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package.py
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package.py
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# imports - compatibility imports
from __future__ import absolute_import
# imports - standard imports
from datetime import datetime, timedelta
from functools import partial
import os.path as osp
import re
# imports - module imports
from pipupgrade.__attr__ import __name__ as NAME
from pipupgrade import _pip, semver, request as req, db, log
from pipupgrade.tree import Node as TreeNode
from pipupgrade.util.string import kebab_case, strip
from pipupgrade._compat import iteritems
from pipupgrade.config import Settings
logger = log.get_logger()
_db = db.get_connection()
settings = Settings()
def _get_pypi_info(name, raise_err = True):
url = "https://pypi.org/pypi/{}/json".format(name)
res = req.get(url)
info = None
if res.ok:
data = res.json()
info = data["info"]
else:
if raise_err:
res.raise_for_status()
return info
def _get_pip_info(*args, **kwargs):
packages = args
pip_exec = kwargs.get("pip_exec", None)
_, out, _ = _pip.call("show", *packages, pip_exec = pip_exec,
output = True)
results = [strip(o) for o in out.split("---")]
info = dict()
for i, package in enumerate(packages):
result = results[i]
detail = dict((kebab_case(k), v) \
for k, v in \
iteritems(
dict([(s + [""]) if len(s) == 1 else s \
for s in [re.split(r":\s?", o, maxsplit = 1) \
for o in result.split("\n")]]
)
)
)
info[package] = detail
return info
def _get_package_version(package, pip_exec = None):
info = _get_pip_info(package, pip_exec = pip_exec)[package]
return info["version"]
class Package(object):
def __init__(self, package, sync = False, pip_exec = None):
logger.info("Initializing Package %s of type %s..." % (package, type(package)))
self.current_version = None
if isinstance(package, (_pip.Distribution, _pip.DistInfoDistribution,
_pip.EggInfoDistribution)):
self.name = package.project_name
self.current_version = package.version
elif isinstance(package, _pip.InstallRequirement):
self.name = package.name
if hasattr(package, "req"):
if hasattr(package.req, "specifier"):
self.current_version = str(package.req.specifier)
else:
self.current_version = package.installed_version
elif isinstance(package, dict):
self.name = package["name"]
self.current_version = package["version"]
self.latest_version = package.get("latest_version")
elif isinstance(package, str):
self.name = package
if pip_exec:
self.current_version = _get_package_version(package,
pip_exec = pip_exec)
res = None
try:
logger.info("Fetching package %s information from DB..." % self.name)
res = _db.query("""
SELECT *
FROM `tabPackage`
WHERE name = '%s'
""" % self.name)
except db.OperationalError as e:
logger.warn("Unable to fetch package name. %s" % e)
if res:
cache_timeout = settings.get("cache_timeout")
if res["_updated_at"]:
time_difference = res["_updated_at"] + timedelta(seconds = cache_timeout)
if datetime.now() > time_difference:
sync = True
else:
sync = True
if not res or sync:
logger.info("Fetching PyPI info for package %s..." % self)
_pypi_info = _get_pypi_info(self.name, raise_err = False) or { }
if not getattr(self, "latest_version", None) or sync:
self.latest_version = _pypi_info.get("version")
self.home_page = _pypi_info.get("home_page")
if not res:
try:
values = (self.name, self.latest_version or "NULL", self.home_page, datetime.now(), datetime.now())
logger.info("Attempting to INSERT package %s into database with values: %s." % (self, values))
_db.query("""
INSERT INTO `tabPackage`
(name, latest_version, home_page, _created_at, _updated_at)
VALUES
('%s', '%s', '%s', '%s', '%s')
""" % values)
except (db.IntegrityError, db.OperationalError) as e:
logger.warn("Unable to save package name. %s" % e)
else:
if sync:
logger.info("Attempting to UPDATE package %s within database." % self)
try:
_db.query("""
UPDATE `tabPackage`
SET latest_version = '%s', home_page = '%s', _updated_at = '%s'
WHERE
name = '%s'
""" % (self.latest_version, self.home_page, datetime.now(), self.name))
except db.OperationalError as e:
logger.warn("Unable to update package name. %s" % e)
else:
logger.info("Using cached info for package %s." % self)
self.latest_version = res["latest_version"]
self.home_page = res["home_page"]
self.dependency_tree = TreeNode(self)
@property
def difference(self):
difference = None
try:
difference = semver.difference(
self.current_version,
self.latest_version
)
except (TypeError, ValueError):
pass
return difference
def __repr__(self):
repr_ = "<Package %s%s>" % (self.name,
" (%s)" % self.current_version if self.current_version else "")
return repr_
def to_dict(self):
dependencies = self.dependency_tree.to_dict(repr_ = lambda x: x.name)
dict_ = dict({
"name": self.name,
"current_version": self.current_version,
"latest_version": self.latest_version,
"home_page": self.home_page,
"dependencies": dependencies[self.name]
})
return dict_