| 1 | #!/usr/bin/perl -w
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| 2 | #
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| 3 | # Creates common environment for distributions
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| 4 | #
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| 5 | # $Id$
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| 6 | #
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| 7 |
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| 8 | package ProjectBuilder::Distribution;
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| 9 |
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| 10 | use strict;
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| 11 |
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| 12 | # Inherit from the "Exporter" module which handles exporting functions.
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| 13 |
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| 14 | use Exporter;
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| 15 |
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| 16 | # Export, by default, all the functions into the namespace of
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| 17 | # any code which uses this module.
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| 18 |
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| 19 | our @ISA = qw(Exporter);
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| 20 | our @EXPORT = qw(pb_distro_init pb_get_distro);
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| 21 |
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| 22 | =pod
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| 23 |
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| 24 | =head1 NAME
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| 25 |
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| 26 | ProjectBuilder::Distribution, part of the project-builder.org - module dealing with distribution detection
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| 27 |
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| 28 | =head1 DESCRIPTION
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| 29 |
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| 30 | This modules provides functions to allow detection of Linux distributions, and giving back some attributes concerning them.
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| 31 |
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| 32 | =head1 SYNOPSIS
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| 33 |
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| 34 | use ProjectBuilder::Distribution;
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| 35 |
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| 36 | #
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| 37 | # Return information on the running distro
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| 38 | #
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| 39 | my ($ddir, $dver, $dfam, $dtype, $pbsuf) = pb_distro_init();
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| 40 | print "distro tuple: ".Dumper($ddir, $dver, $dfam, $dtype, $pbsuf)."\n";
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| 41 | #
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| 42 | # Return information on the requested distro
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| 43 | #
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| 44 | my ($ddir, $dver, $dfam, $dtype, $pbsuf) = pb_distro_init("ubuntu","7.10");
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| 45 | print "distro tuple: ".Dumper($ddir, $dver, $dfam, $dtype, $pbsuf)."\n";
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| 46 | #
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| 47 | # Return information on the running distro
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| 48 | #
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| 49 | my ($ddir,$dver) = pb_get_distro();
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| 50 | my ($ddir, $dver, $dfam, $dtype, $pbsuf) = pb_distro_init($ddir,$dver);
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| 51 | print "distro tuple: ".Dumper($ddir, $dver, $dfam, $dtype, $pbsuf)."\n";
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| 52 |
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| 53 | =head1 USAGE
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| 54 |
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| 55 | =over 4
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| 56 |
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| 57 | =item B<pb_get_distro>
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| 58 |
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| 59 | This function returns a list of 2 parameters indicating the distribution name and version of the underlying Linux distribution. The value of those 2 fields may be "unknown" in case the function was unable to recognize on which distribution it is running.
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| 60 |
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| 61 | On my home machine it would currently report ("mandriva","2008.0").
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| 62 |
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| 63 | =item B<pb_distro_init>
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| 64 |
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| 65 | This function returns a list of 5 parameters indicating the distribution name, version, family, type of build system and suffix of packages of the underlying Linux distribution. The value of the 5 fields may be "unknown" in case the function was unable to recognize on which distribution it is running.
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| 66 |
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| 67 | As an example, Ubuntu and Debian are in the same "du" family. As well as RedHat, RHEL, CentOS, fedora are on the same "rh" family.
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| 68 | Mandriva, Open SuSE and Fedora have all the same "rpm" type of build system. Ubuntu ad Debian have the same "deb" type of build system.
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| 69 | And "fc" is the extension generated for all Fedora packages (Version will be added by pb).
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| 70 |
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| 71 | When passing the distribution name and version as parameters, the B<pb_distro_init> function returns the parameter of that distribution instead of the underlying one.
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| 72 |
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| 73 | =back
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| 74 |
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| 75 | =head1 WEB SITES
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| 76 |
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| 77 | The main Web site of the project is available at L<http://www.project-builder.org/>. Bug reports should be filled using the trac instance of the project at L<http://trac.project-builder.org/>.
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| 78 |
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| 79 | =head1 USER MAILING LIST
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| 80 |
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| 81 | None exists for the moment.
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| 82 |
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| 83 | =head1 AUTHORS
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| 84 |
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| 85 | The Project-Builder.org team L<http://trac.project-builder.org/> lead by Bruno Cornec L<mailto:bruno@project-builder.org>.
