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lpapicache

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This commit is contained in:
Dimitri John Ledkov 2014-12-18 20:28:48 +00:00
parent 0c211c1bc7
commit 1bbedd4ddd
1 changed files with 37 additions and 14 deletions
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51
ubuntutools/lp/lpapicache.py
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@ -21,12 +21,34 @@
# #
# Based on code written by Jonathan Davies <jpds@ubuntu.com> # Based on code written by Jonathan Davies <jpds@ubuntu.com>
from __future__ import print_function
# Uncomment for tracing LP API calls # Uncomment for tracing LP API calls
#import httplib2 #import httplib2
#httplib2.debuglevel = 1 #httplib2.debuglevel = 1
import sys import sys
if sys.version_info[0] >= 3:
basestring = str
unicode = str
#Shameless steal from python-six
def add_metaclass(metaclass):
"""Class decorator for creating a class with a metaclass."""
def wrapper(cls):
orig_vars = cls.__dict__.copy()
slots = orig_vars.get('__slots__')
if slots is not None:
if isinstance(slots, str):
slots = [slots]
for slots_var in slots:
orig_vars.pop(slots_var)
orig_vars.pop('__dict__', None)
orig_vars.pop('__weakref__', None)
return metaclass(cls.__name__, cls.__bases__, orig_vars)
return wrapper
from debian.changelog import Changelog, Version from debian.changelog import Changelog, Version
from httplib2 import Http, HttpLib2Error from httplib2 import Http, HttpLib2Error
from launchpadlib.launchpad import Launchpad as LP from launchpadlib.launchpad import Launchpad as LP
@ -39,6 +61,7 @@ from ubuntutools.lp.udtexceptions import (AlreadyLoggedInError,
PackageNotFoundException, PackageNotFoundException,
PocketDoesNotExistError, PocketDoesNotExistError,
SeriesNotFoundException) SeriesNotFoundException)
import collections
__all__ = [ __all__ = [
'Archive', 'Archive',
@ -64,8 +87,8 @@ class _Launchpad(object):
try: try:
self.__lp = LP.login_with('ubuntu-dev-tools', service, self.__lp = LP.login_with('ubuntu-dev-tools', service,
version=api_version) version=api_version)
except IOError, error: except IOError as error:
print >> sys.stderr, 'E: %s' % error print('E: %s' % error, file=sys.stderr)
raise raise
else: else:
raise AlreadyLoggedInError('Already logged in to Launchpad.') raise AlreadyLoggedInError('Already logged in to Launchpad.')
@ -112,11 +135,11 @@ class MetaWrapper(type):
cls._cache = dict() cls._cache = dict()
@add_metaclass(MetaWrapper)
class BaseWrapper(object): class BaseWrapper(object):
''' '''
A base class from which other wrapper classes are derived. A base class from which other wrapper classes are derived.
''' '''
__metaclass__ = MetaWrapper
resource_type = None # it's a base class after all resource_type = None # it's a base class after all
def __new__(cls, data): def __new__(cls, data):
@ -149,7 +172,7 @@ class BaseWrapper(object):
cls._cache[data.self_link] = cached cls._cache[data.self_link] = cached
# add additional class specific caching (if available) # add additional class specific caching (if available)
cache = getattr(cls, 'cache', None) cache = getattr(cls, 'cache', None)
if callable(cache): if isinstance(cache, collections.Callable):
cache(cached) cache(cached)
return cached return cached
else: else:
@ -158,7 +181,7 @@ class BaseWrapper(object):
else: else:
# not a LP API representation, let the specific class handle it # not a LP API representation, let the specific class handle it
fetch = getattr(cls, 'fetch', None) fetch = getattr(cls, 'fetch', None)
if callable(fetch): if isinstance(fetch, collections.Callable):
return fetch(data) return fetch(data)
else: else:
raise NotImplementedError("Don't know how to fetch '%s' from LP" raise NotImplementedError("Don't know how to fetch '%s' from LP"
@ -502,19 +525,19 @@ class SourcePackagePublishingHistory(BaseWrapper):
if self._changelog is None: if self._changelog is None:
url = self._lpobject.changelogUrl() url = self._lpobject.changelogUrl()
if url is None: if url is None:
print >> sys.stderr, ('E: No changelog available for %s %s', print(('E: No changelog available for %s %s',
(self.getPackageName(), (self.getPackageName(),
self.getVersion())) self.getVersion())), file=sys.stderr)
return None return None
try: try:
response, changelog = Http().request(url) response, changelog = Http().request(url)
except HttpLib2Error, e: except HttpLib2Error as e:
print >> sys.stderr, str(e) print(str(e), file=sys.stderr)
return None return None
if response.status != 200: if response.status != 200:
print >> sys.stderr, ('%s: %s %s' % (url, response.status, print(('%s: %s %s' % (url, response.status,
response.reason)) response.reason)), file=sys.stderr)
return None return None
self._changelog = changelog self._changelog = changelog
@ -627,7 +650,7 @@ class MetaPersonTeam(MetaWrapper):
if '_me' not in cls.__dict__: if '_me' not in cls.__dict__:
try: try:
cls._me = PersonTeam(Launchpad.me) cls._me = PersonTeam(Launchpad.me)
except HTTPError, error: except HTTPError as error:
if error.response.status == 401: if error.response.status == 401:
# Anonymous login # Anonymous login
cls._me = None cls._me = None
@ -636,11 +659,11 @@ class MetaPersonTeam(MetaWrapper):
return cls._me return cls._me
@add_metaclass(MetaPersonTeam)
class PersonTeam(BaseWrapper): class PersonTeam(BaseWrapper):
''' '''
Wrapper class around a LP person or team object. Wrapper class around a LP person or team object.
''' '''
__metaclass__ = MetaPersonTeam
resource_type = ( resource_type = (
'person', 'person',
@ -716,7 +739,7 @@ class PersonTeam(BaseWrapper):
sourcepackagename=package, sourcepackagename=package,
) )
canUpload = True canUpload = True
except HTTPError, e: except HTTPError as e:
if e.response.status == 403: if e.response.status == 403:
canUpload = False canUpload = False
else: else: