- CREATECONFIGOPTIONS'S API METHODS
- COPYRIGHT AND LICENSE
App::Fetchware::CreateConfigOptions - Used by fetchware extensions to create their configuration options.
use App::Fetchware::ExportAPI KEEP => [qw(start end)], OVERRIDE => [qw(lookup download verify unarchive build install uninstall)];
App::Fetchware::ExportAPI is a utility helper class for fetchware extensions. It makes it easy to ensure that your fetchware extension implements or imports all of App::Fetchware's required API subroutines.
See section "CREATING A FETCHWARE EXTENSION" in App::Fetchware in App::Fetchware's documentation for more information on how to create your very own fetchware extension.
App::Fetchware::CreateConfigOptions (CreateConfigOptions) has only one user-servicable part--it's import() method. It works just like Exporter's import() method except it takes arguments differently, and checks it's arguments more thuroughly.
# You don't actually call import() unless you're doing something weird. # Instead, use calls import for you. use App::Fetchware::CreateConfigOptions ONE => [qw( page_name html_page_url user_agent html_treebuilder_callback download_links_callback )], BOOLEAN => [qw( keep_destination_directory )], IMPORT => [qw( temp_dir )], ;
Creates configuration options of the same types App::Fetchware uses. These are:
- 1. ONE - Stores one and only ever one value. If the configuration option is used more than once, an exception is thrown.
- 2. ONEARRREF - Stores one or more values. But only stores a list when provided a list when you call it such as
install_commands './configure', 'make', 'make install'would create a configuration option with three values. However, if a ONEARRREF is called more than once, and exception is also thrown.
- 3. MANY - Stores many values one at a time just like ONEARRREF, but can also be called any number of times, and values are appended to any already existing ones.
- 4. BOOLEAN - Stores true or false values such as
In addition to App::Fetchware's types, import() features an additional type:
- 5. IMPORT - the
IMPORTthis hash key does not create new configuration
options, but instead imports already defined ones from App::Fetchware allowing you to reuse popular configuration options like
no_installin your fetchware extension.
Just use any of
BOOLEAN as faux hash keys being sure to wrap their arguments in array reference brackets
import() creates subroutines that have prototypes, but in order for perl to honor those prototypes perl must know about them at compile-time; therefore, that is why import() must be called inside a
BEGINblock. The best and most obvious way of doing that is use
use App::Fetchware::CreateConfigOptions [options];.
As with the rest of App::Fetchware, App::Fetchware::ExportAPI does not return any error codes; instead, all errors are die()'d if it's Test::Fetchware's error, or croak()'d if its the caller's fault.
David Yingling <firstname.lastname@example.org>
This software is copyright (c) 2016 by David Yingling.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.