def test_relationship_evaluation(self):
# Relationships without versions.
relationship_set = parse_depends('python')
self.assertTrue(relationship_set.matches('python'))
self.assertFalse(relationship_set.matches('python2.7'))
self.assertEqual(list(relationship_set.names), ['python'])
# Alternatives (OR) without versions.
relationship_set = parse_depends('python2.6 | python2.7')
self.assertFalse(relationship_set.matches('python2.5'))
self.assertTrue(relationship_set.matches('python2.6'))
self.assertTrue(relationship_set.matches('python2.7'))
self.assertFalse(relationship_set.matches('python3.0'))
self.assertEqual(sorted(relationship_set.names), ['python2.6', 'python2.7'])
# Combinations (AND) with versions.
relationship_set = parse_depends('python (>= 2.6), python (<< 3) | python (>= 3.4)')
self.assertFalse(relationship_set.matches('python', '2.5'))
self.assertTrue(relationship_set.matches('python', '2.6'))
self.assertTrue(relationship_set.matches('python', '2.7'))
self.assertFalse(relationship_set.matches('python', '3.0'))
self.assertTrue(relationship_set.matches('python', '3.4'))
self.assertEqual(list(relationship_set.names), ['python'])
# Testing for matches without providing a version is valid (should not
# raise an error) but will never match a relationship with a version.
relationship_set = parse_depends('python (>= 2.6), python (<< 3)')
self.assertTrue(relationship_set.matches('python', '2.7'))
self.assertFalse(relationship_set.matches('python'))
self.assertEqual(list(relationship_set.names), ['python'])
# Distinguishing between packages whose name was matched but whose
# version didn't match vs packages whose name wasn't matched.
relationship_set = parse_depends('python (>= 2.6), python (<< 3) | python (>= 3.4)')
self.assertEqual(relationship_set.matches('python', '2.7'), True) # name and version match
self.assertEqual(relationship_set.matches('python', '2.5'), False) # name matched, version didn't
self.assertEqual(relationship_set.matches('python2.6'), None) # name didn't match
self.assertEqual(relationship_set.matches('python', '3.0'), False) # name in alternative matched, version didn't
self.assertEqual(list(relationship_set.names), ['python'])
def test_relationship_parsing(self):
# Happy path (no parsing errors).
relationship_set = parse_depends('foo, bar (>= 1) | baz')
self.assertEqual(relationship_set.relationships[0].name, 'foo')
self.assertEqual(relationship_set.relationships[1].relationships[0].name, 'bar')
self.assertEqual(relationship_set.relationships[1].relationships[0].operator, '>=')
self.assertEqual(relationship_set.relationships[1].relationships[0].version, '1')
self.assertEqual(relationship_set.relationships[1].relationships[1].name, 'baz')
self.assertEqual(parse_depends('foo (=1.0)'), RelationshipSet(VersionedRelationship(name='foo', operator='=', version='1.0')))
# Unhappy path (parsing errors).
self.assertRaises(ValueError, parse_depends, 'foo (bar) (baz)')
self.assertRaises(ValueError, parse_depends, 'foo (bar baz qux)')
def test_architecture_restriction_parsing(self):
"""Test the parsing of architecture restrictions."""
relationship_set = parse_depends('qux [i386 amd64]')
assert relationship_set.relationships[0].name == 'qux'
assert len(relationship_set.relationships[0].architectures) == 2
assert 'i386' in relationship_set.relationships[0].architectures
assert 'amd64' in relationship_set.relationships[0].architectures
def test_custom_pretty_printer(self):
"""Test pretty printing of deb822 objects and parsed relationships."""
printer = CustomPrettyPrinter()
# Test pretty printing of debian.deb822.Deb822 objects.
deb822_object = deb822_from_string('''
Package: pretty-printed-control-fields
Version: 1.0
Architecture: all
''')
formatted_object = printer.pformat(deb822_object)
assert normalize_repr_output(
formatted_object) == normalize_repr_output('''
{'Architecture': u'all',
'Package': u'pretty-printed-control-fields',
'Version': u'1.0'}
''')
# Test pretty printing of RelationshipSet objects.
relationship_set = parse_depends(
'python-deb-pkg-tools, python-pip, python-pip-accel')
formatted_object = printer.pformat(relationship_set)
assert normalize_repr_output(
formatted_object) == normalize_repr_output('''
RelationshipSet(Relationship(name='python-deb-pkg-tools', architectures=()),
Relationship(name='python-pip', architectures=()),
Relationship(name='python-pip-accel', architectures=()))
''')
def test_architecture_restriction_parsing(self):
"""Test the parsing of architecture restrictions."""
