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use strict; |
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package Module::Reload; |
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use vars qw($VERSION $Debug %Stat); |
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$VERSION = "1.07"; |
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|
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sub check { |
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my $c=0; |
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while (my($key,$file) = each %INC) { |
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next if $file eq $INC{"Module/Reload.pm"}; |
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local $^W = 0; |
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my $mtime = (stat $file)[9]; |
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$Stat{$file} = $^T |
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unless defined $Stat{$file}; |
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warn "Module::Reload: stat '$file' got $mtime >? $Stat{$file}\n" |
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if $Debug >= 3; |
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if ($mtime > $Stat{$file}) { |
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delete $INC{$key}; |
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eval { |
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local $SIG{__WARN__} = \&warn; |
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require $key; |
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}; |
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if ($@) { |
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warn "Module::Reload: error during reload of '$key': $@\n" |
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} |
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elsif ($Debug) { |
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warn "Module::Reload: process $$ reloaded '$key'\n" |
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if $Debug == 1; |
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warn("Module::Reload: process $$ reloaded '$key' (\@INC=". |
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join(', ',@INC).")\n") |
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if $Debug >= 2; |
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} |
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++$c; |
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} |
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$Stat{$file} = $mtime; |
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} |
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$c; |
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} |
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|
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1; |
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|
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__END__ |
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|
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=head1 NAME |
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|
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Module::Reload - Reload %INC files when updated on disk |
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|
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=head1 SYNOPSIS |
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|
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Module::Reload->check; |
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|
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=head1 DESCRIPTION |
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|
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When Perl pulls a file via C<require>, it stores the filename in the |
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global hash C<%INC>. The next time Perl tries to C<require> the same |
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file, it sees the file in C<%INC> and does not reload from disk. This |
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module's handler iterates over C<%INC> and reloads the file if it has |
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changed on disk. |
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|
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Set $Module::Reload::Debug to enable debugging output. |
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|
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=head1 BUGS |
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|
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A growing number of pragmas (C<base>, C<fields>, etc.) assume that |
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they are loaded once only. When you reload the same file again, they |
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tend to become confused and break. If you feel motivated to submit |
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patches for these problems, I would encourage that. |
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|
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=head1 SEE ALSO |
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|
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Event |
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|
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=head1 AUTHOR |
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|
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Copyright � 1997-1998 Doug MacEachern & Joshua Pritikin. All rights reserved. |
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|
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This package is free software and is provided "as is" without express |
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or implied warranty. It may be used, redistributed and/or modified |
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under the terms of the Perl Artistic License (see |
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http://www.perl.com/perl/misc/Artistic.html) |
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|
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