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#+title: Completion configuration using vertico, consult and friends
* completion styles
#+begin_src emacs-lisp
(use-package emacs
:init
(setq completion-category-defaults nil
completion-cycle-threshold 3
completion-category-overrides
'((file (styles . (partial-completion))))))
#+end_src
* orderless
#+begin_src emacs-lisp
(use-package orderless
:ensure t
:init
(setq orderless-skip-highlighting t
orderless-component-separator "[ -/]+"
orderless-matching-styles
'(orderless-literal orderless-regexp orderless-initialism)))
#+end_src
* corfu
#+begin_src emacs-lisp
(use-package emacs
:init (setq completion-styles '(orderless)
tab-always-indent 'complete))
(use-package dabbrev
;; Swap M-/ and C-M-/
:bind (("M-/" . dabbrev-completion)
("C-M-/" . dabbrev-expand)))
(use-package corfu
:ensure t
:init (setq corfu-cycle t)
:bind (:map corfu-map
("TAB" . corfu-next)
("S-TAB" . corfu-previous)))
(corfu-global-mode)
#+end_src
* vertico
#+begin_src emacs-lisp
(use-package vertico
:ensure t
:init (setq vertico-count 20
vertico-cycle t)
:config
(defun jao--be-orderless (&rest _any)
(setq-local completion-styles '(orderless)))
(unless (eq completion-styles '(orderless))
(advice-add 'vertico--setup :before #'jao--be-orderless))
(vertico-mode))
#+end_src
* marginalia
#+begin_src emacs-lisp
(use-package marginalia
:ensure t
:bind (:map minibuffer-local-map ("C-M-a" . marginalia-cycle))
:custom ((marginalia-align-offset 1)
(marginalia-margin-threshold 200)
(marginalia-separator-threshold 120)
(marginalia-truncate-width 80)
(marginalia-annotators
'(marginalia-annotators-heavy marginalia-annotators-light nil))))
(marginalia-mode 1)
#+end_src
* consult
*** package
#+begin_src emacs-lisp
(use-package consult
:ensure t
:bind (("C-x M-:" . consult-complex-command)
("C-x b" . consult-buffer)
("C-x C-b" . consult-buffer)
;; ("C-x 4 b" . consult-buffer-other-window)
;; ("C-x 5 b" . consult-buffer-other-frame)
("C-c b" . project-find-file)
("C-c B" . bookmark-set)
("C-c h" . consult-history)
("C-c i" . consult-imenu)
("C-c I" . consult-project-imenu)
("C-c k" . consult-ripgrep)
("C-c K" . consult-git-grep)
("C-c l" . consult-locate)
("C-c m" . consult-mode-command)
("C-c s" . consult-line)
("C-x r x" . consult-register)
("C-x r b" . consult-bookmark)
("M-g b" . consult-bookmark)
("M-g m" . consult-mark)
("M-g e" . consult-error)
("M-s m" . consult-multi-occur)
("M-s o" . consult-outline)
("M-y" . consult-yank-pop)
("C-s" . isearch-forward)
("C-S-s" . consult-line)
("<help> a" . consult-apropos))
:custom ((consult-locate-command "locate --ignore-case --regexp ARG OPTS")
(consult-preview-key (kbd "`"))
(consult-config '((consult-mark :preview-key any))))
:init
(fset 'multi-occur #'consult-multi-occur)
:config
(require 'jao-compilation)
(defun jao-consult-project-root ()
(expand-file-name (or (jao-compilation-root) (vc-root-dir) "")))
(setq consult-project-root-function #'jao-consult-project-root)
(define-key consult-narrow-map (vconcat consult-narrow-key "?")
