release.yml

name: Release

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      version:
        description: 'Version to release (e.g., 0.2.0)'
        required: true

permissions:
  contents: write

env:
  CARGO_TERM_COLOR: always

jobs:
  test:
    name: Run Tests
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

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

      - name: Verify release metadata
        run: |
          if [ -n "${{ github.event.inputs.version }}" ]; then
            EXPECTED_VERSION="${{ github.event.inputs.version }}"
          else
            EXPECTED_VERSION="${GITHUB_REF#refs/tags/v}"
          fi

          MANIFEST_VERSION=$(sed -n 's/^version = "\(.*\)"/\1/p' Cargo.toml | head -1)
          if [ "$MANIFEST_VERSION" != "$EXPECTED_VERSION" ]; then
            echo "::error::Cargo.toml version ${MANIFEST_VERSION} does not match release version ${EXPECTED_VERSION}"
            exit 1
          fi

          cargo metadata --locked --format-version 1 >/dev/null

      - name: Cache cargo
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

      - name: Check formatting
        run: cargo fmt --all -- --check

      - name: Run clippy
        run: cargo clippy --locked --all-targets --all-features -- -D warnings

      - name: Build
        run: cargo build --locked --all-features --release

      - name: Run all tests
        run: cargo test --locked --all-features

      - name: Run integration tests
        run: cargo test --locked --all-features --test '*'

  create-release:
    name: Create GitHub Release
    runs-on: ubuntu-latest
    needs: [test]
    outputs:
      version: ${{ steps.version.outputs.version }}

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Get version
        id: version
        run: |
          if [ -n "${{ github.event.inputs.version }}" ]; then
            echo "version=${{ github.event.inputs.version }}" >> $GITHUB_OUTPUT
          else
            echo "version=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
          fi

      - name: Generate changelog
        id: changelog
        run: |
          # Get commits since last tag
          PREV_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
          if [ -n "$PREV_TAG" ]; then
            CHANGELOG=$(git log --pretty=format:"* %s (%h)" $PREV_TAG..HEAD)
          else
            CHANGELOG=$(git log --pretty=format:"* %s (%h)" -20)
          fi
          echo "changelog<<EOF" >> $GITHUB_OUTPUT
          echo "$CHANGELOG" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Create Release
        uses: softprops/action-gh-release@v1
        with:
          name: v${{ steps.version.outputs.version }}
          body: |
            ## What's Changed

            ${{ steps.changelog.outputs.changelog }}

            ## Installation

            **Rust:**
            ```toml
            [dependencies]
            solverforge-maps = "${{ steps.version.outputs.version }}"
            ```
          draft: false
          prerelease: ${{ contains(steps.version.outputs.version, '-') }}