调用外部GitHub Actions工作流前，如何正确修改输入参数？

核心问题是未在deploy job中显式声明outputs，导致其他job无法读取该job的步骤输出。以下是修正后的配置：

修改后的deployment.yml #

on:
  workflow_call:
    inputs:
      runTests:
        description: 'Run tests'
        required: false
        default: false
        type: boolean
      testTags:
        description: 'Tags to run tests with'
        required: false
        type: string

jobs:
  deploy:
    runs-on: company-runner
    # 1. 显式声明job的输出变量
    outputs:
      testTags: ${{ steps.set-test-tags.outputs.testTags }}
    steps:
      - name: Set test tags
        id: set-test-tags  # 2. 给步骤添加ID，用于引用其输出
        if: ${{ inputs.runTests }}
        run: |
          if [[ <dev env condition> ]]; then
            echo "testTags=@dev and ${{ inputs.testTags }}" >> $GITHUB_OUTPUT
          elif [[ <qa env condition> ]]; then
            echo "testTags=@qa and ${{ inputs.testTags }}" >> $GITHUB_OUTPUT
          elif [[ <prod condition> ]]; then
            echo "testTags=@prod and ${{ inputs.testTags }}" >> $GITHUB_OUTPUT
          else
            echo "testTags=${{ inputs.testTags }}" >> $GITHUB_OUTPUT
          fi
  
  functional-test:
    needs: deploy
    uses: ourdomain/testrepo/path/to/tests.yml@main
    if: ${{ inputs.runTests }}
    with:
      # 3. 通过needs引用deploy job的输出
      TAGS: ${{ needs.deploy.outputs.testTags }}
    secrets: inherit

关键说明 #

1. 必须显式声明job outputs：只有在job中定义了outputs字段，该job的输出才能被其他依赖它的job访问
2. 步骤需要设置ID：通过步骤ID（steps.set-test-tags）引用步骤的输出，再映射到job的outputs中
3. 使用标准输出方式：echo "key=value" >> $GITHUB_OUTPUT是GitHub Actions当前推荐的设置步骤输出的方式，旧的::set-output命令已被弃用
4. 逻辑保持一致：确保环境判断条件（<dev env condition>等）能正确匹配部署环境，生成符合预期的testTags值

内容的提问来源于stack exchange，提问作者Working Title