Anyone know how can I increment the value of a variable under some conditions, (for example only if the pipeline succeeded) and save it for next build?

Example:
I set a variable: number=5.
If the pipeline succeeded and job number 2 ran, I want number=6 on the next build.

Is this possible?

CodePudding user response：

You can set the value of your variable by using following command:

-bash

echo "##vso[task.setvariable variable=number;]newValue"

-powershell

Write-Host "##vso[task.setvariable variable=number;]newValue"

so basically, your number will be set to the newValue after running this command.

CodePudding user response：

how to increment and save variable in azure devops pipeline

Since you could not use the counter, you could try to use the REST API Definitions - Update to update the variable:

PUT https://dev.azure.com/{organization}/{project}/_apis/build/definitions/{definitionId}?api-version=5.0

The test scripts:

$url = "https://dev.azure.com/{organization}/{project}/_apis/build/definitions/{definitionId}?api-version=6.0"

Write-Host "URL: $url"
$pipeline = Invoke-RestMethod -Uri $url -Headers @{
    Authorization = "Bearer $env:SYSTEM_ACCESSTOKEN"
}
Write-Host "Pipeline = $($pipeline | ConvertTo-Json -Depth 100)"

$counter = [int]$pipeline.variables.Test.value

$counter  

$pipeline.variables.Test.value = $counter

####****************** update the modified object **************************
$json = @($pipeline) | ConvertTo-Json -Depth 99


$updatedef = Invoke-RestMethod -Uri $url -Method Put -Body $json -ContentType "application/json" -Headers @{Authorization = "Bearer $env:SYSTEM_ACCESSTOKEN"}

write-host "==========================================================" 
Write-host "The value of Varialbe 'Test' is updated to" $updatedef.variables.Test.value

Note: We neeed to declare the variable type as int before we can use

$counter = [int]$pipeline.variables.Test.value

$counter  

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