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lsp_bridge.py
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lsp_bridge.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (C) 2022 Andy Stewart
#
# Author: Andy Stewart <lazycat.manatee@gmail.com>
# Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import os
import queue
import shutil
import threading
import traceback
import json
import time
from functools import wraps
from pathlib import Path
from epc.server import ThreadingEPCServer
from core.fileaction import (create_file_action_with_single_server,
create_file_action_with_multi_servers,
FILE_ACTION_DICT, LSP_SERVER_DICT)
from core.lspserver import LspServer
from core.search_file_words import SearchFileWords
from core.search_sdcv_words import SearchSdcvWords
from core.search_list import SearchList
from core.search_paths import SearchPaths
from core.tabnine import TabNine
from core.codeium import Codeium
from core.copilot import Copilot
from core.utils import *
from core.handler import *
from core.remote_file import (
RemoteFileClient,
DockerFileClient,
FileSyncServer,
FileElispServer,
FileCommandServer,
SendMessageException,
ContainerConnectionException,
save_ip,
get_container_local_ip
)
from core.ctags import Ctags
def threaded(func):
@wraps(func)
def wrapper(*args, **kwargs):
thread = threading.Thread(target=func, args=args, kwargs=kwargs)
thread.start()
if hasattr(args[0], 'thread_queue'):
args[0].thread_queue.append(thread)
return wrapper
REMOTE_FILE_SYNC_CHANNEL = 9999
REMOTE_FILE_COMMAND_CHANNEL = 9998
REMOTE_FILE_ELISP_CHANNEL = 9997
class LspBridge:
def __init__(self, args):
# Check running environment.
self.running_in_server = len(args) == 0
if self.running_in_server:
set_running_in_server()
# Build EPC server.
self.server = ThreadingEPCServer(('127.0.0.1', 0), log_traceback=True)
self.server.allow_reuse_address = True
self.server.register_instance(self) # register instance functions let elisp side call
# Start EPC server.
self.server_thread = threading.Thread(target=self.server.serve_forever)
self.server_thread.start()
# Init variables.
self.thread_queue = []
self.client_dict = {}
self.lsp_client_dict = {}
self.host_names = {}
# Init event loop.
self.event_queue = queue.Queue()
self.event_loop = threading.Thread(target=self.event_dispatcher)
self.event_loop.start()
self.sync_tramp_remote_complete_event = threading.Event()
if self.running_in_server:
self.init_search_backends_complete_event = threading.Event()
# Start remote file server if lsp-bridge running in server.
self.init_remote_file_server()
else:
# Init EPC client and search backends if lsp-bridge running in local.
init_epc_client(int(args[0]))
self.init_search_backends()
eval_in_emacs('lsp-bridge--first-start', self.server.server_address[1])
# event_loop never exit, simulation event loop.
self.event_loop.join()
def message_hostnames(self):
message_emacs(f"host_names:{self.host_names}")
# Functions for initialization
def init_search_backends(self):
# Init tabnine.
self.tabnine = TabNine()
# Init codeium
self.codeium = Codeium()
# Init copilot
self.copilot = Copilot()
# Init search backends.
self.search_file_words = SearchFileWords()
self.search_sdcv_words = SearchSdcvWords()
self.search_list = SearchList()
self.search_paths = SearchPaths()
self.ctags = Ctags()
# Build EPC interfaces.
handler_subclasses = list(map(lambda cls: cls.name, Handler.__subclasses__()))
for name in ["change_file", "update_file", "save_file",
"try_completion", "try_formatting",
"change_cursor",
"list_diagnostics",
"try_code_action",
"workspace_symbol"] + handler_subclasses:
self.build_file_action_function(name)
search_backend_export_functions = {
"search_file_words": ["index_files", "change_buffer", "load_file", "close_file", "search"],
"search_sdcv_words": ["search"],
"search_list": ["search", "update"],
"search_paths": ["search"]
}
for search_backend, export_functions in search_backend_export_functions.items():
for name in export_functions:
self.build_prefix_function(search_backend, search_backend, name)
# Set log level.
[enable_lsp_server_log] = get_emacs_vars(["lsp-bridge-enable-log"])
if enable_lsp_server_log:
logger.setLevel(logging.DEBUG)
# All LSP server response running in message_thread.
self.message_queue = queue.Queue()
self.message_thread = threading.Thread(target=self.message_dispatcher)
self.message_thread.start()
if not self.running_in_server:
remote_threads = {
"send_message_dispatcher": {
# Build loop to open remote file.
"remote_file_sender_queue": REMOTE_FILE_SYNC_CHANNEL,
# Build loop to call remote Python command.
"remote_file_command_sender_queue": REMOTE_FILE_COMMAND_CHANNEL,
# Build loop to reply remote rpc command.
"remote_file_elisp_sender_queue": REMOTE_FILE_ELISP_CHANNEL
},
"receive_message_dispatcher": {
# Build loop to receive remote file to local Emacs.
"remote_file_receiver_queue": "handle_remote_file_message",
# Build loop to receive remote Python command response from remote server to local Emacs.
"remote_file_command_receiver_queue": "handle_lsp_message",
# Build loop to receive remote rpc from remote server to local Emacs.
"remote_file_elisp_receiver_queue": "handle_file_elisp_message"
}
}
for dispatcher, args in remote_threads.items():
for q, v in args.items():
newq = queue.Queue()
setattr(self, q, newq)
if not isinstance(v, int):
v = getattr(self, v)
threading.Thread(
target=getattr(self, dispatcher),
args=(newq, v)
).start()
@threaded
def init_remote_file_server(self):
print("* Running lsp-bridge on remote server. "
"Access files with 'lsp-bridge-open-remote-file' or 'find-file /docker:...'")
# Build loop for remote files management.
self.file_server = FileSyncServer("0.0.0.0", REMOTE_FILE_SYNC_CHANNEL)
# Build loop for call remote command from local Emacs.
# Start waiting for init_search_backends_complete_event
self.file_command_server = FileCommandServer("0.0.0.0", REMOTE_FILE_COMMAND_CHANNEL, self)
# Build loop for call local Emacs function from server.
# Signal that init_search_backends_complete_event is done
self.file_elisp_server = FileElispServer("0.0.0.0", REMOTE_FILE_ELISP_CHANNEL, self)
set_lsp_bridge_server(self)
# Functions for communication between local and remote server
def get_socket_client(self, server_host, server_port, is_retry=False):
# currently only support SSH and docker
#
# try to distinguish SSH remote file or docker remote file using server_host
# if visiting docker remote file, container name is passed as server_host
if is_valid_ip(server_host):
return self._get_remtoe_file_client(server_host, server_port, is_retry)
else:
# server_host is the container_name
return self._get_docker_file_client(server_host, server_port)
def _get_remtoe_file_client(self, server_host, server_port, is_retry):
if server_host not in self.host_names:
message_emacs(f"{server_host} is not connected, try reconnect...")
self.sync_tramp_remote_complete_event.clear()
eval_in_emacs('lsp-bridge-remote-reconnect', server_host, True)
self.sync_tramp_remote_complete_event.wait()
message_emacs(f"{server_host} connected.")
client_id = f"{server_host}:{server_port}"
if client_id in self.client_dict:
return self.client_dict[client_id]
import paramiko
ssh_conf = self.host_names[server_host]
try:
client = RemoteFileClient(
ssh_conf,
server_port,
lambda message: self.receive_remote_message(message, server_port),
)
except paramiko.AuthenticationException:
# cloud not login server
message_emacs(f"login {ssh_conf} failed, please check *lsp-bridge*")
return None
try:
client.create_channel()
except paramiko.ChannelException:
# Channel Exception indicates that we clould not established channel
# the remote process may not exist, try to start the process
if is_retry:
return None
[remote_start_automatically] = get_emacs_vars(["lsp-bridge-remote-start-automatically"])
if not remote_start_automatically:
message_emacs(f"please make sure `lsp_bridge.py` has start at server {server_host} (lsp-bridge-remote-start-automatically is disabled)")
return None
# try to start remote process if it does not exist
message_emacs(f"Start lsp-bridge process on {server_host} automatically...")
