/usr/share/pyshared/ninja_ide/tools/completion/completion_daemon.py is in ninja-ide 2.3-2.
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 file is part of NINJA-IDE (http://ninja-ide.org).
#
# NINJA-IDE is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# any later version.
#
# NINJA-IDE is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with NINJA-IDE; If not, see <http://www.gnu.org/licenses/>.
import os
import time
from threading import Thread, Lock
from multiprocessing import Process, Queue
from ninja_ide.tools.completion import model
from ninja_ide.tools.completion import completer
from ninja_ide.tools.completion import analyzer
try:
unicode
except NameError:
# Python 3
basestring = unicode = str # lint:ok
__completion_daemon_instance = None
WAITING_BEFORE_START = 5
PROJECTS = {}
def CompletionDaemon():
global __completion_daemon_instance
if __completion_daemon_instance is None:
__completion_daemon_instance = __CompletionDaemon()
__completion_daemon_instance.start()
return __completion_daemon_instance
class __CompletionDaemon(Thread):
def __init__(self):
Thread.__init__(self)
self.analyzer = analyzer.Analyzer()
self.modules = {}
self.projects_modules = {}
self._relations = {}
self.reference_counter = 0
self.keep_alive = True
self.lock = Lock()
self.queue_receive = Queue()
self.queue_send = Queue()
self.daemon = _DaemonProcess(self.queue_send, self.queue_receive)
self.daemon.start()
def run(self):
global WAITING_BEFORE_START
time.sleep(WAITING_BEFORE_START)
while self.keep_alive:
path_id, module, resolve = self.queue_receive.get()
if path_id is None:
continue
self.lock.acquire()
self.modules[path_id] = module
self.lock.release()
if resolve:
resolution = self._resolve_with_other_modules(resolve)
self._relations[path_id] = []
for package in resolution:
self._relations[path_id].append(resolution[package])
self.queue_send.put((path_id, module, False, resolution))
def _resolve_with_other_modules(self, packages):
resolution = {}
for package in packages:
if package.find('(') != -1:
package = package[:package.index('(')]
if self.projects_modules.get(package, False):
folder = self.projects_modules[package]
filename = os.path.join(folder, '__init__.py')
if self._analyze_file(filename):
resolution[package] = filename
elif self.projects_modules.get(package.rsplit('.', 1)[0], False):
name = package.rsplit('.', 1)
folder = self.projects_modules[name[0]]
filename = "%s.py" % os.path.join(folder, name[1])
if os.path.isfile(filename):
if self._analyze_file(filename):
resolution[package] = filename
elif self.projects_modules.get(package.rsplit('.', 2)[0], False):
name = package.rsplit('.', 2)
folder = self.projects_modules[name[0]]
filename = "%s.py" % os.path.join(folder, name[1])
if os.path.isfile(filename):
if self._analyze_file(filename):
resolution[package.rsplit('.', 1)[0]] = filename
return resolution
def _analyze_file(self, filename):
try:
if filename not in self.modules:
source = ''
with open(filename) as f:
source = f.read()
module = self.analyzer.analyze(source)
self.inspect_module(filename, module, False)
return True
except Exception as reason:
print(reason)
return False
def unload_module(self, path_id):
relations = self._relations.pop(path_id, None)
if relations is not None:
relations.append(path_id)
for module in relations:
valid = False
for rel in self._relations:
other_modules = self._relations[rel]
if module in other_modules:
valid = True
if not valid:
self.modules.pop(module, None)
def process_path(self):
for project in PROJECTS:
if PROJECTS[project]:
continue
project = os.path.abspath(project)
package = os.path.basename(project)
self.projects_modules[package] = project
for root, dirs, files in os.walk(project, followlinks=True):
if '__init__.py' in files:
package = root[len(project) + 1:].replace(
os.path.sep, '.')
