = { "ccc" = null; }; }; }
+            { "a" = { "bb" = { }; }; })
+        ];
+
+    in
+    runTestsuite "mergePatch" [
       emptyPatch
       nonAttrs
       rfcExamples
       rfcTests
     ];
 
-in {
+in
+{
   __functor = _: mergePatch;
 
   inherit tests;