Recognize windows-sys signatures as "C" or "system" depending on cfg #386
Workflow file for this run
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
| # This workflow checks if a PR commit has changed the size of a hello world Rust program. | |
| # It downloads Rustc and compiles two versions of a stage0 compiler - one using the base commit | |
| # of the PR, and one using the latest commit in the PR. | |
| # If the size of the hello world program has changed, it posts a comment to the PR. | |
| name: Check binary size | |
| on: | |
| pull_request_target: | |
| # HACK(jubilee): something broke the distributed LLVM libso and I don't know what. | |
| branches: [] | |
| # - master | |
| # Both the "measure" and "report" jobs need to know this. | |
| env: | |
| SIZE_DATA_DIR: sizes | |
| # Responsibility is divided between two jobs "measure" and "report", so that the | |
| # job that builds (and potentnially runs) untrusted code does not have PR write | |
| # permission, and vice-versa. | |
| jobs: | |
| measure: | |
| name: Check binary size | |
| strategy: | |
| matrix: | |
| platform: [ubuntu-latest, windows-latest] | |
| runs-on: ${{ matrix.platform }} | |
| permissions: | |
| contents: read | |
| env: | |
| # This cannot be used as a context variable in the 'uses' key later. If it | |
| # changes, update those steps too. | |
| BACKTRACE_DIR: backtrace | |
| RUSTC_DIR: rustc | |
| TEST_MAIN_RS: foo.rs | |
| BASE_COMMIT: ${{ github.event.pull_request.base.sha }} | |
| HEAD_COMMIT: ${{ github.event.pull_request.head.sha }} | |
| SIZE_DATA_FILE: size-${{ strategy.job-index }}.json | |
| steps: | |
| - name: Print info | |
| shell: bash | |
| run: | | |
| echo "Current SHA: $HEAD_COMMIT" | |
| echo "Base SHA: $BASE_COMMIT" | |
| # Note: the backtrace source that's cloned here is NOT the version to be | |
| # patched in to std. It's cloned here to access the Github action for | |
| # building and measuring the test binary. | |
| - name: Clone backtrace to access Github action | |
| uses: actions/checkout@v4 | |
| with: | |
| path: ${{ env.BACKTRACE_DIR }} | |
| - name: Clone Rustc | |
| uses: actions/checkout@v4 | |
| with: | |
| repository: rust-lang/rust | |
| path: ${{ env.RUSTC_DIR }} | |
| - name: Set up std repository and backtrace submodule for size test | |
| shell: bash | |
| working-directory: ${{ env.RUSTC_DIR }} | |
| env: | |
| PR_SOURCE_REPO: ${{ github.event.pull_request.head.repo.full_name }} | |
| run: | | |
| # Bootstrap config | |
| cat <<EOF > config.toml | |
| change-id = 9999999 | |
| [llvm] | |
| download-ci-llvm = true | |
| [rust] | |
| incremental = false | |
| EOF | |
| # Test program source | |
| cat <<EOF > $TEST_MAIN_RS | |
| fn main() { | |
| panic!(); | |
| } | |
| EOF | |
| git submodule update --init library/backtrace | |
| cd library/backtrace | |
| git remote add head-pr "https://github.com/$PR_SOURCE_REPO" | |
| git fetch --all | |
| - name: Build binary with base version of backtrace | |
| uses: ./backtrace/.github/actions/build-with-patched-std | |
| with: | |
| backtrace-commit: ${{ env.BASE_COMMIT }} | |
| main-rs: ${{ env.TEST_MAIN_RS }} | |
| rustc-dir: ${{ env.RUSTC_DIR }} | |
| id: size-reference | |
| - name: Build binary with PR version of backtrace | |
| uses: ./backtrace/.github/actions/build-with-patched-std | |
| with: | |
| backtrace-commit: ${{ env.HEAD_COMMIT }} | |
| main-rs: ${{ env.TEST_MAIN_RS }} | |
| rustc-dir: ${{ env.RUSTC_DIR }} | |
| id: size-updated | |
| # There is no built-in way to "collect" all the outputs of a set of jobs | |
| # run with a matrix strategy. Subsequent jobs that have a "needs" | |
| # dependency on this one will be run once, when the last matrix job is | |
| # run. Appending data to a single file within a matrix is subject to race | |
| # conditions. So we write the size data to files with distinct names | |
| # generated from the job index. | |
| - name: Write sizes to file | |
| uses: actions/github-script@v6 | |
| env: | |
| SIZE_REFERENCE: ${{ steps.size-reference.outputs.test-binary-size }} | |
| SIZE_UPDATED: ${{ steps.size-updated.outputs.test-binary-size }} | |
| PLATFORM: ${{ matrix.platform }} | |
| with: | |
| script: | | |
| const fs = require("fs"); | |
| const path = require("path"); | |
| fs.mkdirSync(process.env.SIZE_DATA_DIR, {recursive: true}); | |
| const output_data = JSON.stringify({ | |
| platform: process.env.PLATFORM, | |
| reference: process.env.SIZE_REFERENCE, | |
| updated: process.env.SIZE_UPDATED, | |
| }); | |
| // The "wx" flag makes this fail if the file exists, which we want, | |
| // because there should be no collisions. | |
| fs.writeFileSync( | |
| path.join(process.env.SIZE_DATA_DIR, process.env.SIZE_DATA_FILE), | |
| output_data, | |
| { flag: "wx" }, | |
| ); | |
| - name: Upload size data | |
| uses: actions/upload-artifact@v4 | |
| with: | |
| name: size-files | |
| path: ${{ env.SIZE_DATA_DIR }}/${{ env.SIZE_DATA_FILE }} | |
| retention-days: 1 | |
| if-no-files-found: error | |
| report: | |
| name: Report binary size changes | |
| runs-on: ubuntu-latest | |
| needs: measure | |
| permissions: | |
| pull-requests: write | |
| steps: | |
| # Clone backtrace to access Github composite actions to report size. | |
| - uses: actions/checkout@v4 | |
| - name: Download size data | |
| uses: actions/download-artifact@v4 | |
| with: | |
| name: size-files | |
| path: ${{ env.SIZE_DATA_DIR }} | |
| - name: Analyze and report size changes | |
| uses: ./.github/actions/report-code-size-changes | |
| with: | |
| data-directory: ${{ env.SIZE_DATA_DIR }} |