Skip to content

Code Coverage (llvm-cov) #86

Code Coverage (llvm-cov)

Code Coverage (llvm-cov) #86

Workflow file for this run

name: Code Coverage (llvm-cov)
on:
schedule:
- cron: "0 1 * * *" # every day at 1am (UTC)
workflow_dispatch:
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: true
CARGO_PROFILE_TEST_DEBUG_ASSERTIONS: true
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 # pin@v4
- uses: bmwill/rust-cache@fb63fcd7a959767755b88b5af2f5cbf65fb8a127 # pin@v1
- name: Install cargo-llvm-cov
uses: taiki-e/install-action@125e82eef6e60d2b0c20d4d1f4cf81db37f68bf3 # pin@cargo-llvm-cov
- name: Install nextest
uses: taiki-e/install-action@7e58f89e24a544d88f7a74c6eed8a3df3fd4c658 # pin@nextest
- name: Set Swap Space
uses: actionhippie/swap-space@v1
with:
size: 256G
- name: Install llvm-tools
run: |
TOOLCHAIN=nightly-x86_64-unknown-linux-gnu
rustup component add llvm-tools --toolchain "$TOOLCHAIN"
LLVM_PROFDATA=$HOME/.rustup/toolchains/$TOOLCHAIN/lib/rustlib/x86_64-unknown-linux-gnu/bin/llvm-profdata
echo "LLVM_PROFDATA=$LLVM_PROFDATA" >> $GITHUB_ENV
if [ -x "$LLVM_PROFDATA" ]; then
$LLVM_PROFDATA --version
else
echo "Error: llvm-profdata not found at $LLVM_PROFDATA or not executable."
exit 1
fi
- name: Compute code coverage (nextest.profdata)
run: |
cargo +nightly llvm-cov clean --profraw-only
echo "Computing nextest code coverage."
set +e
IOTA_SKIP_SIMTESTS=1 cargo +nightly llvm-cov \
--ignore-run-fail \
--no-report \
nextest -vv
echo "Scanning for corrupted .profraw files. This might take a while."
find target/llvm-cov-target -name '*.profraw' | while read file; do
if ! "$LLVM_PROFDATA" show "$file" > /dev/null 2>&1; then
echo "Removing corrupted file: $file"
rm "$file"
fi
done
find target/llvm-cov-target -name '*.profraw' -print0 | xargs -0 $LLVM_PROFDATA merge \
--failure-mode=warn \
--sparse \
--output target/nextest.profdata
[ -f "target/nextest.profdata" ] || exit 1
- name: Compute code coverage (simtest.profdata)
run: |
cargo +nightly llvm-cov clean --profraw-only
git clean -fd
set +e
./scripts/simtest/simtest-cov.sh
[ -f "target/simtest.profdata" ] || exit 1
- name: Create html report (report.tgz)
run: |
cd target
if [ -d "report" ]; then
echo "Cleaning old report."
rm -rf report
fi
echo "Creating html report."
if [ -f "simtest.profdata" ]; then
$LLVM_PROFDATA merge --failure-mode=warn --sparse nextest.profdata simtest.profdata --output merged.profdata
else
mv nextest.profdata merged.profdata
fi
[ -f "merged.profdata" ] || exit 1
LLVM_PROFILE_FILE="merged.profdata" cargo +nightly llvm-cov report \
--html \
--output-dir . \
--ignore-filename-regex 'external-crates/.*'
[ -d "html" ] || exit 1
mv html report
echo "Packaging html report."
[ -d "report" ] || exit 1
tar -czf report.tgz report
[ -f "report.tgz" ] || exit 1
- name: Publish html report and trigger update
run: |
rsync -av target/report.tgz ${{ secrets.CODEGOV_REPORT_HOST }}:transfer/cargo-llvm-cov/
ssh ${{ secrets.CODEGOV_REPORT_HOST }}
- name: Backup html report
uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # pin@v4
if: always()
with:
name: report
path: target/report.tgz
if-no-files-found: error
retention-days: 30