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|
#!/usr/bin/perl
#
# Common.pl: Holds routines common to a few scripts of
# localization-config
# Based on the example apt-cache in libapt-pkg-perl
#
use AptPkg::Config '$_config';
use AptPkg::System '$_system';
use AptPkg::Cache;
use AptPkg::Version;
require '/usr/lib/localization-config/common/log.pl';
my $cache;
my $vs;
sub init {
# initialise the global config object with the default values and
# setup the $_system object
$_config->init;
$_system = $_config->system;
# supress cache building messages
$_config->{quiet} = 2;
# set up the cache
$cache = AptPkg::Cache->new;
$vs = $_system->versioning;
}
sub is_installed($) {
my ($pack) = @_;
my $p = $cache->{$pack};
unless ($p)
{
return 0;
}
if ($p->{CurrentVer}) {
return 1;
} else {
return 0;
}
}
sub is_available($) {
my ($pack) = @_;
my $p = $cache->{$pack};
my $res = 0;
log_msg("$0: Package: $pack");
if (my $available = $p->{VersionList})
{
# Check the first available version in package version list
# we only care about the latest package anyway.
$curver = @$available[0]->{VerStr};
log_msg("$0: Package $p is available");
$res = 1;
}
return $res;
}
# We only use this subroutine from the scripts.
# It takes the package name and it's version map
# and it returns the most probable release name for
# this package.
# According to this release name, we execute the
# appropriate configuration script.
sub get_release($) {
my ($pack, %vermap) = @_;
my $p = $cache->{$pack};
my $rel;
unless ($p)
{
log_msg("$0: Fallback to /etc/debian_version");
$rel = get_debian_version();
log_msg("$0: Release to be used: $release");
return $rel;
}
log_msg("$0: Package: $pack");
if ($p->{CurrentVer}) {
my $curver = $p->{CurrentVer}{VerStr};
$rel = check_vermap($curver, %vermap);
log_msg("$0: CurrentVer: $curver");
} else {
log_msg("$0: Not Installed");
log_msg("$0: Checking Available versions");
if (my $available = $p->{VersionList})
{
# Check the first available version in package version list
# we only care about the latest package anyway.
$curver = @$available[0]->{VerStr};
$rel = check_vermap($curver, %vermap);
}
}
if ($rel eq "") {
$rel = get_debian_version();
}
log_msg("$0: Release to be used: $rel");
return $rel;
}
# This subroutine does the actual retrieval of the
# release name in the version map.
sub check_vermap($) {
my ($ver, %vermap) = @_;
my $rel;
for $v (sort keys %vermap) {
if ($ver ge $v) {
# print "$v\t".$vermap{$v}->{'RELEASE'}."\n";
$rel = $vermap{$v}->{'RELEASE'};
}
}
return $rel;
}
# Will return the first correct supported Debian version
# according to the value in /etc/debian_version
# This is used only as last resort.
sub get_debian_version {
my %supported_versions = ( 'woody' => { RELEASE => 'woody' },
'sarge' => { RELEASE => 'sarge' },
'testing/unstable' => { RELEASE => 'etch' },
'3.1' => { RELEASE => 'sarge' }
);
my $debver_file= "/etc/debian_version";
my $version, my $found, my $folder;
open(DAT, $debver_file) || log_die("$0: Could not open /etc/debian_version!");
my @raw_data=<DAT>;
close(DAT);
foreach $version (@raw_data) {
chop($version);
if (defined($found = $supported_versions{$version})) {
return $found->{'RELEASE'};
}
}
}
sub get_subarch() {
my $subarch = 'none';
my $proc_arch = `grep ^machine /proc/cpuinfo`;
if ($proc_arch =~ /PReP.Blackhawk/) {
$subarch = 'ppcbug';
} elsif ($proc_arch =~ /PReP/ ) {
$subarch = 'prep';
} elsif ($proc_arch =~ /CHRP/ ) {
$subarch = 'chrp';
} elsif ($proc_arch =~ /NewWorld/ ) {
$subarch = 'pmac_newworld';
} elsif ($proc_arch =~ /OldWorld/ ) {
$subarch = 'pmac_oldworld';
} elsif ($proc_arch =~ /Amiga/ ) {
$subarch = 'amiga';
}
return $subarch;
}
1;
|
