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Diffstat (limited to 'scripts/dpkg-buildflags.pl')
| -rwxr-xr-x | scripts/dpkg-buildflags.pl | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/scripts/dpkg-buildflags.pl b/scripts/dpkg-buildflags.pl new file mode 100755 index 0000000..1489f32 --- /dev/null +++ b/scripts/dpkg-buildflags.pl @@ -0,0 +1,226 @@ +#!/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 behaviour, 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"); + } +} |