PowerShell/Scripts/switch-branch.ps1
2021-10-18 16:46:46 +02:00

59 lines
2.1 KiB
PowerShell
Executable File

<#
.SYNOPSIS
Switches the branch in a Git repository (including submodules)
.DESCRIPTION
This script switches to another branch in a Git repository (including submodules).
.PARAMETER BranchName
Specifies the branch name
.PARAMETER RepoDir
Specifies the path to the Git repository
.EXAMPLE
PS> ./switch-branch main C:\MyRepo
.NOTES
Author: Markus Fleschutz · License: CC0
.LINK
https://github.com/fleschutz/PowerShell
#>
param([string]$BranchName = "", [string]$RepoDir = "$PWD")
try {
if ($BranchName -eq "") { $BranchName = read-host "Enter name of branch to switch to" }
$StopWatch = [system.diagnostics.stopwatch]::startNew()
"⏳ Checking requirements [step 1/3]... "
$RepoDir = resolve-path "$RepoDir"
if (-not(test-path "$RepoDir" -pathType container)) { throw "Can't access directory: $RepoDir" }
set-location "$RepoDir"
$Null = (git --version)
if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
$Result = (git status)
if ($lastExitCode -ne "0") { throw "'git status' failed in $RepoDir" }
if ("$Result" -notmatch "nothing to commit, working tree clean") { throw "Git repository is NOT clean: $Result" }
"⏳ Fetching latest updates and switching branch [step 2/3]..."
& git fetch --all --recurse-submodules --prune --prune-tags --force
if ($lastExitCode -ne "0") { throw "'git fetch' failed" }
& git checkout --recurse-submodules "$BranchName"
if ($lastExitCode -ne "0") { throw "'git checkout $BranchName' failed" }
"⏳ Pulling updates and updating submodules [step 3/3]..."
& git pull --recurse-submodules
if ($lastExitCode -ne "0") { throw "'git pull' failed" }
& git submodule update --init --recursive
if ($lastExitCode -ne "0") { throw "'git submodule update' failed" }
$RepoDirName = (get-item "$RepoDir").Name
[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
"✔️ switched Git repository 📂$RepoDirName to $BranchName branch in $Elapsed sec"
exit 0 # success
} catch {
"⚠️ Error: $($Error[0]) ($($MyInvocation.MyCommand.Name):$($_.InvocationInfo.ScriptLineNumber))"
exit 1
}