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dirvish-extras.el
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dirvish-extras.el
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;;; dirvish-extras.el --- Extra utilities and transient prefixes for dirvish -*- lexical-binding: t -*-
;; Copyright (C) 2021-2022 Alex Lu
;; Author : Alex Lu <https://github.com/alexluigit>
;; Version: 2.0.53
;; Keywords: files, convenience
;; Homepage: https://github.com/alexluigit/dirvish
;; SPDX-License-Identifier: GPL-3.0-or-later
;;; Commentary:
;; dirvish-extras.el contains the TRAMP integration for dirvish, it is only
;; loaded after a TRAMP connection is initiated. Besides, it provides some
;; utilities and transient prefixes. This is an optimization to avoid having to
;; load functions that are rarely used during start-up.
;;
;; Commands included:
;; - `dirvish-find-file-true-path'
;; - `dirvish-copy-file-name' (autoload)
;; - `dirvish-copy-file-path' (autoload)
;; - `dirvish-copy-file-directory'
;; - `dirvish-total-file-size' (autoload)
;; - `dirvish-layout-toggle' (autoload)
;; - `dirvish-layout-switch' (autoload)
;; - `dirvish-rename-space-to-underscore'
;;
;; Transient prefixes included (all autoloaded):
;; - `dirvish-file-info-menu'
;; - `dirvish-renaming-menu'
;; - `dirvish-subdir-menu'
;; - `dirvish-chxxx-menu'
;; - `dirvish-mark-menu'
;; - `dirvish-epa-dired-menu'
;; - `dirvish-setup-menu'
;;; Code:
(require 'dirvish)
(require 'tramp)
(defcustom dirvish-layout-recipes
'((0 0 0.4) ; | CURRENT | preview
(0 0 0.8) ; | current | PREVIEW
(1 0.08 0.8) ; parent | current | PREVIEW
(1 0.11 0.55)) ; parent | current | preview
"Layout RECIPEs for `dirvish-layout-switch' command.
RECIPE has the same form as `dirvish-default-layout'."
:group 'dirvish
:type '(repeat (list (integer :tag "number of parent windows")
(float :tag "max width of parent windows")
(float :tag "width of preview window"))))
(defclass dirvish-attribute (transient-infix)
((variable :initarg :variable))
"Class for dirvish attributes.")
(cl-defmethod transient-format-description ((obj dirvish-attribute))
"Format description for DIRVISH-ATTRIBUTE instance OBJ."
(format "%s%s" (oref obj description)
(propertize " " 'display '(space :align-to (- right 5)))))
(cl-defmethod transient-format-value ((obj dirvish-attribute))
"Format value for DIRVISH-ATTRIBUTE instance OBJ."
(let* ((val (oref obj value))
(face (if (equal val "+") 'transient-argument 'transient-inactive-value)))
(propertize val 'face face)))
(cl-defmethod transient-init-value ((obj dirvish-attribute))
"Initialize value for DIRVISH-ATTRIBUTE instance OBJ."
(let ((sym (oref obj variable)))
(oset obj value (if (memq sym dirvish-attributes) "+" "-"))))
(cl-defmethod transient-infix-read ((obj dirvish-attribute))
"Read value from DIRVISH-ATTRIBUTE instance OBJ."
(oset obj value (if (equal (oref obj value) "+") "-" "+")))
(cl-defmethod transient-infix-set ((obj dirvish-attribute) value)
"Set relevant value in DIRVISH-ATTRIBUTE instance OBJ to VALUE."
