def check(root, resolved=True, missed=None, **deps):
resolver = Resolver(
graph=Graph(root),
mutator=Mutator(),
)
with patch(
target='dephell.controllers.dependency.get_repo',
return_value=resolver.graph._roots[0].repo,
):
result = resolver.resolve(debug=True, silent=True)
reqs = Requirement.from_graph(resolver.graph, lock=True)
reqs = {req.name: req for req in reqs}
try:
assert result is resolved
except AssertionError:
if result is False:
print(analyze_conflict(resolver=resolver))
raise
assert resolver.graph.applied
for name in sorted(deps.keys()):
if name not in reqs:
raise AssertionError('Dep not in graph: ' + name)
print(name, reqs[name].version)
for name, version in deps.items():
assert reqs[name].version == version, '{}: {} != {}'.format(
name, reqs[name].version, version)
if missed:
for name in missed:
assert name not in reqs
def merge(*roots, merged=True, deps=None):
graph = Graph()
for root in roots:
graph.add(root)
resolver = Resolver(graph=graph, mutator=Mutator())
resolved = resolver.resolve(level=1)
try:
assert merged == resolved
except AssertionError:
if resolved is False:
print(analyze_conflict(resolver=resolver))
raise
if deps:
for dep in deps:
assert dep in resolver.graph
names = set(resolver.graph.names) - set(root.name for root in roots)
assert names == set(deps)
return resolver
from collections import Counter
from dephell.config import config
from dephell.controllers import analyze_conflict
from dephell.converters import InstalledConverter
from dephell.exceptions import ExtraException
# black has no releases not markerd as pre-release.
config.attach(dict(prereleases=True))
# read deps
resolver = InstalledConverter().load_resolver(None)
# build dependencies tree
try:
resolved = resolver.resolve()
except ExtraException as e:
print(str(e), e.extra)
exit(1)
if not resolved:
print('cannot resolve')
print(analyze_conflict(resolver=resolver))
exit(2)
# get most used dependencies
c = Counter()
for dep in resolver.graph:
for source in dep.constraint.sources:
c[source] += 1
print(*c.most_common(20)[1:], sep='\n')