Files
tryton/trytond/module.py
T
Cédric Krier 22e109f45b Improve module import
- stop if one module couldn't be imported
- restrict import to module path
2008-07-26 12:50:40 +02:00

349 lines
12 KiB
Python

#This file is part of Tryton. The COPYRIGHT file at the top level of this repository contains the full copyright notices and license terms.
import os, sys, imp
import itertools
from sets import Set
from config import CONFIG
import tools
import pooler
from netsvc import Logger, LOG_ERROR, LOG_INFO
import zipfile
import zipimport
OPJ = os.path.join
MODULES_PATH = OPJ(os.path.dirname(__file__), 'modules')
sys.path.insert(1, MODULES_PATH)
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
if not hasattr(self, 'datas'):
self.datas = 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)
for attr in ('init', 'update'):
if hasattr(self, attr):
setattr(node, attr, True)
self.childs.sort(lambda x, y: cmp(x.name, y.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 in ('init', 'update'):
for child in self.childs:
setattr(child, 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 create_graph(module_list, force=None):
if force is None:
force = []
graph = Graph()
packages = []
for module in module_list:
if module[-4:] == '.zip':
module = module[:-4]
tryton_file = OPJ(MODULES_PATH, module, '__tryton__.py')
mod_path = OPJ(MODULES_PATH, module)
if module in ('ir', 'workflow', 'res', 'webdav'):
root_path = os.path.dirname(__file__)
tryton_file = OPJ(root_path, module, '__tryton__.py')
mod_path = OPJ(root_path, module)
if os.path.isfile(tryton_file) or zipfile.is_zipfile(mod_path+'.zip'):
try:
info = eval(tools.file_open(tryton_file).read())
except:
Logger().notify_channel('init', LOG_ERROR,
'module:%s:eval file %s' % (module, tryton_file))
raise
if info.get('installable', True):
packages.append((module, info.get('depends', []), info))
current, later = Set([x[0] for x in packages]), Set()
while packages and current > later:
package, deps, datas = 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.add_node(package, deps)
node = Node(package, graph)
node.datas = datas
for kind in ('init', 'update'):
if (package in CONFIG[kind]) \
or ('all' in CONFIG[kind]) \
or (kind in force):
setattr(node, kind, True)
else:
later.add(package)
packages.append((package, deps, datas))
packages.pop(0)
for package, deps, datas in packages:
if package not in later:
continue
missings = [x for x in deps if x not in graph]
Logger().notify_channel('init', LOG_ERROR,
'module:%s:Unmet dependency %s' % (package, missings))
return graph, packages, later
def init_module_objects(cursor, module_name, obj_list):
Logger().notify_channel('init', LOG_INFO,
'module:%s:creating or updating database tables' % module_name)
for obj in obj_list:
obj.auto_init(cursor, module_name)
def init_module_wizards(cursor, module_name, wizard_list):
Logger().notify_channel('init', LOG_INFO,
'module:%s:creating or updating wizards' % module_name)
for wizard in wizard_list:
wizard.auto_init(cursor, module_name)
def load_module_graph(cursor, graph, lang=None):
if lang is None:
lang = ['en_US']
modules_todo = []
for package in graph:
module = package.name
Logger().notify_channel('init', LOG_INFO, 'module:%s' % module)
sys.stdout.flush()
pool = pooler.get_pool(cursor.dbname)
modules = pool.instanciate(module)
pool_wizard = pooler.get_pool_wizard(cursor.dbname)
wizards = pool_wizard.instanciate(module, pool)
pool_report = pooler.get_pool_report(cursor.dbname)
reports = pool_report.instanciate(module, pool)
cursor.execute('SELECT state FROM ir_module_module WHERE name = %s',
(module,))
package_state = (cursor.rowcount and cursor.fetchone()[0]) \
or 'uninstalled'
idref = {}
if hasattr(package, 'init') \
or hasattr(package, 'update') \
or (package_state in ('to install', 'to upgrade')):
init_module_objects(cursor, module, modules)
init_module_wizards(cursor, module, wizards)
#Instanciate a new parser for the package:
