doomemacs/modules/completion/ivy/autoload/ivy.el

;;; completion/ivy/autoload/ivy.el -*- lexical-binding: t; -*-

;; Show more information in ivy-switch-buffer; and only display
;; workgroup-relevant buffers.
(defun +ivy--get-buffers (&optional buffer-list)
  (when-let (buffer-list (delq (current-buffer) (or buffer-list (doom-buffer-list))))
    (let* ((min-name
            (+ 5 (cl-loop for buf in buffer-list
                          maximize (length (buffer-name buf)))))
           (min-mode
            (+ 5 (cl-loop for buf in buffer-list
                          maximize (length (symbol-name (buffer-local-value 'major-mode buf)))))))
      (cl-loop
       with project-root = (doom-project-root)
       for buf in buffer-list
       collect
       (cl-destructuring-bind (type mode path)
           (with-current-buffer buf
             (list (concat
                    (let ((buffer-name (buffer-name buf)))
                      (propertize
                       buffer-name
                       'face (cond ((string-match-p "^ ?\\*" buffer-name)
                                    'font-lock-comment-face)
                                   ((not (string= project-root (doom-project-root)))
                                    'warning)
                                   (buffer-read-only
                                    'error))))
                    (when (and buffer-file-name (buffer-modified-p))
                      (propertize "[+]" 'face 'doom-modeline-buffer-modified)))
                   (propertize (symbol-name major-mode) 'face 'font-lock-constant-face)
                   (when buffer-file-name
                     (abbreviate-file-name
                      (file-name-directory buffer-file-name)))))
         (format (format "%%-%ds %%-%ds %%s" min-name min-mode)
                 type mode (or path "")))))))

(defun +ivy--select-buffer-action (buffer)
  (ivy--switch-buffer-action
   (string-remove-suffix
    "[+]"
    (substring buffer 0 (string-match-p (regexp-quote "   ") buffer)))))

(defun +ivy--select-buffer-other-window-action (buffer)
  (ivy--switch-buffer-other-window-action
   (string-remove-suffix
    "[+]"
    (substring buffer 0 (string-match-p (regexp-quote "   ") buffer)))))

;;;###autoload
(defun +ivy/switch-workspace-buffer (&optional other-window-p)
  "Switch to an open buffer in the current workspace.

If OTHER-WINDOW-P (universal arg), then open target in other window."
  (interactive "P")
  (+ivy/switch-buffer other-window-p t))

;;;###autoload
(defun +ivy/switch-buffer (&optional other-window-p workspace-only-p)
  "Switch to an open buffer in the global buffer list.

If OTHER-WINDOW-P (universal arg), then open target in other window.
If WORKSPACE-ONLY-P (universal arg), limit to buffers in the current workspace."
  (interactive "P")
  (ivy-read (format "%s buffers: " (if workspace-only-p "Workspace" "Global"))
            (+ivy--get-buffers (unless workspace-only-p (buffer-list)))
            :action (if other-window-p
                        #'+ivy--select-buffer-other-window-action
                      #'+ivy--select-buffer-action)
            :matcher #'ivy--switch-buffer-matcher
            :keymap ivy-switch-buffer-map
            :caller #'+ivy/switch-workspace-buffer))

(defun +ivy--tasks-candidates (tasks)
  "Generate a list of task tags (specified by `+ivy-task-tags') for
`+ivy/tasks'."
  (let* ((max-type-width
          (cl-loop for task in +ivy-task-tags maximize (length (car task))))
         (max-desc-width
          (cl-loop for task in tasks maximize (length (cl-cdadr task))))
         (max-width (max (- (frame-width) (1+ max-type-width) max-desc-width)
                         25)))
    (cl-loop
     with fmt = (format "%%-%ds %%-%ds%%s%%s:%%s" max-type-width max-width)
     for alist in tasks
     collect
     (let-alist alist
       (format fmt
               (propertize .type 'face (cdr (assoc .type +ivy-task-tags)))
               (substring .desc 0 (min max-desc-width (length .desc)))
               (propertize " | " 'face 'font-lock-comment-face)
               (propertize (abbreviate-file-name .file) 'face 'font-lock-keyword-face)
               (propertize .line 'face 'font-lock-constant-face))))))

(defun +ivy--tasks (target)
  (let* (case-fold-search
         (task-tags (mapcar #'car +ivy-task-tags))
         (cmd
          (format "%s -H -S --no-heading -- %s %s"
                  (or (when-let (bin (executable-find "rg"))
                        (concat bin " --line-number"))
                      (when-let (bin (executable-find "ag"))
                        (concat bin " --numbers"))
                      (error "ripgrep & the_silver_searcher are unavailable"))
                  (shell-quote-argument
                   (concat "\\s("
                           (string-join task-tags "|")
                           ")([\\s:]|\\([^)]+\\):?)"))
                  target)))
    (save-match-data
      (cl-loop with out = (shell-command-to-string cmd)
               for x in (and out (split-string out "\n" t))
               when (string-match
                     (concat "^\\([^:]+\\):\\([0-9]+\\):.+\\("
                             (string-join task-tags "\\|")
                             "\\):?\\s-*\\(.+\\)")
                     x)
               collect `((type . ,(match-string 3 x))
                         (desc . ,(match-string 4 x))
                         (file . ,(match-string 1 x))
                         (line . ,(match-string 2 x)))))))

