Update README.md #30
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| name: Eval | |
| on: pull_request_target | |
| permissions: | |
| contents: read | |
| jobs: | |
| attrs: | |
| name: Attributes | |
| runs-on: ubuntu-latest | |
| outputs: | |
| mergedSha: ${{ steps.merged.outputs.mergedSha }} | |
| systems: ${{ steps.systems.outputs.systems }} | |
| steps: | |
| # Important: Because of `pull_request_target`, this doesn't check out the PR, | |
| # but rather the base branch of the PR, which is needed so we don't run untrusted code | |
| - name: Check out the ci directory of the base branch | |
| uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2 | |
| with: | |
| path: base | |
| sparse-checkout: ci | |
| - name: Check if the PR can be merged and get the test merge commit | |
| id: merged | |
| env: | |
| GH_TOKEN: ${{ github.token }} | |
| run: | | |
| if mergedSha=$(base/ci/get-merge-commit.sh ${{ github.repository }} ${{ github.event.number }}); then | |
| echo "Checking the merge commit $mergedSha" | |
| echo "mergedSha=$mergedSha" >> "$GITHUB_OUTPUT" | |
| else | |
| # Skipping so that no notifications are sent | |
| echo "Skipping the rest..." | |
| fi | |
| rm -rf base | |
| - name: Check out the PR at the test merge commit | |
| uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2 | |
| # Add this to _all_ subsequent steps to skip them | |
| if: steps.merged.outputs.mergedSha | |
| with: | |
| ref: ${{ env.mergedSha }} | |
| path: nixpkgs | |
| - name: Install Nix | |
| uses: cachix/install-nix-action@08dcb3a5e62fa31e2da3d490afc4176ef55ecd72 # v30 | |
| if: steps.merged.outputs.mergedSha | |
| - name: Evaluate the list of all attributes and get the systems matrix | |
| id: systems | |
| if: steps.merged.outputs.mergedSha | |
| run: | | |
| nix-build nixpkgs/ci -A eval.attrpathsSuperset | |
| echo "systems=$(<result/systems.json)" >> "$GITHUB_OUTPUT" | |
| - name: Upload the list of all attributes | |
| uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3 | |
| if: steps.merged.outputs.mergedSha | |
| with: | |
| name: paths | |
| path: result/* | |
| outpaths: | |
| name: Outpaths | |
| runs-on: ubuntu-latest | |
| needs: attrs | |
| # Skip this and future steps if the PR can't be merged | |
| if: needs.attrs.outputs.mergedSha | |
| strategy: | |
| matrix: | |
| system: ${{ fromJSON(needs.attrs.outputs.systems) }} | |
| steps: | |
| - name: Download the list of all attributes | |
| uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8 | |
| with: | |
| name: paths | |
| path: paths | |
| - name: Check out the PR at the test merge commit | |
| uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2 | |
| with: | |
| ref: ${{ needs.attrs.outputs.mergedSha }} | |
| path: nixpkgs | |
| - name: Install Nix | |
| uses: cachix/install-nix-action@08dcb3a5e62fa31e2da3d490afc4176ef55ecd72 # v30 | |
| - name: Evaluate the ${{ matrix.system }} output paths for all derivation attributes | |
| run: | | |
| nix-build nixpkgs/ci -A eval.singleSystem \ | |
| --argstr evalSystem ${{ matrix.system }} \ | |
| --arg attrpathFile ./paths/paths.json \ | |
| --arg chunkSize 10000 | |
| # If it uses too much memory, slightly decrease chunkSize | |
| - name: Upload the output paths and eval stats | |
| uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3 | |
| if: needs.attrs.outputs.mergedSha | |
| with: | |
| name: intermediate-${{ matrix.system }} | |
| path: result/* | |
| process: | |
| name: Process | |
| runs-on: ubuntu-latest | |
| needs: outpaths | |
| steps: | |
| - name: Download output paths and eval stats for all systems | |
| uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8 | |
| with: | |
| pattern: intermediate-* | |
| path: intermediate | |
| - name: Check out the PR at the test merge commit | |
| uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2 | |
| with: | |
| ref: ${{ needs.attrs.outputs.mergedSha }} | |
| path: nixpkgs | |
| - name: Install Nix | |
| uses: cachix/install-nix-action@08dcb3a5e62fa31e2da3d490afc4176ef55ecd72 # v30 | |
| - name: Combine all output paths and eval stats | |
| run: | | |
| nix-build nixpkgs/ci -A eval.combine \ | |
| --arg resultsDir ./intermediate | |
| - name: Upload the combined results | |
| uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4.4.3 | |
| with: | |
| name: result | |
| path: result/* | |
| # TODO: Run this workflow also on `push` (on at least the main development branches) | |
| # Then add an extra step here that waits for the base branch (not the merge base, because that could be very different) | |
| # to have completed the eval, then use | |
| # gh api --method GET /repos/NixOS/nixpkgs/actions/workflows/eval.yml/runs -f head_sha=<BASE> | |
| # and follow it to the artifact results, where you can then download the outpaths.json from the base branch | |
| # That can then be used to compare the number of changed paths, get evaluation stats and ping appropriate reviewers |