relationship_set = parse_depends('qux [i386 amd64]')
assert relationship_set.relationships[0].name == 'qux'
assert len(relationship_set.relationships[0].architectures) == 2
assert 'i386' in relationship_set.relationships[0].architectures
assert 'amd64' in relationship_set.relationships[0].architectures
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_custom_pretty_printer(self):
printer = CustomPrettyPrinter()
# Test pretty printing of debian.deb822.Deb822 objects.
self.assertEqual(
remove_unicode_prefixes(
printer.pformat(
deb822_from_string('''
Package: pretty-printed-control-fields
Version: 1.0
Architecture: all
'''))),
remove_unicode_prefixes(
dedent('''
{'Architecture': u'all',
'Package': u'pretty-printed-control-fields',
'Version': u'1.0'}
''')))
# Test pretty printing of RelationshipSet objects.
depends_line = 'python-deb-pkg-tools, python-pip, python-pip-accel'
self.assertEqual(
printer.pformat(parse_depends(depends_line)),
dedent('''
RelationshipSet(Relationship(name='python-deb-pkg-tools'),
Relationship(name='python-pip'),
Relationship(name='python-pip-accel'))
'''))
def test_relationship_parsing(self):
"""Test the parsing of Debian package relationship declarations."""
# Happy path (no parsing errors).
relationship_set = parse_depends('foo, bar (>= 1) | baz')
assert relationship_set.relationships[0].name == 'foo'
assert relationship_set.relationships[1].relationships[0].name == 'bar'
assert relationship_set.relationships[1].relationships[0].operator == '>='
assert relationship_set.relationships[1].relationships[0].version == '1'
assert relationship_set.relationships[1].relationships[1].name == 'baz'
assert parse_depends('foo (=1.0)') == RelationshipSet(VersionedRelationship(
name='foo',
operator='=',
version='1.0',
))
# Unhappy path (parsing errors).
self.assertRaises(ValueError, parse_depends, 'foo (bar) (baz)')
self.assertRaises(ValueError, parse_depends, 'foo (bar baz qux)')
def test_relationship_parsing(self):
"""Test the parsing of Debian package relationship declarations."""
# Happy path (no parsing errors).
relationship_set = parse_depends('foo, bar (>= 1) | baz')
assert relationship_set.relationships[0].name == 'foo'
assert relationship_set.relationships[1].relationships[0].name == 'bar'
assert relationship_set.relationships[1].relationships[0].operator == '>='
assert relationship_set.relationships[1].relationships[0].version == '1'
assert relationship_set.relationships[1].relationships[1].name == 'baz'
assert parse_depends('foo (=1.0)') == RelationshipSet(VersionedRelationship(
name='foo',
operator='=',
version='1.0',
))
# Unhappy path (parsing errors).
self.assertRaises(ValueError, parse_depends, 'foo (bar) (baz)')
self.assertRaises(ValueError, parse_depends, 'foo (bar baz qux)')
def test_relationship_evaluation(self):
"""Test the evaluation of package relationships."""
# Relationships without versions.
relationship_set = parse_depends('python')
assert relationship_set.matches('python')
assert not relationship_set.matches('python2.7')
assert list(relationship_set.names) == ['python']
# Alternatives (OR) without versions.
relationship_set = parse_depends('python2.6 | python2.7')
assert not relationship_set.matches('python2.5')
assert relationship_set.matches('python2.6')
assert relationship_set.matches('python2.7')
assert not relationship_set.matches('python3.0')
assert sorted(relationship_set.names) == ['python2.6', 'python2.7']
# Combinations (AND) with versions.
relationship_set = parse_depends(
'python (>= 2.6), python (<< 3) | python (>= 3.4)')
assert not relationship_set.matches('python', '2.5')
assert relationship_set.matches('python', '2.6')
assert relationship_set.matches('python', '2.7')
assert not relationship_set.matches('python', '3.0')
assert relationship_set.matches('python', '3.4')
assert list(relationship_set.names) == ['python']
