<# .SYNOPSIS Switches the Git branch .DESCRIPTION This PowerShell script switches to a given branch in a Git repository (including updating submodules). .PARAMETER branchName Specifies the target branch name .PARAMETER pathToRepo Specifies the file path to the local Git repository .EXAMPLE PS> ./switch-branch main C:\MyRepo ⏳ (1/6) Searching for Git executable... git version 2.43.0.windows.1 ⏳ (2/6) Checking Git repository... ⏳ (3/6) Fetching updates... ⏳ (4/6) Switching to branch 'main'... ⏳ (5/6) Pulling updates... ⏳ (6/6) Updating submodules... ✔️ Switched repo 📂MyRepo to branch 'main' in 22 sec .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz | License: CC0 #> param([string]$branchName = "", [string]$pathToRepo = "$PWD") try { if ($branchName -eq "") { $branchName = Read-Host "Enter the branch name to switch to" } if ($pathToRepo -eq "") { $pathToRepo = Read-Host "Enter the path to the local Git repository" } $stopWatch = [system.diagnostics.stopwatch]::startNew() Write-Host "⏳ (1/6) Searching for Git executable... " -noNewline & git --version if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" } Write-Host "⏳ (2/6) Checking Git repository..." $pathToRepo = Resolve-Path "$pathToRepo" if (-not(Test-Path "$pathToRepo" -pathType container)) { throw "Can't access directory: $pathToRepo" } $result = (git status) if ($lastExitCode -ne "0") { throw "'git status' in $pathToRepo failed with exit code $lastExitCode" } if ("$result" -notmatch "nothing to commit, working tree clean") { throw "Git repository is NOT clean: $result" } $pathToRepoName = (Get-Item "$pathToRepo").Name "⏳ (3/6) Fetching updates..." & git -C "$pathToRepo" fetch --all --prune --prune-tags --force if ($lastExitCode -ne "0") { throw "'git fetch' failed with exit code $lastExitCode" } "⏳ (4/6) Switching to branch '$branchName'..." & git -C "$pathToRepo" checkout --recurse-submodules "$branchName" if ($lastExitCode -ne "0") { throw "'git checkout $branchName' failed with exit code $lastExitCode" } "⏳ (5/6) Pulling updates..." & git -C "$pathToRepo" pull --recurse-submodules if ($lastExitCode -ne "0") { throw "'git pull' failed with exit code $lastExitCode" } "⏳ (6/6) Updating submodules..." & git -C "$pathToRepo" submodule update --init --recursive if ($lastExitCode -ne "0") { throw "'git submodule update' failed with exit code $lastExitCode" } [int]$elapsed = $stopWatch.Elapsed.TotalSeconds "✔️ Switched repo 📂$pathToRepoName to branch '$branchName' in $elapsed sec." exit 0 # success } catch { "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])" exit 1 }