1 package Catalyst::Restarter;
8 use namespace::clean -except => 'meta';
18 isa => 'Catalyst::Watcher',
30 delete $p->{restart_sub};
32 # We could make this lazily, but this lets us check that we
33 # received valid arguments for the watcher up front.
34 $self->_watcher( Catalyst::Watcher->new( %{$p} ) );
40 $self->_fork_and_start;
42 return unless $self->_child;
44 $self->_restart_on_changes;
50 if ( my $pid = fork ) {
54 $self->restart_sub->();
58 sub _restart_on_changes {
61 my $watcher = $self->_watcher;
64 my @files = $watcher->find_changed_files
68 print STDERR "Saw changes to the following files:\n";
69 print STDERR " - $_->{file} ($_->{status})\n" for @files;
71 print STDERR "Attempting to restart the server\n\n";
75 $self->_fork_and_start;
77 return unless $self->_child;
84 return unless $self->_child;
86 return unless kill 0, $self->_child;
88 local $SIG{CHLD} = 'IGNORE';
89 unless ( kill 'INT', $self->_child ) {
90 # The kill 0 thing does not work on Windows, but the restarter
91 # seems to work fine on Windows with this hack.
92 return if $^O eq 'MSWin32';
93 die "Cannot send INT signal to ", $self->_child, ": $!";
103 __PACKAGE__->meta->make_immutable;
111 Catalyst::Restarter - Uses Catalyst::Watcher to check for changed files and restart the server
115 my $watcher = Catalyst::Watcher->new(
116 directory => '/path/to/MyApp',
117 regex => '\.yml$|\.yaml$|\.conf|\.pm$',
122 my @changed_files = $watcher->watch();
127 This class monitors a directory of files for changes made to any file
128 matching a regular expression. It correctly handles new files added to the
129 application as well as files that are deleted.
133 =head2 new ( directory => $path [, regex => $regex, delay => $delay ] )
135 Creates a new Watcher object.
137 =head2 find_changed_files
139 Returns a list of files that have been added, deleted, or changed
140 since the last time watch was called. Each element returned is a hash
141 reference with two keys. The C<file> key contains the filename, and
142 the C<status> key contains one of "modified", "added", or "deleted".
146 L<Catalyst>, L<Catalyst::Restarter>, <File::Modified>
150 Catalyst Contributors, see Catalyst.pm
154 This program is free software, you can redistribute it and/or modify
155 it under the same terms as Perl itself.