File 0001-Dont-fail-with-valid-options-in-requirements_txt-files.patch of Package python-requirements-parser

From fd172ae6faf56f3d221666fb336e84df01d8b943 Mon Sep 17 00:00:00 2001
From: Antonio Larrosa <alarrosa@suse.com>
Date: Wed, 15 Apr 2020 11:40:47 +0200
Subject: [PATCH] Don't fail with valid options in requirements.txt files

When parsing requirements.txt files, a number of options can be used
that shouldn't make the parser fail. The list of options can
be seen at:

https://pip.pypa.io/en/stable/reference/pip_install/#requirements-file-format
---
 requirements/parser.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/requirements/parser.py b/requirements/parser.py
index 024c905..1bb66f5 100644
--- a/requirements/parser.py
+++ b/requirements/parser.py
@@ -46,5 +46,20 @@ def parse(reqstr):
         elif line.startswith('-Z') or line.startswith('--always-unzip'):
             warnings.warn('Unused option --always-unzip. Skipping.')
             continue
+        elif line.startswith('-c') or line.startswith('--constraint'):
+            warnings.warn('--constraint option not supported. Skipping.')
+            continue
+        elif line.startswith('--no-binary') or line.startswith('--only-binary'):
+            warnings.warn('--no-binary and --only-binary options not supported. Skipping.')
+            continue
+        elif line.startswith('--require-hashes'):
+            warnings.warn('Unused option --require-hashes. Skipping.')
+            continue
+        elif line.startswith('--pre'):
+            warnings.warn('Unused option --pre. Skipping.')
+            continue
+        elif line.startswith('--trusted-host'):
+            warnings.warn('Unused option --trusted-host. Skipping.')
+            continue
         else:
             yield Requirement.parse(line)