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aaf49c302f
This is basically a major rewrite of the .ycm_extra_conf.py file that ycm uses to determine what compile commands it should use for a file. But the basic purpose is for it to use the generated flags in build/compile_commands.json that is generated by cmake for as many files as possible. Before it always used the hardcoded default flags which would not always work for all files. Now it gets the proper flags for all files I tested. In the src and tests folder the flags are already generated by cmake In the include folder it tries to use the flags of the corresponding source files in the src folder
126 lines
4.1 KiB
Python
126 lines
4.1 KiB
Python
import os
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import ycm_core
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# Default flags
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flags = [
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'-std=c++14',
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'-Wall',
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'-Wextra',
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# Relative paths are corrected by MakeRelativePathsInFlagsAbsolute
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'-Isrc',
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'-Iinclude',
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'-Ilib/concurrentqueue/include',
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'-Ilib/i3ipcpp/include',
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'-Ilib/xpp/include',
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'-Itests',
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'-I/usr/include',
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'-I/usr/include/freetype2',
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]
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# Base directory of the project, parent directory of all source files
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project_dir = os.path.dirname(os.path.abspath(__file__))
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# This assumes that everyone coding for this project builds inside the 'build'
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# directory
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compilation_database_folder = project_dir + "/build"
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if os.path.exists(compilation_database_folder):
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database = ycm_core.CompilationDatabase(compilation_database_folder)
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else:
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database = None
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SOURCE_EXTENSIONS = ['.cpp', '.cxx', '.cc', '.c', '.m', '.mm']
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# Converts all relative paths in the given flag list to absolute paths with
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# working_directory as the base directory
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def MakeRelativePathsInFlagsAbsolute(flags, working_directory):
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if not working_directory:
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return list(flags)
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new_flags = []
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make_next_absolute = False
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path_flags = ['-isystem', '-I', '-iquote', '--sysroot=']
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for flag in flags:
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new_flag = flag
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if make_next_absolute:
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make_next_absolute = False
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if not flag.startswith('/'):
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new_flag = os.path.join(working_directory, flag)
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for path_flag in path_flags:
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if flag == path_flag:
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make_next_absolute = True
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break
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if flag.startswith(path_flag):
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path = flag[len(path_flag):]
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new_flag = path_flag + os.path.join(working_directory, path)
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break
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if new_flag:
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new_flags.append(new_flag)
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return new_flags
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def IsHeaderFile(filename):
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extension = os.path.splitext(filename)[1]
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return extension in ['.h', '.hxx', '.hpp', '.hh', ".inl"]
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# Tries to query the compilation database for flags
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# For header files it tries to use the flags for a corresponding source file
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def GetCompilationInfoForFile(filename):
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if not database:
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return None
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# The compilation_commands.json file generated by CMake does not have entries
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# for header files. We try to use the compile flags used for the corresponding
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# source file.
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#
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# For this try to replace the file extension with an extension that
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# corresponds to a source and we also try to replace the 'include' folder in
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# the path with 'src'
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if IsHeaderFile(filename) :
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basename = os.path.splitext(filename)[0]
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# Absolute path of the include and source directories
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include_dir = project_dir + "/include"
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src_dir = project_dir + "/src"
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# Absolute path without file extension, with the 'include' folder replaced
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# with 'src' in the path
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src_basename = None
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# If the header file is inside the include dir, try to search in the src dir
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if basename.startswith(include_dir):
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# file path relative to include dir
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rel_path_include = os.path.relpath(basename, include_dir)
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src_basename = os.path.join(src_dir, rel_path_include)
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for extension in SOURCE_EXTENSIONS:
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# A list of all possible replacement files to be searched
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replacement_files = [basename + extension]
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if src_basename:
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replacement_files.append(src_basename + extension)
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for replacement_file in replacement_files:
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if os.path.exists(replacement_file):
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comp_info = database.GetCompilationInfoForFile(replacement_file)
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if comp_info.compiler_flags_:
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return comp_info
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return database.GetCompilationInfoForFile(filename)
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def FlagsForFile(filename, **kwargs):
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compilation_info = GetCompilationInfoForFile(filename)
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if compilation_info and compilation_info.compiler_flags_:
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# Bear in mind that compilation_info.compiler_flags_ does NOT return a
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# python list, but a "list-like" StringVec object
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final_flags = MakeRelativePathsInFlagsAbsolute(
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compilation_info.compiler_flags_,
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compilation_info.compiler_working_dir_)
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else:
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# We use default flags if GetCompilationInfoForFile can't find any flags
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relative_to = project_dir
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final_flags = MakeRelativePathsInFlagsAbsolute(flags, relative_to)
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return {'flags': final_flags, 'do_cache': True}
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