def StartServer(self, request_data):
with self._server_state_mutex:
if self.ServerIsHealthy():
return
# Ensure we cleanup all states.
self._Reset()
LOGGER.info('Starting clangd: %s', self._clangd_command)
self._stderr_file = utils.CreateLogfile('clangd_stderr')
with utils.OpenForStdHandle(self._stderr_file) as stderr:
self._server_handle = utils.SafePopen(self._clangd_command,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=stderr)
self._connection = (
language_server_completer.StandardIOLanguageServerConnection(
self._server_handle.stdin, self._server_handle.stdout,
self.GetDefaultNotificationHandler()))
self._connection.Start()
try:
self._connection.AwaitServerConnection()
except language_server_completer.LanguageServerConnectionTimeout:
LOGGER.error('clangd failed to start, or did not connect '
'successfully')
self.Shutdown()
return
LOGGER.info('clangd started')
self.SendInitialize(request_data)
def _SetUpLogging(self):
def FreeFileFromOtherProcesses(file_object):
if utils.OnWindows():
from ctypes import windll
import msvcrt
file_handle = msvcrt.get_osfhandle(file_object.fileno())
windll.kernel32.SetHandleInformation(file_handle,
HANDLE_FLAG_INHERIT, 0)
self._client_logfile = utils.CreateLogfile(CLIENT_LOGFILE_FORMAT)
handler = logging.FileHandler(self._client_logfile)
# On Windows and Python prior to 3.4, file handles are inherited by child
# processes started with at least one replaced standard stream, which is the
# case when we start the ycmd server (we are redirecting all standard
# outputs into a pipe). These files cannot be removed while the child
# processes are still up. This is not desirable for a logfile because we
# want to remove it at Vim exit without having to wait for the ycmd server
# to be completely shut down. We need to make the logfile handle
# non-inheritable. See https://www.python.org/dev/peps/pep-0446 for more
# details.
FreeFileFromOtherProcesses(handler.stream)
formatter = logging.Formatter(
'%(asctime)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
self._logger.addHandler(handler)
def _StartServerNoLock( self ):
if self._ServerIsRunning():
return
self._logfile = utils.CreateLogfile( LOGFILE_FORMAT )
tsserver_log = f'-file { self._logfile } -level {_LogLevel()}'
# TSServer gets the configuration for the log file through the
# environment variable 'TSS_LOG'. This seems to be undocumented but
# looking at the source code it seems like this is the way:
# https://github.com/Microsoft/TypeScript/blob/8a93b489454fdcbdf544edef05f73a913449be1d/src/server/server.ts#L136
environ = os.environ.copy()
environ[ 'TSS_LOG' ] = tsserver_log
LOGGER.info( 'TSServer log file: %s', self._logfile )
# We need to redirect the error stream to the output one on Windows.
self._tsserver_handle = utils.SafePopen( self._tsserver_executable,
stdin = subprocess.PIPE,
stdout = subprocess.PIPE,
stderr = subprocess.STDOUT,
env = environ )
LOGGER.info( "TSServer started with PID %s", self._tsserver_handle.pid )
self._tsserver_is_running.set()
utils.StartThread( self._SetServerVersion )
def StartServer(self, request_data):
with self._server_state_mutex:
LOGGER.info('Starting %s: %s', self.GetServerName(),
self.GetCommandLine())
self._stderr_file = utils.CreateLogfile('{}_stderr'.format(
utils.MakeSafeFileNameString(self.GetServerName())))
with utils.OpenForStdHandle(self._stderr_file) as stderr:
self._server_handle = utils.SafePopen(self.GetCommandLine(),
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=stderr)
self._connection = (lsc.StandardIOLanguageServerConnection(
self._server_handle.stdin, self._server_handle.stdout,
self.GetDefaultNotificationHandler()))
self._connection.Start()
try:
self._connection.AwaitServerConnection()
except lsc.LanguageServerConnectionTimeout:
LOGGER.error(
'%s failed to start, or did not connect successfully',
self.GetServerName())
self.Shutdown()
return False
LOGGER.info('%s started', self.GetServerName())
return True
def _StartServer(self):
with self._tsserver_lock:
if self._ServerIsRunning():
return
self._logfile = utils.CreateLogfile(LOGFILE_FORMAT)
tsserver_log = '-file {path} -level {level}'.format(
path=self._logfile, level=_LogLevel())
# TSServer gets the configuration for the log file through the
# environment variable 'TSS_LOG'. This seems to be undocumented but
# looking at the source code it seems like this is the way:
# https://github.com/Microsoft/TypeScript/blob/8a93b489454fdcbdf544edef05f73a913449be1d/src/server/server.ts#L136
environ = os.environ.copy()
utils.SetEnviron(environ, 'TSS_LOG', tsserver_log)
_logger.info('TSServer log file: {0}'.format(self._logfile))
