GitHub Action自动发布报错：未提供必填输入tag_name

问题根源 #

你遇到的tag_name缺失错误，实际来自Update release步骤，而非Create release步骤。actions/update-release@v1要求传入有效的release_id或tag_name参数，但你使用的${{ env.RELEASE_ID }}并未定义，导致该步骤无法获取必要输入，进而抛出缺失tag_name的错误。同时你的上传步骤还存在变量作用域问题，也需要一并修复。

修复步骤 #

1. 捕获Create Release的输出ID #

给Create a release步骤添加id属性，以便后续步骤引用它生成的Release ID：

- name: Create a release
  id: create_release  # 新增这一行
  uses: actions/create-release@v1
  env:
    GITHUB_TOKEN: ${{ env.GITHUB_TOKEN }}
  with:
    tag_name: "v${{ env.TAG_NAME }}"
    release_name: "Dark Everywhere ${{ env.TAG_NAME }}🌙"
    draft: true
    prerelease: false

2. 修正Update Release的Release ID参数 #

将Update release步骤中的release_id改为引用Create Release步骤的输出ID：

- name: Update release
  uses: actions/update-release@v1
  env:
    GITHUB_TOKEN: ${{ env.GITHUB_TOKEN }}
  with:
    release_id: ${{ steps.create_release.outputs.id }}  # 替换原来的env.RELEASE_ID
    body: "Build description here"

3. 修复上传步骤的变量问题 #

你当前上传步骤中使用的$branch是Shell循环内的局部变量，无法在步骤外访问。改用通配符匹配所有生成的压缩包，确保所有文件都能被上传：

- name: Upload files
  uses: actions/upload-artifact@v2
  with:
    name: "Dark-Everywhere-Packages"
    path: "${{ env.FILE_NAME }}-*${{ env.FILE_EXTENSION }}"  # 用通配符匹配所有生成的zip

完整修正后的YAML代码 #

name: Release
on:
  push:
    branches:
      - master
env:
  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
  FILE_NAME: "Dark-Everywhere"
  FILE_EXTENSION: ".zip"
  BRANCHES: "1.19.3,1.19,1.18"
  PACKAGE_NAME: "assets,pack.mcmeta,pack.png"
  TAG_NAME: "1.0.0"
jobs:
  release:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v2
    - name: Create a release
      id: create_release
      uses: actions/create-release@v1
      env:
        GITHUB_TOKEN: ${{ env.GITHUB_TOKEN }}
      with:
        tag_name: "v${{ env.TAG_NAME }}"
        release_name: "Dark Everywhere ${{ env.TAG_NAME }}🌙"
        draft: true
        prerelease: false
    - name: Generate a zip archive for each branch
      run: |
        for branch in $(echo $BRANCHES | tr "," "\n"); do
          zip -r "$FILE_NAME-$branch$FILE_EXTENSION" $PACKAGE_NAME
        done
    - name: Upload files
      uses: actions/upload-artifact@v2
      with:
        name: "Dark-Everywhere-Packages"
        path: "${{ env.FILE_NAME }}-*${{ env.FILE_EXTENSION }}"
    - name: Update release
      uses: actions/update-release@v1
      env:
        GITHUB_TOKEN: ${{ env.GITHUB_TOKEN }}
      with:
        release_id: ${{ steps.create_release.outputs.id }}
        body: "Build description here"

内容的提问来源于stack exchange，提问作者Victor Matos