(let* ((item (oref obj variable))
(old-val (purecopy dirvish-attributes))
(new-val (if (equal value "+") (cl-pushnew item old-val)
(remq item old-val))))
(mapc #'require '(dirvish-widgets dirvish-vc dirvish-collapse))
(dirvish--render-attrs 'clear)
(setq-local dirvish-attributes new-val)
(setq-local dirvish--working-attrs
(dirvish--attrs-expand
(append '(hl-line symlink-target) new-val)))
(dirvish--render-attrs)))
;;;###autoload (autoload 'dirvish-setup-menu "dirvish-extras" nil t)
(defcustom dirvish-ui-setup-items
'(("s" file-size "File size")
("t" file-time "File modification time")
("c" collapse "Collapse unique nested paths"
(not (dirvish-prop :remote)))
("v" vc-state "Version control state"
(and (display-graphic-p) (dirvish-prop :vc-backend)))
("m" git-msg "Git commit messages"
(and (dirvish-prop :vc-backend) (not (dirvish-prop :remote))))
("1" '(0 nil 0.4) " - | current (60%) | preview (40%)")
("2" '(0 nil 0.8) " - | current (20%) | preview (80%)")
("3" '(1 0.08 0.8) "parent (8%) | current (12%) | preview (80%)")
("4" '(1 0.11 0.55) "parent (11%) | current (33%) | preview (55%)"))
"ITEMs for `dirvish-setup-menu'.
A ITEM is a list consists of (KEY VAR DESC PRED) where KEY is the
keybinding for the item, VAR can be a valid `dirvish-attributes'
or a layout recipe (see `dirvish-layout-recipes'), DESC is the
documentation for the VAR. The optional PRED is passed as the
predicate for that infix."
:group 'dirvish :type 'alist
:set
(lambda (key value)
(set key value)
(cl-loop
with (attrs . layouts) = ()
for (k v desc pred) in value
for name = (and (symbolp v) (intern (format "dirvish-%s-infix" v)))
do (if (not name)
(push (list k (propertize desc 'face 'font-lock-doc-face)
`(lambda () (interactive) (dirvish-layout-switch ,v)))
layouts)
(eval `(transient-define-infix ,name ()
:class 'dirvish-attribute :variable ',v
:description ,desc :if (lambda () ,(if pred `,@pred t))))
(push (list k name) attrs))
finally
(eval
`(transient-define-prefix dirvish-setup-menu ()
"Configure current Dirvish session."
[:description (lambda () (dirvish--format-menu-heading "Setup Dirvish UI"))
["Attributes:" ,@attrs]]
["Switch layouts:"
:if (lambda () (car (dv-layout (dirvish-curr)))) ,@layouts]
["Actions:"
("M-t" "Toggle fullscreen" dirvish-layout-toggle)
("RET" "Apply current settings to future sessions"
(lambda () (interactive)
(setq-default dirvish-attributes dirvish-attributes)
(setq dirvish-default-layout (cdr (dv-layout (dirvish-curr))))
(dirvish--init-session (dirvish-curr))
(revert-buffer)))])))))
(defconst dirvish-tramp-preview-cmd
"head -n 1000 %s 2>/dev/null || ls -Alh --group-directories-first %s 2>/dev/null")
(defvar dirvish-tramp-hosts '())
(defun dirvish-ls-output-parser (entry output)
"Parse ls OUTPUT for ENTRY and store it in `dirvish--attrs-hash'."
(dolist (file (and (> (length output) 2) (cl-subseq output 2 -1)))
(cl-destructuring-bind
(inode priv lnum user group size mon day time &rest path)
(split-string file)
(let* ((sym (cl-position "->" path :test #'equal))
(f-name (string-join (cl-subseq path 0 sym) " "))
(f-mtime (concat mon " " day " " time))
(f-truename (and sym (string-join (cl-subseq path (1+ sym)) " ")))
(f-dirp (string-prefix-p "d" priv))
(f-type (or f-truename f-dirp)))
(puthash (intern (secure-hash 'md5 (expand-file-name f-name entry)))
`(:builtin ,(list f-type lnum user group nil
f-mtime nil size priv nil inode)
:type ,(cons (if f-dirp 'dir 'file) f-truename))
dirvish--attrs-hash)))))
(defun dirvish-noselect-tramp (fn dir flags remote)
"Return the Dired buffer at DIR with listing FLAGS.
Save the REMOTE host to `dirvish-tramp-hosts'.
FN is the original `dired-noselect' closure."
