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+;;; irony-cdb-clang-complete.el --- .clang_complete compilation database
+
+;; Copyright (C) 2014 Guillaume Papin
+
+;; Author: Guillaume Papin <guillaume.papin@epitech.eu>
+;; Keywords: c, convenience, tools
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program 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 General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; This file defines a compilation database for .clang_complete and
+;; compile_flags.txt, both of which have the same format.
+;;
+
+;;; Code:
+
+(require 'irony-cdb)
+
+(require 'cl-lib)
+
+;;;###autoload
+(defun irony-cdb-clang-complete (command &rest args)
+ (cl-case command
+ (get-compile-options (irony-cdb-clang-complete--get-compile-options))))
+
+(defun irony-cdb-clang-complete--get-compile-options ()
+ (irony--awhen (irony-cdb-clang-complete--locate-db)
+ (irony-cdb-clang-complete--load-db it)))
+
+(defun irony-cdb-clang-complete--locate-db ()
+ (when buffer-file-name
+ (catch 'fname
+ (locate-dominating-file
+ buffer-file-name
+ ;; locate-dominating-file will invoke the lambda on suitable
+ ;; directories, and if we have either of our files there, we
+ ;; return its filename, by throwing it.
+ (lambda (d)
+ (let ((cfname (concat (file-name-as-directory d) "compile_flags.txt"))
+ (ccname (concat (file-name-as-directory d) ".clang_complete")))
+ (if (file-exists-p cfname)
+ (throw 'fname cfname)
+ (if (file-exists-p ccname)
+ (throw 'fname ccname)
+ nil))))))))
+
+(defun irony-cdb-clang-complete--load-db (cc-file)
+ (with-temp-buffer
+ (insert-file-contents cc-file)
+ (list
+ (cons
+ ;; compile options with trailing whitespaces removed
+ (mapcar #'(lambda (line)
+ (if (string-match "[ \t]+$" line)
+ (replace-match "" t t line)
+ line))
+ (split-string (buffer-string) "\n" t))
+ ;; working directory
+ (expand-file-name (file-name-directory cc-file))))))
+
+(provide 'irony-cdb-clang-complete)
+
+;; Local Variables:
+;; byte-compile-warnings: (not cl-functions)
+;; End:
+
+;;; irony-cdb-clang-complete ends here