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1 | #!/usr/bin/perl |
2 | # | |
3 | # dpkg-buildflags | |
4 | # | |
5 | # Copyright © 2010-2011 Raphaël Hertzog <hertzog@debian.org> | |
6 | # Copyright © 2012-2013 Guillem Jover <guillem@debian.org> | |
7 | # | |
8 | # This program is free software; you can redistribute it and/or modify | |
9 | # it under the terms of the GNU General Public License as published by | |
10 | # the Free Software Foundation; either version 2 of the License, or | |
11 | # (at your option) any later version. | |
12 | # | |
13 | # This program is distributed in the hope that it will be useful, | |
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | # GNU General Public License for more details. | |
17 | # | |
18 | # You should have received a copy of the GNU General Public License | |
19 | # along with this program. If not, see <https://www.gnu.org/licenses/>. | |
20 | ||
21 | use strict; | |
22 | use warnings; | |
23 | ||
24 | use Dpkg (); | |
25 | use Dpkg::Gettext; | |
26 | use Dpkg::ErrorHandling qw(:DEFAULT report REPORT_STATUS); | |
27 | use Dpkg::Build::Env; | |
28 | use Dpkg::BuildFlags; | |
29 | use Dpkg::Vendor qw(get_current_vendor); | |
30 | ||
31 | textdomain('dpkg-dev'); | |
32 | ||
33 | sub version { | |
34 | printf g_("Debian %s version %s.\n"), $Dpkg::PROGNAME, $Dpkg::PROGVERSION; | |
35 | ||
36 | printf g_(' | |
37 | This is free software; see the GNU General Public License version 2 or | |
38 | later for copying conditions. There is NO warranty. | |
39 | '); | |
40 | } | |
41 | ||
42 | sub usage { | |
43 | printf g_( | |
44 | 'Usage: %s [<command>]') | |
45 | . "\n\n" . g_( | |
46 | 'Commands: | |
47 | --get <flag> output the requested flag to stdout. | |
48 | --origin <flag> output the origin of the flag to stdout: | |
49 | value is one of vendor, system, user, env. | |
50 | --query-features <area> | |
51 | output the status of features for the given area. | |
52 | --list output a list of the flags supported by the current vendor. | |
53 | --export=(sh|make|cmdline|configure) | |
54 | output something convenient to import the compilation | |
55 | flags in a shell script, in make, or in a command line. | |
56 | --dump output all compilation flags with their values | |
57 | --status print a synopsis with all parameters affecting the | |
58 | behaviour of dpkg-buildflags and the resulting flags | |
59 | and their origin. | |
60 | --help show this help message. | |
61 | --version show the version. | |
62 | '), $Dpkg::PROGNAME; | |
63 | } | |
64 | ||
65 | my ($param, $action); | |
66 | my $load_config = 1; | |
67 | ||
68 | while (@ARGV) { | |
69 | $_ = shift(@ARGV); | |
70 | if (m/^--(get|origin|query-features)$/) { | |
71 | usageerr(g_('two commands specified: --%s and --%s'), $1, $action) | |
72 | if defined($action); | |
73 | $action = $1; | |
74 | $param = shift(@ARGV); | |
75 | usageerr(g_('%s needs a parameter'), $_) unless defined $param; | |
76 | } elsif (m/^--export(?:=(sh|make|cmdline|configure))?$/) { | |
77 | usageerr(g_('two commands specified: --%s and --%s'), 'export', $action) | |
78 | if defined($action); | |
79 | my $type = $1 || 'sh'; | |
80 | # Map legacy aliases. | |
81 | $type = 'cmdline' if $type eq 'configure'; | |
82 | $action = "export-$type"; | |
83 | } elsif (m/^--(list|status|dump)$/) { | |
84 | usageerr(g_('two commands specified: --%s and --%s'), $1, $action) | |
85 | if defined($action); | |
86 | $action = $1; | |
87 | $load_config = 0 if $action eq 'list'; | |
88 | } elsif (m/^-(?:\?|-help)$/) { | |
89 | usage(); | |
90 | exit 0; | |
91 | } elsif (m/^--version$/) { | |