(let* ((saved-flags (cdr (assoc remote dirvish-tramp-hosts #'equal)))
(ftp? (tramp-ftp-file-name-p dir))
(short-flags "-Alh")
(default-directory dir)
(dired-buffers nil)
(buffer (cond (ftp? (funcall fn dir short-flags))
(saved-flags (funcall fn dir saved-flags))
((= (process-file "ls" nil nil nil "--version") 0)
(push (cons remote flags) dirvish-tramp-hosts)
(funcall fn dir flags))
(t (push (cons remote short-flags) dirvish-tramp-hosts)
(funcall fn dir short-flags)))))
(with-current-buffer buffer
(dirvish-prop :tramp (tramp-dissect-file-name dir))
buffer)))
(defun dirvish-tramp--async-p (vec)
"Return t if tramp connection VEC support async commands."
(or (tramp-local-host-p vec) ; localhost
;; the connection support `direct-async-process' and no password needed
(and (stringp (tramp-get-connection-property
vec "first-password-request" nil))
(tramp-get-method-parameter vec 'tramp-direct-async)
(tramp-get-connection-property vec "direct-async-process" nil))))
(defun dirvish-tramp-dir-data-proc-s (proc _exit)
"Sentinel for `dirvish-data-for-dir''s process PROC."
(unwind-protect
(pcase-let* ((`(,dir ,buf ,setup) (process-get proc 'meta))
(str (with-current-buffer (process-buffer proc)
(substring-no-properties (buffer-string))))
(data (split-string str "\n")))
(when (buffer-live-p buf)
(with-current-buffer buf
(dirvish-ls-output-parser dir data)
(when setup (run-hooks 'dirvish-setup-hook))
(unless (derived-mode-p 'wdired-mode) (dirvish-update-body-h)))))
(dirvish--kill-buffer (process-buffer proc))))
(cl-defmethod dirvish-data-for-dir
(dir buffer setup &context ((dirvish-prop :remote) string))
"DIR BUFFER SETUP DIRVISH-PROP."
(when (dirvish-tramp--async-p (dirvish-prop :tramp))
(let* ((process-connection-type nil)
(buf (dirvish--util-buffer (make-temp-name "dir-data-")))
(cmd (format "ls -1lahi %s" (file-local-name dir)))
(proc (start-file-process-shell-command (buffer-name buf) buf cmd)))
(process-put proc 'meta (list dir buffer setup))
(set-process-sentinel proc #'dirvish-tramp-dir-data-proc-s))))
(dirvish-define-preview tramp (file _ dv)
"Preview files with `ls' or `head' for tramp files."
(let ((vec (dirvish-prop :tramp)))
(if (not (dirvish-tramp--async-p vec))
'(info . "File preview is not supported in current connection")
(let ((process-connection-type nil)
(localname (file-remote-p file 'localname))
(buf (dirvish--util-buffer 'preview dv nil t)) proc)
(when-let ((proc (get-buffer-process buf))) (delete-process proc))
(setq proc (start-file-process-shell-command
(buffer-name buf) buf
(format dirvish-tramp-preview-cmd localname localname)))
(set-process-sentinel
proc (lambda (proc _sig)
(when (memq (process-status proc) '(exit signal))
(shell-command-set-point-after-cmd (process-buffer proc)))))
(set-process-filter
proc (lambda (proc str)
(with-current-buffer (process-buffer proc)
(fundamental-mode)
(insert str))))
`(buffer . ,buf)))))
(defun dirvish-find-file-true-path ()
"Open truename of (maybe) symlink file under the cursor."
(interactive)
(dired-jump nil (file-truename (dired-get-filename nil t))))
(defun dirvish--kill-and-echo (string)
"Echo last killed STRING."
(kill-new string)
(let ((hint (propertize
"Copied: " 'face 'font-lock-builtin-face)))
(message "%s" (format "%s%s" hint string))))
(defun dirvish-copy-file-true-path ()
"Copy truename of (maybe) symlink file under the cursor."
(interactive)
(dirvish--kill-and-echo
(file-truename (dired-get-filename nil t))))
;;;###autoload
(defun dirvish-copy-file-name (&optional multi-line)
"Copy filename of marked files.
If MULTI-LINE, make every name occupy a new line."
