Skip to content

Code Coverage (llvm-cov) #138

Code Coverage (llvm-cov)

Code Coverage (llvm-cov) #138

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