<# .SYNOPSIS Switches the Git branch .DESCRIPTION This PowerShell script switches to another branch in a Git repository (including submodules). .PARAMETER BranchName Specifies the branch name .PARAMETER RepoDir Specifies the path to the local Git repository .EXAMPLE PS> ./switch-branch main C:\MyRepo .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz | License: CC0 #> param([string]$BranchName = "", [string]$RepoDir = "$PWD") try { if ($BranchName -eq "") { $BranchName = read-host "Enter name of branch to switch to" } if ($RepoDir -eq "") { $RepoDir = read-host "Enter 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" } $RepoDir = Resolve-Path "$RepoDir" $RepoDirName = (Get-Item "$RepoDir").Name Write-Host "⏳ (2/6) Checking Git repository 📂$RepoDirName ..." if (-not(Test-Path "$RepoDir" -pathType container)) { throw "Can't access directory: $RepoDir" } $Result = (git status) if ($lastExitCode -ne "0") { throw "'git status' in $RepoDir failed with exit code $lastExitCode" } if ("$Result" -notmatch "nothing to commit, working tree clean") { throw "Git repository is NOT clean: $Result" } "⏳ (3/6) Fetching latest updates..." & git -C "$RepoDir" 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 "$RepoDir" checkout --recurse-submodules "$BranchName" if ($lastExitCode -ne "0") { throw "'git checkout $BranchName' failed with exit code $lastExitCode" } "⏳ (5/6) Pulling updates..." & git -C "$RepoDir" pull --recurse-submodules if ($lastExitCode -ne "0") { throw "'git pull' failed with exit code $lastExitCode" } "⏳ (6/6) Updating submodules..." & git -C "$RepoDir" submodule update --init --recursive if ($lastExitCode -ne "0") { throw "'git submodule update' failed with exit code $lastExitCode" } [int]$Elapsed = $StopWatch.Elapsed.TotalSeconds "✔️ switched 📂$RepoDirName repo to '$BranchName' branch in $Elapsed sec" exit 0 # success } catch { "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])" exit 1 }