Re: Is there a module which Perl has to load when using any module?

Thanks for all the replies. I did figure out something...just create my own module, and automatically load it with PERL5OPT.

In your bashrc (or whichever) put

export PERL5OPT=-MLogger
[download]

Then put this Logger.pm in your PERL5LIB

package Logger;
use strict;
use warnings;

print "Logger\n";
1;
[download]

Of course this is just a rudimentary test. You could put whatever code you wanted in there....something to append to a logfile. I wonder if you would need to flock it, if a bunch of perl scripts were running constantly.

I'm not really a human, but I play one on earth. flash japh

Comment on Re: Is there a module which Perl has to load when using any module? Select or Download Code

Replies are listed 'Best First'.
Re^2: Is there a module which Perl has to load when using any module? by ihb (Deacon) on May 02, 2005 at 22:19 UTC
I don't understand how this would work. How does `use`/`require` interact with `Logger`? `ihb` See perltoc if you don't know which perldoc to read!	[reply] [d/l] [select]
Re^3: Is there a module which Perl has to load when using any module? by zentara (Cardinal) on May 03, 2005 at 09:51 UTC
I havn't experimented further with it, but what it does, is allow you to log each Perl script that runs, without any changes to each script. You could then just filter the list of Perl scripts from the log, and search thru them for "use and require statements". That would be an easy way of telling which modules are used on your setup. When I have the inclination, I want to experiment around with putting END{} blocks in the Logger module(as Merlyn suggests for printing actual modules loaded, and see if it can be exported to main automatically.(I'm only a module novice, so I may be on a dead-end street here) The idea is to monitor a system, running for a few weeks, to see which modules are used, or even "used the most". I'm not really a human, but I play one on earth. flash japh	[reply]
Re^4: Is there a module which Perl has to load when using any module? by ihb (Deacon) on May 04, 2005 at 12:17 UTC
The idea is to monitor a system, running for a few weeks, to see which modules are used, or even "used the most". Oh, I see. That's another task than the one in the OP. Yeah, if that's what you're after then a combination of loading a module through PERL5OPT that adds a logger hook in `@INC` seems like a working solution. `ihb` See perltoc if you don't know which perldoc to read!	[reply] [d/l]