;;; oni-eshell.el --- Eshell configuration -*- lexical-binding: t; -*- ;; Copyright (C) 2019 Tom Willemse ;; Author: Tom Willemse ;; Keywords: local ;; Version: 2023.0414.233822 ;; Package-Requires: (eshell-fringe-status esh-autosuggest xterm-color eshell-syntax-highlighting) ;; This program is free software; you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation, either version 3 of the License, or ;; (at your option) any later version. ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with this program. If not, see . ;;; Commentary: ;; Eshell configuration. ;;; Code: (require 'eshell) (require 'em-dirs) (require 'em-prompt) (require 'esh-autosuggest) (require 'xterm-color) (defun oni-eshell--C-d () "Call `delete-char' or close the buffer if it fails." (interactive) (condition-case err (call-interactively #'delete-char) (error (if (and (eq (car err) 'end-of-buffer) (looking-back eshell-prompt-regexp nil)) (kill-buffer) (signal (car err) (cdr err)))))) (defun oni-eshell--enable-truncating-buffers () "Add `eshell-truncate-buffer' to `eshell-output-filter-functions'." (add-to-list 'eshell-output-filter-functions 'eshell-truncate-buffer)) (defun oni-eshell--enable-xterm-filter () "Add ‘xterm-color-filter’ to ‘eshell-preoutput-filter-functions’." (add-to-list 'eshell-preoutput-filter-functions 'xterm-color-filter)) (defun oni-eshell--disable-ansi-color-handling () "Remove ‘eshell-handle-ansi-color’ from ‘eshell-output-filter-functions’." (setq eshell-output-filter-functions (remove 'eshell-handle-ansi-color eshell-output-filter-functions))) (defun oni-eshell--expand-keymap () "Set `C-d' to quit eshell if used at end of prompt." (define-key eshell-mode-map (kbd "C-d") #'oni-eshell--C-d) (define-key eshell-mode-map (kbd "C-c b") #'oni-eshell-goto-buffer-directory)) (defun oni-eshell--set-xterm-variables () "Set ‘xterm-color-preserve-properties’ to t." (setq xterm-color-preserve-properties t)) (defun oni-eshell-fix-esh-autosuggest-active-keymap () "Set ‘company-posframe-active-map’ to ‘esh-autosuggest-active-map’." (setq-local company-posframe-active-map esh-autosuggest-active-map)) (defun oni-eshell-goto-buffer-directory (buffer-name) "Change the current directory to the given BUFFER-NAME’s directory." (interactive (list (read-buffer "Switch to buffer’s directory: " nil t (lambda (buf) (let ((b (if (consp buf) (cdr buf) (get-buffer buf)))) (buffer-file-name b)))))) (eshell/cd (file-name-directory (buffer-file-name (get-buffer buffer-name)))) (eshell-reset)) (defun oni-eshell-disable-beacon-on-scroll () "Disable ‘beacon-blink-when-window-scrolls’ in the current buffer." (setq-local beacon-blink-when-window-scrolls nil)) (defun oni-eshell-change-font () "Remap the default font to the one I use for terminals." (face-remap-add-relative 'default :family "Classic Console Neue")) (defun oni-eshell-set-page-delimiter () "Change the page delimiter so that it matches the prompt for easy navigation." (setq-local page-delimiter eshell-prompt-regexp)) (add-hook 'eshell-before-prompt-hook #'oni-eshell--set-xterm-variables) (add-hook 'eshell-first-time-mode-hook #'oni-eshell--expand-keymap) (add-hook 'eshell-load-hook #'oni-eshell--disable-ansi-color-handling) (add-hook 'eshell-load-hook #'oni-eshell--enable-truncating-buffers) (add-hook 'eshell-load-hook #'oni-eshell--enable-xterm-filter) (add-hook 'eshell-mode-hook #'oni-eshell-change-font) (add-hook 'eshell-mode-hook #'oni-eshell-disable-beacon-on-scroll) (add-hook 'eshell-mode-hook #'oni-eshell-set-page-delimiter) (add-hook 'eshell-mode-hook 'esh-autosuggest-mode) (add-hook 'eshell-mode-hook 'eshell-syntax-highlighting-mode) (add-hook 'eshell-mode-hook 'goto-address-mode) (add-hook 'esh-autosuggest-mode-hook #'oni-eshell-fix-esh-autosuggest-active-keymap) (when (display-graphic-p) (add-hook 'eshell-mode-hook 'eshell-fringe-status-mode)) (setenv "TERM" "xterm-256color") (add-to-list 'display-buffer-alist '("\\`\\*eshell" display-buffer-at-bottom (side . bottom) (slot . 0) (window-height . 0.33))) ;;; Eshell prompt (defun oni-eshell-shortest-unique-directory (current-path directory) "Find the shortest unique substring of DIRECTORY. DIRECTORY should be a directory that exists within CURRENT-PATH." (catch 'result (dotimes (i (length directory)) (let* ((current-directory (substring directory 0 (1+ i))) (dir-rx (rx string-start (literal current-directory) (zero-or-more any))) (matches (directory-files current-path nil dir-rx))) (when (= (length matches) 1) (throw 'result current-directory)))))) (defun oni-eshell-shorten-directory (directory) "Shorten DIRECTORY to the shortest unique names of each directory." (let ((current-path "/") (current-short-path "/") (home (concat (getenv "HOME") "/")) (components (string-split (expand-file-name directory) "/" t))) (dolist (dir components current-short-path) (let* ((shortened (propertize (oni-eshell-shortest-unique-directory current-path dir) 'help-echo dir)) (new-path (format "%s%s/" current-path dir)) (new-short-path (if (string= new-path home) "~/" (format "%s%s/" current-short-path shortened)))) (setq current-path new-path current-short-path new-short-path))))) (defun oni-eshell-show-perforce-info-p () "Predicate to indicate whether or not powershell info should be shown." (locate-dominating-file "." ".p4config")) (defun oni-eshell-perforce-workspace () "Function returning the current Perforce workspace." (car (map-elt (mapcar (lambda (str) (split-string str ": ")) (split-string (shell-command-to-string "p4 info -s") "\n")) "Client name"))) (defun oni-eshell-perforce-root () "Function returning the root directory of the current Perforce workspace." (string-replace "\\" "/" (car (map-elt (mapcar (lambda (str) (split-string str ": ")) (split-string (shell-command-to-string "p4 info") "\n")) "Client root")))) (defun oni-eshell-perforce-stream () "Function returning the current Perforce stream." (string-trim-right (shell-command-to-string "p4 switch"))) (defun oni-eshell-prompt-function () "Construct a prompt string for Eshell." (let* ((perforcep (oni-eshell-show-perforce-info-p)) (pwd (eshell/pwd)) (dir (if perforcep (concat (propertize (oni-eshell-perforce-workspace) 'face '((foreground-color . "#ca3cad90828e"))) ":" (let ((relative-path (string-remove-prefix (oni-eshell-perforce-root) pwd))) (if (string= relative-path "") "/" relative-path))) (oni-eshell-shorten-directory pwd))) (stream (if perforcep (concat " (" (propertize (oni-eshell-perforce-stream) 'face '((foreground-color . "#90e4ca3c828e"))) ")") ""))) (concat dir stream (if (= (user-uid) 0) " # " " $ ")))) (setq eshell-prompt-function #'oni-eshell-prompt-function) (provide 'oni-eshell) ;;; oni-eshell.el ends here