<# .SYNOPSIS Creates a new Git branch .DESCRIPTION This PowerShell script creates a new branch in a local Git repository and switches to it. .PARAMETER newBranch Specifies the new Git branch name .PARAMETER path Specifies the file path to the local Git repository (current working directory by default) .EXAMPLE PS> ./new-branch.ps1 feature123 ⏳ (1/6) Searching for Git executable... git version 2.45.0 ⏳ (2/6) Checking local repository... C:\Repos\rust ⏳ (3/6) Fetching remote updates... git@github.org:rust/rust.git ⏳ (4/6) Creating new branch... ⏳ (5/6) Pushing updates... ⏳ (6/6) Updating submodules... ✅ Repo 'rust' now on new 'feature123' branch (based on 'main', took 18s). .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz | License: CC0 #> param([string]$newBranch = "", [string]$path = "$PWD") try { if ($newBranch -eq "") { $newBranch = Read-Host "Enter the new Git 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... $path" if (-not(Test-Path "$path" -pathType container)) { throw "Can't access repo folder: $path" } $result = (git -C "$path" status) if ($lastExitCode -ne 0) { throw "'git status' in $path failed with exit code $lastExitCode" } $repoName = (Get-Item "$path").Name Write-Host "⏳ (3/6) Fetching remote updates... " -noNewline & git -C "$path" remote get-url origin if ($lastExitCode -ne 0) { throw "'git remote get-url origin' failed with exit code $lastExitCode" } & git -C "$path" fetch --all --recurse-submodules --prune --prune-tags --force if ($lastExitCode -ne 0) { throw "'git fetch' failed with exit code $lastExitCode" } $currentBranch = (git -C "$path" rev-parse --abbrev-ref HEAD) if ($lastExitCode -ne 0) { throw "'git rev-parse' failed with exit code $lastExitCode" } "⏳ (4/6) Creating new branch..." & git -C "$path" checkout -b "$newBranch" if ($lastExitCode -ne 0) { throw "'git checkout -b $newBranch' failed with exit code $lastExitCode" } "⏳ (5/6) Pushing updates..." & git -C "$path" push origin "$newBranch" if ($lastExitCode -ne 0) { throw "'git push origin $newBranch' failed with exit code $lastExitCode" } "⏳ (6/6) Updating submodules..." & git -C "$path" submodule update --init --recursive if ($lastExitCode -ne 0) { throw "'git submodule update' failed with exit code $lastExitCode" } [int]$elapsed = $stopWatch.Elapsed.TotalSeconds "✅ Repo '$repoName' now on new '$newBranch' branch (based on '$currentBranch', took $($elapsed)s)." exit 0 # success } catch { "⚠️ ERROR: $($Error[0]) in script line $($_.InvocationInfo.ScriptLineNumber)" exit 1 }