Question

我有以下变量：

名称：TestVar

值：xxx

以及以下脚本：

$testVar=$env:TestVar.ToLower()

if($testVar-eq 'xxx'){

$testVar= 'updated'

Write-Host "##vso[task.setvariable variable=TestVar;]$testVar"

运行后的值仍为xxx，而不是updated。

Answer 1

"##vso[task.setvariable variable=TestVar;]$testVar"的语法是仅针对正在运行的构建而不是将来的构建更新变量值。

如果要更新构建变量列表，则需要使用Rest API更新构建定义。

执行此操作的PowerShell脚本示例：

$head = @{Authorization = "Bearer $env:SYSTEM_ACCESSTOKEN" }
$url="$(System.TeamFoundationCollectionUri)$(System.TeamProject)/_apis/build/definitions/$(System.DefinitionId)?api-version=5.0"         
$build = Invoke-RestMethod -Uri $url -Method Get -Headers $head -ContentType application/json
$build.variables.TestVar.value = "updated"
$json = $build  | ConvertTo-Json -Depth 10
Invoke-RestMethod -Uri $url -Method Put -Headers $head -Body $json -ContentType application/json

Answer 2

如果您想使更改永久生效，则需要通过api进行以下操作，否则仅在运行期间进行

$projecturi = "$env:SYSTEM_TEAMFOUNDATIONCOLLECTIONURI"
$project = "$env:SYSTEM_TEAMPROJECT"
$accessToken = $env:SYSTEM_ACCESSTOKEN
$buildID = "$env:BUILD_BUILDID"

$headers = @{ "Authorization" = "Bearer $accessToken" }

$buildurl= $projecturi + $project + "/_apis/build/builds/" + $buildID + "?api-version=2.0"

Write-Host $buildurl

$getbuild = Invoke-RestMethod -Uri $buildurl -headers $headers -Method Get |select definition

Write-Host $getbuild

$definitionid = $getbuild.definition.id

Write-Host $definitionid

$defurl = $projecturi + $project + "/_apis/build/definitions/" + $definitionid + "?api-version=2.0"

$definition = (Invoke-WebRequest $defurl -Headers $headers -Method GET -ContentType "application/json" -UseBasicParsing).Content | ConvertFrom-Json

$definition.variables.testvar.value = "Updated"

$json = @($definition) | ConvertTo-Json  -Depth 100


Try{
  $result = (Invoke-WebRequest $defurl -Method "Put" -Headers $headers -ContentType "application/json" -Body $json -UseBasicParsing).Content | ConvertFrom-Json
}
Catch{
  $errorMessage = $_.Exception.Message
  $errorDetail = $_
  $message = @"
$errorMessage
$errorDetail
"@

  Write-Error $message -ErrorAction Continue
  return 0
}

Azure Devops生成变量在生成期间不会更新

2 个答案: