Adding debian version 4.19.249-2.debian/4.19.249-2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 1697 insertions, 0 deletions

diff --git a/debian/lib/python/debian_linux/__init__.py b/debian/lib/python/debian_linux/__init__.py
new file mode 100644
index 000000000..b785cebf7
--- /dev/null
+++ b/debian/lib/python/debian_linux/__init__.py
@@ -0,0 +1 @@
+# Module
diff --git a/debian/lib/python/debian_linux/abi.py b/debian/lib/python/debian_linux/abi.py
new file mode 100644
index 000000000..8532db16d
--- /dev/null
+++ b/debian/lib/python/debian_linux/abi.py
@@ -0,0 +1,42 @@
+class Symbol(object):
+    def __init__(self, name, module, version, export):
+        self.name, self.module = name, module
+        self.version, self.export = version, export
+
+    def __eq__(self, other):
+        if not isinstance(other, Symbol):
+            return NotImplemented
+
+        # Symbols are resolved to modules by depmod at installation/
+        # upgrade time, not compile time, so moving a symbol between
+        # modules is not an ABI change.  Compare everything else.
+        if self.name != other.name:
+            return False
+        if self.version != other.version:
+            return False
+        if self.export != other.export:
+            return False
+
+        return True
+
+    def __ne__(self, other):
+        ret = self.__eq__(other)
+        if ret is NotImplemented:
+            return ret
+        return not ret
+
+
+class Symbols(dict):
+    def __init__(self, file=None):
+        if file:
+            self.read(file)
+
+    def read(self, file):
+        for line in file:
+            version, name, module, export = line.strip().split()
+            self[name] = Symbol(name, module, version, export)
+
+    def write(self, file):
+        for s in sorted(self.values(), key=lambda i: i.name):
+            file.write("%s %s %s %s\n" %
+                       (s.version, s.name, s.module, s.export))
diff --git a/debian/lib/python/debian_linux/config.py b/debian/lib/python/debian_linux/config.py
new file mode 100644
index 000000000..37e3764ab
--- /dev/null
+++ b/debian/lib/python/debian_linux/config.py
@@ -0,0 +1,256 @@
+import collections
+import os
+import os.path
+import pickle
+import re
+import sys
+
+from configparser import RawConfigParser
+
+__all__ = [
+    'ConfigCoreDump',
+    'ConfigCoreHierarchy',
+    'ConfigParser',
+]
+
+
+class SchemaItemBoolean(object):
+    def __call__(self, i):
+        i = i.strip().lower()
+        if i in ("true", "1"):
+            return True
+        if i in ("false", "0"):
+            return False
+        raise ValueError
+
+
+class SchemaItemInteger(object):
+    def __call__(self, i):
+        return int(i.strip(), 0)
+
+
+class SchemaItemList(object):
+    def __init__(self, type=r"\s+"):
+        self.type = type
+
+    def __call__(self, i):
+        i = i.strip()
+        if not i:
+            return []
+        return [j.strip() for j in re.split(self.type, i)]
+
+
+# Using OrderedDict instead of dict makes the pickled config reproducible
+class ConfigCore(collections.OrderedDict):
+    def get_merge(self, section, arch, featureset, flavour, key, default=None):
+        temp = []
+
+        if arch and featureset and flavour:
+            temp.append(self.get((section, arch, featureset, flavour), {})
+                        .get(key))
+            temp.append(self.get((section, arch, None, flavour), {}).get(key))
+        if arch and featureset:
+            temp.append(self.get((section, arch, featureset), {}).get(key))
+        if arch:
+            temp.append(self.get((section, arch), {}).get(key))
+        if featureset:
+            temp.append(self.get((section, None, featureset), {}).get(key))
+        temp.append(self.get((section,), {}).get(key))
+
+        ret = []
+
+        for i in temp:
+            if i is None:
+                continue
+            elif isinstance(i, (list, tuple)):
+                ret.extend(i)
+            elif ret:
+                # TODO
+                return ret
+            else:
+                return i
+
+        return ret or default
+
+    def merge(self, section, arch=None, featureset=None, flavour=None):
+        ret = {}
+        ret.update(self.get((section,), {}))
+        if featureset:
+            ret.update(self.get((section, None, featureset), {}))
+        if arch:
+            ret.update(self.get((section, arch), {}))
+        if arch and featureset:
+            ret.update(self.get((section, arch, featureset), {}))
+        if arch and featureset and flavour:
+            ret.update(self.get((section, arch, None, flavour), {}))
+            ret.update(self.get((section, arch, featureset, flavour), {}))
+        return ret
+
+    def dump(self, fp):
+        pickle.dump(self, fp, 0)
+
+
+class ConfigCoreDump(object):
+    def __new__(self, fp):
+        return pickle.load(fp)
+
+
+class ConfigCoreHierarchy(object):
+    schema_base = {
+        'base': {
+            'arches': SchemaItemList(),
+            'enabled': SchemaItemBoolean(),
+            'featuresets': SchemaItemList(),
+            'flavours': SchemaItemList(),
+        },
+    }
+
+    def __new__(cls, schema, dirs=[]):
+        schema_complete = cls.schema_base.copy()
+        for key, value in schema.items():
+            schema_complete.setdefault(key, {}).update(value)
+        return cls.Reader(dirs, schema_complete)()
+
+    class Reader(object):
+        config_name = "defines"
+
+        def __init__(self, dirs, schema):
+            self.dirs, self.schema = dirs, schema
+
+        def __call__(self):
+            ret = ConfigCore()
+            self.read(ret)
+            return ret
+
+        def get_files(self, *dirs):
+            dirs = list(dirs)
+            dirs.append(self.config_name)
+            return (os.path.join(i, *dirs) for i in self.dirs if i)
+
+        def read_arch(self, ret, arch):
+            config = ConfigParser(self.schema)
+            config.read(self.get_files(arch))
+
+            featuresets = config['base', ].get('featuresets', [])
+            flavours = config['base', ].get('flavours', [])
+
+            for section in iter(config):
+                if section[0] in featuresets:
+                    real = (section[-1], arch, section[0])
+                elif len(section) > 1:
+                    real = (section[-1], arch, None) + section[:-1]
+                else:
+                    real = (section[-1], arch) + section[:-1]
+                s = ret.get(real, {})
+                s.update(config[section])
+                ret[tuple(real)] = s
+
+            for featureset in featuresets:
+                self.read_arch_featureset(ret, arch, featureset)
+
+            if flavours:
+                base = ret['base', arch]
+                featuresets.insert(0, 'none')
+                base['featuresets'] = featuresets
+                del base['flavours']
+                ret['base', arch] = base
+                ret['base', arch, 'none'] = {'flavours': flavours,
+                                             'implicit-flavour': True}
+
+        def read_arch_featureset(self, ret, arch, featureset):
+            config = ConfigParser(self.schema)
+            config.read(self.get_files(arch, featureset))
