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spacemacs/layers/+completion/ivy/local/ivy-spacemacs-help/ivy-spacemacs-help.el
Nikita Leshenko d0089a23de ivy: spacemacs-help: Fix candidate layers with no packages
When a layer doesn't have a package, its name was added to the candidate list as
a symbol instead of a string, breaking actions such as
layer-action-open-packages which expect a string.
2018-01-06 22:29:15 -05:00

394 lines
16 KiB
EmacsLisp

;;; ivy-spacemacs-help.el --- Spacemacs layer exploration with `ivy'.
;; Author: Justin Burkett <justin@burkett.cc>
;; Keywords: ivy, spacemacs
;; Version: 0.1
;; Package-Requires: ((ivy "0.7"))
;; 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 configuration
;; layers thanks to ivy.
;;; Code:
(require 'cl)
(require 'ht)
(require 'ivy)
(require 'core-configuration-layer)
(defvar ivy-spacemacs--initialized nil
"Non nil if ivy-spacemacs is initialized.")
;; (defvar ivy-spacemacs-help-all-layers nil
;; "Alist of all configuration layers.")
;; (defvar ivy-spacemacs-help-all-packages nil
;; "Hash table of all packages in all layers.")
(defun ivy-spacemacs-help//init (&optional arg)
(when (or arg (null ivy-spacemacs--initialized))
(configuration-layer/make-all-packages)
(setq ivy-spacemacs--initialized t)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Docs
(defun ivy-spacemacs-help//documentation-candidates ()
(let (result file-extension)
(dolist (filename (directory-files spacemacs-docs-directory))
(setq file-extension (file-name-extension filename))
(when (or (equal file-extension "md")
(equal file-extension "org"))
(push filename result)))
;; CONTRIBUTING.org is a special case as it should be at the root of the
;; repository to be linked as the contributing guide on Github.
(push "CONTRIBUTING.org" result)
;; delete DOCUMENTATION.org to make it the first guide
(delete "DOCUMENTATION.org" result)
(push "DOCUMENTATION.org" result)
;; give each document an appropriate title
(mapcar (lambda (r)
(cond
((string-equal r "BEGINNERS_TUTORIAL.org")
`("Beginners tutorial" . ,r))
((string-equal r "CONTRIBUTING.org")
`("How to contribute to Spacemacs" . ,r))
((string-equal r "CONVENTIONS.org")
`("Spacemacs conventions" . ,r))
((string-equal r "DOCUMENTATION.org")
`("Spacemacs documentation" . ,r))
((string-equal r "FAQ.org")
`("Spacemacs FAQ" . ,r))
((string-equal r "LAYERS.org")
`("Tips on writing layers for Spacemacs" . ,r))
((string-equal r "QUICK_START.org")
`("Quick start guide for Spacemacs" . ,r))
((string-equal r "VIMUSERS.org")
`("Vim users migration guide" . ,r))
(t
`(r . ,r))))
result)))
(defun ivy-spacemacs-help//documentation-action-open-file (candidate)
"Open documentation FILE."
(let* ((candidate (cdr candidate))
(file (if (string= candidate "CONTRIBUTING.org")
;; CONTRIBUTING.org is a special case as it should be at the
;; root of the repository to be linked as the contributing
;; guide on Github.
(concat spacemacs-start-directory candidate)
(concat spacemacs-docs-directory candidate))))
(cond ((equal (file-name-extension file) "md")
(condition-case-unless-debug nil
(with-current-buffer (find-file-noselect file)
(gh-md-render-buffer)
(spacemacs/kill-this-buffer))
;; if anything fails, fall back to simply open file
(find-file file)))
((equal (file-name-extension file) "org")
(spacemacs/view-org-file file "^" 'all))
(t
(find-file file)))))
;;;###autoload
(defun ivy-spacemacs-help-docs (arg)
(interactive "P")
(ivy-spacemacs-help//init arg)
(ivy-read "Spacemacs Documentation: "
(ivy-spacemacs-help//documentation-candidates)
:action #'ivy-spacemacs-help//documentation-action-open-file))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Layers
(defun ivy-spacemacs-help//layer-candidates ()
(sort (mapcar 'symbol-name (configuration-layer/get-layers-list))
'string<))
(defun ivy-spacemacs-help//layer-action-get-directory (candidate)
"Get directory of layer passed CANDIDATE."
