Git - Set default branch

SetDefaultBranch.ps1

Clear-Host
$ErrorActionPreference = 'Stop'

$Git_Branch = 'develop'
$Git_Base_Directory = 'C:\Git'

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

ForEach($Git_Repo in $Git_Repos)
{
    $Git_Repo_Name = $Git_Repo.Name
    $Git_Repo_Directory = Join-Path -Path $Git_Base_Directory -ChildPath $Git_Repo_Name
    
    cd $Git_Repo_Directory
    
    # get the repo's current default branch
    $Git_Repo_CurrentDefaultBranch = git symbolic-ref HEAD
        
    $Git_Repo_DefaultIsDevelopBranch = $FALSE
    if ($Git_Repo_CurrentDefaultBranch -like "*$Git_Branch*")
    {
        $Git_Repo_DefaultIsDevelopBranch = $TRUE
    }
    
    # if the default branch is already set to develop, it doesn't have to be set again
    if ($Git_Repo_DefaultIsDevelopBranch)
    {
        continue
    }
    "Git repo's '$Git_Repo_Name' default branch has to be set to $Git_Branch`-branch"
    
    git symbolic-ref HEAD refs/heads/$Git_Branch

    Start-Sleep 2
}