name: CI
on:
push:
branches: [main]
pull_request:
env:
CARGO_TERM_COLOR: always
jobs:
fmt:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@master
with:
toolchain: stable
components: rustfmt
- run: cargo fmt --check
clippy:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@master
with:
toolchain: stable
components: clippy
- uses: Swatinem/rust-cache@v2
- run: cargo clippy --workspace --all-targets -- -D warnings
test:
runs-on: ${{ matrix.os }}
strategy:
matrix:
os: [ubuntu-latest, macos-latest]
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@master
with:
toolchain: stable
- uses: Swatinem/rust-cache@v2
- name: Install glibc headers (signal enumeration test)
if: runner.os == 'Linux'
run: sudo apt-get install -y libc6-dev
- run: cargo install cargo-show-asm --locked
- run: cargo test --workspace
msrv:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@master
with:
toolchain: "1.88.0"
- uses: Swatinem/rust-cache@v2
- run: sudo apt-get install -y libc6-dev
- name: Install Rust 1.59 for runtime MSRV test
run: rustup toolchain install 1.59.0 --profile minimal
- run: cargo install cargo-show-asm --locked
- run: cargo test --workspace
coverage:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@master
with:
toolchain: stable
- uses: taiki-e/install-action@cargo-llvm-cov
- uses: Swatinem/rust-cache@v2
- run: sudo apt-get install -y libc6-dev
- run: cargo llvm-cov --workspace --lcov --output-path lcov.info
- uses: codecov/codecov-action@v5
with:
token: ${{ secrets.CODECOV_TOKEN }}
files: lcov.info
test-hygiene:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Reject unsafe env var mutation in runtime tests
run: |
# Tests must not use std::env::set_var / remove_var -- it causes
# flaky failures by racing with parallel tests on process-global
# state. Use flush_to(dir) or Command::env() instead.
if grep -rn 'env::set_var\|env::remove_var' piano-runtime/src/ --include='*.rs'; then
echo "::error::Found unsafe env var mutation in piano-runtime (see above)."
echo "Use flush_to(dir) or Command::env() instead of std::env::set_var."
exit 1
fi
doc:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: dtolnay/rust-toolchain@master
with:
toolchain: stable
- uses: Swatinem/rust-cache@v2
- run: cargo doc --workspace --no-deps
env:
RUSTDOCFLAGS: -D warnings
mutants:
continue-on-error: true
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
- uses: dtolnay/rust-toolchain@master
with:
toolchain: stable
- uses: Swatinem/rust-cache@v2
- run: sudo apt-get install -y libc6-dev
- name: Install cargo-show-asm and cargo-mutants
run: |
cargo install cargo-show-asm --locked
cargo install cargo-mutants --locked
- name: Run mutation testing on changed runtime files
run: |
if git diff origin/main --name-only -- piano-runtime/src/ | grep -q .; then
set +e
cargo mutants --package piano-runtime --in-diff <(git diff origin/main -- piano-runtime/src/) --jobs 4 --timeout 120 --features _test_internals
rc=$?
set -e
# Exit 0 = all caught, 2 = unviable, 3 = timeouts (acceptable).
# Exit 4 = missed mutants (real failure).
if [ "$rc" -eq 4 ]; then
echo "::error::Missed mutants detected (exit code 4)"
exit 1
fi
else
echo "No piano-runtime/src/ changes, skipping mutation testing"
fi