# Testing for matches without providing a version is valid (should not
# raise an error) but will never match a relationship with a version.
relationship_set = parse_depends('python (>= 2.6), python (<< 3)')
assert relationship_set.matches('python', '2.7')
assert not relationship_set.matches('python')
assert list(relationship_set.names) == ['python']
# Distinguishing between packages whose name was matched but whose
# version didn't match vs packages whose name wasn't matched.
relationship_set = parse_depends(
'python (>= 2.6), python (<< 3) | python (>= 3.4)')
assert relationship_set.matches(
'python', '2.7') is True # name and version match
assert relationship_set.matches(
'python', '2.5') is False # name matched, version didn't
assert relationship_set.matches(
'python2.6') is None # name didn't match
assert relationship_set.matches(
'python',
'3.0') is False # name in alternative matched, version didn't
assert list(relationship_set.names) == ['python']
def test_relationship_evaluation(self):
# Relationships without versions.
relationship_set = parse_depends('python')
self.assertTrue(relationship_set.matches('python'))
self.assertFalse(relationship_set.matches('python2.7'))
self.assertEqual(list(relationship_set.names), ['python'])
# Alternatives (OR) without versions.
relationship_set = parse_depends('python2.6 | python2.7')
self.assertFalse(relationship_set.matches('python2.5'))
self.assertTrue(relationship_set.matches('python2.6'))
self.assertTrue(relationship_set.matches('python2.7'))
self.assertFalse(relationship_set.matches('python3.0'))
self.assertEqual(sorted(relationship_set.names),
['python2.6', 'python2.7'])
# Combinations (AND) with versions.
relationship_set = parse_depends(
'python (>= 2.6), python (<< 3) | python (>= 3.4)')
self.assertFalse(relationship_set.matches('python', '2.5'))
self.assertTrue(relationship_set.matches('python', '2.6'))
self.assertTrue(relationship_set.matches('python', '2.7'))
self.assertFalse(relationship_set.matches('python', '3.0'))
self.assertTrue(relationship_set.matches('python', '3.4'))
self.assertEqual(list(relationship_set.names), ['python'])
# Testing for matches without providing a version is valid (should not
# raise an error) but will never match a relationship with a version.
relationship_set = parse_depends('python (>= 2.6), python (<< 3)')
self.assertTrue(relationship_set.matches('python', '2.7'))
self.assertFalse(relationship_set.matches('python'))
self.assertEqual(list(relationship_set.names), ['python'])
# Distinguishing between packages whose name was matched but whose
# version didn't match vs packages whose name wasn't matched.
relationship_set = parse_depends(
'python (>= 2.6), python (<< 3) | python (>= 3.4)')
self.assertEqual(relationship_set.matches('python', '2.7'),
True) # name and version match
self.assertEqual(relationship_set.matches('python', '2.5'),
False) # name matched, version didn't
self.assertEqual(relationship_set.matches('python2.6'),
None) # name didn't match
self.assertEqual(relationship_set.matches('python', '3.0'),
False) # name in alternative matched, version didn't
self.assertEqual(list(relationship_set.names), ['python'])
def test_relationship_parsing(self):
# Happy path (no parsing errors).
relationship_set = parse_depends('foo, bar (>= 1) | baz')
self.assertEqual(relationship_set.relationships[0].name, 'foo')
self.assertEqual(
relationship_set.relationships[1].relationships[0].name, 'bar')
self.assertEqual(
relationship_set.relationships[1].relationships[0].operator, '>=')
self.assertEqual(
relationship_set.relationships[1].relationships[0].version, '1')
self.assertEqual(
relationship_set.relationships[1].relationships[1].name, 'baz')
self.assertEqual(
parse_depends('foo (=1.0)'),
RelationshipSet(
VersionedRelationship(name='foo', operator='=',
version='1.0')))
# Unhappy path (parsing errors).
self.assertRaises(ValueError, parse_depends, 'foo (bar) (baz)')
self.assertRaises(ValueError, parse_depends, 'foo (bar baz qux)')
def test_relationship_unparsing(self):
"""Test the unparsing (serialization) of parsed relationship declarations."""
def strip(text):
return re.sub(r'\s+', '', text)
relationship_set = parse_depends('foo, bar(>=1)|baz[i386]')
assert text_type(relationship_set) == 'foo, bar (>= 1) | baz [i386]'
assert strip(repr(relationship_set)) == strip("""
RelationshipSet(
Relationship(name='foo', architectures=()),
AlternativeRelationship(
VersionedRelationship(name='bar', operator='>=', version='1', architectures=()),
Relationship(name='baz', architectures=('i386',))
)
)
""")
def test_relationship_evaluation(self):
"""Test the evaluation of package relationships."""
# Relationships without versions.
relationship_set = parse_depends('python')
assert relationship_set.matches('python')
assert not relationship_set.matches('python2.7')
assert list(relationship_set.names) == ['python']
# Alternatives (OR) without versions.
relationship_set = parse_depends('python2.6 | python2.7')
assert not relationship_set.matches('python2.5')
assert relationship_set.matches('python2.6')
assert relationship_set.matches('python2.7')
assert not relationship_set.matches('python3.0')
assert sorted(relationship_set.names) == ['python2.6', 'python2.7']
# Combinations (AND) with versions.
relationship_set = parse_depends('python (>= 2.6), python (<< 3) | python (>= 3.4)')
assert not relationship_set.matches('python', '2.5')
assert relationship_set.matches('python', '2.6')
assert relationship_set.matches('python', '2.7')
assert not relationship_set.matches('python', '3.0')
assert relationship_set.matches('python', '3.4')
assert list(relationship_set.names) == ['python']
# Testing for matches without providing a version is valid (should not
# raise an error) but will never match a relationship with a version.
relationship_set = parse_depends('python (>= 2.6), python (<< 3)')
assert relationship_set.matches('python', '2.7')
assert not relationship_set.matches('python')
assert list(relationship_set.names) == ['python']
# Distinguishing between packages whose name was matched but whose
# version didn't match vs packages whose name wasn't matched.
relationship_set = parse_depends('python (>= 2.6), python (<< 3) | python (>= 3.4)')
assert relationship_set.matches('python', '2.7') is True # name and version match
assert relationship_set.matches('python', '2.5') is False # name matched, version didn't
assert relationship_set.matches('python2.6') is None # name didn't match
assert relationship_set.matches('python', '3.0') is False # name in alternative matched, version didn't
assert list(relationship_set.names) == ['python']
def test_relationship_unparsing(self):
"""Test the unparsing (serialization) of parsed relationship declarations."""
def strip(text):
return re.sub(r'\s+', '', text)
relationship_set = parse_depends('foo, bar(>=1)|baz[i386]')
assert text_type(relationship_set) == 'foo, bar (>= 1) | baz [i386]'
assert strip(repr(relationship_set)) == strip("""
RelationshipSet(
Relationship(name='foo', architectures=()),
AlternativeRelationship(
VersionedRelationship(name='bar', operator='>=', version='1', architectures=()),
Relationship(name='baz', architectures=('i386',))
)
)
""")
def test_custom_pretty_printer(self):
printer = CustomPrettyPrinter()
# Test pretty printing of debian.deb822.Deb822 objects.
self.assertEqual(remove_unicode_prefixes(printer.pformat(deb822_from_string('''
Package: pretty-printed-control-fields
Version: 1.0
Architecture: all
'''))), remove_unicode_prefixes(dedent('''
{'Architecture': u'all',
'Package': u'pretty-printed-control-fields',
'Version': u'1.0'}
''')))
# Test pretty printing of RelationshipSet objects.
depends_line = 'python-deb-pkg-tools, python-pip, python-pip-accel'
self.assertEqual(printer.pformat(parse_depends(depends_line)), dedent('''
RelationshipSet(Relationship(name='python-deb-pkg-tools'),
Relationship(name='python-pip'),
Relationship(name='python-pip-accel'))
'''))
def test_custom_pretty_printer(self):
"""Test pretty printing of deb822 objects and parsed relationships."""
printer = CustomPrettyPrinter()
# Test pretty printing of debian.deb822.Deb822 objects.
deb822_object = deb822_from_string('''
Package: pretty-printed-control-fields
Version: 1.0
Architecture: all
''')
formatted_object = printer.pformat(deb822_object)
assert normalize_repr_output(formatted_object) == normalize_repr_output('''
{'Architecture': u'all',
'Package': u'pretty-printed-control-fields',
'Version': u'1.0'}
''')
# Test pretty printing of RelationshipSet objects.
relationship_set = parse_depends('python-deb-pkg-tools, python-pip, python-pip-accel')
formatted_object = printer.pformat(relationship_set)
assert normalize_repr_output(formatted_object) == normalize_repr_output('''
RelationshipSet(Relationship(name='python-deb-pkg-tools', architectures=()),
Relationship(name='python-pip', architectures=()),
Relationship(name='python-pip-accel', architectures=()))
''')
def test_relationship_sorting(self):
relationship_set = parse_depends('foo | bar, baz | qux')
self.assertEqual(relationship_set, RelationshipSet(
AlternativeRelationship(Relationship(name='baz'), Relationship(name='qux')),
AlternativeRelationship(Relationship(name='foo'), Relationship(name='bar'))))
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 parse_control_fields(input_fields):
r"""
Parse Debian control file fields.