+
+            for section in iter(config):
+                real = (section[-1], arch, featureset) + section[:-1]
+                s = ret.get(real, {})
+                s.update(config[section])
+                ret[tuple(real)] = s
+
+        def read(self, ret):
+            config = ConfigParser(self.schema)
+            config.read(self.get_files())
+
+            arches = config['base', ]['arches']
+            featuresets = config['base', ].get('featuresets', [])
+
+            for section in iter(config):
+                if section[0].startswith('featureset-'):
+                    real = (section[-1], None, section[0][11:])
+                else:
+                    real = (section[-1],) + section[1:]
+                ret[real] = config[section]
+
+            for arch in arches:
+                self.read_arch(ret, arch)
+            for featureset in featuresets:
+                self.read_featureset(ret, featureset)
+
+        def read_featureset(self, ret, featureset):
+            config = ConfigParser(self.schema)
+            config.read(self.get_files('featureset-%s' % featureset))
+
+            for section in iter(config):
+                real = (section[-1], None, featureset)
+                s = ret.get(real, {})
+                s.update(config[section])
+                ret[real] = s
+
+
+class ConfigParser(object):
+    __slots__ = '_config', 'schemas'
+
+    def __init__(self, schemas):
+        self.schemas = schemas
+
+        self._config = RawConfigParser()
+
+    def __getitem__(self, key):
+        return self._convert()[key]
+
+    def __iter__(self):
+        return iter(self._convert())
+
+    def __str__(self):
+        return '<%s(%s)>' % (self.__class__.__name__, self._convert())
+
+    def _convert(self):
+        ret = {}
+        for section in self._config.sections():
+            data = {}
+            for key, value in self._config.items(section):
+                data[key] = value
+            section_list = section.split('_')
+            section_base = section_list[-1]
+            if section_base in self.schemas:
+                section_ret = tuple(section_list)
+                data = self._convert_one(self.schemas[section_base], data)
+            else:
+                section_ret = (section, )
+            ret[section_ret] = data
+        return ret
+
+    def _convert_one(self, schema, data):
+        ret = {}
+        for key, value in data.items():
+            if key in schema:
+                value = schema[key](value)
+            ret[key] = value
+        return ret
+
+    def keys(self):
+        return self._convert().keys()
+
+    def read(self, data):
+        return self._config.read(data)
+
+
+if __name__ == '__main__':
+    sys.path.append('debian/lib/python')
+    config = ConfigCoreDump(open('debian/config.defines.dump', 'rb'))
+    for section, items in sorted(config.items(),
+                                 key=(lambda a: tuple(i or '' for i in a[0]))):
+        print(u"[%s]" % (section,))
+        for item, value in sorted(items.items()):
+            print(u"%s: %s" % (item, value))
+        print()
diff --git a/debian/lib/python/debian_linux/debian.py b/debian/lib/python/debian_linux/debian.py
new file mode 100644
index 000000000..6fb26185d
--- /dev/null
+++ b/debian/lib/python/debian_linux/debian.py
@@ -0,0 +1,700 @@
+import collections
+import collections.abc
+import os.path
+import re
+import unittest
+
+from . import utils
+
+
+class Changelog(list):
+    _top_rules = r"""
+^
+(?P<source>
+    \w[-+0-9a-z.]+
+)
+\ 
+\(
+(?P<version>
+    [^\(\)\ \t]+
+)
+\)
+\s+
+(?P<distribution>
+    [-+0-9a-zA-Z.]+
+)
+\;\s+urgency=
+(?P<urgency>
+    \w+
+)
+(?:,|\n)
+"""
+    _top_re = re.compile(_top_rules, re.X)
+    _bottom_rules = r"""
+^
+\ --\ 
+(?P<maintainer>
+    \S(?:\ ?\S)*
+)
+\ \ 
+(?P<date>
+    (.*)
+)
+\n
+"""
+    _bottom_re = re.compile(_bottom_rules, re.X)
+    _ignore_re = re.compile(r'^(?:  |\s*\n)')
+
+    class Entry(object):
+        __slot__ = ('distribution', 'source', 'version', 'urgency',
+                    'maintainer', 'date')
+
+        def __init__(self, **kwargs):
+            for key, value in kwargs.items():
+                setattr(self, key, value)
+
+    def __init__(self, dir='', version=None, file=None):
+        if version is None:
+            version = Version
+        if file:
+            self._parse(version, file)
+        else:
+            with open(os.path.join(dir, "debian/changelog"),
+                      encoding="UTF-8") as f:
+                self._parse(version, f)
+
+    def _parse(self, version, f):
+        top_match = None
+        line_no = 0
+
+        for line in f:
+            line_no += 1
+
+            if self._ignore_re.match(line):
+                pass
+            elif top_match is None:
+                top_match = self._top_re.match(line)
+                if not top_match:
+                    raise Exception('invalid top line %d in changelog' %
+                                    line_no)
+                try:
+                    v = version(top_match.group('version'))
+                except Exception:
+                    if not len(self):
+                        raise
+                    v = Version(top_match.group('version'))
+            else:
+                bottom_match = self._bottom_re.match(line)
+                if not bottom_match:
+                    raise Exception('invalid bottom line %d in changelog' %
+                                    line_no)
+
+                self.append(self.Entry(
+                    distribution=top_match.group('distribution'),
+                    source=top_match.group('source'),
+                    version=v,
+                    urgency=top_match.group('urgency'),
+                    maintainer=bottom_match.group('maintainer'),
+                    date=bottom_match.group('date')))
+                top_match = bottom_match = None
+
+
+class Version(object):
+    _epoch_re = re.compile(r'\d+$')
+    _upstream_re = re.compile(r'[0-9][A-Za-z0-9.+\-:~]*$')
+    _revision_re = re.compile(r'[A-Za-z0-9+.~]+$')
+
+    def __init__(self, version):
+        try:
+            split = version.index(':')
+        except ValueError:
+            epoch, rest = None, version
+        else:
+            epoch, rest = version[0:split], version[split+1:]
+        try:
+            split = rest.rindex('-')
+        except ValueError:
+            upstream, revision = rest, None
+        else:
+            upstream, revision = rest[0:split], rest[split+1:]
+        if (epoch is not None and not self._epoch_re.match(epoch)) or \
+           not self._upstream_re.match(upstream) or \
+           (revision is not None and not self._revision_re.match(revision)):
+            raise RuntimeError(u"Invalid debian version")
+        self.epoch = epoch and int(epoch)
+        self.upstream = upstream
+        self.revision = revision
+
+    def __str__(self):
+        return self.complete
+
+    @property
+    def complete(self):
+        if self.epoch is not None:
+            return u"%d:%s" % (self.epoch, self.complete_noepoch)
+        return self.complete_noepoch
+
+    @property
+    def complete_noepoch(self):
+        if self.revision is not None:
+            return u"%s-%s" % (self.upstream, self.revision)
+        return self.upstream
+
+    @property
+    def debian(self):
+        from warnings import warn
+        warn(u"debian argument was replaced by revision", DeprecationWarning,
+             stacklevel=2)
+        return self.revision
+
+
+class _VersionTest(unittest.TestCase):
+    def test_native(self):
+        v = Version('1.2+c~4')
+        self.assertEqual(v.epoch, None)
+        self.assertEqual(v.upstream, '1.2+c~4')
+        self.assertEqual(v.revision, None)
+        self.assertEqual(v.complete, '1.2+c~4')
+        self.assertEqual(v.complete_noepoch, '1.2+c~4')
+
+    def test_nonnative(self):
+        v = Version('1-2+d~3')
+        self.assertEqual(v.epoch, None)
+        self.assertEqual(v.upstream, '1')
+        self.assertEqual(v.revision, '2+d~3')
+        self.assertEqual(v.complete, '1-2+d~3')
+        self.assertEqual(v.complete_noepoch, '1-2+d~3')
+
+    def test_native_epoch(self):
+        v = Version('5:1.2.3')
+        self.assertEqual(v.epoch, 5)
+        self.assertEqual(v.upstream, '1.2.3')
+        self.assertEqual(v.revision, None)
+        self.assertEqual(v.complete, '5:1.2.3')
+        self.assertEqual(v.complete_noepoch, '1.2.3')
+
+    def test_nonnative_epoch(self):
+        v = Version('5:1.2.3-4')
+        self.assertEqual(v.epoch, 5)
+        self.assertEqual(v.upstream, '1.2.3')
+        self.assertEqual(v.revision, '4')
+        self.assertEqual(v.complete, '5:1.2.3-4')
+        self.assertEqual(v.complete_noepoch, '1.2.3-4')
+
+    def test_multi_hyphen(self):
+        v = Version('1-2-3')
+        self.assertEqual(v.epoch, None)
+        self.assertEqual(v.upstream, '1-2')
+        self.assertEqual(v.revision, '3')
+        self.assertEqual(v.complete, '1-2-3')
+
+    def test_multi_colon(self):
+        v = Version('1:2:3')
+        self.assertEqual(v.epoch, 1)
+        self.assertEqual(v.upstream, '2:3')
+        self.assertEqual(v.revision, None)
+
+    def test_invalid_epoch(self):
+        with self.assertRaises(RuntimeError):
+            Version('a:1')
+        with self.assertRaises(RuntimeError):
+            Version('-1:1')
+        with self.assertRaises(RuntimeError):
+            Version('1a:1')
+
+    def test_invalid_upstream(self):
+        with self.assertRaises(RuntimeError):
+            Version('1_2')
+        with self.assertRaises(RuntimeError):
+            Version('1/2')
+        with self.assertRaises(RuntimeError):
+            Version('a1')
+        with self.assertRaises(RuntimeError):
+            Version('1 2')
+
+    def test_invalid_revision(self):
+        with self.assertRaises(RuntimeError):
+            Version('1-2_3')
+        with self.assertRaises(RuntimeError):
+            Version('1-2/3')
+        with self.assertRaises(RuntimeError):
+            Version('1-2:3')
+
+
+class VersionLinux(Version):
+    _upstream_re = re.compile(r"""
+(?P<version>
+    \d+\.\d+
+)
+(?P<update>
+    (?:\.\d+)?
+    (?:-[a-z]+\d+)?
+)
+(?:
+    ~
+    (?P<modifier>
+        .+?
+    )
+)?
+(?:
+    \.dfsg\.
+    (?P<dfsg>
+        \d+
+    )
+)?
+$
+    """, re.X)
+    _revision_re = re.compile(r"""
+\d+
+(\.\d+)?
+(?:
+    (?P<revision_experimental>
+        ~exp\d+
+    )
+    |
+    (?P<revision_security>
+        (?:[~+]deb\d+u\d+)+
+    )?
+    (?P<revision_backports>
+        ~bpo\d+\+\d+
+    )?
+    |
+    (?P<revision_other>
+        .+?
+    )
+)
+(?:\+b\d+)?
+$
+    """, re.X)
+
+    def __init__(self, version):
+        super(VersionLinux, self).__init__(version)
+        up_match = self._upstream_re.match(self.upstream)
+        rev_match = self._revision_re.match(self.revision)
+        if up_match is None or rev_match is None:
+            raise RuntimeError(u"Invalid debian linux version")
+        d = up_match.groupdict()
+        self.linux_modifier = d['modifier']
+        self.linux_version = d['version']
+        if d['modifier'] is not None:
+            assert not d['update']
+            self.linux_upstream = '-'.join((d['version'], d['modifier']))
+        else:
+            self.linux_upstream = d['version']
+        self.linux_upstream_full = self.linux_upstream + d['update']
+        self.linux_dfsg = d['dfsg']
+        d = rev_match.groupdict()
+        self.linux_revision_experimental = d['revision_experimental'] and True
+        self.linux_revision_security = d['revision_security'] and True
+        self.linux_revision_backports = d['revision_backports'] and True
+        self.linux_revision_other = d['revision_other'] and True
+
+
+class _VersionLinuxTest(unittest.TestCase):
+    def test_stable(self):
+        v = VersionLinux('1.2.3-4')
+        self.assertEqual(v.linux_version, '1.2')
+        self.assertEqual(v.linux_upstream, '1.2')
+        self.assertEqual(v.linux_upstream_full, '1.2.3')
+        self.assertEqual(v.linux_modifier, None)
+        self.assertEqual(v.linux_dfsg, None)
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertFalse(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_rc(self):
+        v = VersionLinux('1.2~rc3-4')
+        self.assertEqual(v.linux_version, '1.2')
+        self.assertEqual(v.linux_upstream, '1.2-rc3')
+        self.assertEqual(v.linux_upstream_full, '1.2-rc3')
+        self.assertEqual(v.linux_modifier, 'rc3')
+        self.assertEqual(v.linux_dfsg, None)
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertFalse(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_dfsg(self):
+        v = VersionLinux('1.2~rc3.dfsg.1-4')
+        self.assertEqual(v.linux_version, '1.2')
+        self.assertEqual(v.linux_upstream, '1.2-rc3')
+        self.assertEqual(v.linux_upstream_full, '1.2-rc3')
+        self.assertEqual(v.linux_modifier, 'rc3')
+        self.assertEqual(v.linux_dfsg, '1')
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertFalse(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_experimental(self):
+        v = VersionLinux('1.2~rc3-4~exp5')
+        self.assertEqual(v.linux_upstream_full, '1.2-rc3')
+        self.assertTrue(v.linux_revision_experimental)
+        self.assertFalse(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_security(self):
+        v = VersionLinux('1.2.3-4+deb10u1')
+        self.assertEqual(v.linux_upstream_full, '1.2.3')
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertTrue(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_backports(self):
+        v = VersionLinux('1.2.3-4~bpo9+10')
+        self.assertEqual(v.linux_upstream_full, '1.2.3')
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertFalse(v.linux_revision_security)
+        self.assertTrue(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_security_backports(self):
+        v = VersionLinux('1.2.3-4+deb10u1~bpo9+10')
+        self.assertEqual(v.linux_upstream_full, '1.2.3')
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertTrue(v.linux_revision_security)
+        self.assertTrue(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_lts_backports(self):
+        # Backport during LTS, as an extra package in the -security
+        # suite.  Since this is not part of a -backports suite it
+        # shouldn't get the linux_revision_backports flag.
+        v = VersionLinux('1.2.3-4~deb9u10')
+        self.assertEqual(v.linux_upstream_full, '1.2.3')
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertTrue(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_lts_backports_2(self):
+        # Same but with two security extensions in the revision.
+        v = VersionLinux('1.2.3-4+deb10u1~deb9u10')
+        self.assertEqual(v.linux_upstream_full, '1.2.3')
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertTrue(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_binnmu(self):
+        v = VersionLinux('1.2.3-4+b1')
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertFalse(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertFalse(v.linux_revision_other)
+
+    def test_other_revision(self):
+        v = VersionLinux('4.16.5-1+revert+crng+ready')  # from #898087
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertFalse(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertTrue(v.linux_revision_other)
+
+    def test_other_revision_binnmu(self):
+        v = VersionLinux('4.16.5-1+revert+crng+ready+b1')
+        self.assertFalse(v.linux_revision_experimental)
+        self.assertFalse(v.linux_revision_security)
+        self.assertFalse(v.linux_revision_backports)
+        self.assertTrue(v.linux_revision_other)
+
+
+class PackageArchitecture(collections.abc.MutableSet):
+    __slots__ = '_data'
+
+    def __init__(self, value=None):
+        self._data = set()
+        if value:
+            self.extend(value)
+
+    def __contains__(self, value):
+        return self._data.__contains__(value)
+
+    def __iter__(self):
+        return self._data.__iter__()
+
+    def __len__(self):
+        return self._data.__len__()
+
+    def __str__(self):
+        return ' '.join(sorted(self))
+
+    def add(self, value):
+        self._data.add(value)
+
+    def discard(self, value):
+        self._data.discard(value)
+
+    def extend(self, value):
+        if isinstance(value, str):
+            for i in re.split(r'\s', value.strip()):
+                self.add(i)
+        else:
+            raise RuntimeError
+
+
+class PackageDescription(object):
+    __slots__ = "short", "long"
+
+    def __init__(self, value=None):
+        self.short = []
+        self.long = []
+        if value is not None:
+            desc_split = value.split("\n", 1)
+            self.append_short(desc_split[0])
+            if len(desc_split) == 2:
+                self.append(desc_split[1])
+
+    def __str__(self):
+        wrap = utils.TextWrapper(width=74, fix_sentence_endings=True).wrap
+        short = ', '.join(self.short)
+        long_pars = []
+        for i in self.long:
+            long_pars.append(wrap(i))
+        long = '\n .\n '.join(['\n '.join(i) for i in long_pars])
+        return short + '\n ' + long if long else short
+
+    def append(self, str):
+        str = str.strip()
+        if str:
+            self.long.extend(str.split(u"\n.\n"))
+
+    def append_short(self, str):
+        for i in [i.strip() for i in str.split(u",")]:
+            if i:
+                self.short.append(i)
+
+    def extend(self, desc):
+        if isinstance(desc, PackageDescription):
+            self.short.extend(desc.short)
+            self.long.extend(desc.long)
+        else:
+            raise TypeError
+
+
+class PackageRelation(list):
+    def __init__(self, value=None, override_arches=None):
+        if value:
+            self.extend(value, override_arches)
+
+    def __str__(self):
+        return ', '.join(str(i) for i in self)
+
+    def _search_value(self, value):
+        for i in self:
+            if i._search_value(value):
+                return i
+        return None
+
+    def append(self, value, override_arches=None):
+        if isinstance(value, str):
+            value = PackageRelationGroup(value, override_arches)
+        elif not isinstance(value, PackageRelationGroup):
+            raise ValueError(u"got %s" % type(value))
+        j = self._search_value(value)
+        if j:
+            j._update_arches(value)
+        else:
+            super(PackageRelation, self).append(value)
+
+    def extend(self, value, override_arches=None):
+        if isinstance(value, str):
+            value = (j.strip() for j in re.split(r',', value.strip()))
+        for i in value:
+            self.append(i, override_arches)
+
+
+class PackageRelationGroup(list):
+    def __init__(self, value=None, override_arches=None):
+        if value:
+            self.extend(value, override_arches)
+
+    def __str__(self):
+        return ' | '.join(str(i) for i in self)
+
+    def _search_value(self, value):
+        for i, j in zip(self, value):
+            if i.name != j.name or i.operator != j.operator or \
+               i.version != j.version or i.restrictions != j.restrictions:
+                return None
+        return self
+
+    def _update_arches(self, value):
+        for i, j in zip(self, value):
+            if i.arches:
+                for arch in j.arches:
+                    if arch not in i.arches:
+                        i.arches.append(arch)
+
+    def append(self, value, override_arches=None):
+        if isinstance(value, str):
+            value = PackageRelationEntry(value, override_arches)
+        elif not isinstance(value, PackageRelationEntry):
+            raise ValueError
+        super(PackageRelationGroup, self).append(value)
+
+    def extend(self, value, override_arches=None):
+        if isinstance(value, str):
+            value = (j.strip() for j in re.split(r'\|', value.strip()))
+        for i in value:
+            self.append(i, override_arches)
+
+
+class PackageRelationEntry(object):
+    __slots__ = "name", "operator", "version", "arches", "restrictions"
+
+    _re = re.compile(r'^(\S+)(?: \((<<|<=|=|!=|>=|>>)\s*([^)]+)\))?'
+                     r'(?: \[([^]]+)\])?(?: <([^>]+)>)?$')
+
+    class _operator(object):
+        OP_LT = 1
+        OP_LE = 2
+        OP_EQ = 3
+        OP_NE = 4
+        OP_GE = 5
+        OP_GT = 6
+
+        operators = {
+                '<<': OP_LT,
+                '<=': OP_LE,
+                '=': OP_EQ,
+                '!=': OP_NE,
+                '>=': OP_GE,
+                '>>': OP_GT,
+        }
+
+        operators_neg = {
+                OP_LT: OP_GE,
+                OP_LE: OP_GT,
+                OP_EQ: OP_NE,
+                OP_NE: OP_EQ,
+                OP_GE: OP_LT,
+                OP_GT: OP_LE,
+        }
+
+        operators_text = dict((b, a) for a, b in operators.items())
+
+        __slots__ = '_op',
+
+        def __init__(self, value):
+            self._op = self.operators[value]
+
+        def __neg__(self):
+            return self.__class__(
+                self.operators_text[self.operators_neg[self._op]])
+
+        def __str__(self):
+            return self.operators_text[self._op]
+
+        def __eq__(self, other):
+            return type(other) == type(self) and self._op == other._op
+
+    def __init__(self, value=None, override_arches=None):
+        if not isinstance(value, str):
+            raise ValueError
+
+        self.parse(value)
+
+        if override_arches:
+            self.arches = list(override_arches)
+
+    def __str__(self):
+        ret = [self.name]
+        if self.operator is not None and self.version is not None:
+            ret.extend((' (', str(self.operator), ' ', self.version, ')'))
+        if self.arches:
+            ret.extend((' [', ' '.join(self.arches), ']'))
+        if self.restrictions:
+            ret.extend((' <', ' '.join(self.restrictions), '>'))
+        return ''.join(ret)
+
+    def parse(self, value):
+        match = self._re.match(value)
+        if match is None:
+            raise RuntimeError(u"Can't parse dependency %s" % value)
+        match = match.groups()
+        self.name = match[0]
+        if match[1] is not None:
+            self.operator = self._operator(match[1])
+        else:
+            self.operator = None
+        self.version = match[2]
+        if match[3] is not None:
+            self.arches = re.split(r'\s+', match[3])
+        else:
+            self.arches = []
+        if match[4] is not None:
+            self.restrictions = re.split(r'\s+', match[4])
+        else:
+            self.restrictions = []
+
+
+class _ControlFileDict(dict):
+    def __setitem__(self, key, value):
+        try:
+            cls = self._fields[key]
+            if not isinstance(value, cls):
+                value = cls(value)
+        except KeyError:
+            pass
+        super(_ControlFileDict, self).__setitem__(key, value)
+
+    def keys(self):
+        keys = set(super(_ControlFileDict, self).keys())
+        for i in self._fields.keys():
+            if i in self:
+                keys.remove(i)
+                yield i
+        for i in sorted(list(keys)):
+            yield i
+
+    def items(self):
+        for i in self.keys():
+            yield (i, self[i])
+
+    def values(self):
+        for i in self.keys():
+            yield self[i]
+
+
+class Package(_ControlFileDict):
+    _fields = collections.OrderedDict((
+        ('Package', str),
+        ('Source', str),
+        ('Architecture', PackageArchitecture),
+        ('Section', str),
+        ('Priority', str),
+        ('Maintainer', str),
+        ('Uploaders', str),
+        ('Standards-Version', str),
+        ('Build-Depends', PackageRelation),
+        ('Build-Depends-Arch', PackageRelation),
+        ('Build-Depends-Indep', PackageRelation),
+        ('Provides', PackageRelation),
+        ('Pre-Depends', PackageRelation),
+        ('Depends', PackageRelation),
+        ('Recommends', PackageRelation),
+        ('Suggests', PackageRelation),
+        ('Replaces', PackageRelation),
+        ('Breaks', PackageRelation),
+        ('Conflicts', PackageRelation),
+        ('Description', PackageDescription),
+    ))
+
+
+class TestsControl(_ControlFileDict):
+    _fields = collections.OrderedDict((
+        ('Tests', str),
+        ('Test-Command', str),
+        ('Restrictions', str),
+        ('Features', str),
+        ('Depends', PackageRelation),
+        ('Tests-Directory', str),
+        ('Classes', str),
+    ))
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/debian/lib/python/debian_linux/firmware.py b/debian/lib/python/debian_linux/firmware.py
new file mode 100644
index 000000000..592a66a45
--- /dev/null
+++ b/debian/lib/python/debian_linux/firmware.py
@@ -0,0 +1,90 @@
+import re
+
+
+class FirmwareFile(object):
+    def __init__(self, binary, desc=None, source=None, version=None):
+        self.binary = binary
+        self.desc = desc
+        self.source = source
+        self.version = version
+
+
+class FirmwareSection(object):
+    def __init__(self, driver, files, licence):
+        self.driver = driver
+        self.files = files
+        self.licence = licence
+
+
+class FirmwareWhence(list):
+    def __init__(self, file):
+        self.read(file)
+
+    def read(self, file):
+        in_header = True
+        driver = None
+        files = {}
+        licence = None
+        binary = []
+        desc = None
+        source = []
+        version = None
+
+        for line in file:
+            if line.startswith('----------'):
+                if in_header:
+                    in_header = False
+                else:
+                    # Finish old section
+                    if driver:
+                        self.append(FirmwareSection(driver, files, licence))
+                    driver = None
+                    files = {}
+                    licence = None
+                continue
+
+            if in_header:
+                continue
+
+            if line == '\n':
+                # End of field; end of file fields
+                for b in binary:
+                    # XXX The WHENCE file isn't yet consistent in its
+                    # association of binaries and their sources and
+                    # metadata.  This associates all sources and
+                    # metadata in a group with each binary.
+                    files[b] = FirmwareFile(b, desc, source, version)
+                binary = []
+                desc = None
+                source = []
+                version = None
+                continue
+
+            match = re.match(
+                r'(Driver|File|Info|Licen[cs]e|Source|Version'
+                r'|Original licen[cs]e info(?:rmation)?):\s*(.*)\n',
+                line)
+            if match:
+                keyword, value = match.group(1, 2)
+                if keyword == 'Driver':
+                    driver = value.split(' ')[0].lower()
+                elif keyword == 'File':
+                    match = re.match(r'(\S+)(?:\s+--\s+(.*))?', value)
+                    binary.append(match.group(1))
+                    desc = match.group(2)
+                elif keyword in ['Info', 'Version']:
+                    version = value
+                elif keyword == 'Source':
+                    source.append(value)
+                else:
+                    licence = value
+            elif licence is not None:
+                licence = (licence + '\n'
+                           + re.sub(r'^(?:[/ ]\*| \*/)?\s*(.*?)\s*$', r'\1',
+                                    line))
+
+        # Finish last section if non-empty
+        for b in binary:
+            files[b] = FirmwareFile(b, desc, source, version)
+        if driver:
+            self.append(FirmwareSection(driver, files, licence))
diff --git a/debian/lib/python/debian_linux/gencontrol.py b/debian/lib/python/debian_linux/gencontrol.py
new file mode 100644
index 000000000..69619da3e
--- /dev/null
+++ b/debian/lib/python/debian_linux/gencontrol.py
@@ -0,0 +1,418 @@
+import codecs
+import re
+from collections import OrderedDict
+
+from .debian import Changelog, PackageArchitecture, PackageDescription, \
+    PackageRelation, Version
+
+
+class PackagesList(OrderedDict):
+    def append(self, package):
+        self[package['Package']] = package
+
+    def extend(self, packages):
+        for package in packages:
+            self[package['Package']] = package
+
+
+class Makefile(object):
+    def __init__(self):
+        self.rules = {}
+        self.add('.NOTPARALLEL')
+
+    def add(self, name, deps=None, cmds=None):
+        if name in self.rules:
+            self.rules[name].add(deps, cmds)
+        else:
+            self.rules[name] = self.Rule(name, deps, cmds)
+        if deps is not None:
+            for i in deps:
+                if i not in self.rules:
+                    self.rules[i] = self.Rule(i)
+
+    def write(self, out):
+        for i in sorted(self.rules.keys()):
+            self.rules[i].write(out)
+
+    class Rule(object):
+        def __init__(self, name, deps=None, cmds=None):
+            self.name = name
+            self.deps, self.cmds = set(), []
+            self.add(deps, cmds)
+
+        def add(self, deps=None, cmds=None):
+            if deps is not None:
+                self.deps.update(deps)
+            if cmds is not None:
+                self.cmds.append(cmds)
+
+        def write(self, out):
+            deps_string = ''
+            if self.deps:
+                deps = list(self.deps)
+                deps.sort()
+                deps_string = ' ' + ' '.join(deps)
+
+            if self.cmds:
+                if deps_string:
+                    out.write('%s::%s\n' % (self.name, deps_string))
+                for c in self.cmds:
+                    out.write('%s::\n' % self.name)
+                    for i in c:
+                        out.write('\t%s\n' % i)
+            else:
+                out.write('%s:%s\n' % (self.name, deps_string))
+
+
+class MakeFlags(dict):
+    def __str__(self):
+        return ' '.join("%s='%s'" % i for i in sorted(self.items()))
+
+    def copy(self):
+        return self.__class__(super(MakeFlags, self).copy())
+
+
+def iter_featuresets(config):
+    for featureset in config['base', ]['featuresets']:
+        if config.merge('base', None, featureset).get('enabled', True):
+            yield featureset
+
+
+def iter_arches(config):
+    return iter(config['base', ]['arches'])
+
+
+def iter_arch_featuresets(config, arch):
+    for featureset in config['base', arch].get('featuresets', []):
+        if config.merge('base', arch, featureset).get('enabled', True):
+            yield featureset
+
+
+def iter_flavours(config, arch, featureset):
+    return iter(config['base', arch, featureset]['flavours'])
+
+
+class Gencontrol(object):
+    makefile_targets = ('binary-arch', 'build-arch', 'setup')
+    makefile_targets_indep = ('binary-indep', 'build-indep', 'setup')
+
+    def __init__(self, config, templates, version=Version):
+        self.config, self.templates = config, templates
+        self.changelog = Changelog(version=version)
+        self.vars = {}
+
+    def __call__(self):
+        packages = PackagesList()
+        makefile = Makefile()
+
+        self.do_source(packages)
+        self.do_main(packages, makefile)
+        self.do_extra(packages, makefile)
+
+        self.merge_build_depends(packages)
+        self.write(packages, makefile)
+
+    def do_source(self, packages):
+        source = self.templates["control.source"][0]
+        if not source.get('Source'):
+            source['Source'] = self.changelog[0].source
+        packages['source'] = self.process_package(source, self.vars)
+
+    def do_main(self, packages, makefile):
+        vars = self.vars.copy()
+
+        makeflags = MakeFlags()
+        extra = {}
+
+        self.do_main_setup(vars, makeflags, extra)
+        self.do_main_makefile(makefile, makeflags, extra)
+        self.do_main_packages(packages, vars, makeflags, extra)
+        self.do_main_recurse(packages, makefile, vars, makeflags, extra)
+
+    def do_main_setup(self, vars, makeflags, extra):
+        pass
+
+    def do_main_makefile(self, makefile, makeflags, extra):
+        makefile.add('build-indep',
+                     cmds=["$(MAKE) -f debian/rules.real build-indep %s" %
+                           makeflags])
+        makefile.add('binary-indep',
+                     cmds=["$(MAKE) -f debian/rules.real binary-indep %s" %
+                           makeflags])
+
+    def do_main_packages(self, packages, vars, makeflags, extra):
+        pass
+
+    def do_main_recurse(self, packages, makefile, vars, makeflags, extra):
+        for featureset in iter_featuresets(self.config):
+            self.do_indep_featureset(packages, makefile, featureset,
+                                     vars.copy(), makeflags.copy(), extra)
+        for arch in iter_arches(self.config):
+            self.do_arch(packages, makefile, arch, vars.copy(),
+                         makeflags.copy(), extra)
+
+    def do_extra(self, packages, makefile):
+        templates_extra = self.templates.get("control.extra", None)
+        if templates_extra is None:
+            return
+
+        packages_extra = self.process_packages(templates_extra, self.vars)
+        packages.extend(packages_extra)
+        extra_arches = {}
+        for package in packages_extra:
+            arches = package['Architecture']
+            for arch in arches:
+                i = extra_arches.get(arch, [])
+                i.append(package)
+                extra_arches[arch] = i
+        for arch in sorted(extra_arches.keys()):
+            cmds = []
+            for i in extra_arches[arch]:
+                cmds.append("$(MAKE) -f debian/rules.real install-dummy "
+                            "ARCH='%s' DH_OPTIONS='-p%s'" %
+                            (arch, i['Package']))
+            makefile.add('binary-arch_%s' % arch,
+                         ['binary-arch_%s_extra' % arch])
+            makefile.add("binary-arch_%s_extra" % arch, cmds=cmds)
+
+    def do_indep_featureset(self, packages, makefile, featureset, vars,
