ci: add CI and release workflows

CI runs fmt/clippy/test/build on every push and PR to main.
Release builds cross-platform binaries (linux x86_64/aarch64,
macOS x86_64/aarch64) and publishes a GitHub Release on tag push.

Co-Authored-By: Claude Opus 4.6 <[email protected]>

Author: copyleftdev

.github/workflows/ci.yml

@@ -0,0 +1,44 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  check:
+    name: Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rust stable
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+
+      - name: Cache cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-
+
+      - name: Check formatting
+        run: cargo fmt --all -- --check
+
+      - name: Clippy
+        run: cargo clippy --all-targets --all-features -- -D warnings
+
+      - name: Test
+        run: cargo test
+
+      - name: Build
+        run: cargo build

.github/workflows/release.yml

@@ -0,0 +1,94 @@
+name: Release
+
+on:
+  push:
+    tags: ["v*"]
+
+permissions:
+  contents: write
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    name: Build ${{ matrix.target }}
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - target: x86_64-unknown-linux-gnu
+            runner: ubuntu-latest
+            use_cross: false
+          - target: aarch64-unknown-linux-gnu
+            runner: ubuntu-latest
+            use_cross: true
+          - target: x86_64-apple-darwin
+            runner: macos-13
+            use_cross: false
+          - target: aarch64-apple-darwin
+            runner: macos-latest
+            use_cross: false
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rust stable
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+
+      - name: Cache cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-${{ matrix.target }}-cargo-${{ hashFiles('Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-${{ matrix.target }}-cargo-
+
+      - name: Install cross
+        if: matrix.use_cross
+        run: cargo install cross --git https://github.com/cross-rs/cross
+
+      - name: Build (native)
+        if: "!matrix.use_cross"
+        run: cargo build --release --target ${{ matrix.target }}
+
+      - name: Build (cross)
+        if: matrix.use_cross
+        run: cross build --release --target ${{ matrix.target }}
+
+      - name: Rename binary
+        run: cp target/${{ matrix.target }}/release/hookbin hookbin-${{ matrix.target }}
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: hookbin-${{ matrix.target }}
+          path: hookbin-${{ matrix.target }}
+
+  release:
+    name: Release
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
+
+      - name: Collect binaries and generate checksums
+        run: |
+          mkdir release
+          cp artifacts/hookbin-*/hookbin-* release/
+          cd release
+          sha256sum hookbin-* > SHA256SUMS
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          generate_release_notes: true
+          files: release/*

rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "stable"
+components = ["rustfmt", "clippy"]