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# -*- mode: makefile; coding: utf-8 -*-
# Copyright © 2002,2003 Colin Walters <walters@debian.org>
# Description: A sample patch system which uses separate files in debian/patches
# Patch suffix is specified by DEB_PATCH_SUFFIX. Defaults to .patch.
#
# 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., 59 Temple Place, Suite 330, Boston, MA
# 02111-1307 USA.
#PATH_RULES#
ifndef _cdbs_rules_patchsys
_cdbs_rules_patchsys = 1
include $(_cdbs_rules_path)/buildcore.mk$(_cdbs_makefile_suffix)
ifeq ($(_cdbs_included_patchsys),)
_cdbs_included_patchsys = 1
_cdbs_patch_system_apply_rule = apply-patches
_cdbs_patch_system_unapply_rule = reverse-patches
DEB_PATCH_SUFFIX ?= .diff .diff.gz .diff.bz2 .diff.uu .patch .patch.gz .patch.bz2 .patch.uu
DEB_PATCHDIRS ?= debian/patches
close_parenthesis ?= )
DEB_PATCHES := $(shell\
for dir in $(DEB_PATCHDIRS) ; do \
for file in $$dir/* ; do \
for suffix in $(DEB_PATCH_SUFFIX) ; do \
case $$file in *$$suffix$(close_parenthesis) echo $$file ;; esac ; \
done ; \
done ; \
done)
# if we have any patches, check if some are patching config.{guess,sub,rpath}
# and print a warning
ifneq (, $(DEB_PATCHES))
CDBS_BUILD_DEPENDS := $(CDBS_BUILD_DEPENDS), patchutils (>= 0.2.25)
evil_patches_that_do_nasty_things := $(shell\
if lsdiff=`which lsdiff` ; then \
$$lsdiff -H $(DEB_PATCHES) \
| egrep "/config\.(guess|sub|rpath)$$" | tr "\n" " " ; \
fi)
ifneq (, $(evil_patches_that_do_nasty_things))
$(warning WARNING: The following patches are modifying auto-updated files. Please exclude the following files from your patch: $(evil_patches_that_do_nasty_things))
endif
endif
post-patches:: apply-patches
cleanbuilddir:: reverse-patches
for dir in $(DEB_PATCHDIRS) ; do \
rm -f $$dir/*.log ; \
done
# It's best to try the patch levels in this weird order, to avoid
# problems with patches that only create new files (see bug #365524).
cdbs_simple_patchsys_levels = 1 0 2
cdbs_update_stamp = if [ "$@" = "debian/stamp-patched" ]; then touch $(1); elif [ "$@" = "reverse-patches" ]; then rm -f $(1); fi
cdbs_patch_stamp_file = debian/stamp-patch-$$(echo $$patch | tr '/' '=')
# The patch subsystem
apply-patches: pre-build debian/stamp-patched
debian/stamp-patched: $(DEB_PATCHES)
debian/stamp-patched reverse-patches:
$(MAKE) -f debian/rules reverse-config
if [ "$@" = "reverse-patches" ]; then rm -f debian/stamp-patched; fi
@echo "patches: $(DEB_PATCHES)"
@set -e ; reverse=""; patches="$(DEB_PATCHES)"; \
if [ "$@" = "reverse-patches" ]; then \
reverse="-R"; \
for patch in $$patches; do reversepatches="$$patch $$reversepatches"; done; \
patches="$$reversepatches"; \
fi; \
for patch in $$patches; do \
if [ "$@" = "reverse-patches" ]; then \
if [ ! -e $(cdbs_patch_stamp_file) ]; then \
echo "Patch $$patch is not applied."; continue; \
fi; \
else \
if [ -e $(cdbs_patch_stamp_file) ]; then \
echo "Patch $$patch is already applied."; continue; \
fi; \
fi; \
case $$patch in \
*.gz) cat=zcat ;; \
*.bz2) cat=bzcat ;; \
*.uu) cat="uudecode -o -" ;; \
*) cat=cat ;; \
esac; \
level=$$(head $$patch | egrep '^#DPATCHLEVEL=' | cut -f 2 -d '='); \
reverse=""; \
if [ "$@" = "reverse-patches" ]; then reverse="-R"; fi; \
success=""; \
if [ -z "$$level" ]; then \
echo -n "Trying "; if test -n "$$reverse"; then echo -n "reverse "; fi; echo -n "patch $$patch at level "; \
for level in $(cdbs_simple_patchsys_levels); do \
if test -z "$$success"; then \
echo -n "$$level ... "; \
if [ "$(DEB_PATCHDIRS_READONLY)" = "yes" ] ; then \
logfile="/dev/null" ; \
else \
logfile="$$patch.level-$$level.log" ; \
fi ; \
if $$cat $$patch | patch -d $(DEB_SRCDIR) $$reverse -E --dry-run -p$$level 1>$$logfile 2>&1; then \
if $$cat $$patch | patch -d $(DEB_SRCDIR) $$reverse -E --no-backup-if-mismatch -V never -p$$level 1>$$logfile 2>&1; then \
success=yes; \
$(call cdbs_update_stamp,$(cdbs_patch_stamp_file)); \
echo "success."; \
fi; \
fi; \
fi; \
done; \
if test -z "$$success"; then \
echo "failure."; \
exit 1; \
fi; \
else \
echo -n "Trying patch $$patch at level $$level ... "; \
echo -n "$$level ... "; \
if [ "$(DEB_PATCHDIRS_READONLY)" = "yes" ] ; then \
logfile="/dev/null" ; \
else \
logfile="$$patch.log" ; \
fi ; \
if $$cat $$patch | patch -d $(DEB_SRCDIR) $$reverse -E --no-backup-if-mismatch -V never -p$$level 1>$$logfile 2>&1; then \
$(call cdbs_update_stamp,$(cdbs_patch_stamp_file)); \
echo "success."; \
else \
echo "failure:"; \
cat $$logfile; \
exit 1; \
fi; \
fi; \
done
if [ "$@" != "reverse-patches" ]; then touch debian/stamp-patched; fi
# after reverting patches, we don't need update-config because:
# - the tree is already in a consistent state.
# - the initialisation of this routine is already in charge of making
# the tree not only consistent, but also prepared to accept patching.
if [ "$@" != "reverse-patches" ] ; then \
$(MAKE) -f debian/rules update-config ; \
fi
# standard targets
.PHONY: patch unpatch
patch: apply-patches
unpatch: reverse-patches
endif
endif
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