| 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 | use Data::Dumper;
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| 12 | use ProjectBuilder::Base;
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| 13 | use ProjectBuilder::Conf;
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| 14 | use File::Basename;
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| 15 | use File::Copy;
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| 16 |
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| 17 | # Inherit from the "Exporter" module which handles exporting functions.
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| 18 |
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| 19 | use Exporter;
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| 20 |
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| 21 | # Export, by default, all the functions into the namespace of
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| 22 | # any code which uses this module.
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| 23 |
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| 24 | our @ISA = qw(Exporter);
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| 25 | our @EXPORT = qw(pb_distro_conffile pb_distro_init pb_distro_get pb_distro_installdeps pb_distro_getdeps pb_distro_only_deps_needed pb_distro_setuprepo pb_distro_get_param);
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| 26 |
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| 27 | =pod
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| 28 |
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| 29 | =head1 NAME
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| 30 |
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| 31 | ProjectBuilder::Distribution, part of the project-builder.org - module dealing with distribution detection
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| 32 |
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| 33 | =head1 DESCRIPTION
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| 34 |
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| 35 | This modules provides functions to allow detection of Linux distributions, and giving back some attributes concerning them.
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| 36 |
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| 37 | =head1 SYNOPSIS
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| 38 |
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| 39 | use ProjectBuilder::Distribution;
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| 40 |
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| 41 | #
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| 42 | # Return information on the running distro
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| 43 | #
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| 44 | my ($ddir, $dver, $dfam, $dtype, $pbsuf, $pbupd, $arch) = pb_distro_init();
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| 45 | print "distro tuple: ".Dumper($ddir, $dver, $dfam, $dtype, $pbsuf, $pbupd, $arch)."\n";
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| 46 | #
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| 47 | # Return information on the requested distro
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| 48 | #
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| 49 | my ($ddir, $dver, $dfam, $dtype, $pbsuf, $pbupd, $arch) = pb_distro_init("ubuntu","7.10","x86_64");
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| 50 | print "distro tuple: ".Dumper($ddir, $dver, $dfam, $dtype, $pbsuf, $pbupd, $arch)."\n";
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| 51 | #
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| 52 | # Return information on the running distro
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| 53 | #
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| 54 | my ($ddir,$dver) = pb_distro_get();
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| 55 | my ($ddir, $dver, $dfam, $dtype, $pbsuf, $pbupd, $arch) = pb_distro_init($ddir,$dver);
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| 56 | print "distro tuple: ".Dumper($ddir, $dver, $dfam, $dtype, $pbsuf, $pbupd, $arch)."\n";
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| 57 |
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| 58 | =head1 USAGE
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| 59 |
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| 60 | =over 4
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| 61 |
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| 62 | =item B<pb_distro_conffile>
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| 63 |
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| 64 | This function returns the mandatory configuration file used for distribution/OS detection
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| 65 |
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| 66 | =cut
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| 67 |
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| 68 | sub pb_distro_conffile {
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| 69 |
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| 70 | return("CCCC/pb.conf");
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| 71 | }
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| 72 |
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| 73 |
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| 74 | =item B<pb_distro_init>
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| 75 |
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| 76 | This function returns a list of 7 parameters indicating the distribution name, version, family, type of build system, suffix of packages, update command line and architecture of the underlying Linux distribution. The value of the 7 fields may be "unknown" in case the function was unable to recognize on which distribution it is running.
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| 77 |
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| 78 | 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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| 79 | 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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| 80 | And "fc" is the extension generated for all Fedora packages (Version will be added by pb).
