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# This workflow runs whenever a PR is opened or updated, or a commit is pushed to main. It runs
# several checks:
# - fmt: checks that the code is formatted according to rustfmt
# - clippy: checks that the code does not contain any clippy warnings
# - doc: checks that the code can be documented without errors
# - hack: check combinations of feature flags
# - msrv: check that the msrv specified in the crate is correct
permissions:
contents: read
# This configuration allows maintainers of this repo to create a branch and pull request based on
# the new branch. Restricting the push trigger to the main branch ensures that the PR only gets
# built once.
on:
push:
branches:
pull_request:
# If new code is pushed to a PR branch, then cancel in progress workflows for that PR. Ensures that
# we don't waste CI time, and returns results quicker https://github.com/jonhoo/rust-ci-conf/pull/5
concurrency:
group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
cancel-in-progress: true
name: check
jobs:
fmt:
runs-on: ubuntu-latest
name: stable / fmt
steps:
- uses: actions/checkout@v4
with:
submodules: true
- name: Install stable
uses: dtolnay/rust-toolchain@stable
with:
components: rustfmt
- name: cargo fmt --check
run: cargo fmt --check
clippy:
runs-on: ubuntu-latest
name: ${{ matrix.toolchain }} / clippy
permissions:
contents: read
checks: write
strategy:
fail-fast: false
matrix:
# Get early warning of new lints which are regularly introduced in beta channels.
toolchain:
steps:
- uses: actions/checkout@v4
with:
submodules: true
- name: Install ${{ matrix.toolchain }}
uses: dtolnay/rust-toolchain@master
with:
toolchain: ${{ matrix.toolchain }}
components: clippy
- name: cargo clippy
uses: giraffate/clippy-action@v1
with:
reporter: "github-pr-check"
github_token: ${{ secrets.GITHUB_TOKEN }}
semver:
runs-on: ubuntu-latest
name: semver
steps:
- uses: actions/checkout@v4
with:
submodules: true
- name: Install stable
uses: dtolnay/rust-toolchain@stable
with:
components: rustfmt
- name: cargo-semver-checks
uses: obi1kenobi/cargo-semver-checks-action@v2
doc:
# run docs generation on nightly rather than stable. This enables features like
# https://doc.rust-lang.org/beta/unstable-book/language-features/doc-cfg.html which allows an
# API be documented as only available in some specific platforms.
runs-on: ubuntu-latest
name: nightly / doc
steps:
- uses: actions/checkout@v4
with:
submodules: true
- name: Install nightly
uses: dtolnay/rust-toolchain@nightly
- name: cargo doc
run: cargo doc --no-deps --all-features
env:
RUSTDOCFLAGS: --cfg docsrs
hack:
# cargo-hack checks combinations of feature flags to ensure that features are all additive
# which is required for feature unification
runs-on: ubuntu-latest
name: ubuntu / stable / features
steps:
- uses: actions/checkout@v4
with:
submodules: true
- name: Install stable
uses: dtolnay/rust-toolchain@stable
- name: cargo install cargo-hack
uses: taiki-e/install-action@cargo-hack
# intentionally no target specifier; see https://github.com/jonhoo/rust-ci-conf/pull/4
# --feature-powerset runs for every combination of features
- name: cargo hack
run: cargo hack --feature-powerset check
msrv:
# check that we can build using the minimal rust version that is specified by this crate
runs-on: ubuntu-latest
# we use a matrix here just because env can't be used in job names
# https://docs.github.com/en/actions/learn-github-actions/contexts#context-availability
strategy:
matrix:
msrv:
name: ubuntu / ${{ matrix.msrv }}
steps:
- uses: actions/checkout@v4
with:
submodules: true
- name: Install ${{ matrix.msrv }}
uses: dtolnay/rust-toolchain@master
with:
toolchain: ${{ matrix.msrv }}
- name: cargo +${{ matrix.msrv }} check
run: cargo check