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#!/usr/bin/env python
# Copyright (C) 2013 Danilo Cesar Lemes de Paula <danilo.eu@gmail.com>
# Copyright (C) 2014 ChangSeok Oh <shivamidow@gmail.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
import os
import sys
import ycm_core
# It's very likely that this script is a symlink somewhere in the WebKit directory,
# so we try to find the actual script location so that we can locate the tools
# directory.
original_file = __file__[:-1] if __file__.endswith(".pyc") else __file__
if os.path.islink(original_file):
parent_folder = os.path.abspath(os.path.dirname(original_file))
link_file = os.path.join(parent_folder, os.readlink(original_file))
__tools_directory = os.path.dirname(link_file)
else:
__tools_directory = os.path.dirname(original_file)
sys.path.insert(0, os.path.abspath(__tools_directory))
import common
FLAGS_PRECEDING_PATHS = ['-isystem', '-I', '-iquote', '--sysroot=']
def transform_relative_paths_to_absolute_paths(arguments, build_path):
result = []
make_next_absolute = False
for argument in arguments:
if make_next_absolute:
make_next_absolute = False
if not argument.startswith('/'):
argument = os.path.join(build_path, argument)
elif argument in FLAGS_PRECEDING_PATHS:
# Some flags precede the path in the list. For those we make the
# next argument absolute.
if argument == flag:
make_next_absolute = True
else:
# Some argument contain the flag and the path together. For these
# we parse the argument out of the path.
for flag in FLAGS_PRECEDING_PATHS:
if argument.startswith(flag):
argument = flag + os.path.join(build_path, argument[len(flag):])
break
result.append(argument)
return result
def get_build_path():
webkitbuild_path = os.path.join(common.get_build_path(fatal=False), '..')
if not os.path.exists(webkitbuild_path):
return None
release_build_path = os.path.join(webkitbuild_path, 'Release')
debug_build_path = os.path.join(webkitbuild_path, 'Debug')
try:
release_mtime = os.path.getmtime(os.path.join(release_build_path, 'compile_commands.json'))
except os.error:
release_mtime = 0
try:
debug_mtime = os.path.getmtime(os.path.join(debug_build_path, 'compile_commands.json'))
except os.error:
debug_mtime = 0
return release_build_path if release_mtime >= debug_mtime else debug_build_path
def FlagsForFile(filename, **kwargs):
"""This is the main entry point for YCM. Its interface is fixed.
Args:
filename: (String) Path to source file being edited.
Returns:
(Dictionary)
'flags': (List of Strings) Command line flags.
'do_cache': (Boolean) True if the result should be cached.
"""
result = {'flags': ['-std=c++11', '-x', 'c++'], 'do_cache': True}
# Headers can't be built, so we get the source file flags instead.
if filename.endswith('.h'):
alternative_extensions = ['.cpp', '.c']
for alternative_extension in alternative_extensions:
alternative_filename = filename[:-2] + alternative_extension
if os.path.exists(alternative_filename):
filename = alternative_filename
break
else:
return result
# Force config.h file inclusion, for GLib macros.
result['flags'].append("-includeconfig.h")
build_path = os.path.normpath(get_build_path())
if not build_path:
print "Could not find WebKit build path."
return result
database = ycm_core.CompilationDatabase(build_path)
if not database:
print "Could not find compile_commands.json in %s, You might forget to add CMAKE_EXPORT_COMPILE_COMMANDS=ON to cmakeargs" % build_path
return result
compilation_info = database.GetCompilationInfoForFile(filename)
if not compilation_info:
print "No compilation info."
return result
result['flags'] = transform_relative_paths_to_absolute_paths(list(compilation_info.compiler_flags_), compilation_info.compiler_working_dir_)
return result
if __name__ == "__main__":
import sys
if len(sys.argv) >= 2:
print FlagsForFile(sys.argv[1])
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