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#!/usr/bin/python
# -*- coding: utf-8 -*-
#################################################################################
# overlord OVERLAY DB
#################################################################################
# File: db.py
#
# Access to the db of overlays
#
# Copyright:
# (c) 2005 - 2008 Gunnar Wrobel
# Distributed under the terms of the GNU General Public License v2
#
# Author(s):
# Gunnar Wrobel <wrobel@gentoo.org>
#
'''Handles different storage files.'''
__version__ = "$Id: db.py 309 2007-04-09 16:23:38Z wrobel $"
#===============================================================================
#
# Dependencies
#
#-------------------------------------------------------------------------------
import os, os.path, urllib2, hashlib
from overlord.utils import path, delete_empty_directory
from overlord.dbbase import DbBase
from overlord.makeconf import MakeConf
#from overlord.debug import OUT
#===============================================================================
#
# Class DB
#
#-------------------------------------------------------------------------------
class DB(DbBase):
''' Handle the list of local overlays.'''
def __init__(self, config):
self.config = config
self.output = config['output']
self.path = config['local_list']
if config['nocheck']:
ignore = 2
else:
ignore = 1
quiet = int(config['quietness']) < 3
DbBase.__init__(self,
[config['local_list'], ],
config,
ignore,
quiet)
self.output.debug('DB handler initiated', 6)
# overrider
def _broken_catalog_hint(self):
return ''
def add(self, overlay, quiet = False):
'''
Add an overlay to the local list of overlays.
>>> write = os.tmpnam()
>>> write2 = os.tmpnam()
>>> write3 = os.tmpnam()
>>> here = os.path.dirname(os.path.realpath(__file__))
>>> config = {'local_list' :
... here + '/tests/testfiles/global-overlays.xml',
... 'make_conf' : write2,
... 'nocheck' : True,
... 'storage' : write3,
... 'quietness':3}
>>> here = os.path.dirname(os.path.realpath(__file__))
>>> a = DB(config)
>>> config['local_list'] = write
>>> b = DB(config)
>>> OUT.color_off()
>>> m = MakeConf(config, b.overlays)
>>> m.path = write2
>>> m.write()
Commented out since it needs network access:
# >>> b.add(a.select('wrobel-stable')) #doctest: +ELLIPSIS
# * Running command "/usr/bin/rsync -rlptDvz --progress --delete --delete-after --timeout=180 --exclude="distfiles/*" --exclude="local/*" --exclude="packages/*" "rsync://gunnarwrobel.de/wrobel-stable/*" "/tmp/file.../wrobel-stable""...
# >>> c = DbBase([write, ], dict())
# >>> c.overlays.keys()
# [u'wrobel-stable']
# >>> m = MakeConf(config, b.overlays)
# >>> [i.name for i in m.overlays] #doctest: +ELLIPSIS
# [u'wrobel-stable']
# >>> os.unlink(write)
>>> os.unlink(write2)
>>> import shutil
# >>> shutil.rmtree(write3)
'''
if overlay.name not in self.overlays.keys():
result = overlay.add(self.config['storage'], quiet)
if result == 0:
if 'priority' in self.config.keys():
overlay.set_priority(self.config['priority'])
self.overlays[overlay.name] = overlay
self.write(self.path)
make_conf = MakeConf(self.config, self.overlays)
make_conf.add(overlay)
else:
mdir = path([self.config['storage'], overlay.name])
delete_empty_directory(mdir, self.output)
if os.path.exists(mdir):
raise Exception('Adding overlay "%s" failed!'
' Possible remains of the operation have NOT'
' been removed and may be left at "%s".'
' Please remove them manually if required.' \
% (overlay.name, mdir))
else:
raise Exception('Adding overlay "%s" failed!' % overlay.name)
else:
raise Exception('Overlay "' + overlay.name + '" already in the loca'
'l list!')
def delete(self, overlay):
'''
Add an overlay to the local list of overlays.
>>> write = os.tmpnam()
>>> write2 = os.tmpnam()
>>> write3 = os.tmpnam()
>>> here = os.path.dirname(os.path.realpath(__file__))
>>> config = {'local_list' :
... here + '/tests/testfiles/global-overlays.xml',
... 'make_conf' : write2,
... 'nocheck' : True,
... 'storage' : write3,
... 'quietness':3}
>>> here = os.path.dirname(os.path.realpath(__file__))
>>> a = DB(config)
>>> config['local_list'] = write
>>> b = DB(config)
>>> .color_off()
>>> m = MakeConf(config, b.overlays)
>>> m.path = here + '/tests/testfiles/make.conf'
>>> m.read()
>>> m.path = write2
>>> m.write()
# >>> b.add(a.select('wrobel-stable')) #doctest: +ELLIPSIS
# * Running command "/usr/bin/rsync -rlptDvz --progress --delete --delete-after --timeout=180 --exclude="distfiles/*" --exclude="local/*" --exclude="packages/*" "rsync://gunnarwrobel.de/wrobel-stable/*" "/tmp/file.../wrobel-stable""...