client.start_lsp_bridge_process()
# wait a while for the remote process to be ready
time.sleep(2)
# if client is not None, it has been started and put into client_dict
return self.get_socket_client(server_host, server_port, is_retry=True)
else:
client.start()
self.client_dict[client_id] = client
return client
def _get_docker_file_client(self, container_name, server_port):
client_id = f"{container_name}:{server_port}"
if client_id in self.client_dict:
return self.client_dict[client_id]
try:
client = DockerFileClient(
container_name=container_name,
server_port=server_port,
callback=lambda message: self.receive_remote_message(message, server_port),
)
except ContainerConnectionException as e:
print(f"Failed to connect {container_name}, is it running?")
raise e
else:
client.start()
self.client_dict[client_id] = client
return client
def send_remote_message(self, host, queue, message, wait=False):
queue.put({"host": host, "message": message})
if wait:
queue.join()
def send_message_dispatcher(self, queue, port):
try:
while True:
data = queue.get(True)
server_host = data["host"]
client = self.get_socket_client(server_host, port)
try:
client.send_message(data["message"])
except SendMessageException as e:
# lsp-bridge process might has been restarted, making the orignal socket no longer valid.
logger.exception("Connection %s is broken, message %s, error %s", f"{server_host}:{port}", data["message"], e)
# remove all the clients for server_host from client_dict
# client will be created again when get_socket_client is called
for client_id in [key for key in self.client_dict.keys() if key.startswith(server_host + ":")]:
self.client_dict.pop(client_id, None)
message_emacs(f"try to recreate connection to {server_host}:{port}")
try:
client = self.get_socket_client(server_host, port)
except Exception as e:
# FATAL: unable to restore
logger.exception(e)
else:
# connection restored, try to send out the message
client.send_message(data["message"])
eval_in_emacs('lsp-bridge-remote-reconnect', server_host, False)
except Exception as e:
logger.exception(e)
finally:
queue.task_done()
except:
logger.error(traceback.format_exc())
def receive_remote_message(self, message, server_port):
if server_port == REMOTE_FILE_SYNC_CHANNEL:
self.remote_file_receiver_queue.put(message)
elif server_port == REMOTE_FILE_COMMAND_CHANNEL:
self.remote_file_command_receiver_queue.put(message)
elif server_port == REMOTE_FILE_ELISP_CHANNEL:
self.remote_file_elisp_receiver_queue.put(message)
def receive_message_dispatcher(self, queue, handle_remote_message):
try:
while True:
message = queue.get(True)
handle_remote_message(message)
queue.task_done()
except:
logger.error(traceback.format_exc())
def remote_sync(self, host, remote_connection_info):
client_id = f"{host}:{REMOTE_FILE_ELISP_CHANNEL}"
if client_id not in self.client_dict:
# send "say hello" upon establishing the first connection
self.send_remote_message(
host, self.remote_file_elisp_sender_queue, "Connect", True)
self.send_remote_message(
host, self.remote_file_sender_queue, {
"command": "remote_sync",
"server": host,
"remote_connection_info": remote_connection_info,
})
@threaded
def sync_tramp_remote(self, tramp_file_name, tramp_method, server_username, server_host, ssh_port, path):
# tramp_file_name format example:
# /ssh:user@ip#port:/path/to/file
# /docker:user@container:/path/to/file
# see https://www.gnu.org/software/tramp/#File-name-syntax
tramp_method_prefix = tramp_file_name.rsplit(":", 1)[0]
if tramp_method_prefix.startswith("/ssh"):
# arguments are passed from emacs using standard TRAMP functions tramp-file-name-<field>
if server_host in self.host_names:
server_host = self.host_names[server_host]['hostname']
ssh_conf = self.host_names[server_host]
elif is_valid_ip(server_host):
ssh_conf = {'hostname' : server_host}
else:
import paramiko
alias = server_host
ssh_config = paramiko.SSHConfig()
with open(os.path.expanduser('~/.ssh/config')) as f:
ssh_config.parse(f)
ssh_conf = ssh_config.lookup(alias)
server_host = ssh_conf.get('hostname', server_host)
self.host_names[alias] = ssh_conf
if not is_valid_ip(server_host):
message_emacs("HostName Must be IP format.")
