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package SystemInstaller::Log;
# $Id $
# Copyright (c) 2001 International Business Machines
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# Sean Dague <japh@us.ibm.com>
use strict;
require Exporter;
use vars qw(@ISA @EXPORT_OK @EXPORT %EXPORT_TAGS $VERSION $DEBUG $VERBOSE $FH);
push @ISA, qw(Exporter);
%EXPORT_TAGS = (
'all' => [
qw(debug verbose start_debug start_verbose stop_debug stop_verbose logger_file get_debug get_verbose)
],
'print' => [
qw(debug verbose)
],
'control' => [
qw(start_debug start_verbose stop_debug stop_verbose logger_file get_debug get_verbose)
],
);
@EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
$VERSION = sprintf("%d.%02d", q$Revision: 1.4 $ =~ /(\d+)\.(\d+)/);
# The following are encapsulated so that we can change the internals without having to change
# code that uses it
{
$DEBUG = 0;
$VERBOSE = 0;
$FH = \*STDERR;
sub start_debug {
$DEBUG = 1;
}
sub stop_debug {
$DEBUG = 0;
}
sub get_debug {
return $DEBUG;
}
sub start_verbose {
$VERBOSE = 1;
}
sub stop_verbose {
$VERBOSE = 0;
}
sub get_verbose {
return $VERBOSE;
}
sub logger_file {
my $fh = shift;
$FH = $fh;
}
sub debug {
if($DEBUG) {
my ($package, $filename, $line) = caller;
print $FH "[$package :: Line $line] " . join(', ', @_) . "\n";
}
}
sub verbose {
if($VERBOSE) {
my ($package, $filename, $line) = caller;
print $FH ×tamp . " [$package :: Line $line] " . join(', ', @_) . "\n";
}
}
sub timestamp {
my ($sec, $min, $hour, $mday,$mon, $year, $wday, $yday, $isdst) = localtime(time);
$year=$year+1900;
return "$year-$mon-$mday $hour:$min:$sec";
}
}
1;
__END__
=head1 NAME
SystemInstaller::Log - Logging and verbose mechanism for SystemInstaller
=head1 SYNOPSIS
use SystemInstaller::Log qw(:print);
=head1 DESCRIPTION
Contains functions for logging & verbose output. The functions are:
=over 4
=item I<start_verbose>
Turns verbose flag on
=item I<stop_verbose>
Turns verbose flag off
=item I<get_verbose>
Gets verbose value
=item I<start_debug>
Turns debug flag on
=item I<stop_debug>
Turns debug flag off
=item I<get_debug>
Gets debug value
=item I<logger_file>
Sets output file handle
=item I<verbose(<STRING>)>
Outputs <STRING> if verbose is set
=item I<debug(<STRING>)>
Outputs <STRING> if debug is set
=back
=head1 EXPORTS
None by default. The following export tags are provided:
=over 4
=item I<:all>
all specifications
=item I<:print>
verbose & debug
=item I<:control>
start_debug start_verbose stop_debug stop_verbose logger_file get_debug get_verbose
=back
=head1 AUTHOR
Sean Dague <japh@us.ibm.com>
=head1 SEE ALSO
L<perl>.
=cut
|
