相关疑难解决方法(0)

我的 GitHub 工作流程如下所示：

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - run: echo "build"

  test:
    runs-on: ubuntu-latest
    needs: build

    steps:
      - run: echo "build"

  deploy:
    runs-on: ubuntu-latest
    needs: [build, test]

    steps:
      - run: echo "deploy"

现在，我想使该deploy步骤仅tests在分支为 时才需要该步骤main。

那可能吗？

本质上我想做这样的事情：

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - run: echo "build"

  test:
    runs-on: ubuntu-latest
    needs: build

    steps:
      - run: echo "build"

  deploy:
    runs-on: ubuntu-latest
    needs: contains(branch, "master") ? [build, test] : [build] #notice this line

    steps:
      - run: echo …

Github Actions是否有DRY方式在多个作业步骤中计算和共享值？

在下面的工作流程yml文件中，回显$ {GITHUB_REF} | cut -d'/'-f3`-$ {GITHUB_SHA}会分多个步骤重复。

name: Test, Build and Deploy
on:
  push:
    branches:
      - master
jobs:
  build_and_push:
    name: Build and Push
    runs-on: ubuntu-latest
    steps:
      - name: Docker Build
        uses: "actions/docker/cli@master"
        with:
          args: build . --file Dockerfile -t cflynnus/blog:`echo ${GITHUB_REF} | cut -d'/' -f3`-${GITHUB_SHA}
      - name: Docker Tag Latest
        uses: "actions/docker/cli@master"
        with:
          args: tag cflynnus/blog:`echo ${GITHUB_REF} | cut -d'/' -f3`-${GITHUB_SHA} cflynnus/blog:latest

在GitHub Actions中，我想评估bash表达式，然后将其分配给环境变量-

    - name: Tag image
      env:
        GITHUB_SHA_SHORT: ${{ $(echo $GITHUB_SHA | cut -c 1-6) }}
      ..do other things...

但是，这种幼稚的尝试失败了。根据文档，这似乎不受支持，但是稍微干净的解决方法就可以了。