Merge branch 'nixos-unstable-small' of https://github.com/NixOS/nixpkgs

Conflicts:
	nixpkgs/pkgs/build-support/rust/build-rust-package/default.nix

1 files changed, 10 insertions, 5 deletions

diff --git a/nixpkgs/.github/workflows/check-by-name.yml b/nixpkgs/.github/workflows/check-by-name.yml
index a9a6181a47bd..4295c6475848 100644
--- a/nixpkgs/.github/workflows/check-by-name.yml
+++ b/nixpkgs/.github/workflows/check-by-name.yml
@@ -4,8 +4,8 @@
 # When you make changes to this workflow, also update pkgs/test/nixpkgs-check-by-name/scripts/run-local.sh adequately
 name: Check pkgs/by-name
 
-# The pre-built tool is fetched from a channel,
-# making it work predictable on all PRs.
+# The tool is pinned to a pre-built version on Hydra,
+# see pkgs/test/nixpkgs-check-by-name/scripts/README.md
 on:
   # Using pull_request_target instead of pull_request avoids having to approve first time contributors
   pull_request_target
@@ -90,9 +90,14 @@ jobs:
           base=$(mktemp -d)
           git worktree add "$base" "$(git rev-parse HEAD^1)"
           echo "base=$base" >> "$GITHUB_ENV"
-      - uses: cachix/install-nix-action@7ac1ec25491415c381d9b62f0657c7a028df52a7 # v24
-      - name: Fetching the tool
-        run: pkgs/test/nixpkgs-check-by-name/scripts/fetch-tool.sh "$GITHUB_BASE_REF" result
+      - uses: cachix/install-nix-action@6004951b182f8860210c8d6f0d808ec5b1a33d28 # v25
+      - name: Fetching the pinned tool
+        # Update the pinned version using pkgs/test/nixpkgs-check-by-name/scripts/update-pinned-tool.sh
+        run: |
+          # Get the direct /nix/store path from the pin to avoid having to evaluate Nixpkgs
+          toolPath=$(jq -r '."ci-path"' pkgs/test/nixpkgs-check-by-name/scripts/pinned-tool.json)
+          # This asks the substituter for the path, which should be there because Hydra will have pre-built and pushed it
+          nix-store --realise "$toolPath" --add-root result
       - name: Running nixpkgs-check-by-name
         run: |
           if result/bin/nixpkgs-check-by-name --base "$base" .; then