source: trunk/debathena/debathena/config-package-dev/check-files.mk @ 23076

Revision 23076, 3.6 KB checked in by tabbott, 16 years ago (diff)
Improve config-package-dev documentation and examples.
RevLine 
[22854]1# -*- mode: makefile; coding: utf-8 -*-
2# Copyright © 2007-2008 Anders Kaseorg <andersk@mit.edu> and
3#                       Tim Abbott <tabbott@mit.edu>
4#
5# This program is free software; you can redistribute it and/or
6# modify it under the terms of the GNU General Public License as
7# published by the Free Software Foundation; either version 2, or (at
8# your option) any later version.
9#
10# This program is distributed in the hope that it will be useful, but
11# WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13# General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
16# along with this program; if not, write to the Free Software
17# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18# 02111-1307 USA.
19
[23076]20# Don't include check-files.mk in your rules files directly; instead
21# use config-package.mk.
22
23# check-files.mk is used to verify that files on local disk have not
24# been modified from the upstream packaged version.  Its only API
25# function is adding the following function as a dependency:
26#
27# $(call debian_check_files,filename)
28#
29#   Returns the path to a copy of filename that is verified to be
30# unmodified from the version shipped by the distribution (by checking
31# md5sums).  The function causes the package to fail to build if the
32# relevant configuration file has been modified on the build machine.
33
[22854]34ifndef _cdbs_rules_check_files
35_cdbs_rules_check_files = 1
36
37include /usr/share/cdbs/1/rules/divert.mk
38
[23076]39DEB_CHECK_FILES_TMPDIR = debian/check_file_copies
[22854]40
41debian_check_files_source = $(if $(DEB_CHECK_FILES_SOURCE_$(1)),$(DEB_CHECK_FILES_SOURCE_$(1)),$(1))
[22918]42debian_check_files_check = $(call divert_files_replace_name,$(call debian_check_files_source,$(1)))
[22854]43
[23076]44debian_check_files = $(patsubst %,$(DEB_CHECK_FILES_TMPDIR)%,$(1))
45undebian_check_files = $(patsubst $(DEB_CHECK_FILES_TMPDIR)%,%,$(1))
[22854]46
47debian_check_files_tmp = $(patsubst %,%.tmp,$(call debian_check_files,$(1)))
48undebian_check_files_tmp = $(call undebian_check_files,$(patsubst %.tmp,%,$(1)))
49
[23076]50# We need a level of indirection here in order to make sure that
51# normal makefile targets, like "clean", are not affected by the
52# debian_check_files rules.
[22854]53$(call debian_check_files,%): $(call debian_check_files_tmp,%)
54        mv $< $@
55
[23076]56# We check md5sums from both /var/lib/dpkg/info/$(package).md5sums
57# (the md5sums database for non-conffiles) and the conffiles database
58# used for prompting about conffiles being changed (via dpkg-query).
59#
60# There is some wrangling here because the formats of these sources differ.
[22854]61$(call debian_check_files_tmp,%): target = $(call undebian_check_files_tmp,$@)
62$(call debian_check_files_tmp,%): name = $(call debian_check_files_check,$(target))
63$(call debian_check_files_tmp,%): truename = $(shell /usr/sbin/dpkg-divert --truename $(name))
64$(call debian_check_files_tmp,%): package = $(shell dpkg -S $(name) | grep -v "^diversion by" | cut -f1 -d:)
65$(call debian_check_files_tmp,%): $(truename)
66        [ -n $(package) ]
67        mkdir -p $(@D)
68        cp "$(truename)" $@
69        md5=$$(dpkg-query --showformat='$${Conffiles}\n' --show $(package) | \
70            sed -n 's,^ $(name) \([0-9a-f]*\)$$,\1  $@, p'); \
71        if [ -n "$$md5" ]; then \
72            echo "$$md5" | md5sum -c; \
73        elif [ -e /var/lib/dpkg/info/$(package).md5sums ]; then \
74            md5=$$(sed -n 's,^\([0-9a-f]*\)  $(patsubst /%,%,$(name))$$,\1  $@, p' \
75                /var/lib/dpkg/info/$(package).md5sums); \
76            [ -n "$$md5" ] && echo "$$md5" | md5sum -c; \
77        else \
[23076]78            echo "config-package-dev: warning: $(package) does not include md5sums!"; \
79            echo "config-package-dev: warning: md5sum for $(name) not verified."; \
[22854]80        fi
81
82clean::
[23076]83        rm -rf $(DEB_CHECK_FILES_TMPDIR)
[22854]84
85endif
Note: See TracBrowser for help on using the repository browser.