gitversion-rs 0.2.0

name: Release Draft

on:
  push:
    tags: ["v*"]

permissions:
  contents: write

env:
  CARGO_TERM_COLOR: always

jobs:
  release:
    name: Create draft release
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.gv.outputs.SemVer }}
      tag: ${{ steps.meta.outputs.tag }}
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ github.ref }}
          fetch-depth: 0

      - name: Fetch main branch
        run: git fetch origin +refs/heads/main:refs/heads/main 2>/dev/null || true

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

      - uses: Swatinem/rust-cache@v2

      - name: Build gitversion-rs (bootstrap)
        run: cargo build --release --bin gitversion-rs

      - name: Compute version
        run: ./target/release/gitversion-rs --output build-server

      - name: Export version output
        id: gv
        run: echo "SemVer=${GitVersion_SemVer}" >> "$GITHUB_OUTPUT"

      - name: Set tag metadata
        id: meta
        run: echo "tag=${{ github.ref_name }}" >> "$GITHUB_OUTPUT"

      - name: Install git-cliff
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          CLIFF_TAG=$(gh release view --repo orhun/git-cliff --json tagName -q .tagName)
          gh release download "$CLIFF_TAG" --repo orhun/git-cliff \
            --pattern "git-cliff-*-x86_64-unknown-linux-musl.tar.gz" \
            --dir /tmp/cliff
          tar xzf /tmp/cliff/git-cliff-*-x86_64-unknown-linux-musl.tar.gz -C /tmp/cliff
          find /tmp/cliff -maxdepth 2 -name "git-cliff" -type f \
            -exec sudo install -m 0755 {} /usr/local/bin/git-cliff \;
          git-cliff --version

      - name: Generate changelog
        env:
          TAG: ${{ steps.meta.outputs.tag }}
        run: git-cliff --tag "$TAG" --output CHANGELOG.md

      - name: Create or update GitHub draft release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ steps.meta.outputs.tag }}
          VERSION: ${{ steps.gv.outputs.SemVer }}
        run: |
          if gh release view "$TAG" >/dev/null 2>&1; then
            gh release edit "$TAG" --draft --title "v${VERSION}" --notes-file CHANGELOG.md
          else
            gh release create "$TAG" --draft --title "v${VERSION}" --notes-file CHANGELOG.md
          fi

  build:
    name: Build (${{ matrix.target }})
    needs: release
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - { target: x86_64-unknown-linux-gnu,   os: ubuntu-latest }
          - { target: aarch64-unknown-linux-gnu,  os: ubuntu-latest }
          - { target: x86_64-unknown-linux-musl,  os: ubuntu-latest }
          - { target: x86_64-apple-darwin,        os: macos-latest }
          - { target: aarch64-apple-darwin,       os: macos-latest }
          - { target: x86_64-pc-windows-msvc,     os: windows-latest }
    steps:
      - uses: actions/checkout@v4
        with:
          ref: refs/tags/${{ needs.release.outputs.tag }}

      - name: Inject version into Cargo.toml
        shell: bash
        env:
          GV_VERSION: ${{ needs.release.outputs.version }}
        run: |
          python3 - "$GV_VERSION" <<'PY'
          import re, sys
          v = sys.argv[1]
          s = open("Cargo.toml", encoding="utf-8").read()
          s = re.sub(r'(?m)^version = "[^"]*"', f'version = "{v}"', s, count=1)
          open("Cargo.toml", "w", encoding="utf-8").write(s)
          print(f"Cargo.toml version set to {v}")
          PY

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

      - uses: Swatinem/rust-cache@v2

      - name: Build and upload
        uses: taiki-e/upload-rust-binary-action@v1
        with:
          bin: gitversion-rs
          target: ${{ matrix.target }}
          include: README.md,README.ko.md,README.ja.md,README.zh.md,LICENSE
          archive: gitversion-rs-$tag-$target
          token: ${{ secrets.GITHUB_TOKEN }}

  sign:
    name: Sign release artifacts
    needs: [release, build]
    runs-on: ubuntu-latest
    permissions:
      id-token: write
      contents: write
    steps:
      - name: Install cosign
        uses: sigstore/cosign-installer@v3

      - name: Download artifacts
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ needs.release.outputs.tag }}
        run: |
          mkdir -p /tmp/artifacts
          gh release download "$TAG" --repo "$GITHUB_REPOSITORY" \
            --pattern "*.tar.gz" --pattern "*.zip" --dir /tmp/artifacts

      - name: Generate checksums
        working-directory: /tmp/artifacts
        run: sha256sum gitversion-rs-* > checksums.txt

      - name: Sign checksums
        working-directory: /tmp/artifacts
        run: cosign sign-blob --yes checksums.txt --bundle checksums.txt.sigstore.json

      - name: Upload checksums and signature
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ needs.release.outputs.tag }}
        run: |
          gh release upload "$TAG" --repo "$GITHUB_REPOSITORY" --clobber \
            /tmp/artifacts/checksums.txt /tmp/artifacts/checksums.txt.sigstore.json