PowerShell Script to combine GIT repositories and keep their history

CombineGitReposWithHistory.ps1

$ErrorActionPreference = "Stop"

$repos = (
'',
''
)

$baseUrl = ''
$currentDir = ''
$tempDir = ''

Set-Location $currentDir

foreach ($repo in $repos) {
    $url = $baseUrl + $repo + '.git'
    $tempDirRepo = $tempDir + $repo
    $moveDirRepo = $tempDirRepo + '\' + $repo + '-repo'
    
    Set-Location $tempDir
    git clone $url $repo
    Set-Location $repo
    git cob main
    Set-Location $tempDirRepo
    
    New-Item  $moveDirRepo -ItemType "directory" 
    $filesToMove = Get-ChildItem *.* -File -Exclude .\.git\,  $tempDirRepo
    $dirsToMove = Get-ChildItem -Directory -Exclude .\.git\,  $tempDirRepo
    
    if ($filesToMove) {
        Move-Item $filesToMove $moveDirRepo
    }
        
    foreach ($directory in $dirsToMove) {
        if ($directory.ToString() -like '*-repo') {
            continue
        }
        Move-Item $directory.ToString() $moveDirRepo
    }
    
    $comment = 'Move to Repo Folder ' + $repo
    git cm $comment
    Set-Location $currentDir
    git remote add $repo $tempDirRepo
    git fetch $repo --tags
    git merge --allow-unrelated-histories $repo/main
    git remote remove $repo
    Remove-Item $tempDirRepo -Force -Recurse
}