115 lines
6 KiB
Org Mode
115 lines
6 KiB
Org Mode
#+TITLE: Ivy layer
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#+TAGS: completion|layer
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* Table of Contents :TOC_5_gh:noexport:
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- [[#description][Description]]
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- [[#features][Features:]]
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- [[#install][Install]]
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- [[#configuration][Configuration]]
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- [[#general][General]]
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- [[#advanced-buffer-information][Advanced buffer information]]
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- [[#key-bindings][Key bindings]]
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- [[#transient-state][Transient state]]
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- [[#colorsfaces][Colors/Faces]]
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* Description
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This layer enables Ivy for completion. It will replace the default completion by
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[[https://github.com/emacs-helm/helm][Helm]].
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These completion systems are the central control towers of Spacemacs, they are
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used to manage buffers, projects, search results, configuration layers, toggles
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and more...
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Mastering your choice of completion system will make you a Spacemacs power user.
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** Features:
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- Project wide =grep= like text search via =search-auto=
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- Project wide text replacements using =counsel-imenu=
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- Buffer wide dynamic text search via =swiper=
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- Detailed configuration parameters for ivy appearance
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- Intuitive =transient state=
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- Advanced buffer information with =ivy-rich=
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* Install
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To use this configuration layer, add it to your =~/.spacemacs=. You will need to
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add =ivy= to the existing =dotspacemacs-configuration-layers= list in this
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file.
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* Configuration
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** General
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You can customize ivy with the following variables:
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- =ivy-wrap= Whether ~C-n~ and ~C-p~ should wrap-around when at the first or
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last candidate. The default value is =nil=.
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- =ivy-extra-directories= Setting this to =nil= hides . and .. directories from
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file name completion. You can still go up a directory up by ~DEL~.
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The default value is ("../", "./").
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- =ivy-use-virtual-buffers= Add bookmarks and recent files to buffer completion
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menu. The Spacemacs default is t.
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- =ivy-height= The height of the minibuffer. The Spacemacs default is 15.
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- =ivy-use-selectable-prompt= When non-nil, make the prompt line selectable like
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a candidate. The Spacemacs default value is =t=.
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- =ivy-re-builders-alist= An alist of regex building functions for each
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collection function. See ivy documentation for possible choices. Use
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=spacemacs/ivy--regex-plus= instead of =ivy--regex-plus= to get correct
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highlighting in the search results of =spacemacs/search-project-auto= and
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similar search commands provided by Spacemacs.
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- =ivy-ret-visits-directory= Whether ~RET~ and ~C-j~ should be swapped in ivy
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minibuffer so ~RET~ acts like Ido and descends into directory. It is described
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[[https://github.com/abo-abo/swiper/wiki/ido-style-folder-navigation][here]] (probably outdated). Default value is =nil=.
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** Advanced buffer information
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To display more information about buffers set the layer variable
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=ivy-enable-advanced-buffer-information= to =t= which will enable =ivy-rich=.
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Note that =ivy-rich= has been reported to be very slow on =macOS=. This feature
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is disabled by default.
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#+BEGIN_SRC emacs-lisp
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(setq-default dotspacemacs-configuration-layers '(
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(ivy :variables ivy-enable-advanced-buffer-information t)))
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#+END_SRC
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* Key bindings
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If you choose =ivy= as completion system, make sure to read the [[http://oremacs.com/swiper/][official manual]].
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In case you don't want to read everything, at least familiarise with
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[[http://oremacs.com/swiper/#minibuffer-key-bindings][minibuffer key bindings]].
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Some useful key bindings are presented in the following table.
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| Key binding | Description |
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|-------------+------------------------------------------------------------------------------------------------------|
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| ~RET~ | call default action on current candidate |
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| ~M-RET~ | the same as ~RET~ but doesn't close completion minibuffer |
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| ~C-M-j~ | use current input immediately (this can be used to create a new file in Find File) |
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| ~TAB~ | complete partially |
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| ~M-o~ | show the list of valid actions on current candidate (then press any of described keys to execute it) |
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| ~C-M-o~ | the same as ~M-o~ but doesn't close completion minibuffer |
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| ~C-'~ | use avy to quickly select completion on current page (sometimes faster than using arrows) |
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| ~<ESC>~ | close minibuffer |
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| ~C-M-k~ | kill buffer (in =ivy-switch-buffer= (~SPC b b~)) |
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** Transient state
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Press ~M-SPC~ (~m-M-SPC~ [[https://github.com/syl20bnr/spacemacs/blob/cb48ec74c1f401bd2945760799633c0e81e69088/doc/CONVENTIONS.org#transient-state][on macOS]]) anytime in Ivy to get into the transient state. Additional actions
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are found in [[https://oremacs.com/swiper/#minibuffer-key-bindings][the Hydra section of the official manual]].
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| Key binding | Description |
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|-------------+---------------------------------------------------------|
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| ~j~ | select next candidate |
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| ~k~ | select previous candidate |
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| ~d~ | call default action on candidate |
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| ~f~ | call alternative action on candidate |
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| ~g~ | the same as ~d~ but doesn't close completion minibuffer |
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| ~o~ | leave transient state |
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| ~m~ | mark candidate |
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| ~u~ | unmark candidate |
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| ~t~ | toggle marks |
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** Colors/Faces
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| Key binding | Description |
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|-------------+-------------------------|
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| ~SPC C e~ | =counsel-colors-emacs= |
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| ~SPC C f~ | =counsel-colors-faces= |
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| ~SPC C w~ | =counsel-colors-web= |
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| ~SPC h d F~ | =counsel-describe-face= |
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