/usr/lib/python2.7/dist-packages/trytond/modules/__init__.py is in tryton-server 3.8.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# this repository contains the full copyright notices and license terms.
import os
import sys
import itertools
import logging
from functools import reduce
import imp
import operator
import ConfigParser
from glob import iglob
from sql import Table
from sql.functions import CurrentTimestamp
import trytond.tools as tools
from trytond.config import config
from trytond.transaction import Transaction
from trytond.cache import Cache
from trytond import backend
import trytond.convert as convert
logger = logging.getLogger(__name__)
ir_module = Table('ir_module')
ir_model_data = Table('ir_model_data')
OPJ = os.path.join
MODULES_PATH = os.path.abspath(os.path.dirname(__file__))
MODULES = []
EGG_MODULES = {}
def update_egg_modules():
global EGG_MODULES
try:
import pkg_resources
for ep in pkg_resources.iter_entry_points('trytond.modules'):
mod_name = ep.module_name.split('.')[-1]
EGG_MODULES[mod_name] = ep
except ImportError:
pass
update_egg_modules()
class Graph(dict):
def add_node(self, name, deps):
for i in [Node(x, self) for x in deps]:
i.add_child(name)
if not deps:
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
def __str__(self):
res = ''
for i in self:
res += str(i)
res += '\n'
return res
class Singleton(object):
def __new__(cls, name, graph):
if name in graph:
inst = graph[name]
else:
inst = object.__new__(cls)
graph[name] = inst
return inst
class Node(Singleton):
def __init__(self, name, graph):
super(Node, self).__init__()
self.name = name
self.graph = graph
# __init__ is called even if Node already exists
if not hasattr(self, 'info'):
self.info = None
if not hasattr(self, 'childs'):
self.childs = []
if not hasattr(self, 'depth'):
self.depth = 0
def add_child(self, name):
node = Node(name, self.graph)
node.depth = max(self.depth + 1, node.depth)
if node not in self.all_childs():
self.childs.append(node)
self.childs.sort(key=operator.attrgetter('name'))
def all_childs(self):
res = []
for child in self.childs:
res.append(child)
res += child.all_childs()
return res
def has_child(self, name):
return Node(name, self.graph) in self.childs or \
bool([c for c in self.childs if c.has_child(name)])
def __setattr__(self, name, value):
super(Node, self).__setattr__(name, value)
if name == 'depth':
for child in self.childs:
setattr(child, name, value + 1)
def __iter__(self):
return itertools.chain(iter(self.childs),
*[iter(x) for x in self.childs])
def __str__(self):
return self.pprint()
def pprint(self, depth=0):
res = '%s\n' % self.name
for child in self.childs:
res += '%s`-> %s' % (' ' * depth, child.pprint(depth + 1))
return res
def get_module_info(name):
"Return the content of the tryton.cfg"
module_config = ConfigParser.ConfigParser()
with tools.file_open(os.path.join(name, 'tryton.cfg')) as fp:
module_config.readfp(fp)
directory = os.path.dirname(fp.name)
info = dict(module_config.items('tryton'))
info['directory'] = directory
for key in ('depends', 'extras_depend', 'xml'):
if key in info:
info[key] = info[key].strip().splitlines()
return info
def create_graph(module_list):
graph = Graph()
packages = []
for module in module_list:
info = get_module_info(module)
packages.append((module, info.get('depends', []),
info.get('extras_depend', []), info))
current, later = set([x[0] for x in packages]), set()
all_packages = set(current)
while packages and current > later:
package, deps, xdep, info = packages[0]
# if all dependencies of 'package' are already in the graph,
# add 'package' in the graph
all_deps = deps + [x for x in xdep if x in all_packages]
if reduce(lambda x, y: x and y in graph, all_deps, True):
if package not in current:
