def GetReady():
LOGGER.info( 'Received ready request' )
if request.query.subserver:
filetype = request.query.subserver
completer = _server_state.GetFiletypeCompleter( [ filetype ] )
return _JsonResponse( completer.ServerIsReady() )
return _JsonResponse( True )
def _ChooseOmnisharpPort( self ):
if not self._omnisharp_port:
if self._desired_omnisharp_port:
self._omnisharp_port = int( self._desired_omnisharp_port )
else:
self._omnisharp_port = utils.GetUnusedLocalhostPort()
LOGGER.info( 'using port %s', self._omnisharp_port )
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 __init__(self, user_options):
self.user_options = user_options
self.min_num_chars = user_options['min_num_of_chars_for_completion']
self.max_diagnostics_to_display = user_options[
'max_diagnostics_to_display']
self.completion_triggers = (completer_utils.PreparedTriggers(
user_trigger_map=user_options['semantic_triggers'],
filetype_set=set(self.SupportedFiletypes()))
if user_options['auto_trigger'] else None)
self._signature_triggers = (
completer_utils.PreparedTriggers(
user_trigger_map=
{}, # user triggers not supported for signature help
filetype_set=set(self.SupportedFiletypes()),
default_triggers={})
if not user_options['disable_signature_help'] else None)
self._completions_cache = CompletionsCache()
self._max_candidates = user_options['max_num_candidates']
self._max_candidates_to_detail = user_options[
'max_num_candidates_to_detail']
LOGGER.info(f"Completion config: { self._max_candidates }, detailing "
f"{ self._max_candidates_to_detail } candiates")
def ShouldEnableCsCompleter(user_options):
roslyn = FindExecutableWithFallback(user_options['roslyn_binary_path'],
PATH_TO_OMNISHARP_ROSLYN_BINARY)
if roslyn:
return True
LOGGER.info('No omnisharp-roslyn executable at %s', roslyn)
return False
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 _CallGlobalExtraConfMethod( function_name ):
global_ycm_extra_conf = _GlobalYcmExtraConfFileLocation()
if not ( global_ycm_extra_conf and
os.path.exists( global_ycm_extra_conf ) ):
LOGGER.debug( 'No global extra conf, not calling method %s', function_name )
return
try:
module = Load( global_ycm_extra_conf, force = True )
except Exception:
LOGGER.exception( 'Error occurred while loading global extra conf %s',
global_ycm_extra_conf )
return
if not module or not hasattr( module, function_name ):
LOGGER.debug( 'Global extra conf not loaded or no function %s',
function_name )
return
try:
LOGGER.info( 'Calling global extra conf method %s on conf file %s',
function_name,
global_ycm_extra_conf )
getattr( module, function_name )()
except Exception:
LOGGER.exception(
'Error occurred while calling global extra conf method %s '
'on conf file %s', function_name, global_ycm_extra_conf )
def PollModule(module, filepath):
""" Try to use passed module in the selection process by calling
CSharpSolutionFile on it """
path_to_solutionfile = None
module_hint = None
if module:
try:
module_hint = module.CSharpSolutionFile(filepath)
LOGGER.info('extra_conf_store suggests %s as solution file',
module_hint)
if module_hint:
# received a full path or one relative to the config's location?
candidates = [
module_hint,
os.path.join(os.path.dirname(getfile(module)), module_hint)
]
# try the assumptions
for path in candidates:
if os.path.isfile(path):
# path seems to point to a solution
path_to_solutionfile = path
LOGGER.info(
'Using solution file %s selected by extra_conf_store',
path_to_solutionfile)
break
except AttributeError:
# the config script might not provide solution file locations
LOGGER.exception(
'Could not retrieve solution for %s'
'from extra_conf_store', filepath)
return path_to_solutionfile
def GetClangdExecutableAndResourceDir(user_options):
"""Return the Clangd binary from the path specified in the
'clangd_binary_path' option. Let the binary find its resource directory in
that case. If no binary is found or if it's out-of-date, return nothing. If
'clangd_binary_path' is empty, return the third-party Clangd and its resource
directory if the user downloaded it and if it's up to date. Otherwise, return
nothing."""
