def launch_worker(self, gui=False, redirect_output=None, job_name=None):
start = time.monotonic()
id = next(self.launched_worker_counter)
fd, rfile = tempfile.mkstemp(prefix='ipc_result_%d_%d_' %
(self.id, id),
dir=base_dir(),
suffix='.pickle')
os.close(fd)
if redirect_output is None:
redirect_output = not gui
env = {
'CALIBRE_WORKER_ADDRESS':
environ_item(as_hex_unicode(msgpack_dumps(self.address))),
'CALIBRE_WORKER_KEY':
environ_item(as_hex_unicode(self.auth_key)),
'CALIBRE_WORKER_RESULT':
environ_item(as_hex_unicode(rfile)),
}
cw = self.do_launch(env,
gui,
redirect_output,
rfile,
job_name=job_name)
if isinstance(cw, string_or_bytes):
raise CriticalError('Failed to launch worker process:\n' +
force_unicode(cw))
if DEBUG:
print(
'Worker Launch took: {:.2f} seconds'.format(time.monotonic() -
start))
return cw
def env(self):
if ispy3:
env = os.environ.copy()
else:
# We use this inefficient method of copying the environment variables
# because of non ascii env vars on windows. See https://bugs.launchpad.net/bugs/811191
env = {}
for key in os.environ:
try:
val = os.environ[key]
if isinstance(val, unicode_type):
# On windows subprocess cannot handle unicode env vars
try:
val = val.encode(filesystem_encoding)
except ValueError:
val = val.encode('utf-8')
if isinstance(key, unicode_type):
key = key.encode('ascii')
env[key] = val
except:
pass
env[native_string_type('CALIBRE_WORKER')] = environ_item('1')
td = as_hex_unicode(msgpack_dumps(base_dir()))
env[native_string_type('CALIBRE_WORKER_TEMP_DIR')] = environ_item(td)
env.update(self._env)
return env
def launch_worker(self, gui=False, redirect_output=None, job_name=None):
start = time.time()
with self._worker_launch_lock:
self.launched_worker_count += 1
id = self.launched_worker_count
fd, rfile = tempfile.mkstemp(prefix=u'ipc_result_%d_%d_' %
(self.id, id),
dir=base_dir(),
suffix=u'.pickle')
os.close(fd)
if redirect_output is None:
redirect_output = not gui
env = {
'CALIBRE_WORKER_ADDRESS':
environ_item(hexlify(msgpack_dumps(self.listener.address))),
'CALIBRE_WORKER_KEY':
environ_item(hexlify(self.auth_key)),
'CALIBRE_WORKER_RESULT':
environ_item(hexlify(rfile.encode('utf-8'))),
}
cw = self.do_launch(env,
gui,
redirect_output,
rfile,
job_name=job_name)
if isinstance(cw, string_or_bytes):
raise CriticalError('Failed to launch worker process:\n' + cw)
if DEBUG:
print('Worker Launch took:', time.time() - start)
return cw
def env(self):
env = os.environ.copy()
env[native_string_type('CALIBRE_WORKER')] = environ_item('1')
td = as_hex_unicode(msgpack_dumps(base_dir()))
env[native_string_type('CALIBRE_WORKER_TEMP_DIR')] = environ_item(td)
env.update(self._env)
return env
def env(self):
if ispy3:
env = os.environ.copy()
else:
# We use this inefficient method of copying the environment variables
# because of non ascii env vars on windows. See https://bugs.launchpad.net/bugs/811191
env = {}
for key in os.environ:
try:
val = os.environ[key]
if isinstance(val, unicode_type):
# On windows subprocess cannot handle unicode env vars
try:
val = val.encode(filesystem_encoding)
except ValueError:
val = val.encode('utf-8')
if isinstance(key, unicode_type):
key = key.encode('ascii')
env[key] = val
except:
pass
env[native_string_type('CALIBRE_WORKER')] = environ_item('1')
td = as_hex_unicode(msgpack_dumps(base_dir()))
env[native_string_type('CALIBRE_WORKER_TEMP_DIR')] = environ_item(td)
env.update(self._env)
return env
def create_worker(env, priority='normal', cwd=None, func='main'):
from calibre.utils.ipc.server import create_listener
auth_key = os.urandom(32)
address, listener = create_listener(auth_key)
