#!/bin/bash
#
#  svnemboss.sh - helper app for subversion vendor trees
#  Copyright (C) 2007  Clifford Wolf <clifford@clifford.at>
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.

if [ ! -d "$1" -o ! -d "$2/.svn" ]; then
	echo "" >&2
	echo "Usage: $0 MASTER-PATH WC-PATH" >&2
	echo "" >&2
	echo "Make all neccessary modifications in the working copy WC-PATH" >&2
	echo "to make it identical with MASTER-PATH. This is e.g. useful for" >&2
	echo "updating vendor trees:" >&2
	echo "" >&2
	echo "	tar xjf linux-2.6.21.5.tar.bz2" >&2
	echo "	svn co http://my.example.org/repository/vendor/linux-2.6.21.4 linux-wc" >&2
	echo "" >&2
	echo "	$0 linux-2.6.21.5 linux-wc" >&2
	echo "	svn cp linux-wc http://my.example.org/repository/vendor/linux-2.6.21.5" >&2
	echo "" >&2
	exit 1
fi

set -e

master="$1"
target="$2"

echo "Synchronizing..."
rsync -rltD --delete --itemize-changes --exclude .svn --exclude .git "$master/." "$target/."

echo "Issuing SVN ADD commands..."
svn st "$2" | grep '^?' | cut -c8- | sed 's,^ *,,' | xargs -r -d '\n' svn add

echo "Issuing SVN DEL commands..."
svn st "$2" | grep '^!' | cut -c8- | sed 's,^ *,,' | xargs -r -d '\n' svn del

echo "READY."