在 GitHub 工作流程中获取当前日期和时间

Question

我有一个 GitHub 工作流程，用于发布存储库的夜间快照。它使用the create-release action。这就是工作流文件现在的样子：

name: Release Nightly Snapshot

on:
  schedule:
  - cron: "0 0 * * *"

jobs:
  build:
    name: Release Nightly Snapshot
    runs-on: ubuntu-latest
    steps:
      - name: Checkout master Branch
        uses: actions/checkout@v2
        with:
          ref: 'master'
      - name: Create Release
        id: nightly-snapshot
        uses: actions/create-release@latest
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: 'nightly snapshot'
          release_name: 'nightly snapshot'
          draft: false
          prerelease: false

我希望 tag_name 和 release_name 使用当前日期和时间，而不是硬编码值。但是，我找不到任何关于它的文档。我该怎么做？

Answer 1

从this post，您可以创建一个set its output 的步骤，其值为$(date +'%Y-%m-%d')

然后使用${{ steps.date.outputs.date }} 使用此输出。以下显示了环境变量和输入的示例：

on: [push, pull_request]
name: build
jobs:
  build:
    name: Example
    runs-on: ubuntu-latest
    steps:
      - name: Get current date
        id: date
        run: echo "::set-output name=date::$(date +'%Y-%m-%d')"
      - name: Test with environment variables
        run: echo $TAG_NAME - $RELEASE_NAME
        env:
          TAG_NAME: nightly-tag-${{ steps.date.outputs.date }}
          RELEASE_NAME: nightly-release-${{ steps.date.outputs.date }}
      - name: Test with input
        uses: actions/hello-world-docker-action@master
        with:
          who-to-greet: Mona-the-Octocat-${{ steps.date.outputs.date }}

输出：

* Test with environment variables
nightly-tag-2020-03-31 - nightly-release-2020-03-31

* Test with input
Hello Mona-the-Octocat-2020-03-31

Answer 2

这是通过环境变量执行此操作的另一种方法（来自this post）：

name: deploy
on: [push]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Set current date as env variable
        run: echo "NOW::$(date +'%Y-%m-%dT%H:%M:%S')" >> $GITHUB_ENV
      - name: Echo current date
        run: echo $NOW

这会将日期设置为环境变量，如果您想在后续步骤的脚本/程序中使用它，这将非常有用。