# We need to redirect the error stream to the output one on Windows.
self._tsserver_handle = utils.SafePopen(PATH_TO_TSSERVER,
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
env=environ)
self._tsserver_is_running.set()
utils.StartThread(self._SetServerVersion)
def _StartServer(self):
""" Start the OmniSharp server if not already running. Use a lock to avoid
starting the server multiple times for the same solution. """
with self._server_state_lock:
if self._ServerIsRunning():
return
LOGGER.info('Starting OmniSharp server')
LOGGER.info('Loading solution file %s', self._solution_path)
self._ChooseOmnisharpPort()
# Roslyn fails unless you open it in shell in Window on Python 2
# Shell isn't preferred, but I don't see any other way to resolve
shell_required = PY2 and utils.OnWindows()
command = [
PATH_TO_ROSLYN_OMNISHARP_BINARY, '-p',
str(self._omnisharp_port), '-s',
str(self._solution_path)
]
if (not utils.OnWindows()
and PATH_TO_ROSLYN_OMNISHARP_BINARY.endswith('.exe')):
command.insert(0, 'mono')
LOGGER.info('Starting OmniSharp server with: %s', command)
solutionfile = os.path.basename(self._solution_path)
self._filename_stdout = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._omnisharp_port,
sln=solutionfile,
std='stdout'))
self._filename_stderr = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._omnisharp_port,
sln=solutionfile,
std='stderr'))
with utils.OpenForStdHandle(self._filename_stderr) as fstderr:
with utils.OpenForStdHandle(self._filename_stdout) as fstdout:
self._omnisharp_phandle = utils.SafePopen(
command,
stdout=fstdout,
stderr=fstderr,
shell=shell_required)
LOGGER.info('Started OmniSharp server')
def _SetupServer(self):
self._available_completers = {}
self._user_notified_about_crash = False
self._filetypes_with_keywords_loaded = set()
self._server_is_ready_with_cache = False
server_port = utils.GetUnusedLocalhostPort()
# The temp options file is deleted by ycmd during startup
with NamedTemporaryFile(delete=False, mode='w+') as options_file:
hmac_secret = os.urandom(HMAC_SECRET_LENGTH)
options_dict = dict(self._user_options)
options_dict['hmac_secret'] = utils.ToUnicode(
base64.b64encode(hmac_secret))
options_dict['server_keep_logfiles'] = self._user_options[
'keep_logfiles']
json.dump(options_dict, options_file)
options_file.flush()
args = [
paths.PathToPythonInterpreter(),
paths.PathToServerScript(), '--port={0}'.format(server_port),
'--options_file={0}'.format(options_file.name),
'--log={0}'.format(self._user_options['log_level']),
'--idle_suicide_seconds={0}'.format(
SERVER_IDLE_SUICIDE_SECONDS)
]
self._server_stdout = utils.CreateLogfile(
SERVER_LOGFILE_FORMAT.format(port=server_port, std='stdout'))
self._server_stderr = utils.CreateLogfile(
SERVER_LOGFILE_FORMAT.format(port=server_port, std='stderr'))
args.append('--stdout={0}'.format(self._server_stdout))
args.append('--stderr={0}'.format(self._server_stderr))
if self._user_options['keep_logfiles']:
args.append('--keep_logfiles')
self._server_popen = utils.SafePopen(args,
stdin_windows=PIPE,
stdout=PIPE,
stderr=PIPE)
BaseRequest.server_location = 'http://127.0.0.1:' + str(
server_port)
BaseRequest.hmac_secret = hmac_secret
self._NotifyUserIfServerCrashed()
def _StartServer(self, request_data):
with self._server_state_mutex:
if self._server_started:
return
self._server_started = True
_logger.info('Starting jdt.ls Language Server...')
