NAME

Apache::StatINC - Reload %INC files when updated on disk

SYNOPSIS

#httpd.conf or some such
#can be any Perl*Handler
PerlInitHandler Apache::StatINC

DESCRIPTION

When Perl pulls a file via require, it stores the filename in the global hash %INC. The next time Perl tries to require the same file, it sees the file in %INC and does not reload from disk. This module's handler iterates over %INC and reloads the file if it has changed on disk.

Note that StatINC operates on the current context of @INC. Which means, when called as a Perl*Handler it will not see @INC paths added or removed by Apache::Registry scripts, as the value of @INC is saved on server startup and restored to that value after each request. In other words, if you want StatINC to work with modules that live in custom @INC paths, you should modify @INC when the server is started. Besides, 'use lib' in startup scripts, you can also set the PERL5LIB variable in the httpd's environment to include any non-standard 'lib' directories that you choose. For example, you might use a script called 'start_httpd' to start apache, and include a line like this:

PERL5LIB=/usr/local/foo/myperllibs; export PERL5LIB

OPTIONS

UndefOnReload

Normally, StatINC will turn of warnings to avoid "Subroutine redefined" warnings when it reloads a file. However, this does not disable the Perl mandatory warning when re-defining constant subroutines (see perldoc perlsub). With this option On, StatINC will invoke the Apache::Symbol undef_functions method to avoid these mandatory warnings:

PerlSetVar UndefOnReload On

SEE ALSO

mod_perl(3)

AUTHOR

Doug MacEachern