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1615 lines
62 KiB
EmacsLisp
1615 lines
62 KiB
EmacsLisp
;;; dired-x.el --- extra Dired functionality -*- lexical-binding:t -*-
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;; Copyright (C) 1993-1994, 1997, 2001-2020 Free Software Foundation,
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;; Inc.
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;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>
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;; Lawrence R. Dodd <dodd@roebling.poly.edu>
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;; Maintainer: Romain Francoise <rfrancoise@gnu.org>
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;; Keywords: dired extensions files
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;; Package: emacs
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This is based on Sebastian Kremer's excellent dired-x.el (Dired Extra),
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;; version 1.191, adapted for GNU Emacs. See the `dired-x' info pages.
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;; At load time dired-x.el will install itself and bind some dired keys.
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;; Some dired.el and dired-aux.el functions have extra features if
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;; dired-x is loaded.
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;; User customization: M-x customize-group RET dired-x RET.
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;; *Please* see the `dired-x' info pages for more details.
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;;; Code:
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;; This is a no-op if dired-x is being loaded via `dired-load-hook',
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;; but maybe not if a dired-x function is being autoloaded.
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(require 'dired)
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;;; User-defined variables.
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(defgroup dired-x nil
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"Extended directory editing (dired-x)."
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:group 'dired)
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(defgroup dired-keys nil
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"Dired keys customizations."
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:prefix "dired-"
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:group 'dired-x)
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(defcustom dired-bind-vm nil
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"Non-nil means \"V\" runs `dired-vm', otherwise \"V\" runs `dired-rmail'.
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RMAIL files in the old Babyl format (used before Emacs 23.1)
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contain \"-*- rmail -*-\" at the top, so `dired-find-file'
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will run `rmail' on these files. New RMAIL files use the standard
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mbox format, and so cannot be distinguished in this way."
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:type 'boolean
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:group 'dired-keys)
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(defcustom dired-bind-jump t
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"Non-nil means bind `dired-jump' to C-x C-j, otherwise do not.
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Setting this variable directly after dired-x is loaded has no effect -
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use \\[customize]."
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:type 'boolean
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:set (lambda (sym val)
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(if (set sym val)
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(progn
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(define-key ctl-x-map "\C-j" 'dired-jump)
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(define-key ctl-x-4-map "\C-j" 'dired-jump-other-window))
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(if (eq 'dired-jump (lookup-key ctl-x-map "\C-j"))
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(define-key ctl-x-map "\C-j" nil))
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(if (eq 'dired-jump-other-window (lookup-key ctl-x-4-map "\C-j"))
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(define-key ctl-x-4-map "\C-j" nil))))
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:group 'dired-keys)
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(defcustom dired-bind-man t
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"Non-nil means bind `dired-man' to \"N\" in Dired, otherwise do not.
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Setting this variable directly after dired-x is loaded has no effect -
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use \\[customize]."
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:type 'boolean
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:set (lambda (sym val)
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(if (set sym val)
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(define-key dired-mode-map "N" 'dired-man)
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(if (eq 'dired-man (lookup-key dired-mode-map "N"))
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(define-key dired-mode-map "N" nil))))
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:group 'dired-keys)
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(defcustom dired-bind-info t
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"Non-nil means bind `dired-info' to \"I\" in Dired, otherwise do not.
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Setting this variable directly after dired-x is loaded has no effect -
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use \\[customize]."
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:type 'boolean
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:set (lambda (sym val)
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(if (set sym val)
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(define-key dired-mode-map "I" 'dired-info)
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(if (eq 'dired-info (lookup-key dired-mode-map "I"))
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(define-key dired-mode-map "I" nil))))
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:group 'dired-keys)
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(defcustom dired-vm-read-only-folders nil
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"If non-nil, \\[dired-vm] will visit all folders read-only.
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If neither nil nor t, e.g. the symbol `if-file-read-only', only
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files not writable by you are visited read-only."
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:type '(choice (const :tag "off" nil)
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(const :tag "on" t)
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(other :tag "non-writable only" if-file-read-only))
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:group 'dired-x)
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(defcustom dired-omit-size-limit 30000
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"Maximum size for the \"omitting\" feature.
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If nil, there is no maximum size."
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:type '(choice (const :tag "no maximum" nil) integer)
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:group 'dired-x)
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(defcustom dired-omit-case-fold 'filesystem
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"Determine whether \"omitting\" patterns are case-sensitive.
