Commit | Line | Data |
---|---|---|
51ae82e4 JR |
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 | ||
28 | ifndef _cdbs_rules_displace | |
29 | _cdbs_rules_displace = 1 | |
30 | ||
31 | include /usr/share/cdbs/1/rules/debhelper.mk | |
32 | ||
33 | CDBS_BUILD_DEPENDS := $(CDBS_BUILD_DEPENDS), config-package-dev (>= 5.0~) | |
34 | ||
35 | # displace.sh.in is included in the postinst/prerm scripts of packages | |
36 | # installing diversions and symlinks using config-package-dev. | |
37 | DEB_DISPLACE_SCRIPT = /usr/share/debhelper/autoscripts/displace.sh.in | |
38 | # script used to encode the path of a file uniquely in a valid virtual | |
39 | # package name. | |
40 | DEB_DISPLACE_ENCODER = /usr/share/config-package-dev/encode | |
41 | ||
42 | DEB_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), \ | |
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)),$(package))))))))))) | |
52 | ||
53 | ifeq ($(DEB_DISPLACE_EXTENSION),) | |
54 | ifeq ($(DEB_DIVERT_EXTENSION),) | |
55 | DEB_DISPLACE_EXTENSION = .divert | |
56 | else | |
57 | DEB_DISPLACE_EXTENSION = $(DEB_DIVERT_EXTENSION) | |
58 | endif | |
59 | endif | |
60 | ||
61 | # Replace only the last instance of DEB_DISPLACE_EXTENSION in the | |
62 | # filename, to make it possible to displace /path/foo.divert to | |
63 | # foo.divert.divert-orig | |
64 | displace_files_replace_name = $(shell echo $(1) | perl -pe 's/(.*)\Q$(DEB_DISPLACE_EXTENSION)\E/$$1$(2)/') | |
65 | ||
66 | # Encode a full path into the path it should be diverted to if it's | |
67 | # hidden | |
68 | hide_files_name = /usr/share/$(cdbs_curpkg)/$(shell $(DEB_DISPLACE_ENCODER) $(1)) | |
69 | ||
70 | dh_compat_6 := $(shell if [ '$(DH_COMPAT)' -ge 6 ]; then echo y; fi) | |
71 | ||
72 | reverse = $(foreach n,$(shell seq $(words $(1)) -1 1),$(word $(n),$(1))) | |
73 | reverse_dh_compat_6 = $(if $(dh_compat_6),$(call reverse,$(1)),$(1)) | |
74 | ||
75 | debian-displace/%: package = $(subst debian-displace/,,$@) | |
76 | debian-displace/%: displace_files = $(DEB_DISPLACE_FILES_$(package)) $(DEB_DIVERT_FILES_$(package)) $(DEB_TRANSFORM_FILES_$(package)) | |
77 | debian-displace/%: displace_hide_files = $(DEB_HIDE_FILES_$(package)) $(DEB_REMOVE_FILES_$(package)) | |
78 | debian-displace/%: displace_undisplace_files = $(DEB_UNDISPLACE_FILES_$(package)) $(DEB_UNDIVERT_FILES_$(package)) | |
79 | debian-displace/%: displace_unhide_files = $(DEB_UNHIDE_FILES_$(package)) $(DEB_UNREMOVE_FILES_$(package)) | |
80 | debian-displace/%: displace_files_all = $(strip $(displace_files) $(displace_hide_files) $(displace_undisplace_files) $(displace_unhide_files)) | |
81 | debian-displace/%: displace_files_thispkg = $(strip $(displace_files) $(displace_hide_files)) | |
82 | $(patsubst %,debian-displace/%,$(DEB_DISPLACE_PACKAGES)) :: debian-displace/%: | |
83 | # Writing shell scripts in makefiles sucks. Remember to $$ shell | |
84 | # variables and include \ at the end of each line. | |
85 | # Add code to postinst to add/remove diversions and symlinks as appropriate | |
86 | set -e; \ | |
87 | { \ | |
88 | sed 's/#PACKAGE#/$(cdbs_curpkg)/g; s/#DEB_DISPLACE_EXTENSION#/$(DEB_DISPLACE_EXTENSION)/g' $(DEB_DISPLACE_SCRIPT); \ | |
89 | $(if $(displace_files_all), \ | |
90 | echo 'if [ "$$1" = "configure" ]; then'; \ | |
91 | $(foreach file,$(displace_undisplace_files), \ | |
92 | echo " check_undisplace_unlink $(call displace_files_replace_name,$(file), )"; )\ | |
93 | $(foreach file,$(displace_unhide_files), \ | |
94 | echo " check_undisplace_unhide $(file) $(call hide_files_name,$(file))"; )\ | |
95 | $(foreach file,$(displace_files), \ | |
96 | echo " displace_link $(call displace_files_replace_name,$(file), )";) \ | |
97 | $(foreach file,$(displace_hide_files), \ | |
98 | mkdir -p debian/$(cdbs_curpkg)/usr/share/$(cdbs_curpkg); \ | |
99 | echo " displace_hide $(file) $(call hide_files_name,$(file))";) \ | |
100 | echo 'fi'; \ | |
101 | ) \ | |
102 | } >> $(CURDIR)/debian/$(cdbs_curpkg).postinst.debhelper | |
103 | # Add code to prerm script to undo diversions and symlinks when package is removed. | |
104 | set -e; \ | |
105 | { \ | |
106 | $(if $(dh_compat_6),, \ | |
107 | if [ -e $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper ]; then \ | |
108 | cat $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper; \ | |
109 | fi;) \ | |
110 | sed 's/#PACKAGE#/$(cdbs_curpkg)/g; s/#DEB_DISPLACE_EXTENSION#/$(DEB_DISPLACE_EXTENSION)/g' $(DEB_DISPLACE_SCRIPT); \ | |
111 | $(if $(displace_files_thispkg), \ | |
112 | echo 'if [ "$$1" = "remove" ] || [ "$$1" = "deconfigure" ]; then'; \ | |
113 | $(foreach file,$(call reverse_dh_compat_6,$(displace_files)), \ | |
114 | echo " undisplace_unlink $(call displace_files_replace_name,$(file), )";) \ | |
115 | $(foreach file,$(call reverse_dh_compat_6,$(displace_hide_files)), \ | |
116 | echo " undisplace_unhide $(file) $(cdbs_curpkg)";) \ | |
117 | echo 'fi'; \ | |
118 | ) \ | |
119 | $(if $(dh_compat_6), \ | |
120 | if [ -e $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper ]; then \ | |
121 | cat $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper; \ | |
122 | fi;) \ | |
123 | } >> $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper.new | |
124 | mv $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper.new \ | |
125 | $(CURDIR)/debian/$(cdbs_curpkg).prerm.debhelper | |
126 | # Add an encoding of the names of the diverted files to the Provides: | |
127 | # and Conflicts: lists. This prevents two packages diverting the same | |
128 | # file from being installed simultaneously (it cannot work, and this | |
129 | # produces a much less ugly error). Requires in debian/control: | |
130 | # Provides: ${diverted-files} | |
131 | # Conflicts: ${diverted-files} | |
132 | set -e; \ | |
133 | { \ | |
134 | echo -n "diverted-files="; \ | |
135 | $(foreach file,$(displace_files_thispkg),\ | |
136 | echo -n "diverts-"; \ | |
137 | ${DEB_DISPLACE_ENCODER} "$(call displace_files_replace_name,$(file))"; \ | |
138 | echo -n ", ";) \ | |
139 | echo; \ | |
140 | } >> $(CURDIR)/debian/$(cdbs_curpkg).substvars | |
141 | ||
142 | $(patsubst %,binary-post-install/%,$(DEB_DISPLACE_PACKAGES)) :: binary-post-install/%: debian-displace/% | |
143 | ||
144 | endif |