Git - Create develop-Branch in several Git repositories

CreateDevelopBranches.ps1

Clear-Host
$ErrorActionPreference = 'Stop'

# get all existing Git repositories => For this, C:\Git get filtered for all folders ending on 'v' and a digit because only those folders are accesibble via Git-Server
$Git_Repos = Get-ChildItem C:\Git | ?{ $_.PSIsContainer } | Where-Object {$_.Name -match '\w*v\d\b'} | Select-Object Name

$Git_Server = 'https://www.MyGitServer.com'
$Git_Branch = 'develop'
$Git_LocalCloneDirectory = 'C:\temp'

ForEach($Git_Repo in $Git_Repos)
{
    cd $Git_LocalCloneDirectory

    $Git_Repo_Name = $Git_Repo.Name
    $Git_Repo_AbsoluteURI = "$Git_Server/$Git_Repo_Name.git"
    
    # get all remote branches and check whether a develop-branch already exists
    $Git_Repo_RemoteBranches = git ls-remote $Git_Repo_AbsoluteURI
    $Git_Repo_ContainsDevelopBranch = $FALSE
    ForEach($Git_Repo_RemoteBranch in $Git_Repo_RemoteBranches)
    {
        # the remote-branch-information is tab-delimited string => second part is the branch name
        $Git_Repo_RemoteBranchName = $Git_Repo_RemoteBranch.Split("`t")[1]
        if ($Git_Repo_RemoteBranchName -like "*$Git_Branch*")
        {
            $Git_Repo_ContainsDevelopBranch = $TRUE
            break
        }
    }
    
    # if the develop branch already exists, it doesn't have to be created
    if ($Git_Repo_ContainsDevelopBranch)
    {
        continue
    }
    "Git repo '$Git_Repo_Name' does not have a $Git_Branch`-branch"
    
    $Git_Repo_LocalFolder = Join-Path -Path $Git_LocalCloneDirectory -ChildPath $Git_Repo_Name

    "Cloning Git repo '$Git_Repo_Name' to '$Git_Repo_LocalFolder'"
    Try
    {
        git clone $Git_Repo_AbsoluteURI -q
        Start-Sleep 2
    }
    Catch
    {        
    }
    cd $Git_Repo_LocalFolder
    
    "Creating new branch '$Git_Branch'"
    git checkout -b $Git_Branch -q
    
    "Push branch '$Git_Branch' to origin"
    git push origin $Git_Branch -q

    Start-Sleep 2
}