(interactive "P")
(let* ((files (dired-get-marked-files t))
(names (mapconcat #'concat files (if multi-line "\n" " "))))
(dirvish--kill-and-echo (if multi-line (concat "\n" names) names))))
;;;###autoload
(defun dirvish-copy-file-path (&optional multi-line)
"Copy filepath of marked files.
If MULTI-LINE, make every path occupy a new line."
(interactive "P")
(let* ((files (mapcar #'file-local-name (dired-get-marked-files)))
(names (mapconcat #'concat files (if multi-line "\n" " "))))
(dirvish--kill-and-echo (if multi-line (concat "\n" names) names))))
(defun dirvish-copy-remote-path (&optional multi-line)
"Copy remote path of marked files.
If MULTI-LINE, make every path occupy a new line."
(interactive "P")
(let* ((tramp (or (dirvish-prop :tramp) (user-error "Not a remote folder")))
(files (cl-loop for file in (dired-get-marked-files)
for user = (tramp-file-name-user tramp)
for host = (tramp-file-name-host tramp)
for localname = (file-local-name file)
collect (format "%s%s%s:%s" (or user "")
(if user "@" "") host localname)))
(names (mapconcat #'concat files (if multi-line "\n" " "))))
(dirvish--kill-and-echo (if multi-line (concat "\n" names) names))))
(defun dirvish-copy-file-directory ()
"Copy directory name of file under the cursor."
(interactive)
(dirvish--kill-and-echo
(expand-file-name default-directory)))
;;;###autoload
(defun dirvish-total-file-size (&optional fileset)
"Echo total file size of FILESET.
FILESET defaults to `dired-get-marked-files'."
(interactive)
(cl-labels ((f-name (f) (if (not (file-directory-p f)) f
(directory-files-recursively f ".*" nil t)))
(f-size (f) (condition-case nil
(file-attribute-size (file-attributes f))
(file-error 0))))
(let* ((fileset (or fileset (dired-get-marked-files)))
(count (propertize (number-to-string (length fileset))
'face 'font-lock-builtin-face))
(size (thread-last fileset (mapcar #'f-name) flatten-tree
(mapcar #'f-size) (cl-reduce #'+)
file-size-human-readable)))
(message "%s" (format "Total size of %s entries: %s" count size)))))
;;;###autoload
(defun dirvish-layout-toggle ()
"Toggle layout of current Dirvish session.
A session with layout means it has a companion preview window and
possibly one or more parent windows."
(interactive)
(let* ((dv (or (dirvish-curr) (user-error "Not a dirvish buffer")))
(old-layout (car (dv-layout dv)))
(new-layout (unless old-layout (cdr (dv-layout dv))))
(buf (current-buffer)))
(if old-layout (set-window-configuration (dv-winconf dv))
(with-selected-window (dv-root-window dv) (quit-window)))
(setcar (dv-layout dv) new-layout)
(with-selected-window (dirvish--create-root-window dv)
(switch-to-buffer buf)
(dirvish--init-session dv))))
;;;###autoload
(defun dirvish-layout-switch (&optional recipe)
"Switch Dirvish layout according to RECIPE.
If RECIPE is not provided, switch to the recipe next to the
current layout defined in `dirvish-layout-recipes'."
(interactive)
(cl-loop
with dv = (let ((dv (dirvish-curr)))
(unless dv (user-error "Not in a Dirvish session"))
(unless (car (dv-layout dv))
(dirvish-layout-toggle)
(user-error "Dirvish: entering fullscreen")) dv)
with old-recipe = (car (dv-layout dv))
with recipes = (if recipe (list recipe) dirvish-layout-recipes)
with l-length = (length recipes)
for idx from 1
for recipe in recipes
when (or (eq idx l-length) (equal old-recipe recipe))
return
(let* ((new-idx (if (> idx (1- l-length)) 0 idx))
(new-recipe (nth new-idx recipes)))
(setf (dv-layout dv) (cons new-recipe new-recipe))
(dirvish--init-session dv))))
(defun dirvish-rename-space-to-underscore ()
"Rename marked files by replacing space to underscore."
