chore: refactor write functions, improve CI, MSRV

.github/workflows/ci.yml

@@ -6,63 +6,106 @@ on:
   pull_request:
   workflow_dispatch:
 
-env:
-  CARGO_INCREMENTAL: 0
-  RUSTUP_MAX_RETRIES: 10
-  CARGO_NET_RETRY: 10
-  RUST_BACKTRACE: full
+defaults:
+  run:
+    shell: bash
 
 jobs:
-  fmt:
-    name: Rustfmt
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-      - run: rustup component add rustfmt
-      - run: cargo fmt --all -- --check
-
-  rust:
-    name: Rust
+  test:
+    name: Test
     runs-on: ${{ matrix.os }}
-
     strategy:
-      fail-fast: false
+      fail-fast: true
       matrix:
-        os: [ubuntu-latest]
-
+        os: [ ubuntu-latest ]
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v6
+      - uses: actions/checkout@v6
         with: { submodules: 'recursive' }
+      - if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
+        uses: Swatinem/rust-cache@v2
+      - uses: taiki-e/install-action@v2
+        with: { tool: 'just,cargo-binstall' }
+      - run: just ci-test
 
-      - name: Cache cargo registry
-        uses: actions/cache@v5
-        with:
-          path: ~/.cargo/registry
-          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-      - name: Cache cargo index
-        uses: actions/cache@v5
-        with:
-          path: ~/.cargo/git
-          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
-      - name: Cache cargo target dir
-        uses: actions/cache@v5
+  test-msrv:
+    name: Test MSRV
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+        with: { submodules: 'recursive' }
+      - if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
+        uses: Swatinem/rust-cache@v2
+      - uses: taiki-e/install-action@v2
+        with: { tool: 'just' }
+      - name: Read MSRV
+        id: msrv
+        run: echo "value=$(just get-msrv)" >> $GITHUB_OUTPUT
+      - name: Install MSRV Rust ${{ steps.msrv.outputs.value }}
+        uses: dtolnay/rust-toolchain@stable
         with:
-          path: target
-          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
+          toolchain: ${{ steps.msrv.outputs.value }}
+      - run: just ci_mode=0 ci-test-msrv  # Ignore warnings in MSRV
 
-      - name: Build
-        run: cargo build --workspace --all-features --all-targets --verbose
-      - name: Tests
-        run: cargo test --workspace --all-features --all-targets --verbose
+  coverage:
+    name: Code Coverage
+    if: github.event_name != 'release'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+        with: { submodules: 'recursive' }
+      - uses: Swatinem/rust-cache@v2
+      - uses: taiki-e/install-action@v2
+        with: { tool: 'just,cargo-llvm-cov' }
+      - name: Generate code coverage
+        run: just ci-coverage
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: target/llvm-cov/codecov.info
 
-      - name: Install Rust targets we use for embedded
-        run: rustup target install thumbv7em-none-eabihf
-      - name: Build for embedded
-        run: cargo build -p can-embedded --target=thumbv7em-none-eabihf --no-default-features
+  # This job checks if any of the previous jobs failed or were canceled.
+  # This approach also allows some jobs to be skipped if they are not needed.
+  ci-passed:
+    needs: [ test, test-msrv ]
+    if: always()
+    runs-on: ubuntu-latest
+    steps:
+      - name: Result of the needed steps
+        run: echo "${{ toJSON(needs) }}"
+      - if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+        run: exit 1
 
-      - name: Install clippy
-        run: rustup component add clippy
-      - name: Annotate commit with clippy warnings
-        if: startsWith(matrix.os, 'ubuntu')
-        run: cargo clippy --workspace --all-features --all-targets
+  # Release unpublished packages or create a PR with changes
+  release-plz:
+    needs: [ ci-passed ]
+    if: |
+      always()
+      && needs.ci-passed.result == 'success'
+      && github.event_name == 'push'
+      && github.ref == 'refs/heads/main'
+      && github.repository_owner == 'oxibus'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      id-token: write
+      pull-requests: write
+    concurrency:
+      group: release-plz-${{ github.ref }}
+      cancel-in-progress: false
+    steps:
+      - uses: actions/checkout@v6
+        with: { fetch-depth: 0 }
+      - uses: dtolnay/rust-toolchain@stable
+      - name: Publish to crates.io if crate's version is newer
+        uses: release-plz/action@v0.5
+        id: release
+        with: { command: release }
+        env:
+          GITHUB_TOKEN: ${{ secrets.RELEASE_PLZ_TOKEN }}
+      - if: ${{ steps.release.outputs.releases_created == 'false' }}
+        name: If version is the same, create a PR proposing new version and changelog for the next release
+        uses: release-plz/action@v0.5
+        with: { command: release-pr }
+        env:
+          GITHUB_TOKEN: ${{ secrets.RELEASE_PLZ_TOKEN }}