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

Class Fetcher

object --+
         |
        Fetcher

Downloads and stores various things.

Instance Methods

__init__(self, config)
x.__init__(...) initializes x; see help(type(x)) for signature

source code

handler(self)

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

get_packagekit_feed(self, feed_url)
Send a query to PackageKit (if available) for information about this package.

source code

download_and_import_feed(self, feed_url, iface_cache=None, force=False)
Download the feed, download any required keys, confirm trust if needed and import.

source code

fetch_key_info(self, fingerprint)

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__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Instance Variables
config.Config	config used to get handler, iface_cache and stores
{str: KeyInfoFetcher}	key_info caches information about GPG keys

Properties
Inherited from `object`: `__class__`

Method Details

init(self, config)
(Constructor)

source code

x.__init__(...) initializes x; see help(type(x)) for signature

Overrides: object.__init__: (inherited documentation)

handler(self)

source code

Decorators:

@property

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

get_packagekit_feed(self, feed_url)

source code

Send a query to PackageKit (if available) for information about this package. On success, the result is added to iface_cache.

Decorators:

@tasks.async

download_and_import_feed(self, feed_url, iface_cache=None, 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 - (deprecated)
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 do nothing.

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

download_impls(self, implementations, stores)

source code

Download the given implementations, choosing a suitable retrieval method for each. If any of the retrieval methods are DistributionSources and need confirmation, handler.confirm is called to check that the installation should proceed.

Class Fetcher

__init__(self, config) (Constructor)

handler(self)

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

get_packagekit_feed(self, feed_url)

download_and_import_feed(self, feed_url, iface_cache=None, 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)

download_impls(self, implementations, stores)

init(self, config)
(Constructor)