_fetch will fetch files based on the information in a module
object. You always need a module object. If you want a fake module
object for a one-off fetch, look at CPANPLUS::Module::Fake.
fetchdir is the place to save the file to. Usually this
information comes from your configuration, but you can override it
expressly if needed.
fetch_from lets you specify an URI to get this file from. If you
do not specify one, your list of configured hosts will be probed to
download the file from.
force forces a new download, even if the file already exists.
verbose simply indicates whether or not to print extra messages.
prefer_bin indicates whether you prefer the use of commandline
programs over perl modules. Defaults to your corresponding config
ttl (in seconds) indicates how long a cached copy is valid for. If
the fetch time of the local copy is within the ttl, the cached copy is
returned. Otherwise, the file is refetched.
_fetch figures out, based on the host list, what scheme to use and
from there, delegates to File::Fetch do the actual fetching.
Returns the path of the output file on success, false on failure.
Note that you can set a blacklist on certain methods in the config.
Simply add the identifying name of the method (ie, lwp) to:
$conf->_set_fetch( blacklist => [lwp] );
And the LWP function will be skipped by File::Fetch.
_add_fail_host( host => CW$host_hashref )
Mark a particular host as bad. This makes CPANPLUS::Internals::Fetch
skip it in fetches until this cache is flushed.
_host_ok( host => CW$host_hashref )
Query the cache to see if this host is ok, or if it has been flagged
Returns true if the host is ok, false otherwise.