问题
I currently have a project that is structured as so
project
|
|----src/
| |
| |----test.cpp
|
|----include/
| |
| |----test.hpp
|
|----.ycm_extra_conf.py
But I can't get YouCompleteMe to recognize test.hpp when it's include in test.cpp
#include "test.hpp"
This is the output of my :YcmDebugInfo
Printing YouCompleteMe debug information...
-- Client logfile: /tmp/ycm_tcrryhfo.log
-- Server Python interpreter: /usr/bin/python2.7
-- Server Python version: 2.7.14
-- Server has Clang support compiled in: True
-- Clang version: clang version 3.9.1 (tags/RELEASE_391/final)
-- Extra configuration file found and loaded
-- Extra configuration path: /home/jake/project/.ycm_extra_conf.py
-- C-family completer debug information:
-- Compilation database path: None
-- Flags: ['-std=c++11', '-x', 'c++', '-Wall', '-I', 'include', '-isystem', '/usr/include', '-resource-dir=/home/jake/.local/share/nvim/plugged/YouCompleteMe/third_party/ycmd/ycmd/../clang_includes', '-fspell-checking']
-- Server running at: http://127.0.0.1:59337
-- Server process ID: 21577
-- Server logfiles:
-- /tmp/ycmd_59337_stdout_kndkmx3g.log
-- /tmp/ycmd_59337_stderr__xriaszp.log
There are no errors present in the server log files, but the client logfile has a few errors that ultimately begins with this:
Traceback (most recent call last):
File "/home/jake/.local/share/nvim/plugged/YouCompleteMe/autoload/../python/ycm/client/base_request.py", line 214, in HandleServerException
yield
File "/home/jake/.local/share/nvim/plugged/YouCompleteMe/autoload/../python/ycm/youcompleteme.py", line 237, in CheckIfServerIsReady
'ready' )
File "/home/jake/.local/share/nvim/plugged/YouCompleteMe/autoload/../python/ycm/client/base_request.py", line 68, in GetDataFromHandler
timeout ) )
File "/home/jake/.local/share/nvim/plugged/YouCompleteMe/autoload/../python/ycm/client/base_request.py", line 180, in JsonFromFuture
response = future.result()
File "/usr/lib64/python3.4/concurrent/futures/_base.py", line 402, in result
return self.__get_result()
File "/usr/lib64/python3.4/concurrent/futures/_base.py", line 354, in __get_result
raise self._exception
File "/home/jake/.local/share/nvim/plugged/YouCompleteMe/autoload/../python/ycm/unsafe_thread_pool_executor.py", line 43, in run
result = self.fn(*self.args, **self.kwargs)
File "/home/jake/.local/share/nvim/plugged/YouCompleteMe/third_party/ycmd/third_party/requests/requests/sessions.py", line 468, in request
resp = self.send(prep, **send_kwargs)
File "/home/jake/.local/share/nvim/plugged/YouCompleteMe/third_party/ycmd/third_party/requests/requests/sessions.py", line 576, in send
r = adapter.send(request, **kwargs)
File "/home/jake/.local/share/nvim/plugged/YouCompleteMe/third_party/ycmd/third_party/requests/requests/adapters.py", line 437, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='127.0.0.1', port=34155): Max retries exceeded with url: /ready (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7f32a77aa048>: Failed to establish a new connection: [Errno 111] Connection refused',))
Other than this everything seems to be working although it will offer variables that are out of scope as suggestions when autocompleting (Suggests member variables of different classes).
I followed the full installation guide and set my external clang to /usr/lib/libclang.so
I have no idea what's causing this.
回答1:
The default .ycm_extra_conf.py doesn't look for headers in nearby include directories.
This lookup is done in JDevlieghere's configuration, which I adapted to also add a flag for the include path root (in function FlagsForInclude):
import os
import os.path
import fnmatch
import logging
import ycm_core
import re
BASE_FLAGS = [
'-Wall',
'-Wextra',
'-Werror',
'-Wno-long-long',
'-Wno-variadic-macros',
'-fexceptions',
'-ferror-limit=10000',
'-DNDEBUG',
'-std=c++1z',
'-xc++',
'-I/usr/lib/',
'-I/usr/include/'
]
SOURCE_EXTENSIONS = [
'.cpp',
'.cxx',
'.cc',
'.c',
'.m',
'.mm'
]
SOURCE_DIRECTORIES = [
'src',
'lib'
]
HEADER_EXTENSIONS = [
'.h',
'.hxx',
'.hpp',
'.hh'
]
HEADER_DIRECTORIES = [
'include'
]
BUILD_DIRECTORY = 'build';
def IsHeaderFile(filename):
extension = os.path.splitext(filename)[1]
return extension in HEADER_EXTENSIONS
def GetCompilationInfoForFile(database, filename):
if IsHeaderFile(filename):
basename = os.path.splitext(filename)[0]
for extension in SOURCE_EXTENSIONS:
