#!/bin/powershell
<#
.SYNTAX         ./clean-branch.ps1 [<repo-dir>]
.DESCRIPTION	cleans the current Git branch including submodules from generated files (e.g. for a fresh build)
.LINK		https://github.com/fleschutz/PowerShell
.NOTES		Author:	Markus Fleschutz / License: CC0
#>

param($RepoDir = "$PWD")

try {
	& git --version
} catch {
	write-error "ERROR: can't execute 'git' - make sure Git is installed and available"
	exit 1
}

try {
	write-progress "Cleaning current branch in repository $RepoDir..."
	set-location $RepoDir
	
	& git clean -fdx # force + recurse into dirs + don't use the standard ignore rules
	if ($lastExitCode -ne "0") { throw "'git clean -fdx' failed" }

	& git submodule foreach --recursive git clean -fdx 
	if ($lastExitCode -ne "0") { throw "'git clean -fdx' in submodules failed" }

	write-host -foregroundColor green "OK - cleaned current branch in repository $RepoDir"
	exit 0
} catch {
	write-error "ERROR: line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}