Adding debian version 6.6.15-2.debian/6.6.15-2

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

9 files changed, 2272 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 0000000000..b785cebf71
--- /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 0000000000..abaaeeaa94
--- /dev/null
+++ b/debian/lib/python/debian_linux/abi.py
@@ -0,0 +1,45 @@
+class Symbol(object):
+    def __init__(self, name, namespace, module, version, export):
+        self.name, self.namespace, self.module = name, namespace, 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.namespace != other.namespace:
+            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, namespace = \
+                line.strip('\r\n').split('\t')
+            self[name] = Symbol(name, namespace, module, version, export)
+
+    def write(self, file):
+        for s in sorted(self.values(), key=lambda i: i.name):
+            file.write("%s\t%s\t%s\t%s\t%s\n" %
+                       (s.version, s.name, s.module, s.export, s.namespace))
diff --git a/debian/lib/python/debian_linux/config.py b/debian/lib/python/debian_linux/config.py
new file mode 100644
index 0000000000..7424c6278c
--- /dev/null
+++ b/debian/lib/python/debian_linux/config.py
@@ -0,0 +1,257 @@
+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():
+            value = value.replace('\n', ' ')
+            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 0000000000..78c5cdec7b
--- /dev/null
+++ b/debian/lib/python/debian_linux/debian.py
@@ -0,0 +1,705 @@
+from __future__ import annotations
+
+import collections
+import collections.abc
+import dataclasses
+import enum
+import itertools
+import os.path
+import re
+import typing
+import warnings
+from typing import (
+    Iterable,
+    Self,
+    TypeAlias,
+)
+
+
+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)*
+)
+[ ]{2}
+(?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) -> 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) -> None:
+        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):
+    revision: str | None
+
+    _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+.~]+$')
+
+    def __init__(self, version) -> None:
+        try:
+            split = version.index(':')
+        except ValueError:
+            epoch, rest = None, version
+        else:
+            epoch, rest = version[0:split], version[split+1:]
+        try:
+            split = rest.rindex('-')
+        except ValueError:
+            upstream, revision = rest, None
+        else:
+            upstream, revision = rest[0:split], rest[split+1:]
+        if (epoch is not None and not self._epoch_re.match(epoch)) or \
+           not self._upstream_re.match(upstream) or \
+           (revision is not None and not self._revision_re.match(revision)):
+            raise RuntimeError(u"Invalid debian version")
+        self.epoch = epoch and int(epoch)
+        self.upstream = upstream
+        self.revision = revision
+
+    def __str__(self) -> str:
+        return self.complete
+
+    @property
+    def complete(self) -> str:
+        if self.epoch is not None:
+            return u"%d:%s" % (self.epoch, self.complete_noepoch)
+        return self.complete_noepoch
+
+    @property
+    def complete_noepoch(self) -> str:
+        if self.revision is not None:
+            return u"%s-%s" % (self.upstream, self.revision)
+        return self.upstream
+
+    @property
+    def debian(self) -> str | None:
+        from warnings import warn
+        warn(u"debian argument was replaced by revision", DeprecationWarning,
+             stacklevel=2)
+        return self.revision
+
+
+class VersionLinux(Version):
+    _upstream_re = re.compile(r"""
+(?P<version>
+    \d+\.\d+
+)
+(?P<update>
+    (?:\.\d+)?
+    (?:-[a-z]+\d+)?
+)
+(?:
+    ~
+    (?P<modifier>
+        .+?
+    )
+)?
+(?:
+    \.dfsg\.
+    (?P<dfsg>
+        \d+
+    )
+)?
+$
+    """, 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) -> None:
+        super(VersionLinux, self).__init__(version)
+        up_match = self._upstream_re.match(self.upstream)
+        assert self.revision is not None
+        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 PackageArchitecture(set[str]):
+    def __init__(
+        self,
+        v: str | Iterable[str] | None = None,
+        /,
+    ) -> None:
+        if v:
+            if isinstance(v, str):
+                v = re.split(r'\s+', v.strip())
+            self |= frozenset(v)
+
+    def __str__(self) -> str:
+        return ' '.join(sorted(self))
+
+
+class PackageDescription:
+    short: list[str]
+    long: list[str]
+
+    def __init__(
+        self,
+        v: str | Self | None = None,
+        /,
+    ) -> None:
+        self.short = []
+        self.long = []
+
+        if v:
+            if isinstance(v, str):
+                desc_split = v.split('\n', 1)
+                self.append_short(desc_split[0])
+                if len(desc_split) == 2:
+                    self.append(desc_split[1])
+            else:
+                self.short.extend(v.short)
+                self.long.extend(v.long)
+
+    def __str__(self) -> str:
+        from .utils import TextWrapper
+        wrap = 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, long: str) -> None:
+        long = long.strip()
+        if long:
+            self.long.extend(long.split('\n.\n'))
+
+    def append_short(self, short: str) -> None:
+        for i in [i.strip() for i in short.split(',')]:
+            if i:
+                self.short.append(i)
+
+    def extend(self, desc: PackageDescription) -> None:
+        self.short.extend(desc.short)
+        self.long.extend(desc.long)
+
+
+class PackageRelationEntryOperator(enum.StrEnum):
+    OP_LT = '<<'
+    OP_LE = '<='
+    OP_EQ = '='
+    OP_NE = '!='
+    OP_GE = '>='
+    OP_GT = '>>'
+
+    def __neg__(self) -> PackageRelationEntryOperator:
+        return typing.cast(PackageRelationEntryOperator, {
+            self.OP_LT: self.OP_GE,
+            self.OP_LE: self.OP_GT,
+            self.OP_EQ: self.OP_NE,
+            self.OP_NE: self.OP_EQ,
+            self.OP_GE: self.OP_LT,
+            self.OP_GT: self.OP_LE,
+        }[self])
+
+
+class PackageRelationEntry:
+    name: str
+    operator: typing.Optional[PackageRelationEntryOperator]
+    version: typing.Optional[str]
+    arches: PackageArchitecture
+    restrictions: PackageBuildprofile
+
+    __re = re.compile(
+        r'^(?P<name>\S+)'
+        r'(?: \((?P<operator><<|<=|=|!=|>=|>>)\s*(?P<version>[^)]+)\))?'
+        r'(?: \[(?P<arches>[^]]+)\])?'
