Update all git/svn/mercurial repositories in any child directory of this script

updateall.sh

#! /bin/bash

#guarantee you are in the directory you are in (src: http://stackoverflow.com/a/246128)
cd -P "$(dirname "$0")"


# basically traverse down all directories until you run across a
# .git/.svn/.hg/.fslckout/CVS directory/file, then update/pull the directory (stop traversing)

#updaterepo <folder type found> <path name to display>
updaterepo()
{
	echo "$(tput setaf 2)Updating repository: $(tput setaf 3)$2$(tput sgr0)"
	
	case "$1" in
	".git")
			# check if git repo is of git-svn type (src: http://stackoverflow.com/a/9086279)
			if [ -d .git/svn  ] && [ x != x"$(ls -A .git/svn/)" ]
			then
				git svn rebase
			else
				git pull
			fi
			;;
	".svn")			svn update;;
	".hg")			hg update;;
	".fslckout")	fossil pull;;
	"CVS")			cvs update -d;;
	esac
	echo
}

#traverses directories looking for .git, .svn, .hg folders or .fslckout file (src: http://steve-parker.org/sh/eg/directories)
#traverse <folder to enter> <path name to display> 
traverse()
{
	cd "$1"
	
	vc=0
	# get all directories in current dir starting with '.' (src: http://superuser.com/a/335397)
	for dir in $(find . -mindepth 1 -maxdepth 1 -name ".*" | perl -pe "s/^..//")
	do
		case "$dir" in
		".git"|".svn"|".hg"|".fslckout"|"CVS")
			vc=1
			updaterepo "$dir" "$2"
			;;
		esac
	done
	
	#do not enter diretory if it is repo controlled
	if [ 1 -ne "$vc" ]
	then
		# loop over directories with spaces (src: http://stackoverflow.com/a/4895508)
		for dir in */
		do
			[ "$dir" != "*/" ] && traverse "$dir" "$2$dir"
		done
	fi
	
	cd ..
}

# get the current directory name (src: http://stackoverflow.com/a/1371283)
traverse . "${PWD##*/}/"

Rev.694f20d includes support for Mountain Lion & BSD based systems. (http://www.dirtdon.com/?p=1452)