2512f54e33
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@74 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
352 lines
9.1 KiB
Perl
352 lines
9.1 KiB
Perl
#!/usr/bin/perl
|
|
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
|
|
|
|
package xCAT::MsgUtils;
|
|
|
|
use strict;
|
|
|
|
use locale;
|
|
use Socket;
|
|
use File::Path;
|
|
|
|
my $msgs;
|
|
my $distro;
|
|
|
|
$::XCATLOG = "/var/log/xcat";
|
|
$::NOK = -1;
|
|
$::OK = 0;
|
|
umask(0022); # This sets umask for all files so that group and world only
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
=head1 xCAT::MsgUtils
|
|
|
|
|
|
=head2 Package Description
|
|
|
|
|
|
This program module file, supports the xcat messaging and logging
|
|
|
|
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
=head2 Package Dependancies
|
|
|
|
use strict;
|
|
use Fcntl qw(:flock);
|
|
use File::Basename;
|
|
use File::Find;
|
|
use File::Path; # Provides mkpath()
|
|
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
=head1 Subroutines by Functional Group
|
|
|
|
=cut
|
|
|
|
=head3 message
|
|
|
|
Display a msg stdout, stderr, or a log file.
|
|
If callback routine is provide, the message will be returned to the callback
|
|
routine and logged, if logging is requested.
|
|
This function is primarily meant for commands and other code that is sending
|
|
output directly to the user. Even the log is really a capture of this
|
|
interactive output.
|
|
|
|
Arguments:
|
|
The arguments of the message() function are:
|
|
|
|
if $::VERBOSE is set, the message will be displayed.
|
|
|
|
If $::LOG_FILE_HANDLE is set, the message goes to both
|
|
the screen and that log file. (Verbose msgs will be sent to
|
|
the log file even if $::VERBOSE is not set.)
|
|
A timestamp will automatically be put in front on any message
|
|
that is logged unless the T option is specified.
|
|
|
|
if address of the call_back is provided,
|
|
then the message will be returned
|
|
as data to the call_back routine.
|
|
|
|
- The argument is the message to be displayed/logged.
|
|
|
|
|
|
Here's the meaning of the 1st character:
|
|
I - informational goes to stdout
|
|
E - error. This type of message will be sent to stderr.
|
|
V - verbose. This message should only be displayed,
|
|
if $::VERBOSE is set.
|
|
T - Do not log timestamp,
|
|
|
|
If $::LOG_FILE_HANDLE is set, the message goes to both
|
|
the screen and that log file. (Verbose msgs will be sent to
|
|
the log file even if $::VERBOSE is not set.)
|
|
A timestamp will automatically be put in front on any message
|
|
that is logged.
|
|
Optionally a T can be put before any of the above characters
|
|
"not" put a timestamp on
|
|
before the message when it is logged.
|
|
Note: T must be the first character.
|
|
|
|
|
|
Returns:
|
|
none
|
|
|
|
Error:
|
|
_none
|
|
|
|
Example:
|
|
xCAT::MsgUtils->message('E', "Operation $value1 failed\n");
|
|
Use of T flag
|
|
xCAT::MsgUtils->message('TI', "Operation $value1 failed\n");
|
|
Use of callback
|
|
xCAT::MsgUtils->message('I', $rsp,$call_back);
|
|
where $rsp is a data response structure for the callback function
|
|
|
|
|
|
Comments:
|
|
Returns:
|
|
none
|
|
|
|
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
sub message
|
|
{
|
|
|
|
# Process the arguments
|
|
shift; # get rid of the class name
|
|
my $sevcode = shift;
|
|
my $msg = shift;
|
|
my $call_back = shift; # optional
|
|
|
|
# Parse the severity code
|
|
my $i = 1;
|
|
my $notimestamp = 0;
|
|
my $sev = substr($sevcode, 0, 1);
|
|
|
|
# should be I, E, V, T
|
|
if ($sev eq 'T') # do not put timestamp
|
|
{
|
|
$notimestamp = 1; # no timestamp
|
|
$i = 2; # logically shift everything by 1 char
|
|
$sev = substr($sevcode, 1, 1); # now should be either I,E,V
|
|
}
|
|
|
|
my $stdouterrf = \*STDOUT;
|
|
my $stdouterrd = '';
|
|
if (my $sev =~ /[E]/)
|
|
{
|
|
$stdouterrf = \*STDERR;
|
|
$stdouterrd = '1>&2';
|
|
}
|
|
|
|
if (defined($::LOG_FILE_HANDLE))
|
|
{
|
|
|
|
if ($notimestamp == 0)
|
|
{ # print a timestamp
|
|
my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =
|
|
localtime(time);
|
|
my $time = $hour . ":" . $min . ":" . $sec . " ";
|
|
print $::LOG_FILE_HANDLE $time;
|
|
print $::LOG_FILE_HANDLE " ";
|
|
}
|
|
print $::LOG_FILE_HANDLE $msg;
|
|
}
|
|
|
|
# if V option and $::VERBOSE set or not V option then display
|
|
# Note Verbose messages, will be thrown away if verbose is not
|
|
# turned on and there is no logging.
|
|
if (($sev eq 'V' && $::VERBOSE) || ($sev ne 'V'))
|
|
{
|
|
if ($call_back)
|
|
{ # callback routine provided
|
|
$call_back->($msg);
|
|
}
|
|
else
|
|
{
|
|
print $stdouterrf $msg; # print the message
|
|
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
=head2 Message Logging Routines
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
=head3 backup_logfile
|
|
|
|
Backup the current logfile. Move logfile to logfile.1. Shift all other logfiles
|
|
(logfile.[1-3]) up one number. The original logfile.4 is removed as in a FIFO.
