diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 00:39:23 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 00:39:23 +0000 |
commit | e3b16b3856bdd5c1645f4609d61bf5a16c026930 (patch) | |
tree | d9def3b6f6f46b166fc6f516775350fedeefbef6 /scripts/dcontrol.pl | |
parent | Initial commit. (diff) | |
download | devscripts-upstream.tar.xz devscripts-upstream.zip |
Adding upstream version 2.19.5+deb10u1.upstream/2.19.5+deb10u1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rwxr-xr-x | scripts/dcontrol.pl | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/scripts/dcontrol.pl b/scripts/dcontrol.pl new file mode 100755 index 0000000..77a1660 --- /dev/null +++ b/scripts/dcontrol.pl @@ -0,0 +1,303 @@ +#!/usr/bin/perl +# vim: set ai shiftwidth=4 tabstop=4 expandtab: + +# dcontrol - Query Debian control files across releases and architectures +# Copyright (C) 2009 Christoph Berg <myon@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, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +use strict; +use warnings; +use File::Basename; +use Getopt::Long qw(:config bundling permute no_getopt_compat); + +BEGIN { + pop @INC if $INC[-1] eq '.'; + # Load the URI::Escape and LWP::UserAgent modules safely + my $progname = basename($0, '.pl'); + eval { require URI::Escape; }; + if ($@) { + if ($@ =~ /^Can\'t locate URI\/Escape\.pm/) { + die +"$progname: you must have the liburi-perl package installed\nto use this script\n"; + } + die +"$progname: problem loading the URI::Escape module:\n $@\nHave you installed the liburi-perl package?\n"; + } + import URI::Escape; + + eval { require LWP::UserAgent; }; + if ($@) { + my $progname = basename $0; + if ($@ =~ /^Can\'t locate LWP/) { + die +"$progname: you must have the libwww-perl package installed\nto use this script\n"; + } + die +"$progname: problem loading the LWP::UserAgent module:\n $@\nHave you installed the libwww-perl package?\n"; + } + import LWP::UserAgent; +} + +# global variables + +my $progname = basename($0, '.pl'); # the '.pl' is for when we're debugging +my $modified_conf_msg; +my $dcontrol_url; +my $opt; + +my $ua = LWP::UserAgent->new(agent => "$progname ###VERSION###"); +$ua->env_proxy(); + +# functions + +sub usage { + print <<"EOT"; +Usage: $progname [-sd] package[modifiers] [...] + +Query package and source control files for all Debian distributions. + +Options: + -s --show-suite Add headers for distribution the control file is from + -d --debug Print URL queried + --noconf --no-conf Ignore configuration files (must be first option). + +Modifiers: + =version Exact version match + \@architecture Query this architecture + /[archive:][suite][/component] + Restrict to archive (debian, debian-backports, + debian-security, debian-volatile), suite (always + codenames, with the exception of experimental), and/or + component (main, updates/main, ...). Use // if the suite + name contains slashes. + +By default, all versions, suites, and architectures are queried. +Use \@source for source packages. \@binary returns no source packages. +Refer to $dcontrol_url for currently supported values. + +Default settings modified by devscripts configuration files: +$modified_conf_msg +EOT +} + +sub version { + print <<"EOF"; +This is $progname, from the Debian devscripts package, version ###VERSION### +This code is copyright 2009 by Christoph Berg <myon\@debian.org>. +All rights reserved. +This program comes with ABSOLUTELY NO WARRANTY. +You are free to redistribute this code under the terms of the +GNU General Public License, version 2 or later. +EOF +} + +sub apt_get { + my ($arg) = @_; + unless ($arg =~ /^([\w.+-]+)/) { + die "$arg does not start with a valid package name\n"; + } + my $url = "$dcontrol_url?package=" . uri_escape($1); + if ($arg =~ /=([\w~:.+-]+)/) { + $url .= "&version=" . uri_escape($1); + } + if ($arg =~ /@([\w.-]+)/) { + $url .= "&architecture=$1"; + } + if ($arg =~ m!/([\w-]*):([\w/-]*)//([\w/-]*)!) { + $url .= "&archive=$1&suite=$2&component=$3"; + } elsif ($arg =~ m!/([\w/-]*)//([\w/-]*)!) { + $url .= "&suite=$1&component=$2"; + } elsif ($arg =~ m!/([\w-]*):([\w-]*)/([\w/-]*)!) { + $url .= "&archive=$1&suite=$2&component=$3"; + } elsif ($arg =~ m!/([\w-]*):([\w-]*)!) { + $url .= "&archive=$1&suite=$2"; + } elsif ($arg =~ m!/([\w-]*)/([\w/-]*)!) { + $url .= "&suite=$1&component=$2"; + } elsif ($arg =~ m!/([\w\/-]+)!) { + $url .