无法将命令的输出分配给 $GITHUB_OUTPUT 在 GitHub Actions 中

huangapple
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英文:

Unable to assign output of command to $GITHUB_OUTPUT in github actions

问题

  1. 这个 Github 动作旨在将 `ls` 命令的输出转换为 Github Actions 中策略矩阵的输入 [json]。
  3. 下面，工作流在 UNIX github runner 上尝试失败。
  5. name: 将 LS 输出转换为策略矩阵
  7. on:
  8.   push:
  9.     branches:
  10.       - main
  12. jobs:
  13.   转换为矩阵:
  14.     runs-on: ubuntu-latest
  16.     steps:
  17.       - name: 获取 LS 输出
  18.         id: matrix_step
  19.         run: |
  20.           list=$(ls -1 /etc/*.conf);
  21.           matrix_values=$(echo '[ "'"$(echo "$list" | sed ':a;N;$!ba;s/\n/", "/g')"" ]')
  22.           echo "Matrix values: $matrix_values"
  23.           echo "matrix_values=$matrix_values" >> $GITHUB_ENV
  24.           
  25.   构建:
  26.     runs-on: ubuntu-latest
  27.     needs: 转换为矩阵
  28.     
  29.     strategy:
  30.       matrix: 
  31.         filename: ${{ needs.setup-matrix.outputs.matrix-combinations }}
  33.     steps:
  35.       - name: 构建文件
  36.         run: |
  37.           echo "构建 ${{ matrix.filename }}"
  38.           # 在此处使用 ${{ matrix.filename }} 变量添加构建步骤
  40. `转换为矩阵` 作业成功并打印出此值 
  42. > Matrix values: [ "/etc/adduser.conf", "/etc/apt-fast.conf",
  43. > "/etc/ca-certificates.conf", "/etc/cgconfig.conf",
  44. > "/etc/cgrules.conf", "/etc/debconf.conf", "/etc/sudo_logsrvd.conf",
  45. > "/etc/sysctl.conf", "/etc/ucf.conf", "/etc/usb_modeswitch.conf",
  46. > "/etc/waagent.conf", "/etc/xattr.conf" ]
  48. 但构建作业失败，显示以下错误:
  50. > 将 LS 输出转换为策略矩阵: .github#L1 在评估作业 'build' 的 'strategy' 时出错。.github/workflows/generateinput.yml (行: 27, 列: 19): 预期之外的值 ''.
  52. 请问如何将 `ls` 命令的输出转换为策略矩阵的合理输入，您能给予建议吗？
英文:

This github action aims to convert the output of ls command into input [json] for the strategy matrix in github actions.

Below, workflow attempt fails on a UNIX github runner.

name: Convert LS Output to Strategy Matrix

on:
push:
branches:
- main

jobs:
convert-to-matrix:
runs-on: ubuntu-latest

  1. steps:
  2.   - name: Get LS Output
  3.     id: matrix_step
  4.     run: |
  5.       list=$(ls -1 /etc/*.conf);
  6.       matrix_values=$(echo '[ "'"$(echo "$list" | sed ':a;N;$!ba;s/\n/", "/g')"'" ]')
  7.       echo "Matrix values: $matrix_values"
  8.       echo "matrix_values=$matrix_values" >> $GITHUB_ENV

build:
runs-on: ubuntu-latest
needs: convert-to-matrix

  1. strategy:
  2.   matrix: 
  3.     filename: ${{ needs.setup-matrix.outputs.matrix-combinations }}
  5. steps:
  7.   - name: Build the file
  8.     run: |
  9.       echo "Building ${{ matrix.filename }}"
  10.       # Add your build steps here using the ${{ matrix.filename }} variable

convert-to-matrix job is successful and prints this value

> Matrix values: [ "/etc/adduser.conf", "/etc/apt-fast.conf",
> "/etc/ca-certificates.conf", "/etc/cgconfig.conf",
> "/etc/cgrules.conf", "/etc/debconf.conf", "/etc/sudo_logsrvd.conf",
> "/etc/sysctl.conf", "/etc/ucf.conf", "/etc/usb_modeswitch.conf",
> "/etc/waagent.conf", "/etc/xattr.conf" ]

But the build job fails with the following error:

> Convert LS Output to Strategy Matrix: .github#L1 Error when evaluating
> 'strategy' for job 'build'. .github/workflows/generateinput.yml (Line:
> 27, Col: 19): Unexpected value ''

Can you please suggest how can I convert the output of ls to something reasonable input to a strategy matrix.

答案1

得分: 1

上述代码示例的问题包括：

  • 作业级输出

    • 当在不同作业之间使用输出时，应该在作业级别而不仅仅是步骤级别定义所需的输出。

  • fromJSON

    • 然后需要将matrix_values输出用于strategy.matrix，这需要使用fromJSON将值转换为数组。

有关详细讨论和通用示例，请参阅此答案：Github Actions：如何在脚本中使用strategy/matrix

根据评论中提供的url，以下是正确设置和导出矩阵用法所需输出的更新版本：

  1. jobs:
  2.   convert-to-matrix:
  3.     runs-on: ubuntu-latest
  5.     steps:
  6.       - name: Get LS Output
  7.         id: matrix_step
  8.         run: |
  9.           list=$(ls -1 /etc/*.conf);
  10.           matrix_values=$(echo '[ "'"$(echo "$list" | sed ':a;N;$!ba;s/\n/", "/g')"" ]"')
  11.           echo "Matrix values: $matrix_values"
  12.           echo "matrix_values=$matrix_values" >> $GITHUB_OUTPUT          
  13.     outputs:
  14.       matrix-combination: ${{ steps.matrix_step.output.matrix_values }}   
  15.   build:
  16.     runs-on: ubuntu-latest
  17.     needs: convert-to-matrix
  18.     
  19.     strategy:
  20.       matrix: 
  21.         filename: ${{ fromJSON(needs.setup-matrix.outputs.matrix-combinations) }}
英文:

The issues with the code example above were:

  • job-level outputs
    • When using outputs across different jobs, the required outputs should be defined on job level and not step level only.
  • fromJSON
    • matrix_values output then needs to be used in strategy.matrix which requires fromJSON to convert the value to an array.

Detailed discussion and generic example available in this answer: Github Actions: How use strategy/matrix with script

Based on the url provided in comments, here is the updated version with correctly setting and exporting the required output for matrix usage:

  1. jobs:
  2.   convert-to-matrix:
  3.     runs-on: ubuntu-latest
  5.     steps:
  6.       - name: Get LS Output
  7.         id: matrix_step
  8.         run: |
  9.           list=$(ls -1 /etc/*.conf);
  10.           matrix_values=$(echo '[ "'"$(echo "$list" | sed ':a;N;$!ba;s/\n/", "/g')"'" ]')
  11.           echo "Matrix values: $matrix_values"
  12.           echo "matrix_values=$matrix_values" >> $GITHUB_OUTPUT
  13.     outputs:
  14.       matrix-combination: ${{ steps.matrix_step.output.matrix_values }}   
  15.   build:
  16.     runs-on: ubuntu-latest
  17.     needs: convert-to-matrix
  18.     
  19.     strategy:
  20.       matrix: 
  21.         filename: ${{ fromJSON(needs.setup-matrix.outputs.matrix-combinations) }}

huangapple
  • 本文由 发表于 2023年7月24日 00:12:11
  • 转载请务必保留本文链接：https://go.coder-hub.com/76749213.html
  • convertto-json
  • github
  • github-actions
  • ls
  • matrix
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