+        r'(?P<restrictions>(?: <[^>]+>)*)$'
+    )
+
+    def __init__(
+        self,
+        v: str | Self,
+        /, *,
+        name: str | None = None,
+        arches: set[str] | None = None,
+        restrictions: PackageBuildprofile | str | None = None,
+    ) -> None:
+        if isinstance(v, str):
+            match = self.__re.match(v)
+            if not match:
+                raise RuntimeError('Unable to parse dependency "%s"' % v)
+
+            self.name = name or match['name']
+
+            if operator := match['operator']:
+                self.operator = PackageRelationEntryOperator(operator)
+            else:
+                self.operator = None
+
+            self.version = match['version']
+            self.arches = PackageArchitecture(arches or match['arches'])
+            if isinstance(restrictions, PackageBuildprofile):
+                self.restrictions = restrictions.copy()
+            else:
+                self.restrictions = PackageBuildprofile.parse(
+                    restrictions or match['restrictions'],
+                )
+
+        else:
+            self.name = name or v.name
+            self.operator = v.operator
+            self.version = v.version
+            self.arches = PackageArchitecture(arches or v.arches)
+            if isinstance(restrictions, str):
+                self.restrictions = PackageBuildprofile.parse(restrictions)
+            else:
+                self.restrictions = (restrictions or v.restrictions).copy()
+
+    def __str__(self):
+        ret = [self.name]
+        if self.operator and self.version:
+            ret.append(f'({self.operator} {self.version})')
+        if self.arches:
+            ret.append(f'[{self.arches}]')
+        if self.restrictions:
+            ret.append(str(self.restrictions))
+        return ' '.join(ret)
+
+
+class PackageRelationGroup(list[PackageRelationEntry]):
+    def __init__(
+        self,
+        v: Iterable[PackageRelationEntry | str] | str | Self | None = None,
+        /, *,
+        arches: set[str] | None = None,
+    ) -> None:
+        if v:
+            if isinstance(v, str):
+                v = (i.strip() for i in re.split(r'\|', v.strip()))
+            self.extend(PackageRelationEntry(i, arches=arches) for i in v if i)
+
+    def __str__(self) -> str:
+        return ' | '.join(str(i) for i in self)
+
+    def _merge_eq(self, v: PackageRelationGroup) -> typing.Optional[PackageRelationGroup]:
+        if all(
+            (
+                i.name == j.name and i.operator == j.operator
+                and i.version == j.version
+            ) for i, j in zip(self, v)
+        ):
+            return self
+        return None
+
+
+class PackageRelation(list[PackageRelationGroup]):
+    Init: TypeAlias = PackageRelationGroup | Iterable[PackageRelationEntry] | str
+
+    def __init__(
+        self,
+        v: Iterable[Init] | str | Self | None = None,
+        /, *,
+        arches: set[str] | None = None,
+    ) -> None:
+        if v:
+            if isinstance(v, str):
+                v = (i.strip() for i in re.split(r',', v.strip()))
+            self.extend(PackageRelationGroup(i, arches=arches) for i in v if i)
+
+    def __str__(self) -> str:
+        return ', '.join(str(i) for i in self)
+
+    def _merge_eq(self, v: PackageRelationGroup) -> typing.Optional[PackageRelationGroup]:
+        for i in self:
+            if i._merge_eq(v):
+                return i
+        return None
+
+    def merge(
+        self,
+        v: Init | str,
+        /,
+    ) -> None:
+        v = PackageRelationGroup(v)
+        if g := self._merge_eq(v):
+            for i, j in zip(g, v):
+                i.arches |= j.arches
+                i.restrictions.update(j.restrictions)
+        else:
+            super().append(v)
+
+
+@dataclasses.dataclass
+class PackageBuildprofileEntry:
+    pos: set[str] = dataclasses.field(default_factory=set)
+    neg: set[str] = dataclasses.field(default_factory=set)
+
+    __re = re.compile(r'^<(?P<profiles>[a-z0-9. !-]+)>$')
+
+    def copy(self) -> Self:
+        return self.__class__(
+            pos=set(self.pos),
+            neg=set(self.neg),
+        )
+
+    @classmethod
+    def parse(cls, v: str, /) -> Self:
+        match = cls.__re.match(v)
+        if not match:
+            raise RuntimeError('Unable to parse build profile "%s"' % v)
+
+        ret = cls()
+        for i in re.split(r' ', match.group('profiles')):
+            if i:
+                if i[0] == '!':
+                    ret.neg.add(i[1:])
+                else:
+                    ret.pos.add(i)
+        return ret
+
+    def __eq__(self, other: object, /) -> bool:
+        if not isinstance(other, PackageBuildprofileEntry):
+            return NotImplemented
+        return self.pos == other.pos and self.neg == other.neg
+
+    def isdisjoint(self, other: Self, /) -> bool:
+        return not (self.issubset(other)) and not (self.issuperset(other))
+
+    def issubset(self, other: Self, /) -> bool:
+        '''
+        Test wether this build profile would select a subset of packages.
+
+        For positive profile matches: Ading profiles will select a subset.
+        For negative profile matches: Removing profiles will select a subset.
+        '''
+        return self.pos >= other.pos and self.neg <= other.neg
+    __le__ = issubset
+
+    def issuperset(self, other: Self, /) -> bool:
+        '''
+        Test wether this build profile would select a superset of packages.
+
+        For positive profile matches: Removing profiles will select a superset.
+        For negative profile matches: Adding profiles will select a superset.
+        '''
+        return self.pos <= other.pos and self.neg >= other.neg
+    __ge__ = issuperset
+
+    def update(self, other: Self, /) -> None:
+        '''
+        Update the build profiles, adding entries from other, merging if possible.
+
+        Negating entries (profile vs !profile) are completely removed.
+        All others remain if they are used on both sides.
