# -*- mode: makefile; coding: utf-8 -*-

# Copyright (c) 2007-2008 Fabien Tassin <fta@sofaraway.org>
# Description: The 'compare' module of mozilla-devscripts
#
# 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, or (at
# your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

#####################################################################

# Don't include this file directly, include one of the project.mk
# file instead, which will include this file for you.

# The following target is available to the caller:
# compare: check the difference between what has been installed in debian/tmp
# by the (upstream) make install rule and what has been put in the debs.
#
# The following variable are available:
# COMPARE_FILTER_IN and COMPARE_FILTER_OUT
# By default, both are 'sed' commands that could be augmented (+=) or
# overwritten by the caller.

TEMP           := $(shell echo $$$$)
LIST_INSTALLED := /tmp/installed.$(TEMP)
LIST_IN_DEBS   := /tmp/in_debs.$(TEMP)

PKG_DIRS = $(addprefix debian/,$(shell grep ^Package debian/control | cut -d' ' -f2))

compare:
	@echo "## Compare..."
	@find debian/tmp -type f | cut -d/ -f3- | $(COMPARE_FILTER_IN) | sort > $(LIST_INSTALLED)
	@find $(PKG_DIRS) -type f | cut -d/ -f3- | $(COMPARE_FILTER_OUT) | sort > $(LIST_IN_DEBS)
	@-diff -u $(LIST_INSTALLED) $(LIST_IN_DEBS) | grep -E '^(\+|-).' | tail -n +3
	@rm -f $(LIST_INSTALLED) $(LIST_IN_DEBS)
	@echo "## End of Compare"