clangd = user_options['clangd_binary_path']
resource_dir = None
if clangd:
clangd = FindExecutable(ExpandVariablesInPath(clangd))
if not clangd:
LOGGER.error('No Clangd executable found at %s',
user_options['clangd_binary_path'])
return None, None
if not CheckClangdVersion(clangd):
LOGGER.error('Clangd at %s is out-of-date', clangd)
return None, None
# Try looking for the pre-built binary.
else:
third_party_clangd = GetThirdPartyClangd()
if not third_party_clangd:
return None, None
clangd = third_party_clangd
resource_dir = CLANG_RESOURCE_DIR
LOGGER.info('Using Clangd from %s', clangd)
return clangd, resource_dir
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
# TSServer runs out of memory on larger projects. This is the value that
# VSCode uses.
environ['NODE_OPTIONS'] = '--max_old_space_size=3072'
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 GetClangdCommand(user_options):
global CLANGD_COMMAND
# None stands for we tried to fetch command and failed, therefore it is not
# the default.
if CLANGD_COMMAND != NOT_CACHED:
LOGGER.info('Returning cached Clangd command: %s', CLANGD_COMMAND)
return CLANGD_COMMAND
CLANGD_COMMAND = None
installed_clangd, resource_dir = GetClangdExecutableAndResourceDir(
user_options)
if not installed_clangd:
return None
CLANGD_COMMAND = [installed_clangd]
clangd_args = user_options['clangd_args']
put_resource_dir = False
put_limit_results = False
put_header_insertion_decorators = False
for arg in clangd_args:
CLANGD_COMMAND.append(arg)
put_resource_dir = put_resource_dir or arg.startswith('-resource-dir')
put_limit_results = put_limit_results or arg.startswith(
'-limit-results')
put_header_insertion_decorators = (
put_header_insertion_decorators
or arg.startswith('-header-insertion-decorators'))
if not put_header_insertion_decorators:
CLANGD_COMMAND.append('-header-insertion-decorators=0')
if resource_dir and not put_resource_dir:
CLANGD_COMMAND.append('-resource-dir=' + resource_dir)
if user_options['clangd_uses_ycmd_caching'] and not put_limit_results:
CLANGD_COMMAND.append('-limit-results=500')
return CLANGD_COMMAND
def _ReaderLoop( self ):
"""
Read responses from TSServer and use them to resolve
the DeferredResponse instances.
"""
while True:
self._tsserver_is_running.wait()
try:
message = self._ReadMessage()
except ( RuntimeError, ValueError ):
LOGGER.exception( 'Error while reading message from server' )
if not self._ServerIsRunning():
self._tsserver_is_running.clear()
continue
# We ignore events for now since we don't have a use for them.
msgtype = message[ 'type' ]
if msgtype == 'event':
eventname = message[ 'event' ]
LOGGER.info( 'Received %s event from TSServer', eventname )
continue
if msgtype != 'response':
LOGGER.error( 'Unsupported message type', msgtype )
continue
seq = message[ 'request_seq' ]
with self._pending_lock:
if seq in self._pending:
self._pending[ seq ].resolve( message )
del self._pending[ seq ]
def _StartServer(self):
"""Start the Gocode server."""
