From b5d22b5fba64e1b1f6f00d662ae11be5290407fa Mon Sep 17 00:00:00 2001
From: Eli Schwartz <eschwartz@archlinux.org>
Date: Mon, 11 Jun 2018 22:29:16 -0400
Subject: [PATCH] Embrace environment markers (a.k.a. PEP 508 compliance)!

Failure to use environment markers means the dependencies are
unconditionally added at build time based on the host instead of being
always present and evaluated at runtime on the target; e.g. wheels have
the wrong information.

Also use python_requires. This teaches pip how to natively comprehend
when the current version of python is not supported by borg.

Returns errors in the format:
borgbackup requires Python '>=3.5' but the running Python is $oldver
---
 setup.py | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/setup.py b/setup.py
index b20bd5165..3bf8d0409 100644
--- a/setup.py
+++ b/setup.py
@@ -38,13 +38,6 @@ prefer_system_libzstd = True
 # True: use the shared libb2 from the system, False: use the bundled blake2 code
 prefer_system_libb2 = True
 
-min_python = (3, 5)
-my_python = sys.version_info
-
-if my_python < min_python:
-    print("Borg requires Python %d.%d or later" % min_python)
-    sys.exit(1)
-
 cpu_threads = multiprocessing.cpu_count() if multiprocessing else 1
 
 # Are we building on ReadTheDocs?
@@ -77,17 +70,15 @@ extras_require = {
     # llfuse 1.2 (tested shortly, looks ok), needs FUSE version >= 2.8.0
     # llfuse 1.3 (tested shortly, looks ok), needs FUSE version >= 2.8.0
     # llfuse 2.0 will break API
-    'fuse': ['llfuse<2.0', ],
+    'fuse': [
+        'llfuse<2.0',
+        # llfuse was frequently broken / did not build on freebsd
+        # llfuse 0.41.1, 1.1 are ok
+        'llfuse !=0.42.*, !=0.43, !=1.0; platform_system == "FreeBSD"',
+        'llfuse >=1.3.4; python_version >="3.7"',
+    ],
 }
 
-if sys.platform.startswith('freebsd'):
-    # llfuse was frequently broken / did not build on freebsd
-    # llfuse 0.41.1, 1.1 are ok
-    extras_require['fuse'] = ['llfuse <2.0, !=0.42.*, !=0.43, !=1.0', ]
-
-if my_python >= (3, 7):
-    extras_require['fuse'][0] += ', >=1.3.4'
-
 compress_source = 'src/borg/compress.pyx'
 crypto_ll_source = 'src/borg/crypto/low_level.pyx'
 crypto_helpers = 'src/borg/crypto/_crypto_helpers.c'
@@ -844,4 +835,5 @@ setup(
     setup_requires=['setuptools_scm>=1.7'],
     install_requires=install_requires,
     extras_require=extras_require,
+    python_requires='>=3.5',
 )