#!/bin/sh
#
# Copyright (c) 2005-2010, Apple Computer, Inc. All rights reserved.
# 
# @APPLE_BSD_LICENSE_HEADER_START@
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
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#     notice, this list of conditions and the following disclaimer. 
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#     documentation and/or other materials provided with the distribution. 
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#     its contributors may be used to endorse or promote products derived
#     from this software without specific prior written permission. 
# 
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# POSSIBILITY OF SUCH DAMAGE.
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###
### Given a list of filenames, this function will
### find the largest number after the '~' and return
### its value. Used to calculate a non-conflicting build number.
###
function GetBuildVersion() {
	local maxbuild="0"
	if [ $# -eq 0 ]; then
		echo ""
		return 0
	fi
	for X in $* ; do
		# Grab the numeric portion after the '~'
		build=$(echo $X | sed -e 's/^.*~\([0-9]*\)$/\1/')
		# If the regex fails, it somtimes prints the same line
		if [ "$build" != "$X" -a "$build" != "" ]; then
			# [ seems to things on the left of the -a, 
			# so do this in a different statement to avoid
			# errors about non-numeric values of $build
			if [ "$build" -gt "$maxbuild" ]; then
				maxbuild="$build"
			fi
		fi
	done
	echo $maxbuild
}

###
### Trap calls to ditto since it is only available on Mac OS X
### Warning: only supports the directory-to-directory form
function ditto() {
	local srcdir="$1"
	local dstdir="$2"
	if [ -x /usr/bin/ditto ]; then
		/usr/bin/ditto "$srcdir" "$dstdir"
	else
		tar c -C "$srcdir" . | tar xf - -C "$dstdir"
	fi
}

CURLARGS=${CURLARGS:-}