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When nil, always be case-sensitive; when t, always be
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case-insensitive; the default value, `filesystem', causes case
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folding to be used on case-insensitive filesystems only."
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:type '(choice (const :tag "Always case-sensitive" nil)
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(const :tag "Always case-insensitive" t)
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(const :tag "According to filesystem" filesystem))
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:group 'dired-x
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:version "26.1")
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(declare-function file-name-case-insensitive-p "fileio.c" (filename))
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(defun dired-omit-case-fold-p (dir)
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"Non-nil if `dired-omit-mode' should be case-insensitive in DIR."
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(if (eq dired-omit-case-fold 'filesystem)
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(file-name-case-insensitive-p dir)
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dired-omit-case-fold))
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(define-minor-mode dired-omit-mode
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"Toggle omission of uninteresting files in Dired (Dired-Omit mode).
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Dired-Omit mode is a buffer-local minor mode. When enabled in a
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Dired buffer, Dired does not list files whose filenames match
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regexp `dired-omit-files', nor files ending with extensions in
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`dired-omit-extensions'.
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To enable omitting in every Dired buffer, you can put this in
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your init file:
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(add-hook \\='dired-mode-hook (lambda () (dired-omit-mode)))
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See Info node `(dired-x) Omitting Variables' for more information."
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:group 'dired-x
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(if dired-omit-mode
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;; This will mention how many lines were omitted:
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(let ((dired-omit-size-limit nil)) (dired-omit-expunge))
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(revert-buffer)))
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(put 'dired-omit-mode 'safe-local-variable 'booleanp)
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(defcustom dired-omit-files "\\`[.]?#\\|\\`[.][.]?\\'"
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"Filenames matching this regexp will not be displayed.
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This only has effect when `dired-omit-mode' is t. See interactive function
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`dired-omit-mode' (\\[dired-omit-mode]) and variable
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`dired-omit-extensions'. The default is to omit `.', `..', auto-save
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files and lock files."
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:type 'regexp
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:group 'dired-x)
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(defcustom dired-omit-verbose t
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"When non-nil, show messages when omitting files.
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When nil, don't show messages."
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:version "24.1"
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:type 'boolean
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:group 'dired-x)
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(defcustom dired-find-subdir nil ; t is pretty near to DWIM...
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"If non-nil, Dired always finds a directory in a buffer of its own.
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If nil, Dired finds the directory as a subdirectory in some other buffer
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if it is present as one.
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If there are several Dired buffers for a directory, the most recently
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used is chosen.
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Dired avoids switching to the current buffer, so that if you have
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a normal and a wildcard buffer for the same directory, \\[dired] will
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toggle between those two."
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:type 'boolean
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:group 'dired-x)
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(defcustom dired-guess-shell-gnutar
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(catch 'found
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(dolist (exe '("tar" "gtar"))
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(if (with-temp-buffer
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(ignore-errors (call-process exe nil t nil "--version"))
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(and (re-search-backward "GNU tar" nil t) t))
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(throw 'found exe))))
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"If non-nil, name of GNU tar executable.
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\(E.g., \"tar\" or \"gtar\"). The `z' switch will be used with it for
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compressed or gzip'ed tar files. If you don't have GNU tar, set this
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to nil: a pipe using `zcat' or `gunzip -c' will be used."
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;; Changed from system-type test to testing --version output.
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;; Maybe test --help for -z instead?
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:version "24.1"
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:type '(choice (const :tag "Not GNU tar" nil)
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(string :tag "Command name"))
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:group 'dired-x)
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(defcustom dired-guess-shell-gzip-quiet t
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"Non-nil says pass -q to gzip overriding verbose GZIP environment."
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:type 'boolean
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:group 'dired-x)
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(defcustom dired-guess-shell-znew-switches nil
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"If non-nil, then string of switches passed to `znew', example: \"-K\"."
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:type '(choice (const :tag "None" nil)
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(string :tag "Switches"))
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:group 'dired-x)
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(defcustom dired-clean-up-buffers-too t
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"Non-nil means offer to kill buffers visiting files and dirs deleted in Dired."
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:type 'boolean
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:group 'dired-x)
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(defcustom dired-clean-confirm-killing-deleted-buffers t
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"If nil, don't ask whether to kill buffers visiting deleted files."
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:version "26.1"
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:type 'boolean
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:group 'dired-x)
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;;; KEY BINDINGS.