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| 81 | All these information are stored in an external configuration file typically at /etc/pb/pb.conf
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| 82 |
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| 83 | 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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| 84 |
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| 85 | Cf: http://linuxmafia.com/faq/Admin/release-files.html
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| 86 | Ideas taken from http://search.cpan.org/~kerberus/Linux-Distribution-0.14/lib/Linux/Distribution.pm
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| 87 |
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| 88 | =cut
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| 89 |
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| 90 |
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| 91 | sub pb_distro_init {
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| 92 |
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| 93 | my $ddir = shift || undef;
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| 94 | my $dver = shift || undef;
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| 95 | my $dfam = "unknown";
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| 96 | my $dtype = "unknown";
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| 97 | my $dsuf = "unknown";
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| 98 | my $dupd = "unknown";
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| 99 | my $darch = shift || undef;
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| 100 | my $dnover = "false";
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| 101 | my $drmdot = "false";
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| 102 |
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| 103 | # Adds conf file for distribution description
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| 104 | # the location of the conf file is finalyzed at install time
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| 105 | # depending whether we deal with package install or tar file install
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| 106 | pb_conf_add(pb_distro_conffile());
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| 107 |
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| 108 | # If we don't know which distribution we're on, then guess it
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| 109 | ($ddir,$dver) = pb_distro_get() if ((not defined $ddir) || (not defined $dver));
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| 110 |
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| 111 | # Initialize arch
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| 112 | $darch=pb_get_arch() if (not defined $darch);
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| 113 |
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| 114 | my ($osfamily,$ostype,$osupd,$ossuffix,$osnover,$osremovedotinver) = pb_conf_get("osfamily","ostype","osupd","ossuffix","osnover","osremovedotinver");
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| 115 |
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| 116 | # Dig into the tuple to find the best answer
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| 117 | $dfam = pb_distro_get_param($ddir,$dver,$darch,$osfamily);
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| 118 | $dtype = $ostype->{$dfam} if (defined $ostype->{$dfam});
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| 119 | $dupd = pb_distro_get_param($ddir,$dver,$darch,$osupd,$dfam,$dtype);
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| 120 | $dsuf = pb_distro_get_param($ddir,$dver,$darch,$ossuffix,$dfam,$dtype);
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| 121 | $dnover = pb_distro_get_param($ddir,$dver,$darch,$osnover,$dfam,$dtype);
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| 122 | $drmdot = pb_distro_get_param($ddir,$dver,$darch,$osremovedotinver,$dfam,$dtype);
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| 123 |
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| 124 | # Some OS have no interesting version
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| 125 | $dver = "nover" if ($dnover eq "true");
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| 126 |
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| 127 | # For some OS remove the . in version name
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| 128 | $dver =~ s/\.// if ($drmdot eq "true");
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| 129 |
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| 130 | if ((not defined $dsuf) || ($dsuf eq "")) {
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| 131 | # By default suffix is a concatenation of .ddir and dver
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| 132 | $dsuf = ".$ddir$dver"
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| 133 | } else {
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| 134 | # concat just the version to what has been found
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| 135 | $dsuf = ".$dsuf$dver";
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| 136 | }
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| 137 |
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| 138 | # if ($arch eq "x86_64") {
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| 139 | # $opt="--exclude=*.i?86";
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| 140 | # }
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| 141 | pb_log(2,"DEBUG: pb_distro_init: $ddir, $dver, $dfam, $dtype, $dsuf, $dupd, $darch\n");
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| 142 |
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| 143 | return($ddir, $dver, $dfam, $dtype, $dsuf, $dupd, $darch);
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| 144 | }
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| 145 |
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| 146 | =item B<pb_distro_get>
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| 147 |
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| 148 | This function returns a list of 2 parameters indicating the distribution name and version of the underlying Linux distribution. The value of those 2 fields may be "unknown" in case the function was unable to recognize on which distribution it is running.
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| 149 |
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| 150 | On my home machine it would currently report ("mandriva","2009.0").