:param input_fields: The dictionary to convert (may be an instance of
:class:`debian.deb822.Deb822` but doesn't have
to be).
:returns: A :class:`dict` object with the converted fields.
The :class:`debian.deb822.Deb822` class can be used to parse Debian control
files but the result is a simple :class:`dict` with string name/value
pairs. This function takes an existing :class:`debian.deb822.Deb822`
instance and converts the following fields into friendlier formats:
- The values of the fields given by :data:`DEPENDS_LIKE_FIELDS` are parsed
into Python data structures using :func:`.parse_depends()`.
- The value of the `Installed-Size` field is converted to an integer.
Let's look at an example. We start with the raw control file contents so
you can see the complete input:
>>> from deb_pkg_tools.control import deb822_from_string
>>> unparsed_fields = deb822_from_string('''
... Package: python3.4-minimal
... Version: 3.4.0-1+precise1
... Architecture: amd64
... Installed-Size: 3586
... Pre-Depends: libc6 (>= 2.15)
... Depends: libpython3.4-minimal (= 3.4.0-1+precise1), libexpat1 (>= 1.95.8), libgcc1 (>= 1:4.1.1), zlib1g (>= 1:1.2.0), foo | bar
... Recommends: python3.4
... Suggests: binfmt-support
... Conflicts: binfmt-support (<< 1.1.2)
... ''')
Here are the control file fields as parsed by the
:class:`debian.deb822` module:
>>> print(repr(unparsed_fields))
{'Architecture': u'amd64',
'Conflicts': u'binfmt-support (<< 1.1.2)',
'Depends': u'libpython3.4-minimal (= 3.4.0-1+precise1), libexpat1 (>= 1.95.8), libgcc1 (>= 1:4.1.1), zlib1g (>= 1:1.2.0), foo | bar',
'Installed-Size': u'3586',
'Package': u'python3.4-minimal',
'Pre-Depends': u'libc6 (>= 2.15)',
'Recommends': u'python3.4',
'Suggests': u'binfmt-support',
'Version': u'3.4.0-1+precise1'}
Notice the value of the `Depends` line is a comma separated string, i.e. it
hasn't been parsed. Now here are the control file fields parsed by the
:func:`parse_control_fields()` function:
>>> from deb_pkg_tools.control import parse_control_fields
>>> parsed_fields = parse_control_fields(unparsed_fields)
>>> print(repr(parsed_fields))
{'Architecture': u'amd64',
'Conflicts': RelationshipSet(VersionedRelationship(name=u'binfmt-support', operator=u'<<', version=u'1.1.2')),
'Depends': RelationshipSet(VersionedRelationship(name=u'libpython3.4-minimal', operator=u'=', version=u'3.4.0-1+precise1'),
VersionedRelationship(name=u'libexpat1', operator=u'>=', version=u'1.95.8'),
VersionedRelationship(name=u'libgcc1', operator=u'>=', version=u'1:4.1.1'),
VersionedRelationship(name=u'zlib1g', operator=u'>=', version=u'1:1.2.0'),
AlternativeRelationship(Relationship(name=u'foo'), Relationship(name=u'bar'))),
'Installed-Size': 3586,
'Package': u'python3.4-minimal',
'Pre-Depends': RelationshipSet(VersionedRelationship(name=u'libc6', operator=u'>=', version=u'2.15')),
'Recommends': u'python3.4',
'Suggests': RelationshipSet(Relationship(name=u'binfmt-support')),
'Version': u'3.4.0-1+precise1'}
For more information about fields like `Depends` and `Suggests` please
refer to the documentation of :func:`.parse_depends()`.