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(when (keymapp (lookup-key dired-mode-map "*"))
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(define-key dired-mode-map "*(" 'dired-mark-sexp)
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(define-key dired-mode-map "*O" 'dired-mark-omitted)
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(define-key dired-mode-map "*." 'dired-mark-extension))
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(when (keymapp (lookup-key dired-mode-map "%"))
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(define-key dired-mode-map "%Y" 'dired-do-relsymlink-regexp))
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(define-key dired-mode-map "\C-x\M-o" 'dired-omit-mode)
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(define-key dired-mode-map "\M-(" 'dired-mark-sexp)
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(define-key dired-mode-map "\M-!" 'dired-smart-shell-command)
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(define-key dired-mode-map "\M-G" 'dired-goto-subdir)
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(define-key dired-mode-map "F" 'dired-do-find-marked-files)
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(define-key dired-mode-map "Y" 'dired-do-relsymlink)
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(define-key dired-mode-map "V" 'dired-do-run-mail)
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;;; MENU BINDINGS
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(require 'easymenu)
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(when-let ((menu (lookup-key dired-mode-map [menu-bar])))
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(easy-menu-add-item menu '("Operate")
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["Find Files" dired-do-find-marked-files
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:help "Find current or marked files"]
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"Shell Command...")
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(easy-menu-add-item menu '("Operate")
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["Relative Symlink to..." dired-do-relsymlink
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:visible (fboundp 'make-symbolic-link)
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:help "Make relative symbolic links for current or \
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marked files"]
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"Hardlink to...")
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(easy-menu-add-item menu '("Mark")
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["Flag Extension..." dired-flag-extension
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:help "Flag files with a certain extension for deletion"]
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"Mark Executables")
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(easy-menu-add-item menu '("Mark")
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["Mark Extension..." dired-mark-extension
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:help "Mark files with a certain extension"]
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"Unmark All")
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(easy-menu-add-item menu '("Mark")
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["Mark Omitted" dired-mark-omitted
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:help "Mark files matching `dired-omit-files' \
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and `dired-omit-extensions'"]
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"Unmark All")
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(easy-menu-add-item menu '("Regexp")
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["Relative Symlink..." dired-do-relsymlink-regexp
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:visible (fboundp 'make-symbolic-link)
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:help "Make relative symbolic links for files \
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matching regexp"]
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"Hardlink...")
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(easy-menu-add-item menu '("Immediate")
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["Omit Mode" dired-omit-mode
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:style toggle :selected dired-omit-mode
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:help "Enable or disable omitting \"uninteresting\" \
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files"]
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"Refresh"))
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;; Install into appropriate hooks.
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(add-hook 'dired-mode-hook 'dired-extra-startup)
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(add-hook 'dired-after-readin-hook 'dired-omit-expunge)
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(defun dired-extra-startup ()
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"Automatically put on `dired-mode-hook' to get extra Dired features:
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\\<dired-mode-map>
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\\[dired-do-run-mail]\t-- run mail on folder (see `dired-bind-vm')
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\\[dired-info]\t-- run info on file
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\\[dired-man]\t-- run man on file
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\\[dired-do-find-marked-files]\t-- visit all marked files simultaneously
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\\[dired-omit-mode]\t-- toggle omitting of files
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\\[dired-mark-sexp]\t-- mark by Lisp expression
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To see the options you can set, use M-x customize-group RET dired-x RET.
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See also the functions:
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`dired-flag-extension'
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`dired-virtual'
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`dired-jump'
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`dired-man'
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`dired-vm'
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`dired-rmail'
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`dired-info'
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`dired-do-find-marked-files'"
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(interactive)
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;; These must be done in each new dired buffer.
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(dired-omit-startup))
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;;; EXTENSION MARKING FUNCTIONS.
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(defun dired--mark-suffix-interactive-spec ()
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(let* ((default
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(let ((file (dired-get-filename nil t)))
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(when file
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(file-name-extension file))))
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(suffix
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(read-string (format "%s extension%s: "
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(if (equal current-prefix-arg '(4))
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"UNmarking"
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"Marking")
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(if default
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(format " (default %s)" default)
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"")) nil nil default))
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(marker
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(pcase current-prefix-arg
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('(4) ?\s)
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('(16)
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(let* ((dflt (char-to-string dired-marker-char))
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(input (read-string
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(format
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"Marker character to use (default %s): " dflt)
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nil nil dflt)))
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(aref input 0)))
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(_ dired-marker-char))))
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(list suffix marker)))
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;; Mark files with some extension.