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| 151 |
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| 152 | =cut
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| 153 |
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| 154 | sub pb_distro_get {
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| 155 |
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| 156 | # 1: List of files that unambiguously indicates what distro we have
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| 157 | # 2: List of files that ambiguously indicates what distro we have
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| 158 | # 3: Should have the same keys as the previous one. If ambiguity, which other distributions should be checked
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| 159 | # 4: Matching Rg. Expr to detect distribution and version
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| 160 | my ($single_rel_files, $ambiguous_rel_files,$distro_similar,$distro_match) = pb_conf_get("osrelfile","osrelambfile","osambiguous","osrelexpr");
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| 161 |
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| 162 | my $release;
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| 163 | my $distro;
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| 164 |
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| 165 | # Begin to test presence of non-ambiguous files
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| 166 | # that way we reduce the choice
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| 167 | my ($d,$r);
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| 168 | while (($d,$r) = each %$single_rel_files) {
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| 169 | if (-f "$r" && ! -l "$r") {
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| 170 | my $tmp=pb_get_content("$r");
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| 171 | # Found the only possibility.
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| 172 | # Try to get version and return
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| 173 | if (defined ($distro_match->{$d})) {
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| 174 | ($release) = $tmp =~ m/$distro_match->{$d}/m;
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| 175 | } else {
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| 176 | print STDERR "Unable to find $d version in $r\n";
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| 177 | print STDERR "Please report to the maintainer bruno_at_project-builder.org\n";
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| 178 | $release = "unknown";
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| 179 | }
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| 180 | return($d,$release);
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| 181 | }
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| 182 | }
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| 183 |
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| 184 | # Now look at ambiguous files
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| 185 | # Ubuntu includes a /etc/debian_version file that creates an ambiguity with debian
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| 186 | # So we need to look at distros in reverse alphabetic order to treat ubuntu always first via lsb
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| 187 | foreach $d (reverse keys %$ambiguous_rel_files) {
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| 188 | $r = $ambiguous_rel_files->{$d};
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| 189 | if (-f "$r" && !-l "$r") {
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| 190 | # Found one possibility.
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| 191 | # Get all distros concerned by that file
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| 192 | my $tmp=pb_get_content("$r");
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| 193 | my $found = 0;
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| 194 | my $ptr = $distro_similar->{$d};
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| 195 | pb_log(2,"amb: ".Dumper($ptr)."\n");
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| 196 | $release = "unknown";
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| 197 | foreach my $dd (split(/,/,$ptr)) {
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| 198 | pb_log(2,"check $dd\n");
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| 199 | # Try to check pattern
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| 200 | if (defined $distro_match->{$dd}) {
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| 201 | pb_log(2,"cmp: $distro_match->{$dd} - vs - $tmp\n");
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| 202 | ($release) = $tmp =~ m/$distro_match->{$dd}/m;
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| 203 | if ((defined $release) && ($release ne "unknown")) {
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| 204 | $distro = $dd;
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| 205 | $found = 1;
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| 206 | last;
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| 207 | }
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| 208 | }
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| 209 | }
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| 210 | if ($found == 0) {
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| 211 | print STDERR "Unable to find $d version in $r\n";
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| 212 | print STDERR "Please report to the maintainer bruno_at_project-builder.org\n";
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| 213 | $release = "unknown";
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| 214 | } else {
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| 215 | return($distro,$release);
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| 216 | }
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| 217 | }
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| 218 | }
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| 219 | return("unknown","unknown");
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| 220 | }
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| 221 |
