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import logging
import os
import imp
import itertools
import cherrypy
import openobject.tools.ast
from openobject import paths
class Graph(dict):
def addNode(self, name, deps):
max_depth, father = 0, None
for n in [Node(x, self) for x in deps]:
if n.depth >= max_depth:
father = n
max_depth = n.depth
if father:
father.addChild(name)
else:
Node(name, self)
def __iter__(self):
level = 0
done = set(self.keys())
while done:
level_modules = [(name, module) for name, module in self.items() if module.depth==level]
for name, module in level_modules:
done.remove(name)
yield module
level += 1
class Singleton(object):
def __new__(cls, name, graph):
if name in graph:
inst = graph[name]
else:
inst = object.__new__(cls)
inst.name = name
graph[name] = inst
return inst
class Node(Singleton):
def __init__(self, name, graph):
self.name = name
self.graph = graph
if not hasattr(self, 'children'):
self.children = []
if not hasattr(self, 'depth'):
self.depth = 0
def addChild(self, name):
node = Node(name, self.graph)
node.depth = self.depth + 1
if node not in self.children:
self.children.append(node)
for attr in ('init', 'update', 'demo'):
if hasattr(self, attr):
setattr(node, attr, True)
self.children.sort(lambda x, y: cmp(x.name, y.name))
def __setattr__(self, name, value):
super(Singleton, self).__setattr__(name, value)
if name in ('init', 'update', 'demo'):
import openobject.tools._utils as tools
tools.config[name][self.name] = 1
for child in self.children:
setattr(child, name, value)
if name == 'depth':
for child in self.children:
setattr(child, name, value + 1)
def __iter__(self):
return itertools.chain(iter(self.children), *map(iter, self.children))
def __str__(self):
return self._pprint()
def _pprint(self, depth=0):
s = '%s\n' % self.name
for c in self.children:
s += '%s`-> %s' % (' ' * depth, c._pprint(depth+1))
return s
def exists(module):
return os.path.exists(paths.addons(module, '__openerp__.py'))
def get_info(module):
mod_path = paths.addons(module)
if not os.path.isdir(mod_path):
return {}
terp_file = os.path.join(mod_path, '__openerp__.py')
if not os.path.isfile(terp_file):
return {}
try:
return openobject.tools.ast.literal_eval(open(terp_file).read())
except:
cherrypy.log('module %s: eval file %s' % (module, terp_file), "ERROR")
raise
def create_graph(module_list):
graph = Graph()
upgrade_graph(graph, module_list)
return graph
def upgrade_graph(graph, module_list):
packages = []
len_graph = len(graph)
for module in module_list:
info = get_info(module)
if info.get('installable', True):
packages.append((module, info.get('depends', []), info))
dependencies = dict([(p, deps) for p, deps, _ in packages])
current, later = set([p for p, _, _ in packages]), set()
while packages and current > later:
package, deps, data = packages[0]
# if all dependencies of 'package' are already in the graph, add 'package' in the graph
if reduce(lambda x, y: x and y in graph, deps, True):
if not package in current:
packages.pop(0)
continue
later.clear()
current.remove(package)
graph.addNode(package, deps)
node = Node(package, graph)
node.data = data
else:
later.add(package)
packages.append((package, deps, data))
packages.pop(0)
for package in later:
unmet_deps = filter(lambda p: p not in graph, dependencies[package])
cherrypy.log('module %s: Unmet dependencies: %s' % (package, ', '.join(unmet_deps)), "ERROR")
result = len(graph) - len_graph
if result != len(module_list):
cherrypy.log('Not all modules have loaded.', "ERROR")
return result
def imp_module(name):
fp, pathname, description = imp.find_module(name, [paths.addons()])
try:
return imp.load_module(name, fp, pathname, description)
finally:
if fp:
fp.close()
from openobject import i18n
from openobject import pooler
def load_module_graph(db_name, graph, config):
pool = pooler.get_pool()
for package in graph:
if package.name in _loaded_addons:
continue
cherrypy.log("Loading module '%s'" % package.name, "INFO")
imp_module(package.name)
static = paths.addons(package.name, 'static')
if os.path.isdir(static):
from openobject.widgets import register_resource_directory
register_resource_directory(config, package.name, static)
addon_path = paths.addons(package.name)
if os.path.isdir(paths.addons(package.name, 'po')):
i18n.load_translations(addon_path)
i18n.load_translations(addon_path, domain="javascript")
_loaded_addons[package.name] = True
for package in graph:
pool.load(package.name)
_loaded[db_name][package.name] = True
_loaded = {}
_loaded_addons = {}
def get_local_addons():
return [f for f in os.listdir(paths.addons()) \
if os.path.isfile(paths.addons(f, "__openerp__.py"))]
def load_addons(db_name, config):
if db_name in _loaded:
return
cherrypy.request.loading_addons = True
_loaded[db_name] = {}
base_addons = [m for m in get_local_addons() if get_info(m).get("active")]
graph = create_graph(base_addons)
load_module_graph(db_name, graph, config)
cherrypy.request.loading_addons = False
writeable = os.access(paths.addons(), os.W_OK)
if not writeable:
cherrypy.log.error(
"Can not write to the addons directory '%s', "
"will not be able to download web modules" % paths.addons(),
"WARNING", severity=logging.WARNING)
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