mirror of
https://github.com/Ryujinx/libsoundio.git
synced 2024-12-22 23:25:34 +00:00
127 lines
4.2 KiB
Python
127 lines
4.2 KiB
Python
import os
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import ycm_core
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import subprocess
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def DirectoryOfThisScript():
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return os.path.dirname( os.path.abspath( __file__ ) )
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def ExtractSearchPaths(compiler):
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def find_paths(compiler, c_arg):
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child = subprocess.Popen([compiler, c_arg, '-E', '-v', '-'], stdin=subprocess.PIPE, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
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stderr, stdout = child.communicate(input="")
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lines = stdout.split("\n")
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begin_token = '#include <...> search starts here:'
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end_token = 'End of search list.'
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def find_token_index(l, token):
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for index, item in enumerate(l):
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if item == token:
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return index
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raise Exception("token not found: %s" % token)
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begin_index = find_token_index(lines, begin_token)
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end_index = find_token_index(lines, end_token)
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return map(lambda x: x.strip(), lines[begin_index+1:end_index])
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results = find_paths(compiler, '-xc')
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results.extend(find_paths(compiler, '-xc++'))
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return results
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# Set this to the absolute path to the folder (NOT the file!) containing the
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# compile_commands.json file to use that instead of 'flags'. See here for
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# more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
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#
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# You can get CMake to generate this file for you by adding:
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# set( CMAKE_EXPORT_COMPILE_COMMANDS 1 )
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# to your CMakeLists.txt file.
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#
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# Most projects will NOT need to set this to anything; you can just change the
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# 'flags' list of compilation flags. Notice that YCM itself uses that approach.
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compilation_database_folder = os.path.join(DirectoryOfThisScript(), 'build')
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compiler = os.environ['CC']
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search_paths = ExtractSearchPaths(compiler)
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extra_flags = []
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for path in search_paths:
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extra_flags.append('-I')
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extra_flags.append(path)
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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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raise Exception("compilation database not found")
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SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', '.m', '.mm' ]
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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' ]
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def GetCompilationInfoForFile( filename ):
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# The compilation_commands.json file generated by CMake does not have entries
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# for header files. So we do our best by asking the db for flags for a
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# corresponding source file, if any. If one exists, the flags for that file
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# should be good enough.
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if IsHeaderFile( filename ):
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basename = os.path.splitext( filename )[ 0 ]
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for extension in SOURCE_EXTENSIONS:
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replacement_file = basename + extension
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if os.path.exists( replacement_file ):
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compilation_info = database.GetCompilationInfoForFile(
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replacement_file )
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if compilation_info.compiler_flags_:
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return compilation_info
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return None
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return database.GetCompilationInfoForFile( filename )
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def FlagsForFile( filename, **kwargs ):
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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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compilation_info = GetCompilationInfoForFile( filename )
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if not compilation_info:
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return None
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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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relative_to = DirectoryOfThisScript()
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moar_flags = MakeRelativePathsInFlagsAbsolute( extra_flags, relative_to )
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final_flags.extend(moar_flags)
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return {
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'flags': final_flags,
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'do_cache': True
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}
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