# Get info from the source files by replacing the extension.
replacement_file = basename + extension
if os.path.exists(replacement_file):
compilation_info = database.GetCompilationInfoForFile(replacement_file)
if compilation_info.compiler_flags_:
return compilation_info
# If that wasn't successful, try replacing possible header directory with possible source directories.
for header_dir in HEADER_DIRECTORIES:
for source_dir in SOURCE_DIRECTORIES:
src_file = replacement_file.replace(header_dir, source_dir)
if os.path.exists(src_file):
compilation_info = database.GetCompilationInfoForFile(src_file)
if compilation_info.compiler_flags_:
return compilation_info
return None
return database.GetCompilationInfoForFile(filename)
def FindNearest(path, target, build_folder=None):
candidate = os.path.join(path, target)
if(os.path.isfile(candidate) or os.path.isdir(candidate)):
logging.info("Found nearest " + target + " at " + candidate)
return candidate;
parent = os.path.dirname(os.path.abspath(path));
if(parent == path):
raise RuntimeError("Could not find " + target);
if(build_folder):
candidate = os.path.join(parent, build_folder, target)
if(os.path.isfile(candidate) or os.path.isdir(candidate)):
logging.info("Found nearest " + target + " in build folder at " + candidate)
return candidate;
return FindNearest(parent, target, build_folder)
def MakeRelativePathsInFlagsAbsolute(flags, working_directory):
if not working_directory:
return list(flags)
new_flags = []
make_next_absolute = False
path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
for flag in flags:
new_flag = flag
if make_next_absolute:
make_next_absolute = False
if not flag.startswith('/'):
new_flag = os.path.join(working_directory, flag)
for path_flag in path_flags:
if flag == path_flag:
make_next_absolute = True
break
if flag.startswith(path_flag):
path = flag[ len(path_flag): ]
new_flag = path_flag + os.path.join(working_directory, path)
break
if new_flag:
new_flags.append(new_flag)
return new_flags
def FlagsForClangComplete(root):
try:
clang_complete_path = FindNearest(root, '.clang_complete')
clang_complete_flags = open(clang_complete_path, 'r').read().splitlines()
return clang_complete_flags
except:
return None
def FlagsForInclude(root):
try:
include_path = FindNearest(root, 'include')
flags = []
for dirroot, dirnames, filenames in os.walk(include_path):
flags = flags + ["-I" + dirroot]
for dir_path in dirnames:
real_path = os.path.join(dirroot, dir_path)
flags = flags + ["-I" + real_path]
return flags
except:
return None
def FlagsForCompilationDatabase(root, filename):
try:
# Last argument of next function is the name of the build folder for
# out of source projects
compilation_db_path = FindNearest(root, 'compile_commands.json', BUILD_DIRECTORY)
compilation_db_dir = os.path.dirname(compilation_db_path)
logging.info("Set compilation database directory to " + compilation_db_dir)
compilation_db = ycm_core.CompilationDatabase(compilation_db_dir)
if not compilation_db:
logging.info("Compilation database file found but unable to load")
return None
compilation_info = GetCompilationInfoForFile(compilation_db, filename)
if not compilation_info:
logging.info("No compilation info for " + filename + " in compilation database")
return None
return MakeRelativePathsInFlagsAbsolute(
compilation_info.compiler_flags_,
compilation_info.compiler_working_dir_)
except:
return None
def FlagsForFile(filename):
root = os.path.realpath(filename);
compilation_db_flags = FlagsForCompilationDatabase(root, filename)
if compilation_db_flags:
final_flags = compilation_db_flags
else:
final_flags = BASE_FLAGS
clang_flags = FlagsForClangComplete(root)
if clang_flags:
final_flags = final_flags + clang_flags
include_flags = FlagsForInclude(root)
if include_flags:
final_flags = final_flags + include_flags
return {
'flags': final_flags,
'do_cache': True
}
来源：https://stackoverflow.com/questions/47246209/youcompleteme-cant-find-local-header-files