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;;; eshell-vterm-config --- Settings for the Emacs Shell -*- lexical-binding: t; coding: utf-8; -*-
;; author Craig Jennings <c@cjennings.net>
;;; Commentary:
;; ESHELL
;; - Eshell is useful as a REPL
;; - Redirect to the kill ring : ls > /dev/kill
;; - Redirect to the clioboard : ls > /dev/clip
;; - Redirect to a buffer : ls > #<ls-output>
;; - Use elisp functions : write your own "detox" command in elisp
;; : then use it in eshell
;; - cd to remote directories : cd /sshx:c@cjennings.net:/home/cjennings
;; : and take all the elisp functionality remotely
;; : including Dired or Magit on a remote server
;; VTERM
;; At the moment, vterm behaves like a real terminal. For most keys, vterm will
;; just send them to the process that is currently running. So, C-a may be
;; beginning-of-the-line in a shell, or the prefix key in a screen session.
;; If you enter vterm-copy-mode C-c C-t or <pause>, the buffer will become a normal
;; Emacs buffer. You can then use your navigation keys, select rectangles, etc.
;; When you press RET, the region will be copied and you'll be back in a working
;; terminal session.
;; ANSI-TERM & TERM
;; I haven't yet found a need for term or ansi-term in my workflows, so I leave
;; them with their default configurations.
;;; Code:
(require 'system-utils)
;; ------------------------------ Eshell -----------------------------
;; the Emacs shell.
(use-package eshell
:ensure nil ;; built-in
:commands (eshell)
:config
(setq eshell-banner-message "")
(setq eshell-scroll-to-bottom-on-input 'all)
(setq eshell-error-if-no-glob t)
(setq eshell-hist-ignoredups t)
(setq eshell-save-history-on-exit t)
(setq eshell-prefer-lisp-functions nil)
(setq eshell-destroy-buffer-when-process-dies t)
(setq eshell-prompt-function
(lambda ()
(concat
(propertize (format-time-string "[%d-%m-%y %T]") 'face '(:foreground "gray"))
" "
(propertize (user-login-name) 'face '(:foreground "gray"))
" "
(propertize (system-name) 'face '(:foreground "gray"))
":"
(propertize (abbreviate-file-name (eshell/pwd)) 'face '(:foreground "gray"))
"\n"
(propertize "%" 'face '(:foreground "white"))
" ")))
(add-hook
'eshell-mode-hook
(lambda ()
(setq pcomplete-cycle-completions nil)))
(setq eshell-cmpl-cycle-completions nil)
(add-to-list 'eshell-modules-list 'eshell-tramp)
(add-hook 'eshell-hist-mode-hook
(lambda ()
(keymap-set eshell-hist-mode-map "<up>" #'previous-line)
(keymap-set eshell-hist-mode-map "<down>" #'next-line)))
(add-hook 'eshell-mode-hook
(lambda ()
(add-to-list 'eshell-visual-commands '("lf" "ranger" "tail" "htop" "gotop" "mc" "ncdu" "top"))
(add-to-list 'eshell-visual-subcommands '("git" "log" "diff" "show"))
(add-to-list 'eshell-visual-options '("git" "--help" "--paginate"))
;; aliases
(eshell/alias "clear" "clear 1") ;; leaves prompt at the top of the window
(eshell/alias "e" "find-file $1")
(eshell/alias "em" "find-file $1")
(eshell/alias "emacs" "find-file $1")
(eshell/alias "open" "cj/xdg-open $1")
(eshell/alias "gocj" "cd /sshx:cjennings@cjennings.net:/var/cjennings/")
(eshell/alias "gosb" "cd /sshx:cjennings@wolf.usbx.me:/home/cjennings/")
(eshell/alias "gowolf" "cd /sshx:cjennings@wolf.usbx.me:/home/cjennings/")
(eshell/alias "v" "eshell-exec-visual $*")
(eshell/alias "ff" "find-file-other-window $1")
(eshell/alias "f" "find-using-dired $1")
(eshell/alias "r" "ranger")
(eshell/alias "ll" "ls -laF"))))
(defun eshell/find-file-other-window (&rest files)
"Open FILE(s) in other window from eshell."
