No distutils but packaging (backport to 1.1)

.github/workflows/ci.yml

@@ -66,9 +66,9 @@ jobs:
             - os: ubuntu-20.04
               python-version: '3.9'
               toxenv: py39
-            #- os: ubuntu-20.04
-            #  python-version: '3.10-dev'
-            #  toxenv: py310
+            - os: ubuntu-20.04
+              python-version: '3.10-dev'
+              toxenv: py310
             - os: macos-latest
               # note: it seems that 3.8 and 3.9 are currently broken,
               # neverending RuntimeError crashes...

setup.py

@@ -37,7 +37,9 @@
 # Are we building on ReadTheDocs?
 on_rtd = os.environ.get('READTHEDOCS')
 
-install_requires = []
+install_requires = [
+    'packaging',
+]
 
 # note for package maintainers: if you package borgbackup for distribution,
 # please add llfuse as a *requirement* on all platforms that have a working
@@ -52,10 +54,8 @@
     ],
 }
 
-from setuptools import setup, find_packages, Extension
+from setuptools import setup, find_packages, Extension, Command
 from setuptools.command.sdist import sdist
-from distutils.core import Command
-from distutils.command.clean import clean
 
 compress_source = 'src/borg/compress.pyx'
 crypto_ll_source = 'src/borg/crypto/low_level.pyx'
@@ -146,7 +146,7 @@ def __init__(self, *args, **kwargs):
     msgpack_packer_source = msgpack_packer_source.replace('.pyx', '.cpp')
     msgpack_unpacker_source = msgpack_unpacker_source.replace('.pyx', '.cpp')
 
-    from distutils.command.build_ext import build_ext
+    from setuptools.command.build_ext import build_ext
     if not on_rtd and not all(os.path.exists(path) for path in [
         compress_source, crypto_ll_source, chunker_source, hashindex_source, item_source, checksums_source,
         platform_posix_source, platform_linux_source, platform_syncfilerange_source, platform_freebsd_source, platform_darwin_source,
@@ -767,9 +767,16 @@ def rm(file):
         pass
 
 
-class Clean(clean):
+class Clean(Command):
+    user_options = []
+
+    def initialize_options(self):
+        pass
+
+    def finalize_options(self):
+        pass
+
     def run(self):
-        super().run()
         for source in cython_c_sources:
             genc = source.replace('.pyx', '.c')
             rm(genc)
@@ -786,7 +793,7 @@ def run(self):
     'build_usage': build_usage,
     'build_man': build_man,
     'sdist': Sdist,
-    'clean': Clean,
+    'clean2': Clean,
 }
 
 ext_modules = []

src/borg/__init__.py

@@ -1,11 +1,12 @@
-from distutils.version import LooseVersion
+from packaging.version import parse as parse_version
 
 # IMPORTANT keep imports from borg here to a minimum because our testsuite depends on
 # beeing able to import borg.constants and then monkey patching borg.constants.PBKDF2_ITERATIONS
 from ._version import version as __version__
 
 
-__version_tuple__ = tuple(LooseVersion(__version__).version[:3])
+_v = parse_version(__version__)
+__version_tuple__ = _v._version.release
 
 # assert that all semver components are integers
 # this is mainly to show errors when people repackage poorly

src/borg/xattr.py

@@ -8,7 +8,7 @@
 import tempfile
 from ctypes import CDLL, create_string_buffer, c_ssize_t, c_size_t, c_char_p, c_int, c_uint32, get_errno
 from ctypes.util import find_library
-from distutils.version import LooseVersion
+from packaging.version import parse as parse_version
 
 from .helpers import Buffer, prepare_subprocess_env
 
@@ -90,8 +90,8 @@ def get_all(path, follow_symlinks=True):
         if preload.startswith("libfakeroot"):
             env = prepare_subprocess_env(system=True)
             fakeroot_output = subprocess.check_output(['fakeroot', '-v'], env=env)
-            fakeroot_version = LooseVersion(fakeroot_output.decode('ascii').split()[-1])
-            if fakeroot_version >= LooseVersion("1.20.2"):
+            fakeroot_version = parse_version(fakeroot_output.decode('ascii').split()[-1])
+            if fakeroot_version >= parse_version("1.20.2"):
                 # 1.20.2 has been confirmed to have xattr support
                 # 1.18.2 has been confirmed not to have xattr support
                 # Versions in-between are unknown