if server_username:
ssh_conf['user'] = server_username
if ssh_port:
ssh_conf['port'] = ssh_port
self.host_names[server_host] = ssh_conf
tramp_connection_info = tramp_method_prefix + ":"
self.remote_sync(server_host, tramp_connection_info)
eval_in_emacs("lsp-bridge-update-tramp-file-info", tramp_file_name, tramp_connection_info, tramp_method, server_username, server_host, path)
self.sync_tramp_remote_complete_event.set()
elif tramp_method_prefix.startswith("/docker"):
# when using tramp to connect to container, the tramp_file_name might be
#
# /docker:USER@CONTAINER:/path/to/file
# /docker:CONTAINER:/path/to/file
#
# see https://git.savannah.gnu.org/git/tramp.git listp/tramp-container.el
tramp_method_split = tramp_method_prefix.split(":")[1]
if "@" in tramp_method_split:
container_user, container_name = tramp_method_split.split("@")
else:
container_user = "root"
container_name = tramp_method_split
if not get_container_local_ip(container_name):
message_emacs(f"Cloud not get local ip of container {container_name}, is it running?")
return
# only support local container
self.host_names[container_name] = {
"server_host": "127.0.0.1",
"username": container_user
}
try:
tramp_connection_info = tramp_method_prefix + ":"
self.remote_sync(container_name, tramp_connection_info)
# container_name is used for emacs buffer local variable lsp-bridge-remote-file-host
eval_in_emacs("lsp-bridge-update-tramp-file-info", tramp_file_name, tramp_connection_info, tramp_method, container_user, container_name, path)
eval_in_emacs("lsp-bridge--setup-tramp-docker-buffer", tramp_file_name)
self.sync_tramp_remote_complete_event.set()
except Exception as e:
logger.exception(e)
message_emacs(f"Connect {container_user}@{container_name} failed")
raise e
else:
message_emacs(
f"Failed to access {tramp_file_name}, unsupported tramp methd: {tramp_method_prefix[1:]}, "
"please make sure `lsp_bridge.py` has started on server."
)
# Functions for local to manage remote files
@threaded
def open_remote_file(self, path, jump_define_pos):
if is_valid_ip_path(path):
# open_remote_file path notation
# ip:path
# ip:port:path
path_info = split_ssh_path(path)
if path_info:
(remote_info, server_host, ssh_conf, server_path) = path_info
self.host_names[server_host] = ssh_conf
self.remote_sync(server_host, f"/{remote_info}")
message_emacs(f"Open {remote_info}{server_path}...")
# Add TRAMP-related fields
# The following fields: tramp_method, user, server, port, and path
# are set as buffer-local variables in the buffer created by Emacs.
# These variables facilitate the construction of a TRAMP file name,
# and then allow the buffer to reconnect to a restarted remote lsp-bridge process
# using the same logic with reconnecting a TRAMP remote file buffer.
self.send_remote_message(
server_host, self.remote_file_sender_queue, {
"command": "open_file",
"tramp_method": "ssh",
"user": ssh_conf.get('user'),
"server": server_host,
"port": ssh_conf.get('port'),
"path": server_path,
"jump_define_pos": epc_arg_transformer(jump_define_pos)
})
save_ip(f"{remote_info}")
elif path.startswith("/docker:"):
# open_remote_file path notation
# /docker:user@container:/path/to/file
# /docker:container:/path/to/file
path_info = split_docker_path(path)
if path_info:
(container_user, server_host, server_path) = path_info
# only support local container
self.host_names[server_host] = {
"server_host": "127.0.0.1",
"username": container_user
}
self.remote_sync(server_host, path.rsplit(":", 1)[0] + ":")
message_emacs(f"Open {path}...")