+        '''
+        diff = (self.pos & other.neg) | (self.neg & other.pos)
+        self.pos &= other.pos - diff
+        self.neg &= other.neg - diff
+    __ior__ = update
+
+    def __str__(self) -> str:
+        s = ' '.join(itertools.chain(
+            sorted(self.pos),
+            (f'!{i}' for i in sorted(self.neg)),
+        ))
+        return f'<{s}>'
+
+
+class PackageBuildprofile(list[PackageBuildprofileEntry]):
+    __re = re.compile(r' *(<[^>]+>)(?: +|$)')
+
+    def copy(self) -> Self:
+        return self.__class__(i.copy() for i in self)
+
+    @classmethod
+    def parse(cls, v: str, /) -> Self:
+        ret = cls()
+        for match in cls.__re.finditer(v):
+            ret.append(PackageBuildprofileEntry.parse(match.group(1)))
+        return ret
+
+    def update(self, v: Self, /) -> None:
+        for i in v:
+            for j in self:
+                if not j.isdisjoint(i):
+                    j.update(i)
+                    break
+            else:
+                self.append(i)
+    __ior__ = update
+
+    def __str__(self) -> str:
+        return ' '.join(str(i) for i in self)
+
+
+class _ControlFileDict(collections.abc.MutableMapping):
+    def __init__(self):
+        self.__data = {}
+        self.meta = {}
+
+    def __getitem__(self, key):
+        return self.__data[key]
+
+    def __setitem__(self, key, value):
+        if key.lower().startswith('meta-'):
+            self.meta[key.lower()[5:]] = value
+            return
+
+        try:
+            cls = self._fields[key]
+            if not isinstance(value, cls):
+                if f := getattr(cls, 'parse', None):
+                    value = f(value)
+                else:
+                    value = cls(value)
+        except KeyError:
+            warnings.warn(
+                f'setting unknown field { key } in { type(self).__name__ }',
+                stacklevel=2)
+        self.__data[key] = value
+
+    def __delitem__(self, key):
+        del self.__data[key]
+
+    def __iter__(self):
+        keys = set(self.__data.keys())
+        for key in self._fields.keys():
+            if key in self.__data:
+                keys.remove(key)
+                yield key
+        for key in sorted(keys):
+            yield key
+
+    def __len__(self):
+        return len(self.__data)
+
+    def setdefault(self, key):
+        try:
+            return self[key]
+        except KeyError:
+            try:
+                ret = self[key] = self._fields[key]()
+            except KeyError:
+                warnings.warn(
+                    f'setting unknown field { key } in { type(self).__name__ }',
+                    stacklevel=2)
+                ret = self[key] = ''
+            return ret
+
+    def copy(self):
+        ret = self.__class__()
+        ret.__data = self.__data.copy()
+        ret.meta = self.meta.copy()
+        return ret
+
+    @classmethod
+    def read_rfc822(cls, f):
+        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 SourcePackage(_ControlFileDict):
+    _fields = collections.OrderedDict((
+        ('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),
+        ('Rules-Requires-Root', str),
+        ('Homepage', str),
+        ('Vcs-Browser', str),
+        ('Vcs-Git', str),
+        ('XS-Autobuild', str),
+    ))
+
+
+class BinaryPackage(_ControlFileDict):
+    _fields = collections.OrderedDict((
+        ('Package', str),
+        ('Package-Type', str),  # for udeb only
+        ('Architecture', PackageArchitecture),
+        ('Section', str),
+        ('Priority', str),
+        # Build-Depends* fields aren't allowed for binary packages in
+        # the real control file, but we move them to the source
+        # package
+        ('Build-Depends', PackageRelation),
+        ('Build-Depends-Arch', PackageRelation),
+        ('Build-Depends-Indep', PackageRelation),
+        ('Build-Profiles', PackageBuildprofile),
+        ('Built-Using', PackageRelation),
+        ('Provides', PackageRelation),
+        ('Pre-Depends', PackageRelation),
+        ('Depends', PackageRelation),
+        ('Recommends', PackageRelation),
+        ('Suggests', PackageRelation),
+        ('Replaces', PackageRelation),
+        ('Breaks', PackageRelation),
+        ('Conflicts', PackageRelation),
+        ('Multi-Arch', str),
+        ('Kernel-Version', str),  # for udeb only
+        ('Description', PackageDescription),
+        ('Homepage', str),
+    ))
+
+
+class TestsControl(_ControlFileDict):
+    _fields = collections.OrderedDict((
+        ('Tests', str),
+        ('Test-Command', str),
+        ('Architecture', PackageArchitecture),
+        ('Restrictions', str),
+        ('Features', str),
+        ('Depends', PackageRelation),
+        ('Tests-Directory', str),
+        ('Classes', str),
+    ))
diff --git a/debian/lib/python/debian_linux/firmware.py b/debian/lib/python/debian_linux/firmware.py
new file mode 100644
index 0000000000..b1a4a7e85d
--- /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) -> None:
+        self.binary = binary
+        self.desc = desc
+        self.source = source
+        self.version = version
+
+
+class FirmwareSection(object):
+    def __init__(self, driver, files, licence) -> None:
+        self.driver = driver
+        self.files = files
+        self.licence = licence
+
+
+class FirmwareWhence(list):
+    def __init__(self, file) -> None:
+        self.read(file)
+
+    def read(self, file) -> None:
+        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 0000000000..66769a0639
--- /dev/null
+++ b/debian/lib/python/debian_linux/gencontrol.py
@@ -0,0 +1,581 @@
+from __future__ import annotations
+
+import contextlib
+import pathlib
+import re
+from collections import OrderedDict
+from collections.abc import (
+    Generator,
+)
+from typing import (
+    Any,
+    Iterable,
+    Iterator,
+    IO,
+)
+
+from .debian import Changelog, PackageArchitecture, \
+    Version, _ControlFileDict
+from .utils import Templates
+
+
+class PackagesList(OrderedDict):
+    def append(self, package) -> None:
+        self[package['Package']] = package
+
+    def extend(self, packages) -> None:
+        for package in packages:
+            self[package['Package']] = package
+
+    def setdefault(self, package) -> Any:
+        return super().setdefault(package['Package'], package)
+
+
+class Makefile:
+    rules: dict[str, MakefileRule]
+
+    def __init__(self) -> None:
+        self.rules = {}
+
+    def add_cmds(self, name: str, cmds) -> None:
+        rule = self.rules.setdefault(name, MakefileRule(name))
+        rule.add_cmds(MakefileRuleCmdsSimple(cmds))
+
+    def add_deps(self, name: str, deps) -> None:
+        rule = self.rules.setdefault(name, MakefileRule(name))
+        rule.add_deps(deps)
+
+        for i in deps:
+            self.rules.setdefault(i, MakefileRule(i))
+
+    def add_rules(self, name: str, target, makeflags, packages=set(), packages_extra=set()) -> None:
+        rule = self.rules.setdefault(name, MakefileRule(name))
+        rule.add_cmds(MakefileRuleCmdsRules(target, makeflags, packages, packages_extra))
+
+    def write(self, out) -> None:
+        out.write('''\
+.NOTPARALLEL:
+.PHONY:
+packages_enabled := $(shell dh_listpackages)
+define if_package
+$(if $(filter $(1),$(packages_enabled)),$(2))
+endef
+''')
+        for k, rule in sorted(self.rules.items()):
+            rule.write(out)
+
+
+class MakefileRule:
+    name: str
+    cmds: list[MakefileRuleCmds]
+    deps: set[str]
+
+    def __init__(self, name: str) -> None:
+        self.name = name
+        self.cmds = []
+        self.deps = set()
+
+    def add_cmds(self, cmds: MakefileRuleCmds) -> None:
+        self.cmds.append(cmds)
+
+    def add_deps(self, deps: Iterable[str]) -> None:
+        self.deps.update(deps)
+
+    def write(self, out: IO) -> None:
+        if self.cmds:
+            out.write(f'{self.name}:{" ".join(sorted(self.deps))}\n')
+            for c in self.cmds:
+                c.write(out)
+        else:
+            out.write(f'{self.name}:{" ".join(sorted(self.deps))}\n')
+
+
+class MakefileRuleCmds:
+    def write(self, out: IO) -> None:
+        raise NotImplementedError
+
+
+class MakefileRuleCmdsRules(MakefileRuleCmds):
+    def __init__(self, target, makeflags, packages, packages_extra) -> None:
+        self.target = target
+        self.makeflags = makeflags.copy()
+        self.packages = packages
+        self.packages_extra = packages_extra
+
+        packages_all = packages | packages_extra
+
+        if packages_all:
+            if len(packages_all) == 1:
+                package_name = list(packages_all)[0]
+                self.makeflags['PACKAGE_NAME'] = package_name
+                self.makeflags['DESTDIR'] = f'$(CURDIR)/debian/{package_name}'
+            else:
+                self.makeflags['DESTDIR'] = '$(CURDIR)/debian/tmp'
+
+            self.makeflags['DH_OPTIONS'] = ' '.join(f'-p{i}' for i in sorted(packages_all))
+
+    def write(self, out: IO) -> None:
+        cmd = f'$(MAKE) -f debian/rules.real {self.target} {self.makeflags}'
+        if self.packages:
+            out.write(f'\t$(call if_package, {" ".join(sorted(self.packages))}, {cmd})\n')
+        else:
+            out.write(f'\t{cmd}\n')
+
+
+class MakefileRuleCmdsSimple(MakefileRuleCmds):
+    cmds: list[str]
+
+    def __init__(self, cmds: list[str]) -> None:
+        self.cmds = cmds
+
+    def write(self, out: IO) -> None:
+        for i in self.cmds:
+            out.write(f'\t{i}\n')
+
+
+class MakeFlags(dict):
+    def __str__(self) -> str:
+        return ' '.join("%s='%s'" % i for i in sorted(self.items()))
+
+    def copy(self) -> MakeFlags:
+        return self.__class__(super(MakeFlags, self).copy())
+
+
+class PackagesBundle:
+    name: str | None
+    templates: Templates
+    base: pathlib.Path
+    makefile: Makefile
+    packages: PackagesList
+
+    def __init__(
+            self,
+            name: str | None,
+            templates: Templates,
+            base: pathlib.Path = pathlib.Path('debian'),
+    ) -> None:
+        self.name = name
+        self.templates = templates
+        self.base = base
+        self.makefile = Makefile()
+        self.packages = PackagesList()
+
+    def add(
+            self,
+            pkgid: str,
+            ruleid: Iterable[str],
+            makeflags: MakeFlags,
+            replace: dict[str, str],
+            *,
+            arch: str | None = None,
+            check_packages: bool = True,
+    ) -> list[Any]:
+        ret = []
+        for raw_package in self.templates.get_control(f'{pkgid}.control', replace):
+            package = self.packages.setdefault(raw_package)
+            package_name = package['Package']
+            ret.append(package)
+
+            package.meta.setdefault('rules-ruleids', {})[ruleid] = makeflags
+            if arch:
+                package.meta.setdefault('architectures', PackageArchitecture()).add(arch)
+            package.meta['rules-check-packages'] = check_packages
+
+            for name in (
+                    'NEWS',
+                    'bug-presubj',
+                    'lintian-overrides',
+                    'maintscript',
+                    'postinst',
+                    'postrm',
+                    'preinst',
+                    'prerm',
+            ):
+                try:
+                    template = self.templates.get(f'{pkgid}.{name}',
+                                                  replace | {'package': package_name})
+                except KeyError:
+                    pass
+                else:
+                    with self.open(f'{package_name}.{name}') as f:
+                        f.write(template)
+
+        return ret
+
+    def add_packages(
+            self,
+            packages: Iterable[_ControlFileDict],
+            ruleid: Iterable[str],
+            makeflags: MakeFlags,
+            *,
+            arch: str | None = None,
+            check_packages: bool = True,
+    ) -> None:
+        for package in packages:
+            package = self.packages.setdefault(package)
+            package.meta.setdefault('rules-ruleids', {})[ruleid] = makeflags
+            if arch:
+                package.meta.setdefault('architectures', PackageArchitecture()).add(arch)
+            package.meta['rules-check-packages'] = check_packages
+
+    def path(self, name) -> pathlib.Path:
+        if self.name:
+            return self.base / f'generated.{self.name}/{name}'
+        return self.base / name
+
+    @staticmethod
+    def __ruleid_deps(ruleid: tuple[str], name: str) -> Iterator[tuple[str, str]]:
+        """
+        Generate all the rules dependencies.
+        ```
+        build: build_a
+        build_a: build_a_b
+        build_a_b: build_a_b_image
+        ```
+        """
+        r = ruleid + (name, )
+        yield (
+            '',
+            '_' + '_'.join(r[:1]),
+        )
+        for i in range(1, len(r)):
+            yield (
+                '_' + '_'.join(r[:i]),
+                '_' + '_'.join(r[:i + 1]),
+            )
+
+    @contextlib.contextmanager
+    def open(self, name: str, mode: str = 'w') -> Generator[IO, None, None]:
+        path = self.path(name)
+        path.parent.mkdir(parents=True, exist_ok=True)
+        with path.open(mode=mode, encoding='utf-8') as f:
+            yield f
+
+    def extract_makefile(self) -> None:
+        targets: dict[frozenset[str], dict] = {}
+
+        for package_name, package in self.packages.items():
+            target_name = package.meta.get('rules-target')
+            ruleids = package.meta.get('rules-ruleids')
+            makeflags = MakeFlags({
+                # Requires Python 3.9+
+                k.removeprefix('rules-makeflags-').upper(): v
+                for (k, v) in package.meta.items() if k.startswith('rules-makeflags-')
+            })
+
+            if ruleids:
+                arches = package.meta.get('architectures')
+                if arches:
+                    package['Architecture'] = arches
+                else:
+                    arches = package.get('Architecture')
+
+                if target_name:
+                    for ruleid, makeflags_package in ruleids.items():
+                        target_key = frozenset(
+                            [target_name, ruleid]
+                            + [f'{k}_{v}' for (k, v) in makeflags.items()]
+                        )
+                        target = targets.setdefault(
+                            target_key,
+                            {
+                                'name': target_name,
+                                'ruleid': ruleid,
+                            },
+                        )
+
+                        if package.meta['rules-check-packages']:
+                            target.setdefault('packages', set()).add(package_name)
+                        else:
+                            target.setdefault('packages_extra', set()).add(package_name)
+                        makeflags_package = makeflags_package.copy()
+                        makeflags_package.update(makeflags)
+                        target['makeflags'] = makeflags_package
+
+                        if arches == set(['all']):
+                            target['type'] = 'indep'
+                        else:
+                            target['type'] = 'arch'
+
+        for target in targets.values():
+            name = target['name']
+            ruleid = target['ruleid']
+            packages = target.get('packages', set())
+            packages_extra = target.get('packages_extra', set())
+            makeflags = target['makeflags']
+            ttype = target['type']
+
+            rule = '_'.join(ruleid + (name, ))
+            self.makefile.add_rules(f'setup_{rule}',
+                                    f'setup_{name}', makeflags, packages, packages_extra)
+            self.makefile.add_rules(f'build-{ttype}_{rule}',
+                                    f'build_{name}', makeflags, packages, packages_extra)