(configuration-layer/get-layer-path (intern candidate)))
(defun ivy-spacemacs-help//layer-action-open-file (file candidate &optional edit)
"Open FILE of the passed CANDIDATE. If EDIT is false, open in view mode."
(let ((path (configuration-layer/get-layer-path (intern candidate))))
(if (equal (file-name-extension file) "org")
(if edit
(find-file (concat path file))
(spacemacs/view-org-file (concat path file) "^" 'all))
(let ((filepath (concat path file)))
(if (file-exists-p filepath)
(find-file filepath)
(message "%s does not have %s" candidate file))))))
(defun ivy-spacemacs-help//layer-action-open-readme (candidate)
"Open the `README.org' file of the passed CANDIDATE for reading."
(ivy-spacemacs-help//layer-action-open-file "README.org" candidate))
(defun ivy-spacemacs-help//layer-action-add-layer (candidate)
"Adds layer to dotspacemacs file and reloads configuration"
(if (configuration-layer/layer-used-p (intern candidate))
(message "Layer already added.")
(let ((dotspacemacs (find-file-noselect (dotspacemacs/location))))
(with-current-buffer dotspacemacs
(beginning-of-buffer)
(let ((insert-point (re-search-forward
"dotspacemacs-configuration-layers *\n?.*\\((\\)")))
(insert (format "\n%s\n" candidate))
(indent-region insert-point (+ insert-point (length candidate)))
(save-current-buffer)))
(dotspacemacs/sync-configuration-layers))))
(defun ivy-spacemacs-help//layer-action-open-dired (candidate)
"Open dired at the location of the passed layer CANDIDATE."
(dired
(ivy-spacemacs-help//layer-action-get-directory candidate)))
(defun ivy-spacemacs-help//layer-action-open-readme-edit (candidate)
"Open the `README.org' file of the passed CANDIDATE for editing."
(ivy-spacemacs-help//layer-action-open-file "README.org" candidate t))
(defun ivy-spacemacs-help//layer-action-open-config (candidate)
"Open the `config.el' file of the passed CANDIDATE."
(ivy-spacemacs-help//layer-action-open-file "config.el" candidate))
(defun ivy-spacemacs-help//layer-action-open-packages (candidate)
"Open the `packages.el' file of the passed CANDIDATE."
(ivy-spacemacs-help//layer-action-open-file "packages.el" candidate))
;;;###autoload
(defun ivy-spacemacs-help-layers ()
(interactive)
(ivy-spacemacs-help//init)
(ivy-read "Spacemacs Layers: "
(ivy-spacemacs-help//layer-candidates)
:action 'ivy-spacemacs-help//layer-action-open-readme
:caller 'ivy-spacemacs-help-layers))
(ivy-set-actions
'ivy-spacemacs-help-layers
'(("a" ivy-spacemacs-help//layer-action-add-layer "add layer")
("d" ivy-spacemacs-help//layer-action-open-dired "open dired at layer location")
("e" ivy-spacemacs-help//layer-action-open-readme-edit "open readme for editing")
("c" ivy-spacemacs-help//layer-action-open-config "open config.el")
("p" ivy-spacemacs-help//layer-action-open-packages "open packages.el")
("r" ivy-spacemacs-help//layer-action-open-readme "open readme")))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Layers and packages
(defun ivy-spacemacs-help//help-candidates ()
"Return the sorted candidates for package source."