with self._gocode_lock:
LOGGER.info('Starting Gocode server')
self._gocode_port = utils.GetUnusedLocalhostPort()
self._gocode_host = '127.0.0.1:{0}'.format(self._gocode_port)
command = [
self._gocode_binary_path, '-s', '-sock', 'tcp', '-addr',
self._gocode_host
]
if LOGGER.isEnabledFor(logging.DEBUG):
command.append('-debug')
self._gocode_stdout = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._gocode_port, std='stdout'))
self._gocode_stderr = utils.CreateLogfile(
LOGFILE_FORMAT.format(port=self._gocode_port, std='stderr'))
with utils.OpenForStdHandle(self._gocode_stdout) as stdout:
with utils.OpenForStdHandle(self._gocode_stderr) as stderr:
self._gocode_handle = utils.SafePopen(command,
stdout=stdout,
stderr=stderr)
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: %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 )
self._tsserver_is_running.set()
utils.StartThread( self._SetServerVersion )
def PollModule( module, filepath ):
""" Try to use passed module in the selection process by calling
CSharpSolutionFile on it """
path_to_solutionfile = None
module_hint = None
if module:
try:
module_hint = module.CSharpSolutionFile( filepath )
LOGGER.info( 'extra_conf_store suggests %s as solution file',
module_hint )
if module_hint:
# received a full path or one relative to the config's location?
candidates = [ module_hint,
os.path.join( os.path.dirname( getfile( module ) ),
module_hint ) ]
# try the assumptions
for path in candidates:
if os.path.isfile( path ):
# path seems to point to a solution
path_to_solutionfile = path
LOGGER.info( 'Using solution file %s selected by extra_conf_store',
path_to_solutionfile )
break
except AttributeError:
# the config script might not provide solution file locations
LOGGER.exception( 'Could not retrieve solution for %s'
'from extra_conf_store', filepath )
return path_to_solutionfile
def _ReaderLoop(self):
"""
Read responses from TSServer and use them to resolve
the DeferredResponse instances.
"""
while True:
self._tsserver_is_running.wait()
try:
message = self._ReadMessage()
except (RuntimeError, ValueError):
LOGGER.exception('Error while reading message from server')
if not self._ServerIsRunning():
self._tsserver_is_running.clear()
continue
# We ignore events for now since we don't have a use for them.
msgtype = message['type']
if msgtype == 'event':
eventname = message['event']
LOGGER.info('Received %s event from TSServer', eventname)
continue
if msgtype != 'response':
LOGGER.error('Unsupported message type', msgtype)
continue
seq = message['request_seq']
with self._pending_lock:
if seq in self._pending:
self._pending[seq].resolve(message)
del self._pending[seq]
def GetSemanticTokens():
LOGGER.info('Received semantic tokens request')
request_data = RequestWrap(request.json)
if not _server_state.FiletypeCompletionUsable(request_data['filetypes'],
silent=True):
return _JsonResponse(BuildSemanticTokensResponse(None))
errors = None
semantic_tokens = None
try:
filetype_completer = _server_state.GetFiletypeCompleter(
request_data['filetypes'])
semantic_tokens = filetype_completer.ComputeSemanticTokens(
request_data)
except Exception as exception:
LOGGER.exception(
'Exception from semantic completer during tokens request')
errors = [BuildExceptionResponse(exception, traceback.format_exc())]
# No fallback for signature help. The general completer is unlikely to be able
# to offer anything of for that here.
return _JsonResponse(
BuildSemanticTokensResponse(semantic_tokens, errors=errors))
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()
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)
self._tsserver_is_running.set()
utils.StartThread(self._SetServerVersion)
def ShouldEnableRustCompleter():
if not RLS_EXECUTABLE:
LOGGER.error('Not using Rust completer: no RLS executable found at %s',
RLS_EXECUTABLE)
return False
LOGGER.info('Using Rust completer')
return True
def _CallGlobalExtraConfMethod(function_name):
global_ycm_extra_conf = _GlobalYcmExtraConfFileLocation()
if not (global_ycm_extra_conf and os.path.exists(global_ycm_extra_conf)):
LOGGER.debug('No global extra conf, not calling method %s',
function_name)
return
try:
module = Load(global_ycm_extra_conf, force=True)
except Exception:
LOGGER.exception('Error occurred while loading global extra conf %s',
global_ycm_extra_conf)
return
if not module or not hasattr(module, function_name):
LOGGER.debug('Global extra conf not loaded or no function %s',
function_name)
return
try:
LOGGER.info('Calling global extra conf method %s on conf file %s',
function_name, global_ycm_extra_conf)
getattr(module, function_name)()
except Exception:
LOGGER.exception(
'Error occurred while calling global extra conf method %s '
'on conf file %s', function_name, global_ycm_extra_conf)
def GetClangdExecutableAndResourceDir( user_options ):
"""Return the Clangd binary from the path specified in the
'clangd_binary_path' option. Let the binary find its resource directory in
that case. If no binary is found or if it's out-of-date, return nothing. If
'clangd_binary_path' is empty, return the third-party Clangd and its resource
directory if the user downloaded it and if it's up to date. Otherwise, return
nothing."""