+            self.makefile.add_rules(f'binary-{ttype}_{rule}',
+                                    f'binary_{name}', makeflags, packages, packages_extra)
+
+            for i, j in self.__ruleid_deps(ruleid, name):
+                self.makefile.add_deps(f'setup{i}',
+                                       [f'setup{j}'])
+                self.makefile.add_deps(f'build-{ttype}{i}',
+                                       [f'build-{ttype}{j}'])
+                self.makefile.add_deps(f'binary-{ttype}{i}',
+                                       [f'binary-{ttype}{j}'])
+
+    def merge_build_depends(self) -> None:
+        # Merge Build-Depends pseudo-fields from binary packages into the
+        # source package
+        source = self.packages["source"]
+        arch_all = PackageArchitecture("all")
+        for name, package in self.packages.items():
+            if name == "source":
+                continue
+            dep = package.get("Build-Depends")
+            if not dep:
+                continue
+            del package["Build-Depends"]
+            if package["Architecture"] == arch_all:
+                dep_type = "Build-Depends-Indep"
+            else:
+                dep_type = "Build-Depends-Arch"
+            for group in dep:
+                for item in group:
+                    if package["Architecture"] != arch_all and not item.arches:
+                        item.arches = package["Architecture"]
+                    if package.get("Build-Profiles") and not item.restrictions:
+                        item.restrictions = package["Build-Profiles"]
+                source.setdefault(dep_type).merge(group)
+
+    def write(self) -> None:
+        self.write_control()
+        self.write_makefile()
+
+    def write_control(self) -> None:
+        with self.open('control') as f:
+            self.write_rfc822(f, self.packages.values())
+
+    def write_makefile(self) -> None:
+        with self.open('rules.gen') as f:
+            self.makefile.write(f)
+
+    def write_rfc822(self, f: IO, entries: Iterable) -> None:
+        for entry in entries:
+            for key, value in entry.items():
+                if value:
+                    f.write(u"%s: %s\n" % (key, value))
+            f.write('\n')
+
+
+def iter_featuresets(config) -> Iterable[str]:
+    for featureset in config['base', ]['featuresets']:
+        if config.merge('base', None, featureset).get('enabled', True):
+            yield featureset
+
+
+def iter_arches(config) -> Iterable[str]:
+    return iter(config['base', ]['arches'])
+
+
+def iter_arch_featuresets(config, arch) -> Iterable[str]:
+    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) -> Iterable[str]:
+    return iter(config['base', arch, featureset]['flavours'])
+
+
+class Gencontrol(object):
+    vars: dict[str, str]
+    bundles: dict[str, PackagesBundle]
+
+    def __init__(self, config, templates, version=Version) -> None:
+        self.config, self.templates = config, templates
+        self.changelog = Changelog(version=version)
+        self.vars = {}
+        self.bundles = {'': PackagesBundle(None, templates)}
+
+    @property
+    def bundle(self) -> PackagesBundle:
+        return self.bundles['']
+
+    def __call__(self) -> None:
+        self.do_source()
+        self.do_main()
+        self.do_extra()
+
+        self.write()
+
+    def do_source(self) -> None:
+        source = self.templates.get_source_control("source.control", self.vars)[0]
+        if not source.get('Source'):
+            source['Source'] = self.changelog[0].source
+        self.bundle.packages['source'] = source
+
+    def do_main(self) -> None:
+        vars = self.vars.copy()
+
+        makeflags = MakeFlags()
+
+        self.do_main_setup(vars, makeflags)
+        self.do_main_makefile(makeflags)
+        self.do_main_packages(vars, makeflags)
+        self.do_main_recurse(vars, makeflags)
+
+    def do_main_setup(self, vars, makeflags) -> None:
+        pass
+
+    def do_main_makefile(self, makeflags) -> None:
+        pass
+
+    def do_main_packages(self, vars, makeflags) -> None:
+        pass
+
+    def do_main_recurse(self, vars, makeflags) -> None:
+        for featureset in iter_featuresets(self.config):
+            self.do_indep_featureset(featureset,
+                                     vars.copy(), makeflags.copy())
+        for arch in iter_arches(self.config):
+            self.do_arch(arch, vars.copy(),
+                         makeflags.copy())
+
+    def do_extra(self) -> None:
+        try:
+            packages_extra = self.templates.get_control("extra.control", self.vars)
+        except KeyError:
+            return
+
+        extra_arches: dict[str, Any] = {}
+        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()):
+            self.bundle.add_packages(packages_extra, (arch, ),
+                                     MakeFlags(), check_packages=False)
+
+    def do_indep_featureset(self, featureset, vars, makeflags) -> None:
+        vars['localversion'] = ''
+        if featureset != 'none':
+            vars['localversion'] = '-' + featureset
+
+        self.do_indep_featureset_setup(vars, makeflags, featureset)
+        self.do_indep_featureset_makefile(featureset, makeflags)
+        self.do_indep_featureset_packages(featureset,
+                                          vars, makeflags)
+
+    def do_indep_featureset_setup(self, vars, makeflags, featureset) -> None:
+        pass
+
+    def do_indep_featureset_makefile(self, featureset, makeflags) -> None:
+        makeflags['FEATURESET'] = featureset
+
+    def do_indep_featureset_packages(self, featureset, vars, makeflags) -> None:
+        pass
+
+    def do_arch(self, arch, vars, makeflags) -> None:
+        vars['arch'] = arch
+
+        self.do_arch_setup(vars, makeflags, arch)
+        self.do_arch_makefile(arch, makeflags)
+        self.do_arch_packages(arch, vars, makeflags)
+        self.do_arch_recurse(arch, vars, makeflags)
+
+    def do_arch_setup(self, vars, makeflags, arch) -> None:
+        pass
+
+    def do_arch_makefile(self, arch, makeflags) -> None:
+        makeflags['ARCH'] = arch
+
+    def do_arch_packages(self, arch, vars, makeflags) -> None:
+        pass
+
+    def do_arch_recurse(self, arch, vars, makeflags) -> None:
+        for featureset in iter_arch_featuresets(self.config, arch):
+            self.do_featureset(arch, featureset,
+                               vars.copy(), makeflags.copy())
+
+    def do_featureset(self, arch, featureset, vars, makeflags) -> None:
+        vars['localversion'] = ''
+        if featureset != 'none':
+            vars['localversion'] = '-' + featureset
+
+        self.do_featureset_setup(vars, makeflags, arch, featureset)
+        self.do_featureset_makefile(arch, featureset, makeflags)
+        self.do_featureset_packages(arch, featureset, vars, makeflags)
+        self.do_featureset_recurse(arch, featureset, vars, makeflags)
+
+    def do_featureset_setup(self, vars, makeflags, arch, featureset) -> None:
+        pass
+
+    def do_featureset_makefile(self, arch, featureset, makeflags) -> None:
+        makeflags['FEATURESET'] = featureset
+
+    def do_featureset_packages(self, arch, featureset, vars, makeflags) -> None:
+        pass
+
+    def do_featureset_recurse(self, arch, featureset, vars, makeflags) -> None:
+        for flavour in iter_flavours(self.config, arch, featureset):
+            self.do_flavour(arch, featureset, flavour,
+                            vars.copy(), makeflags.copy())
+
+    def do_flavour(self, arch, featureset, flavour, vars,
+                   makeflags):
+        vars['localversion'] += '-' + flavour
+
+        self.do_flavour_setup(vars, makeflags, arch, featureset, flavour)
+        self.do_flavour_makefile(arch, featureset, flavour, makeflags)
+        self.do_flavour_packages(arch, featureset, flavour,
+                                 vars, makeflags)
+
+    def do_flavour_setup(self, vars, makeflags, arch, featureset, flavour) -> None:
+        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, arch, featureset, flavour, makeflags) -> None:
+        makeflags['FLAVOUR'] = flavour
+
+    def do_flavour_packages(self, arch, featureset, flavour, vars, makeflags) -> None:
+        pass
+
+    def substitute(self, s: str | list | tuple, vars) -> str | list:
+        if isinstance(s, (list, tuple)):
+            return [self.substitute(i, vars) for i in s]
+
+        def subst(match) -> str:
+            return vars[match.group(1)]
+
+        return re.sub(r'@([-_a-z0-9]+)@', subst, str(s))
+
+    def write(self) -> None:
+        for bundle in self.bundles.values():
+            bundle.extract_makefile()
+            bundle.merge_build_depends()
+            bundle.write()
+
+
+def merge_packages(packages, new, arch) -> None:
+    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 0000000000..291ccd8439
--- /dev/null
+++ b/debian/lib/python/debian_linux/kconfig.py
@@ -0,0 +1,93 @@
+from typing import Iterable
+from collections import OrderedDict
+
+__all__ = (
+    "KconfigFile",
+)
+
+
+class KConfigEntry(object):
+    __slots__ = 'name', 'value', 'comments'
+
+    def __init__(self, name, value, comments=None) -> None:
+        self.name, self.value = name, value
+        self.comments = comments or []
+
+    def __eq__(self, other) -> bool:
+        return self.name == other.name and self.value == other.value
+
+    def __hash__(self) -> int:
+        return hash(self.name) | hash(self.value)
+
+    def __repr__(self) -> str:
+        return ('<{}({!r}, {!r}, {!r})>'
+                .format(self.__class__.__name__, self.name, self.value,
+                        self.comments))
+
+    def __str__(self) -> str:
+        return 'CONFIG_{}={}'.format(self.name, self.value)
+
+    def write(self) -> Iterable[str]:
+        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) -> 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) -> str:
+        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[str, KConfigEntry]):
+    def __str__(self) -> str:
+        ret = []
+        for i in self.str_iter():
+            ret.append(i)
+        return '\n'.join(ret) + '\n'
+
+    def read(self, f) -> None:
+        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) -> None:
+        if value in ('y', 'm', 'n'):
+            self[key] = KConfigEntryTristate(key, value)
+        else:
+            self[key] = KConfigEntry(key, value)
+
+    def str_iter(self) -> Iterable[str]:
+        for key, value in self.items():
+            yield str(value)
diff --git a/debian/lib/python/debian_linux/test_debian.py b/debian/lib/python/debian_linux/test_debian.py
new file mode 100644
index 0000000000..06133dc46e
--- /dev/null
+++ b/debian/lib/python/debian_linux/test_debian.py
@@ -0,0 +1,424 @@
+import pytest
+
+from .debian import (
+    Version,
+    VersionLinux,
+    PackageArchitecture,
+    PackageDescription,
+    PackageRelationEntry,
+    PackageRelationGroup,
+    PackageRelation,
+    PackageBuildprofileEntry,
+    PackageBuildprofile,
+)
+
+
+class TestVersion:
+    def test_native(self) -> None:
+        v = Version('1.2+c~4')
+        assert v.epoch is None
+        assert v.upstream == '1.2+c~4'
+        assert v.revision is None
+        assert v.complete == '1.2+c~4'
+        assert v.complete_noepoch == '1.2+c~4'
+
+    def test_nonnative(self) -> None:
+        v = Version('1-2+d~3')
+        assert v.epoch is None
+        assert v.upstream == '1'
+        assert v.revision == '2+d~3'
+        assert v.complete == '1-2+d~3'
+        assert v.complete_noepoch == '1-2+d~3'
+
+    def test_native_epoch(self) -> None:
+        v = Version('5:1.2.3')
+        assert v.epoch == 5
+        assert v.upstream == '1.2.3'
+        assert v.revision is None
+        assert v.complete == '5:1.2.3'
+        assert v.complete_noepoch == '1.2.3'
+
+    def test_nonnative_epoch(self) -> None:
+        v = Version('5:1.2.3-4')
+        assert v.epoch == 5
+        assert v.upstream == '1.2.3'
+        assert v.revision == '4'
+        assert v.complete == '5:1.2.3-4'
+        assert v.complete_noepoch == '1.2.3-4'
+
+    def test_multi_hyphen(self) -> None:
+        v = Version('1-2-3')
+        assert v.epoch is None
+        assert v.upstream == '1-2'
+        assert v.revision == '3'
+        assert v.complete == '1-2-3'
+
+    def test_multi_colon(self) -> None:
+        v = Version('1:2:3')
+        assert v.epoch == 1
+        assert v.upstream == '2:3'
+        assert v.revision is None
+
+    def test_invalid_epoch(self) -> None:
+        with pytest.raises(RuntimeError):
+            Version('a:1')
+        with pytest.raises(RuntimeError):
+            Version('-1:1')
+        with pytest.raises(RuntimeError):
+            Version('1a:1')
+
+    def test_invalid_upstream(self) -> None:
+        with pytest.raises(RuntimeError):
+            Version('1_2')
+        with pytest.raises(RuntimeError):
+            Version('1/2')
+        with pytest.raises(RuntimeError):
+            Version('a1')
+        with pytest.raises(RuntimeError):
+            Version('1 2')
+
+    def test_invalid_revision(self) -> None:
+        with pytest.raises(RuntimeError):
+            Version('1-2_3')
+        with pytest.raises(RuntimeError):
+            Version('1-2/3')
+        with pytest.raises(RuntimeError):
+            Version('1-2:3')
+
+
+class TestVersionLinux:
+    def test_stable(self) -> None:
+        v = VersionLinux('1.2.3-4')
+        assert v.linux_version == '1.2'
+        assert v.linux_upstream == '1.2'
+        assert v.linux_upstream_full == '1.2.3'
+        assert v.linux_modifier is None
+        assert v.linux_dfsg is None
+        assert not v.linux_revision_experimental
+        assert not v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_rc(self) -> None:
+        v = VersionLinux('1.2~rc3-4')
+        assert v.linux_version == '1.2'
+        assert v.linux_upstream == '1.2-rc3'
+        assert v.linux_upstream_full == '1.2-rc3'
+        assert v.linux_modifier == 'rc3'
+        assert v.linux_dfsg is None
+        assert not v.linux_revision_experimental
+        assert not v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_dfsg(self) -> None:
+        v = VersionLinux('1.2~rc3.dfsg.1-4')
+        assert v.linux_version == '1.2'
+        assert v.linux_upstream == '1.2-rc3'
+        assert v.linux_upstream_full == '1.2-rc3'
+        assert v.linux_modifier == 'rc3'
+        assert v.linux_dfsg == '1'
+        assert not v.linux_revision_experimental
+        assert not v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_experimental(self) -> None:
+        v = VersionLinux('1.2~rc3-4~exp5')
+        assert v.linux_upstream_full == '1.2-rc3'
+        assert v.linux_revision_experimental
+        assert not v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_security(self) -> None:
+        v = VersionLinux('1.2.3-4+deb10u1')
+        assert v.linux_upstream_full == '1.2.3'
+        assert not v.linux_revision_experimental
+        assert v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_backports(self) -> None:
+        v = VersionLinux('1.2.3-4~bpo9+10')
+        assert v.linux_upstream_full == '1.2.3'
+        assert not v.linux_revision_experimental
+        assert not v.linux_revision_security
+        assert v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_security_backports(self) -> None:
+        v = VersionLinux('1.2.3-4+deb10u1~bpo9+10')
+        assert v.linux_upstream_full == '1.2.3'
+        assert not v.linux_revision_experimental
+        assert v.linux_revision_security
+        assert v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_lts_backports(self) -> None:
+        # 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')
+        assert v.linux_upstream_full == '1.2.3'
+        assert not v.linux_revision_experimental
+        assert v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_lts_backports_2(self) -> None:
+        # Same but with two security extensions in the revision.