(defun +ivy--tasks-open-action (x)
  "Jump to the file and line of the current task."
  (let ((location (cadr (split-string x " | ")))
        (type (car (split-string x " "))))
    (cl-destructuring-bind (file line) (split-string location ":")
      (with-ivy-window
        (find-file (expand-file-name file (doom-project-root)))
        (goto-char (point-min))
        (forward-line (1- (string-to-number line)))
        (search-forward type (line-end-position) t)
        (backward-char (length type))
        (recenter)))))

;;;###autoload
(defun +ivy/tasks (&optional arg)
  "Search through all TODO/FIXME tags in the current project. If ARG, only
search current file. See `+ivy-task-tags' to customize what this searches for."
  (interactive "P")
  (ivy-read (format "Tasks (%s): "
                    (if arg
                        (concat "in: " (file-relative-name buffer-file-name))
                      "project"))
            (+ivy--tasks-candidates
             (+ivy--tasks (if arg buffer-file-name (doom-project-root))))
            :action #'+ivy--tasks-open-action
            :caller '+ivy/tasks))

;;;###autoload
(defun +ivy*counsel-ag-function (string base-cmd extra-ag-args)
  "Advice to 1) get rid of the character limit from `counsel-ag-function' and 2)
disable ivy's over-zealous parentheses quoting behavior (if i want literal
parentheses, I'll escape them myself).

NOTE This may need to be updated frequently, to meet changes upstream (in
counsel-rg)."
  (when (null extra-ag-args)
    (setq extra-ag-args ""))
  (if (< (length string) 1)  ;; #1
      (counsel-more-chars 1)
    (let ((default-directory counsel--git-grep-dir)
          (regex (counsel-unquote-regex-parens
                  (setq ivy--old-re
                        (ivy--regex
                         (counsel-unquote-regex-parens string)))))) ;; #2
      (let* ((args-end (string-match " -- " extra-ag-args))
             (file (if args-end
                       (substring-no-properties extra-ag-args (+ args-end 3))
                     ""))
             (extra-ag-args (if args-end
                                (substring-no-properties extra-ag-args 0 args-end)
                              extra-ag-args))
             (ag-cmd (format base-cmd
                             (concat extra-ag-args
                                     " -- "
                                     (shell-quote-argument regex)
                                     file))))
        (if (file-remote-p default-directory)
            (split-string (shell-command-to-string ag-cmd) "\n" t)
          (counsel--async-command ag-cmd)
          nil)))))

;;;###autoload
(defun +ivy/wgrep-occur ()
  "Invoke the search+replace wgrep buffer on the current ag/rg search results."
  (interactive)
  (unless (window-minibuffer-p)
    (user-error "No completion session is active"))
  (require 'wgrep)
  (let* ((caller (ivy-state-caller ivy-last))
         (occur-fn (plist-get ivy--occurs-list caller))
         (buffer
          (generate-new-buffer
           (format "*ivy-occur%s \"%s\"*"
                   (if caller (concat " " (prin1-to-string caller)) "")
                   ivy-text))))
    (with-current-buffer buffer
      (let ((inhibit-read-only t))
        (erase-buffer)
        (funcall occur-fn))
      (setf (ivy-state-text ivy-last) ivy-text)
      (setq ivy-occur-last ivy-last)
      (setq-local ivy--directory ivy--directory))
    (ivy-exit-with-action
     `(lambda (_)
        (pop-to-buffer ,buffer)
        (ivy-wgrep-change-to-wgrep-mode)))))

;;;###autoload
(defun +ivy-yas-prompt (prompt choices &optional display-fn)
  (yas-completing-prompt prompt choices display-fn #'ivy-completing-read))

;;;###autoload
(defun +ivy-git-grep-other-window-action (x)
  "Opens the current candidate in another window."
  (when (string-match "\\`\\(.*?\\):\\([0-9]+\\):\\(.*\\)\\'" x)
    (select-window
     (with-ivy-window
       (let ((file-name   (match-string-no-properties 1 x))
             (line-number (match-string-no-properties 2 x)))
         (find-file-other-window (expand-file-name file-name counsel--git-grep-dir))
         (goto-char (point-min))
         (forward-line (1- (string-to-number line-number)))
         (re-search-forward (ivy--regex ivy-text t) (line-end-position) t)
         (run-hooks 'counsel-grep-post-action-hook)
         (selected-window))))))

;;;###autoload
(defun +ivy-quit-and-resume ()
  "Close the current popup window and resume ivy."
  (interactive)
  (when (doom-popup-p)
    (doom/popup-close))
  (ivy-resume))