Catalyst::Upgrading - Instructions for upgrading to the latest Catalyst
-=head2 Upgrading to Catalyst 5.90
+=head1 Upgrading to Catalyst 5.90
The major change is that L<Plack> now replaces most of the subclasses of
L<Catalyst::Engine>. If you are using one of the standard subclasses of
Advice for specific subclasses of L<Catalyst::Engine> follows:
-=head3 Upgrading the FastCGI Engine
+=head2 Upgrading the FastCGI Engine
No upgrade needed if your myapp_fastcgi.pl script is already upgraded
enough to use L<Catalyst::Script::FastCGI>.
-=head3 Upgrading the mod_perl / Apache Engines
+=head2 Upgrading the mod_perl / Apache Engines
The engines that are build upon the various iterations of mod_perl,
L<Catalyst::Engine::Apache::MP13> and
L<Catalyst::Engine::Apache2::MP19>, is however no longer supported, as Plack
does not support mod_perl version 1.99??? FIXME - is this true?
-=head3 Upgrading the HTTP Engine
+=head2 Upgrading the HTTP Engine
The default development server that comes with the L<Catalyst> distribution
should continue to work as expected with no changes as long as your C<myapp_server>
script is upgraded to use L<Catalyst::Script::HTTP>.
-=head3 Upgrading the CGI Engine
+=head2 Upgrading the CGI Engine
-If you were using L<Catalyst::Engine::CGI> you should now use...
+If you were using L<Catalyst::Engine::CGI> there is no upgrade needed if your
+myapp_cgi.pl script is already upgraded enough to use L<Catalyst::Script::CGI>.
-No upgrade needed if your myapp_cgi.pl script is already upgraded
-enough to use L<Catalyst::Script::CGI>.
-
-=head3 Upgrading the Preforking Engine
+=head2 Upgrading the Preforking Engine
If you were using L<Catalyst::Engine::HTTP::Prefork> then L<Starman>
-is automatically loaded.
+is automatically loaded.
+
+XXX FIXME - note how to run Starman with different options.
-=head3 Upgrading the PSGI Engine
+=head2 Upgrading the PSGI Engine
If you were using L<Catalyst::Engine::PSGI> this new release supercedes this
-engine in supporting L<Plack>. You should remove the.. FIXME
+engine in supporting L<Plack>. By default the Engine is now always L<Plack>.
+As a result, you can stop depending on L<Catalyst::Engine::PSGI> in your
+C<Makefile.PL>.
+
+Applications that were using L<Catalyst::Engine::PSGI>
+previously should entirely continue to work in this release with no changes.
+
+However, if you have an C<app.psgi> script, then you no longer
+need to specify the PSGI engine. Instead, the L<Catalyst> application class
+now has a new method C<psgi_app> which returns a L<PSGI> compatible coderef
+which you can wrap in middleware of your choice.
+
+Catalyst will use the .psgi for your application if it is located in the C<home>
+directory of the application
+
+For example, if you were using L<Catalyst::Engine::PSGI> in the past, you will
+have written (or generated) a C<script/myapp.psgi> file similar to this one:
+
+ use Plack::Builder;
+ use MyCatalytApp;
+
+ MyCatalystApp->setup_engine('PSGI');
+
+ builder {
+ enable ... # enable your desired middleware
+ sub { MyCatalystApp->run(@_) };
+ };
+
+Instead, you now say:
+
+ use Plack::Builder;
+ use MyCatalystApp;
+
+ builder {
+ enable ... #enable your desired middleware
+ MyCatalystApp->psgi_app;
+ };
+
+And also rename C<< script/myapp.psgi >> to C<< myapp.psgi >>.
+
+XXX - FIXME - t/psgi_file_testapp_engine_psgi_compat.t
+
+If you rename your .psgi file without these modifications, then any tests run via
+L<Catalyst::Test> will not be compatible with the new release, and will result in
+the development server starting, rather than the expected test running.
+
+=head2 Engines which are known broken
+
+The following engines B<DO NOT> work as of Catalyst version 5.90. The core
+team is extremely happy to work with the developers and/or users of these
+engines to help them port to the new Plack/Engine system, however applications
+which are currently using these engines B<WILL NOT> run without modification
+to the engine code.
+
+=over
+
+=item Catalyst::Engine::Wx
+
+=item Catalyst::Engine::Zeus
+
+=item Catalyst::Engine::JobQueue::POE
+
+=item Catalyst::Engine::XMPP2
+
+=item Catalyst::Engine::SCGI
+
+=back
=head2 Engines with unknown status
The following engines have untested or unknown compatibility. Reports are
highly welcomed:
- Catalyst::Engine::Embeddable
- Catalyst::Engine::XMPP2
- Catalyst::Engine::SCGI
- Catalyst::Engine::Mojo
- Catalyst::Engine::Zeus
- Catalyst::Engine::JobQueue::POE
- Catalyst::Engine::Wx
- Catalyst::Engine::Stomp
- Catalyst::Engine::Server (Marked as Deprecated)
- Catalyst::Engine::HTTP::POE (Marked as Deprecated)
+=over
+
+=item Catalyst::Engine::Mojo
+
+=item Catalyst::Engine::Server (Marked as Deprecated)
+
+=item Catalyst::Engine::HTTP::POE (Marked as Deprecated)
+
+=back
=head2 Using middleware
projects / catagits/Catalyst-Runtime.git / blobdiff