.ycm_extra_conf.py

from distutils.sysconfig import get_python_inc
import platform
import os.path as p
import subprocess

DIR_OF_THIS_SCRIPT = p.abspath( p.dirname( __file__ ) )
SOURCE_EXTENSIONS = [ '.cpp', '.c' ]

database = None

# These are the compilation flags that will be used in case there's no
# compilation database set (by default, one is not set).
# CHANGE THIS LIST OF FLAGS. YES, THIS IS THE DROID YOU HAVE BEEN LOOKING FOR.
system_flags = [
  # '-nostdinc++',
  # '-nostdinc',
  # '-nobuiltininc'
]

flags = [
  '-isystem/usr/local/Cellar/arm-gcc-bin/9-2020-q2-update/arm-none-eabi/include',
  # '-isystem/usr/local/Cellar/arm-gcc-bin/9-2020-q2-update/arm-none-eabi/include/c++/9.3.1'
  # '-isystem/usr/local/Cellar/arm-gcc-bin/9-2020-q2-update/arm-none-eabi/include/c++/9.3.1/arm-none-eabi/bits'
]

# Set this to the absolute path to the folder (NOT the file!) containing the
# compile_commands.json file to use that instead of 'flags'. See here for
# more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
#
# You can get CMake to generate this file for you by adding:
#   set( CMAKE_EXPORT_COMPILE_COMMANDS 1 )
# to your CMakeLists.txt file.
#
# Most projects will NOT need to set this to anything; you can just change the
# 'flags' list of compilation flags. Notice that YCM itself uses that approach.
compilation_database_folder = '/Users/ladislas/dev/leka/LekaOS/build'


def IsHeaderFile( filename ):
  extension = p.splitext( filename )[ 1 ]
  return extension in [ '.h' ]


def FindCorrespondingSourceFile( filename ):
  if IsHeaderFile( filename ):
    basename = p.splitext( filename )[ 0 ]
    for extension in SOURCE_EXTENSIONS:
      replacement_file = basename + extension
      if p.exists( replacement_file ):
        return replacement_file
  return filename


def Settings( **kwargs ):
  # Do NOT import ycm_core at module scope.
  import ycm_core

  global database
  if database is None and p.exists( compilation_database_folder ):
    database = ycm_core.CompilationDatabase( compilation_database_folder )
    print("db found")
    print(database)

  language = kwargs[ 'language' ]

  if language == 'cfamily':
    # If the file is a header, try to find the corresponding source file and
    # retrieve its flags from the compilation database if using one. This is
    # necessary since compilation databases don't have entries for header files.
    # In addition, use this source file as the translation unit. This makes it
    # possible to jump from a declaration in the header file to its definition
    # in the corresponding source file.
    filename = FindCorrespondingSourceFile( kwargs[ 'filename' ] )
    print(f"filename {filename}")

    if not database:
      print("not database :(")
      return {
        'flags': flags,
        'include_paths_relative_to_dir': DIR_OF_THIS_SCRIPT,
        'override_filename': filename
      }

    compilation_info = database.GetCompilationInfoForFile( filename )
    print(f"compilation info: {compilation_info}")
    if not compilation_info.compiler_flags_:
      print("no flags :(")
      return {}

    # Bear in mind that compilation_info.compiler_flags_ does NOT return a
    # python list, but a "list-like" StringVec object.
    final_flags = list( compilation_info.compiler_flags_ )

    print(final_flags)

    return_value = {
      'flags': system_flags + final_flags + flags,
      'include_paths_relative_to_dir': compilation_info.compiler_working_dir_,
      'override_filename': filename
    }

    # print(return_value)

    return return_value

  return {}