def test_relationship_unparsing(self):
relationship_set = parse_depends('foo, bar(>=1)|baz')
self.assertEqual(unicode(relationship_set), 'foo, bar (>= 1) | baz')
self.assertEqual(
compact(repr(relationship_set)),
"RelationshipSet(Relationship(name='foo'), AlternativeRelationship(VersionedRelationship(name='bar', operator='>=', version='1'), Relationship(name='baz')))"
)
def test_control_field_parsing(self):
deb822_package = Deb822([
'Package: python-py2deb',
'Depends: python-deb-pkg-tools, python-pip, python-pip-accel',
'Installed-Size: 42'
])
parsed_info = parse_control_fields(deb822_package)
self.assertEqual(
parsed_info, {
'Package':
'python-py2deb',
'Depends':
RelationshipSet(Relationship(name=u'python-deb-pkg-tools'),
Relationship(name=u'python-pip'),
Relationship(name=u'python-pip-accel')),
'Installed-Size':
42
})
# Test backwards compatibility with the old interface where `Depends'
# like fields were represented as a list of strings (shallow parsed).
parsed_info['Depends'] = [unicode(r) for r in parsed_info['Depends']]
self.assertEqual(unparse_control_fields(parsed_info), deb822_package)
# Test compatibility with fields like `Depends' containing a string.
parsed_info['Depends'] = deb822_package['Depends']
self.assertEqual(unparse_control_fields(parsed_info), deb822_package)
def test_control_field_parsing(self):
deb822_package = Deb822(['Package: python-py2deb',
'Depends: python-deb-pkg-tools, python-pip, python-pip-accel',
'Installed-Size: 42'])
parsed_info = parse_control_fields(deb822_package)
self.assertEqual(parsed_info,
{'Package': 'python-py2deb',
'Depends': RelationshipSet(
Relationship(name=u'python-deb-pkg-tools'),
Relationship(name=u'python-pip'),
Relationship(name=u'python-pip-accel')),
'Installed-Size': 42})
# Test backwards compatibility with the old interface where `Depends'
# like fields were represented as a list of strings (shallow parsed).
parsed_info['Depends'] = [unicode(r) for r in parsed_info['Depends']]
self.assertEqual(unparse_control_fields(parsed_info), deb822_package)
# Test compatibility with fields like `Depends' containing a string.
parsed_info['Depends'] = deb822_package['Depends']
self.assertEqual(unparse_control_fields(parsed_info), deb822_package)
def unparse_control_fields(input_fields):
"""
Convert a :py:class:`dict` returned by :py:func:`parse_control_fields()`
back into a :py:class:`debian.deb822.Deb822` object.
Note that fields with an empty value are omitted. This makes it possible to
delete fields from a control file with :py:func:`patch_control_file()` by
setting the value of a field to ``None`` in the overrides...
:param input_fields: A :py:class:`dict` object previously returned by
:py:func:`parse_control_fields()`.
:returns: A :py:class:`debian.deb822.Deb822` object.
"""
logger.debug("Unparsing %i control fields ..", len(input_fields))
output_fields = Deb822()
for name, parsed_value in input_fields.items():
name = normalize_control_field_name(name)
if name in DEPENDS_LIKE_FIELDS:
if isinstance(parsed_value, RelationshipSet):
# New interface (a RelationshipSet object).
unparsed_value = unicode(parsed_value)
elif not isinstance(parsed_value, basestring):
# Backwards compatibility with old interface (list of strings).
unparsed_value = ", ".join(parsed_value)
else:
# Compatibility with callers that set one of the Depends-like
# fields to a string value (which is fine).
unparsed_value = parsed_value
elif name == "Installed-Size":
unparsed_value = str(parsed_value)
else:
unparsed_value = parsed_value
if unparsed_value:
output_fields[name] = unparsed_value
logger.debug("Unparsed fields: %r", output_fields)
return output_fields
def unparse_control_fields(input_fields):
"""
Convert a :py:class:`dict` returned by :py:func:`parse_control_fields()`
back into a :py:class:`debian.deb822.Deb822` object.
Note that fields with an empty value are omitted. This makes it possible to
delete fields from a control file with :py:func:`patch_control_file()` by
setting the value of a field to ``None`` in the overrides...
:param input_fields: A :py:class:`dict` object previously returned by
:py:func:`parse_control_fields()`.
:returns: A :py:class:`debian.deb822.Deb822` object.
"""
logger.debug("Unparsing %i control fields ..", len(input_fields))
output_fields = Deb822()
for name, parsed_value in input_fields.items():
name = normalize_control_field_name(name)
if name in DEPENDS_LIKE_FIELDS:
if isinstance(parsed_value, RelationshipSet):
# New interface (a RelationshipSet object).
unparsed_value = unicode(parsed_value)
elif not isinstance(parsed_value, basestring):
# Backwards compatibility with old interface (list of strings).
unparsed_value = ', '.join(parsed_value)
else:
# Compatibility with callers that set one of the Depends-like
# fields to a string value (which is fine).
unparsed_value = parsed_value
elif name == 'Installed-Size':
unparsed_value = str(parsed_value)
else:
unparsed_value = parsed_value
if unparsed_value:
output_fields[name] = unparsed_value
logger.debug("Unparsed fields: %r", output_fields)
return output_fields
def test_relationship_unparsing(self):
relationship_set = parse_depends('foo, bar(>=1)|baz')
self.assertEqual(unicode(relationship_set), 'foo, bar (>= 1) | baz')
self.assertEqual(compact(repr(relationship_set)), "RelationshipSet(Relationship(name='foo'), AlternativeRelationship(VersionedRelationship(name='bar', operator='>=', version='1'), Relationship(name='baz')))")