env = dict(env)
env.update({
'CALIBRE_WORKER_ADDRESS': environ_item(as_hex_unicode(msgpack_dumps(address))),
'CALIBRE_WORKER_KEY': environ_item(as_hex_unicode(auth_key)),
'CALIBRE_SIMPLE_WORKER': environ_item('calibre.utils.ipc.simple_worker:%s' % func),
})
w = Worker(env)
w(cwd=cwd, priority=priority)
return listener, w
def create_worker(env, priority='normal', cwd=None, func='main'):
from calibre.utils.ipc.server import create_listener
auth_key = os.urandom(32)
address, listener = create_listener(auth_key)
env = dict(env)
env.update({
'CALIBRE_WORKER_ADDRESS': environ_item(as_hex_unicode(msgpack_dumps(address))),
'CALIBRE_WORKER_KEY': environ_item(as_hex_unicode(auth_key)),
'CALIBRE_SIMPLE_WORKER': environ_item('calibre.utils.ipc.simple_worker:%s' % func),
})
w = Worker(env)
w(cwd=cwd, priority=priority)
return listener, w
def windows_repair(library_path=None):
import subprocess
from calibre.utils.serialize import json_dumps, json_loads
from polyglot.binary import as_hex_unicode, from_hex_bytes
if library_path:
library_path = as_hex_unicode(json_dumps(library_path))
winutil.prepare_for_restart()
os.environ['CALIBRE_REPAIR_CORRUPTED_DB'] = environ_item(library_path)
subprocess.Popen([sys.executable])
else:
try:
app = Application([])
from calibre.gui2.dialogs.restore_library import repair_library_at
library_path = json_loads(
from_hex_bytes(os.environ.pop('CALIBRE_REPAIR_CORRUPTED_DB')))
done = repair_library_at(library_path, wait_time=4)
except Exception:
done = False
error_dialog(
None,
_('Failed to repair library'),
_('Could not repair library. Click "Show details" for more information.'
),
det_msg=traceback.format_exc(),
show=True)
if done:
subprocess.Popen([sys.executable])
app.quit()
def __call__(self, redirect_output=True, cwd=None, priority=None):
'''
If redirect_output is True, output from the child is redirected
to a file on disk and this method returns the path to that file.
'''
exe = self.gui_executable if self.gui else self.executable
env = self.env
try:
origwd = cwd or os.path.abspath(getcwd())
except EnvironmentError:
# cwd no longer exists
origwd = cwd or os.path.expanduser('~')
env[native_string_type('ORIGWD')] = environ_item(
as_hex_unicode(msgpack_dumps(origwd)))
_cwd = cwd
if priority is None:
priority = prefs['worker_process_priority']
cmd = [exe] if isinstance(exe, string_or_bytes) else exe
args = {
'env': env,
'cwd': _cwd,
}
if iswindows:
priority = {
'high': subprocess.HIGH_PRIORITY_CLASS,
'normal': subprocess.NORMAL_PRIORITY_CLASS,
'low': subprocess.IDLE_PRIORITY_CLASS
}[priority]
args['creationflags'] = subprocess.CREATE_NO_WINDOW | priority
else:
niceness = {
'normal': 0,
'low': 10,
'high': 20,
}[priority]
args['env']['CALIBRE_WORKER_NICENESS'] = str(niceness)
ret = None
if redirect_output:
self._file = PersistentTemporaryFile('_worker_redirect.log')
args['stdout'] = self._file._fd
args['stderr'] = subprocess.STDOUT
if iswindows:
args['stdin'] = subprocess.PIPE
ret = self._file.name
if iswindows and 'stdin' not in args:
# On windows when using the pythonw interpreter,
# stdout, stderr and stdin may not be valid
args['stdin'] = subprocess.PIPE
args['stdout'] = windows_null_file
args['stderr'] = subprocess.STDOUT
self.child = subprocess.Popen(cmd, **args)
if 'stdin' in args:
self.child.stdin.close()
self.log_path = ret
return ret
def run_in_debug_mode():
from calibre.debug import run_calibre_debug
import tempfile, subprocess
fd, logpath = tempfile.mkstemp('.txt')
os.close(fd)
os.environ['CALIBRE_RESTARTING_FROM_GUI'] = environ_item('1')
run_calibre_debug(
'--gui-debug', logpath, stdout=lopen(logpath, 'w'),
