tzif-codec 0.1.4

name: Release

on:
  push:
    branches:
      - main
  workflow_dispatch:

permissions:
  contents: write

concurrency:
  group: release-main
  cancel-in-progress: false

jobs:
  release:
    runs-on: ubuntu-latest
    if: "${{ github.event_name != 'push' || !startsWith(github.event.head_commit.message, 'chore: prepare v') }}"

    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          ref: main
          fetch-depth: 0

      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy

      - name: Cache Rust builds
        uses: Swatinem/rust-cache@v2
        with:
          cache-bin: true

      - name: Install release-plz
        run: cargo install release-plz --locked

      - name: Test
        run: cargo test --all-targets

      - name: Lint
        run: cargo clippy --all-targets -- -D warnings

      - name: Configure git
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"

      - name: Update version and changelog
        run: release-plz update

      - name: Create release commit
        run: |
          if git diff --quiet; then
            echo "No release changes."
            exit 0
          fi

          version="$(cargo metadata --no-deps --format-version 1 | jq -r '.packages[] | select(.name == "tzif-codec") | .version')"

          git add Cargo.lock Cargo.toml CHANGELOG.md
          git commit -m "chore: prepare v${version} release"

      - name: Push release commit
        run: |
          if git diff --quiet HEAD origin/main; then
            echo "No release commit to push."
            exit 0
          fi

          git push origin main