clangd = user_options[ 'clangd_binary_path' ]
resource_dir = None
if clangd:
clangd = FindExecutable( ExpandVariablesInPath( clangd ) )
if not clangd:
LOGGER.error( 'No Clangd executable found at %s',
user_options[ 'clangd_binary_path' ] )
return None, None
if not CheckClangdVersion( clangd ):
LOGGER.error( 'Clangd at %s is out-of-date', clangd )
return None, None
# Try looking for the pre-built binary.
else:
third_party_clangd = GetThirdPartyClangd()
if not third_party_clangd:
return None, None
clangd = third_party_clangd
resource_dir = CLANG_RESOURCE_DIR
LOGGER.info( 'Using Clangd from %s', clangd )
return clangd, resource_dir
def GetReady():
LOGGER.info('Received ready request')
if request.query.subserver:
filetype = request.query.subserver
completer = _server_state.GetFiletypeCompleter([filetype])
return _JsonResponse(completer.ServerIsReady())
return _JsonResponse(True)
def RunCompleterCommand():
LOGGER.info( 'Received command request' )
request_data = RequestWrap( request.json )
completer = _GetCompleterForRequestData( request_data )
return _JsonResponse( completer.OnUserCommand(
request_data[ 'command_arguments' ],
request_data ) )
def RunCompleterCommand():
LOGGER.info('Received command request')
request_data = RequestWrap(request.json)
completer = _GetCompleterForRequestData(request_data)
return _JsonResponse(
completer.OnUserCommand(request_data['command_arguments'],
request_data))
def ShouldEnableTypeScriptCompleter():
tsserver = FindTSServer()
if not tsserver:
LOGGER.error( 'Not using TypeScript completer: TSServer not installed '
'in %s', TSSERVER_DIR )
return False
LOGGER.info( 'Using TypeScript completer with %s', tsserver )
return True
def ShouldEnableTypeScriptCompleter( user_options ):
tsserver = FindTSServer( user_options[ 'tsserver_binary_path' ] )
if not tsserver:
LOGGER.error( 'Not using TypeScript completer: TSServer not installed '
'in %s', TSSERVER_DIR )
return False
LOGGER.info( 'Using TypeScript completer with %s', tsserver )
return True
def StartServer(self, request_data, project_directory=None):
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._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.Shutdown()
return False
LOGGER.info('jdt.ls Language Server started')
return True
def StartServer( self, request_data, project_directory = None ):
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._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.Shutdown()
return False
LOGGER.info( 'jdt.ls Language Server started' )
return True
def _AddIdentifier(self, identifier, request_data):
filetype = request_data['first_filetype']
filepath = request_data['filepath']
if not filetype or not filepath or not identifier:
return
LOGGER.info('Adding ONE buffer identifier for file: %s', filepath)
self._completer.AddSingleIdentifierToDatabase(identifier, filetype,
filepath)
def _AddIdentifier(self, identifier, request_data):
filetype = request_data['first_filetype']
filepath = request_data['filepath']
if not filetype or not filepath or not identifier:
return
LOGGER.info('Adding ONE buffer identifier for file: %s', filepath)
self._completer.AddIdentifiersToDatabase(
ycm_core.StringVector([identifier]), filetype, filepath)
def StartServer(self,
request_data,
project_directory=None,
wipe_workspace=False,
wipe_config=False):
try:
with self._server_info_mutex:
LOGGER.info('Starting jdt.ls Language Server...')
