bump-up-pr.yml

name: Bump Go version and Dependencies

on:
  workflow_dispatch:
  # push:
  #   branches:
  #     - <main>
  schedule:
    # Runs at 00:00 UTC on the 1st day of every month
    - cron: "0 0 1 * *"

jobs:
  bump:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      # Find the latest stable Go version
      - name: Get latest Go version
        id: go-version
        run: |
          # Fetch the latest stable Go version, e.g. "1.25.4"
          LATEST=$(curl -s https://go.dev/VERSION?m=text | head -n1 | sed 's/go//')
          # Trim it down to major.minor (e.g. "1.25")
          MAJMIN=$(echo "$LATEST" | cut -d. -f1,2)
          echo "version=$MAJMIN" >> $GITHUB_OUTPUT

      - name: Show detected Go version
        run: echo "Latest Go version is ${{ steps.go-version.outputs.version }}"

      # Update go.mod 'go' directive if needed
      - name: Update go.mod Go version
        run: |
          CURRENT=$(grep '^go ' go.mod | awk '{print $2}')
          NEW=${{ steps.go-version.outputs.version }}
          if [ "$CURRENT" != "$NEW" ]; then
            echo "Updating Go version from $CURRENT to $NEW"
            sed -i "s/^go .*/go $NEW/" go.mod
          else
            echo "Go version already up-to-date ($CURRENT)"
          fi

      # Update dependencies
      - name: Update dependencies
        run: |
          go get -u ./...
          go mod tidy

      # Try building the project
      - name: Build project
        id: build
        continue-on-error: true
        run: |
          echo "Running go build..."
          if go build ./...; then
            echo "build_status=success" >> $GITHUB_OUTPUT
            echo "✅ Build succeeded"
          else
            echo "build_status=failure" >> $GITHUB_OUTPUT
            echo "❌ Build failed"
          fi

      # Commit and open PR
      - name: Create PR
        id: cpr
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: "Bumping up golang version and dependencies"
          title: "Bump up golang version and dependencies"
          branch: "chore/go-bump"
          body: |
            This PR updates the Go toolchain version and all dependencies.

            **Build status:** ${{ steps.build.outputs.build_status == 'success' && '✅ Successful' || '❌ Failed' }}

            ---
            _Automated bump workflow run by GitHub Actions._

      # Add label based on build result
      - name: Add PR label
        if: steps.cpr.outputs.pull-request-number != ''
        uses: actions-ecosystem/action-add-labels@v1
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          number: ${{ steps.cpr.outputs.pull-request-number }}
          labels: ${{ steps.build.outputs.build_status == 'success' && 'ready to merge' || 'breaking change' }}