Pull-Repo

Pulls updates into a Git repo

Script

param([string]$path = "$PWD")

try {
	$stopWatch = [system.diagnostics.stopwatch]::startNew()

	Write-Host "? (1/4) 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 "? (2/4) Checking local repository...     $path"
	if (-not(Test-Path "$path" -pathType container)) { throw "Can't access folder: $path" }
	$result = (git -C "$path" status)
	if ("$result" -match "HEAD detached at ") { throw "Nothing to pull due to detached HEAD state (not on a branch!)" }
	$dirName = (Get-Item "$path").Name

	Write-Host "? (3/4) Pulling 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 "$path" pull --recurse-submodules=yes
	if ($lastExitCode -ne 0) { throw "'git pull' failed with exit code $lastExitCode" }

	Write-Host "? (4/4) Updating submodules... "
	& git -C "$path" submodule update --init --recursive
	if ($lastExitCode -ne 0) { throw "'git submodule update' failed with exit code $lastExitCode" }

	[int]$elapsed = $stopWatch.Elapsed.TotalSeconds
	"? Repo '$dirName' updated in $($elapsed)s."
	exit 0 # success
} catch {
	"?? ERROR: $($Error[0]) (script line $($_.InvocationInfo.ScriptLineNumber))"
	exit 1
}

Customize

path string

Specifies the file path to the local Git repository (default is working directory)