if project_directory:
self._java_project_dir = project_directory
elif 'project_directory' in self._settings:
self._java_project_dir = utils.AbsolutePath(
self._settings['project_directory'],
self._extra_conf_dir)
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(
f'Wiping out workspace { self._workspace_path }')
shutil.rmtree(self._workspace_path)
self._launcher_config = _LauncherConfiguration(
self._workspace_root_path, wipe_config)
self._command = [
PATH_TO_JAVA
] + self._GetJvmArgs(request_data) + [
'-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,
]
return super(JavaCompleter,
self)._StartServerNoLock(request_data)
except language_server_completer.LanguageServerConnectionTimeout:
LOGGER.error('%s failed to start, or did not connect successfully',
self.GetServerName())
self.Shutdown()
return False
def FilterAndSortCandidates():
LOGGER.info('Received filter & sort request')
# Not using RequestWrap because no need and the requests coming in aren't like
# the usual requests we handle.
request_data = request.json
return _JsonResponse(
FilterAndSortCandidatesWrap(
request_data['candidates'], request_data['sort_property'],
request_data['query'],
_server_state.user_options['max_num_candidates']))
def GetThirdPartyClangd():
pre_built_clangd = GetExecutable( PRE_BUILT_CLANDG_PATH )
if not pre_built_clangd:
LOGGER.info( 'No Clangd executable found in %s', PRE_BUILT_CLANGD_DIR )
return None
if not CheckClangdVersion( pre_built_clangd ):
LOGGER.error( 'Clangd executable at %s is out-of-date', pre_built_clangd )
return None
LOGGER.info( 'Clangd executable found at %s and up to date',
PRE_BUILT_CLANGD_DIR )
return pre_built_clangd
def GetThirdPartyClangd():
pre_built_clangd = GetExecutable( PRE_BUILT_CLANDG_PATH )
if not pre_built_clangd:
LOGGER.info( 'No Clangd executable found in %s', PRE_BUILT_CLANGD_DIR )
return None
if not CheckClangdVersion( pre_built_clangd ):
LOGGER.error( 'Clangd executable at %s is out-of-date', pre_built_clangd )
return None
LOGGER.info( 'Clangd executable found at %s and up to date',
PRE_BUILT_CLANGD_DIR )
return pre_built_clangd
def FilterAndSortCandidates():
LOGGER.info( 'Received filter & sort request' )
# Not using RequestWrap because no need and the requests coming in aren't like
# the usual requests we handle.
request_data = request.json
return _JsonResponse( FilterAndSortCandidatesWrap(
request_data[ 'candidates' ],
request_data[ 'sort_property' ],
request_data[ 'query' ],
_server_state.user_options[ 'max_num_candidates' ] ) )
def HandleNotificationInPollThread( self, notification ):
if notification[ 'method' ] == 'language/status':
message_type = notification[ 'params' ][ 'type' ]
if message_type == 'Started':
LOGGER.info( 'jdt.ls initialized successfully' )
self._received_ready_message.set()
self._server_init_status = notification[ 'params' ][ 'message' ]
super( JavaCompleter, self ).HandleNotificationInPollThread( notification )
def HandleNotificationInPollThread( self, notification ):
if notification[ 'method' ] == 'language/status':
message_type = notification[ 'params' ][ 'type' ]
if message_type == 'Started':
LOGGER.info( 'jdt.ls initialized successfully' )
self._server_init_status = notification[ 'params' ][ 'message' ]
self._received_ready_message.set()
elif not self._received_ready_message.is_set():
self._server_init_status = notification[ 'params' ][ 'message' ]
super( JavaCompleter, self ).HandleNotificationInPollThread( notification )
def _StopServer( self ):
with self._server_state_lock:
if self._racerd_phandle:
LOGGER.info( 'Stopping Racerd with PID %s', self._racerd_phandle.pid )
self._racerd_phandle.terminate()
try:
utils.WaitUntilProcessIsTerminated( self._racerd_phandle,
timeout = 5 )
LOGGER.info( 'Racerd stopped' )
except RuntimeError:
LOGGER.exception( 'Error while stopping Racerd' )
self._CleanUp()
def _AddIdentifier(self, identifier, request_data):
