Current File : //lib/python3/dist-packages/softwareproperties/sourceutils.py
from aptsources.sourceslist import (SourceEntry, Deb822SourceEntry)
def copy_source_entry(orig):
""" Return a shallow copy of the source entry. """
if isinstance(orig, Deb822SourceEntry):
return Deb822SourceEntry(str(orig), file=orig.file)
return SourceEntry(str(orig), file=orig.file)
def replace_source_entry(orig, **kwargs):
"""Return a copy of the given source entry with replaced field(s)."""
entry = copy_source_entry(orig)
for (k, v) in kwargs.items():
setattr(entry, k, v)
return entry
def get_source_entry_pocket(source_entry):
"""
Return the pocket, or if unset return 'release'.
This always returns the pocket in lowercase.
"""
parts = source_entry.dist.partition('-')
return (parts[2] or 'release').lower()
def get_source_entry_suite(source_entry):
"""
Return the suite, without pocket.
This always returns the suite in lowercase.
"""
return source_entry.dist.partition('-')[0]
def get_source_entry_from_list(entries, entry):
"""
Return the source entry from entries that matches entry, if found.
Otherwise return None.
This function uses a modified equality check, i.e. it considers components
as a set rather than a list so that different ordering does not affect the
comparison.
"""
target = replace_source_entry(entry, comps=set(entry.comps))
for e in entries:
if replace_source_entry(e, comps=set(e.comps)) == target:
return e
return None
def deb822_source_entry_contains(a, b):
"""
Return True if the source defined by b is already satisfied
by the source defined by a.
For example, if source a is:
Types: deb
URIs: http://archive.ubuntu.com/ubuntu
Suites: jammy
Components: main universe
and source b is:
Types: deb
URIs: http://archive.ubuntu.com/ubuntu
Suites: jammy
Components: universe
Then source a contains source b.
But if source b was:
Types: deb-src
URIs: http://archive.ubuntu.com/ubuntu
Suites: jammy
Components: universe
Then a does not contain b because it does not include deb-src.
"""
if a.disabled != b.disabled:
return False
for attr in ['types', 'comps', 'suites', 'uris']:
if set(getattr(b, attr)) - set(getattr(a, attr)):
return False
return True
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