变量值在第一个阶段之后为空

Question

我正试图从多个连续阶段中的一个阶段访问变量。

在第一阶段中，变量具有正确的值，但在接下来的所有阶段中，它都变为空字符串。

另请参阅此帖子了解更多信息

如有任何帮助，将不胜感激

感谢

事实上，我喜欢更多的细节，当de-dependsOn不指向设置变量值的阶段时，变量被设置为空，在下面的示例中，阶段A设置变量，阶段B依赖于A并可以使用它，然后在依赖于B的阶段C中，变量值变为空。

stages:
- stage: A
jobs:
- job: JA
steps:
- script: |
echo "This is job Foo."
echo "##vso[task.setvariable variable=doThing;isOutput=true]Yes" #The variable doThing is set to true
name: DetermineResult
- script: echo $(DetermineResult.doThing)
name: echovar
- job: JA_2
dependsOn: JA
condition: eq(dependencies.JA.outputs['DetermineResult.doThing'], 'Yes')
steps:
- script: |
echo "This is job Bar."
#stage B runs if DetermineResult task set doThing variable n stage A
- stage: B
dependsOn: A
jobs:
- job: JB
variables:
varFromStageA: $[ stageDependencies.A.JA.outputs['DetermineResult.doThing'] ]
steps:
- bash: echo "Hello world stage B first job"
- script: echo $(varFromStageA)
#stage B runs if DetermineResult task set doThing variable n stage A
- stage: C
dependsOn: B
jobs:
- job: JC
variables:
varFromStageA: $[ stageDependencies.A.JA.outputs['DetermineResult.doThing'] ]
steps:
- bash: echo "Hello world stage B first job"
- script: echo $(varFromStageA)

Answer 1

您需要将阶段C更改为同时依赖A和B。A必须在dependencies列表中，才能使用阶段Dependencies变量。

...
#stage B runs if DetermineResult task set doThing variable n stage A
- stage: C
dependsOn: B
jobs:
...   

...
#stage B runs if DetermineResult task set doThing variable n stage A
- stage: C
dependsOn: 
- A
- B
jobs:
...