self.projects_modules[package] = root
def inspect_module(self, path_id, module, recursive=True):
self.lock.acquire()
self.modules[path_id] = module
self.lock.release()
self.queue_send.put((path_id, module, recursive, None))
def get_module(self, path_id):
return self.modules.get(path_id, None)
def _shutdown_process(self):
self.queue_send.put((None, None, None, None))
self.daemon.terminate()
self.queue_receive.put((None, None, None))
def force_stop(self):
self.keep_alive = False
self._shutdown_process()
for project in PROJECTS:
PROJECTS[project] = False
if self.is_alive():
self.join()
class _DaemonProcess(Process):
def __init__(self, queue_receive, queue_send):
super(_DaemonProcess, self).__init__()
self.queue_receive = queue_receive
self.queue_send = queue_send
self.iteration = 0
self.packages = []
def run(self):
while True:
self.iteration = 0
path_id, module, recursive, resolution = self.queue_receive.get()
if path_id is None and module is None:
break
try:
if resolution is not None:
self.packages = resolution
self.iteration = 2
self._resolve_module(module)
elif module.need_resolution():
self._resolve_module(module)
self.iteration = 1
self._resolve_module(module)
else:
continue
if self.packages and recursive:
self.queue_send.put((path_id, module, self.packages))
else:
self.queue_send.put((path_id, module, []))
except Exception as reason:
# Try to not die whatever happend
message = 'Daemon Fail with: %r', reason
print(message)
raise
finally:
self.packages = []
def _resolve_module(self, module):
self._resolve_attributes(module, module)
self._resolve_functions(module, module)
for cla in module.classes:
clazz = module.classes[cla]
self._resolve_inheritance(clazz, module)
self._resolve_attributes(clazz, module)
self._resolve_functions(clazz, module)
def _resolve_inheritance(self, clazz, module):
for base in clazz.bases:
name = base.split('.', 1)
main_attr = name[0]
child_attrs = ''
if len(name) == 2:
child_attrs = name[1]
result = module.get_type(main_attr, child_attrs)
data = model.late_resolution
if result.get('found', True):
data_type = module.imports[main_attr].get_data_type()
if child_attrs:
child_attrs = '.%s' % child_attrs
name = '%s%s().' % (data_type, child_attrs)
imports = module.get_imports()
imports = [imp.split('.')[0] for imp in imports]
data = completer.get_all_completions(name, imports)
data = (name, data)
elif result.get('object', False).__class__ is model.Clazz:
data = result['object']
clazz.bases[base] = data
clazz.update_with_parent_data()
def _resolve_functions(self, structure, module):
if structure.__class__ is model.Assign:
return
for func in structure.functions:
function = structure.functions[func]
self._resolve_attributes(function, module)
self._resolve_functions(function, module)
self._resolve_returns(function, module)
def _resolve_returns(self, structure, module):
if structure.__class__ is model.Assign:
return
self._resolve_types(structure.return_type, module, structure, 'return')
def _resolve_attributes(self, structure, module):
if structure.__class__ is model.Assign:
return
for attr in structure.attributes:
assign = structure.attributes[attr]
self._resolve_types(assign.data, module, assign)
def _resolve_types(self, types, module, structure=None, split_by='='):
if self.iteration == 0:
self._resolve_with_imports(types, module, split_by)
self._resolve_with_local_names(types, module, split_by)
elif self.iteration == 1:
self._resolve_with_local_vars(types, module, split_by, structure)
else:
self._resolve_with_linked_modules(types, module, structure)
def _resolve_with_linked_modules(self, types, module, structure):
for data in types:
name = data.data_type
if not isinstance(name, basestring):
continue
for package in self.packages:
if name.startswith(package):
to_resolve = name[len(package):]
if to_resolve and to_resolve[0] == '.':
to_resolve = to_resolve[1:]
path = self.packages[package]
linked = model.LinkedModule(path, to_resolve)
data.data_type = linked
break
def _resolve_with_imports(self, types, module, splitby):
for data in types:
if data.data_type != model.late_resolution:
continue
line = data.line_content
value = line.split(splitby)[1].strip().split('.')
name = value[0]
extra = ''
if name.find('(') != -1:
extra = name[name.index('('):]
name = name[:name.index('(')]
if name in module.imports:
value[0] = module.imports[name].data_type
package = '.'.join(value)
resolve = "%s%s" % (package, extra)
data.data_type = resolve
self.packages.append(package)
def _resolve_with_local_names(self, types, module, splitby):
#TODO: resolve with functions returns
for data in types:
if data.data_type != model.late_resolution:
continue
line = data.line_content
value = line.split(splitby)[1].split('(')[0].strip()
if value in module.classes:
clazz = module.classes[value]
data.data_type = clazz
def _resolve_with_local_vars(self, types, module, splitby, structure=None):
for data in types:
if data.data_type != model.late_resolution:
continue
line = data.line_content
value = line.split(splitby)[1].split('(')[0].strip()
sym = value.split('.')
if len(sym) != 0:
main_attr = sym[0]
if len(sym) > 2:
child_attr = '.'.join(sym[1:])
elif len(sym) == 2:
child_attr = sym[1]
else:
child_attr = ''
scope = []
self._get_scope(structure, scope)
if structure.__class__ is model.Assign:
scope.pop(0)
scope.reverse()
result = module.get_type(main_attr, child_attr, scope)
data_type = model.late_resolution
if isinstance(result['type'], basestring) and len(result) < 3:
if child_attr and \
structure.__class__ is not model.Function:
data_type = "%s.%s" % (result['type'], child_attr)
else:
data_type = result['type']
elif result.get('object', False):
data_type = result['object']
if data is not None:
data.data_type = data_type
def _get_scope(self, structure, scope):
if structure.__class__ not in (None, model.Module):
scope.append(structure.name)
self._get_scope(structure.parent, scope)
def shutdown_daemon():
daemon = CompletionDaemon()
daemon.force_stop()
global __completion_daemon_instance
__completion_daemon_instance = None
def add_project_folder(project_path):
global PROJECTS
if project_path not in PROJECTS:
PROJECTS[project_path] = False
daemon = CompletionDaemon()
daemon.process_path()
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