+        v = VersionLinux('1.2.3-4+deb10u1~deb9u10')
+        assert v.linux_upstream_full == '1.2.3'
+        assert not v.linux_revision_experimental
+        assert v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_binnmu(self) -> None:
+        v = VersionLinux('1.2.3-4+b1')
+        assert not v.linux_revision_experimental
+        assert not v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert not v.linux_revision_other
+
+    def test_other_revision(self) -> None:
+        v = VersionLinux('4.16.5-1+revert+crng+ready')  # from #898087
+        assert not v.linux_revision_experimental
+        assert not v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert v.linux_revision_other
+
+    def test_other_revision_binnmu(self) -> None:
+        v = VersionLinux('4.16.5-1+revert+crng+ready+b1')
+        assert not v.linux_revision_experimental
+        assert not v.linux_revision_security
+        assert not v.linux_revision_backports
+        assert v.linux_revision_other
+
+
+class TestPackageArchitecture:
+    def test_init(self) -> None:
+        a = PackageArchitecture()
+        assert a == set()
+
+    def test_init_str(self) -> None:
+        a = PackageArchitecture(' foo  bar\tbaz ')
+        assert a == {'foo', 'bar', 'baz'}
+
+    def test_init_iter(self) -> None:
+        a = PackageArchitecture(('foo', 'bar'))
+        assert a == {'foo', 'bar'}
+
+    def test_init_self(self) -> None:
+        a = PackageArchitecture(PackageArchitecture(('foo', 'bar')))
+        assert a == {'foo', 'bar'}
+
+    def test_str(self) -> None:
+        a = PackageArchitecture(('foo', 'bar'))
+        assert str(a) == 'bar foo'
+
+
+class TestPackageDescription:
+    def test_init(self) -> None:
+        a = PackageDescription()
+        assert a.short == []
+        assert a.long == []
+
+    def test_init_str(self) -> None:
+        a = PackageDescription('Short\nLong1\n.\nLong2')
+        assert a.short == ['Short']
+        assert a.long == ['Long1', 'Long2']
+
+    def test_init_self(self) -> None:
+        a = PackageDescription(PackageDescription('Short\nLong1\n.\nLong2'))
+        assert a.short == ['Short']
+        assert a.long == ['Long1', 'Long2']
+
+    def test_str(self) -> None:
+        a = PackageDescription('Short\nLong1\n.\nLong2')
+        assert str(a) == 'Short\n Long1\n .\n Long2'
+
+
+class TestPackageRelationEntry:
+    def test_init_str(self) -> None:
+        a = PackageRelationEntry('package (>=version) [arch2 arch1] <profile1 >')
+        assert a.name == 'package'
+        assert a.version == 'version'
+        assert a.arches == {'arch1', 'arch2'}
+        # TODO: assert a.profiles
+        assert str(a) == 'package (>= version) [arch1 arch2] <profile1>'
+
+    def test_init_self(self) -> None:
+        a = PackageRelationEntry(PackageRelationEntry('package [arch2 arch1]'))
+        assert a.name == 'package'
+        assert a.arches == {'arch1', 'arch2'}
+        assert str(a) == 'package [arch1 arch2]'
+
+
+class TestPackageRelationGroup:
+    def test_init(self) -> None:
+        a = PackageRelationGroup()
+        assert a == []
+
+    def test_init_str(self) -> None:
+        a = PackageRelationGroup('foo | bar')
+        assert len(a) == 2
+        assert a[0].name == 'foo'
+        assert a[1].name == 'bar'
+
+    def test_init_iter_entry(self) -> None:
+        a = PackageRelationGroup((PackageRelationEntry('foo'), PackageRelationEntry('bar')))
+        assert len(a) == 2
+        assert a[0].name == 'foo'
+        assert a[1].name == 'bar'
+
+    def test_init_iter_str(self) -> None:
+        a = PackageRelationGroup(('foo', 'bar'))
+        assert len(a) == 2
+        assert a[0].name == 'foo'
+        assert a[1].name == 'bar'
+
+    def test_init_self(self) -> None:
+        a = PackageRelationGroup(PackageRelationGroup(['foo', 'bar']))
+        assert len(a) == 2
+        assert a[0].name == 'foo'
+        assert a[1].name == 'bar'
+
+    def test_str(self) -> None:
+        a = PackageRelationGroup('foo|  bar')
+        assert str(a) == 'foo | bar'
+
+
+class TestPackageRelation:
+    def test_init(self) -> None:
+        a = PackageRelation()
+        assert a == []
+
+    def test_init_str(self) -> None:
+        a = PackageRelation('foo1 | foo2, bar')
+        assert len(a) == 2
+        assert len(a[0]) == 2
+        assert a[0][0].name == 'foo1'
+        assert a[0][1].name == 'foo2'
+        assert len(a[1]) == 1
+        assert a[1][0].name == 'bar'
+
+    def test_init_iter_entry(self) -> None:
+        a = PackageRelation([[PackageRelationEntry('foo')], [PackageRelationEntry('bar')]])
+        assert len(a) == 2
+        assert len(a[0]) == 1
+        assert a[0][0].name == 'foo'
+        assert len(a[1]) == 1
+        assert a[1][0].name == 'bar'
+
+    def test_init_iter_str(self) -> None:
+        a = PackageRelation(('foo', 'bar'))
+        assert len(a) == 2
+        assert len(a[0]) == 1
+        assert a[0][0].name == 'foo'
+        assert len(a[1]) == 1
+        assert a[1][0].name == 'bar'
+
+    def test_init_self(self) -> None:
+        a = PackageRelation(PackageRelation(('foo', 'bar')))
+        assert len(a) == 2
+        assert len(a[0]) == 1
+        assert a[0][0].name == 'foo'
+        assert len(a[1]) == 1
+        assert a[1][0].name == 'bar'
+
+    def test_str(self) -> None:
+        a = PackageRelation('foo ,bar')
+        assert str(a) == 'foo, bar'
+
+
+class TestPackageBuildprofileEntry:
+    def test_parse(self) -> None:
+        a = PackageBuildprofileEntry.parse('<profile1 !profile2 profile3 !profile4>')
+        assert a.pos == {'profile1', 'profile3'}
+        assert a.neg == {'profile2', 'profile4'}
+        assert str(a) == '<profile1 profile3 !profile2 !profile4>'
+
+    def test_eq(self) -> None:
+        a = PackageBuildprofileEntry.parse('<profile1 !profile2>')
+        b = PackageBuildprofileEntry(pos={'profile1'}, neg={'profile2'})