self.send_remote_message(
server_host, self.remote_file_sender_queue, {
"command": "open_file",
"tramp_method": "docker",
"user": container_user,
"server": server_host,
"port": None,
"path": server_path,
"jump_define_pos": epc_arg_transformer(jump_define_pos)
})
else:
message_emacs(f"Unsupported remote path {path}")
@threaded
def update_remote_file(self, remote_file_host, remote_file_path, content):
self.send_remote_message(
remote_file_host, self.remote_file_sender_queue, {
"command": "update_file",
"server": remote_file_host,
"path": remote_file_path,
"content": content
})
@threaded
def save_remote_file(self, remote_file_host, remote_file_path):
self.send_remote_message(
remote_file_host, self.remote_file_sender_queue, {
"command": "save_file",
"server": remote_file_host,
"path": remote_file_path
})
@threaded
def close_remote_file(self, remote_file_host, remote_file_path):
self.send_remote_message(
remote_file_host, self.remote_file_sender_queue, {
"command": "close_file",
"server": remote_file_host,
"path": remote_file_path
})
# Functions for local to send request to remote server
@threaded
def lsp_request(self, remote_file_host, remote_file_path, method, args):
if method == "change_file":
self.send_remote_message(
remote_file_host, self.remote_file_sender_queue, {
"command": "change_file",
"server": remote_file_host,
"path": remote_file_path,
"args": list(map(epc_arg_transformer, args))
})
self.send_remote_message(
remote_file_host, self.remote_file_command_sender_queue, {
"command": "lsp_request",
"server": remote_file_host,
"path": remote_file_path,
"method": method,
"args": list(map(epc_arg_transformer, args))
})
@threaded
def func_request(self, remote_file_host, remote_file_path, method, args):
self.send_remote_message(
remote_file_host, self.remote_file_command_sender_queue, {
"command": "func_request",
"server": remote_file_host,
"path": remote_file_path,
"method": method,
"args": list(map(epc_arg_transformer, args))
})
# Functions for local to handle messages from remote server
@threaded
def handle_remote_file_message(self, message):
command = message["command"]
if command == "open_file":
if "error" in message:
message_emacs(message["error"])
else:
eval_in_emacs(
"lsp-bridge-open-remote-file--response",
message["tramp_method"],
message["user"],
message["server"],
message["port"],
message["path"],
string_to_base64(message["content"]),
message["jump_define_pos"],
)
message_emacs(f"Open file {message['path']} on {message['server']}")
@threaded
def handle_lsp_message(self, message):
if message["command"] == "eval-in-emacs":
# Execute emacs command from remote server.
eval_sexp_in_emacs(message["sexp"])
@threaded
def handle_file_elisp_message(self, message):
# Receive elisp RPC call from remote server.
log_time(f"Receive server elisp RPC: {message}")
host = message["host"]
# Read elisp code from local Emacs, and sendback to remote server.
if message["command"] == "get_emacs_func_result":
result = get_emacs_func_result(message["method"], *message["args"])
elif message["command"] == "get_emacs_vars":
result = get_emacs_vars(message["args"])
else:
logger.error("Unsupported command %s", message["command"])
result = None
message["result"] = result
self.send_remote_message(host, self.remote_file_elisp_sender_queue, message)
# Functions for local handling
def event_dispatcher(self):
try:
while True:
message = self.event_queue.get(True)
if message["name"] == "close_file":
self._close_file(message["content"])
elif message["name"] == "action_func":
(func_name, func_args) = message["content"]
getattr(self, func_name)(*func_args)
self.event_queue.task_done()
except:
logger.error(traceback.format_exc())
def message_dispatcher(self):
try:
while True:
message = self.message_queue.get(True)
if message["name"] == "server_process_exit":
self.handle_server_process_exit(message["content"])
else:
logger.error("Unhandled lsp-bridge message: %s" % message)
self.message_queue.task_done()
except:
logger.error(traceback.format_exc())
def rename_file(self, old_filepath, new_filepath):
if is_in_path_dict(FILE_ACTION_DICT, old_filepath):
get_from_path_dict(FILE_ACTION_DICT, old_filepath).rename_file(old_filepath, new_filepath)
def fetch_completion_item_info(self, filepath, item_key, server_name):
if is_in_path_dict(FILE_ACTION_DICT, filepath):
get_from_path_dict(FILE_ACTION_DICT, filepath).completion_item_resolve(item_key, server_name)
def open_file(self, filepath):
project_path = get_project_path(filepath)
multi_lang_server = get_emacs_func_result("get-multi-lang-server", project_path, filepath)
if os.path.splitext(filepath)[-1] == '.org':
single_lang_server = get_emacs_func_result("get-single-lang-server", project_path, filepath)
lang_server_info = load_single_server_info(single_lang_server)
#TODO support diagnostic
lsp_server = self.create_lsp_server(filepath, project_path, lang_server_info, enable_diagnostics=False)
create_file_action_with_single_server(filepath, lang_server_info, lsp_server)
elif multi_lang_server:
# Try to load multi language server when get-multi-lang-server return match one.
multi_lang_server_dir = Path(__file__).resolve().parent / "multiserver"
multi_lang_server_path = multi_lang_server_dir / "{}.json".format(multi_lang_server)
user_multi_lang_server_dir = Path(str(get_emacs_vars(["lsp-bridge-user-multiserver-dir"])[0])).expanduser()
user_multi_lang_server_path = user_multi_lang_server_dir / "{}.json".format(multi_lang_server)
if user_multi_lang_server_path.exists():
multi_lang_server_path = user_multi_lang_server_path
with open(multi_lang_server_path, encoding="utf-8", errors="ignore") as f:
multi_lang_server_info = json.load(f)
servers = self.pick_multi_server_names(multi_lang_server_info)
# Load multi language server only when all language server commands exist.
if self.check_multi_server_command(servers, filepath):
multi_servers = {}
for server_name in servers:
server_path = get_lang_server_path(server_name)
with open(server_path, encoding="utf-8", errors="ignore") as server_path_file:
lang_server_info = read_lang_server_info(server_path_file)
lsp_server = self.create_lsp_server(
filepath,
project_path,
lang_server_info,
server_name in multi_lang_server_info.get("diagnostics", []))
if lsp_server:
multi_servers[lang_server_info["name"]] = lsp_server
else:
return False
self.enjoy_hacking(servers, project_path)
create_file_action_with_multi_servers(filepath, multi_lang_server_info, multi_servers)
else:
# Try load single language server if multi language server load failed.
single_lang_server = get_emacs_func_result("get-single-lang-server", project_path, filepath)
if single_lang_server:
return self.load_single_lang_server(project_path, filepath)
else:
self.turn_off(
filepath,
"ERROR: can't find all command of multi-server for {}, haven't found match single-server".format(filepath))
return False
else:
# Try to load single language server.
return self.load_single_lang_server(project_path, filepath)
return True
def close_file(self, filepath):
# Add queue, make sure close file after other LSP request.
self.event_queue.put({
"name": "close_file",
"content": filepath
})
def _close_file(self, filepath):
if is_in_path_dict(FILE_ACTION_DICT, filepath):
get_from_path_dict(FILE_ACTION_DICT, filepath).exit()
def close_all_files(self):
FILE_ACTION_DICT.clear()
for lsp_server in LSP_SERVER_DICT.values():
lsp_server.exit()
LSP_SERVER_DICT.clear()
def enjoy_hacking(self, servers, project_path):
# Notify user server is ready.
print("Start lsp server ({}) for {}".format(", ".join(servers), project_path))
message_emacs("Active {} '{}', enjoy hacking!".format(
"project" if os.path.isdir(project_path) else "file",
os.path.basename(project_path.rstrip(os.path.sep))))
def load_single_lang_server(self, project_path, filepath):
single_lang_server = get_emacs_func_result("get-single-lang-server", project_path, filepath)
if not single_lang_server:
self.turn_off(filepath, "ERROR: can't find the corresponding server for {}".format(filepath))
return False
lang_server_info = load_single_server_info(single_lang_server)