92 | version(); | |
93 | exit 0; | |
94 | } else { | |
95 | usageerr(g_("unknown option '%s'"), $_); | |
96 | } | |
97 | } | |
98 | ||
99 | $action //= 'dump'; | |
100 | ||
101 | my $build_flags = Dpkg::BuildFlags->new(); | |
102 | ||
103 | $build_flags->load_config() if $load_config; | |
104 | ||
105 | if ($action eq 'list') { | |
106 | foreach my $flag ($build_flags->list()) { | |
107 | print "$flag\n"; | |
108 | } | |
109 | } elsif ($action eq 'get') { | |
110 | exit 1 unless $build_flags->has($param); | |
111 | ||
112 | print $build_flags->get($param) . "\n"; | |
113 | } elsif ($action eq 'origin') { | |
114 | exit 1 unless $build_flags->has($param); | |
115 | ||
116 | print $build_flags->get_origin($param) . "\n"; | |
117 | } elsif ($action eq 'query-features') { | |
118 | exit 1 unless $build_flags->has_features($param); | |
119 | ||
120 | my %features = $build_flags->get_features($param); | |
121 | my $para_shown = 0; | |
122 | foreach my $feature (sort keys %features) { | |
123 | print $para_shown++ ? "\n" : ''; | |
124 | printf "Feature: %s\n", $feature; | |
125 | printf "Enabled: %s\n", $features{$feature} ? 'yes' : 'no'; | |
126 | } | |
127 | } elsif ($action =~ m/^export-(.*)$/) { | |
128 | my $export_type = $1; | |
129 | foreach my $flag ($build_flags->list()) { | |
130 | next unless $flag =~ /^[A-Z]/; # Skip flags starting with lowercase | |
131 | my $value = $build_flags->get($flag); | |
132 | if ($export_type eq 'sh') { | |
133 | $value =~ s/"/\"/g; | |
134 | print "export $flag=\"$value\"\n"; | |
135 | } elsif ($export_type eq 'make') { | |
136 | $value =~ s/\$/\$\$/g; | |
137 | print "export $flag := $value\n"; | |
138 | } elsif ($export_type eq 'cmdline') { | |
139 | print "$flag=\"$value\" "; | |
140 | } | |
141 | } | |
142 | } elsif ($action eq 'dump') { | |
143 | foreach my $flag ($build_flags->list()) { | |
144 | my $value = $build_flags->get($flag); | |
145 | print "$flag=$value\n"; | |
146 | } | |
147 | } elsif ($action eq 'status') { | |
148 | # Prefix everything with "dpkg-buildflags: status: " to allow easy | |
149 | # extraction from a build log. Thus we use report with a non-translated | |
150 | # type string. | |
151 | ||
152 | # First print all environment variables that might have changed the | |
153 | # results (only existing ones, might make sense to add an option to | |
154 | # also show which ones could have set to modify it). | |
155 | my @envvars = Dpkg::Build::Env::list_accessed(); | |
156 | for my $envvar (@envvars) { | |
157 | if (exists $ENV{$envvar}) { | |
158 | printf report(REPORT_STATUS, 'environment variable %s=%s', | |
159 | $envvar, $ENV{$envvar}); | |
160 | } | |
161 | } | |
162 | my $vendor = Dpkg::Vendor::get_current_vendor() || 'undefined'; | |
163 | print report(REPORT_STATUS, "vendor is $vendor"); | |
164 | # Then the resulting features: | |
165 | foreach my $area (sort $build_flags->get_feature_areas()) { | |
166 | my $fs; | |
167 | my %features = $build_flags->get_features($area); | |
168 | foreach my $feature (sort keys %features) { | |
169 | $fs .= sprintf(' %s=%s', $feature, $features{$feature} ? 'yes' : 'no'); | |
170 | } | |
171 | print report(REPORT_STATUS, "$area features:$fs"); | |
172 | } | |
173 | # Then the resulting values (with their origin): | |
174 | foreach my $flag ($build_flags->list()) { | |
175 | my $value = $build_flags->get($flag); | |
176 | my $origin = $build_flags->get_origin($flag); | |
177 | my $maintainer = $build_flags->is_maintainer_modified($flag) ? '+maintainer' : ''; | |
178 | print report(REPORT_STATUS, "$flag [$origin$maintainer]: $value"); | |
179 | } | |
180 | } |