[SublimeText] Get the clang flags with the same script that vim uses

tools/sublime/ninja_options_script.py

Index: tools/sublime/ninja_options_script.py
diff --git a/tools/sublime/ninja_options_script.py b/tools/sublime/ninja_options_script.py
index fe658da8be06d218dce8f1c67debff5474dcc455..bd93e9cd1548607ace8dd742e2ba6b9b24cababb 100755
--- a/tools/sublime/ninja_options_script.py
+++ b/tools/sublime/ninja_options_script.py
@@ -6,138 +6,39 @@
 # Usage within SublimeClang:
 #   "sublimeclang_options_script": "python
 #       ${project_path}/src/tools/sublime/ninja_options_script.py \
-#       ${project_path}/src \
-#       ${project_path}/src/out/Debug"
+#       -d '/path/to/depot_tools'"
+#
 #
 # NOTE: ${project_path} expands to the directory of the Sublime project file,
-# and SublimgClang passes the absolute file path to the current file as an
-# additional argument.
+# and SublimeClang passes the absolute file path to the current file as an
+# additional argument. You should change the -d argument to point to your
+# depot_tools directory.
 
-import fnmatch
-import logging
+import imp
+import optparse
 import os
-import sys
-
-# Change to an absolute reference if ninja is not on your path
-path_to_ninja = 'ninja'
-
-# Ninja file options to extract (add 'cflags' if you need the c flags too,
-# although these usually break things)
-ninja_file_options = ['defines', 'include_dirs', 'cflags_cc']
-
-def merge_options_dicts(options_dict_1, options_dict_2):
-  '''
-  Given two dictionaries of options, returns one dictionary with both sets of
-  options appended together.
-
-  Both dictionaries must have the same options, even if some of them are empty
-  lists.
-  '''
-  assert set(options_dict_1.keys()) == set(options_dict_2.keys()), \
-      "Both options dicts must have the same keys"
-  final_options_dict = {}
-  for key in options_dict_1:
-    final_options_dict[key] = options_dict_1[key] + options_dict_2[key]
-  return final_options_dict
-
-def extract_options_from_ninja_file(ninja_file_path, options_to_extract):
-  '''
-  Extracts the given options from the file at ninja_file_path and returns them
-  as a dictionary.
-  '''
-  extracted_options = dict((o, []) for o in options_to_extract)
-  for line in open(ninja_file_path):
-    for option in options_to_extract:
-      if line.strip().startswith(option):
-        extracted_options[option] += line.split('=', 1)[1].split()
-  return extracted_options
-
-def find_ninja_file_options(ninja_root_path, relative_file_path_to_find,
-                            options_to_extract):
-  '''
-  Returns a dictionary of the given extracted options for the ninja file for
-  relative_file_path_to_find.
-
-  The options are extracted from the first *.ninja file in ninja_root_path that
-  contains relative_file_path_to_find. Otherwise, the first *.ninja file that
-  contains relative_file_path_to_find without the file extension. Otherwise, the
-  script walks up directories until it finds ninja files and then concatenates
-  the found options from all of them.
-  '''
-  matches = []
-  for root, dirnames, filenames in os.walk(ninja_root_path):
-    for filename in fnmatch.filter(filenames, '*.ninja'):
-      matches.append(os.path.join(root, filename))
-  logging.debug("Found %d Ninja targets", len(matches))
-
-  # First, look for a *.ninja file containing the full filename.
-  for ninja_file in matches:
-    for line in open(ninja_file):
-      if relative_file_path_to_find in line:
-        return extract_options_from_ninja_file(ninja_file, options_to_extract)
-
-  # Next, look for a *.ninja file containing the basename (no extension).
-  # This is a fix for header files with a corresponding cpp file.
-  for ninja_file in matches:
-    for line in open(ninja_file):
-      if os.path.splitext(relative_file_path_to_find)[0] in line:
-        all_options = extract_options_from_ninja_file(ninja_file,
-                                                      options_to_extract)
-        if all_options['include_dirs']:
-          return all_options
-
-  # Finally, open any *.ninja files in the directory or higher.
-  current_path = os.path.join(ninja_root_path, 'obj',
-                              os.path.dirname(relative_file_path_to_find))
-  while current_path != ninja_root_path:
-    if os.path.exists(current_path):
-      matches = []
-      for root, dirnames, filenames in os.walk(ninja_root_path):
-        for filename in fnmatch.filter(filenames, '*.ninja'):
-          matches.append(os.path.join(root, filename))
-      logging.debug("Found %d Ninja targets", len(matches))
-
-      matches = []
-      for match in os.listdir(current_path):
-        if match.endswith('.ninja'):
-          matches.append(os.path.join(current_path, match))
-      all_options = dict((o, []) for o in options_to_extract)
-      for ninja_file in matches:
-        all_options = merge_options_dicts(all_options,
-            extract_options_from_ninja_file(ninja_file, options_to_extract))
-      # As soon as we have some include_dirs from the ninja files, return.
-      if all_options['include_dirs']:
-        return all_options
-    current_path = os.path.dirname(current_path)
-
-  return None
-
-project_path = sys.argv[1]
-build_path = sys.argv[2]
-file_path = sys.argv[3]
-
-logging.debug("Compiling file %s\n", file_path)
-# The file must be somewhere under the project folder...
-if not file_path.lower().startswith(project_path.lower()):
-  logging.error("File %s is not in current project folder %s\n",
-                file_path, project_path)
-  sys.exit(1)
-file_relative_path = os.path.relpath(file_path, project_path)
-
-# Look for a .ninja file that contains our current file, since the ninja
-# project file name is needed to construct the full Ninja target path.
-logging.debug("Searching for Ninja target")
-options = find_ninja_file_options(build_path, file_relative_path,
-                                  ninja_file_options)
-if not options:
-  logging.error("File %s is not in any Ninja file under %s",
-                file_relative_path, build_path)
-  sys.exit(2)
 
-for option in ninja_file_options:
-  for piece in options[option]:
-    # Resolve relative includes
-    if piece.startswith('-I'):
-      print('-I' + os.path.join(build_path, piece[2:]))
-    else:
-      print(piece)
+ycm_module_path = os.path.normpath(
+    os.path.join(os.path.dirname(os.path.abspath(__file__)),
+    '../vim/chromium.ycm_extra_conf.py'))
+ycm_extra_conf = imp.load_source('ycm_extra_conf', ycm_module_path)
+
+def main():
+  usage = "usage: %prog [options] file"
+  parser = optparse.OptionParser(usage)
+  parser.add_option("-d", "--depot_tools", dest="depot_path",
+                  help="path to depot_tools")
+  (options, args) = parser.parse_args()
+  if options.depot_path:
+    os.environ["PATH"] += ":%s" % options.depot_path
+  if len(args) != 1:
+    parser.error("incorrect number of arguments")
+
+  path = os.path.realpath(args[0])
+  results = ycm_extra_conf.FlagsForFile(path)
+
+  for flag in results['flags']:
+    print flag
+
+if __name__ == "__main__":
+  main()