feat(nix-patches): Reimplement pkgs.applyPatches

It allows fetching patched-sources from cache and avoids idiotic decisions made upstream
2025-06-12 23:37:51 +02:00 · 2025-06-12 23:37:51 +02:00 · b2cf1c2715
commit b2cf1c2715
parent 0455ca4175
1 changed files with 24 additions and 5 deletions
--- a/lib/nix-patches/default.nix
+++ b/lib/nix-patches/default.nix
@ -71,12 +71,31 @@ rec {
          src,
          name,
          patches ? mkPatches name,
-        }:
-        pkgs.applyPatches {
-          inherit patches src;
+          prePatch ? null,
+          postPatch ? null,
+          ...
+        }@args:
+        if patches == [ ] && prePatch == null && postPatch == null then
+          src
+        else
+          pkgs.stdenvNoCC.mkDerivation (
+            args
+            // {
+              name = "${name}-patched";

-          name = "${name}-patched";
-        };
+              inherit patches prePatch postPatch;
+
+              preferLocalBuild = true;
+              allowSubstitutes = true;
+              phases = [
+                "unpackPhase"
+                "patchPhase"
+                "installPhase"
+              ];
+
+              installPhase = "cp -R . $out";
+            }
+          );

      applyPatches' = name: src: applyPatches { inherit name src; };
    };