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(defun dired-mark-extension (extension &optional marker-char)
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"Mark all files with a certain EXTENSION for use in later commands.
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A `.' is automatically prepended to EXTENSION when not present.
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EXTENSION may also be a list of extensions instead of a single one.
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Optional MARKER-CHAR is marker to use.
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Interactively, ask for EXTENSION.
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Prefixed with one C-u, unmark files instead.
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Prefixed with two C-u's, prompt for MARKER-CHAR and mark files with it."
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(interactive (dired--mark-suffix-interactive-spec))
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(unless (listp extension)
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(setq extension (list extension)))
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(dired-mark-files-regexp
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(concat ".";; don't match names with nothing but an extension
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"\\("
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(mapconcat
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(lambda (x)
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(regexp-quote
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(if (string-prefix-p "." x) x (concat "." x))))
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extension "\\|")
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"\\)$")
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marker-char))
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;; Mark files ending with some suffix.
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(defun dired-mark-suffix (suffix &optional marker-char)
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"Mark all files with a certain SUFFIX for use in later commands.
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A `.' is *not* automatically prepended to the string entered; see
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also `dired-mark-extension', which is similar but automatically
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prepends `.' when not present.
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SUFFIX may also be a list of suffixes instead of a single one.
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Optional MARKER-CHAR is marker to use.
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Interactively, ask for SUFFIX.
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Prefixed with one C-u, unmark files instead.
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Prefixed with two C-u's, prompt for MARKER-CHAR and mark files with it."
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(interactive (dired--mark-suffix-interactive-spec))
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(unless (listp suffix)
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(setq suffix (list suffix)))
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(dired-mark-files-regexp
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(concat ".";; don't match names with nothing but an extension
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"\\("
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(mapconcat 'regexp-quote suffix "\\|")
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"\\)$")
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marker-char))
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||
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(defun dired-flag-extension (extension)
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"In Dired, flag all files with a certain EXTENSION for deletion.
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A `.' is *not* automatically prepended to the string entered."
|
||
(interactive "sFlagging extension: ")
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||
(dired-mark-extension extension dired-del-marker))
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||
|
||
;; Define some unpopular file extensions. Used for cleaning and omitting.
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||
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||
(defvar dired-patch-unclean-extensions
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'(".rej" ".orig")
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"List of extensions of dispensable files created by the `patch' program.")
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||
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||
(defvar dired-tex-unclean-extensions
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'(".toc" ".log" ".aux");; these are already in completion-ignored-extensions
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||
"List of extensions of dispensable files created by TeX.")
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|
||
(defvar dired-latex-unclean-extensions
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'(".idx" ".lof" ".lot" ".glo")
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||
"List of extensions of dispensable files created by LaTeX.")
|
||
|
||
(defvar dired-bibtex-unclean-extensions
|
||
'(".blg" ".bbl")
|
||
"List of extensions of dispensable files created by BibTeX.")
|
||
|
||
(defvar dired-texinfo-unclean-extensions
|
||
'(".cp" ".cps" ".fn" ".fns" ".ky" ".kys" ".pg" ".pgs"
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||
".tp" ".tps" ".vr" ".vrs")
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||
"List of extensions of dispensable files created by texinfo.")
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||
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||
(defun dired-clean-patch ()
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||
"Flag dispensable files created by patch for deletion.
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||
See variable `dired-patch-unclean-extensions'."
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||
(interactive)
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||
(dired-flag-extension dired-patch-unclean-extensions))
|
||
|
||
(defun dired-clean-tex ()
|
||
"Flag dispensable files created by [La]TeX etc. for deletion.
|
||
See variables `dired-tex-unclean-extensions',
|
||
`dired-latex-unclean-extensions', `dired-bibtex-unclean-extensions' and
|
||
`dired-texinfo-unclean-extensions'."
|
||
(interactive)
|
||
(dired-flag-extension (append dired-texinfo-unclean-extensions
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||
dired-latex-unclean-extensions
|
||
dired-bibtex-unclean-extensions
|
||
dired-tex-unclean-extensions)))
|
||
|
||
(defun dired-very-clean-tex ()
|
||
"Flag dispensable files created by [La]TeX *and* \".dvi\" for deletion.
|
||
See variables `dired-texinfo-unclean-extensions',
|
||
`dired-latex-unclean-extensions', `dired-bibtex-unclean-extensions' and
|
||
`dired-texinfo-unclean-extensions'."