# If project_path is file path, not dir.
if ((not os.path.isdir(project_path)) and
("support-single-file" in lang_server_info and
lang_server_info["support-single-file"] is False)):
if "project-files" in lang_server_info:
# If support-support-single-file is False,
# we will search project-files up 20 level directories to find project root.
project_root = self.find_project_root(filepath, lang_server_info["project-files"])
if project_root is None:
self.turn_off_by_single_file(filepath, single_lang_server)
return False
else:
# Replace project_path with project root path.
project_path = project_root
else:
self.turn_off_by_single_file(filepath, single_lang_server)
return False
lsp_server = self.create_lsp_server(filepath, project_path, lang_server_info)
if lsp_server:
self.enjoy_hacking([lang_server_info["name"]], project_path)
create_file_action_with_single_server(filepath, lang_server_info, lsp_server)
else:
return False
return True
def find_project_root(self, filepath, project_files, max_depth=20):
current_dir = os.path.abspath(filepath)
for _ in range(max_depth):
for file in project_files:
if os.path.isfile(os.path.join(current_dir, file)):
return current_dir
parent_dir = os.path.dirname(current_dir)
if parent_dir == current_dir: # reach topest dir
break
current_dir = parent_dir
return None
def turn_off(self, filepath, message):
if os.path.splitext(filepath)[1] != ".txt":
message_emacs(message + ", disable LSP feature.")
eval_in_emacs("lsp-bridge--turn-off-lsp-feature", filepath, get_lsp_file_host())
def turn_off_by_single_file(filepath, single_lang_server):
self.turn_off(
filepath,
"ERROR: {} not support single-file, you need put this file in a git repository or put .dir-locals.el in project root directory".format(single_lang_server))
def check_lang_server_command(self, lang_server_info, filepath, turn_off_on_error=True):
# We merge PATH from `exec-path` variable, to make sure lsp-bridge find LSP server command if it can find by Emacs.
merge_emacs_exec_path()
if len(lang_server_info["command"]) > 0:
server_command = lang_server_info["command"][0]
server_command_path = shutil.which(server_command)
if server_command_path:
# We always replace LSP server command with absolute path of 'which' command.
lang_server_info["command"][0] = server_command_path
# message back the LSP server command path to emacs for verification
# as some languages have runtime environment isolation
# for example python virtualenv, NodeJS nvm, Ruby RVM
message_emacs(f"found language server: {server_command_path}")
return True
else:
error_message = "Error: can't find command '{}' to start LSP server {} ({})".format(
server_command, lang_server_info["name"], filepath)
if turn_off_on_error:
self.turn_off(filepath, error_message)
else:
message_emacs(error_message)
return False
else:
error_message = "Error: {}'s command argument is empty".format(filepath)
if turn_off_on_error:
self.turn_off(filepath, error_message)
else:
message_emacs(error_message)
return False
def check_multi_server_command(self, server_names, filepath):
for server_name in server_names:
server_path = get_lang_server_path(server_name)
with open(server_path, encoding="utf-8", errors="ignore") as server_path_file:
lang_server_info = read_lang_server_info(server_path_file)
if not self.check_lang_server_command(lang_server_info, filepath, False):
return False
return True
def create_lsp_server(self, filepath, project_path, lang_server_info, enable_diagnostics=True):
if not self.check_lang_server_command(lang_server_info, filepath):
return False
lsp_server_name = "{}#{}".format(path_as_key(project_path), lang_server_info["name"])
if lsp_server_name not in LSP_SERVER_DICT:
LSP_SERVER_DICT[lsp_server_name] = LspServer(
message_queue=self.message_queue,
project_path=project_path,
server_info=lang_server_info,
server_name=lsp_server_name,
enable_diagnostics=enable_diagnostics)
return LSP_SERVER_DICT[lsp_server_name]
def pick_multi_server_names(self, multi_lang_server_info):
servers = []
for info in multi_lang_server_info:
info_value = multi_lang_server_info[info]
