Posh-AzureDevOps

1.0.8

modules/Repos/Remove-AzDoGitRepoBranch.psm1

<#
 
.SYNOPSIS
Remove a branch from a git repostiory
 
.DESCRIPTION
The command will add a remove an existing branch from a git repositories
 
.PARAMETER ApiVersion
Allows for specifying a specific version of the api to use (default is 5.0)
 
.PARAMETER Name
Name of the git repository
 
.PARAMETER BranchName
Name of the branch
 
.EXAMPLE
Remove-AzDoGitRepoBranch -Name <git repo name> -BranchName <branch name>
 
.NOTES
 
.LINK
https://github.com/ravensorb/Posh-AzureDevOps
 
#>
function Remove-AzDoGitRepoBranch()
{
    [CmdletBinding(
        SupportsShouldProcess=$True
    )]
    param
    (
        # Common Parameters
        [parameter(Mandatory=$false, ValueFromPipeline=$true, ValueFromPipelinebyPropertyName=$true)][PoshAzDo.AzDoConnectObject]$AzDoConnection,
        [parameter(Mandatory=$false)][string]$ApiVersion = $global:AzDoApiVersion,

        # Module Parameters
        [parameter(Mandatory=$true)][string]$Name,
        [parameter(Mandatory=$true)][string]$BranchName
    )
    BEGIN
    {
        if (-not $PSBoundParameters.ContainsKey('Verbose'))
        {
            $VerbosePreference = $PSCmdlet.GetVariableValue('VerbosePreference')
        }  

        $errorPreference = 'Stop'
        if ( $PSBoundParameters.ContainsKey('ErrorAction')) {
            $errorPreference = $PSBoundParameters['ErrorAction']
        }

        if (-Not (Test-Path variable:ApiVersion) -or $ApiVersion -ne "4.1") { $ApiVersion = "4.1"}

        if (-Not (Test-Path varaible:$AzDoConnection) -and $AzDoConnection -eq $null)
        {
            $AzDoConnection = Get-AzDoActiveConnection

            if ($null -eq $AzDoConnection) { Write-Error -ErrorAction $errorPreference -Message "AzDoConnection or ProjectUrl must be valid" }
        }

        Write-Verbose "Entering script $($MyInvocation.MyCommand.Name)"
        Write-Verbose "Parameter Values"
        $PSBoundParameters.Keys | ForEach-Object { Write-Verbose "$_ = '$($PSBoundParameters[$_])'" }
    }
    PROCESS
    {
        $repo = Get-AzDoGitRepos -AzDoConnection $AzDoConnection | ? { $_.name -eq $Name }
        
        if ($null -eq $repo)
        {
            Write-Error "Specified Repo '$Name' Not Found."

            return
        }

        $existingBranches = Get-AzDoGitRepoBranches -AzDoConnection $AzDoConnection -Name $Name

        $existingBranch = $existingBranches | ? { $_.name -eq "refs/heads/$BranchName"}
        if ($null -eq $existingBranch)
        {
            Write-Error "Specified Branch does not exist: $BranchName"

            return
        }

        $apiParams = @()

        # POST https://dev.azure.com/{organization}/{project}/_apis/git/repositories/{repositoryId}/refs?api-version=4.1
        $apiUrl = Get-AzDoApiUrl -RootPath $($AzDoConnection.ProjectUrl) -ApiVersion $ApiVersion -BaseApiPath "/_apis/git/repositories/$($repo.id)/refs" -QueryStringParams $apiParams

        # [{"name":"refs/heads/dev","newObjectId":"4aac2e2e07837b2c5e7e298c7167ca05cb5415e1","oldObjectId":"0000000000000000000000000000000000000000"}]
        $data = @(@{name="refs/heads/$($BranchName)";newObjectId="0000000000000000000000000000000000000000";oldObjectId="$($existingBranch.objectid)"})
        $body = $data | ConvertTo-Json -Depth 10 -Compress
        $body = "[$($body)]"

        Write-Verbose "---------Request---------"
        Write-Verbose $body
        Write-Verbose "---------Reqest---------"

        if (-Not $WhatIfPreference)
        {
            $results = Invoke-RestMethod $apiUrl -Method POST -Body $body -ContentType 'application/json' -Header $($AzDoConnection.HttpHeaders)   
        }
        
        Write-Verbose "---------Repos---------"
        Write-Verbose ($results | ConvertTo-Json -Depth 50 | Out-String)
        Write-Verbose "---------Repos---------"

        return $results
    }
    END {
        Write-Verbose "Leaving script $($MyInvocation.MyCommand.Name)"
     }
}