stderr=subprocess.STDOUT, stdin=lopen(os.devnull, 'r'))
def main():
fp, d = os.path.abspath(__file__), os.path.dirname
if 'CALIBRE_DEVELOP_FROM' not in os.environ:
env = os.environ.copy()
env['CALIBRE_DEVELOP_FROM'] = environ_item(d(d(d(d(d(fp))))))
subprocess.call(['calibre-debug', '-e', fp], env=env)
return
sys.path.insert(0, os.path.dirname(fp))
if 'wpd' in sys.modules:
del sys.modules['wpd']
import wpd
from calibre.constants import plugins
plugins._plugins['wpd'] = (wpd, '')
sys.path.pop(0)
# from calibre.devices.mtp.test import run
# run()
# return
from calibre.devices.winusb import scan_usb_devices
from calibre.devices.mtp.driver import MTP_DEVICE
dev = MTP_DEVICE(None)
dev.startup()
print(dev.wpd, dev.wpd_error)
try:
devices = scan_usb_devices()
pnp_id = dev.detect_managed_devices(devices)
if not pnp_id:
raise ValueError('Failed to detect device')
# pprint.pprint(dev.detected_devices)
print('Trying to connect to:', pnp_id)
dev.open(pnp_id, '')
pprint.pprint(dev.dev.data)
print('Connected to:', dev.get_gui_name())
print('Total space', dev.total_space())
print('Free space', dev.free_space())
# pprint.pprint(dev.dev.create_folder(dev.filesystem_cache.entries[0].object_id,
# 'zzz'))
# print ('Fetching file: oFF (198214 bytes)')
# stream = dev.get_file('oFF')
# print ("Fetched size: ", stream.tell())
# size = 4
# stream = io.BytesIO(b'a'*size)
# name = 'zzz-test-file.txt'
# stream.seek(0)
# f = dev.put_file(dev.filesystem_cache.entries[0], name, stream, size)
# print ('Put file:', f)
dev.filesystem_cache.dump()
finally:
dev.shutdown()
print('Device connection shutdown')
def main():
fp, d = os.path.abspath(__file__), os.path.dirname
if 'CALIBRE_DEVELOP_FROM' not in os.environ:
env = os.environ.copy()
env['CALIBRE_DEVELOP_FROM'] = environ_item(d(d(d(d(d(fp))))))
subprocess.call(['calibre-debug', '-e', fp], env=env)
return
sys.path.insert(0, os.path.dirname(fp))
if 'wpd' in sys.modules:
del sys.modules['wpd']
import wpd
from calibre.constants import plugins
plugins._plugins['wpd'] = (wpd, '')
sys.path.pop(0)
# from calibre.devices.mtp.test import run
# run()
# return
from calibre.devices.winusb import scan_usb_devices
from calibre.devices.mtp.driver import MTP_DEVICE
dev = MTP_DEVICE(None)
dev.startup()
print(dev.wpd, dev.wpd_error)
try:
devices = scan_usb_devices()
pnp_id = dev.detect_managed_devices(devices)
if not pnp_id:
raise ValueError('Failed to detect device')
# pprint.pprint(dev.detected_devices)
print('Trying to connect to:', pnp_id)
dev.open(pnp_id, '')
pprint.pprint(dev.dev.data)
print('Connected to:', dev.get_gui_name())
print('Total space', dev.total_space())
print('Free space', dev.free_space())
# pprint.pprint(dev.dev.create_folder(dev.filesystem_cache.entries[0].object_id,
# 'zzz'))
# print ('Fetching file: oFF (198214 bytes)')
# stream = dev.get_file('oFF')
# print ("Fetched size: ", stream.tell())
# size = 4
# stream = io.BytesIO(b'a'*size)
# name = 'zzz-test-file.txt'
# stream.seek(0)
# f = dev.put_file(dev.filesystem_cache.entries[0], name, stream, size)
# print ('Put file:', f)
dev.filesystem_cache.dump()
finally:
dev.shutdown()
print('Device connection shutdown')
def launch_worker(self, gui=False, redirect_output=None, job_name=None):
start = time.time()
with self._worker_launch_lock:
self.launched_worker_count += 1
id = self.launched_worker_count
fd, rfile = tempfile.mkstemp(prefix=u'ipc_result_%d_%d_'%(self.id, id),
dir=base_dir(), suffix=u'.pickle')
os.close(fd)
if redirect_output is None:
redirect_output = not gui
env = {
'CALIBRE_WORKER_ADDRESS' : environ_item(as_hex_unicode(msgpack_dumps(self.address))),
