javascript/.github/workflows/dependabot-changeset.yml at main · knocklabs/javascript · GitHub

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name: Dependabot Changeset

on:
  pull_request:
    types: [opened]
  workflow_dispatch:
    inputs:
      pr-number:
        description: "Pull request number to add a changeset for"
        required: true
        type: string

permissions:
  contents: write
  pull-requests: read

jobs:
  changeset:
    name: Add changeset for dependency update
    runs-on: ubuntu-latest
    if: github.actor == 'dependabot[bot]' || github.event_name == 'workflow_dispatch'

    steps:
      - name: Get PR metadata
        id: pr
        env:
          GH_TOKEN: ${{ secrets.KNOCK_ENG_BOT_GITHUB_TOKEN }}
          EVENT_NAME: ${{ github.event_name }}
          INPUT_PR_NUMBER: ${{ inputs.pr-number }}
          REPO: ${{ github.repository }}
          PR_NUMBER_FROM_EVENT: ${{ github.event.pull_request.number }}
          PR_TITLE_FROM_EVENT: ${{ github.event.pull_request.title }}
          PR_REF_FROM_EVENT: ${{ github.event.pull_request.head.ref }}
        run: |
          if [ "$EVENT_NAME" = "workflow_dispatch" ]; then
            PR_JSON=$(gh pr view "$INPUT_PR_NUMBER" --repo "$REPO" --json title,headRefName)
            echo "number=$INPUT_PR_NUMBER" >> "$GITHUB_OUTPUT"
            echo "title=$(echo "$PR_JSON" | jq -r '.title')" >> "$GITHUB_OUTPUT"
            echo "ref=$(echo "$PR_JSON" | jq -r '.headRefName')" >> "$GITHUB_OUTPUT"
          else
            echo "number=$PR_NUMBER_FROM_EVENT" >> "$GITHUB_OUTPUT"
            echo "title=$PR_TITLE_FROM_EVENT" >> "$GITHUB_OUTPUT"
            echo "ref=$PR_REF_FROM_EVENT" >> "$GITHUB_OUTPUT"
          fi

      # Checkout the PR branch for package.json analysis and committing.
      - name: Checkout PR branch
        uses: actions/checkout@v4
        with:
          ref: ${{ steps.pr.outputs.ref }}
          token: ${{ secrets.KNOCK_ENG_BOT_GITHUB_TOKEN }}
          fetch-depth: 2

      # Checkout the trusted script from main into a subdirectory.
      # This ensures we never execute code from an untrusted PR branch
      # when triggered via workflow_dispatch.
      - name: Checkout trusted script from main
        uses: actions/checkout@v4
        with:
          ref: main
          sparse-checkout: .github/scripts
          path: .trusted

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version-file: "package.json"

      - name: Detect affected packages and create changeset
        id: changeset
        env:
          PR_TITLE: ${{ steps.pr.outputs.title }}
          PR_NUMBER: ${{ steps.pr.outputs.number }}
        run: node .trusted/.github/scripts/dependabot-changeset.js

      - name: Commit and push changeset
        if: steps.changeset.outputs.created == 'true'
        run: |
          git config user.name "knock-eng-bot"
          git config user.email "knock-eng-bot@users.noreply.github.com"
          git add .changeset/
          git commit -m "chore(deps): add changeset for dependency update"
          git push