filetype = request_data['first_filetype']
filepath = request_data['filepath']
if not filetype or not filepath or not identifier:
return
vector = ycm_core.StringVector()
vector.append(ToCppStringCompatible(identifier))
LOGGER.info('Adding ONE buffer identifier for file: %s', filepath)
self._completer.AddIdentifiersToDatabase(
vector, ToCppStringCompatible(filetype),
ToCppStringCompatible(filepath))
def _StopServerNoLock(self):
if self._ServerIsRunning():
LOGGER.info('Stopping Tern server with PID %s',
self._server_handle.pid)
self._server_handle.terminate()
try:
utils.WaitUntilProcessIsTerminated(self._server_handle,
timeout=5)
LOGGER.info('Tern server stopped')
except RuntimeError:
LOGGER.exception('Error while stopping Tern server')
self._CleanUp()
def ResolveCompletionItem():
LOGGER.info("Received resolve request")
request_data = RequestWrap(request.json)
completer = _GetCompleterForRequestData(request_data)
errors = None
completion = None
try:
completion = completer.ResolveCompletionItem(request_data)
except Exception as e:
errors = [BuildExceptionResponse(e, traceback.format_exc())]
return _JsonResponse(BuildResolveCompletionResponse(completion, errors))
def _StopServerNoLock( self ):
if self._ServerIsRunning():
LOGGER.info( 'Stopping TSServer with PID %s',
self._tsserver_handle.pid )
try:
self._SendCommand( 'exit' )
utils.WaitUntilProcessIsTerminated( self._tsserver_handle,
timeout = 5 )
LOGGER.info( 'TSServer stopped' )
except Exception:
LOGGER.exception( 'Error while stopping TSServer' )
self._CleanUp()
def ShouldEnableRustCompleter(user_options):
if GetExecutable(user_options['rls_binary_path']):
if GetExecutable(user_options['rustc_binary_path']):
return True
else:
LOGGER.error(
'rustc_binary_path not specified, rls_binary_path ignored')
if not RLS_EXECUTABLE:
LOGGER.error('Not using Rust completer: no RLS executable found at %s',
RLS_EXECUTABLE)
return False
LOGGER.info('Using Rust completer')
return True
def _StopServer( self ):
with self._tsserver_lock:
if self._ServerIsRunning():
LOGGER.info( 'Stopping TSServer with PID %s',
self._tsserver_handle.pid )
try:
self._SendCommand( 'exit' )
utils.WaitUntilProcessIsTerminated( self._tsserver_handle,
timeout = 5 )
LOGGER.info( 'TSServer stopped' )
except Exception:
LOGGER.exception( 'Error while stopping TSServer' )
self._CleanUp()
def _AddIdentifier( self, identifier, request_data ):
filetype = request_data[ 'first_filetype' ]
filepath = request_data[ 'filepath' ]
if not filetype or not filepath or not identifier:
return
vector = ycm_core.StringVector()
vector.append( ToCppStringCompatible( identifier ) )
LOGGER.info( 'Adding ONE buffer identifier for file: %s', filepath )
self._completer.AddIdentifiersToDatabase(
vector,
ToCppStringCompatible( filetype ),
ToCppStringCompatible( filepath ) )
def _StopServer( self ):
with self._server_state_mutex:
if self._ServerIsRunning():
LOGGER.info( 'Stopping Tern server with PID %s',
self._server_handle.pid )
self._server_handle.terminate()
try:
utils.WaitUntilProcessIsTerminated( self._server_handle,
timeout = 5 )
LOGGER.info( 'Tern server stopped' )
except RuntimeError:
LOGGER.exception( 'Error while stopping Tern server' )
self._CleanUp()
def _WatchdogMain( self ):
while True:
time.sleep( self._check_interval_seconds )
# We make sure we don't terminate if we skipped a wakeup time. If we
# skipped a check, that means the machine probably went to sleep and the
# client might still actually be up. In such cases, we give it one more
# wait interval to contact us before we die.
if ( self._TimeSinceLastRequest() > self._idle_suicide_seconds and
self._TimeSinceLastWakeup() < 2 * self._check_interval_seconds ):
LOGGER.info( 'Shutting down server due to inactivity' )
ServerShutdown()
self._UpdateLastWakeupTime()
def ShouldEnableClangdCompleter( user_options ):
"""Checks whether clangd should be enabled or not.