|
|
|
|
Arguments:
|
|
$logFileName
|
|
Returns:
|
|
$::OK
|
|
Error:
|
|
undefined
|
|
Example:
|
|
xCAT::MsgUtils->backup_logfile($logfile);
|
|
Comments:
|
|
Never used outside of ServerUtils.
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
sub backup_logfile
|
|
{
|
|
my ($class, $logfile) = @_;
|
|
|
|
my ($logfile1) = $logfile . ".1";
|
|
my ($logfile2) = $logfile . ".2";
|
|
my ($logfile3) = $logfile . ".3";
|
|
my ($logfile4) = $logfile . ".4";
|
|
|
|
if (-f $logfile)
|
|
{
|
|
rename($logfile3, $logfile4) if (-f $logfile3);
|
|
rename($logfile2, $logfile3) if (-f $logfile2);
|
|
rename($logfile1, $logfile2) if (-f $logfile1);
|
|
rename($logfile, $logfile1);
|
|
}
|
|
return $::OK;
|
|
}
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
=head3 start_logging
|
|
|
|
Start logging messages to a logfile. Return the log file handle so it
|
|
can be used to close the file when done logging.
|
|
|
|
Arguments:
|
|
$logFile
|
|
Returns:
|
|
$::LOG_FILE_HANDLE
|
|
Globals:
|
|
$::LOG_FILE_HANDLE
|
|
$::XCATLOG
|
|
Error:
|
|
$::NOK
|
|
Example:
|
|
xCAT::MsgUtils->start_logging($cfmupdatenode.log);
|
|
Comments:
|
|
Common method for logging script runtime output.
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
sub start_logging
|
|
{
|
|
my ($class, $logfile) = @_;
|
|
my ($cmd, $rc);
|
|
xCAT::MsgUtils->backup_logfile($logfile);
|
|
|
|
# create the log directory if it's not already there
|
|
if (!-d $::XCATLOG)
|
|
{
|
|
mkdir($::XCATLOG, 0755);
|
|
}
|
|
|
|
# open the log file
|
|
unless (open(LOGFILE, ">>$logfile"))
|
|
{
|
|
|
|
# Cannot open file
|
|
xCAT::MsgUtils->message("E", "Cannot open file: $logfile.\n");
|
|
return $::NOK;
|
|
}
|
|
|
|
$::LOG_FILE_HANDLE = \*LOGFILE;
|
|
|
|
# Print the date to the top of the logfile
|
|
my $sdate = localtime(time);
|
|
chomp $sdate;
|
|
my $program = xCAT::Utils->programName();
|
|
xCAT::MsgUtils->message(
|
|
"TV",
|
|
"#--------------------------------------------------------------------------#\n"
|
|
);
|
|
xCAT::MsgUtils->message("TV", "$program: Logging Started:$sdate\n");
|
|
xCAT::MsgUtils->message("TV", "Input: $::command_line\n");
|
|
xCAT::MsgUtils->message(
|
|
"TV",
|
|
"#--------------------------------------------------------------------------#\n"
|
|
);
|
|
|
|
return ($::LOG_FILE_HANDLE);
|
|
}
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
=head3 stop_logging
|
|
|
|
Turn off message logging close file. Routine expects to have a file handle
|
|
passed in via the global $::LOG_FILE_HANDLE.
|
|
|
|
Arguments:
|
|
|
|
Returns:
|
|
$::OK
|
|
Globals:
|
|
$::LOG_FILE_HANDLE
|
|
Error:
|
|
none
|
|
Example:
|
|
xCAT::MsgUtils->stop_logging($cfmupdatenode.log);
|
|
Comments:
|
|
closes the logfile and undefines $::LOG_FILE_HANDLE
|
|
even on error.
|
|
|
|
=cut
|
|
|
|
#--------------------------------------------------------------------------------
|
|
|
|
sub stop_logging
|
|
{
|
|
my ($class) = @_;
|
|
if (defined($::LOG_FILE_HANDLE))
|
|
{
|
|
|
|
my $sdate = localtime(time);
|
|
chomp $sdate;
|
|
my $program = xCAT::Utils->programName();
|
|
xCAT::MsgUtils->message(
|
|
"TV",
|
|
"#--------------------------------------------------------------------------#\n"
|
|
);
|
|
xCAT::MsgUtils->message("TV", "$program: Logging Stopped: $sdate\n");
|
|
xCAT::MsgUtils->message(
|
|
"TV",
|
|
"#--------------------------------------------------------------------------#\n"
|
|
);
|
|
|
|
close($::LOG_FILE_HANDLE);
|
|
undef $::LOG_FILE_HANDLE;
|
|
}
|
|
return $::OK;
|
|
}
|
|
|
|
1;
|
|
|