Crdb 29662 #2
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| name: PR code coverage (generate) | |
| on: | |
| pull_request: | |
| types: [ opened, reopened, synchronize ] | |
| branches: [ master ] | |
| jobs: | |
| code-cover-gen: | |
| runs-on: ubuntu-latest | |
| env: | |
| PR: ${{ github.event.pull_request.number }} | |
| HEAD_SHA: ${{ github.event.pull_request.head.sha }} | |
| GH_TOKEN: ${{ github.token }} | |
| FETCH_DEPTH: 15 | |
| steps: | |
| - uses: actions/checkout@v3 | |
| with: | |
| # By default, checkout merges the PR into the current master. | |
| # Instead, we want to check out the PR as is. | |
| ref: ${{ github.event.pull_request.head.sha }} | |
| # Fetching the entire history is much slower; we only fetch the last | |
| # 15 commits. As such, we don't support PRs with 15 commits or more | |
| # (we cannot get to the "base" commit). | |
| fetch-depth: ${{ env.FETCH_DEPTH }} | |
| - name: Set up Bazel cache | |
| uses: actions/cache@v3 | |
| with: | |
| path: | | |
| ~/.cache/bazel | |
| key: ${{ runner.os }}-bazel-${{ hashFiles('.bazelversion', '.bazelrc', 'WORKSPACE', 'WORKSPACE.bazel', 'MODULE.bazel') }} | |
| restore-keys: | | |
| ${{ runner.os }}-bazel- | |
| - name: Get list of changed packages | |
| continue-on-error: true | |
| shell: bash | |
| run: | | |
| set -euxo pipefail | |
| MAX_CHANGED_PKGS=20 | |
| FETCH_DEPTH=${{ env.FETCH_DEPTH }} | |
| mkdir -p artifacts | |
| skip() { | |
| echo "Skipping code coverage on PR #$PR: $1" | |
| # Generate the json files with an error (which will show up in Reviewable). | |
| msg="$1; see $GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID." | |
| jq -n --arg err "$msg" '{error: $err}' > artifacts/cover-${PR}-${HEAD_SHA}.json | |
| if [ -n "${BASE_SHA:-}" ]; then | |
| jq -n --arg err "$msg" '{error: $err}' > artifacts/cover-${PR}-${BASE_SHA}.json | |
| fi | |
| echo "SKIP=true" >> "${GITHUB_ENV}" | |
| exit 1 | |
| } | |
| # To get the base commit, we get the number of commits in the PR. | |
| # Note that github.event.pull_request.base.sha is not what we want, | |
| # that is the tip of master and not necessarily the PR fork point. | |
| NUM_COMMITS=$(gh pr view $PR --json commits --jq '.commits | length') | |
| # The number of commits bust be below the checkout fetch-depth. | |
| if [ ${NUM_COMMITS} -ge ${FETCH_DEPTH} ]; then | |
| echo "ERROR=too many commits (${NUM_COMMITS})" >> ${GITHUB_ENV} | |
| exit 1 | |
| fi | |
| BASE_SHA=$(git rev-parse HEAD~${NUM_COMMITS}) | |
| CHANGED_PKGS=$(build/ghactions/changed-go-pkgs.sh ${BASE_SHA} ${HEAD_SHA}) | |
| NUM_CHANGED_PKGS=$(echo "${CHANGED_PKGS}" | wc -w) | |
| if [ ${NUM_CHANGED_PKGS} -gt ${MAX_CHANGED_PKGS} ]; then | |
| echo "ERROR=too many changed packages (${NUM_CHANGED_PKGS})" >> ${GITHUB_ENV} | |
| exit 1 | |
| fi | |
| echo "BASE_SHA=${BASE_SHA}" >> "${GITHUB_ENV}" | |
| echo "CHANGED_PKGS=${CHANGED_PKGS}" >> "${GITHUB_ENV}" | |
| - name: Run "after" test coverage | |
| if: env.ERROR == '' | |
| continue-on-error: true | |
| shell: bash | |
| run: | | |
| set -euxo pipefail | |
| CHANGED_PKGS='${{ env.CHANGED_PKGS }}' | |
| # Make a copy of the script so that the "before" run below uses the | |
| # same version. | |
| cp build/ghactions/pr-codecov-run-tests.sh ${RUNNER_TEMP}/ | |
| if ! ${RUNNER_TEMP}/pr-codecov-run-tests.sh artifacts/cover-${PR}-${HEAD_SHA}.json "${CHANGED_PKGS}"; then | |
| echo "ERROR=tests failed" >> ${GITHUB_ENV} | |
| exit 1 | |
| fi | |
| - name: Run "before" test coverage | |
| if: env.ERROR == '' | |
| continue-on-error: true | |
| shell: bash | |
| run: | | |
| set -euxo pipefail | |
| BASE_SHA='${{ env.BASE_SHA }}' | |
| CHANGED_PKGS='${{ env.CHANGED_PKGS }}' | |
| git checkout -f ${BASE_SHA} | |
| if ! ${RUNNER_TEMP}/pr-codecov-run-tests.sh artifacts/cover-${PR}-${BASE_SHA}.json "${CHANGED_PKGS}"; then | |
| echo "ERROR=tests failed on base branch" >> ${GITHUB_ENV} | |
| exit 1 | |
| fi | |
| - name: Finalize | |
| shell: bash | |
| run: | | |
| ERROR='${{ env.ERROR }}' | |
| if [ -n "$ERROR" ]; then | |
| # Generate the json files with an error (which will show up in Reviewable). | |
| msg="$ERROR; see [run]($GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID)." | |
| jq -n --arg err "$msg" '{error: $err}' > artifacts/cover-${PR}-${HEAD_SHA}.json | |
| BASE_SHA=${{ env.BASE_SHA }} | |
| if [ -n "$BASE_SHA" ]; then | |
| jq -n --arg err "$msg" '{error: $err}' > artifacts/cover-${PR}-${BASE_SHA}.json | |
| fi | |
| fi | |
| - name: Upload artifacts | |
| uses: actions/upload-artifact@v3 | |
| with: | |
| name: cover | |
| path: artifacts/cover-*.json |