- Returns True iff an up-to-date binary exists either in `clangd_binary_path`
or in third party folder and `use_clangd` is not set to `0`.
"""
# User disabled clangd explicitly.
if not user_options[ 'use_clangd' ]:
return False
clangd_command = GetClangdCommand( user_options )
if not clangd_command:
return False
LOGGER.info( 'Computed Clangd command: %s', clangd_command )
return True
def _SetServerProjectFileAndWorkingDirectory( self, request_data ):
filepath = request_data[ 'filepath' ]
self._server_project_file, is_project = FindTernProjectFile( filepath )
working_dir = request_data.get( 'working_dir',
utils.GetCurrentDirectory() )
if not self._server_project_file:
LOGGER.warning( 'No .tern-project file detected: %s', filepath )
self._server_working_dir = working_dir
else:
LOGGER.info( 'Detected Tern configuration file at: %s',
self._server_project_file )
self._server_working_dir = (
os.path.dirname( self._server_project_file ) if is_project else
working_dir )
LOGGER.info( 'Tern paths are relative to: %s', self._server_working_dir )
def ShouldEnableClangdCompleter( user_options ):
third_party_clangd = Get3rdPartyClangd()
# User disabled clangd explicitly.
if user_options[ 'use_clangd' ].lower() == 'never':
return False
# User haven't downloaded clangd and use_clangd is in auto mode.
if not third_party_clangd and user_options[ 'use_clangd' ].lower() == 'auto':
return False
clangd_command = GetClangdCommand( user_options, third_party_clangd )
if not clangd_command:
LOGGER.warning( 'Not using clangd: unable to find clangd binary' )
return False
LOGGER.info( 'Using clangd from %s', clangd_command )
return True
def ShouldEnableJavaCompleter():
LOGGER.info( 'Looking for jdt.ls' )
if not PATH_TO_JAVA:
LOGGER.warning( "Not enabling java completion: Couldn't find java" )
return False
if not os.path.exists( LANGUAGE_SERVER_HOME ):
LOGGER.warning( 'Not using java completion: jdt.ls is not installed' )
return False
if not _PathToLauncherJar():
LOGGER.warning( 'Not using java completion: jdt.ls is not built' )
return False
return True
def _StopServer( self ):
""" Stop the OmniSharp server using a lock. """
with self._server_state_lock:
if self._ServerIsRunning():
LOGGER.info( 'Stopping OmniSharp server with PID %s',
self._omnisharp_phandle.pid )
try:
self._GetResponse( '/stopserver' )
utils.WaitUntilProcessIsTerminated( self._omnisharp_phandle,
timeout = 5 )
LOGGER.info( 'OmniSharp server stopped' )
except Exception:
LOGGER.exception( 'Error while stopping OmniSharp server' )
self._CleanUp()
def wrapper( *args, **kwargs ):
if not HostHeaderCorrect( request ):
LOGGER.info( 'Dropping request with bad Host header' )
abort( requests.codes.unauthorized,
'Unauthorized, received bad Host header.' )
return
body = ToBytes( request.body.read() )
if not RequestAuthenticated( request.method, request.path, body,
self._hmac_secret ):
LOGGER.info( 'Dropping request with bad HMAC' )
abort( requests.codes.unauthorized, 'Unauthorized, received bad HMAC.' )
return
body = callback( *args, **kwargs )
SetHmacHeader( body, self._hmac_secret )
return body
def _AddBufferIdentifiers( self, request_data ):
filetype = request_data[ 'first_filetype' ]
filepath = request_data[ 'filepath' ]
if not filetype or not filepath:
return
collect_from_comments_and_strings = bool( self.user_options[
'collect_identifiers_from_comments_and_strings' ] )
text = request_data[ 'file_data' ][ filepath ][ 'contents' ]
LOGGER.info( 'Adding buffer identifiers for file: %s', filepath )
self._completer.ClearForFileAndAddIdentifiersToDatabase(
_IdentifiersFromBuffer( text,
filetype,
collect_from_comments_and_strings ),
ToCppStringCompatible( filetype ),
ToCppStringCompatible( filepath ) )
def GetClangdCommand( user_options, third_party_clangd ):
"""Get commands to run clangd.