'CALIBRE_WORKER_KEY' : environ_item(as_hex_unicode(self.auth_key)),
'CALIBRE_WORKER_RESULT' : environ_item(as_hex_unicode(rfile)),
}
cw = self.do_launch(env, gui, redirect_output, rfile, job_name=job_name)
if isinstance(cw, string_or_bytes):
raise CriticalError('Failed to launch worker process:\n'+cw)
if DEBUG:
print('Worker Launch took:', time.time() - start)
return cw
def create_worker(env, priority='normal', cwd=None, func='main'):
env = dict(env)
a, b = Pipe()
with a:
env.update({
'CALIBRE_WORKER_FD':
str(a.fileno()),
'CALIBRE_SIMPLE_WORKER':
environ_item('calibre.utils.ipc.simple_worker:%s' % func),
})
w = Worker(env)
w(cwd=cwd, priority=priority, pass_fds=(a.fileno(), ))
return b, w
def do_launch(self, gui, redirect_output, rfile, job_name=None):
a, b = Pipe()
with a:
env = {
'CALIBRE_WORKER_FD': str(a.fileno()),
'CALIBRE_WORKER_RESULT': environ_item(as_hex_unicode(rfile))
}
w = Worker(env, gui=gui, job_name=job_name)
try:
w(pass_fds=(a.fileno(), ), redirect_output=redirect_output)
except BaseException:
try:
w.kill()
except:
pass
b.close()
import traceback
return traceback.format_exc()
return ConnectedWorker(w, b, rfile)
def windows_repair(library_path=None):
import subprocess
from calibre.utils.serialize import json_dumps, json_loads
from polyglot.binary import as_hex_unicode, from_hex_bytes
if library_path:
library_path = as_hex_unicode(json_dumps(library_path))
winutil.prepare_for_restart()
os.environ['CALIBRE_REPAIR_CORRUPTED_DB'] = environ_item(library_path)
subprocess.Popen([sys.executable])
else:
try:
app = Application([])
from calibre.gui2.dialogs.restore_library import repair_library_at
library_path = json_loads(from_hex_bytes(os.environ.pop('CALIBRE_REPAIR_CORRUPTED_DB')))
done = repair_library_at(library_path, wait_time=4)
except Exception:
done = False
error_dialog(None, _('Failed to repair library'), _(
'Could not repair library. Click "Show details" for more information.'), det_msg=traceback.format_exc(), show=True)
if done:
subprocess.Popen([sys.executable])
app.quit()
def __call__(self, redirect_output=True, cwd=None, priority=None):
'''
If redirect_output is True, output from the child is redirected
to a file on disk and this method returns the path to that file.
'''
exe = self.gui_executable if self.gui else self.executable
env = self.env
try:
origwd = cwd or os.path.abspath(os.getcwdu())
except EnvironmentError:
# cwd no longer exists
origwd = cwd or os.path.expanduser(u'~')
env[native_string_type('ORIGWD')] = environ_item(as_hex_unicode(msgpack_dumps(origwd)))
_cwd = cwd
if priority is None:
priority = prefs['worker_process_priority']
cmd = [exe] if isinstance(exe, string_or_bytes) else exe
args = {
'env' : env,
'cwd' : _cwd,
}
if iswindows:
priority = {
'high' : win32process.HIGH_PRIORITY_CLASS,
'normal' : win32process.NORMAL_PRIORITY_CLASS,
'low' : win32process.IDLE_PRIORITY_CLASS}[priority]
args['creationflags'] = win32process.CREATE_NO_WINDOW|priority
else:
niceness = {
'normal' : 0,
'low' : 10,
'high' : 20,
}[priority]
args['preexec_fn'] = partial(renice, niceness)
ret = None
if redirect_output:
self._file = PersistentTemporaryFile('_worker_redirect.log')
args['stdout'] = self._file._fd
args['stderr'] = subprocess.STDOUT
if iswindows:
args['stdin'] = subprocess.PIPE
ret = self._file.name
if iswindows and 'stdin' not in args:
# On windows when using the pythonw interpreter,
# stdout, stderr and stdin may not be valid
args['stdin'] = subprocess.PIPE
args['stdout'] = windows_null_file
args['stderr'] = subprocess.STDOUT
if not iswindows:
# Close inherited file descriptors in worker
# On windows, this is done in the worker process
# itself
args['close_fds'] = True
self.child = subprocess.Popen(cmd, **args)
if 'stdin' in args:
self.child.stdin.close()
self.log_path = ret
return ret
def run_gui(opts, args, listener, app, gui_debug=None):
si = singleinstance('db')
if not si:
ext = '.exe' if iswindows else ''
error_dialog(None, _('Cannot start calibre'), _(
'Another calibre program that can modify calibre libraries, such as,'
' {} or {} is already running. You must first shut it down, before'
' starting the main calibre program. If you are sure no such'
' program is running, try restarting your computer.').format(
'calibre-server' + ext, 'calibredb' + ext), show=True)
return 1
initialize_file_icon_provider()
app.load_builtin_fonts(scan_for_fonts=True)
if not dynamic.get('welcome_wizard_was_run', False):
from calibre.gui2.wizard import wizard
wizard().exec_()
dynamic.set('welcome_wizard_was_run', True)
from calibre.gui2.ui import Main
if isosx:
actions = tuple(Main.create_application_menubar())
else:
actions = tuple(Main.get_menubar_actions())
runner = GuiRunner(opts, args, actions, listener, app, gui_debug=gui_debug)
ret = app.exec_()
if getattr(runner.main, 'run_wizard_b4_shutdown', False):
from calibre.gui2.wizard import wizard
wizard().exec_()
if getattr(runner.main, 'restart_after_quit', False):
e = sys.executable if getattr(sys, 'frozen', False) else sys.argv[0]
if getattr(runner.main, 'debug_on_restart', False) or gui_debug is not None:
run_in_debug_mode()
else:
import subprocess
if hasattr(sys, 'frameworks_dir'):
app = os.path.dirname(os.path.dirname(os.path.realpath(sys.frameworks_dir)))
prints('Restarting with:', app)
subprocess.Popen('sleep 3s; open ' + shellquote(app), shell=True)
else:
os.environ['CALIBRE_RESTARTING_FROM_GUI'] = environ_item('1')
if iswindows and hasattr(winutil, 'prepare_for_restart'):
winutil.prepare_for_restart()
args = ['-g'] if os.path.splitext(e)[0].endswith('-debug') else []
prints('Restarting with:', ' '.join([e] + args))
subprocess.Popen([e] + args)
else:
if iswindows:
try:
runner.main.system_tray_icon.hide()
except:
pass
if getattr(runner.main, 'gui_debug', None) is not None:
e = sys.executable if getattr(sys, 'frozen', False) else sys.argv[0]
debugfile = runner.main.gui_debug
from calibre.gui2 import open_local_file
if iswindows:
with open(debugfile, 'r+b') as f:
raw = f.read()
raw = re.sub(b'(?<!\r)\n', b'\r\n', raw)
f.seek(0)
f.truncate()
f.write(raw)
open_local_file(debugfile)
return ret
isbsd = isfreebsd or isnetbsd or isdragonflybsd
ishaiku = 'haiku1' in _plat
islinux = not(iswindows or isosx or isbsd or ishaiku)
isfrozen = hasattr(sys, 'frozen')
isunix = isosx or islinux or ishaiku
isportable = hasenv('CALIBRE_PORTABLE_BUILD')
ispy3 = sys.version_info.major > 2
isxp = isoldvista = False
if iswindows:
wver = sys.getwindowsversion()
isxp = wver.major < 6
isoldvista = wver.build < 6002
is64bit = sys.maxsize > (1 << 32)
isworker = hasenv('CALIBRE_WORKER') or hasenv('CALIBRE_SIMPLE_WORKER')
if isworker:
os.environ.pop(environ_item('CALIBRE_FORCE_ANSI'), None)
FAKE_PROTOCOL, FAKE_HOST = 'https', 'calibre-internal.invalid'
VIEWER_APP_UID = 'com.calibre-ebook.viewer'
EDITOR_APP_UID = 'com.calibre-ebook.edit-book'
MAIN_APP_UID = 'com.calibre-ebook.main-gui'
try:
preferred_encoding = locale.getpreferredencoding()
codecs.lookup(preferred_encoding)
except:
preferred_encoding = 'utf-8'
win32event = importlib.import_module('win32event') if iswindows else None
winerror = importlib.import_module('winerror') if iswindows else None
win32api = importlib.import_module('win32api') if iswindows else None
fcntl = None if iswindows else importlib.import_module('fcntl')
def main(args=sys.argv):
if os.environ.pop('CALIBRE_RESTARTING_FROM_GUI', None) == environ_item('1'):
time.sleep(2) # give the parent process time to cleanup and close
if iswindows and 'CALIBRE_REPAIR_CORRUPTED_DB' in os.environ:
windows_repair()
return 0
gui_debug = None
if args[0] == '__CALIBRE_GUI_DEBUG__':
gui_debug = args[1]
args = ['calibre']
if iswindows:
# Ensure that all ebook editor instances are grouped together in the task
# bar. This prevents them from being grouped with viewer process when
# launched from within calibre, as both use calibre-parallel.exe
set_app_uid(MAIN_APP_UID)
try:
app, opts, args = init_qt(args)
except AbortInit:
return 1
try:
si = singleinstance(singleinstance_name)
except Exception:
error_dialog(None, _('Cannot start calibre'), _(
'Failed to start calibre, single instance locking failed. Click "Show Details" for more information'),
det_msg=traceback.format_exc(), show=True)
return 1
if si and opts.shutdown_running_calibre:
return 0
if si:
try:
listener = create_listener()
except socket.error:
if iswindows or islinux:
cant_start(det_msg=traceback.format_exc(), listener_failed=True)
if os.path.exists(gui_socket_address()):
os.remove(gui_socket_address())
try:
listener = create_listener()
except socket.error:
cant_start(det_msg=traceback.format_exc(), listener_failed=True)
else:
return run_gui(opts, args, listener, app,
gui_debug=gui_debug)
else:
return run_gui(opts, args, listener, app,
gui_debug=gui_debug)
otherinstance = False
try:
listener = create_listener()
except socket.error: # Good singleinstance is correct (on UNIX)
otherinstance = True
else:
# On windows only singleinstance can be trusted
otherinstance = True if iswindows else False
if not otherinstance and not opts.shutdown_running_calibre:
return run_gui(opts, args, listener, app, gui_debug=gui_debug)
communicate(opts, args)
return 0
def run_gui(opts, args, listener, app, gui_debug=None):
si = singleinstance('db')
if not si:
ext = '.exe' if iswindows else ''
error_dialog(
None,
_('Cannot start calibre'),
_('Another calibre program that can modify calibre libraries, such as,'
' {} or {} is already running. You must first shut it down, before'
' starting the main calibre program. If you are sure no such'
' program is running, try restarting your computer.').format(
'calibre-server' + ext, 'calibredb' + ext),
show=True)
return 1
initialize_file_icon_provider()
app.load_builtin_fonts(scan_for_fonts=True)
if not dynamic.get('welcome_wizard_was_run', False):
from calibre.gui2.wizard import wizard
wizard().exec_()
dynamic.set('welcome_wizard_was_run', True)
from calibre.gui2.ui import Main
if isosx:
actions = tuple(Main.create_application_menubar())
else:
actions = tuple(Main.get_menubar_actions())
runner = GuiRunner(opts, args, actions, listener, app, gui_debug=gui_debug)
ret = app.exec_()
if getattr(runner.main, 'run_wizard_b4_shutdown', False):
from calibre.gui2.wizard import wizard
wizard().exec_()
if getattr(runner.main, 'restart_after_quit', False):
e = sys.executable if getattr(sys, 'frozen', False) else sys.argv[0]
if getattr(runner.main, 'debug_on_restart',
False) or gui_debug is not None:
run_in_debug_mode()
else:
if hasattr(sys, 'frameworks_dir'):
app = os.path.dirname(
os.path.dirname(os.path.realpath(sys.frameworks_dir)))
from calibre.debug import run_calibre_debug
prints('Restarting with:', app)
run_calibre_debug(
'-c',
'import sys, os, time; time.sleep(3); os.execlp("open", "open", sys.argv[-1])',
app)
else:
import subprocess
os.environ['CALIBRE_RESTARTING_FROM_GUI'] = environ_item('1')
if iswindows and hasattr(winutil, 'prepare_for_restart'):
winutil.prepare_for_restart()
if hasattr(sys, 'run_local'):
cmd = [sys.run_local]
if DEBUG:
cmd += ['calibre-debug', '-g']
else:
cmd.append('calibre')
else:
args = [
'-g'
] if os.path.splitext(e)[0].endswith('-debug') else []
cmd = [e] + args
prints('Restarting with:', ' '.join(cmd))
subprocess.Popen(cmd)
else:
if iswindows:
try:
runner.main.system_tray_icon.hide()
except:
pass
if getattr(runner.main, 'gui_debug', None) is not None:
e = sys.executable if getattr(sys, 'frozen', False) else sys.argv[0]
debugfile = runner.main.gui_debug
from calibre.gui2 import open_local_file
if iswindows:
with open(debugfile, 'r+b') as f:
raw = f.read()
raw = re.sub(b'(?<!\r)\n', b'\r\n', raw)
f.seek(0)
f.truncate()
f.write(raw)
open_local_file(debugfile)
return ret
def main(args=sys.argv):
if os.environ.pop('CALIBRE_RESTARTING_FROM_GUI',
None) == environ_item('1'):
time.sleep(2) # give the parent process time to cleanup and close
if iswindows and 'CALIBRE_REPAIR_CORRUPTED_DB' in os.environ:
windows_repair()
return 0
gui_debug = None
if args[0] == '__CALIBRE_GUI_DEBUG__':
gui_debug = args[1]
args = ['calibre']
try:
app, opts, args = init_qt(args)
except AbortInit:
return 1
try:
si = singleinstance(singleinstance_name)
except Exception:
error_dialog(
None,
_('Cannot start calibre'),
_('Failed to start calibre, single instance locking failed. Click "Show Details" for more information'
),
det_msg=traceback.format_exc(),
show=True)
return 1
if si and opts.shutdown_running_calibre:
return 0
if si:
try:
listener = create_listener()
except socket.error:
if iswindows or islinux:
cant_start(det_msg=traceback.format_exc(),
listener_failed=True)
if os.path.exists(gui_socket_address()):
os.remove(gui_socket_address())
try:
listener = create_listener()
except socket.error:
cant_start(det_msg=traceback.format_exc(),
listener_failed=True)
else:
return run_gui(opts, args, listener, app, gui_debug=gui_debug)
else:
return run_gui(opts, args, listener, app, gui_debug=gui_debug)
otherinstance = False
try:
listener = create_listener()
except socket.error: # Good singleinstance is correct (on UNIX)
otherinstance = True
else:
# On windows only singleinstance can be trusted
otherinstance = True if iswindows else False
if not otherinstance and not opts.shutdown_running_calibre:
return run_gui(opts, args, listener, app, gui_debug=gui_debug)
communicate(opts, args)
return 0
isbsd = isfreebsd or isnetbsd or isdragonflybsd
ishaiku = 'haiku1' in _plat
islinux = not(iswindows or isosx or isbsd or ishaiku)
isfrozen = hasattr(sys, 'frozen')
isunix = isosx or islinux or ishaiku
isportable = hasenv('CALIBRE_PORTABLE_BUILD')
ispy3 = sys.version_info.major > 2
isxp = isoldvista = False
if iswindows:
wver = sys.getwindowsversion()
isxp = wver.major < 6
isoldvista = wver.build < 6002
is64bit = sys.maxsize > (1 << 32)
isworker = hasenv('CALIBRE_WORKER') or hasenv('CALIBRE_SIMPLE_WORKER')
if isworker:
os.environ.pop(environ_item('CALIBRE_FORCE_ANSI'), None)
FAKE_PROTOCOL, FAKE_HOST = 'https', 'calibre-internal.invalid'
VIEWER_APP_UID = 'com.calibre-ebook.viewer'
EDITOR_APP_UID = 'com.calibre-ebook.edit-book'
MAIN_APP_UID = 'com.calibre-ebook.main-gui'
try:
preferred_encoding = locale.getpreferredencoding()
codecs.lookup(preferred_encoding)
except:
preferred_encoding = 'utf-8'
win32event = importlib.import_module('win32event') if iswindows else None
winerror = importlib.import_module('winerror') if iswindows else None
win32api = importlib.import_module('win32api') if iswindows else None
fcntl = None if iswindows else importlib.import_module('fcntl')