gitversion.yml

# Runs GitVersion to determine the SemVer for the build based on git commit history.
#  This version is then stashed in pipeline variable 'gitversion' which may then be
#  referenced in subsequent pipeline steps as $(gitversion).
#
# This version is also used to set the label for the Azure DevOps pipeline run.
#
# NOTE: 
#    This template expects and requires that GitVersion is installed on the build
#     machine  (https://github.com/GitTools/GitVersion)
#
#    Install on Windows using chocolatey: choco install GitVersion.Portable
#
#    The Git command-line client is also required (not by GitVersion itself but due
#     the need to run Git commands to sync tags).

steps:
- powershell: |
    # First make sure that local tags reflect remote tags (otherwise any which were
    #  deleted in the remote will still be in the local repo).  The two commands that
    #  follow first delete ALL local tags then fetch tags from the remote)
    
    git tag -l | %{git tag -d $_}
    git fetch --tags
    
    # Now we can run GitVersion, confident that any tag-based versioning will reflect
    #  the tags in the repo.
    
    $GitVersion = GitVersion | ConvertFrom-Json

    # Set output variables.  To consume these in subsequent steps map the output
    #  variables as job variables for those jobs 

    Write-Host "##vso[task.setvariable variable=Major;isOutput=true]$($GitVersion.Major)"
    Write-Host "##vso[task.setvariable variable=Minor;isOutput=true]$($GitVersion.Minor)"
    Write-Host "##vso[task.setvariable variable=Patch;isOutput=true]$($GitVersion.Patch)"
    Write-Host "##vso[task.setvariable variable=PreReleaseLabel;isOutput=true]$($GitVersion.PreReleaseLabel)"
    Write-Host "##vso[task.setvariable variable=PreReleaseNumber;isOutput=true]$($GitVersion.PreReleaseNumber)"

    Write-Host "##vso[task.setvariable variable=SemVer;isOutput=true]$($GitVersion.SemVer)"

    Write-Host "##vso[build.updatebuildnumber]$($GitVersion.SemVer)"
  name: GitVersion
  displayName: GitVersion