= "&suite=$1"; + } + if ($opt->{'show-suite'}) { + $url .= "&annotate=yes"; + } + print "$url\n" if $opt->{debug}; + my $response = $ua->get($url); + if ($response->is_success) { + print $response->content . "\n"; + } else { + die $response->status_line; + } +} + +# main program + +if (@ARGV and $ARGV[0] =~ /^--no-?conf$/) { + $modified_conf_msg = " (no configuration files read)"; + shift; +} else { + my @config_files = ('/etc/devscripts.conf', '~/.devscripts'); + my %config_vars + = ('DCONTROL_URL' => 'https://qa.debian.org/cgi-bin/dcontrol',); + my %config_default = %config_vars; + + my $shell_cmd; + # Set defaults + foreach my $var (keys %config_vars) { + $shell_cmd .= "$var='$config_vars{$var}';\n"; + } + $shell_cmd .= 'for file in ' . join(" ", @config_files) . "; do\n"; + $shell_cmd .= '[ -f $file ] && . $file; done;' . "\n"; + # Read back values + foreach my $var (keys %config_vars) { $shell_cmd .= "echo \$$var;\n" } + my $shell_out = `/bin/bash -c '$shell_cmd'`; + @config_vars{ keys %config_vars } = split /\n/, $shell_out, -1; + + foreach my $var (sort keys %config_vars) { + if ($config_vars{$var} ne $config_default{$var}) { + $modified_conf_msg .= " $var=$config_vars{$var}\n"; + } + } + $modified_conf_msg ||= " (none)\n"; + chomp $modified_conf_msg; + + $dcontrol_url = $config_vars{'DCONTROL_URL'}; +} + +# handle options +GetOptions( + "d|debug" => \$opt->{'debug'}, + "s|show-suite" => \$opt->{'show-suite'}, + "h|help" => \$opt->{'help'}, + "V|version" => \$opt->{'version'}, + 'noconf|no-conf' => \$opt->{'noconf'}, + ) + or die + "$progname: unrecognised option. Run $progname --help for more details.\n"; + +if ($opt->{'help'}) { usage(); exit 0; } +if ($opt->{'version'}) { version(); exit 0; } +if ($opt->{'no-conf'}) { + die +"$progname: --no-conf is only acceptable as the first command-line option!\n"; +} + +if (!@ARGV) { + usage(); + exit 1; +} + +# handle arguments +while (my $arg = shift @ARGV) { + apt_get($arg); +} + +=head1 NAME + +dcontrol -- Query package and source control files for all Debian distributions + +=head1 SYNOPSIS + +=over + +=item B<dcontrol> [I<options>] I<package>[I<modifiers>] ... + +=back + +=head1 DESCRIPTION + +B<dcontrol> queries a remote database of Debian binary and source package +control files. It can be thought of as an B<apt-cache> webservice that also +operates for distributions and architectures different from the local machine. + +=head1 MODIFIERS + +Like B<apt-cache>, packages can be suffixed by modifiers: + +=over 4 + +=item B<=>I<version> + +Exact version match + +=item B<@>I<architecture> + +Query this only architecture. Use B<@source> for source packages, +B<@binary> excludes source packages. + +=item B</>[I<archive>B<:>][I<suite>][B</>I<component>] + +Restrict to I<archive> (debian, debian-backports, debian-security, +debian-volatile), I<suite> (always codenames, with the exception of +experimental), and/or I<component> (main, updates/main, ...). Use two slashes +(B<//>) to separate suite and component if the suite name contains slashes. +(Component can be left empty.) + +=back + +By default, all versions, suites, and architectures are queried. Refer to +B<https://qa.debian.org/cgi-bin/dcontrol> for currently supported values. + +=head1 OPTIONS + +=over 4 + +=item B<-s>, B<--show-suites> + +Add headers showing which distribution the control file is from. + +=item B<-d>, B<--debug> + +Print URL queried. + +=item B<--noconf>, B<--no-conf> + +Ignore all configuration files (must be the first option). + +=item B<-h>, B<--help> + +Show a help message. + +=item B<-V>, B<--version> + +Show version information. + +=back + +=head1 CONFIGURATION VARIABLES + +The two configuration files F</etc/devscripts.conf> and +F<~/.devscripts> are sourced by a shell in that order to set +configuration variables. Command line options can be used to override +configuration file settings. Environment variable settings are +ignored for this purpose. The currently recognised variable is: + +=over 4 + +=item DCONTROL_URL + +URL to query. Default is B<https://qa.debian.org/cgi-bin/dcontrol>. + +=back + +=head1 AUTHOR + +This program is Copyright (C) 2009 by Christoph Berg <myon@debian.org>. + +This program is licensed under the terms of the GPL, either version 2 +of the License, or (at your option) any later version. + +=head1 SEE ALSO + +B<apt-cache>(1) |