(let (result
(left-column-width
(number-to-string
(cl-reduce
(lambda (a x) (max (length (symbol-name x)) a))
(configuration-layer/get-layers-list) :initial-value 0)))
(owners (cl-remove-duplicates
(mapcar (lambda (pkg)
(let ((obj (configuration-layer/get-package pkg)))
(car (oref obj :owners))))
(configuration-layer/get-packages-list)))))
(dolist (pkg-name (configuration-layer/get-packages-list))
(let ((pkg (configuration-layer/get-package pkg-name)))
(push (list (format (concat "%-" left-column-width "S %s %s")
(car (oref pkg :owners ))
(propertize (symbol-name (oref pkg :name))
'face 'font-lock-type-face)
(propertize
(if (package-installed-p (oref pkg :name))
"[installed]" "")
'face 'font-lock-comment-face))
(symbol-name
(car (oref pkg :owners )))
(symbol-name (oref pkg :name)))
result)))
(dolist (layer (delq nil
(cl-remove-if
(lambda (x) (memq x owners))
(configuration-layer/get-layers-list))))
(push (list (format (concat "%-" left-column-width "S %s")
layer
(propertize "no packages"
'face 'warning))
(symbol-name layer)
nil)
result))
(sort result (lambda (a b) (string< (car a) (car b))))))
(defun ivy-spacemacs-help//help-action (args)
"Open the file `packages.el' and go to the init function."
(if (null (caddr args))
(message "There are no packages associated with this layer.")
(let* ((layer-str (cadr args))
(layer-sym (intern layer-str))
(package-str (caddr args))
(path (configuration-layer/get-layer-path layer-sym))
(filename (concat path "packages.el")))
(find-file filename)
(goto-char (point-min))
(re-search-forward (format "init-%s" package-str))
(beginning-of-line))))
(defun ivy-spacemacs-help//help-action-describe-package (args)
"Describe the passed package using Spacemacs describe function."
(if (null (caddr args))
(message "There are no packages associated with this layer.")
(let ((package-str (caddr args)))
(configuration-layer/describe-package (intern package-str)))))
(defun ivy-spacemacs-help//help-action-open-dired (args)
"Open the `packages.el' file of the passed `car' of ARGS."
(dired
(ivy-spacemacs-help//layer-action-get-directory (cadr args))))
(defun ivy-spacemacs-help//help-action-open-config (args)
"Open the `packages.el' file of the passed CANDIDATE."
(ivy-spacemacs-help//layer-action-open-file "config.el" (cadr args)))
(defun ivy-spacemacs-help//help-action-open-packages (args)
"Open the `packages.el' file of the passed CANDIDATE."
(ivy-spacemacs-help//layer-action-open-file "packages.el" (cadr args)))
(defun ivy-spacemacs-help//help-action-open-readme (args)
"Open the `README.org' file of the passed CANDIDATE for reading."
(ivy-spacemacs-help//layer-action-open-file "README.org" (cadr args)))
(defun ivy-spacemacs-help//help-action-open-readme-edit (args)
"Open the `README.org' file of the passed CANDIDATE for editing."
(ivy-spacemacs-help//layer-action-open-file "README.org" (cadr args) t))
(defun ivy-spacemacs-help//help-action-add-layer (args)
"Adds layer to dotspacemacs file and reloads configuration"
(if (configuration-layer/layer-used-p (intern (cadr args)))
(message "Layer already added.")