+                            makeflags, extra):
+        vars['localversion'] = ''
+        if featureset != 'none':
+            vars['localversion'] = '-' + featureset
+
+        self.do_indep_featureset_setup(vars, makeflags, featureset, extra)
+        self.do_indep_featureset_makefile(makefile, featureset, makeflags,
+                                          extra)
+        self.do_indep_featureset_packages(packages, makefile, featureset,
+                                          vars, makeflags, extra)
+
+    def do_indep_featureset_setup(self, vars, makeflags, featureset, extra):
+        pass
+
+    def do_indep_featureset_makefile(self, makefile, featureset, makeflags,
+                                     extra):
+        makeflags['FEATURESET'] = featureset
+
+        for i in self.makefile_targets_indep:
+            target1 = i
+            target2 = '_'.join((target1, featureset))
+            target3 = '_'.join((target2, 'real'))
+            makefile.add(target1, [target2])
+            makefile.add(target2, [target3])
+
+    def do_indep_featureset_packages(self, packages, makefile, featureset,
+                                     vars, makeflags, extra):
+        pass
+
+    def do_arch(self, packages, makefile, arch, vars, makeflags, extra):
+        vars['arch'] = arch
+
+        self.do_arch_setup(vars, makeflags, arch, extra)
+        self.do_arch_makefile(makefile, arch, makeflags, extra)
+        self.do_arch_packages(packages, makefile, arch, vars, makeflags, extra)
+        self.do_arch_recurse(packages, makefile, arch, vars, makeflags, extra)
+
+    def do_arch_setup(self, vars, makeflags, arch, extra):
+        pass
+
+    def do_arch_makefile(self, makefile, arch, makeflags, extra):
+        makeflags['ARCH'] = arch
+
+        for i in self.makefile_targets:
+            target1 = i
+            target2 = '_'.join((target1, arch))
+            target3 = '_'.join((target2, 'real'))
+            makefile.add(target1, [target2])
+            makefile.add(target2, [target3])
+
+    def do_arch_packages(self, packages, makefile, arch, vars, makeflags,
+                         extra):
+        pass
+
+    def do_arch_recurse(self, packages, makefile, arch, vars, makeflags,
+                        extra):
+        for featureset in iter_arch_featuresets(self.config, arch):
+            self.do_featureset(packages, makefile, arch, featureset,
+                               vars.copy(), makeflags.copy(), extra)
+
+    def do_featureset(self, packages, makefile, arch, featureset, vars,
+                      makeflags, extra):
+        vars['localversion'] = ''
+        if featureset != 'none':
+            vars['localversion'] = '-' + featureset
+
+        self.do_featureset_setup(vars, makeflags, arch, featureset, extra)
+        self.do_featureset_makefile(makefile, arch, featureset, makeflags,
+                                    extra)
+        self.do_featureset_packages(packages, makefile, arch, featureset, vars,
+                                    makeflags, extra)
+        self.do_featureset_recurse(packages, makefile, arch, featureset, vars,
+                                   makeflags, extra)
+
+    def do_featureset_setup(self, vars, makeflags, arch, featureset, extra):
+        pass
+
+    def do_featureset_makefile(self, makefile, arch, featureset, makeflags,
+                               extra):
+        makeflags['FEATURESET'] = featureset
+
+        for i in self.makefile_targets:
+            target1 = '_'.join((i, arch))
+            target2 = '_'.join((target1, featureset))
+            target3 = '_'.join((target2, 'real'))
+            makefile.add(target1, [target2])
+            makefile.add(target2, [target3])
+
+    def do_featureset_packages(self, packages, makefile, arch, featureset,
+                               vars, makeflags, extra):
+        pass
+
+    def do_featureset_recurse(self, packages, makefile, arch, featureset, vars,
+                              makeflags, extra):
+        for flavour in iter_flavours(self.config, arch, featureset):
+            self.do_flavour(packages, makefile, arch, featureset, flavour,
+                            vars.copy(), makeflags.copy(), extra)
+
+    def do_flavour(self, packages, makefile, arch, featureset, flavour, vars,
+                   makeflags, extra):
+        vars['localversion'] += '-' + flavour
+
+        self.do_flavour_setup(vars, makeflags, arch, featureset, flavour,
+                              extra)
+        self.do_flavour_makefile(makefile, arch, featureset, flavour,
+                                 makeflags, extra)
+        self.do_flavour_packages(packages, makefile, arch, featureset, flavour,
+                                 vars, makeflags, extra)
+
+    def do_flavour_setup(self, vars, makeflags, arch, featureset, flavour,
+                         extra):
+        for i in (
+            ('kernel-arch', 'KERNEL_ARCH'),
+            ('localversion', 'LOCALVERSION'),
+        ):
+            if i[0] in vars:
+                makeflags[i[1]] = vars[i[0]]
+
+    def do_flavour_makefile(self, makefile, arch, featureset, flavour,
+                            makeflags, extra):
+        makeflags['FLAVOUR'] = flavour
+
+        for i in self.makefile_targets:
+            target1 = '_'.join((i, arch, featureset))
+            target2 = '_'.join((target1, flavour))
+            target3 = '_'.join((target2, 'real'))
+            makefile.add(target1, [target2])
+            makefile.add(target2, [target3])
+
+    def do_flavour_packages(self, packages, makefile, arch, featureset,
+                            flavour, vars, makeflags, extra):
+        pass
+
+    def process_relation(self, dep, vars):
+        import copy
+        dep = copy.deepcopy(dep)
+        for groups in dep:
+            for item in groups:
+                item.name = self.substitute(item.name, vars)
+                if item.version:
+                    item.version = self.substitute(item.version, vars)
+        return dep
+
+    def process_description(self, in_desc, vars):
+        desc = in_desc.__class__()
+        desc.short = self.substitute(in_desc.short, vars)
+        for i in in_desc.long:
+            desc.append(self.substitute(i, vars))
+        return desc
+
+    def process_package(self, in_entry, vars={}):
+        entry = in_entry.__class__()
+        for key, value in in_entry.items():
+            if isinstance(value, PackageRelation):
+                value = self.process_relation(value, vars)
+            elif isinstance(value, PackageDescription):
+                value = self.process_description(value, vars)
+            else:
+                value = self.substitute(value, vars)
+            entry[key] = value
+        return entry
+
+    def process_packages(self, entries, vars):
+        return [self.process_package(i, vars) for i in entries]
+
+    def substitute(self, s, vars):
+        if isinstance(s, (list, tuple)):
+            return [self.substitute(i, vars) for i in s]
+
+        def subst(match):
+            return vars[match.group(1)]
+
+        return re.sub(r'@([-_a-z0-9]+)@', subst, str(s))
+
+    def merge_build_depends(self, packages):
+        # Merge Build-Depends pseudo-fields from binary packages into the
+        # source package
+        source = packages["source"]
+        arch_all = PackageArchitecture("all")
+        for name, package in packages.items():
+            if name == "source":
+                continue
+            dep = package.get("Build-Depends")
+            if not dep:
+                continue
+            del package["Build-Depends"]
+            for group in dep:
+                for item in group:
+                    if package["Architecture"] != arch_all and not item.arches:
+                        item.arches = sorted(package["Architecture"])
