/usr/share/cdbs/1/rules/displace.mk is in config-package-dev 5.1.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | # -*- mode: makefile; coding: utf-8 -*-
# Copyright © 2007-2008 Anders Kaseorg <andersk@mit.edu> and
# Tim Abbott <tabbott@mit.edu>
#
# 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.
# Don't include displace.mk in your rules files directly; instead use
# config-package.mk.
# displace.mk handles the low-level diversion logic. It includes
# displace.sh.in in the postinst and prerm scripts, and adds calls to
# the functions in displace.sh.in to add and remove diversions and
# symlinks at the appropriate points.
ifndef _cdbs_rules_displace
_cdbs_rules_displace = 1
include /usr/share/cdbs/1/rules/debhelper.mk
CDBS_BUILD_DEPENDS := $(CDBS_BUILD_DEPENDS), config-package-dev (>= 5.0~)
# displace.sh.in is included in the postinst/prerm scripts of packages
# installing diversions and symlinks using config-package-dev.
DEB_DISPLACE_SCRIPT = /usr/share/debhelper/autoscripts/displace.sh.in
# script used to encode the path of a file uniquely in a valid virtual
# package name.
DEB_DISPLACE_ENCODER = /usr/share/config-package-dev/encode
DEB_DISPLACE_PACKAGES += $(foreach package,$(DEB_ALL_PACKAGES), \
$(if $(DEB_TRANSFORM_FILES_$(package)),$(package), \
$(if $(DEB_HIDE_FILES_$(package)),$(package), \
$(if $(DEB_UNHIDE_FILES_$(package)),$(package), \
$(if $(DEB_UNDISPLACE_FILES_$(package)),$(package), \
$(if $(DEB_DISPLACE_FILES_$(package)),$(package), \
$(if $(DEB_REMOVE_FILES_$(package)),$(package), \
$(if $(DEB_UNREMOVE_FILES_$(package)),$(package), \
$(if $(DEB_UNDIVERT_FILES_$(package)),$(package), \
$(if $(DEB_DIVERT_FILES_$(package)),$(package)))))))))))
ifeq ($(DEB_DISPLACE_EXTENSION),)
ifeq ($(DEB_DIVERT_EXTENSION),)
DEB_DISPLACE_EXTENSION = .divert
else
DEB_DISPLACE_EXTENSION = $(DEB_DIVERT_EXTENSION)
endif
endif
# Replace only the last instance of DEB_DISPLACE_EXTENSION in the
# filename, to make it possible to displace /path/foo.divert to
# foo.divert.divert-orig
displace_files_replace_name = $(shell echo $(1) | perl -pe 's/(.*)\Q$(DEB_DISPLACE_EXTENSION)\E/$$1$(2)/')
# Encode a full path into the path it should be diverted to if it's
# hidden
hide_files_name = /usr/share/$(cdbs_curpkg)/$(shell $(DEB_DISPLACE_ENCODER) $(1))
dh_compat_6 := $(shell if [ '$(DH_COMPAT)' -ge 6 ]; then echo y; fi)
reverse = $(foreach n,$(shell seq $(words $(1)) -1 1),$(word $(n),$(1)))
reverse_dh_compat_6 = $(if $(dh_compat_6),$(call reverse,$(1)),$(1))
debian-displace/%: package = $(subst debian-displace/,,$@)
debian-displace/%: displace_files = $(DEB_DISPLACE_FILES_$(package)) $(DEB_DIVERT_FILES_$(package)) $(DEB_TRANSFORM_FILES_$(package))
debian-displace/%: displace_hide_files = $(DEB_HIDE_FILES_$(package)) $(DEB_REMOVE_FILES_$(package))
debian-displace/%: displace_undisplace_files = $(DEB_UNDISPLACE_FILES_$(package)) $(DEB_UNDIVERT_FILES_$(package))
debian-displace/%: displace_unhide_files = $(DEB_UNHIDE_FILES_$(package)) $(DEB_UNREMOVE_FILES_$(package))
debian-displace/%: displace_files_all = $(strip $(displace_files) $(displace_hide_files) $(displace_undisplace_files) $(displace_unhide_files))
debian-displace/%: displace_files_thispkg = $(strip $(displace_files) $(displace_hide_files))
$(patsubst %,debian-displace/%,$(DEB_DISPLACE_PACKAGES)) :: debian-displace/%:
# Writing shell scripts in makefiles sucks. Remember to $$ shell
# variables and include \ at the end of each line.
# Add code to postinst to add/remove diversions and symlinks as appropriate
set -e; \
{ \
sed 's/#PACKAGE#/$(cdbs_curpkg)/g; s/#DEB_DISPLACE_EXTENSION#/$(DEB_DISPLACE_EXTENSION)/g' $(DEB_DISPLACE_SCRIPT); \
$(if $(displace_files_all), \
echo 'if [ "$$1" = "configure" ]; then'; \
$(foreach file,$(displace_undisplace_files), \
echo " check_undisplace_unlink $(call displace_files_replace_name,$(file), )"; )\
$(foreach file,$(displace_unhide_files), \
echo " check_undisplace_unhide $(file) $(call hide_files_name,$(file))"; )\
$(foreach file,$(displace_files), \
echo " displace_link $(call displace_files_replace_name,$(file), )";) \
$(foreach file,$(displace_hide_files), \
mkdir -p debian/$(cdbs_curpkg)/usr/share/$(cdbs_curpkg); \
echo " displace_hide $(file) $(call hide_files_name,$(file))";) \
echo 'fi'; \
) \
} >> $(CURDIR)/debian/$(cdbs_curpkg).postinst.debhelper
# Add code to prerm script to undo diversions and symlinks when package is removed.
set -e; \
{ \
$(if $(dh_compat_6),, \
if [ -e $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper ]; then \
cat $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper; \
fi;) \
sed 's/#PACKAGE#/$(cdbs_curpkg)/g; s/#DEB_DISPLACE_EXTENSION#/$(DEB_DISPLACE_EXTENSION)/g' $(DEB_DISPLACE_SCRIPT); \
$(if $(displace_files_thispkg), \
echo 'if [ "$$1" = "remove" ] || [ "$$1" = "deconfigure" ]; then'; \
$(foreach file,$(call reverse_dh_compat_6,$(displace_files)), \
echo " undisplace_unlink $(call displace_files_replace_name,$(file), )";) \
$(foreach file,$(call reverse_dh_compat_6,$(displace_hide_files)), \
echo " undisplace_unhide $(file) $(cdbs_curpkg)";) \
echo 'fi'; \
) \
$(if $(dh_compat_6), \
if [ -e $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper ]; then \
cat $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper; \
fi;) \
} >> $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper.new
mv $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper.new \
$(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper
# Add an encoding of the names of the diverted files to the Provides:
# and Conflicts: lists. This prevents two packages diverting the same
# file from being installed simultaneously (it cannot work, and this
# produces a much less ugly error). Requires in debian/control:
# Provides: ${diverted-files}
# Conflicts: ${diverted-files}
set -e; \
{ \
echo -n "diverted-files="; \
$(foreach file,$(displace_files_thispkg),\
echo -n "diverts-"; \
${DEB_DISPLACE_ENCODER} "$(call displace_files_replace_name,$(file))"; \
echo -n ", ";) \
echo; \
} >> $(CURDIR)/debian/$(cdbs_curpkg).substvars
$(patsubst %,binary-post-install/%,$(DEB_DISPLACE_PACKAGES)) :: binary-post-install/%: debian-displace/%
endif
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