bump_version.yml

name: Version Management

on:
  pull_request:
    types: [closed]
    branches: [ master ]

jobs:
  version-bump:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
      checks: write
    outputs:
      NEEDS_BUMP: ${{ steps.check-changes.outputs.needs_bump }}
      NEW_VERSION: ${{ steps.version-update.outputs.new_version }}

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Check for non-plugin changes
        id: check-changes
        run: |
          CHANGED_FILES=$(git diff --name-only ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }})
          NEEDS_VERSION_BUMP=false
          
          # ensure PR wasn't plugin-only
          echo "Changed files:"
          for file in $CHANGED_FILES; do
            echo "- $file"
            if [[ $file != brainscore_vision/benchmarks/* && 
                  $file != brainscore_vision/data/* && 
                  $file != brainscore_vision/metrics/* && 
                  $file != brainscore_vision/models/* ]]; then
              NEEDS_VERSION_BUMP=true
              echo "Found change requiring version bump: $file"
            fi
          done
          
          echo "needs_bump=$NEEDS_VERSION_BUMP" >> $GITHUB_OUTPUT
          
      - name: Set up Python
        if: steps.check-changes.outputs.needs_bump == 'true'
        uses: actions/setup-python@v4
        with:
          python-version: '3.11'

      - name: Install bump-my-version
        if: steps.check-changes.outputs.needs_bump == 'true'
        run: pip install bump-my-version

      - name: Configure Git
        if: steps.check-changes.outputs.needs_bump == 'true'
        run: |
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"
          
      - name: Determine version bump type
        if: steps.check-changes.outputs.needs_bump == 'true'
        id: bump-type
        run: |
          if [[ ${{ contains(github.event.pull_request.labels.*.name, 'major update') }} == true ]]; then
            echo "type=major" >> $GITHUB_OUTPUT
          elif [[ ${{ contains(github.event.pull_request.labels.*.name, 'minor update') }} == true ]]; then
            echo "type=minor" >> $GITHUB_OUTPUT
          else
            echo "type=patch" >> $GITHUB_OUTPUT
          fi
          
      - name: Create version bump branch and PR
        id: version-update
        if: steps.check-changes.outputs.needs_bump == 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          # Create and checkout new branch
          BRANCH_NAME="version-bump-${{ github.event.pull_request.head.sha }}"
          git checkout -b $BRANCH_NAME

          # Get latest version from tags
          LATEST_TAG=$(git tag --sort=-version:refname | head -n1)
          CURRENT_VERSION=${LATEST_TAG#v}  # Remove 'v' prefix
          echo "Latest tag: $LATEST_TAG (version: $CURRENT_VERSION)"
          
          # Bump version
          echo "Bumping version..."
          bump-my-version bump --current-version $CURRENT_VERSION ${{ steps.bump-type.outputs.type }} --config-file pyproject.toml --verbose
          
          echo "Version after bump:"
          bump-my-version show current_version
          NEW_VERSION=$(bump-my-version show current_version)
          echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT
          
          # Push the branch with tags
          git push origin $BRANCH_NAME --follow-tags
          git push origin $BRANCH_NAME:refs/heads/$BRANCH_NAME --force
          
          # Create PR and extract PR number
          PR_URL=$(gh pr create --title "chore: bump version to $NEW_VERSION" \
             --body "Automated version bump triggered by changes in PR #${{ github.event.pull_request.number }}" \
             --base master \
             --head $BRANCH_NAME \
             --label "version-bump")
          PR_NUMBER=$(echo $PR_URL | grep -oE '[0-9]+$')
          echo "pr_number=$PR_NUMBER" >> $GITHUB_OUTPUT

      - name: Auto-approve PR
        if: steps.version-update.outputs.pr_number
        uses: hmarr/auto-approve-action@v4
        with:
          pull-request-number: ${{ steps.version-update.outputs.pr_number }}
          github-token: ${{ secrets.APPROVAL_TOKEN }}

      - name: Wait for status checks
        if: steps.version-update.outputs.pr_number
        uses: lewagon/wait-on-check-action@v1.3.1
        with:
          ref: version-bump-${{ github.event.pull_request.head.sha }}
          repo-token: ${{ secrets.GITHUB_TOKEN }}
          wait-interval: 10
          allowed-conclusions: success,skipped
          verbose: true

      - name: Merge PR
        if: steps.version-update.outputs.pr_number
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          pr_number="${{ steps.version-update.outputs.pr_number }}"
          echo "Merging PR #$pr_number"
          gh pr merge $pr_number --auto --squash

  create-release:
    needs: version-bump
    runs-on: ubuntu-latest
    if: needs.version-bump.outputs.NEEDS_BUMP == 'true'
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Generate Release Notes
        id: release_notes
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          # Get previous tag
          PREVIOUS_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
          NEW_VERSION="${{ needs.version-bump.outputs.NEW_VERSION }}"
          
          # Generate release notes using GitHub API
          if [ -n "$PREVIOUS_TAG" ]; then
            gh api \
              --method POST \
              -H "Accept: application/vnd.github+json" \
              /repos/${{ github.repository }}/releases/generate-notes \
              -f tag_name="v$NEW_VERSION" \
              -f target_commitish="${{ github.sha }}" \
              -f previous_tag_name="$PREVIOUS_TAG" \
              > release_notes.json
          else
            gh api \
              --method POST \
              -H "Accept: application/vnd.github+json" \
              /repos/${{ github.repository }}/releases/generate-notes \
              -f tag_name="v$NEW_VERSION" \
              -f target_commitish="${{ github.sha }}" \
              > release_notes.json
          fi
          
          # Extract and save
          body=$(jq -r .body release_notes.json)
          echo "NOTES<<EOF" >> $GITHUB_OUTPUT
          echo "$body" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v1
        with:
          tag_name: v${{ needs.version-bump.outputs.NEW_VERSION }}
          name: v${{ needs.version-bump.outputs.NEW_VERSION }}
          body: ${{ steps.release_notes.outputs.NOTES }}
          draft: false
          prerelease: false
          generate_release_notes: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          
  publish:
    needs: version-bump
    if: needs.version-bump.outputs.NEEDS_BUMP == 'true'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      id-token: write

    steps:
      - name: Wait for Git operations to complete
        run: sleep 30
        
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          
      - name: Fetch latest master
        run: |
          git fetch origin master
          git checkout master
          git pull origin master

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.11'

      - name: Install build dependencies
        run: |
          python -m pip install --upgrade pip
          pip install build twine

      - name: Clean previous builds
        run: rm -rf dist/ build/
          
      - name: Build package
        run: python -m build

      - name: Verify package
        run: twine check dist/*

      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1