(interactive)
(require 'dired-aux)
(if (derived-mode-p 'dired-mode)
(let ((markedFiles (dired-get-marked-files )))
(mapc (lambda (x)
(when (string-match " " x )
(dired-rename-file x (replace-regexp-in-string " " "_" x) nil)))
markedFiles)
(revert-buffer))
(user-error "Not in a Dired buffer")))
(defun dirvish--marked-files-as-info-string ()
"Return all marked files as a string."
(let* ((files (dired-get-marked-files t))
(count (length files)))
(cond ((<= count 1)
(format "current file: %s" (dired-get-filename t t)))
((<= count 10)
(format "marked files:\n %s" (mapconcat #'concat files "\n ")))
(t (format "marked files:\n %s\n ... and %s more (%s in total)"
(mapconcat #'concat (seq-take files 10) "\n ")
(- count 10) count)))))
;;;###autoload (autoload 'dirvish-file-info-menu "dirvish-extras" nil t)
(transient-define-prefix dirvish-file-info-menu ()
"Gather file information."
[:description
(lambda () (dirvish--format-menu-heading
"Get File Information"
(dirvish--marked-files-as-info-string)))
("n" "Copy file NAMEs in one line <n> / multiple lines <C-u n>"
dirvish-copy-file-name)
("p" "Copy file PATHs in one line <p> / multiple lines <C-u p>"
dirvish-copy-file-path)
("P" "Copy remote PATHs in one line <P> / multiple lines <C-u P>"
dirvish-copy-remote-path
:if (lambda () (dirvish-prop :remote)))
("d" "Copy file DIRECTORY" dirvish-copy-file-directory)
("l" "Copy symlink's truename" dirvish-copy-file-true-path
:if (lambda () (file-symlink-p (dired-get-filename nil t))))
("L" "Go to symlink's truename" dirvish-find-file-true-path
:if (lambda () (file-symlink-p (dired-get-filename nil t))))
("s" "Get total size of marked files" dirvish-total-file-size)
("t" "Show file TYPE" dired-show-file-type)])
(transient-define-prefix dirvish-subdir-menu ()
"Help Menu for Dired subdir management."
[:description
(lambda () (dirvish--format-menu-heading "Manage subdirs"))
("i" " Insert subdir" dired-maybe-insert-subdir :transient t)
("k" " Kill subdir" dired-kill-subdir :transient t)
("n" " Next subdir" dired-next-subdir :transient t)
("p" " Prev subdir" dired-prev-subdir :transient t)
("j" " Jump to subdir" dired-goto-subdir)
("$" " Hide subdir" dired-hide-subdir :transient t)
("M-$" "Hide all subdirs" dired-hide-all)])
;;;###autoload (autoload 'dirvish-chxxx-menu "dirvish-extras" nil t)
(transient-define-prefix dirvish-chxxx-menu ()
"Help Menu for file attribute modification commands."
[:description
(lambda () (dirvish--format-menu-heading "Modify file's attributes"))
("g" "Change file's GROUP" dired-do-chgrp)
("m" "Change file's MODE" dired-do-chmod)
("o" "Change file's OWNER" dired-do-chown)
("t" "Change file's TIMESTAMP" dired-do-touch)
("p" "Change file's PATH" dired-do-rename)])
;;;###autoload (autoload 'dirvish-mark-menu "dirvish-extras" nil t)
(transient-define-prefix dirvish-mark-menu ()
"Help Menu for `dired-mark/do-*' commands."