self._project_dir = _FindProjectDir(
os.path.dirname(request_data['filepath']))
self._workspace_path = _WorkspaceDirForProject(
self._project_dir, self._use_clean_workspace)
command = [
PATH_TO_JAVA,
'-Dfile.encoding=UTF-8',
'-Declipse.application=org.eclipse.jdt.ls.core.id1',
'-Dosgi.bundles.defaultStartLevel=4',
'-Declipse.product=org.eclipse.jdt.ls.core.product',
'-Dlog.level=ALL',
'-jar',
self._launcher_path,
'-configuration',
self._launcher_config,
'-data',
self._workspace_path,
]
_logger.debug('Starting java-server with the following command: '
'{0}'.format(' '.join(command)))
self._server_stderr = utils.CreateLogfile('jdt.ls_stderr_')
with utils.OpenForStdHandle(self._server_stderr) as stderr:
self._server_handle = utils.SafePopen(command,
stdin=PIPE,
stdout=PIPE,
stderr=stderr)
self._connection = (
language_server_completer.StandardIOLanguageServerConnection(
self._server_handle.stdin, self._server_handle.stdout,
self.GetDefaultNotificationHandler()))
self._connection.Start()
try:
self._connection.AwaitServerConnection()
except language_server_completer.LanguageServerConnectionTimeout:
_logger.error('jdt.ls failed to start, or did not connect '
'successfully')
self._StopServer()
return
_logger.info('jdt.ls Language Server started')
self.SendInitialize(request_data)
def _StartServer(self):
""" Start the OmniSharp server if not already running. Use a lock to avoid
starting the server multiple times for the same solution. """
with self._server_state_lock:
if self._ServerIsRunning():
return
self._logger.info('Starting OmniSharp server')
path_to_solutionfile = self._solution_path
self._logger.info(
u'Loading solution file {0}'.format(path_to_solutionfile))
self._ChooseOmnisharpPort()
command = [
PATH_TO_OMNISHARP_BINARY, '-p',
str(self._omnisharp_port), '-s',
u'{0}'.format(path_to_solutionfile)
]
if not utils.OnWindows() and not utils.OnCygwin():
command.insert(0, 'mono')
if utils.OnCygwin():
command.extend(['--client-path-mode', 'Cygwin'])
solutionfile = os.path.basename(path_to_solutionfile)
self._filename_stdout = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._omnisharp_port,
sln=solutionfile,
std='stdout'))
self._filename_stderr = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._omnisharp_port,
sln=solutionfile,
std='stderr'))
with utils.OpenForStdHandle(self._filename_stderr) as fstderr:
with utils.OpenForStdHandle(self._filename_stdout) as fstdout:
self._omnisharp_phandle = utils.SafePopen(command,
stdout=fstdout,
stderr=fstderr)
self._solution_path = path_to_solutionfile
def _StartServer(self):
""" Start the OmniSharp server if not already running. Use a lock to avoid
starting the server multiple times for the same solution. """
with self._server_state_lock:
if self._ServerIsRunning():
return
LOGGER.info('Starting OmniSharp server')
LOGGER.info('Loading solution file %s', self._solution_path)
self._ChooseOmnisharpPort()
command = [
PATH_TO_OMNISHARP_ROSLYN_BINARY, '-p',
str(self._omnisharp_port), '-s',
str(self._solution_path)
]
if (not utils.OnWindows() and self._roslyn_path.endswith('.exe')):
command.insert(0, 'mono')
LOGGER.info('Starting OmniSharp server with: %s', command)
solutionfile = os.path.basename(self._solution_path)
self._filename_stdout = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._omnisharp_port,
sln=solutionfile,
std='stdout'))
self._filename_stderr = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._omnisharp_port,
sln=solutionfile,
std='stderr'))
with utils.OpenForStdHandle(self._filename_stderr) as fstderr:
with utils.OpenForStdHandle(self._filename_stdout) as fstdout:
self._omnisharp_phandle = utils.SafePopen(command,
stdout=fstdout,
stderr=fstderr)
LOGGER.info('Started OmniSharp server')
def _StartServer(self):
with self._server_state_lock:
self._racerd_port = utils.GetUnusedLocalhostPort()
self._hmac_secret = self._CreateHmacSecret()
# racerd will delete the secret_file after it's done reading it
with tempfile.NamedTemporaryFile(delete=False) as secret_file:
secret_file.write(self._hmac_secret)
args = [
self._racerd_binary, 'serve', '--port',
str(self._racerd_port), '-l', '--secret-file',
secret_file.name
]
# Enable logging of crashes
env = os.environ.copy()
SetEnviron(env, 'RUST_BACKTRACE', '1')
if self._rust_source_path:
args.extend(['--rust-src-path', self._rust_source_path])
self._server_stdout = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._racerd_port, std='stdout'))
self._server_stderr = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._racerd_port, std='stderr'))
with utils.OpenForStdHandle(self._server_stderr) as fstderr:
with utils.OpenForStdHandle(self._server_stdout) as fstdout:
self._racerd_phandle = utils.SafePopen(args,
stdout=fstdout,
stderr=fstderr,
env=env)
self._racerd_host = 'http://127.0.0.1:{0}'.format(
self._racerd_port)
if not self._ServerIsRunning():
raise RuntimeError('Failed to start racerd!')
