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(require 'cl-lib)
(require 'eshell)
(defun bard/eshell-complete-recent-dir (&optional args)
"Switch to a recent `eshell` directory using completion."
(interactive "P")
(let* ((dirs (ring-elements eshell-last-dir-ring))
(dir (vertico--exhibit ()
(completing-read "Switch to recent dir: " dirs nil t))))
(insert-dir)
(eshell-send-input)
(when arg
(dired-dir))))
(defun bard/eshell-find-file-at-point ()
"Run `find-file` to find file"
(interactive)
(let ((file (ffap-file-at-point)))
(if file
(find-file file)
(user-error "No file at point"))))
;; (defun bard/eshell-narrow-output-highlight-regexp ()
;; (interactive)
;; (let ((regexp (read-regexp "Regexp to highlight: ")))
;; (narrow-to-region (eshell-beginning-of-output)
;; (eshell-end-of-output))
;; (goto-char (point-min))
;; (highlight-regexp regexp 'hi-yellow)))
(defun select-or-create (arg)
"Commentary ARG."
(if (string= arg "New eshell")
(eshell t)
(switch-to-buffer arg)))
(defun eshell-switcher (&optional arg)
"Commentary ARG."
(interactive)
(let* (
(buffers (cl-remove-if-not (lambda (n) (eq (buffer-local-value 'major-mode n) 'eshell-mode)) (buffer-list)) )
(names (mapcar (lambda (n) (buffer-name n)) buffers))
(num-buffers (length buffers) )
(in-eshellp (eq major-mode 'eshell-mode)))
(cond ((eq num-buffers 0) (eshell (or arg t)))
((not in-eshellp) (switch-to-buffer (car buffers)))
(t (select-or-create (completing-read "Select Shell:" (cons "New eshell" names)))))))
(global-set-key (kbd "C-z") nil)
(define-key global-map (kbd "C-z e") #'eshell-switcher)
(with-eval-after-load "esh-mode"
(define-key eshell-mode-map (kbd "C-c f") #'bard/eshell-find-file-at-point)
(define-key eshell-mode-map (kbd "C-c h") #'bard/eshell-narrow-ouput-highlight-regexp)
(define-key eshell-mode-map (kbd "C-c d") #'bard/eshell-complete-recent-dir)
(define-key eshell-mode-map (kbd "M-k") #'eshell-kill-input))
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