I am the programmer for a decent size company, we have over 50k people that use our system regularly. Because I do not want to shut the website off regularly to make changes, I made a 'upgrade' system that will use the 'mv' command to move the file and over-write the current file. If there are errors it ends up crashing the system so it is not as efficient as I would like it to be. My question is there a way that when I use my upgrade script which sees the files that are there available for upgrade, that can require those in a way that will not error out if there are errors, but will simply report any errors the file contains?

For example it detects the presence of /home/path/to/upgrade/files/my_code.conf
which could contain just perl code in this format: 
#File Name: my_code.conf
## Subroutines in this file:
### sub1
### sub2
### sub3

sub sub1 {

# Some code
return 1;
}

sub sub2 {

# Some code
return 1;
}

sub sub3 {

# Some code
return 1;
}

1;

[download]
That would be the file. So how can Perl just run a way to call a 'require' on that file to pull it in, but only for checking for errors and if it contains any just give me the results instead of actually doing a require and then getting a software error?

Sorry if that is hard to understand I can clarify it if you need me to.

Thanks,
Rich

In reply to question about checking a script for errors from within a perl program by Anonymous Monk

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