<# .SYNOPSIS Creates a new Git branch .DESCRIPTION This PowerShell script creates a new branch in a Git repository and switches to it. .PARAMETER newBranch Specifies the new branch name .PARAMETER repoPath Specifies the path to the Git repository (current working directory per default) .EXAMPLE PS> ./new-branch.ps1 test123 C:\MyRepo .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz | License: CC0 #> param([string]$newBranch = "", [string]$repoPath = "$PWD") try { if ($newBranch -eq "") { $newBranch = Read-Host "Enter the new branch name" } $stopWatch = [system.diagnostics.stopwatch]::startNew() Write-Host "⏳ (1/6) Searching for Git executable... " -noNewline & git --version if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" } Write-Host "⏳ (2/6) Checking local repository... 📂$repoPath" if (-not(Test-Path "$repoPath" -pathType container)) { throw "Can't access directory: $repoPath" } $repoPathName = (Get-Item "$repoPath").Name "⏳ (3/6) Fetching latest updates..." & git -C "$repoPath" fetch --all --recurse-submodules --prune --prune-tags --force if ($lastExitCode -ne "0") { throw "'git fetch' failed with exit code $lastExitCode" } $currentBranch = (git -C "$repoPath" rev-parse --abbrev-ref HEAD) if ($lastExitCode -ne "0") { throw "'git rev-parse' failed with exit code $lastExitCode" } "⏳ (4/6) Creating branch..." & git -C "$repoPath" checkout -b "$newBranch" if ($lastExitCode -ne "0") { throw "'git checkout -b $newBranch' failed with exit code $lastExitCode" } "⏳ (5/6) Pushing updates..." & git -C "$repoPath" push origin "$newBranch" if ($lastExitCode -ne "0") { throw "'git push origin $newBranch' failed with exit code $lastExitCode" } "⏳ (6/6) Updating submodules..." & git -C "$repoPath" submodule update --init --recursive if ($lastExitCode -ne "0") { throw "'git submodule update' failed with exit code $lastExitCode" } [int]$elapsed = $stopWatch.Elapsed.TotalSeconds "✔️ Creating branch '$newBranch' in repo 📂$repoPathName (based on '$currentBranch') took $elapsed sec" exit 0 # success } catch { "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])" exit 1 }