【GitHubActions】マトリックスを利用してScriptを実行する

概要

マトリックスを利用して、冗長性のあるワークフローをすっきりさせました。

元のコード

name: Sequential Workflow

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  validation:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4.1.7

      - name: Set up validation script permissions
        run: chmod +x .github/scripts/validation.sh

      - name: Run validation script
        run: ./.github/scripts/validation.sh

  setup:
    runs-on: ubuntu-latest
    needs: validation
    steps:
      - name: Checkout code
        uses: actions/checkout@v4.1.7

      - name: Set up setup script permissions
        run: chmod +x .github/scripts/set-up.sh

      - name: Run setup script
        run: ./.github/scripts/set-up.sh

  deploy:
    runs-on: ubuntu-latest
    needs: setup
    steps:
      - name: Checkout code
        uses: actions/checkout@v4.1.7

      - name: Set up deploy script permissions
        run: chmod +x .github/scripts/deploy.sh

      - name: Run deploy script
        run: ./.github/scripts/deploy.sh

matrixを利用したコード

name: Matrix Workflow

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  example_matrix:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        script: [validation, set-up, deploy]
    steps:
      - name: Checkout code
        uses: actions/checkout@v4.1.7

      - name: Set up script permissions
        run: chmod +x .github/scripts/${{ matrix.script }}.sh

      - name: Run script
        run: ./.github/scripts/${{ matrix.script }}.sh

まとめ

    strategy:
      matrix:
        script: [validation, set-up, deploy]

上記のワークフローのリストにある validation, set-up, deployを
下記の ${{ matrix.script }} に順番に代入し、実行しています。

    - name: Set up script permissions
        run: chmod +x .github/scripts/${{ matrix.script }}.sh

これで冗長性のあるワークフローを短くまとめることができます。