providing global .clang_complete file?

[agauniyal]

For general completion when not using cmake as build system, or small 1-2 files autocompletion. YCM does this by providing a flag accepting location for global ycm_config file.

[agauniyal]

YCM has these for global conf which makes it a bit easier.

flags = [
'-Wall',
'-Wextra',
'-Werror',
'-Wno-long-long',
'-Wno-variadic-macros',
'-fexceptions',
'-DNDEBUG',
'-std=c++14',
'-x',
'c++',
'-isystem',
'../BoostParts',
'-isystem',
'/System/Library/Frameworks/Python.framework/Headers',
'-isystem',
'../llvm/include',
'-isystem',
'../llvm/tools/clang/include',
'-I',
'.',
'-I',
'./ClangCompleter',
'-isystem',
'./tests/gmock/gtest',
'-isystem',
'./tests/gmock/gtest/include',
'-isystem',
'./tests/gmock',
'-isystem',
'./tests/gmock/include',
'/usr/lib/libXbgi.a',
'-lX11',
'-lm'
]

[Sarcasm]

You have 2 options:

Either create a .clang_complete file in your home directory for example, it will end up being used as a fallback. This may be a little hacky.

Another good solution is to write a custom compilation database for this, it should be fairly straightforward, see documentation at

irony-mode/irony-cdb.el

Lines 50 to 78 in 3e9d37c

	(defcustom irony-cdb-compilation-databases '(irony-cdb-clang-complete
	irony-cdb-libclang
	irony-cdb-json)
	"List of active compilation databases.
	The compilation database should respond for the following commands:
	`get-compile-options': Takes no argument. This function finds the
	compile options used for the current buffer. It must return a
	list of cons where the first element is a set of compile options
	and the second element the working directory expected for these
	commands. The compilation database should return an empty list
	for files that it cannot handle."
	:type '(repeat function)
	:group 'irony-cdb)
	(defcustom irony-cdb-search-directory-list '("." "build")
	"List of relative subdirectory paths to be searched for cdb files
	Irony looks for cdb files in any of the supported format by checking
	each directory from the currently loaded file and recursively through
	parent directories until it hits the root directory or a cdb is
	found. At each level of the search irony looks at the subdirectories
	listed in `'irony-cdb-search-directory-list` for the files. Customize this
	list if your cdb is held in a custom directory within you project,
	such as a custom named build directory.
	"
	:type '(repeat string)
	:group 'irony-cdb)

It's on my todo list to have something nice to do it but I haven't get to do it yet.

[agauniyal]

Can you add a function for specifying global .clang_complete file? I'm fairly new to emacs and don't know a thing about lisp so I guess I would have to do it with home-directory method :/