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# debian-save-restore.mk -- Save and restore original files
#
# Copyright
#
# Copyright (C) 2008-2011 Jari Aalto <jari.aalto@cante.net>
#
# License
#
# 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.
#
# 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, see <http://www.gnu.org/licenses/>.
#
# Description
#
# This is GNU makefile part, that defines common variables,
# targets and macros to be used from debian/rules.
#
# Usage (format 3.0)
#
# FILE_LIST_PRESERVE = <file list of upstream files>
#
# override_dh_clean:
# $(file-state-save)
# dh_clean
# $(file-state-restore-copy)
#
# Alternative usage, in case more file updates happens during configure etc.
#
# override_dh_auto_configure:
# $(file-state-save)
# <configure call>
#
# binary-arch:
# $(file-state-restore)
# ...
define file-state-save
# save files
suffix=.original; \
for file in $(FILE_LIST_PRESERVE); \
do \
backup=/tmp/$$(echo $$file | sed 's,/,%,g')$$suffix; \
if [ -f "$$file" ] && [ ! -f "$$backup" ]; then \
cp --archive --verbose "$$file" "$$backup"; \
fi; \
done
endef
define file-state-restore-copy
# restore files
suffix=.original; \
for file in $(FILE_LIST_PRESERVE); \
do \
backup=/tmp/$$(echo $$file | sed 's,/,%,g')$$suffix; \
if [ -f "$$backup" ]; then \
dir=$$(dirname "$$file"); \
if [ "$$dir" != "." ]; then \
mkdir -p "$$dir"; \
fi; \
cp --archive --verbose "$$backup" "$$file"; \
fi; \
done
endef
define file-state-restore
# restore files
suffix=.original; \
for file in $(FILE_LIST_PRESERVE); \
do \
backup=/tmp/$$(echo $$file | sed 's,/,%,g')$$suffix; \
if [ -f "$$backup" ]; then \
dir=$$(dirname "$$file"); \
if [ "$$dir" != "." ]; then \
mkdir -p "$$dir"; \
fi; \
cp --archive --verbose "$$backup" "$$file"; \
rm "$$backup"; \
fi; \
done
endef
# End of file
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