_logger.info('Racerd started on: ' + self._racerd_host)
def _StartServer(self, request_data, project_directory=None):
with self._server_state_mutex:
if self._server_started:
return
self._server_started = True
_logger.info('Starting dart Language Server...')
if project_directory:
self._project_dir = project_directory
else:
self._project_dir = _FindProjectDir(
os.path.dirname(request_data['filepath']))
self._workspace_path = self._project_dir
command = [
PATH_TO_DART,
'--force_trace_level=verbose',
]
_logger.debug('Starting dart-server with the following command: '
'{0}'.format(' '.join(command)))
self._server_stderr = utils.CreateLogfile('dart_stderr_')
with utils.OpenForStdHandle(self._server_stderr) as stderr:
self._server_handle = utils.SafePopen(command,
stdin=PIPE,
stdout=PIPE,
stderr=stderr)
self._connection = (
language_server_completer.StandardIOLanguageServerConnection(
self._server_handle.stdin, self._server_handle.stdout,
self.GetDefaultNotificationHandler()))
self._connection.Start()
try:
self._connection.AwaitServerConnection()
except language_server_completer.LanguageServerConnectionTimeout:
_logger.error('dart failed to start, or did not connect '
'successfully')
self._StopServer()
return
_logger.info('dart Language Server started')
self.SendInitialize(request_data)
def _StartServer(self, request_data):
with self._server_state_mutex:
if self._server_started:
return
self._server_started = True
_logger.info('Starting Vue Language Server')
command = [LANGUAGE_SERVER_HOME, '--stdio']
self._server_stderr = utils.CreateLogfile('vls_stderr_')
with utils.OpenForStdHandle(self._server_stderr) as stderr:
self._server_handle = utils.SafePopen(command,
stdin=PIPE,
stdout=PIPE,
stderr=stderr)
if not self._ServerIsRunning():
_logger.error('Vue Language Server failed to start')
return
_logger.info('Vue Language Server started')
self._connection = language_server_completer.StandardIOLanguageServerConnection(
self._server_handle.stdin, self._server_handle.stdout,
self.GetDefaultNotificationHandler())
self._connection.Start()
try:
self._connection.AwaitServerConnection()
except language_server_completer.LanguageServerConnectionTimeout:
_logger.error(
'Vue Language Server failed to start, or did not connect successfully'
)
self._StopServer()
return
self.SendInitialize(request_data)
def _SetUpServer(self):
self._available_completers = {}
self._user_notified_about_crash = False
self._filetypes_with_keywords_loaded = set()
self._server_is_ready_with_cache = False
self._message_poll_requests = {}
self._latest_completion_request = None
self._latest_signature_help_request = None
self._signature_help_available_requests = SigHelpAvailableByFileType()
self._latest_command_reqeust = None
self._signature_help_state = signature_help.SignatureHelpState()
self._user_options = base.GetUserOptions(self._default_options)
self._omnicomp = OmniCompleter(self._user_options)
self._buffers = BufferDict(self._user_options)
self._SetLogLevel()
hmac_secret = os.urandom(HMAC_SECRET_LENGTH)
options_dict = dict(self._user_options)
options_dict['hmac_secret'] = utils.ToUnicode(
base64.b64encode(hmac_secret))
options_dict['server_keep_logfiles'] = self._user_options[
'keep_logfiles']