(let ((dotspacemacs (find-file-noselect (dotspacemacs/location))))
(with-current-buffer dotspacemacs
(beginning-of-buffer)
(let ((insert-point (re-search-forward
"dotspacemacs-configuration-layers *\n?.*\\((\\)")))
(insert (format "\n%s\n" (cadr args)))
(indent-region insert-point (+ insert-point (length (cadr args))))
(save-current-buffer)))
(dotspacemacs/sync-configuration-layers))))
;;;###autoload
(defun ivy-spacemacs-help ()
(interactive)
(ivy-spacemacs-help//init)
(ivy-read "Spacemacs Layers and Packages: "
(ivy-spacemacs-help//help-candidates)
:action 'ivy-spacemacs-help//help-action
:caller 'ivy-spacemacs-help))
(ivy-set-actions
'ivy-spacemacs-help
'(("a" ivy-spacemacs-help//help-action-add-layer "add layer")
("d" ivy-spacemacs-help//help-action-open-dired "open dired at layer location")
("D" ivy-spacemacs-help//help-action-describe-package "describe package")
("e" ivy-spacemacs-help//help-action-open-readme-edit "open readme for editing")
("c" ivy-spacemacs-help//help-action-open-config "open config.el")
("p" ivy-spacemacs-help//help-action-open-packages "open packages.el")
("r" ivy-spacemacs-help//help-action-open-readme "open readme")))
;;;###autoload
(defalias 'ivy-spacemacs-help-packages 'ivy-spacemacs-help)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Toggles
(defun ivy-spacemacs-help//toggle-candidates ()
"Return the sorted candidates for toggle source."
(let (result)
(dolist (toggle spacemacs-toggles)
(let* ((toggle-symbol (symbol-name (car toggle)))
(toggle-status (funcall (plist-get (cdr toggle) :predicate)))
(toggle-name (capitalize (replace-regexp-in-string "-" " " toggle-symbol)))
(toggle-doc (format "(%s) %s: %s"
(if toggle-status "+" "-")
toggle-name
(propertize
(or (plist-get (cdr toggle) :documentation) "")
'face 'font-lock-doc-face))))
(when (plist-member (cdr toggle) :evil-leader)
(let ((key (key-description
(kbd (concat dotspacemacs-leader-key " "
(plist-get (cdr toggle) :evil-leader))))))
(setq toggle-doc
(format "%s (%s)"
toggle-doc
(propertize key 'face 'font-lock-keyword-face)))))
(if (plist-member (cdr toggle) :documentation)
(push `(,toggle-doc . ,toggle-symbol) result)
(push `(,toggle-name . ,toggle-symbol) result))))
(setq result (cl-sort result 'string< :key 'car))
result))
(defun ivy-spacemacs-help//toggle (candidate)
"Toggle candidate."
(let ((toggle (assq (intern candidate) spacemacs-toggles)))
(when toggle
(funcall (plist-get (cdr toggle) :function)))))
;;;###autoload
(defun ivy-spacemacs-help-toggles ()
(interactive)
(ivy-read "Spacemacs Toggles: "
(ivy-spacemacs-help//toggle-candidates)
:action 'ivy-spacemacs-help//toggle))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; .spacemacs vars
(defun ivy-spacemacs-help//dotspacemacs-candidates ()
"Return the sorted candidates for all the dospacemacs variables."
(sort (dotspacemacs/get-variable-string-list) 'string<))
(defun ivy-spacemacs-help//go-to-dotfile-variable (candidate)
"Go to candidate in the dotfile."
(find-file dotspacemacs-filepath)
(goto-char (point-min))
;; try to exclude comments
(re-search-forward (format "^[a-z\s\\(\\-]*%s" candidate))
(beginning-of-line))
;;;###autoload
(defun ivy-spacemacs-help-dotspacemacs ()
(interactive)
(ivy-read ".spacemacs variables: "
(ivy-spacemacs-help//dotspacemacs-candidates)
:action 'ivy-spacemacs-help//go-to-dotfile-variable))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; FAQ
;;;###autoload
(defun ivy-spacemacs-help-faq ()
"Show FAQ and launch swiper session."
(interactive)
(find-file-read-only
(expand-file-name "FAQ.org" spacemacs-docs-directory))
(swiper "\\*\\* "))
(provide 'ivy-spacemacs-help)
;;; ivy-spacemacs-help.el ends here