if isinstance(info_value, str):
servers.append(info_value)
else:
servers += info_value
return list(dict.fromkeys(servers))
def maybe_create_org_babel_server(self, filepath):
action = get_from_path_dict(FILE_ACTION_DICT, filepath)
current_lang_server = get_emacs_func_result("get-single-lang-server",
action.single_server.project_path, filepath)
lsp_server_name = "{}#{}".format(action.single_server.project_path, current_lang_server)
if lsp_server_name != action.single_server.server_name and isinstance(current_lang_server, str):
if lsp_server_name not in action.org_lang_servers:
lang_server_info = load_single_server_info(current_lang_server)
server = self.create_lsp_server(filepath, action.single_server.project_path,
lang_server_info, enable_diagnostics=False)
action.org_lang_servers[lsp_server_name] = server
action.org_server_infos[lsp_server_name] = lang_server_info
server.attach(action)
else:
lang_server_info = action.org_server_infos[lsp_server_name]
server = action.org_lang_servers[lsp_server_name]
action.single_server = server
action.single_server_info = lang_server_info
action.set_lsp_server()
def build_file_action_function(self, name):
def _do(filepath, *args):
if is_remote_path(filepath):
return
open_file_success = True
if not is_in_path_dict(FILE_ACTION_DICT, filepath):
open_file_success = self.open_file(filepath) # _do is called inside event_loop, so we can block here.
elif os.path.splitext(filepath)[-1] == '.org' and get_emacs_vars(['lsp-bridge-enable-org-babel'])[0]:
# check weather need create new lsp server
self.maybe_create_org_babel_server(filepath)
if open_file_success:
action = get_from_path_dict(FILE_ACTION_DICT, filepath)
action.call(name, *args)
setattr(self, "_{}".format(name), _do)
def _do_wrap(*args):
# To prevent long-time calculations from blocking Emacs, we need to put the function into event loop.
self.event_queue.put({
"name": "action_func",
"content": ("_{}".format(name), list(map(epc_arg_transformer, args)))
})
setattr(self, name, _do_wrap)
def build_prefix_function(self, obj_name, prefix, name):
def _do(*args, **kwargs):
getattr(getattr(self, obj_name), name)(*args, **kwargs)
setattr(self, "{}_{}".format(prefix, name), _do)
def tabnine_complete(self, before, after, filename, region_includes_beginning, region_includes_end, max_num_results):
self.tabnine.complete(before, after, filename, region_includes_beginning, region_includes_end, max_num_results)
@threaded
def ctags_complete(self, symbol, filename, max_lines, cursor_offset):
self.ctags.make_complete(symbol, filename, max_lines, cursor_offset)
@threaded
def ctags_find_def(self, symbol, filename):
self.ctags.find_definition(symbol, filename)
def copilot_complete(self, position, editor_mode, file_path, relative_path, tab_size, text, insert_spaces):
self.copilot.complete(position, editor_mode, file_path, relative_path, tab_size, text, insert_spaces)
@threaded
def codeium_complete(self, cursor_offset, editor_language, tab_size, text, insert_spaces, prefix, language, file_path):
self.codeium.complete(cursor_offset, editor_language, tab_size, text, insert_spaces, prefix, language, file_path)
def codeium_completion_accept(self, id):
self.codeium.accept(id)
def codeium_auth(self):
self.codeium.auth()
def copilot_login(self):
self.copilot.login()
def copilot_logout(self):
self.copilot.logout()
def copilot_status(self):
self.copilot.check_status()
def copilot_completion_accept(self, id):
self.copilot.accept(id)
def codeium_get_api_key(self, auth_token):
self.codeium.get_api_key(auth_token)
def handle_server_process_exit(self, server_name):
if server_name in LSP_SERVER_DICT:
log_time("Exit server {}".format(server_name))
del LSP_SERVER_DICT[server_name]
def close_client(self):
for client in self.client_dict.values():
if hasattr(client, "kill_lsp_bridge_process"):
client.kill_lsp_bridge_process()
def cleanup(self):
"""Do some cleanup before exit python process."""
self.close_client()
close_epc_client()
def start_test(self):
# Called from lsp-bridge-test.el to start test.
from test.test import start_test
start_test(self)