version_bump.yml

name: Version bump

on:
  push:
    tags:
      - v[0-9]+.[0-9]+.[0-9]+
  workflow_dispatch:
    inputs:
      version:
        description: "The version to bump the Ruby LSP to (e.g.: 0.1.0)"
        type: string
        required: true

jobs:
  publish:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        name: Checkout

      - name: Set up Ruby
        uses: ruby/setup-ruby@d5126b9b3579e429dd52e51e68624dda2e05be25 # v1.267.0
        with:
          bundler-cache: true
          cache-version: 1

      - name: Automated patch version bump
        if: ${{ inputs.version == '' }}
        id: version
        run: |
          version=$(ruby -e 'major, minor, patch = File.read("VERSION").split(".").map(&:to_i)
                    new_version = "#{major}.#{minor}.#{patch + 1}"
                    File.write("VERSION", "#{new_version}\n")
                    print(new_version)')

          bundle config unset deployment
          bundle install
          echo "VERSION=$version" >> "$GITHUB_OUTPUT"

      - name: Manual version bump
        if: ${{ inputs.version != '' }}
        run: |
          echo "${{ inputs.version }}" > VERSION
          bundle config unset deployment
          bundle install

      - name: Commit version
        run: |
          version="${{ inputs.version != '' && inputs.version || steps.version.outputs.VERSION }}"
          git config user.name github-actions
          git config user.email github-actions@github.com
          git checkout -b automated-bump-version-$version
          git add VERSION Gemfile.lock
          git commit -m "Bump version to v$version"
          git push origin automated-bump-version-$version

      - name: Open pull request and turn on auto-merge
        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
        id: open-pr
        with:
          github-token: "${{ secrets.RUBY_LSP_BOT_TOKEN }}"
          result-encoding: string
          script: |
            const version="${{ inputs.version != '' && inputs.version || steps.version.outputs.VERSION }}"
            const response = await github.rest.pulls.create({
              owner: context.repo.owner,
              repo: context.repo.repo,
              head: `automated-bump-version-${version}`,
              base: "main",
              title: `Bump version to v${version}`,
              body: `This is an automated pull request to eagerly bump the gem version to v${version}.`
            });

            const pullRequestNumber = response.data.number;
            console.log(`Created pull request ${pullRequestNumber}`);
            return pullRequestNumber;

      - name: Approve pull request
        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
        with:
          github-token: "${{ secrets.GITHUB_TOKEN }}"
          script: |
            const pullRequestNumber = ${{steps.open-pr.outputs.result}};
            const getPullRequestIdQuery = `query GetPullRequestId($owner: String!, $repo: String!, $pullRequestNumber: Int!) {
              repository(owner: $owner, name: $repo) {
                pullRequest(number: $pullRequestNumber) {
                  id
                }
              }
            }`

            const repoInfo = {
              owner: context.repo.owner,
              repo: context.repo.repo,
              pullRequestNumber: pullRequestNumber,
            }

            await github.rest.pulls.createReview({
              pull_number: pullRequestNumber,
              owner: context.repo.owner,
              repo: context.repo.repo,
              event: 'APPROVE',
            })
            console.log(`Approved pull request ${pullRequestNumber}`);

            const enableAutoMergeQuery = `mutation ($pullRequestId: ID!, $mergeMethod: PullRequestMergeMethod!) {
              enablePullRequestAutoMerge(input: {
                pullRequestId: $pullRequestId,
                mergeMethod: $mergeMethod
              }) {
                pullRequest {
                  autoMergeRequest {
                    enabledAt
                    enabledBy {
                      login
                    }
                  }
                }
              }
            }`

            const response = await github.graphql(getPullRequestIdQuery, repoInfo)
            const data = {
              pullRequestId: response.repository.pullRequest.id,
              mergeMethod: 'MERGE',
            }

            await github.graphql(enableAutoMergeQuery, data)
            console.log(`Enabled auto-merge for pull request ${pullRequestNumber}`);
            await github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: pullRequestNumber,
              labels: ["chore"],
            });