Look through binaries reachable through PATH or pre-built ones.
Return None if no binary exists or it is out of date. """
global CLANGD_COMMAND
# None stands for we tried to fetch command and failed, therefore it is not
# the default.
if CLANGD_COMMAND != NOT_CACHED:
LOGGER.info( 'Returning cached clangd: %s', CLANGD_COMMAND )
return CLANGD_COMMAND
CLANGD_COMMAND = None
resource_dir = None
installed_clangd = user_options[ 'clangd_binary_path' ]
if not CheckClangdVersion( installed_clangd ):
if installed_clangd:
LOGGER.warning( 'Clangd at %s is out-of-date, trying to use pre-built '
'version', installed_clangd )
# Try looking for the pre-built binary.
if not third_party_clangd:
return None
installed_clangd = third_party_clangd
resource_dir = CLANG_RESOURCE_DIR
# We have a clangd binary that is executable and up-to-date at this point.
CLANGD_COMMAND = [ installed_clangd ]
clangd_args = user_options[ 'clangd_args' ]
put_resource_dir = False
put_limit_results = False
put_header_insertion_decorators = False
for arg in clangd_args:
CLANGD_COMMAND.append( arg )
put_resource_dir = put_resource_dir or arg.startswith( '-resource-dir' )
put_limit_results = put_limit_results or arg.startswith( '-limit-results' )
put_header_insertion_decorators = ( put_header_insertion_decorators or
arg.startswith( '-header-insertion-decorators' ) )
if not put_header_insertion_decorators:
CLANGD_COMMAND.append( '-header-insertion-decorators=0' )
if resource_dir and not put_resource_dir:
CLANGD_COMMAND.append( '-resource-dir=' + resource_dir )
if user_options[ 'clangd_uses_ycmd_caching' ] and not put_limit_results:
CLANGD_COMMAND.append( '-limit-results=500' )
return CLANGD_COMMAND
def EventNotification():
LOGGER.info( 'Received event notification' )
request_data = RequestWrap( request.json )
event_name = request_data[ 'event_name' ]
LOGGER.debug( 'Event name: %s', event_name )
event_handler = 'On' + event_name
getattr( _server_state.GetGeneralCompleter(), event_handler )( request_data )
filetypes = request_data[ 'filetypes' ]
response_data = None
if _server_state.FiletypeCompletionUsable( filetypes ):
response_data = getattr( _server_state.GetFiletypeCompleter( filetypes ),
event_handler )( request_data )
if response_data:
return _JsonResponse( response_data )
return _JsonResponse( {} )
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' )
path_to_solutionfile = self._solution_path
LOGGER.info( 'Loading solution file %s', 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 ShouldEnableTernCompleter():
"""Returns whether or not the tern completer is 'installed'. That is whether
or not the tern submodule has a 'node_modules' directory. This is pretty much
the only way we can know if the user added '--js-completer' on
install or manually ran 'npm install' in the tern submodule directory."""
if not PATH_TO_NODE:
LOGGER.warning( 'Not using Tern completer: unable to find node' )
return False
LOGGER.info( 'Using node binary from: %s', PATH_TO_NODE )
installed = os.path.exists( PATH_TO_TERN_BINARY )
if not installed:
LOGGER.info( 'Not using Tern completer: not installed at %s',
PATH_TO_TERN_BINARY )
return False
return True
