gitfileget

#!/usr/bin/env rc

f=getfile
if(~ $1 -d){
	f=getdir
	shift
}

if(! ~ $#* 3){
	echo 'usage: gitfileget [-d] root treeish path' >[1=2]
	exit usage
}

cd $1

fn getfile {
	git show $1:$2
}

fn getdir {
	git ls-tree $1 $2/ | awk '
		{
			sub("'$2'/", "", $4)
			if($2 == "tree")
				print $4 "/"
			else
				print $4
		}'
}

$f $2 $3