nodejs: add a corepack output

doc/release-notes/rl-2605.section.md

@@ -143,7 +143,7 @@
 
 - `services.openssh.settings.AcceptEnv` now explicitly defined as an option that takes a list of strings, to facilitate option merging. Setting it to a string value is no longer supported.
 
-- `nodejs-slim` has a `npm` output, and `nodejs` no longer has a `libv8` output.
+- `nodejs-slim` has a `npm` and a `corepack` outputs, and `nodejs` no longer has a `libv8` output.
 
 - All Xfce packages have been moved to top level (e.g. if you previously added `pkgs.xfce.xfce4-whiskermenu-plugin` to `environment.systemPackages`, you will need to change it to `pkgs.xfce4-whiskermenu-plugin`). The `xfce` scope will be removed in NixOS 26.11.
 

pkgs/development/web/nodejs/corepack.nix

@@ -8,7 +8,8 @@ stdenv.mkDerivation {
   pname = "corepack-nodejs";
   inherit (nodejs) version;
 
-  nativeBuildInputs = [ nodejs ];
+  nativeBuildInputs = [ nodejs.corepack ];
+  buildInputs = [ nodejs ];
 
   dontUnpack = true;
 

pkgs/development/web/nodejs/nodejs.nix

@@ -173,6 +173,8 @@ let
     builtins.attrNames sharedLibDeps
   );
 
+  bundlesCorepack = !lib.versionAtLeast version "25.0.0";
+
   # Currently stdenv sets CC/LD/AR/etc environment variables to program names
   # instead of absolute paths. If we add cctools to nativeBuildInputs, that
   # would shadow stdenv’s bintools and potentially break other parts of the
@@ -275,6 +277,7 @@ let
         "libv8"
         "npm"
       ]
+      ++ lib.optional bundlesCorepack "corepack"
       ++ lib.optionals (stdenv.hostPlatform == stdenv.buildPlatform) [ "dev" ];
       setOutputFlags = false;
       moveToDev = false;
@@ -353,6 +356,7 @@ let
 
       postPatch = ''
         substituteInPlace tools/install.py \
+          --replace-fail '  corepack_files(options, action)' "  oip=options.install_path;options.install_path='$corepack';corepack_files(options, action);options.install_path=oip" \
           --replace-fail '  npm_files(options, action)' "  oip=options.install_path;options.install_path='$npm';npm_files(options, action);options.install_path=oip"
       ''
       + lib.optionalString stdenv.hostPlatform.isDarwin ''
@@ -505,21 +509,29 @@ let
       outputChecks = {
         out = {
           disallowedReferences = [
+            "libv8"
             "npm"
+          ]
+          ++ lib.optional bundlesCorepack "corepack";
+        };
+        corepack = {
+          disallowedReferences = [
             "libv8"
+            "npm"
           ];
         };
         libv8 = {
           disallowedReferences = [
             "out"
             "npm"
-          ];
+          ]
+          ++ lib.optional bundlesCorepack "corepack";
         };
         npm = {
           disallowedReferences = [
-            "out"
             "libv8"
-          ];
+          ]
+          ++ lib.optional bundlesCorepack "corepack";
         };
       };
 
@@ -560,8 +572,6 @@ let
         ''
         + ''
 
-          HOST_PATH=$out/bin patchShebangs --host $out
-
           ${lib.optionalString canExecute ''
             $out/bin/node --completion-bash > node.bash
             installShellCompletion node.bash
@@ -609,6 +619,8 @@ let
         '';
 
       postFixup = ''
+        HOST_PATH=$out/bin patchShebangs --host $out ${lib.optionalString bundlesCorepack "$corepack"} $npm
+
         for dir in "$npm/lib/node_modules/npm/man/"*; do
           mkdir -p $npm/share/man/$(basename "$dir")
           for page in "$dir"/*; do

pkgs/development/web/nodejs/symlink.nix

@@ -0,0 +1,14 @@
+{
+  lib,
+  nodejs-slim,
+  symlinkJoin,
+}:
+symlinkJoin {
+  pname = "nodejs";
+  inherit (nodejs-slim) version passthru meta;
+  paths = [
+    nodejs-slim
+    nodejs-slim.npm
+  ]
+  ++ lib.optional (builtins.hasAttr "corepack" nodejs-slim) nodejs-slim.corepack;
+}

pkgs/top-level/all-packages.nix

@@ -2876,47 +2876,19 @@ with pkgs;
   nodejs-slim = nodejs-slim_24;
 
   nodejs-slim_20 = callPackage ../development/web/nodejs/v20.nix { };
-  nodejs_20 = symlinkJoin {
-    pname = "nodejs";
-    inherit (nodejs-slim_20) version passthru meta;
-    paths = [
-      nodejs-slim_20
-      nodejs-slim_20.npm
-    ];
-  };
+  nodejs_20 = callPackage ../development/web/nodejs/symlink.nix { nodejs-slim = nodejs-slim_20; };
   corepack_20 = callPackage ../development/web/nodejs/corepack.nix { nodejs = nodejs-slim_20; };
 
   nodejs-slim_22 = callPackage ../development/web/nodejs/v22.nix { };
-  nodejs_22 = symlinkJoin {
-    pname = "nodejs";
-    inherit (nodejs-slim_22) version passthru meta;
-    paths = [
-      nodejs-slim_22
-      nodejs-slim_22.npm
-    ];
-  };
+  nodejs_22 = callPackage ../development/web/nodejs/symlink.nix { nodejs-slim = nodejs-slim_22; };
   corepack_22 = callPackage ../development/web/nodejs/corepack.nix { nodejs = nodejs-slim_22; };
 
   nodejs-slim_24 = callPackage ../development/web/nodejs/v24.nix { };
-  nodejs_24 = symlinkJoin {
-    pname = "nodejs";
-    inherit (nodejs-slim_24) version passthru meta;
-    paths = [
-      nodejs-slim_24
-      nodejs-slim_24.npm
-    ];
-  };
+  nodejs_24 = callPackage ../development/web/nodejs/symlink.nix { nodejs-slim = nodejs-slim_24; };
   corepack_24 = callPackage ../development/web/nodejs/corepack.nix { nodejs = nodejs-slim_24; };
 
   nodejs-slim_25 = callPackage ../development/web/nodejs/v25.nix { };
-  nodejs_25 = symlinkJoin {
-    pname = "nodejs";
-    inherit (nodejs-slim_25) version passthru meta;
-    paths = [
-      nodejs-slim_25
-      nodejs-slim_25.npm
-    ];
-  };
+  nodejs_25 = callPackage ../development/web/nodejs/symlink.nix { nodejs-slim = nodejs-slim_25; };
 
   # Update this when adding the newest nodejs major version!
   nodejs_latest = nodejs_25;