Azure Pipelines：为什么我的变量不使用“键：值”语法设置，而是使用“名称，值”语法设置？

Question

我尝试更改定义变量的语法，但不再设置变量。我认为如果我还使用变量组或模板，我只需要使用“名称，值”语法而我没有，所以我想使用“键：值”语法，因为它更具可读性。

但是，当我切换到更易读的语法时，Private.RevisionVersion、pythonPackageVersion 和 nugetPackageVersion 变量没有被设置（如第一个代码 sn-p 的输出所示）。

“key:value”语法（不工作）：

variables:
  Private.MajorMinorVersion: 1.2
  
  isFinalRelease: false
  isReleaseCandidate: false
  isAlpha: true

  ${{ if eq(variables['isFinalRelease'], 'true') }}:
    Private.RevisionVersion: $[counter(variables['Private.MajorMinorVersion'], 0)]
    pythonPackageVersion: $[format('{0}.{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    nugetPackageVersion: $[format('{0}.{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
  ${{ if eq(variables['isReleaseCandidate'], 'true') }}:
    Private.RevisionVersion: $[counter(format('{0}rc', variables['Private.MajorMinorVersion']), 1)]
    pythonPackageVersion: $[format('{0}rc{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    nugetPackageVersion: $[format('{0}.{1}-rc', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
  ${{ if eq(variables['isAlpha'], 'true') }}:
    Private.RevisionVersion: $[counter(format('{0}a', variables['Private.MajorMinorVersion']), 1)]
    pythonPackageVersion: $[format('{0}a{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    nugetPackageVersion: $[format('{0}.{1}-a', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]

jobs:
  - job: Echo_Variables
    steps:
      - script: echo $(Private.MajorMinorVersion) $(isFinalRelease) $(isReleaseCandidate) $(isAlpha)
      - script: echo $(Private.RevisionVersion) $(pythonPackageVersion) $(nugetPackageVersion)

输出：

echo 1.2 False False True
echo $(Private.RevisionVersion) $(pythonPackageVersion) $(nugetPackageVersion)

Private.RevisionVersion、pythonPackageVersion 和 nugetPackageVersion 变量未设置。

---

“名称，值”语法（工作）：

variables:
  - name: Private.MajorMinorVersion
    value: 1.2

  - name: isFinalRelease
    value: false

  - name: isReleaseCandidate
    value: false

  - name: isAlpha
    value: true

  - name: Private.RevisionVersion
    ${{ if eq(variables['isFinalRelease'], 'true') }}:
        value: $[counter(variables['Private.MajorMinorVersion'], 0)]
    ${{ if eq(variables['isReleaseCandidate'], 'true') }}:
        value: $[counter(format('{0}rc', variables['Private.MajorMinorVersion']), 1)]
    ${{ if eq(variables['isAlpha'], 'true') }}:
        value: $[counter(format('{0}a', variables['Private.MajorMinorVersion']), 1)]
    
  - name: pythonPackageVersion
    ${{ if eq(variables['isFinalRelease'], 'true') }}:
        value: $[format('{0}.{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    ${{ if eq(variables['isReleaseCandidate'], 'true') }}:
        value: $[format('{0}rc{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    ${{ if eq(variables['isAlpha'], 'true') }}:
        value: $[format('{0}a{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
        
  - name: nugetPackageVersion
    ${{ if eq(variables['isFinalRelease'], 'true') }}:
        value: $[format('{0}.{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    ${{ if eq(variables['isReleaseCandidate'], 'true') }}:
        value: $[format('{0}.{1}-rc', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    ${{ if eq(variables['isAlpha'], 'true') }}:
        value: $[format('{0}.{1}-a', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]

jobs:
  - job: Echo_Variables
    steps:
      - script: echo $(Private.MajorMinorVersion) $(isFinalRelease) $(isReleaseCandidate) $(isAlpha)
      - script: echo $(Private.RevisionVersion) $(pythonPackageVersion) $(nugetPackageVersion)

输出：

echo 1.2 False False True
echo 1 1.2a1 1.2.1-a

据我所知，这些在语义上是相同的。我错过了什么？

Answer 1

如果我们切换条件如下：

variables:
  Private.MajorMinorVersion: 1.2
  
  isFinalRelease: false 
  isReleaseCandidate: false 
  isAlpha: true

  ${{ if eq(variables['isFinalRelease'], 'true') }}:
    Private.RevisionVersion: $[counter(variables['Private.MajorMinorVersion'], 0)]
    pythonPackageVersion: $[format('{0}.{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    nugetPackageVersion: $[format('{0}.{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
  ${{ if eq(variables['isAlpha'], 'true') }}:
    Private.RevisionVersion: $[counter(format('{0}a', variables['Private.MajorMinorVersion']), 1)]
    pythonPackageVersion: $[format('{0}a{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    nugetPackageVersion: $[format('{0}.{1}-a', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
  ${{ if eq(variables['isReleaseCandidate'], 'true') }}:
    Private.RevisionVersion: $[counter(format('{0}rc', variables['Private.MajorMinorVersion']), 1)]
    pythonPackageVersion: $[format('{0}rc{1}', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]
    nugetPackageVersion: $[format('{0}.{1}-rc', variables['Private.MajorMinorVersion'], variables['Private.RevisionVersion'])]

jobs:
  - job: Echo_Variables
    steps:
      - script: echo $(Private.MajorMinorVersion) $(isFinalRelease) $(isReleaseCandidate) $(isAlpha)
      - script: echo $(Private.RevisionVersion) $(pythonPackageVersion) $(nugetPackageVersion)

输出：

echo 1.2 False False True
echo 1 1.2a1 1.2.1-a

根据测试结果，好像不会运行最新的条件，只会运行前两个条件。

我已经向开发者社区报告了这个问题，你可以关注这个ticket以获取最新消息，如果有任何更新，我会在这里更新。

Answer 2

我认为这是失败的，因为 isAlpha 的布尔值是 True，而您将它与字符串 'true' 进行比较。尝试将此表达式用于isAlpha：

    ${{ if variables['isAlpha'] }}:
        value: ...

或

    ${{ if eq(variables['isAlpha'], true) }}:
        value: ...