CMD-Action

GitHub action which provides interfaces for executing pre-defined commands on GitHub Actions.

How it works

CMD-Action executes arbitrary commands on GitHub Actions from commands in pull request comments.

Configuration

Create a file named .github/workflows/cmd-action.yml and add the following:

name: Command-Action

on:
  pull_request:
  issue_comment:
    types: [created]

jobs:
  cmd-check:
    runs-on: ubuntu-latest
    outputs:
      commands: ${{ steps.command.outputs.commands }}
      branch: ${{ steps.command.outputs.branch }}
    name: Bot
    steps:
      - uses: paritytech/cmd-action/check@main
        id: command

  cmd-run:
    needs: [cmd-check]
    if: ${{ github.event.issue.pull_request }}
    continue-on-error: true
    runs-on: ubuntu-latest
    strategy:
      matrix:
        command: ${{ fromJson(needs.cmd-check.outputs.commands) }}
    name: Run command
    steps:
      - name: Generate token
        id: generate_token
        uses: actions/create-github-app-token@v1.9.2
        with:
          app-id: ${{ secrets.CMD_APP_ID }}
          private-key: ${{ secrets.CMD_APP_KEY }}
      - uses: paritytech/cmd-action/run@main
        with:
          branch: ${{ needs.cmd-check.outputs.branch }}
          command: ${{ matrix.command.command }}
          name: ${{ matrix.command.name }}
          pr-number: ${{ github.event.issue.number || github.event.pull_request.number }}
          # If you want to push from a specific account (and trigger PR checks)
          token: ${{ steps.generate_token.outputs.token }}
        # If you need to push your changes you can do so like this
      - uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: cmd-action - changes
          branch: ${{ needs.cmd-check.outputs.branch }}
          pr-number: ${{ github.event.issue.number || github.event.pull_request.number }}
    conclude:
      runs-on: ubuntu-latest
      name: Run completed
      needs: [cmd-run] # It will only run if all the runs were completed
      steps:
      - name: Report Success
        shell: bash
        run: gh pr comment $NUMBER --repo ${{ github.repository }} --body "Completed action run. See logs <a href=\"$RUN\">here</a>."
        env:
          RUN: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
          GH_TOKEN: ${{ github.token }}
          NUMBER: ${{ github.event.issue.number || github.event.pull_request.number }}

Inputs

You can find all the inputs in the action file, but let's walk through each one of them:

• commands-directory: Location of the commands configuration files.
  • Optional: Defaults to ./github/commands .
  • Make sure that this directory contains the commands extension as .yml (not .yaml)