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#!/usr/bin/perl
#
# dpkg-buildflags
#
# Copyright © 2010-2011 Raphaël Hertzog <hertzog@debian.org>
# Copyright © 2012-2013 Guillem Jover <guillem@debian.org>
#
# 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 of the License, 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, see <https://www.gnu.org/licenses/>.
use strict;
use warnings;
use Dpkg ();
use Dpkg::Gettext;
use Dpkg::ErrorHandling qw(:DEFAULT report REPORT_STATUS);
use Dpkg::BuildEnv;
use Dpkg::BuildFlags;
use Dpkg::Vendor qw(get_current_vendor);
textdomain('dpkg-dev');
sub version {
printf g_("Debian %s version %s.\n"), $Dpkg::PROGNAME, $Dpkg::PROGVERSION;
printf g_('
This is free software; see the GNU General Public License version 2 or
later for copying conditions. There is NO warranty.
');
}
sub usage {
printf g_(
'Usage: %s [<command>]')
. "\n\n" . g_(
'Commands:
--get <flag> output the requested flag to stdout.
--origin <flag> output the origin of the flag to stdout:
value is one of vendor, system, user, env.
--status output a synopsis with all parameters affecting the
program behavior, the resulting flags and their origin.
--query like --status, but in deb822 format.
--query-features <area>
output the status of features for the given area.
--list output a list of the flags supported by the current vendor.
--export=(sh|make|cmdline|configure)
output something convenient to import the compilation
flags in a shell script, in make, or in a command line.
--dump output all compilation flags with their values.
--help show this help message.
--version show the version.
'), $Dpkg::PROGNAME;
}
my ($param, $action);
my $load_config = 1;
while (@ARGV) {
$_ = shift(@ARGV);
if (m/^--(get|origin|query-features)$/) {
usageerr(g_('two commands specified: --%s and --%s'), $1, $action)
if defined($action);
$action = $1;
$param = shift(@ARGV);
usageerr(g_('%s needs a parameter'), $_) unless defined $param;
} elsif (m/^--export(?:=(sh|make|cmdline|configure))?$/) {
usageerr(g_('two commands specified: --%s and --%s'), 'export', $action)
if defined($action);
my $type = $1 || 'sh';
# Map legacy aliases.
$type = 'cmdline' if $type eq 'configure';
$action = "export-$type";
} elsif (m/^--(list|status|dump|query)$/) {
usageerr(g_('two commands specified: --%s and --%s'), $1, $action)
if defined($action);
$action = $1;
$load_config = 0 if $action eq 'list';
} elsif (m/^-(?:\?|-help)$/) {
usage();
exit 0;
} elsif (m/^--version$/) {
version();
exit 0;
} else {
usageerr(g_("unknown option '%s'"), $_);
}
}
$action //= 'dump';
my $build_flags = Dpkg::BuildFlags->new();
$build_flags->load_config() if $load_config;
if ($action eq 'list') {
foreach my $flag ($build_flags->list()) {
print "$flag\n";
}
} elsif ($action eq 'get') {
exit 1 unless $build_flags->has($param);
print $build_flags->get($param) . "\n";
} elsif ($action eq 'origin') {
exit 1 unless $build_flags->has($param);
print $build_flags->get_origin($param) . "\n";
} elsif ($action eq 'query-features') {
exit 1 unless $build_flags->has_features($param);
my %features = $build_flags->get_features($param);
my %builtins = $build_flags->get_builtins($param);
my $para_shown = 0;
foreach my $feature (sort keys %features) {
print $para_shown++ ? "\n" : '';
printf "Feature: %s\n", $feature;
printf "Enabled: %s\n", $features{$feature} // $builtins{$feature} ? 'yes' : 'no';
printf "Builtin: %s\n", $builtins{$feature} ? 'yes' : 'no' if exists $builtins{$feature};
}
} elsif ($action =~ m/^export-(.*)$/) {
my $export_type = $1;
foreach my $flag ($build_flags->list()) {
next unless $flag =~ /^[A-Z]/; # Skip flags starting with lowercase
my $value = $build_flags->get($flag);
if ($export_type eq 'sh') {
$value =~ s/"/\"/g;
print "export $flag=\"$value\"\n";
} elsif ($export_type eq 'make') {
$value =~ s/\$/\$\$/g;
print "export $flag := $value\n";
} elsif ($export_type eq 'cmdline') {
print "$flag=\"$value\" ";
}
}
} elsif ($action eq 'dump') {
foreach my $flag ($build_flags->list()) {
my $value = $build_flags->get($flag);
print "$flag=$value\n";