(if (= 1 (length files))
;; Single file - just use it directly
(find-file-other-window (car files))
;; Multiple files - open each in other window
(dolist (file files)
(find-file-other-window file))))
(defun eshell/find-file (&rest files)
"Open FILE(s) from eshell."
(if (= 1 (length files))
;; Single file
(find-file (car files))
;; Multiple files
(dolist (file files)
(find-file file))))
(defun eshell/find-using-dired (file-pattern)
"Find a file FILE-PATTERN' using 'find-name-dired'."
(let ((escaped-pattern (regexp-quote file-pattern)))
(find-name-dired . escaped-pattern)))
(defun cj/eshell-delete-window-on-exit ()
"Close the eshell window when exiting."
(when (not (one-window-p))
(delete-window)))
(advice-add 'eshell-life-is-too-much :after 'cj/eshell-delete-window-on-exit)
(use-package eshell-toggle
:after eshell
:custom
(eshell-toggle-size-fraction 2)
(eshell-toggle-run-command nil)
(eshell-toggle-init-function #'eshell-toggle-init-eshell)
:bind
("C-<f12>" . eshell-toggle))
(use-package xterm-color
:after eshell
:hook
(eshell-before-prompt-hook . (lambda ()
(setq xterm-color-preserve-properties t)))
:config
(setenv "TERM" "xterm-256color"))
(use-package eshell-syntax-highlighting
:after esh-mode
:config
(eshell-syntax-highlighting-global-mode +1))
(use-package eshell-up
:after eshell
:config
(defalias 'eshell/up 'eshell-up)
(defalias 'eshell/up-peek 'eshell-up-peek))
;; Enhance history searching
(defun cj/eshell-history-search ()
"Search eshell history with completion."
(interactive)
(insert
(completing-read "Eshell history: "
(delete-dups
(ring-elements eshell-history-ring)))))
(add-hook 'eshell-mode-hook
(lambda ()
(keymap-set eshell-mode-map "C-r" #'cj/eshell-history-search)))
;; Better completion for eshell
(use-package pcmpl-args
:after eshell)
;; Company mode integration for eshell
(use-package company-shell
:after (eshell company)
:config
(add-to-list 'company-backends 'company-shell)
(add-hook 'eshell-mode-hook
(lambda ()
(setq-local company-minimum-prefix-length 2)
(setq-local company-idle-delay 2)
(company-mode 1))))
;; ------------------------------ Vterm ------------------------------
;; faster and highly dependable, but not extensible
(use-package vterm
:defer .5
:commands (vterm vterm-other-window)
:init
(setq vterm-always-compile-module t)
(defun cj/turn-off-chrome-for-vterm ()
(hl-line-mode -1)
(display-line-numbers-mode -1))
(defun cj/vterm-launch-tmux ()
"Automatically launch tmux in vterm if not already in a tmux session."
(let ((proc (get-buffer-process (current-buffer))))
(when (and proc
(not (getenv "TMUX"))) ; Check if not already in tmux
(vterm-send-string "tmux\n"))))
:hook
((vterm-mode . cj/turn-off-chrome-for-vterm)
(vterm-mode . cj/vterm-launch-tmux))
:bind
(:map vterm-mode-map
("<f12>" . nil)
("C-y" . vterm-yank)
("C-p" . vtermf-copy-mode)
("<pause>" . vterm-copy-mode))
:custom
(vterm-kill-buffer-on-exit t)
(vterm-max-scrollback 100000)
:config
(setq vterm-timer-delay nil))
(use-package vterm-toggle
:defer .5
:bind
("<f12>" . vterm-toggle)
:config
(setq vterm-toggle-fullscreen-p nil)
(add-to-list 'display-buffer-alist
'((lambda (buffer-or-name _)
(let ((buffer (get-buffer buffer-or-name)))
(with-current-buffer buffer
(or (equal major-mode 'vterm-mode)
(string-prefix-p vterm-buffer-name (buffer-name buffer))))))
(display-buffer-reuse-window display-buffer-at-bottom)
(dedicated . t) ;dedicated is supported in Emacs 27+
(reusable-frames . visible)
(window-height . 0.7))))
(provide 'eshell-vterm-config)
;;; eshell-vterm-config.el ends here.
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