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| 222 |
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| 223 | =item B<pb_distro_installdeps>
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| 224 |
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| 225 | This function install the dependencies required to build the package on an RPM based distro
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| 226 | dependencies can be passed as a parameter in which case they are not computed
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| 227 |
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| 228 | =cut
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| 229 |
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| 230 | sub pb_distro_installdeps {
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| 231 |
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| 232 | # SPEC file
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| 233 | my $f = shift || undef;
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| 234 | my $dtype = shift || undef;
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| 235 | my $dupd = shift || undef;
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| 236 | my $deps = shift || undef;
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| 237 |
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| 238 | # Protection
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| 239 | return if (not defined $dupd);
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| 240 |
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| 241 | # Get dependecies in the build file if not forced
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| 242 | $deps = pb_distro_getdeps($f, $dtype) if (not defined $deps);
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| 243 | pb_log(2,"deps: $deps\n");
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| 244 | return if ((not defined $deps) || ($deps =~ /^\s*$/));
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| 245 | if ($deps !~ /^[ ]*$/) {
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| 246 | pb_system("$dupd $deps","Installing dependencies ($deps)");
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| 247 | }
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| 248 | }
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| 249 |
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| 250 | =item B<pb_distro_getdeps>
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| 251 |
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| 252 | This function computes the dependencies indicated in the build file and return them as a string of packages to install
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| 253 |
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| 254 | =cut
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| 255 |
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| 256 | sub pb_distro_getdeps {
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| 257 |
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| 258 | my $f = shift || undef;
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| 259 | my $dtype = shift || undef;
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| 260 |
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| 261 | my $regexp = "";
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| 262 | my $deps = "";
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| 263 | my $sep = $/;
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| 264 |
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| 265 | # Protection
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| 266 | return("") if (not defined $dtype);
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| 267 | return("") if (not defined $f);
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| 268 |
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| 269 | pb_log(3,"entering pb_distro_getdeps: $dtype - $f\n");
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| 270 | if ($dtype eq "rpm") {
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| 271 | # In RPM this could include files, but we do not handle them atm.
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| 272 | $regexp = '^BuildRequires:(.*)$';
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| 273 | } elsif ($dtype eq "deb") {
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| 274 | $regexp = '^Build-Depends:(.*)$';
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| 275 | } elsif ($dtype eq "ebuild") {
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| 276 | $sep = '"'.$/;
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| 277 | $regexp = '^DEPEND="(.*)"\n'
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| 278 | } else {
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| 279 | # No idea
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| 280 | return("");
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| 281 | }
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| 282 | pb_log(2,"regexp: $regexp\n");
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| 283 |
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| 284 | # Preserve separator before using the one we need
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| 285 | my $oldsep = $/;
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| 286 | $/ = $sep;
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| 287 | open(DESC,"$f") || die "Unable to open $f";
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| 288 | while (<DESC>) {
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| 289 | pb_log(4,"read: $_\n");
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| 290 | next if (! /$regexp/);
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| 291 | chomp();
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| 292 | # What we found with the regexp is the list of deps.
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| 293 | pb_log(2,"found deps: $_\n");
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| 294 | s/$regexp/$1/i;
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| 295 | # Remove conditions in the middle and at the end for deb
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| 296 | s/\(\s*[><=]+.*\)[^,]*,/,/g;
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| 297 | s/\(\s*[><=]+.*$//g;