"""
logger.debug("Parsing %i control fields ..", len(input_fields))
output_fields = {}
for name, unparsed_value in input_fields.items():
name = normalize_control_field_name(name)
if name in DEPENDS_LIKE_FIELDS:
parsed_value = parse_depends(unparsed_value)
elif name == 'Installed-Size':
parsed_value = int(unparsed_value)
else:
parsed_value = unparsed_value
output_fields[name] = parsed_value
logger.debug("Parsed fields: %s", output_fields)
return output_fields
def parse_control_fields(input_fields):
r"""
The :py:class:`debian.deb822.Deb822` class can be used to parse Debian
control files but the result is a simple :py:class:`dict` with string
name/value pairs. This function takes an existing :py:class:`debian.deb822.Deb822`
instance and converts known fields into friendlier formats, for example:
- The value of `Depends`, `Provides`, `Replaces` and `Conflicts` fields is
converted to a list of strings.
- The value of the `Installed-Size` field is converted to an integer.
:param input_fields: The dictionary to convert (may be an instance of
:py:class:`debian.deb822.Deb822` but doesn't have
to be).
:returns: A :py:class:`dict` object with the converted fields.
Let's look at an example. We start with the raw control file contents so
you can see the complete input:
>>> from deb_pkg_tools.control import deb822_from_string
>>> unparsed_fields = deb822_from_string('''
... Package: python3.4-minimal
... Version: 3.4.0-1+precise1
... Architecture: amd64
... Installed-Size: 3586
... Pre-Depends: libc6 (>= 2.15)
... Depends: libpython3.4-minimal (= 3.4.0-1+precise1), libexpat1 (>= 1.95.8), libgcc1 (>= 1:4.1.1), zlib1g (>= 1:1.2.0), foo | bar
... Recommends: python3.4
... Suggests: binfmt-support
... Conflicts: binfmt-support (<< 1.1.2)
... ''')
Here are the control file fields as parsed by the
:py:class:`debian.deb822` module:
>>> print(repr(unparsed_fields))
{'Architecture': u'amd64',
'Conflicts': u'binfmt-support (<< 1.1.2)',
'Depends': u'libpython3.4-minimal (= 3.4.0-1+precise1), libexpat1 (>= 1.95.8), libgcc1 (>= 1:4.1.1), zlib1g (>= 1:1.2.0), foo | bar',
'Installed-Size': u'3586',
'Package': u'python3.4-minimal',
'Pre-Depends': u'libc6 (>= 2.15)',
'Recommends': u'python3.4',
'Suggests': u'binfmt-support',
'Version': u'3.4.0-1+precise1'}
Notice the value of the `Depends` line is a comma separated string, i.e. it
hasn't been parsed. Now here are the control file fields parsed by the
:py:func:`parse_control_fields()` function:
>>> from deb_pkg_tools.control import parse_control_fields
>>> parsed_fields = parse_control_fields(unparsed_fields)
>>> print(repr(parsed_fields))
{'Architecture': u'amd64',
'Conflicts': RelationshipSet(VersionedRelationship(name=u'binfmt-support', operator=u'<<', version=u'1.1.2')),
'Depends': RelationshipSet(VersionedRelationship(name=u'libpython3.4-minimal', operator=u'=', version=u'3.4.0-1+precise1'),
VersionedRelationship(name=u'libexpat1', operator=u'>=', version=u'1.95.8'),
VersionedRelationship(name=u'libgcc1', operator=u'>=', version=u'1:4.1.1'),
VersionedRelationship(name=u'zlib1g', operator=u'>=', version=u'1:1.2.0'),
AlternativeRelationship(Relationship(name=u'foo'), Relationship(name=u'bar'))),
'Installed-Size': 3586,
'Package': u'python3.4-minimal',
'Pre-Depends': RelationshipSet(VersionedRelationship(name=u'libc6', operator=u'>=', version=u'2.15')),
'Recommends': u'python3.4',
'Suggests': RelationshipSet(Relationship(name=u'binfmt-support')),
'Version': u'3.4.0-1+precise1'}
For more information about fields like `Depends` and `Suggests` please
refer to the documentation of :py:func:`.parse_depends()`.
"""
logger.debug("Parsing %i control fields ..", len(input_fields))
output_fields = {}
for name, unparsed_value in input_fields.items():
name = normalize_control_field_name(name)
if name in DEPENDS_LIKE_FIELDS:
parsed_value = parse_depends(unparsed_value)
elif name == "Installed-Size":
parsed_value = int(unparsed_value)
else:
parsed_value = unparsed_value
output_fields[name] = parsed_value
logger.debug("Parsed fields: %s", output_fields)
return output_fields