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| 86 |
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| 87 | =head1 COPYRIGHT
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| 88 |
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| 89 | Project-Builder.org is distributed under the GPL v2.0 license
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| 90 | described in the file C<COPYING> included with the distribution.
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| 91 |
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| 92 | =cut
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| 93 |
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| 94 |
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| 95 | sub pb_distro_init {
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| 96 |
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| 97 | my $ddir = shift || undef;
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| 98 | my $dver = shift || undef;
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| 99 | my $dfam = "unknown";
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| 100 | my $dtype = "unknown";
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| 101 | my $dsuf = "unknown";
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| 102 |
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| 103 | # If we don't know which distribution we're on, then guess it
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| 104 | ($ddir,$dver) = pb_get_distro() if ((not defined $ddir) || (not defined $dver));
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| 105 |
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| 106 | # There should be unicity of names between ddir dfam and dtype
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| 107 | # In case of duplicate, bad things can happen
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| 108 | if (($ddir =~ /debian/) ||
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| 109 | ($ddir =~ /ubuntu/)) {
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| 110 | $dfam="du";
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| 111 | $dtype="deb";
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| 112 | $dsuf=".$ddir$dver";
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| 113 | } elsif ($ddir =~ /gentoo/) {
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| 114 | $dfam="gen";
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| 115 | $dtype="ebuild";
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| 116 | $dver="nover";
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| 117 | $dsuf=".$ddir";
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| 118 | } elsif ($ddir =~ /slackware/) {
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| 119 | $dfam="slack";
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| 120 | $dtype="tgz";
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| 121 | $dsuf=".$dfam$dver";
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| 122 | } elsif (($ddir =~ /suse/) ||
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| 123 | ($ddir =~ /sles/)) {
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| 124 | if ($ddir =~ /opensuse/) {
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| 125 | $ddir = "suse";
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| 126 | }
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| 127 | $dfam="novell";
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| 128 | $dtype="rpm";
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| 129 | $dsuf=".$ddir$dver";
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| 130 | } elsif (($ddir =~ /redhat/) ||
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| 131 | ($ddir =~ /rhel/) ||
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| 132 | ($ddir =~ /fedora/) ||
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| 133 | ($ddir =~ /vmware/) ||
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| 134 | ($ddir =~ /centos/)) {
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| 135 | $dfam="rh";
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| 136 | $dtype="rpm";
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| 137 | my $dver1 = $dver;
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| 138 | $dver1 =~ s/\.//;
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| 139 | if ($ddir =~ /fedora/) {
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| 140 | $dsuf=".fc$dver1";
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| 141 | } elsif ($ddir =~ /redhat/) {
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| 142 | $dsuf=".rh$dver1";
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| 143 | } elsif ($ddir =~ /vmware/) {
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| 144 | $dsuf=".vwm$dver1";
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| 145 | } else {
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| 146 | $dsuf=".$ddir$dver1";
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| 147 | }
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| 148 | } elsif (($ddir =~ /mandrake/) ||
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| 149 | ($ddir =~ /mandrakelinux/) ||
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| 150 | ($ddir =~ /mandriva/)) {
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| 151 | $dfam="md";
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| 152 | $dtype="rpm";
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| 153 | if ($ddir =~ /mandrakelinux/) {
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| 154 | $ddir = "mandrake";
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| 155 | }
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| 156 | if ($ddir =~ /mandrake/) {
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| 157 | my $dver1 = $dver;
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| 158 | $dver1 =~ s/\.//;
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| 159 | $dsuf=".mdk$dver1";
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| 160 | } else {
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| 161 | $dsuf=".mdv$dver";
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| 162 | }
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| 163 | } elsif ($ddir =~ /freebsd/) {
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| 164 | $dfam="bsd";
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| 165 | $dtype="port";
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| 166 | my $dver1 = $dver;
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| 167 | $dver1 =~ s/\.//;
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| 168 | $dsuf=".$dfam$dver1";
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| 169 | } else {
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| 170 | $dfam="unknown";
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| 171 | $dtype="unknown";
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| 172 | $dsuf="unknown";
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| 173 | }
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| 174 |
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| 175 | return($ddir, $dver, $dfam, $dtype, $dsuf);
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| 176 | }
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| 177 |