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| 298 | # Same for rpm
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| 299 | s/[><=]+[^,]*,/,/g;
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| 300 | s/[><=]+.*$//g;
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| 301 | # Improve string format (remove , and spaces at start, end and in double
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| 302 | s/,/ /g;
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| 303 | s/^\s*//;
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| 304 | s/\s*$//;
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| 305 | s/\s+/ /g;
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| 306 | $deps .= " ".$_;
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| 307 | }
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| 308 | close(DESC);
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| 309 | $/ = $oldsep;
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| 310 | pb_log(2,"now deps: $deps\n");
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| 311 | my $deps2 = pb_distro_only_deps_needed($dtype,$deps);
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| 312 | return($deps2);
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| 313 | }
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| 314 |
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| 315 |
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| 316 | =item B<pb_distro_only_deps_needed>
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| 317 |
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| 318 | This function returns only the dependencies not yet installed
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| 319 |
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| 320 | =cut
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| 321 |
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| 322 | sub pb_distro_only_deps_needed {
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| 323 |
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| 324 | my $dtype = shift || undef;
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| 325 | my $deps = shift || undef;
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| 326 |
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| 327 | return("") if ((not defined $deps) || ($deps =~ /^\s*$/));
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| 328 | my $deps2 = "";
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| 329 | # Avoid to install what is already there
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| 330 | foreach my $p (split(/ /,$deps)) {
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| 331 | if ($dtype eq "rpm") {
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| 332 | my $res = pb_system("rpm -q --whatprovides --quiet $p","","quiet");
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| 333 | next if ($res eq 0);
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| 334 | } elsif ($dtype eq "deb") {
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| 335 | my $res = pb_system("dpkg -L $p","","quiet");
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| 336 | next if ($res eq 0);
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| 337 | } elsif ($dtype eq "ebuild") {
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| 338 | } else {
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| 339 | # Not reached
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| 340 | }
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| 341 | pb_log(2,"found deps2: $p\n");
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| 342 | $deps2 .= " $p";
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| 343 | }
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| 344 |
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| 345 | $deps2 =~ s/^\s*//;
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| 346 | pb_log(2,"now deps2: $deps2\n");
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| 347 | return($deps2);
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| 348 | }
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| 349 |
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| 350 | =item B<pb_distro_setuprepo>
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| 351 |
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| 352 | This function sets up potential additional repository to the build environment
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| 353 |
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| 354 | =cut
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| 355 |
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| 356 | sub pb_distro_setuprepo {
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| 357 |
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| 358 | my $ddir = shift || undef;
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| 359 | my $dver = shift;
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| 360 | my $darch = shift;
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| 361 | my $dtype = shift || undef;
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| 362 |
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| 363 | my ($addrepo) = pb_conf_read("$ENV{'PBDESTDIR'}/pbrc","addrepo");
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| 364 | return if (not defined $addrepo);
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| 365 |
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| 366 | my $param = pb_distro_get_param($ddir,$dver,$darch,$addrepo);
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| 367 | return if ($param eq "");
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| 368 |
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| 369 | # Loop on the list of additional repo
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| 370 | foreach my $i (split(/,/,$param)) {
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| 371 |
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| 372 | my ($scheme, $account, $host, $port, $path) = pb_get_uri($i);
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| 373 | my $bn = basename($i);
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| 374 |
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| 375 | # The repo file can be local or remote. download or copy at the right place
