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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
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