CODEWITHSUNDEEP
azureazure-devopsazure-pipelinescicdgit-tag
Mina
Mina

Reputation: 1

How to get a branch name in Azure DevOps when a tag is generated?

I want to get the branch name in a Azure pipeline. I can get it using:

- script: |
    echo "Original Source Branch: $(Build.SourceBranch)"
    BRANCH_NAME=${BUILD_SOURCEBRANCH#refs/heads/}
    echo "Branch Name: $BRANCH_NAME"
  displayName: 'Display source branch name'

But when I create a tag using:

git tag -a v1.0.1 -m "Release version 1.0.1"
git push origin v1.0.1

the branch name is only the tag value as follows:

Does anybody know how I can get the branch name when I created a tag?

I expected to get the branch name, but instead I get the tag value.

Upvotes: 0

Views: 316

Answers (1)

Miao Tian-MSFT
Miao Tian-MSFT

Reputation: 5622

The predefined variables Build.SourceBranch is the branch of the triggering repo the build was queued for. When the pipeline is triggered by a tag, the Build.SourceBranch should be refs/tags/tagname.

In my understanding, what you want is the branch name where the tag is created from. If it is, you can use the following powershell script to get the branch name.

- powershell:  |
    if ("$(Build.SourceBranch)" -like "refs/tags/*") {
        $tagName = "$(Build.SourceBranch)" -replace 'refs/tags/', ''

        # Get the commit hash of the tag
        $tagCommit = git rev-list -n 1 $tagName

        # Find the branch that contains the commit
        $BRANCH_NAME = git branch -r --contains $tagCommit | Select-String -Pattern 'origin/' | ForEach-Object { $_.Line -replace '.*origin/', '' } | Select-Object -First 1

        Write-Output "The tag $tagName was created from branch: $BRANCH_NAME"
    } else {
        $BRANCH_NAME = "$(Build.SourceBranch)" -replace 'refs/heads/', ''
        Write-Output "Branch Name: $BRANCH_NAME"
    }
  displayName: 'Display source branch name'

Test result:

Test result

Upvotes: 0

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