packages.pop(0)
continue
later.clear()
current.remove(package)
graph.add_node(package, all_deps)
node = Node(package, graph)
node.info = info
else:
later.add(package)
packages.append((package, deps, xdep, info))
packages.pop(0)
missings = set()
for package, deps, _, _ in packages:
if package not in later:
continue
missings |= set((x for x in deps if x not in graph))
if missings:
raise Exception('Missing dependencies: %s' % list(missings
- set((p[0] for p in packages))))
return graph, packages, later
def is_module_to_install(module, update):
if module in update:
return True
return False
def load_module_graph(graph, pool, update=None, lang=None):
if lang is None:
lang = [config.get('database', 'language')]
if update is None:
update = []
modules_todo = []
models_to_update_history = set()
cursor = Transaction().cursor
modules = [x.name for x in graph]
cursor.execute(*ir_module.select(ir_module.name, ir_module.state,
where=ir_module.name.in_(modules)))
module2state = dict(cursor.fetchall())
for package in graph:
module = package.name
if module not in MODULES:
continue
logger.info(module)
classes = pool.setup(module)
package_state = module2state.get(module, 'uninstalled')
if (is_module_to_install(module, update)
or package_state in ('to install', 'to upgrade')):
if package_state not in ('to install', 'to upgrade'):
if package_state == 'installed':
package_state = 'to upgrade'
elif package_state != 'to remove':
package_state = 'to install'
for child in package.childs:
module2state[child.name] = package_state
for type in classes.keys():
for cls in classes[type]:
logger.info('%s:register %s', module, cls.__name__)
cls.__register__(module)
for model in classes['model']:
if hasattr(model, '_history'):
models_to_update_history.add(model.__name__)
# Instanciate a new parser for the package:
tryton_parser = convert.TrytondXmlHandler(pool=pool, module=module,
module_state=package_state)
for filename in package.info.get('xml', []):
filename = filename.replace('/', os.sep)
logger.info('%s:loading %s', module, filename)
# Feed the parser with xml content:
with tools.file_open(OPJ(module, filename)) as fp:
tryton_parser.parse_xmlstream(fp)
modules_todo.append((module, list(tryton_parser.to_delete)))
localedir = '%s/%s' % (package.info['directory'], 'locale')
for filename in itertools.chain(
iglob('%s/*.po' % localedir),
iglob('%s/override/*.po' % localedir)):
filename = filename.replace('/', os.sep)
lang2 = os.path.splitext(os.path.basename(filename))[0]
if lang2 not in lang:
continue
logger.info('%s:loading %s', module,
filename[len(package.info['directory']) + 1:])
Translation = pool.get('ir.translation')
Translation.translation_import(lang2, module, filename)
if package_state == 'to remove':
continue
cursor.execute(*ir_module.select(ir_module.id,
where=(ir_module.name == package.name)))
try:
module_id, = cursor.fetchone()
cursor.execute(*ir_module.update([ir_module.state],
['installed'], where=(ir_module.id == module_id)))
except TypeError:
cursor.execute(*ir_module.insert(
[ir_module.create_uid, ir_module.create_date,
ir_module.name, ir_module.state],
[[0, CurrentTimestamp(), package.name, 'installed']]))
module2state[package.name] = 'installed'
cursor.commit()
for model_name in models_to_update_history:
model = pool.get(model_name)
if model._history:
logger.info('history:update %s', model.__name__)
model._update_history_table()
# Vacuum :
while modules_todo:
(module, to_delete) = modules_todo.pop()
convert.post_import(pool, module, to_delete)
cursor.commit()
def get_module_list():
module_list = set()
if os.path.exists(MODULES_PATH) and os.path.isdir(MODULES_PATH):
for file in os.listdir(MODULES_PATH):
if file.startswith('.'):
continue
if file == '__pycache__':
continue