# The temp options file is deleted by ycmd during startup.
with NamedTemporaryFile(delete=False, mode='w+') as options_file:
json.dump(options_dict, options_file)
server_port = utils.GetUnusedLocalhostPort()
BaseRequest.server_location = 'http://127.0.0.1:' + str(server_port)
BaseRequest.hmac_secret = hmac_secret
try:
python_interpreter = paths.PathToPythonInterpreter()
except RuntimeError as error:
error_message = (
f"Unable to start the ycmd server. { str( error ).rstrip( '.' ) }. "
"Correct the error then restart the server "
"with ':YcmRestartServer'.")
self._logger.exception(error_message)
vimsupport.PostVimMessage(error_message)
return
args = [
python_interpreter,
paths.PathToServerScript(), f'--port={ server_port }',
f'--options_file={ options_file.name }',
f'--log={ self._user_options[ "log_level" ] }',
f'--idle_suicide_seconds={ SERVER_IDLE_SUICIDE_SECONDS }'
]
self._server_stdout = utils.CreateLogfile(
SERVER_LOGFILE_FORMAT.format(port=server_port, std='stdout'))
self._server_stderr = utils.CreateLogfile(
SERVER_LOGFILE_FORMAT.format(port=server_port, std='stderr'))
args.append(f'--stdout={ self._server_stdout }')
args.append(f'--stderr={ self._server_stderr }')
if self._user_options['keep_logfiles']:
args.append('--keep_logfiles')
if 'YCM_WITH_PTVSD' in os.environ:
args[1:1] = [
'-m', 'ptvsd', '--host', 'localhost', '--port', '1234',
'--wait', '--no-subprocesses'
]
self._logger.debug('Starting ycmd with: %s', args)
self._server_popen = utils.SafePopen(args,
stdin_windows=PIPE,
stdout=PIPE,
stderr=PIPE)
def StartServer(self, request_data, project_directory=None):
with self._server_state_mutex:
if self._server_started:
return
# We have to get the settings before starting the server, as this call
# might throw UnknownExtraConf.
extra_conf_dir = self._GetSettingsFromExtraConf(request_data)
self._server_started = True
LOGGER.info('Starting jdt.ls Language Server...')
if project_directory:
self._java_project_dir = project_directory
else:
self._java_project_dir = _FindProjectDir(
os.path.dirname(request_data['filepath']))
self._workspace_path = _WorkspaceDirForProject(
self._java_project_dir, self._use_clean_workspace)
command = [
PATH_TO_JAVA,
'-Dfile.encoding=UTF-8',
'-Declipse.application=org.eclipse.jdt.ls.core.id1',
'-Dosgi.bundles.defaultStartLevel=4',
'-Declipse.product=org.eclipse.jdt.ls.core.product',
'-Dlog.level=ALL',
'-jar',
self._launcher_path,
'-configuration',
self._launcher_config,
'-data',
self._workspace_path,
]
LOGGER.debug('Starting java-server with the following command: %s',
command)
self._server_stderr = utils.CreateLogfile('jdt.ls_stderr_')
with utils.OpenForStdHandle(self._server_stderr) as stderr:
self._server_handle = utils.SafePopen(command,
stdin=PIPE,
stdout=PIPE,
stderr=stderr)
self._connection = (
language_server_completer.StandardIOLanguageServerConnection(
self._server_handle.stdin, self._server_handle.stdout,
self.GetDefaultNotificationHandler()))
self._connection.Start()
try:
self._connection.AwaitServerConnection()
except language_server_completer.LanguageServerConnectionTimeout:
LOGGER.error('jdt.ls failed to start, or did not connect '
'successfully')
self._StopServer()
return
LOGGER.info('jdt.ls Language Server started')
self.SendInitialize(request_data, extra_conf_dir=extra_conf_dir)
def _SetUpServer(self):
self._available_completers = {}
self._user_notified_about_crash = False
self._filetypes_with_keywords_loaded = set()
self._server_is_ready_with_cache = False
self._message_poll_requests = {}
self._user_options = base.GetUserOptions()
self._omnicomp = OmniCompleter(self._user_options)
self._buffers = BufferDict(self._user_options)
self._SetLogLevel()
hmac_secret = os.urandom(HMAC_SECRET_LENGTH)
options_dict = dict(self._user_options)
options_dict['hmac_secret'] = utils.ToUnicode(
base64.b64encode(hmac_secret))
options_dict['server_keep_logfiles'] = self._user_options[
'keep_logfiles']
# The temp options file is deleted by ycmd during startup.
with NamedTemporaryFile(delete=False, mode='w+') as options_file:
json.dump(options_dict, options_file)
server_port = utils.GetUnusedLocalhostPort()
BaseRequest.server_location = 'http://127.0.0.1:' + str(server_port)
BaseRequest.hmac_secret = hmac_secret
try:
python_interpreter = paths.PathToPythonInterpreter()
except RuntimeError as error:
error_message = ("Unable to start the ycmd server. {0}. "
"Correct the error then restart the server "
"with ':YcmRestartServer'.".format(
str(error).rstrip('.')))
self._logger.exception(error_message)
vimsupport.PostVimMessage(error_message)
return
args = [
python_interpreter,
paths.PathToServerScript(), '--port={0}'.format(server_port),
'--options_file={0}'.format(options_file.name),
'--log={0}'.format(self._user_options['log_level']),
'--idle_suicide_seconds={0}'.format(SERVER_IDLE_SUICIDE_SECONDS)
]
self._server_stdout = utils.CreateLogfile(
SERVER_LOGFILE_FORMAT.format(port=server_port, std='stdout'))
self._server_stderr = utils.CreateLogfile(
SERVER_LOGFILE_FORMAT.format(port=server_port, std='stderr'))
args.append('--stdout={0}'.format(self._server_stdout))
args.append('--stderr={0}'.format(self._server_stderr))
if self._user_options['keep_logfiles']:
args.append('--keep_logfiles')
self._server_popen = utils.SafePopen(args,
stdin_windows=PIPE,
stdout=PIPE,
stderr=PIPE)
def StartServer(self,
request_data,
project_directory=None,
wipe_workspace=False,
wipe_config=False):
with self._server_state_mutex:
LOGGER.info('Starting jdt.ls Language Server...')
if project_directory:
self._java_project_dir = project_directory
else:
self._java_project_dir = _FindProjectDir(
os.path.dirname(request_data['filepath']))
self._workspace_path = _WorkspaceDirForProject(
self._workspace_root_path, self._java_project_dir,
self._use_clean_workspace)
if not self._use_clean_workspace and wipe_workspace:
if os.path.isdir(self._workspace_path):
LOGGER.info('Wiping out workspace {0}'.format(
self._workspace_path))
shutil.rmtree(self._workspace_path)
self._launcher_config = _LauncherConfiguration(
self._workspace_root_path, wipe_config)
command = [
PATH_TO_JAVA,
'-Dfile.encoding=UTF-8',
'-Declipse.application=org.eclipse.jdt.ls.core.id1',
'-Dosgi.bundles.defaultStartLevel=4',
'-Declipse.product=org.eclipse.jdt.ls.core.product',
'-Dlog.level=ALL',
'-jar',
self._launcher_path,
'-configuration',
self._launcher_config,
'-data',
self._workspace_path,
]
LOGGER.debug('Starting java-server with the following command: %s',
command)
self._server_stderr = utils.CreateLogfile('jdt.ls_stderr_')
with utils.OpenForStdHandle(self._server_stderr) as stderr:
self._server_handle = utils.SafePopen(command,
stdin=PIPE,
stdout=PIPE,
stderr=stderr)
self._connection = (
language_server_completer.StandardIOLanguageServerConnection(
self._server_handle.stdin, self._server_handle.stdout,
self.GetDefaultNotificationHandler()))
self._connection.Start()
try:
self._connection.AwaitServerConnection()
except language_server_completer.LanguageServerConnectionTimeout:
LOGGER.error('jdt.ls failed to start, or did not connect '
'successfully')
self.Shutdown()
return False
LOGGER.info('jdt.ls Language Server started')
return True