使用Github Actions是否有DRY方法可以在多个工作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
答案 0 :(得分:6)
set-output
可用于定义步骤的输出。然后可以在以后的步骤中使用输出,并在with
和env
输入节中对其进行评估。
以下是您的示例的外观。
name: Test, Build and Deploy
on:
push:
branches:
- master
jobs:
build_and_push:
name: Build and Push
runs-on: ubuntu-latest
steps:
- name: Set tag var
id: vars
run: echo ::set-output name=docker_tag::$(echo ${GITHUB_REF} | cut -d'/' -f3)-${GITHUB_SHA}
- name: Docker Build
uses: "actions/docker/cli@master"
with:
args: build . --file Dockerfile -t cflynnus/blog:${{ steps.vars.outputs.docker_tag }}
- name: Docker Tag Latest
uses: "actions/docker/cli@master"
with:
args: tag cflynnus/blog:${{ steps.vars.outputs.docker_tag }} cflynnus/blog:latest
这是另一个示例,显示了如何动态设置动作要使用的多个变量。
- name: Set output variables
id: vars
run: |
echo ::set-output name=pr_title::"[Test] Add report file $(date +%d-%m-%Y)"
echo ::set-output name=pr_body::"This PR was auto-generated on $(date +%d-%m-%Y) \
by [create-pull-request](https://github.com/peter-evans/create-pull-request)."
- name: Create Pull Request
uses: peter-evans/create-pull-request@v1.5.2
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
PULL_REQUEST_TITLE: ${{ steps.vars.outputs.pr_title }}
PULL_REQUEST_BODY: ${{ steps.vars.outputs.pr_body }}
或者,您可以使用set-env
。
- name: Set environment variables
run: |
echo ::set-env name=PR_TITLE::"[Test] Add report file $(date +%d-%m-%Y)"
echo ::set-env name=PR_BODY::"This PR was auto-generated on $(date +%d-%m-%Y) \
by [create-pull-request](https://github.com/peter-evans/create-pull-request)."
- name: Create Pull Request
uses: peter-evans/create-pull-request@v1.5.2
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
PULL_REQUEST_TITLE: ${{ env.PR_TITLE }}
PULL_REQUEST_BODY: ${{ env.PR_BODY }}
更新:不推荐使用第一个示例中的Docker操作。请参阅this answer,了解GitHub Actions中使用docker的最新方法。