openstack/requirements
Code Issues Proposed changes

Ignore empty requirements/constraints when building lower-constraints

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Some constraints files[1] contain valid data but we want to ignore them
when generating a combined lower-constraints.txt, rather than erroring
out:

 [tony@thor requirements]$ time .tox/venv/bin/build-lower-constraints ../*/lower-constraints.txt > tjmaxx.txt
 Traceback (most recent call last):
   File ".tox/venv/bin/build-lower-constraints", line 10, in <module>
     sys.exit(main())
   File "/home/tony/projects/openstack/openstack/requirements/openstack_requirements/cmds/build_lower_constraints.py", line 71, in main
     merged = list(merge_constraints_sets(constraints_sets))
   File "/home/tony/projects/openstack/openstack/requirements/openstack_requirements/cmds/build_lower_constraints.py", line 53, in merge_constraints_sets
     val = max((c[0] for c in constraints), key=get_requirements_version)
   File "/home/tony/projects/openstack/openstack/requirements/openstack_requirements/cmds/build_lower_constraints.py", line 43, in get_requirements_version
     raise ValueError('could not find version for {}'.format(req))
 ValueError: could not find version for Requirement(package='', location='', specifiers='', markers='', comment='# flake8==2.5.5', extras=frozenset())

Let's just ignore comments in those files.

[1] http://git.openstack.org/cgit/openstack/zaqar/tree/lower-constraints.txt#n28

Change-Id: Ie347ab273a1b239d9d264704482d3202dc4e4c74
This commit is contained in:
Tony Breeds 2018-07-05 09:48:55 +10:00
parent 961a537e0d
commit 8bc094cf9e
2 changed files with 14 additions and 1 deletions
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3
openstack_requirements/cmds/build_lower_constraints.py
View File

@ -48,7 +48,8 @@ def merge_constraints_sets(constraints_sets):
all_constraints = collections.defaultdict(list)
for constraints_set in constraints_sets:
for constraint_name, constraint in constraints_set.items():
all_constraints[constraint_name].extend(constraint)
if constraint_name:
all_constraints[constraint_name].extend(constraint)
for constraint_name, constraints in sorted(all_constraints.items()):
val = max((c[0] for c in constraints), key=get_requirements_version)
yield val.to_line()

12
openstack_requirements/tests/test_build_lower_constraints.py
View File

@ -55,3 +55,15 @@ class BuildLowerConstraintsTest(testtools.TestCase):
expected,
list(build_lower_constraints.merge_constraints_sets(inputs))
)
def test_one_input_file_with_comments(self):
inputs = [
requirement.parse('package==1.2.3\n # package2==0.9.8'),
]
expected = [
'package==1.2.3\n',
]
self.assertEqual(
expected,
list(build_lower_constraints.merge_constraints_sets(inputs))
)