release.yml

name: Release

on:
  push:
    tags:
      - '*'

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Get latest release tag
        id: latesttag
        run: |
          CURRENT_VERSION=$(gh release list --limit 1 --json version | jq .[0].tagName | tr -d '"')
          echo "CURRENT_VERSION=$CURRENT_VERSION" >> $GITHUB_ENV

      - name: Validate new version
        run: |
          NEW_VERSION=${GITHUB_REF#refs/tags/}
          if ! [[ $NEW_VERSION =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            echo "The new tag $NEW_VERSION is not a valid semantic version"
            exit 1
          fi
          if [[ $(printf '%s\n' "$NEW_VERSION" "$CURRENT_VERSION" | sort -V | head -n1) != "$CURRENT_VERSION" ]]; then
            echo "The new version $NEW_VERSION is not greater than the current version $CURRENT_VERSION"
            exit 1
          fi
          echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV

      - name: Archive sources
        run: |
          tar czvf release.tar.gz Sources BUILD.bazel repositories.bzl MODULE.bazel

      - name: Calculate SHA256
        run: |
          echo "SHA256=$(shasum -a 256 release.tar.gz | cut -d ' ' -f 1)" >> $GITHUB_ENV

      - name: Create Release
        run: |
          set -euo pipefail

          git config user.name "Release Workflow"
          git config user.email "noreply@github.com"

          gh release create "${{ github.ref }}" \
            --title "${{ github.ref }}" \
            --target "$GITHUB_REF_NAME" \
            --generate-notes \
            --prerelease \
            --notes "
            ### Bzlmod Snippet

            ```bzl
            bazel_dep(name = "bazelpods", version = "$new_version")
            ```

            ## Workspace Snippet
            ```starlark
            http_archive(
              name = \"bazelpods\",
              sha256 = \"${{ env.SHA256 }}\",
              url = \"https://github.com/sergeykhliustin/BazelPods/releases/download/${{ env.NEW_VERSION }}/release.tar.gz\"
            )
            load(\"@bazelpods//:repositories.bzl\", \"bazelpods_dependencies\")
            bazelpods_dependencies()
            ```" \
            "release.tar.gz"