#!/bin/sh
#
# Copyright (c) 2005-2006 Pavel Roskin
#

setglobal OPTIONS_KEEPDASHDASH = ''
setglobal OPTIONS_SPEC = '"\
git-clean [options] <paths>...

Clean untracked files from the working directory

When optional <paths>... arguments are given, the paths
affected are further limited to those that match them.
--
d remove directories as well
f override clean.requireForce and clean anyway
n don't remove anything, just show what would be done
q be quiet, only report errors
x remove ignored files as well
X remove only ignored files'"

setglobal SUBDIRECTORY_OK = 'Yes'
source git-sh-setup
require_work_tree

setglobal ignored = ''
setglobal ignoredonly = ''
setglobal cleandir = ''
setglobal rmf = '"rm -f --'"
setglobal rmrf = '"rm -rf --'"
setglobal rm_refuse = '"echo Not removing'"
setglobal echo1 = '"echo'"

setglobal disabled = $[git config --bool clean.requireForce]

while test $# != 0
{
	match $1 {
	with -d
		setglobal cleandir = '1'
		
	with -f
		setglobal disabled = 'false'
		
	with -n
		setglobal disabled = 'false'
		setglobal rmf = '"echo Would remove'"
		setglobal rmrf = '"echo Would remove'"
		setglobal rm_refuse = '"echo Would not remove'"
		setglobal echo1 = '":'"
		
	with -q
		setglobal echo1 = '":'"
		
	with -x
		setglobal ignored = '1'
		
	with -X
		setglobal ignoredonly = '1'
		
	with --
		shift
		break
		
	with *
		usage # should not happen
		
	}
	shift
}

# requireForce used to default to false but now it defaults to true.
# IOW, lack of explicit "clean.requireForce = false" is taken as
# "clean.requireForce = true".
match $disabled {
with ""
	die "clean.requireForce not set and -n or -f not given; refusing to clean"
	
with "true"
	die "clean.requireForce set and -n or -f not given; refusing to clean"
	
}

if test "$ignored,$ignoredonly" = "1,1" {
	die "-x and -X cannot be set together"
}

if test -z $ignored {
	setglobal excl = '"--exclude-per-directory=.gitignore'"
	setglobal excl_info = '', excludes_file = ''
	if test -f "$GIT_DIR/info/exclude" {
		setglobal excl_info = ""--exclude-from=$GIT_DIR/info/exclude""
	}
	if setglobal cfg_excl = $[git config core.excludesfile] && test -f $cfg_excl
	{
		setglobal excludes_file = ""--exclude-from=$cfg_excl""
	}
	if test $ignoredonly {
		setglobal excl = ""$excl --ignored""
	}
}

git ls-files --others --directory \
	$excl $(excl_info:+"$excl_info") $(excludes_file:+"$excludes_file") \
	-- @Argv |
while read -r file {
	if test -d $file -a ! -L $file {
		if test -z $cleandir {
			$rm_refuse $file
			continue
		}
		$echo1 "Removing $file"
		$rmrf $file
	} else {
		$echo1 "Removing $file"
		$rmf $file
	}
}