This is implements an in-memory copy of a vartree instance that
provides all the interfaces required for use by the depgraph. The vardb
is locked during the constructor call just long enough to read a copy of
the installed package information. This allows the depgraph to do it's
dependency calculations without holding a lock on the vardb. It also
allows things like vardb global updates to be done in memory so that the
user doesn't necessarily need write access to the vardb in cases where
global updates are necessary (updates are performed when necessary if
there is not a matching ebuild in the tree). Instances of this class are
not populated until the sync() method is called.
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__init__(self,
root_config,
pkg_cache=None,
pkg_root_config=None,
dynamic_deps=True,
ignore_built_slot_operator_deps=False)
x.__init__(...) initializes x; see help(type(x)) for signature |
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_match_wrapper(self,
cpv,
use_cache=1)
Make sure the metadata in Package instances gets updated for any cpv
that is returned from a match() call, since the metadata can be
accessed directly from the Package instance instead of via aux_get(). |
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| _aux_get_wrapper(self,
cpv,
wants,
myrepo=None) |
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| _apply_dynamic_deps(self,
pkg,
live_metadata) |
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cpv_discard(self,
pkg)
Discard a package from the fake vardb if it exists. |
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sync(self,
acquire_lock=1)
Call this method to synchronize state with the real vardb after one
or more packages may have been installed or uninstalled. |
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_pkg(self,
cpv)
The RootConfig instance that will become the Package.root_config
attribute can be overridden by the FakeVartree pkg_root_config
constructory argument, since we want to be consistent with the
depgraph._pkg() method which uses a specially optimized RootConfig
that has a FakeVartree instead of a real vartree. |
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Inherited from portage.dbapi.vartree.vartree:
dep_bestmatch,
dep_match,
exists_specific,
get_all_provides,
get_provide,
getallcpv,
getallnodes,
getebuildpath,
getpath,
getslot,
inject,
populate,
zap
Inherited from object:
__delattr__,
__format__,
__getattribute__,
__hash__,
__new__,
__reduce__,
__reduce_ex__,
__repr__,
__setattr__,
__sizeof__,
__str__,
__subclasshook__
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