feat ✨: add colmena #4
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| name: Check that Nix files are formatted | |
| on: | |
| pull_request_target: | |
| types: [opened, synchronize, reopened, edited] | |
| permissions: | |
| contents: read | |
| jobs: | |
| nixos: | |
| name: nixfmt-check | |
| runs-on: ubuntu-latest | |
| if: "!contains(github.event.pull_request.title, '[skip treewide]')" | |
| steps: | |
| - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7 | |
| with: | |
| ref: refs/pull/${{ github.event.pull_request.number }}/merge | |
| fetch-depth: 2 | |
| - name: Checking out base branch | |
| run: | | |
| base=$(mktemp -d) | |
| baseRev=$(git rev-parse HEAD^1) | |
| git worktree add "$base" "$baseRev" | |
| echo "baseRev=$baseRev" >> "$GITHUB_ENV" | |
| echo "base=$base" >> "$GITHUB_ENV" | |
| - name: Get Nixpkgs revision for nixfmt | |
| run: | | |
| # This should not be a URL, because it would allow PRs to run arbitrary code in CI! | |
| url=$(jq -r .pins.nixpkgs.url npins/sources.json) | |
| echo "url=$url" >> "$GITHUB_ENV" | |
| - uses: cachix/install-nix-action@ba0dd844c9180cbf77aa72a116d6fbc515d0e87b # v27 | |
| with: | |
| # explicitly enable sandbox | |
| extra_nix_config: sandbox = true | |
| nix_path: nixpkgs=${{ env.url }} | |
| - name: Install nixfmt | |
| run: "nix-env -f '<nixpkgs>' -iAP nixfmt-rfc-style" | |
| - name: Check that Nix files are formatted according to the RFC style | |
| run: | | |
| unformattedFiles=() | |
| # Loop through all Nix files touched by the PR | |
| while readarray -d '' -n 2 entry && (( ${#entry[@]} != 0 )); do | |
| type=${entry[0]} | |
| file=${entry[1]} | |
| case $type in | |
| A*) | |
| source="" | |
| dest=$file | |
| ;; | |
| M*) | |
| source=$file | |
| dest=$file | |
| ;; | |
| C*|R*) | |
| source=$file | |
| read -r -d '' dest | |
| ;; | |
| *) | |
| echo "Ignoring file $file with type $type" | |
| continue | |
| esac | |
| done < <(git diff -z --name-status ${{ env.baseRev }} -- '*.nix') | |
| if (( "${#unformattedFiles[@]}" > 0 )); then | |
| echo "Some new/changed Nix files are not properly formatted" | |
| echo "Please go to the Nixpkgs root directory, run \`nix-shell\`, then:" | |
| echo "nixfmt ${unformattedFiles[*]@Q}" | |
| exit 1 | |
| fi |