+        assert a == b
+
+    def test_isdisjoint(self) -> None:
+        a = PackageBuildprofileEntry.parse('<profile1 profile2>')
+        b = PackageBuildprofileEntry.parse('<profile1 profile3>')
+        assert a.isdisjoint(b)
+
+    def test_issubset_empty(self) -> None:
+        a = PackageBuildprofileEntry.parse('<profile1 profile2>')
+        b = PackageBuildprofileEntry()
+        assert a.issubset(b)
+
+    def test_issubset_pos(self) -> None:
+        a = PackageBuildprofileEntry.parse('<profile1 profile2>')
+        b = PackageBuildprofileEntry.parse('<profile1>')
+        assert a.issubset(b)
+
+    def test_issubset_neg(self) -> None:
+        a = PackageBuildprofileEntry.parse('<!profile1>')
+        b = PackageBuildprofileEntry.parse('<!profile1 !profile2>')
+        assert a.issubset(b)
+
+    def test_issubset_both(self) -> None:
+        a = PackageBuildprofileEntry.parse('<!profile1 !profile2 profile3>')
+        b = PackageBuildprofileEntry.parse('<!profile1 !profile2 !profile3>')
+        assert a.issubset(b)
+
+    def test_issuperset_empty(self) -> None:
+        a = PackageBuildprofileEntry.parse('<profile1 profile2>')
+        b = PackageBuildprofileEntry()
+        assert b.issuperset(a)
+
+    def test_issuperset_pos(self) -> None:
+        a = PackageBuildprofileEntry.parse('<profile1 profile2>')
+        b = PackageBuildprofileEntry.parse('<profile1>')
+        assert b.issuperset(a)
+
+    def test_issuperset_neg(self) -> None:
+        a = PackageBuildprofileEntry.parse('<!profile1>')
+        b = PackageBuildprofileEntry.parse('<!profile1 !profile2>')
+        assert b.issuperset(a)
+
+    def test_issuperset_both(self) -> None:
+        a = PackageBuildprofileEntry.parse('<!profile1 !profile2 profile3>')
+        b = PackageBuildprofileEntry.parse('<!profile1 !profile2 !profile3>')
+        assert b.issuperset(a)
+
+    def test_update_pos(self) -> None:
+        a = PackageBuildprofileEntry.parse('<profile1 profile2>')
+        b = PackageBuildprofileEntry.parse('<profile1>')
+        a.update(b)
+        assert a.pos == {'profile1'}
+        assert a.neg == set()
+
+    def test_update_neg(self) -> None:
+        a = PackageBuildprofileEntry.parse('<!profile1 !profile2>')
+        b = PackageBuildprofileEntry.parse('<!profile1>')
+        a.update(b)
+        assert a.pos == set()
+        assert a.neg == {'profile1'}
+
+    def test_update_both(self) -> None:
+        a = PackageBuildprofileEntry.parse('<profile1 !profile2 profile3>')
+        b = PackageBuildprofileEntry.parse('<profile1 !profile2 !profile3>')
+        a.update(b)
+        assert a.pos == {'profile1'}
+        assert a.neg == {'profile2'}
+
+
+class TestPackageBuildprofile:
+    def test_parse(self) -> None:
+        a = PackageBuildprofile.parse('<profile1> <!profile2> <profile3> <!profile4>')
+        assert str(a) == '<profile1> <!profile2> <profile3> <!profile4>'
+
+    def test_update(self) -> None:
+        a = PackageBuildprofile.parse('<profile1 profile2> <profile2>')
+        b = PackageBuildprofile.parse('<profile1> <profile2 !profile3> <profile3>')
+        a.update(b)
+        assert str(a) == '<profile1> <profile2> <profile3>'
diff --git a/debian/lib/python/debian_linux/utils.py b/debian/lib/python/debian_linux/utils.py
new file mode 100644
index 0000000000..0c6569b5a0
--- /dev/null
+++ b/debian/lib/python/debian_linux/utils.py
@@ -0,0 +1,76 @@
+import io
+import os
+import re
+import textwrap
+import typing
+
+import jinja2
+
+from .debian import SourcePackage, BinaryPackage, TestsControl
+
+
+class Templates(object):
+    dirs: list[str]
+    _cache: dict[str, str]
+    _jinja2: jinja2.Environment
+
+    def __init__(self, dirs: list[str] = ["debian/templates"]) -> None:
+        self.dirs = dirs
+
+        self._cache = {}
+        self._jinja2 = jinja2.Environment(
+            # autoescape uses HTML safe escaping, which does not help us
+            autoescape=False,
+            keep_trailing_newline=True,
+            trim_blocks=True,
+            undefined=jinja2.StrictUndefined,
+        )
+
+    def _read(self, name: str) -> typing.Any:
+        pkgid, name = name.rsplit('.', 1)
+
+        for suffix in ['.j2', '.in', '']:
+            for dir in self.dirs:
+                filename = "%s/%s.%s%s" % (dir, pkgid, name, suffix)
+                if os.path.exists(filename):
+                    with open(filename, 'r', encoding='utf-8') as f:
+                        return (f.read(), suffix)
+
+        raise KeyError(name)
+
+    def _get(self, key: str) -> typing.Any:
+        try:
+            return self._cache[key]
+        except KeyError:
+            self._cache[key] = value = self._read(key)
+            return value
+
+    def get(self, key: str, context: dict[str, str] = {}) -> str:
+        value = self._get(key)
+        suffix = value[1]
+
+        if context:
+            if suffix == '.in':
+                def subst(match):
+                    return context[match.group(1)]
+                return re.sub(r'@([-_a-z0-9]+)@', subst, str(value[0]))
+
+            elif suffix == '.j2':
+                return self._jinja2.from_string(value[0]).render(context)
+
+        return value[0]
+
+    def get_control(self, key: str, context: dict[str, str] = {}) -> BinaryPackage:
+        return BinaryPackage.read_rfc822(io.StringIO(self.get(key, context)))
+
+    def get_source_control(self, key: str, context: dict[str, str] = {}) -> SourcePackage:
+        return SourcePackage.read_rfc822(io.StringIO(self.get(key, context)))
+
+    def get_tests_control(self, key: str, context: dict[str, str] = {}) -> TestsControl:
+        return TestsControl.read_rfc822(io.StringIO(self.get(key, context)))
+
+
+class TextWrapper(textwrap.TextWrapper):
+    wordsep_re = re.compile(
+        r'(\s+|'                                  # any whitespace
+        r'(?<=[\w\!\"\'\&\.\,\?])-{2,}(?=\w))')   # em-dash