#'consult-narrow-help))
#+end_src
*** notmuch
#+begin_src emacs-lisp
(use-package consult-notmuch
:ensure t
:init (setq consult-notmuch-authors-width 30)
:config
(add-to-list 'consult-config '(consult-notmuch :preview-key any)))
(defvar jao-consult-notmuch-folders
(seq-mapcat (lambda (base)
(mapcar `(lambda (d) (format "%s/%s" ,base d))
(jao-list-mailboxes base)))
'("jao" "bigml" "feeds" "trove")))
(defun jao-consult-notmuch-folder (&optional tree folder)
(interactive "P")
(let* ((root "~/var/mail/")
(folder (if folder
(file-name-as-directory folder)
(completing-read "Folder: "
jao-consult-notmuch-folders)))
(folder (replace-regexp-in-string "/\\(.\\)" ".\\1" folder))
(init (read-string "Initial query: "))
(init (format "folder:/%s/ %s" folder init)))
(if tree (consult-notmuch-tree init) (consult-notmuch init))))
#+end_src
*** recoll
#+begin_src emacs-lisp
(jao-load-path "consult-recoll")
(defun jao-recoll-format (title url mtype)
(let* ((u (replace-regexp-in-string "/home/jao/" "" url))
(u (replace-regexp-in-string "\\(doc\\|org/doc\\|var/mail\\)/" "" u)))
(format "%s (%s, %s)"
title
(propertize u 'face 'jao-themes-f00)
(propertize mtype 'face 'jao-themes-f01))))
(use-package consult-recoll
:init (setq consult-recoll-open-fns
'(("application/pdf" . jao-open-doc)
("message/rfc822" . jao-org-links-open-mail))
consult-recoll-format-candidate #'jao-recoll-format)
:bind (("C-c R" . #'consult-recoll)))
#+end_src
*** dh-diff hunks
#+begin_src emacs-lisp
(defun jao-consult--diff-lines (&optional backward)
(let ((candidates)
(width (length (number-to-string
(line-number-at-pos (point-max)
consult-line-numbers-widen)))))
(save-excursion
(while (ignore-errors (diff-hl-next-hunk backward))
(let* ((str (buffer-substring (line-beginning-position)
(line-end-position)))
(no (line-number-at-pos (point)))
(no (consult--line-number-prefix (point-marker) no width)))
(push (concat no str) candidates))))
(if backward candidates (nreverse candidates))))
(defun jao-consult-hunks ()
(interactive)
(let ((candidates (append (jao-consult--diff-lines)
(jao-consult--diff-lines t))))
(unless candidates (error "No changes!"))
(consult--jump
(consult--read candidates
:prompt "Go to hunk: "
:category 'consult--encode-location
:sort nil
:require-match t
:lookup #'consult--line-match
:state (consult--jump-state)))))
(with-eval-after-load "consult"
(add-to-list 'consult-config '(jao-consult-hunks :preview-key any))
(global-set-key (kbd "C-x v c") #'jao-consult-hunks))
#+end_src
* embark
*** packages
#+begin_src emacs-lisp
(use-package embark
:ensure t
:custom ((embark-quit-after-action nil)
(prefix-help-command #'describe-prefix-bindings
;; #'embark-prefix-help-command
))
:bind (("C-;" . embark-act)
("C-'" . embark-default-action)
(:map minibuffer-local-map
(("C-'" . embark-default-action)
("C-," . embark-become)
("C-o" . embark-export)))))
(use-package embark-consult
:ensure t
:after (embark consult))
(with-eval-after-load 'consult
(with-eval-after-load 'embark
(require 'embark-consult)))
(require 'embark)
#+end_src
*** embark action indicator
#+begin_src emacs-lisp
(defvar jao-embark--actions-buffer "*Embark Actions*")
(defvar jao-embark--default-display
`((,(regexp-quote jao-embark--actions-buffer)
(display-buffer-at-bottom)
(window-parameters (mode-line-format . none))
(window-height . fit-window-to-buffer))))
(setq jao-embark--excluded
'(embark-collect-snapshot embark-collect-live embark-export
embark-keymap-help embark-become embark-isearch nil))
(defun jao-embark--key-str (k)
(if (numberp k) (single-key-description k) (key-description k)))
(defun jao-embark--bind-desc (descs x prefix)
(let ((k (car x)) (c (cdr x)))
(cond ((keymapp c)
(let ((cds (jao-embark--keymap-descs c (jao-embark--key-str k))))
(cons (max (or (car cds) 0) (or (car descs) 0))
(cons (max (or (cadr cds) 0) (or (cadr descs) 0))
(append (cddr descs) (cddr cds))))))
((memq c jao-embark--excluded) descs)
((symbolp c)
(let* ((desc (jao-embark--key-str k))
(desc (format "%s%s" (or prefix "") desc))
(doc (car (split-string
(or (ignore-errors (documentation c)) "")
"\n")))
(fun (symbol-name c)))
(cons (max (length desc) (car descs))
(cons (max (length fun) (cadr descs))
(cons (list desc fun doc) (cddr descs))))))
(t (message "i've skipped %S" x) descs))))
(defun jao-embark--keymap-descs (k prefix)
(seq-reduce `(lambda (descs x) (jao-embark--bind-desc descs x ,prefix))
(cdr (keymap-canonicalize k)) '(0 0)))
(defun jao-embark--dstr (d)
(let ((s (cadr d))) (if (string-prefix-p "embark" s) "" s)))
