/
local.py
63 lines (52 loc) · 1.82 KB
/
local.py
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import os
import re
import packaging.version
import py
import tox
from tox import reporter
from tox.exception import MissingDependency
_SPEC_2_PACKAGE = {}
def resolve_package(package_spec):
global _SPEC_2_PACKAGE
try:
return _SPEC_2_PACKAGE[package_spec]
except KeyError:
_SPEC_2_PACKAGE[package_spec] = x = get_latest_version_of_package(package_spec)
return x
def get_latest_version_of_package(package_spec):
if not os.path.isabs(str(package_spec)):
return package_spec
p = py.path.local(package_spec)
if p.check():
return p
if not p.dirpath().check(dir=1):
raise tox.exception.MissingDirectory(p.dirpath())
reporter.info("determining {}".format(p))
candidates = p.dirpath().listdir(p.basename)
if len(candidates) == 0:
raise MissingDependency(package_spec)
if len(candidates) > 1:
version_package = []
for filename in candidates:
version = get_version_from_filename(filename.basename)
if version is not None:
version_package.append((version, filename))
else:
reporter.warning("could not determine version of: {}".format(str(filename)))
if not version_package:
raise tox.exception.MissingDependency(package_spec)
version_package.sort()
_, package_with_largest_version = version_package[-1]
return package_with_largest_version
else:
return candidates[0]
_REGEX_FILE_NAME_WITH_VERSION = re.compile(r"[\w_+.-]+-(.*)\.(zip|tar\.gz)")
def get_version_from_filename(basename):
m = _REGEX_FILE_NAME_WITH_VERSION.match(basename)
if m is None:
return None
version = m.group(1)
try:
return packaging.version.Version(version)
except packaging.version.InvalidVersion:
return None