1 files changed, 65 insertions, 0 deletions
diff --git a/.ycm_extra_conf.py b/.ycm_extra_conf.py
new file mode 100644
index 0000000000..46e1387ec9
--- /dev/null
+++ b/.ycm_extra_conf.py
@@ -0,0 +1,65 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import json
+import os
+import shlex
+import subprocess
+import sys
+
+old_bytecode = sys.dont_write_bytecode
+sys.dont_write_bytecode = True
+
+path = os.path.abspath(os.path.join(os.path.dirname(__file__), "mach"))
+
+# If mach is not here, we're on the objdir go to the srcdir.
+if not os.path.exists(path):
+    with open(os.path.join(os.path.dirname(__file__), "mozinfo.json")) as info:
+        config = json.loads(info.read())
+    path = os.path.join(config["topsrcdir"], "mach")
+
+sys.dont_write_bytecode = old_bytecode
+
+
+def _is_likely_cpp_header(filename):
+    if not filename.endswith(".h"):
+        return False
+
+    if filename.endswith("Inlines.h") or filename.endswith("-inl.h"):
+        return True
+
+    cpp_file = filename[:-1] + "cpp"
+    return os.path.exists(cpp_file)
+
+
+def Settings(**kwargs):
+    if kwargs["language"] == "cfamily":
+        return FlagsForFile(kwargs["filename"])
+    # This is useful for generic language server protocols, like rust-analyzer,
+    # to discover the right project root instead of guessing based on where the
+    # closest Cargo.toml is.
+    return {
+        "project_directory": ".",
+    }
+
+
+def FlagsForFile(filename):
+    output = subprocess.check_output([path, "compileflags", filename])
+    output = output.decode("utf-8")
+
+    flag_list = shlex.split(output)
+
+    # This flag is added by Fennec for android build and causes ycmd to fail to parse the file.
+    # Removing this flag is a workaround until ycmd starts to handle this flag properly.
+    # https://github.com/Valloric/YouCompleteMe/issues/1490
+    final_flags = [x for x in flag_list if not x.startswith("-march=armv")]
+
+    if _is_likely_cpp_header(filename):
+        final_flags += ["-x", "c++"]
+
+    return {"flags": final_flags, "do_cache": True}
+
+
+if __name__ == "__main__":
+    print(FlagsForFile(sys.argv[1]))