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| 376 | if (($scheme eq "ftp") || ($scheme eq "http")) {
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| 377 | pb_system("wget -O $ENV{'PBTMP'}/$bn $i","Donwloading additional repository file $i");
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| 378 | } else {
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| 379 | copy($i,$ENV{'PBTMP'}/$bn);
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| 380 | }
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| 381 |
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| 382 | # The repo file can be a real file or a package
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| 383 | if ($dtype eq "rpm") {
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| 384 | if ($bn =~ /\.rpm$/) {
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| 385 | my $pn = $bn;
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| 386 | $pn =~ s/\.rpm//;
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| 387 | if (pb_system("rpm -q --quiet $pn","","quiet") != 0) {
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| 388 | pb_system("sudo rpm -Uvh $ENV{'PBTMP'}/$bn","Adding package to setup repository");
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| 389 | }
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| 390 | } elsif ($bn =~ /\.repo$/) {
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| 391 | # Yum repo
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| 392 | pb_system("sudo mv $ENV{'PBTMP'}/$bn /etc/yum.repos.d","Adding yum repository") if (not -f "/etc/yum.repos.d/$bn");
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| 393 | } elsif ($bn =~ /\.addmedia/) {
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| 394 | # URPMI repo
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| 395 | # We should test that it's not already a urpmi repo
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| 396 | pb_system("chmod 755 $ENV{'PBTMP'}/$bn ; sudo $ENV{'PBTMP'}/$bn 2>&1 > /dev/null","Adding urpmi repository");
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| 397 | } else {
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| 398 | pb_log(0,"Unable to deal with repository file $i on rpm distro ! Please report to dev team\n");
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| 399 | }
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| 400 | } elsif ($dtype eq "deb") {
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| 401 | if (($bn =~ /\.sources.list$/) && (not -f "/etc/apt/sources.list.d/$bn")) {
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| 402 | pb_system("sudo mv $ENV{'PBTMP'}/$bn /etc/apt/sources.list.d","Adding apt repository");
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| 403 | pb_system("sudo apt-get update","Updating apt repository");
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| 404 | } else {
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| 405 | pb_log(0,"Unable to deal with repository file $i on deb distro ! Please report to dev team\n");
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|---|
| 406 | }
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|---|
| 407 | } else {
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|---|
| 408 | pb_log(0,"Unable to deal with repository file $i on that distro ! Please report to dev team\n");
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|---|
| 409 | }
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|---|
| 410 | }
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|---|
| 411 | return;
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| 412 | }
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| 413 |
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| 414 | =item B<pb_distro_get_param>
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| 415 |
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| 416 | This function gets the parameter in the conf file from the most precise tuple up to default
|
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| 417 |
|
|---|
| 418 | =cut
|
|---|
| 419 |
|
|---|
| 420 | sub pb_distro_get_param {
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|---|
| 421 |
|
|---|
| 422 | my $param = "";
|
|---|
| 423 | my $ddir = shift;
|
|---|
| 424 | my $dver = shift;
|
|---|
| 425 | my $darch = shift;
|
|---|
| 426 | my $opt = shift;
|
|---|
| 427 | my $dfam = shift || "unknown";
|
|---|
| 428 | my $dtype = shift || "unknown";
|
|---|
| 429 |
|
|---|
| 430 | if (defined $opt->{"$ddir-$dver-$darch"}) {
|
|---|
| 431 | $param = $opt->{"$ddir-$dver-$darch"};
|
|---|
| 432 | } elsif (defined $opt->{"$ddir-$dver"}) {
|
|---|
| 433 | $param = $opt->{"$ddir-$dver"};
|
|---|
| 434 | } elsif (defined $opt->{"$ddir"}) {
|
|---|
| 435 | $param = $opt->{"$ddir"};
|
|---|
| 436 | } elsif (defined $opt->{$dfam}) {
|
|---|
| 437 | $param = $opt->{$dfam};
|
|---|
| 438 | } elsif (defined $opt->{$dtype}) {
|
|---|
| 439 | $param = $opt->{$dtype};
|
|---|
| 440 | } elsif (defined $opt->{"default"}) {
|
|---|
| 441 | $param = $opt->{"default"};
|
|---|
| 442 | } else {
|
|---|
| 443 | $param = "";
|
|---|
| 444 | }
|
|---|
| 445 |
|
|---|
| 446 | # Allow replacement of variables inside the parameter such as ddir, dver, darch for rpmbootstrap
|
|---|
| 447 | eval { $param =~ s/(\$\w+)/$1/eeg };
|
|---|
| 448 |
|
|---|
| 449 | pb_log(2,"DEBUG: pb_distro_get_param on ",Dumper($opt)," returns $param\n");
|
|---|
| 450 | return($param);
|
|---|
| 451 |
|
|---|
| 452 | }
|
|---|
| 453 |
|
|---|
| 454 |
|
|---|
| 455 | =back
|
|---|
| 456 |
|
|---|
| 457 | =head1 WEB SITES
|
|---|
| 458 |
|
|---|
| 459 | 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/>.
|
|---|
| 460 |
|
|---|
| 461 | =head1 USER MAILING LIST
|
|---|
| 462 |
|
|---|
| 463 | None exists for the moment.
|
|---|
| 464 |
|
|---|
| 465 | =head1 AUTHORS
|
|---|
| 466 |
|
|---|
| 467 | The Project-Builder.org team L<http://trac.project-builder.org/> lead by Bruno Cornec L<mailto:bruno@project-builder.org>.
|
|---|
| 468 |
|
|---|
| 469 | =head1 COPYRIGHT
|
|---|
| 470 |
|
|---|
| 471 | Project-Builder.org is distributed under the GPL v2.0 license
|
|---|
| 472 | described in the file C<COPYING> included with the distribution.
|
|---|
| 473 |
|
|---|
| 474 | =cut
|
|---|
| 475 |
|
|---|
| 476 |
|
|---|
| 477 | 1;
|
|---|