tryton_parser = tools.TrytondXmlHandler(
cursor=cursor,
pool=pooler.get_pool(cursor.dbname),
module=module,)
for filename in package.datas.get('xml', []):
mode = 'update'
if hasattr(package, 'init') or package_state=='to install':
mode = 'init'
Logger().notify_channel('init', LOG_INFO,
'module:%s:loading %s' % (module, filename))
ext = os.path.splitext(filename)[1]
if ext == '.sql':
if mode == 'init':
queries = tools.file_open(OPJ(module,
filename)).read().split(';')
for query in queries:
new_query = ' '.join(query.split())
if new_query:
cursor.execute(new_query)
else:
# Feed the parser with xml content:
tryton_parser.parse_xmlstream(
tools.file_open(OPJ(module, filename)))
modules_todo.append((module, tryton_parser.to_delete))
for filename in package.datas.get('translation', []):
lang2 = os.path.splitext(filename)[0]
if lang2 not in lang:
continue
Logger().notify_channel('init', LOG_INFO,
'module:%s:loading %s' % (module, filename))
translation_obj = pool.get('ir.translation')
translation_obj.translation_import(cursor, 0, lang2, module,
tools.file_open(OPJ(module, filename)))
cursor.execute("UPDATE ir_module_module SET state = 'installed' " \
"WHERE name = %s", (package.name,))
cursor.commit()
# Vacuum :
while modules_todo:
(module, to_delete) = modules_todo.pop()
tools.post_import(cursor, module, to_delete)
cursor.commit()
def get_module_list():
if os.path.exists(MODULES_PATH) and os.path.isdir(MODULES_PATH):
module_list = os.listdir(MODULES_PATH)
else:
module_list = []
module_list.append('ir')
module_list.append('workflow')
module_list.append('res')
module_list.append('webdav')
return module_list
def register_classes():
import ir
import workflow
import res
import webdav
for package in create_graph(get_module_list())[0]:
module = package.name
Logger().notify_channel('init', LOG_INFO,
'module:%s:registering classes' % module)
if module in ('ir', 'workflow', 'res', 'webdav'):
continue
if not os.path.isfile(OPJ(MODULES_PATH, module+'.zip')):
try:
imp.load_module(module, *imp.find_module(module,
[MODULES_PATH]))
except ImportError:
Logger().notify_channel('init', LOG_ERROR,
'Couldn\'t import module %s' % module)
break
else:
mod_path = OPJ(MODULES_PATH, module+'.zip')
try:
zimp = zipimport.zipimporter(mod_path)
zimp.load_module(module)
except zipimport.ZipImportError:
Logger().notify_channel('init', LOG_ERROR,
'Couldn\'t import module %s' % module)
break
def load_modules(database, update_module=False, lang=None):
cursor = database.cursor()
force = []
if update_module:
cursor.execute("SELECT name FROM ir_module_module " \
"WHERE state IN ('installed', 'to install', " \
"'to upgrade', 'to remove')")
else:
cursor.execute("SELECT name FROM ir_module_module " \
"WHERE state IN ('installed', 'to upgrade', 'to remove')")
module_list = [name for (name,) in cursor.fetchall()]
for module in CONFIG['init'].keys():
if CONFIG['init'][module]:
module_list.append(module)
for module in CONFIG['update'].keys():
if CONFIG['update'][module]:
module_list.append(module)
graph = create_graph(module_list, force)[0]
try:
load_module_graph(cursor, graph, lang)
except:
cursor.close()
raise
for kind in ('init', 'update'):
CONFIG[kind] = {}
if update_module:
cursor.execute("SELECT name FROM ir_module_module " \
"WHERE state IN ('to remove')")
for (mod_name,) in cursor.fetchall():
pool = pooler.get_pool(cursor.dbname)
#TODO check if ressource not updated by the user
cursor.execute('SELECT model, db_id FROM ir_model_data ' \
'WHERE module = %s ' \
'ORDER BY id DESC', (mod_name,))
for rmod, rid in cursor.fetchall():
pool.get(rmod).delete(cursor, 0, rid)
cursor.commit()
cursor.execute("UPDATE ir_module_module SET state = %s " \
"WHERE state IN ('to remove')", ('uninstalled',))
cursor.commit()
pooler.restart_pool(cursor.dbname)
pool = pooler.get_pool(cursor.dbname)
module_obj = pool.get('ir.module.module')
module_obj.update_list(cursor, 0)
cursor.commit()
cursor.close()