release.yml

# A release is a tag. Pushing v0.1.0 builds it, packages it and publishes it;
# nothing else does. An ordinary commit to master never ships anything.
name: Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

jobs:
  release:
    name: Release
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          fetch-depth: 0 # git describe needs the history behind the tag

      - name: Install SQLite
        run: sudo apt-get update && sudo apt-get install -y libsqlite3-dev

      - name: Setup V
        uses: vlang/setup-v@v1.7

      # The tag is what people will quote in a bug report and v.mod is what
      # 'gitlife version' prints. A release where they disagree is a release
      # nobody can identify.
      - name: Check the tag against v.mod
        run: |
          tag="${GITHUB_REF_NAME#v}"
          version="${tag%%-*}" # a v0.1.0-rc1 dry run still tests 0.1.0
          manifest=$(sed -n "s/^[[:space:]]*version:[[:space:]]*'\(.*\)'/\1/p" v.mod)
          echo "tag ${GITHUB_REF_NAME}, version ${version}, v.mod ${manifest}"
          test "${version}" = "${manifest}"

      # The commit, not 'git describe': on a tagged commit describe answers with
      # the tag, and 'gitlife v0.1.0 (v0.1.0)' tells nobody anything.
      - name: Build
        run: |
          GITLIFE_COMMIT=$(git rev-parse --short HEAD) \
            v -prod -o gitlife .
          ./gitlife version

      - name: Package
        run: |
          name="gitlife-${GITHUB_REF_NAME}-linux-amd64"
          mkdir "${name}"
          cp gitlife README.md LICENSE "${name}/"
          cp -r docs "${name}/"
          tar czf "${name}.tar.gz" "${name}"
          sha256sum "${name}.tar.gz" > "${name}.tar.gz.sha256"

      - name: Publish
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          # A tag carrying a suffix, v0.1.0-rc1, is a rehearsal and is published
          # as one.
          prerelease=""
          case "${GITHUB_REF_NAME}" in
            *-*) prerelease="--prerelease" ;;
          esac
          gh release create "${GITHUB_REF_NAME}" \
            --title "${GITHUB_REF_NAME}" \
            --generate-notes \
            ${prerelease} \
            gitlife-*.tar.gz gitlife-*.tar.gz.sha256