Package zeroinstall :: Package injector :: Module fetch :: Class Fetcher

Class Fetcher

object --+
         |
        Fetcher

Downloads and stores various things.

Instance Methods

__init__(self, handler)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

source code

cook(self, required_digest, recipe, stores, force=False, impl_hint=None)
Follow a Recipe.

source code

get_feed_mirror(self, url)
Return the URL of a mirror for this feed.

source code

download_and_import_feed(self, feed_url, iface_cache, force=False)
Download the feed, download any required keys, confirm trust if needed and import.

source code

tasks.Blocker

download_impl(self, impl, retrieval_method, stores, force=False)
Download an implementation.

source code

download_archive(self, download_source, force=False, impl_hint=None)
Fetch an archive.

source code

tasks.Task

download_icon(self, interface, force=False)
Download an icon for this interface and add it to the icon cache.

source code

download_impls(self, implementations, stores)
Download the given implementations, choosing a suitable retrieval method for each.

source code

model.RetrievalMethod

get_best_source(self, impl)
Return the best download source for this implementation.

source code

Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __str__

Instance Variables
str	feed_mirror the base URL of a mirror site for keys and feeds
handler.Handler	handler handler to use for user-interaction

Properties
Inherited from `object`: `__class__`

Method Details

init(self, handler)
(Constructor)

source code

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

Overrides: object.__init__: (inherited documentation)

cook(self, required_digest, recipe, stores, force=False, impl_hint=None)

source code

Follow a Recipe.

Parameters:

impl_hint - the Implementation this is for (if any) as a hint for the GUI

Decorators:

@tasks.async

See Also: download_impl uses this method when appropriate

download_and_import_feed(self, feed_url, iface_cache, force=False)

source code

Download the feed, download any required keys, confirm trust if needed and import.

Parameters:

feed_url (str) - the feed to be downloaded
iface_cache (iface_cache.IfaceCache) - cache in which to store the feed
force - whether to abort and restart an existing download

download_impl(self, impl, retrieval_method, stores, force=False)

source code

Download an implementation.

Parameters:

impl (model.ZeroInstallImplementation) - the selected implementation
retrieval_method (model.RetrievalMethod) - a way of getting the implementation (e.g. an Archive or a Recipe)
stores (zerostore.Stores) - where to store the downloaded implementation
force - whether to abort and restart an existing download

Returns: tasks.Blocker

download_archive(self, download_source, force=False, impl_hint=None)

source code

Fetch an archive. You should normally call download_impl instead, since it handles other kinds of retrieval method too.

download_icon(self, interface, force=False)

source code

Download an icon for this interface and add it to the icon cache. If the interface has no icon or we are offline, do nothing.

Returns: tasks.Task: the task doing the import, or None

Class Fetcher

__init__(self, handler) (Constructor)

cook(self, required_digest, recipe, stores, force=False, impl_hint=None)

download_and_import_feed(self, feed_url, iface_cache, force=False)

download_impl(self, impl, retrieval_method, stores, force=False)

download_archive(self, download_source, force=False, impl_hint=None)

download_icon(self, interface, force=False)

init(self, handler)
(Constructor)