NAME
Cave::Wrapper - A Wrapper to the Paludis 'cave' Client.
VERSION
version 0.01100100
DESCRIPTION
"cave" is a package management client for the Paludis
package manager available for use with both
the Exherbo Linux and Gentoo Linux
Distributions.
This module is designed as a syntactic sugar wrapper for that client to
minimize development time and clarify code.
my $cave = Cave::Wrapper->new();
my @ids = $cave->print_ids(qw( --matches dev-lang/perl ));
METHODS
Methods are generated entirely at run-time by introspecting the output
from "cave print-commands --all" and then generating the appropriate
methods. This is mostly because we don't want to have to cut a new
release every time paludis produce a new release *just* to avoid
breaking code.
CAVEATS
Naming Collisions
There exists 1 command we cannot perform a native mapping for, and its
due to a perlism, and that is "import".
For now, this is named "cave_import" instead.
Hyphenated Commands
Hyphenated commands can't be used as method names in Perl, so we've
translated the hyphens to underscores in the method names.
i.e.: if you wanted "print-ids" you now want "print_ids"
Slightly Under-powered
This is a first-pass "Just get it working" implementation at this time,
and is reasonably useful for the print_ family of commands the cave
client provides. However, you probably do not wish to use it for more
complex things like calling "cave resolve" as it might cause you untold
sorrows while it silently buffers into a growing array and then spews
its contents when its finished.
TODO
One day we'd like to have a sweeter syntax, like
$cave->print_ids({ matches => 'dev-lang/perl' })
or
$cave->print_ids({ matches => [ 'dev-lang/perl' , 'dev-lang/python' ]});
However, there are a few problems and questions to be answered, which
are not a problem with the existing syntax but would be a problem with a
possible alternative syntax.
* Toggle Switches
There are a lot of toggle switches that don't take a parameter, and
while we could just do
$cave->print_commands({ all => 1 });
That means we have to get rid of the '1' before we pass the command
to "cave", and that is going to be difficult to do without needing
tight coupling. Not to mention how to handle "all => 2" and "all =>
1".
* Fixed Order operations.
Some "cave" functions require operators to be ordered, so if you
needed to do this
cave foobar --matching foo --not --matching bar
having a structure
$cave->foobar({ matching => [ 'foo', 'bar' ]} , '--not' )
would obviously not work.
$cave->foobar([ matching => 'foo', not => matching => 'bar' ])
or anything not using a hash is going to be equally confusing,
especially as we can now no longer tell what is a key and what is a
value, so adding '--' to the front of them becomes impossible.
AUTHOR
Kent Fredric
COPYRIGHT AND LICENSE
This software is copyright (c) 2014 by Kent Fredric .
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.