source: config-package-dev/displace.mk @ 434cb01

Revision 434cb01, 6.8 KB checked in by Geoffrey Thomas <geofft@…>, 4 years ago (diff)
Bump CDBS automatic build dep, because 5.2 has new API
  • Property mode set to 100644
RevLine 
[8dc79e2]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
20# Don't include displace.mk in your rules files directly; instead use
21# config-package.mk.
22
23# displace.mk handles the low-level diversion logic.  It includes
24# displace.sh.in in the postinst and prerm scripts, and adds calls to
25# the functions in displace.sh.in to add and remove diversions and
26# symlinks at the appropriate points.
27
28ifndef _cdbs_rules_displace
29_cdbs_rules_displace = 1
30
31include /usr/share/cdbs/1/rules/debhelper.mk
32
[434cb01]33CDBS_BUILD_DEPENDS := $(CDBS_BUILD_DEPENDS), config-package-dev (>= 5.2~)
[8dc79e2]34
35# displace.sh.in is included in the postinst/prerm scripts of packages
[5909549]36# installing diversions and symlinks using config-package-dev.
[4c60aa4]37DEB_DISPLACE_SCRIPT = /usr/share/debhelper/autoscripts/displace.sh.in
[8dc79e2]38# script used to encode the path of a file uniquely in a valid virtual
39# package name.
40DEB_DISPLACE_ENCODER = /usr/share/config-package-dev/encode
41
42DEB_DISPLACE_PACKAGES += $(foreach package,$(DEB_ALL_PACKAGES), \
43    $(if $(DEB_TRANSFORM_FILES_$(package)),$(package), \
44    $(if $(DEB_HIDE_FILES_$(package)),$(package), \
45    $(if $(DEB_UNHIDE_FILES_$(package)),$(package), \
46    $(if $(DEB_UNDISPLACE_FILES_$(package)),$(package), \
[dcab8f3]47    $(if $(DEB_DISPLACE_FILES_$(package)),$(package), \
48    $(if $(DEB_REMOVE_FILES_$(package)),$(package), \
49    $(if $(DEB_UNREMOVE_FILES_$(package)),$(package), \
50    $(if $(DEB_UNDIVERT_FILES_$(package)),$(package), \
51    $(if $(DEB_DIVERT_FILES_$(package)),$(package)))))))))))
[8dc79e2]52
53ifeq ($(DEB_DISPLACE_EXTENSION),)
[dcab8f3]54ifeq ($(DEB_DIVERT_EXTENSION),)
[8dc79e2]55DEB_DISPLACE_EXTENSION = .divert
[dcab8f3]56else
57DEB_DISPLACE_EXTENSION = $(DEB_DIVERT_EXTENSION)
58endif
[8dc79e2]59endif
60
[6fed99a]61ifeq ($(filter .%,$(DEB_DISPLACE_EXTENSION)),)
62DEB_DISPLACE_EXTENSION := .$(DEB_DISPLACE_EXTENSION)
63endif
64
[8dc79e2]65# Replace only the last instance of DEB_DISPLACE_EXTENSION in the
66# filename, to make it possible to displace /path/foo.divert to
67# foo.divert.divert-orig
68displace_files_replace_name = $(shell echo $(1) | perl -pe 's/(.*)\Q$(DEB_DISPLACE_EXTENSION)\E/$$1$(2)/')
69
70# Encode a full path into the path it should be diverted to if it's
71# hidden
72hide_files_name = /usr/share/$(cdbs_curpkg)/$(shell $(DEB_DISPLACE_ENCODER) $(1))
73
74dh_compat_6 := $(shell if [ '$(DH_COMPAT)' -ge 6 ]; then echo y; fi)
75
76reverse = $(foreach n,$(shell seq $(words $(1)) -1 1),$(word $(n),$(1)))
77reverse_dh_compat_6 = $(if $(dh_compat_6),$(call reverse,$(1)),$(1))
78
79debian-displace/%: package = $(subst debian-displace/,,$@)
[dcab8f3]80debian-displace/%: displace_files = $(DEB_DISPLACE_FILES_$(package)) $(DEB_DIVERT_FILES_$(package)) $(DEB_TRANSFORM_FILES_$(package))
81debian-displace/%: displace_hide_files = $(DEB_HIDE_FILES_$(package)) $(DEB_REMOVE_FILES_$(package))
82debian-displace/%: displace_undisplace_files = $(DEB_UNDISPLACE_FILES_$(package)) $(DEB_UNDIVERT_FILES_$(package))
83debian-displace/%: displace_unhide_files = $(DEB_UNHIDE_FILES_$(package)) $(DEB_UNREMOVE_FILES_$(package))
[8dc79e2]84debian-displace/%: displace_files_all = $(strip $(displace_files) $(displace_hide_files) $(displace_undisplace_files) $(displace_unhide_files))
85debian-displace/%: displace_files_thispkg = $(strip $(displace_files) $(displace_hide_files))
86$(patsubst %,debian-displace/%,$(DEB_DISPLACE_PACKAGES)) :: debian-displace/%:
87#   Writing shell scripts in makefiles sucks.  Remember to $$ shell
88#   variables and include \ at the end of each line.