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| 178 | sub pb_get_distro {
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| 179 |
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| 180 | # Cf: http://linuxmafia.com/faq/Admin/release-files.html
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| 181 | # Ideas taken from
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| 182 | # http://search.cpan.org/~kerberus/Linux-Distribution-0.14/lib/Linux/Distribution.pm
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| 183 |
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| 184 | my $base="/etc";
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| 185 |
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| 186 | # List of files that unambiguously indicates what distro we have
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| 187 | my %single_rel_files = (
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| 188 | # Tested
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| 189 | 'gentoo' => 'gentoo-release', # >= 1.6
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| 190 | 'slackware' => 'slackware-version', # >= 10.2
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| 191 | 'mandriva' => 'mandriva-release', # >=2006.0
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| 192 | 'mandrakelinux' => 'mandrakelinux-release',# = 10.2
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| 193 | 'fedora' => 'fedora-release', # >= 4
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| 194 | 'vmware' => 'vmware-release', # >= 3
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| 195 | 'sles' => 'sles-release', # Doesn't exist as of 10
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| 196 | # Untested
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| 197 | 'knoppix' => 'knoppix_version', #
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| 198 | 'yellowdog' => 'yellowdog-release', #
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| 199 | 'esmith' => 'e-smith-release', #
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| 200 | 'turbolinux' => 'turbolinux-release', #
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| 201 | 'blackcat' => 'blackcat-release', #
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| 202 | 'aurox' => 'aurox-release', #
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| 203 | 'annvix' => 'annvix-release', #
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| 204 | 'cobalt' => 'cobalt-release', #
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| 205 | 'redflag' => 'redflag-release', #
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| 206 | 'ark' => 'ark-release', #
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| 207 | 'pld' => 'pld-release', #
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| 208 | 'nld' => 'nld-release', #
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| 209 | 'lfs' => 'lfs-release', #
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| 210 | 'mk' => 'mk-release', #
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| 211 | 'conectiva' => 'conectiva-release', #
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| 212 | 'immunix' => 'immunix-release', #
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| 213 | 'tinysofa' => 'tinysofa-release', #
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| 214 | 'trustix' => 'trustix-release', #
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| 215 | 'adamantix' => 'adamantix_version', #
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| 216 | 'yoper' => 'yoper-release', #
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| 217 | 'arch' => 'arch-release', #
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| 218 | 'libranet' => 'libranet_version', #
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| 219 | 'valinux' => 'va-release', #
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| 220 | 'yellowdog' => 'yellowdog-release', #
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| 221 | 'ultrapenguin' => 'ultrapenguin-release', #
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| 222 | );
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| 223 |
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| 224 | # List of files that ambiguously indicates what distro we have
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| 225 | my %ambiguous_rel_files = (
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| 226 | 'mandrake' => 'mandrake-release', # <= 10.1
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| 227 | 'debian' => 'debian_version', # >= 3.1
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| 228 | 'suse' => 'SuSE-release', # >= 10.0
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| 229 | 'redhat' => 'redhat-release', # >= 7.3
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| 230 | 'lsb' => 'lsb-release', # ???
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| 231 | );
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| 232 |
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| 233 | # Should have the same keys as the previous one.
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| 234 | # If ambiguity, which other distributions should be checked
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| 235 | my %distro_similar = (
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| 236 | 'mandrake' => ['mandrake', 'mandrakelinux'],
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| 237 | 'debian' => ['debian', 'ubuntu'],
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| 238 | 'suse' => ['suse', 'sles', 'opensuse'],
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| 239 | 'redhat' => ['redhat', 'rhel', 'centos', 'mandrake', 'vmware'],
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| 240 | 'lsb' => ['ubuntu', 'debian', 'lsb'],
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| 241 | );
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| 242 |
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| 243 | my %distro_match = (
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| 244 | # Tested
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| 245 | 'gentoo' => '.* version (.+)',
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| 246 | 'slackware' => 'S[^ ]* (.+)$',
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| 247 | # There should be no ambiguity between potential ambiguous distro
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| 248 | 'mandrakelinux' => 'Mandrakelinux release (.+) \(',
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| 249 | 'mandrake' => 'Mandr[^ ]* release (.+) \(',
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| 250 | 'mandriva' => 'Mandr[^ ]* [^ ]* release (.+) \(',
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| 251 | 'fedora' => 'Fedora .*release (\d+) \(',
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| 252 | 'vmware' => 'VMware ESX Server (\d+) \(',
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| 253 | 'rhel' => 'Red Hat Enterprise Linux .*release (.+) \(',
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| 254 | 'centos' => '.*CentOS .*release (.+) ',
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| 255 | 'redhat' => 'Red Hat Linux release (.+) \(',
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| 256 | 'sles' => 'SUSE .* Enterprise Server (\d+) \(',