(defun jao-embark--show-keymap (keymap &optional target)
(with-current-buffer (get-buffer-create jao-embark--actions-buffer)
(read-only-mode -1)
(setq-local cursor-type nil)
(delete-region (point-min) (point-max))
(let* ((descs (jao-embark--keymap-descs keymap ""))
(fmt (format "%%-%ds %%-%ds %%s\n" (cadr descs) (car descs))))
(seq-each (lambda (desc)
(insert (format fmt
(propertize (cadr desc) 'face 'jao-themes-f00)
(propertize (car desc) 'face 'embark-keybinding)
(propertize (caddr desc) 'face 'italic))))
(seq-sort-by 'jao-embark--dstr 'string-greaterp (cddr descs))))
(if target (insert (format "\nAction for '%s'" target)) (delete-char -1))
(read-only-mode 1)
(let ((display-buffer-alist
(append display-buffer-alist jao-embark--default-display)))
(pop-to-buffer (current-buffer) nil t))
(lambda ()
(embark-kill-buffer-and-window jao-embark--actions-buffer)
(when (or (bound-and-true-p selectrum-is-active)
(bound-and-true-p current-minibuffer-command))
(select-window (minibuffer-window))))))
(setq embark-action-indicator #'jao-embark--show-keymap
embark-become-indicator embark-action-indicator)
#+end_src
*** org targets
#+begin_src emacs-lisp
(declare-function org-link-any-re "ol")
(declare-function org-open-link-from-string "ol")
(declare-function org-in-regexp "org-macs")
(defun jao-embark-targets--org-link ()
(when (derived-mode-p 'org-mode)
(when (org-in-regexp org-link-any-re)
(let ((lnk (match-string-no-properties 2)))
(if (string-match-p "https?://.+" (or lnk ""))
(cons 'url lnk)
(cons 'org-link (match-string-no-properties 0)))))))
(embark-define-keymap jao-embark-targets-org-link-map
"Actions for org links"
((kbd "RET") org-open-link-from-string))
(add-to-list 'embark-target-finders #'jao-embark-targets--org-link)
(add-to-list 'embark-keymap-alist '(org-link . jao-embark-targets-org-link-map))
#+end_src
*** url targets
#+begin_src emacs-lisp
(declare-function w3m-anchor "w3m")
(defun jao-embark-targets--w3m-anchor ()
(when (not (region-active-p))
(when-let ((url (or (and (derived-mode-p 'w3m-mode)
(or (w3m-anchor) w3m-current-url))
(and (derived-mode-p 'eww-mode)
(or (thing-at-point 'url) (eww-current-url)))
(jao-url-around-point))))
(when (string-match-p "^https?.*" url)
(cons 'url url)))))
(add-to-list 'embark-target-finders #'jao-embark-targets--w3m-anchor)
(defun jao-embark-url (url)
"Browse URL, externally if we're already in emacs-w3m"
(if (derived-mode-p 'w3m-mode 'eww-mode)
(jao-browse-with-external-browser url)
(browse-url url)))
(define-key embark-url-map (kbd "RET") #'jao-embark-url)
(define-key embark-url-map (kbd "e") #'jao-eww-browse-url)
(define-key embark-url-map (kbd "f") #'browse-url-firefox)
(define-key embark-url-map (kbd "m") 'jao-browse-with-external-browser)
#+end_src
*** video url targets
#+begin_src emacs-lisp
(defvar jao-embark-targets-video-sites
'("youtu.be" "youtube.com" "blip.tv" "vimeo.com" "infoq.com"))
(defun jao-embark--video-url-rx (&optional sites)
(format "^https?://\\(?:www\\.\\)?%s/.+"
(regexp-opt (or sites jao-embark-targets-video-sites) t)))
(defvar jao-embark-targets-video-url-rx (jao-embark--video-url-rx)
"A regular expression matching URLs that point to video streams")
(defun jao-embark-targets--refine-url (url)
(if (string-match-p jao-embark-targets-video-url-rx url)
(cons 'video-url url)
(cons 'url url)))
(defun jao-embark-targets--play-video (player url)
(interactive "sURL: ")
(let ((cmd (format "%s %s" player (shell-quote-argument url))))
(start-process-shell-command player nil cmd)))
(defun jao-embark-targets-mpv (&optional url)
"Play video stream with mpv"
(interactive "sURL: ")
(jao-embark-targets--play-video "mpv" url))
(defun jao-embark-targets-vlc (&optional url)
"Play video stream with vlc"
(interactive "sURL: ")
(jao-embark-targets--play-video "vlc" url))
(embark-define-keymap jao-embark-targets-video-url-map
"Actions on URLs pointing to remote video streams."
:parent embark-url-map
("RET" jao-embark-targets-mpv)
("v" jao-embark-targets-vlc))
(add-to-list 'embark-transformer-alist '(url . jao-embark-targets--refine-url))
(add-to-list 'embark-keymap-alist '(video-url . jao-embark-targets-video-url-map))
#+end_src
*** spotify
#+begin_src emacs-lisp
(with-eval-after-load "consult-spotify"
(embark-define-keymap spotify-item-keymap
"Actions for Spotify search results"
("y" espotify-yank-candidate-url)
("a" espotify-play-candidate-album)
("h" espotify-show-candidate-info))
(add-to-list 'embark-keymap-alist
'(spotify-search-item . spotify-item-keymap)))
#+end_src
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