[5909549]89# Add code to postinst to add/remove diversions and symlinks as appropriate
[8dc79e2]90        set -e; \
91        { \
92            sed 's/#PACKAGE#/$(cdbs_curpkg)/g; s/#DEB_DISPLACE_EXTENSION#/$(DEB_DISPLACE_EXTENSION)/g' $(DEB_DISPLACE_SCRIPT); \
93            $(if $(displace_files_all), \
94                echo 'if [ "$$1" = "configure" ]; then'; \
95                $(foreach file,$(displace_undisplace_files), \
96                    echo "    check_undisplace_unlink $(call displace_files_replace_name,$(file), )"; )\
97                $(foreach file,$(displace_unhide_files), \
98                    echo "    check_undisplace_unhide $(file) $(call hide_files_name,$(file))"; )\
99                $(foreach file,$(displace_files), \
100                    echo "    displace_link $(call displace_files_replace_name,$(file), )";) \
101                $(foreach file,$(displace_hide_files), \
102                    mkdir -p debian/$(cdbs_curpkg)/usr/share/$(cdbs_curpkg); \
103                    echo "    displace_hide $(file) $(call hide_files_name,$(file))";) \
104                echo 'fi'; \
105            ) \
106        } >> $(CURDIR)/debian/$(cdbs_curpkg).postinst.debhelper
[5909549]107# Add code to prerm script to undo diversions and symlinks when package is removed.
[8dc79e2]108        set -e; \
109        { \
110            $(if $(dh_compat_6),, \
111                if [ -e $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper ]; then \
112                    cat $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper; \
113                fi;) \
114            sed 's/#PACKAGE#/$(cdbs_curpkg)/g; s/#DEB_DISPLACE_EXTENSION#/$(DEB_DISPLACE_EXTENSION)/g' $(DEB_DISPLACE_SCRIPT); \
115            $(if $(displace_files_thispkg), \
116                echo 'if [ "$$1" = "remove" ] || [ "$$1" = "deconfigure" ]; then'; \
117                $(foreach file,$(call reverse_dh_compat_6,$(displace_files)), \
118                    echo "    undisplace_unlink $(call displace_files_replace_name,$(file), )";) \
119                $(foreach file,$(call reverse_dh_compat_6,$(displace_hide_files)), \
120                    echo "    undisplace_unhide $(file) $(cdbs_curpkg)";) \
121                echo 'fi'; \
122            ) \
123            $(if $(dh_compat_6), \
124                if [ -e $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper ]; then \
125                    cat $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper; \
126                fi;) \
127        } >> $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper.new
128        mv $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper.new \
129            $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper
130# Add an encoding of the names of the diverted files to the Provides:
131# and Conflicts: lists.  This prevents two packages diverting the same
132# file from being installed simultaneously (it cannot work, and this
133# produces a much less ugly error).  Requires in debian/control:
134#   Provides: ${diverted-files}
135#   Conflicts: ${diverted-files}
136        set -e; \
137        { \
138            echo -n "diverted-files="; \
139            $(foreach file,$(displace_files_thispkg),\
140                echo -n "diverts-"; \
141                ${DEB_DISPLACE_ENCODER} "$(call displace_files_replace_name,$(file))"; \
142                echo -n ", ";) \
143            echo; \
144        } >> $(CURDIR)/debian/$(cdbs_curpkg).substvars
145
146$(patsubst %,binary-post-install/%,$(DEB_DISPLACE_PACKAGES)) :: binary-post-install/%: debian-displace/%
147
148endif
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