254 lines
10 KiB
EmacsLisp
254 lines
10 KiB
EmacsLisp
;;; helm-spacemacs.el --- Spacemacs layer exploration with `helm'.
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;; Author: Sylvain Benner <sylvain.benner@gmail.com>
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;; Keywords: helm, spacemacs
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;; Version: 0.1
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;; Package-Requires: ((helm "1.5"))
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;; This file is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;; This file is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;; This package adds a convenient way to discover Spacemacs configuration
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;; layers thanks to helm.
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;;; Code:
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(require 'cl)
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(require 'ht)
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(require 'helm)
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(require 'core-configuration-layer)
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(defvar helm-spacemacs-all-layers nil
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"Alist of all configuration layers.")
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(defvar helm-spacemacs-all-packages nil
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"Hash table of all packages in all layers.")
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;;;###autoload
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(define-minor-mode helm-spacemacs-mode
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"Layers discovery with helm interface."
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:group 'spacemacs
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:global t)
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(defun helm-spacemacs//init (&optional arg)
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(when (or arg (null helm-spacemacs-all-packages))
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(mapc (lambda (layer) (push (configuration-layer/make-layer layer)
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helm-spacemacs-all-layers))
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(configuration-layer/get-layers-list))
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(dolist (layer helm-spacemacs-all-layers)
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(unless (configuration-layer/layer-usedp (oref layer :name))
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(configuration-layer//load-layer-files layer '("funcs.el"
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"config.el"))))
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(setq helm-spacemacs-all-packages (configuration-layer/get-packages
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helm-spacemacs-all-layers))))
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;;;###autoload
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(defun helm-spacemacs (arg)
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"Layers discovery with helm interface."
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(interactive "P")
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(helm-spacemacs-mode)
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(helm-spacemacs//init arg)
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(helm :buffer "*helm: spacemacs*"
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:sources `(,(helm-spacemacs//documentation-source)
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,(helm-spacemacs//layer-source)
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,(helm-spacemacs//package-source)
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,(helm-spacemacs//dotspacemacs-source)
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,(helm-spacemacs//toggle-source))))
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(defun helm-spacemacs//documentation-source ()
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"Construct the helm source for the documentation section."
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(helm-build-sync-source "Spacemacs Documentation"
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:candidates #'helm-spacemacs//documentation-candidates
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:persistent-action #'helm-spacemacs//documentation-action-open-file
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:keymap helm-map
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:action (helm-make-actions
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"Open Documentation" #'helm-spacemacs//documentation-action-open-file)))
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(defun helm-spacemacs//documentation-candidates ()
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(let (result file-extension)
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(dolist (filename (directory-files spacemacs-docs-directory))
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(setq file-extension (file-name-extension filename))
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(when (or (equal file-extension "md")
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(equal file-extension "org"))
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(push filename result)))
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;; delete DOCUMENTATION.org to make it the first guide
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(delete "DOCUMENTATION.org" result)
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(push "DOCUMENTATION.org" result)
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;; give each document an appropriate title
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(mapcar (lambda (r)
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(cond
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((string-equal r "CONTRIBUTE.org")
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`("How to contribute to Spacemacs" . ,r))
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((string-equal r "CONVENTIONS.org")
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`("Spacemacs conventions" . ,r))
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((string-equal r "DOCUMENTATION.org")
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`("Spacemacs documentation" . ,r))
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((string-equal r "FAQ.org")
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`("Spacemacs FAQ" . ,r))
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((string-equal r "HOWTOs.org")
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`("Quick HOW-TOs for Spacemacs" . ,r))
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((string-equal r "LAYERS.org")
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`("Tips on writing layers for Spacemacs" . ,r))
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((string-equal r "QUICK_START.org")
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`("Quick start guide for Spacemacs" . ,r))
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((string-equal r "VIMUSERS.org")
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`("Vim users migration guide" . ,r))
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(t
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`(r . ,r))))
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result)))
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(defun helm-spacemacs//documentation-action-open-file (candidate)
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"Open documentation FILE."
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(let ((file (concat spacemacs-docs-directory candidate)))
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(cond ((and (equal (file-name-extension file) "md")
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(not helm-current-prefix-arg))
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(condition-case nil
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(with-current-buffer (find-file-noselect file)
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(gh-md-render-buffer)
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(kill-this-buffer))
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;; if anything fails, fall back to simply open file
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(find-file file)))
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((equal (file-name-extension file) "org")
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(spacemacs/view-org-file file "^" 'all))
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(t
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(find-file file)))))
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(defun helm-spacemacs//layer-source ()
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"Construct the helm source for the layer section."
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`((name . "Layers")
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(candidates . ,(sort (configuration-layer/get-layers-list) 'string<))
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(candidate-number-limit)
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(action . (("Open README.org"
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. helm-spacemacs//layer-action-open-readme)
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("Open packages.el"
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. helm-spacemacs//layer-action-open-packages)
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;; TODO remove extensions in 0.105.0
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("Open extensions.el"
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. helm-spacemacs//layer-action-open-extensions)))))
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(defun helm-spacemacs//package-source ()
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"Construct the helm source for the packages."
