stdenv: add meta.repository field

1 files changed, 27 insertions, 1 deletions

diff --git a/pkgs/stdenv/generic/check-meta.nix b/pkgs/stdenv/generic/check-meta.nix
index 63c853e3dc317..eb4482be78945 100644
--- a/pkgs/stdenv/generic/check-meta.nix
+++ b/pkgs/stdenv/generic/check-meta.nix
@@ -296,6 +296,10 @@ let
       str
     ];
     downloadPage = str;
+    repository = union [
+      (listOf str)
+      str
+    ];
     changelog = union [
       (listOf str)
       str
@@ -444,7 +448,29 @@ let
     let
       outputs = attrs.outputs or [ "out" ];
     in
-    {
+    optionalAttrs (attrs ? src.meta.homepage || attrs ? srcs && isList attrs.srcs && any (src: src ? meta.homepage) attrs.srcs) {
+      # should point to an http-browsable source tree, if available.
+      # fetchers like fetchFromGitHub set it automatically.
+      # this could be handled a lot easier if we nulled it instead
+      # of having it be undefined, but that wouldn't match the
+      # other attributes.
+      repository = let
+        getSrcs = attrs:
+          if attrs ? src
+          then
+            [ attrs.src ]
+          else
+            lib.filter (src: src ? meta.homepage) attrs.srcs;
+        getHomePages = srcs: map (src: src.meta.homepage) srcs;
+        unlist = list:
+          if lib.length list == 1
+          then
+            lib.elemAt list 0
+          else
+            list;
+      in
+        unlist (getHomePages (getSrcs attrs));
+    } // {
       # `name` derivation attribute includes cross-compilation cruft,
       # is under assert, and is sanitized.
       # Let's have a clean always accessible version here.