mirror of
https://github.com/polybar/polybar.git
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126 lines
4.2 KiB
Python
126 lines
4.2 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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[x for x in compilation_info.compiler_flags_ if x != "-Werror"],
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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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