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`((name . "Packages")
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(candidates . ,(helm-spacemacs//package-candidates))
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(candidate-number-limit)
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(action . (("Go to init function"
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. helm-spacemacs//package-action-goto-init-func)))))
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(defun helm-spacemacs//package-candidates ()
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"Return the sorted candidates for package source."
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(let (result)
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(dolist (pkg helm-spacemacs-all-packages)
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(push (format "(%S) package: %S" (oref pkg :owner) (oref pkg :name))
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result))
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(sort result 'string<)))
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(defun helm-spacemacs//toggle-source ()
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"Construct the helm source for the toggles."
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(helm-build-sync-source "Toggles"
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:candidates #'helm-spacemacs//toggle-candidates
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:persistent-action #'helm-spacemacs//toggle
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:keymap helm-map
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:action (helm-make-actions "Toggle" #'helm-spacemacs//toggle)))
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(defun helm-spacemacs//toggle-candidates ()
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"Return the sorted candidates for toggle source."
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(let (result)
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(dolist (toggle spacemacs-toggles)
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(let* ((toggle-symbol (symbol-name (car toggle)))
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(toggle-name (capitalize (replace-regexp-in-string "-" " " toggle-symbol)))
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(toggle-doc (format "%s: %s" toggle-name (plist-get (cdr toggle) :documentation))))
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(if (plist-member (cdr toggle) :documentation)
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(push `(,toggle-doc . ,toggle-symbol) result)
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(push `(,toggle-name . ,toggle-symbol) result))))
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(setq result (cl-sort result 'string< :key 'car))
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result))
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(defun helm-spacemacs//dotspacemacs-source ()
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`((name . "Dotfile")
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(candidates . ,(helm-spacemacs//dotspacemacs-candidates))
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(candidate-number-limit)
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(action . (("Go to variable" . helm-spacemacs//go-to-dotfile-variable)))))
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(defun helm-spacemacs//dotspacemacs-candidates ()
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"Return the sorted candidates for all the dospacemacs variables."
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(sort (dotspacemacs/get-variable-string-list) 'string<))
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(defun helm-spacemacs//layer-action-open-file (file candidate)
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"Open FILE of the passed CANDIDATE."
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(let ((path (if (and (equalp file "README.org") (equalp candidate "spacemacs"))
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;; Readme for spacemacs is in the project root
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(ht-get configuration-layer-paths (intern candidate))
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(file-name-as-directory
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(concat (ht-get configuration-layer-paths
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(intern candidate))
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candidate)))))
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(if (and (equal (file-name-extension file) "org")
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(not helm-current-prefix-arg))
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(spacemacs/view-org-file (concat path file) "^" 'all)
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(find-file (concat path file)))))
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(defun helm-spacemacs//layer-action-open-readme (candidate)
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"Open the `README.org' file of the passed CANDIDATE."
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(helm-spacemacs//layer-action-open-file "README.org" candidate))
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(defun helm-spacemacs//layer-action-open-packages (candidate)
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"Open the `packages.el' file of the passed CANDIDATE."
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(helm-spacemacs//layer-action-open-file "packages.el" candidate))
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;; TODO remove extensions in 0.105.0
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(defun helm-spacemacs//layer-action-open-extensions (candidate)
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"Open the `extensions.el' file of the passed CANDIDATE."
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(helm-spacemacs//layer-action-open-file "extensions.el" candidate))
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(defun helm-spacemacs//package-action-goto-init-func (candidate)
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"Open the file `packages.el' and go to the init function."
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(save-match-data
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(string-match "^(\\(.+\\))\s\\(.+\\):\s\\(.+\\)$" candidate)
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(let* ((layer (match-string 1 candidate))
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(type (match-string 2 candidate))
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(package (match-string 3 candidate))
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(path (file-name-as-directory
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(concat (ht-get configuration-layer-paths (intern layer))
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layer)))
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(filename (cond ((string-equal "package" type)
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(concat path "packages.el"))
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;; TODO remove extensions in 0.105.0
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(t (concat path "extensions.el")))))
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(find-file filename)
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(goto-char (point-min))
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(re-search-forward (format "init-%s" package))
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(beginning-of-line))))
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(defun helm-spacemacs//toggle (candidate)
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"Toggle candidate."
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(let ((toggle (assq (intern candidate) spacemacs-toggles)))
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(when toggle
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(funcall (plist-get (cdr toggle) :function)))))
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(defun helm-spacemacs//go-to-dotfile-variable (candidate)
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"Go to candidate in the dotfile."
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(find-file dotspacemacs-filepath)
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(goto-char (point-min))
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;; try to exclude comments
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(re-search-forward (format "^[a-z\s\\(\\-]*%s" candidate))
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(beginning-of-line))
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(provide 'helm-spacemacs)
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;;; helm-spacemacs.el ends here
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