}
} elsif ($action eq 'query') {
# First print all environment variables that might have changed the
# results (only existing ones, might make sense to add an option to
# also show which ones could have set to modify it).
printf "Vendor: %s\n", Dpkg::Vendor::get_current_vendor() || 'undefined';
print "Environment:\n";
for my $envvar (Dpkg::BuildEnv::list_accessed()) {
print " $envvar=$ENV{$envvar}\n" if exists $ENV{$envvar};
}
# Then the resulting features:
foreach my $area (sort $build_flags->get_feature_areas()) {
print "\n";
print "Area: $area\n";
print "Features:\n";
my %features = $build_flags->get_features($area);
my %builtins = $build_flags->get_builtins($area);
foreach my $feature (sort keys %features) {
printf " %s=%s\n", $feature, $features{$feature} // $builtins{$feature} ? 'yes' : 'no';
}
print "Builtins:\n";
foreach my $feature (sort keys %builtins) {
printf " %s=%s\n", $feature, $builtins{$feature} ? 'yes' : 'no';
}
}
# Then the resulting values (with their origin):
foreach my $flag ($build_flags->list()) {
print "\n";
print "Flag: $flag\n";
printf "Value: %s\n", $build_flags->get($flag);
my $origin = $build_flags->get_origin($flag);
if ($build_flags->is_maintainer_modified($flag)) {
$origin .= '+maintainer';
}
print "Origin: $origin\n";
}
} elsif ($action eq 'status') {
# Prefix everything with "dpkg-buildflags: status: " to allow easy
# extraction from a build log. Thus we use report with a non-translated
# type string.
# First print all environment variables that might have changed the
# results (only existing ones, might make sense to add an option to
# also show which ones could have set to modify it).
my @envvars = Dpkg::BuildEnv::list_accessed();
for my $envvar (@envvars) {
if (exists $ENV{$envvar}) {
printf report(REPORT_STATUS, 'environment variable %s=%s',
$envvar, $ENV{$envvar});
}
}
my $vendor = Dpkg::Vendor::get_current_vendor() || 'undefined';
print report(REPORT_STATUS, "vendor is $vendor");
# Then the resulting features:
foreach my $area (sort $build_flags->get_feature_areas()) {
my $fs;
my %features = $build_flags->get_features($area);
my %builtins = $build_flags->get_builtins($area);
foreach my $feature (sort keys %features) {
$fs .= sprintf(' %s=%s', $feature, $features{$feature} // $builtins{$feature} ? 'yes' : 'no');
}
print report(REPORT_STATUS, "$area features:$fs");
my $bs = q{};
foreach my $feature (sort keys %builtins) {
next if ! exists $builtins{$feature};
$bs .= sprintf(' %s=%s', $feature, $builtins{$feature} ? 'yes' : 'no');
}
print report(REPORT_STATUS, "$area builtins:$bs");
}
# Then the resulting values (with their origin):
foreach my $flag ($build_flags->list()) {
my $value = $build_flags->get($flag);
my $origin = $build_flags->get_origin($flag);
my $maintainer = $build_flags->is_maintainer_modified($flag) ? '+maintainer' : '';
print report(REPORT_STATUS, "$flag [$origin$maintainer]: $value");
}
}