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| | Current File : //usr/bin/update-perl-sax-parsers |
#!/usr/bin/perl
## ----------------------------------------------------------------------
## Debian update-perl-sax-parsers version 0.3
## ----------------------------------------------------------------------
## Copyright (C) 2001-2003 Ardo van Rangelrooij
## Copyright (C) 2007 Niko Tyni
##
## This is free software; see the GNU General Public Licence version 2
## or later for copying conditions. There is NO warranty.
## ----------------------------------------------------------------------
## ----------------------------------------------------------------------
use strict;
## ----------------------------------------------------------------------
use File::Spec;
use Getopt::Long;
use XML::SAX;
use XML::SAX::Debian;
use File::Temp qw(tempfile);
## ----------------------------------------------------------------------
$0 =~ m|[^/]+$|;
## ----------------------------------------------------------------------
my $name = $&;
## ----------------------------------------------------------------------
my $add = '';
my @directory = ();
my $file = '';
my $help = '';
my $quiet = '';
my $remove = '';
my $test = '';
my $update = '';
my $version = '';
my $ucf;
my $priority;
## ----------------------------------------------------------------------
if ( ! GetOptions(
'add=s' => \$add,
'directory=s' => \@directory,
'file=s' => \$file,
'help' => \$help,
'quiet' => \$quiet,
'remove=s' => \$remove,
'test' => \$test,
'update' => \$update,
'version' => \$version,
'priority=i' => \$priority,
'ucf=i' => \$ucf,
)
)
{
&usage;
exit 1;
}
## ----------------------------------------------------------------------
if ( $version )
{
&version;
exit 0;
}
## ----------------------------------------------------------------------
if ( $help )
{
&usage;
exit 0;
}
## ----------------------------------------------------------------------
print STDERR "$name: test mode - Perl SAX parsers file will not be updated\n"
if $test && ! $quiet;
## ----------------------------------------------------------------------
# default priority is 50 unless --directory was specified
# with --directory, default to 0 (no priority in the filenames)
$priority = (@directory ? 0 : 50) if not defined $priority;
## ----------------------------------------------------------------------
my $PARSER_DETAILS_DIR = "/var/lib/libxml-sax-perl/ParserDetails.d";
push( @directory, $PARSER_DETAILS_DIR) if ! @directory;
## ----------------------------------------------------------------------
# use ucf by default if --file is not specified
$ucf = ($file ? 0 : 1) if not defined $ucf;
## ----------------------------------------------------------------------
my $PARSER_DETAILS_FILE = "/etc/perl/XML/SAX/ParserDetails.ini";
$file = $PARSER_DETAILS_FILE if ! $file;
## ----------------------------------------------------------------------
unless (XML::SAX->can("_is_vendor_supplied")) {
print STDERR "$name: Non-vendor version of XML::SAX is installed.\n";
print STDERR "$name: Automatic registration of SAX parsers might not work.\n";
}
if ( $add )
{
print "$name: Registering Perl SAX parser $add with priority $priority...\n"
unless $quiet;
XML::SAX::Debian->save_parsers_debian( $add, $directory[0], $priority );
}
elsif ( $remove )
{
print "$name: Unregistering Perl SAX parser $remove with priority $priority...\n"
unless $quiet;
my $parser_file = $remove;
$parser_file = "${priority}-$parser_file" if $priority != 0;
$parser_file = File::Spec->catfile( $directory[0], $parser_file );
unlink( $parser_file );
}
elsif ( $update )
{
print "$name: Updating overall Perl SAX parser modules info file...\n"
unless $quiet;
my ($handle, $tmpfile);
if ($ucf) {
($handle, $tmpfile) = tempfile();
chmod 0644, $tmpfile or die("chmod $tmpfile: $!");
} else {
open( $handle, ">$file" )
|| die "Cannot write to $file: $!";
}
foreach my $directory ( @directory)
{
opendir( PARSER_DETAILS_DIR, $directory )
|| die "Cannot access $directory: $!";
my @files = sort readdir ( PARSER_DETAILS_DIR );
for my $parser_details ( @files )
{
next if $parser_details =~ /^\.\.?$/; # skip . and ..
open( PARSER_DETAILS, "$directory/$parser_details" )
|| die "Cannot read from $parser_details: $!";
while ( <PARSER_DETAILS> ) { print $handle $_; }
close( PARSER_DETAILS );
}
closedir( PARSER_DETAILS_DIR );
}
close( $handle );
if ($ucf) {
system("ucf", "--debconf-ok", "--sum-file", "/var/lib/libxml-sax-perl/ParserDetails.ini.md5sum", $tmpfile, $file);
unlink $tmpfile or die("unlink $tmpfile: $!");
}
}
## ----------------------------------------------------------------------
exit 0;
## ----------------------------------------------------------------------
sub usage
{
print STDERR <<END;
Usage:
$name <options> --add <parser_module>
$name <options> --remove <parser_module>
$name <options> --update
Options:
--directory Perl SAX parser module info file directory to be used
as target for 'add'/'remove' or as sources for 'update'
(default = '/var/lib/libxml-sax-perl/ParserDetails.d')
--priority The priority of the parser to add. The parser with the
highest priority is the default parser.
--file Perl SAX parser module info file to be updated
(default = '/etc/perl/XML/SAX/ParserDetails.ini')
--ucf X Forcibly disable (X == 0) or enable (X != 0) the use
of ucf with '--update'.
--help display this help text (usage)
--quiet be quiet
--test do not modify any files, enable debugging mode
--version display version number
END
}
## ----------------------------------------------------------------------
sub version
{
print "Debian $name version 0.4\n";
}
## ----------------------------------------------------------------------
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