esed.eclass

esed.eclass (text/plain), 1.19 KB, created by kalium on 2006-09-05 06:17:11 UTC

# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/subversion.eclass,v 1.33 2006/07/22 13:52:38 hattya Exp $

## --------------------------------------------------------------------------- #
# Author: Mark Stier
#
# sed wrapper with useful error return codes.
#
# Usage: mysed filename expr1 [expr2 ...]
#
# Returns 0 if all expressions have led to a replacement, 1 if one or more
# expressions did not lead to a match.
#
## --------------------------------------------------------------------------- #

#EXPORT_FUNCTIONS esed

HOMEPAGE=""
DESCRIPTION=""

DEPEND=">=sys-apps/sed-4.1.4"

esed() {
	local file=$1
	einfo "esed working on $file:"
	local arg
	local ret=0
	local c=0
	shift
	for arg in "$@"; do
		let "c++"
		local lret=0
		ebegin "  applying expression \"$arg\""
		sed -i.sedbak "$file" -e "${arg}"
		[[ $? -ne 0 ]] && lret=1
		cmp "$file" "$file.sedbak" >/dev/null 2>&1 && lret=1
		rm -f "$file.sedbak"
		[[ $lret -ne 0 ]] && let "ret++"
		eend $lret
	done
	if [[ $ret -eq 0 ]]; then
		einfo "All expressions applied successfully."
	else
		eerror "$ret out of $c expressions failed."
	fi
	return $ret
}