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spacemacs/layers/+completion/helm/local/helm-spacemacs-help/helm-spacemacs-faq.el
syl20bnr 6b6d365b96 Speed up SPC h SPC by moving FAQ source in its own feature
Getting FAQ candidates requires org to be loaded which in turn requires to
load magit (via orgit) etc...

This commit moves the FAQ helm source to a new feature helm-spacemacs-faq and
removes the FAQ source from SPC h SPC so the FAQs are only available as a helm
source via SPC h f.

But we have still the FAQ org file entry in SPC h SPC so it is easy to open
the file from the main help key binding.
2017-01-15 22:19:56 -05:00

85 lines
3 KiB
EmacsLisp

;;; helm-spacemacs-help.el --- Spacemacs layer exploration with `helm'.
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; Keywords: helm, spacemacs
;; Version: 0.1
;; Package-Requires: ((helm "1.5"))
;; This file 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, or (at your option)
;; any later version.
;; This file 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 GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; This package adds a convenient way to discover Spacemacs FAQs in a
;; a helm buffer.
;; These sources are not part of `helm-spacemacs-help' feature because
;; of its `org' dependency which triggers lots of `require'.
;;; Code:
(require 'helm-spacemacs-help)
(require 'helm-org)
(defvar helm-spacemacs-help--faq-filename
(concat spacemacs-docs-directory "FAQ.org")
"Location of the FAQ file.")
;;;###autoload
(defun helm-spacemacs-help-faq ()
"Helm session to search for the FAQ."
(interactive)
(helm-spacemacs-help-mode)
(helm :buffer "*helm: spacemacs*"
:sources `(,(helm-spacemacs-help//faq-source))))
(defun helm-spacemacs-help//faq-source ()
"Construct the helm source for the FAQ."
`((name . "FAQ")
(candidates . ,(helm-spacemacs-help//faq-candidates))
(candidate-number-limit)
(action . (("Go to question" . helm-spacemacs-help//faq-goto-marker)))))
(defun helm-spacemacs-help//faq-candidate (cand)
(let ((str (substring-no-properties (car cand))))
(when (string-match "\\`.*/\\([^/]*\\)/\\(.*\\)\\'" str)
(cons (concat (propertize
(match-string 1 str)
'face 'font-lock-type-face)
": " (match-string 2 str))
(cdr cand)))))
(defun helm-spacemacs-help//faq-candidates ()
(let* ((helm-org-format-outline-path nil)
(cands (helm-org-get-candidates (list helm-spacemacs-help--faq-filename)))
section result)
(dolist (c cands)
(let ((str (substring-no-properties (car c))))
(when (string-match "\\`\\* \\(.*\\)\\'" str)
(setq section (match-string 1 str)))
(when (string-match "\\`\\*\\* \\(.*\\)\\'" str)
(push (cons (concat (propertize section 'face 'font-lock-type-face)
": " (match-string 1 str))
(cdr c))
result))))
result))
(defun helm-spacemacs-help//faq-goto-marker (marker)
(find-file helm-spacemacs-help--faq-filename)
(goto-char marker)
(org-show-context)
(org-show-entry))
(provide 'helm-spacemacs-faq)
;;; helm-spacemacs-faq.el ends here