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| 257 | 'suse' => 'SUSE LINUX (\d.+) \(',
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| 258 | 'opensuse' => 'openSUSE (\d.+) \(',
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| 259 | 'lsb' => '.*[^Ubunt].*\nDISTRIB_RELEASE=(.+)',
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| 260 | # Ubuntu 6.06 includes a /etc/debian_version file that needs to be
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| 261 | # renamed to /etc/debian_version.sav as there is no way to distinguish
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| 262 | # Ubuntu 6.06 from debian testing otherwise
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| 263 | # Same is true for Ubuntu 7.10 :-(
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| 264 | 'ubuntu' => '.*Ubuntu.*\nDISTRIB_RELEASE=(.+)',
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| 265 | 'debian' => '(.+)',
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| 266 | # Not tested
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| 267 | 'arch' => '.* ([0-9.]+) .*',
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| 268 | 'redflag' => 'Red Flag (?:Desktop|Linux) (?:release |\()(.*?)(?: \(.+)?\)',
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| 269 | );
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| 270 |
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| 271 | my $release;
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| 272 | my $distro;
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| 273 |
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| 274 | # Begin to test presence of non-ambiguous files
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| 275 | # that way we reduce the choice
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| 276 | my ($d,$r);
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| 277 | while (($d,$r) = each %single_rel_files) {
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| 278 | if (-f "$base/$r" && ! -l "$base/$r") {
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| 279 | my $tmp=pb_get_content("$base/$r");
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| 280 | # Found the only possibility.
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| 281 | # Try to get version and return
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| 282 | if (defined ($distro_match{$d})) {
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| 283 | ($release) = $tmp =~ m/$distro_match{$d}/m;
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| 284 | } else {
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| 285 | print STDERR "Unable to find $d version in $r\n";
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| 286 | print STDERR "Please report to the maintainer bruno_at_project-builder.org\n";
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| 287 | $release = "unknown";
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| 288 | }
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| 289 | return($d,$release);
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| 290 | }
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| 291 | }
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| 292 |
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| 293 | while (($d,$r) = each %ambiguous_rel_files) {
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| 294 | if (-f "$base/$r" && !-l "$base/$r"){
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| 295 | # Found one possibility.
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| 296 | # Get all distros concerned by that file
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| 297 | my $tmp=pb_get_content("$base/$r");
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| 298 | my $found = 0;
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| 299 | my $ptr = $distro_similar{$d};
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| 300 | #pb_log(2,$LOG "amb: ".Dumper($ptr)."\n" if ($debug >= 1);
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| 301 | $release = "unknown";
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| 302 | foreach my $dd (@$ptr) {
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| 303 | #pb_log(2,$LOG "check $dd\n" if ($debug >= 1);
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| 304 | # Try to check pattern
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| 305 | if (defined $distro_match{$dd}) {
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| 306 | #pb_log(2,$LOG "cmp: $distro_match{$dd} - vs - $tmp\n" if ($debug >= 1);
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| 307 | ($release) = $tmp =~ m/$distro_match{$dd}/m;
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| 308 | if ((defined $release) && ($release ne "unknown")) {
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| 309 | $distro = $dd;
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| 310 | $found = 1;
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| 311 | last;
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| 312 | }
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| 313 | }
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| 314 | }
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| 315 | if ($found == 0) {
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| 316 | print STDERR "Unable to find $d version in $r\n";
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| 317 | print STDERR "Please report to the maintainer bruno_at_project-builder.org\n";
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| 318 | $release = "unknown";
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| 319 | } else {
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| 320 | return($distro,$release);
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| 321 | }
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| 322 | }
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| 323 | }
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| 324 | return("unknown","unknown");
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| 325 | }
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| 326 |
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| 327 | # get content of a file in a variable
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| 328 | sub pb_get_content {
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| 329 |
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| 330 | my $file=shift;
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| 331 |
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| 332 | my $bkp = $/;
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| 333 | undef $/;
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| 334 | open(R,$file) || die "Unable to open $file: $!";
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| 335 | my $content=<R>;
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| 336 | close(R);
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| 337 | chomp($content);
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| 338 | $/ = $bkp;
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| 339 | return($content);
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| 340 | }
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| 341 | 1;
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