if os.path.isdir(OPJ(MODULES_PATH, file)):
module_list.add(file)
update_egg_modules()
module_list.update(EGG_MODULES.keys())
module_list.add('ir')
module_list.add('res')
module_list.add('webdav')
module_list.add('tests')
return list(module_list)
def register_classes():
'''
Import modules to register the classes in the Pool
'''
import trytond.ir
trytond.ir.register()
import trytond.res
trytond.res.register()
import trytond.webdav
trytond.webdav.register()
import trytond.tests
trytond.tests.register()
for package in create_graph(get_module_list())[0]:
module = package.name
logger.info('%s:registering classes', module)
if module in ('ir', 'res', 'webdav', 'tests'):
MODULES.append(module)
continue
if os.path.isdir(OPJ(MODULES_PATH, module)):
mod_path = MODULES_PATH
elif module in EGG_MODULES:
ep = EGG_MODULES[module]
mod_path = os.path.join(ep.dist.location,
*ep.module_name.split('.')[:-1])
if not os.path.isdir(mod_path):
# Find module in path
for path in sys.path:
mod_path = os.path.join(path,
*ep.module_name.split('.')[:-1])
if os.path.isdir(os.path.join(mod_path, module)):
break
if not os.path.isdir(os.path.join(mod_path, module)):
# When testing modules from setuptools location is the
# module directory
mod_path = os.path.dirname(ep.dist.location)
else:
raise Exception('Couldn\'t find module %s' % module)
mod_file, pathname, description = imp.find_module(module,
[mod_path])
the_module = imp.load_module('trytond.modules.' + module,
mod_file, pathname, description)
# Some modules register nothing in the Pool
if hasattr(the_module, 'register'):
the_module.register()
if mod_file is not None:
mod_file.close()
MODULES.append(module)
def load_modules(database_name, pool, update=None, lang=None):
res = True
def _load_modules():
global res
TableHandler = backend.get('TableHandler')
cursor = Transaction().cursor
# Migration from 3.6: remove double module
old_table = 'ir_module_module'
new_table = 'ir_module'
if TableHandler.table_exist(cursor, old_table):
TableHandler.table_rename(cursor, old_table, new_table)
if update:
# Migration from 2.2: module workflow removed
# Migration from 3.2: module ldap_connection removed
obsolete_modules = ['workflow', 'ldap_connection']
cursor.execute(*ir_module.delete(
where=(ir_module.name.in_(obsolete_modules))))
cursor.execute(*ir_module.select(ir_module.name,
where=ir_module.state.in_(('installed', 'to install',
'to upgrade', 'to remove'))))
else:
cursor.execute(*ir_module.select(ir_module.name,
where=ir_module.state.in_(('installed', 'to upgrade',
'to remove'))))
module_list = [name for (name,) in cursor.fetchall()]
if update:
module_list += update
graph = create_graph(module_list)[0]
try:
load_module_graph(graph, pool, update, lang)
except Exception:
cursor.rollback()
raise
if update:
cursor.execute(*ir_module.select(ir_module.name,
where=(ir_module.state == 'to remove')))
fetchall = cursor.fetchall()
if fetchall:
for (mod_name,) in fetchall:
# TODO check if ressource not updated by the user
cursor.execute(*ir_model_data.select(ir_model_data.model,
ir_model_data.db_id,
where=(ir_model_data.module == mod_name),
order_by=ir_model_data.id.desc))
for rmod, rid in cursor.fetchall():
Model = pool.get(rmod)
Model.delete([Model(rid)])
cursor.commit()
cursor.execute(*ir_module.update([ir_module.state],
['uninstalled'],
where=(ir_module.state == 'to remove')))
cursor.commit()
res = False
Module = pool.get('ir.module')
Module.update_list()
cursor.commit()
Cache.resets(database_name)
if not Transaction().cursor:
with Transaction().start(database_name, 0):
_load_modules()
else:
with Transaction().new_cursor(), \
Transaction().set_user(0), \
Transaction().reset_context():
_load_modules()
return res
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