Cabal and Cabal-syntax API checking #46
Workflow file for this run
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| name: Check API | |
| on: | |
| push: | |
| paths-ignore: | |
| - "doc/**" | |
| - "**/README.md" | |
| - "CONTRIBUTING.md" | |
| branches: | |
| - master | |
| pull_request: | |
| paths-ignore: | |
| - "doc/**" | |
| - "**/README.md" | |
| - "CONTRIBUTING.md" | |
| release: | |
| types: | |
| - created | |
| workflow_call: | |
| jobs: | |
| check-api: | |
| name: Check API using ${{ matrix.sys.os }} ghc-${{ matrix.ghc }} | |
| runs-on: ${{ matrix.sys.os }} | |
| strategy: | |
| matrix: | |
| # we check API only on one platform and ghc release, since it shouldn't | |
| # vary elsewhere and the API tracer is sensitive to both | |
| sys: | |
| - { os: ubuntu-latest } | |
| ghc: | |
| [ | |
| # print-api only supports a small subset of ghc versions | |
| "9.10.1", | |
| ] | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - uses: haskell-actions/setup@v2 | |
| id: setup-haskell | |
| with: | |
| ghc-version: ${{ matrix.ghc }} | |
| cabal-version: 3.12.1.0 # see https://github.com/haskell/cabal/pull/10251 | |
| ghcup-release-channel: https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.8.yaml | |
| # I was going to use the canned action, but it only supports a single package and reinstalls the same binary each time | |
| - name: Install print-api | |
| run: | | |
| wget -q https://github.com/Kleidukos/print-api/releases/download/v0.1.0.1/print-api-0.1.0.1-Linux-static-${{ matrix.ghc }}-x86_64.tar.gz | |
| tar -xzf print-api-0.1.0.1-Linux-static-${{ matrix.ghc }}-x86_64.tar.gz | |
| mkdir -p "$HOME/.local/bin" | |
| mv print-api "$HOME/.local/bin/print-api" | |
| chmod +x "$HOME/.local/bin/print-api" | |
| echo "$HOME/.local/bin" >> $GITHUB_PATH | |
| # print-api needs environment files. It also doesn't make a lot of sense to use the cached builds, sadly, | |
| # since they're special in different ways (bootstrap and validate) and we want a vanilla build. And there | |
| # isn't enough cache space to make a third cache, even though this is a very limited build. | |
| - name: Build Cabal with environment files | |
| run: cabal build Cabal-syntax Cabal cabal-install-solver --write-ghc-environment-files=always | |
| - name: Generate Cabal-syntax, Cabal, and cabal-install-solver APIs | |
| run: make generate-api | |
| # upload the new API records as artifacts, since there's no guarantee that a contributor could produce | |
| # them (wrong platform or ghc version). This must happen _before_ we check the API, because the | |
| # point is to have them available on API mismatch so they can be updated. | |
| - uses: actions/upload-artifact@v4 | |
| with: | |
| name: Cabal-api | |
| path: '*.api' | |
| - name: Check Cabal-syntax, Cabal, and cabal-install-solver APIs | |
| run: | | |
| rc=0 | |
| if diff -c Cabal-syntax/Cabal-syntax-${{ matrix.ghc }}.api Cabal-syntax-${{ matrix.ghc }}.api >api.tmp; then | |
| : | |
| else | |
| echo "Cabal-syntax API changed" | |
| if [ $(wc -l < api.tmp) -lt 50 ]; then | |
| cat api.tmp | |
| else | |
| echo Diff too large for GitHub viewer | |
| fi | |
| rc=1 | |
| fi | |
| if diff -c Cabal/Cabal-${{ matrix.ghc }}.api Cabal-${{ matrix.ghc }}.api >api.tmp; then | |
| : | |
| else | |
| echo "Cabal API changed" | |
| if [ $(wc -l < api.tmp) -lt 50 ]; then | |
| cat api.tmp | |
| else | |
| echo Diff too large for GitHub viewer | |
| fi | |
| rc=1 | |
| fi | |
| if diff -c cabal-install-solver/cabal-install-solver-${{ matrix.ghc }}.api cabal-install-solver-${{ matrix.ghc }}.api >api.tmp; then | |
| : | |
| else | |
| echo "cabal-install-solver API changed" | |
| if [ $(wc -l < api.tmp) -lt 50 ]; then | |
| cat api.tmp | |
| else | |
| echo Diff too large for GitHub viewer | |
| fi | |
| rc=1 | |
| fi | |
| if [ $rc -ne 0 ]; then | |
| echo "The new APIs are in the artifact uploaded in the previous step." | |
| exit $rc | |
| fi |