+                    if package.get("Build-Profiles") and not item.restrictions:
+                        profiles = package["Build-Profiles"]
+                        assert profiles[0] == "<" and profiles[-1] == ">"
+                        item.restrictions = re.split(r"\s+", profiles[1:-1])
+            if package["Architecture"] == arch_all:
+                dep_type = "Build-Depends-Indep"
+            else:
+                dep_type = "Build-Depends-Arch"
+            if dep_type not in source:
+                source[dep_type] = PackageRelation()
+            source[dep_type].extend(dep)
+
+    def write(self, packages, makefile):
+        self.write_control(packages.values())
+        self.write_makefile(makefile)
+
+    def write_control(self, list, name='debian/control'):
+        self.write_rfc822(codecs.open(name, 'w', 'utf-8'), list)
+
+    def write_makefile(self, makefile, name='debian/rules.gen'):
+        f = open(name, 'w')
+        makefile.write(f)
+        f.close()
+
+    def write_rfc822(self, f, list):
+        for entry in list:
+            for key, value in entry.items():
+                f.write(u"%s: %s\n" % (key, value))
+            f.write('\n')
+
+
+def merge_packages(packages, new, arch):
+    for new_package in new:
+        name = new_package['Package']
+        if name in packages:
+            package = packages.get(name)
+            package['Architecture'].add(arch)
+
+            for field in ('Depends', 'Provides', 'Suggests', 'Recommends',
+                          'Conflicts'):
+                if field in new_package:
+                    if field in package:
+                        v = package[field]
+                        v.extend(new_package[field])
+                    else:
+                        package[field] = new_package[field]
+
+        else:
+            new_package['Architecture'] = arch
+            packages.append(new_package)
diff --git a/debian/lib/python/debian_linux/kconfig.py b/debian/lib/python/debian_linux/kconfig.py
new file mode 100644
index 000000000..73d491d7f
--- /dev/null
+++ b/debian/lib/python/debian_linux/kconfig.py
@@ -0,0 +1,93 @@
+from collections import OrderedDict
+
+__all__ = (
+    "KconfigFile",
+)
+
+
+class KConfigEntry(object):
+    __slots__ = 'name', 'value', 'comments'
+
+    def __init__(self, name, value, comments=None):
+        self.name, self.value = name, value
+        self.comments = comments or []
+
+    def __eq__(self, other):
+        return self.name == other.name and self.value == other.value
+
+    def __hash__(self):
+        return hash(self.name) | hash(self.value)
+
+    def __repr__(self):
+        return ('<{}({!r}, {!r}, {!r})>'
+                .format(self.__class__.__name__, self.name, self.value,
+                        self.comments))
+
+    def __str__(self):
+        return 'CONFIG_{}={}'.format(self.name, self.value)
+
+    def write(self):
+        for comment in self.comments:
+            yield '#. ' + comment
+        yield str(self)
+
+
+class KConfigEntryTristate(KConfigEntry):
+    __slots__ = ()
+
+    VALUE_NO = False
+    VALUE_YES = True
+    VALUE_MOD = object()
+
+    def __init__(self, name, value, comments=None):
+        if value == 'n' or value is None:
+            value = self.VALUE_NO
+        elif value == 'y':
+            value = self.VALUE_YES
+        elif value == 'm':
+            value = self.VALUE_MOD
+        else:
+            raise NotImplementedError
+        super(KConfigEntryTristate, self).__init__(name, value, comments)
+
+    def __str__(self):
+        if self.value is self.VALUE_MOD:
+            return 'CONFIG_{}=m'.format(self.name)
+        if self.value:
+            return 'CONFIG_{}=y'.format(self.name)
+        return '# CONFIG_{} is not set'.format(self.name)
+
+
+class KconfigFile(OrderedDict):
+    def __str__(self):
+        ret = []
+        for i in self.str_iter():
+            ret.append(i)
+        return '\n'.join(ret) + '\n'
+
+    def read(self, f):
+        for line in iter(f.readlines()):
+            line = line.strip()
+            if line.startswith("CONFIG_"):
+                i = line.find('=')
+                option = line[7:i]
+                value = line[i + 1:]
+                self.set(option, value)
+            elif line.startswith("# CONFIG_"):
+                option = line[9:-11]
+                self.set(option, 'n')
+            elif line.startswith("#") or not line:
+                pass
+            else:
+                raise RuntimeError("Can't recognize %s" % line)
+
+    def set(self, key, value):
+        if value in ('y', 'm', 'n'):
+            entry = KConfigEntryTristate(key, value)
+        else:
+            entry = KConfigEntry(key, value)
+        self[key] = entry
+
+    def str_iter(self):
+        for key, value in self.items():
+            yield str(value)
diff --git a/debian/lib/python/debian_linux/utils.py b/debian/lib/python/debian_linux/utils.py
new file mode 100644
index 000000000..34c15536d
--- /dev/null
+++ b/debian/lib/python/debian_linux/utils.py
@@ -0,0 +1,97 @@
+import codecs
+import os
+import re
+import textwrap
+
+
+class Templates(object):
+    def __init__(self, dirs=["debian/templates"]):
+        self.dirs = dirs
+
+        self._cache = {}
+
+    def __getitem__(self, key):
+        ret = self.get(key)
+        if ret is not None:
+            return ret
+        raise KeyError(key)
+
+    def _read(self, name):
+        prefix, id = name.split('.', 1)
+
+        for suffix in ['.in', '']:
+            for dir in self.dirs:
+                filename = "%s/%s%s" % (dir, name, suffix)
+                if os.path.exists(filename):
+                    f = codecs.open(filename, 'r', 'utf-8')
+                    if prefix == 'control':
+                        return read_control(f)
+                    if prefix == 'tests-control':
+                        return read_tests_control(f)
+                    return f.read()
+
+    def get(self, key, default=None):
+        if key in self._cache:
+            return self._cache[key]
+
+        value = self._cache.setdefault(key, self._read(key))
+        if value is None:
+            return default
+        return value
+
+
+def read_control(f):
+    from .debian import Package
+    return _read_rfc822(f, Package)
+
+
+def read_tests_control(f):
+    from .debian import TestsControl
+    return _read_rfc822(f, TestsControl)
+
+
+def _read_rfc822(f, cls):
+    entries = []
+    eof = False
+
+    while not eof:
+        e = cls()
+        last = None
+        lines = []
+        while True:
+            line = f.readline()
+            if not line:
+                eof = True
+                break
+            # Strip comments rather than trying to preserve them
+            if line[0] == '#':
+                continue
+            line = line.strip('\n')
+            if not line:
+                break
+            if line[0] in ' \t':
+                if not last:
+                    raise ValueError(
+                        'Continuation line seen before first header')
+                lines.append(line.lstrip())
+                continue
+            if last:
+                e[last] = '\n'.join(lines)
+            i = line.find(':')
+            if i < 0:
+                raise ValueError(u"Not a header, not a continuation: ``%s''" %
+                                 line)
+            last = line[:i]
+            lines = [line[i + 1:].lstrip()]
+        if last:
+            e[last] = '\n'.join(lines)
+        if e:
+            entries.append(e)
+
+    return entries
+
+
+class TextWrapper(textwrap.TextWrapper):
+    wordsep_re = re.compile(
+        r'(\s+|'                                  # any whitespace
+        r'(?<=[\w\!\"\'\&\.\,\?])-{2,}(?=\w))')   # em-dash