# >>> b.add(a.select('wrobel')) #doctest: +ELLIPSIS
# * Running command "/usr/bin/svn co "https://overlays.gentoo.org/svn/dev/wrobel/" "/tmp/file.../wrobel""...
# >>> c = DbBase([write, ], dict())
# >>> c.overlays.keys()
# [u'wrobel', u'wrobel-stable']
# >>> b.delete(b.select('wrobel'))
# >>> c = DbBase([write, ], dict())
# >>> c.overlays.keys()
# [u'wrobel-stable']
# >>> m = MakeConf(config, b.overlays)
# >>> [i.name for i in m.overlays] #doctest: +ELLIPSIS
# [u'wrobel-stable']
# >>> os.unlink(write)
>>> os.unlink(write2)
>>> import shutil
# >>> shutil.rmtree(write3)
'''
if overlay.name in self.overlays.keys():
make_conf = MakeConf(self.config, self.overlays)
overlay.delete(self.config['storage'])
del self.overlays[overlay.name]
self.write(self.path)
make_conf.delete(overlay)
else:
raise Exception('No local overlay named "' + overlay.name + '"!')
def sync(self, overlay_name, quiet = False):
'''Synchronize the given overlay.'''
overlay = self.select(overlay_name)
result = overlay.sync(self.config['storage'], quiet)
if result:
raise Exception('Syncing overlay "' + overlay_name +
'" returned status ' + str(result) + '!')
#===============================================================================
#
# Class RemoteDB
#
#-------------------------------------------------------------------------------
class RemoteDB(DbBase):
'''Handles fetching the remote overlay list.'''
def __init__(self, config, ignore_init_read_errors=False):
self.config = config
self.output = config['output']
self.proxies = {}
if config['proxy']:
self.proxies['http'] = config['proxy']
elif os.getenv('http_proxy'):
self.proxies['http'] = os.getenv('http_proxy')
if self.proxies:
proxy_handler = urllib2.ProxyHandler(self.proxies)
opener = urllib2.build_opener(proxy_handler)
urllib2.install_opener(opener)
self.urls = [i.strip() for i in config['overlays'].split('\n') if i]
paths = [self.path(i) for i in self.urls]
if config['nocheck']:
ignore = 2
else:
ignore = 0
quiet = int(config['quietness']) < 3
DbBase.__init__(self, paths, config, ignore, quiet, ignore_init_read_errors)
# overrider
def _broken_catalog_hint(self):
return 'Try running "sudo overlord -f" to re-fetch that file'
def cache(self):
'''
Copy the remote overlay list to the local cache.
>>> here = os.path.dirname(os.path.realpath(__file__))
>>> cache = os.tmpnam()
>>> config = {'overlays' :
... 'file://' + here + '/tests/testfiles/global-overlays.xml',
... 'cache' : cache,
... 'nocheck' : True,
... 'proxy' : None,
... 'quietness':3}
>>> a = RemoteDB(config)
>>> a.cache()
>>> b = open(a.path(config['overlays']))
>>> b.readlines()[24]
' A collection of ebuilds from Gunnar Wrobel [wrobel@gentoo.org].\\n'
>>> b.close()
>>> os.unlink(a.path(config['overlays']))
>>> a.overlays.keys()
[u'wrobel', u'wrobel-stable']
'''
for url in self.urls:
mpath = self.path(url)
# Check for sufficient privileges
if os.path.exists(mpath) and not os.access(mpath, os.W_OK):
self.output.warn('You do not have permission to update the cache (%s).' % mpath)
import getpass
if getpass.getuser() != 'root':
self.output.warn('Hint: You are not root.\n')
continue
try:
# Fetch the remote list
olist = urllib2.urlopen(url).read()
# Create our storage directory if it is missing
if not os.path.exists(os.path.dirname(mpath)):
try:
os.makedirs(os.path.dirname(mpath))
except OSError, error:
raise OSError('Failed to create overlord storage direct'
+ 'ory ' + os.path.dirname(mpath) + '\n'
+ 'Error was:' + str(error))
# Before we overwrite the old cache, check that the downloaded
# file is intact and can be parsed
try:
self.read(olist, origin=url)
except Exception, error:
raise IOError('Failed to parse the overlays list fetched fr'
'om ' + url + '\nThis means that the download'
'ed file is somehow corrupt or there was a pr'
'oblem with the webserver. Check the content '
'of the file. Error was:\n' + str(error))
# Ok, now we can overwrite the old cache
try:
out_file = open(mpath, 'w')
out_file.write(olist)
out_file.close()
except Exception, error:
raise IOError('Failed to temporarily cache overlays list in'
' ' + mpath + '\nError was:\n' + str(error))
except IOError, error:
self.output.warn('Failed to update the overlay list from: '
+ url + '\nError was:\n' + str(error))
def path(self, url):
'''Return a unique file name for the url.'''
base = self.config['cache']
self.output.debug('Generating cache path.', 6)
return base + '_' + hashlib.md5(url).hexdigest() + '.xml'
#===============================================================================
#
# Testing
#
#-------------------------------------------------------------------------------
if __name__ == '__main__':
import doctest, sys
# Ignore warnings here. We are just testing
from warnings import filterwarnings, resetwarnings
filterwarnings('ignore')
doctest.testmod(sys.modules[__name__])
resetwarnings()
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