Code Coverage (llvm-cov) #154
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| name: Code Coverage (llvm-cov) | |
| on: | |
| schedule: | |
| - cron: "0 1 * * *" # every day at 1am (UTC) | |
| workflow_dispatch: | |
| inputs: | |
| branch-or-commit: | |
| description: "Branch or commit to test code coverage." | |
| type: string | |
| required: false | |
| default: "" | |
| jobs: | |
| llvm-cov: | |
| name: Generate code coverage | |
| runs-on: self-hosted | |
| timeout-minutes: 180 | |
| env: | |
| # Don't emit giant backtraces in the CI logs. | |
| RUST_BACKTRACE: short | |
| # Rustup | |
| RUSTUP_MAX_RETRIES: 10 | |
| # Cargo | |
| CARGO_TERM_COLOR: always | |
| CARGO_INCREMENTAL: 0 | |
| # Find a good balance between runtime performance and accurate code coverage analysis. | |
| CARGO_PROFILE_TEST_OPT_LEVEL: 1 | |
| CARGO_PROFILE_TEST_DEBUG: false | |
| CARGO_PROFILE_TEST_DEBUG_ASSERTIONS: false | |
| CARGO_PROFILE_TEST_OVERFLOW_CHECKS: false | |
| CARGO_PROFILE_TEST_LTO: off | |
| CARGO_PROFILE_TEST_CODEGEN_UNITS: 1 | |
| # Allow more retries for network requests in cargo (downloading crates) and | |
| # rustup (installing toolchains). This should help to reduce flaky CI failures | |
| # from transient network timeouts or other issues. | |
| CARGO_NET_RETRY: 10 | |
| steps: | |
| - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1 | |
| with: | |
| ref: ${{ github.event.inputs.branch-or-commit || github.ref }} | |
| - uses: bmwill/rust-cache@cb2cf0cc7c5198d3364b9630e2c3d457f160790c # v1.4.0 | |
| - name: Install nextest and cargo-llvm-cov | |
| uses: taiki-e/install-action@375e0c7f08a66b8c2ba7e7eef31a6f91043a81b0 # v2.44.38 | |
| with: | |
| tool: nextest,cargo-llvm-cov | |
| - name: Set Swap Space | |
| uses: actionhippie/swap-space@73376950a0019f8e1f6a3d3d2673fe2aed74ae17 # v1.0.2 | |
| with: | |
| size: 256G | |
| - name: Install llvm-tools | |
| run: | | |
| TOOLCHAIN=$(rustup show active-toolchain | cut -d ' ' -f 1) | |
| rustup component add llvm-tools --toolchain "$TOOLCHAIN" | |
| LLVM_PROFDATA="$HOME/.rustup/toolchains/$TOOLCHAIN/lib/rustlib/x86_64-unknown-linux-gnu/bin/llvm-profdata" | |
| if [ -x "$LLVM_PROFDATA" ]; then | |
| $LLVM_PROFDATA --version | |
| echo "LLVM_PROFDATA=$LLVM_PROFDATA" >> $GITHUB_ENV | |
| else | |
| echo "🚨 Error 🚨: llvm-profdata not found at $LLVM_PROFDATA, or is not executable." | |
| exit 1 | |
| fi | |
| - name: Run code coverage (nextest) | |
| run: | | |
| set +e | |
| echo "Generating coverage data (.profraw files)." | |
| IOTA_SKIP_SIMTESTS=1 cargo llvm-cov --ignore-run-fail --no-report nextest | |
| echo "Scanning for corrupted .profraw files. This might take a while." | |
| find target/llvm-cov-target -name '*.profraw' | while read file; do | |
| if ! "$LLVM_PROFDATA" show "$file" > /dev/null 2>&1; then | |
| echo "$file: corruped -> removing" | |
| rm "$file" | |
| fi | |
| done | |
| echo "Trying to merge .profraw files." | |
| find target/llvm-cov-target -name '*.profraw' -print0 | xargs -0 $LLVM_PROFDATA merge \ | |
| --failure-mode=warn \ | |
| --sparse \ | |
| --output target/nextest.profdata | |
| if [ -s "target/nextest.profdata" ]; then | |
| echo "Successfully collected nextest coverage data." | |
| else | |
| echo "🚨 Error 🚨: Collecting nexttest coverage failed." | |
| exit 1 | |
| fi | |
| - name: Run code coverage (simtest) | |
| run: | | |
| git clean -fd | |
| set +e | |
| echo "Generating coverage data (.profraw files)." | |
| ./scripts/simtest/simtest-cov.sh | |
| echo "Scanning for corrupted .profraw files. This might take a while." | |
| find target/llvm-cov-target -name '*.profraw' | while read file; do | |
| if ! "$LLVM_PROFDATA" show "$file" > /dev/null 2>&1; then | |
| echo "$file: corruped -> removing" | |
| rm "$file" | |
| fi | |
| done | |
| echo "Trying to merge .profraw files." | |
| find target/llvm-cov-target -name '*.profraw' -print0 | xargs -0 $LLVM_PROFDATA merge \ | |
| --failure-mode=warn \ | |
| --sparse \ | |
| --output target/simtest.profdata | |
| if [ -s "target/simtest.profdata" ]; then | |
| echo "Successfully collected simtest coverage data." | |
| else | |
| echo "🚨 Warning 🚨: Collecting simtest coverage failed." | |
| fi | |
| - name: Create report (lcov.info) | |
| run: | | |
| cd target | |
| if [ -s "simtest.profdata" ]; then | |
| echo "Merging nextest and simtest coverage data." | |
| $LLVM_PROFDATA merge --failure-mode=warn --sparse nextest.profdata simtest.profdata --output merged.profdata | |
| else | |
| echo "Using only nextest coverage data." | |
| mv nextest.profdata merged.profdata | |
| fi | |
| [ -s "merged.profdata" ] || exit 1 | |
| echo "Creating report (lcov.info)." | |
| LLVM_PROFILE_FILE="merged.profdata" cargo llvm-cov report \ | |
| --lcov \ | |
| --output-path lcov.info \ | |
| --ignore-filename-regex 'external-crates/.*' | |
| echo "Removing absolute path prefix: ${{ github.workspace }} from report." | |
| sed --in-place "s#${{ github.workspace }}#.#g" lcov.info | |
| - name: Upload coverage to Coveralls | |
| uses: coverallsapp/github-action@cfd0633edbd2411b532b808ba7a8b5e04f76d2c8 # v2.3.4 | |
| with: | |
| github-token: ${{ secrets.GITHUB_TOKEN }} | |
| path-to-lcov: target/lcov.info | |
| flag-name: nextest+simtest | |
| fail-on-error: true |