[["Mark or unmark files:"
("e" " by Extension" dired-mark-extension :transient t)
("*" " by Regexp (file name)" dired-mark-files-regexp :transient t)
("c" " by Regexp (file content)" dired-mark-files-containing-regexp :transient t)
("s" " by Subdir" dired-mark-subdir-files :transient t)
("x" " by Executable" dired-mark-executables :transient t)
("/" " by Directory" dired-mark-directories :transient t)
("@" " by Symlink" dired-mark-symlinks :transient t)
("&" " by Garbage" dired-flag-garbage-files :transient t)
("#" " by Auto-saved" dired-flag-auto-save-files :transient t)
("~" " by Backup" dired-flag-backup-files :transient t)
("." " by Numerical backup" dired-clean-directory :transient t)
("u" " Unmark this file" dired-unmark :transient t)
("DEL" "Unmark and move up line" dired-unmark-backward :transient t)
("U" " Unmark all files" dired-unmark-all-files :transient t)
("t" " Toggle marks" dired-toggle-marks :transient t)
("n" " Move to next marked file" dired-next-marked-file :transient t)
("p" " Move to prev marked file" dired-prev-marked-file :transient t)]
["Actions on marked files:"
("O" "Open" dired-do-find-marked-files)
("S" "Symlink" dired-do-symlink)
("H" "Hardlink" dired-do-hardlink)
("P" "Print" dired-do-print)
("X" "Delete flagged" dired-do-flagged-delete)
("r" "Search file contents" dired-do-find-regexp)
("R" "Replace file contents" dired-do-find-regexp-and-replace)
("B" "Byte compile elisp" dired-do-byte-compile)
("L" "Load elisp" dired-do-load)
("z" "Compress to" dired-do-compress-to)
("Z" "Compress" dired-do-compress)
("!" "Shell command" dired-do-shell-command)
("&" "Async shell command" dired-do-async-shell-command)
("N" "Echo number of marked files" dired-number-of-marked-files)
("A" "Modify file's attributes" dirvish-chxxx-menu)
("C" "Change mark type" dired-change-marks)
("k" "Kill lines" dired-do-kill-lines)]]
(interactive)
(require 'dired-x)
(require 'dired-aux)
(transient-setup 'dirvish-mark-menu))
(transient-define-prefix dirvish-renaming-menu ()
"Help Menu for file renaming in Dired."
[:description
(lambda () (dirvish--format-menu-heading "File renaming"))
("u" "Upper-case file name" dired-upcase)
("l" "Lower-case file name" dired-downcase)
("_" "Replace SPC with UNDERSCORE" dirvish-rename-space-to-underscore :if-derived 'dirvish-mode)
("w" "Enter wdired [writable dired]" wdired-change-to-wdired-mode :if-not-derived wdired-mode)])
(transient-define-prefix dirvish-epa-dired-menu ()
"Help menu for `epa-dired-do-*' commands."
[:description
(lambda () (dirvish--format-menu-heading "GNUpg assistant"))
("e" "Encrypt" epa-dired-do-encrypt)
("d" "Decrypt" epa-dired-do-decrypt)
("v" "Verify" epa-dired-do-verify)
("s" "Sign" epa-dired-do-sign)])
;;;###autoload (autoload 'dirvish-dired-cheatsheet "dirvish-extras" nil t)
(transient-define-prefix dirvish-dired-cheatsheet ()
"A collection of most frequently used Dired commands."
[:description
(lambda () (dirvish--format-menu-heading
"Dired cheatsheet"
"The keys listed here may be different from the actual bindings"))
("n" " Move to next line" dired-next-line :transient t)
("p" " Move to prev line" dired-previous-line :transient t)
(">" " Move to next dirline" dired-next-dirline :transient t)
("<" " Move to prev dirline" dired-prev-dirline :transient t)
("." " Add an empty file" dired-create-empty-file)
("+" " Add a directory" dired-create-directory)
("X" " Delete files" dired-do-delete)
("v" " View this file" dired-view-file)
("g" " Refresh buffer" revert-buffer)
("f" " Find file" dired-find-file)
("o" " Find file other window" dired-find-file-other-window)
("j" " Go to line for file" dired-goto-file)
("^" " Go to parent directory" dired-up-directory)
("=" " Compare files" dired-diff)
("(" " Toggle details" dired-hide-details-mode)
("d" " Display this file" dired-display-file)
("s" " Manage subdirs" dirvish-subdir-menu)
(":" " GnuPG helpers" dirvish-epa-dired-menu)
("h" " More info about Dired" describe-mode)])
(provide 'dirvish-extras)
;;; dirvish-extras.el ends here