|
||
(interactive)
|
||
(dired-flag-extension (append dired-texinfo-unclean-extensions
|
||
dired-latex-unclean-extensions
|
||
dired-bibtex-unclean-extensions
|
||
dired-tex-unclean-extensions
|
||
(list ".dvi"))))
|
||
|
||
(defvar archive-superior-buffer)
|
||
(defvar tar-superior-buffer)
|
||
;;; JUMP.
|
||
|
||
;;;###autoload
|
||
(defun dired-jump (&optional other-window file-name)
|
||
"Jump to Dired buffer corresponding to current buffer.
|
||
If in a file, Dired the current directory and move to file's line.
|
||
If in Dired already, pop up a level and goto old directory's line.
|
||
In case the proper Dired file line cannot be found, refresh the dired
|
||
buffer and try again.
|
||
When OTHER-WINDOW is non-nil, jump to Dired buffer in other window.
|
||
When FILE-NAME is non-nil, jump to its line in Dired.
|
||
Interactively with prefix argument, read FILE-NAME."
|
||
(interactive
|
||
(list nil (and current-prefix-arg
|
||
(read-file-name "Jump to Dired file: "))))
|
||
(cond
|
||
((and (bound-and-true-p archive-subfile-mode)
|
||
(buffer-live-p archive-superior-buffer))
|
||
(switch-to-buffer archive-superior-buffer))
|
||
((and (bound-and-true-p tar-subfile-mode)
|
||
(buffer-live-p tar-superior-buffer))
|
||
(switch-to-buffer tar-superior-buffer))
|
||
(t
|
||
;; Expand file-name before `dired-goto-file' call:
|
||
;; `dired-goto-file' requires its argument to be an absolute
|
||
;; file name; the result of `read-file-name' could be
|
||
;; an abbreviated file name (Bug#24409).
|
||
(let* ((file (or (and file-name (expand-file-name file-name))
|
||
buffer-file-name))
|
||
(dir (if file (file-name-directory file) default-directory)))
|
||
(if (and (eq major-mode 'dired-mode) (null file-name))
|
||
(progn
|
||
(setq dir (dired-current-directory))
|
||
(dired-up-directory other-window)
|
||
(unless (dired-goto-file dir)
|
||
;; refresh and try again
|
||
(dired-insert-subdir (file-name-directory dir))
|
||
(dired-goto-file dir)))
|
||
(if other-window
|
||
(dired-other-window dir)
|
||
(dired dir))
|
||
(if file
|
||
(or (dired-goto-file file)
|
||
;; refresh and try again
|
||
(progn
|
||
(dired-insert-subdir (file-name-directory file))
|
||
(dired-goto-file file))
|
||
;; Toggle omitting, if it is on, and try again.
|
||
(when dired-omit-mode
|
||
(dired-omit-mode)
|
||
(dired-goto-file file)))))))))
|
||
|
||
;;;###autoload
|
||
(defun dired-jump-other-window (&optional file-name)
|
||
"Like \\[dired-jump] (`dired-jump') but in other window."
|
||
(interactive
|
||
(list (and current-prefix-arg
|
||
(read-file-name "Jump to Dired file: "))))
|
||
(dired-jump t file-name))
|
||
|
||
;;; OMITTING.
|
||
|
||
;; Enhanced omitting of lines from directory listings.
|
||
;; Marked files are never omitted.
|
||
|
||
;; should probably get rid of this and always use 'no-dir.
|
||
;; sk 28-Aug-1991 09:37
|
||
(defvar dired-omit-localp 'no-dir
|
||
"The LOCALP argument `dired-omit-expunge' passes to `dired-get-filename'.
|
||
If it is `no-dir', omitting is much faster, but you can only match
|
||
against the non-directory part of the file name. Set it to nil if you
|
||
need to match the entire file name.")
|
||
|
||
;; \017=^O for Omit - other packages can chose other control characters.
|
||
(defvar dired-omit-marker-char ?\017
|
||
"Temporary marker used by Dired-Omit.
|
||
Should never be used as marker by the user or other packages.")
|
||
|
||
(defun dired-omit-startup ()
|
||
(or (assq 'dired-omit-mode minor-mode-alist)
|
||
(setq minor-mode-alist
|
||
(append '((dired-omit-mode
|
||
(:eval (if (eq major-mode 'dired-mode)
|
||
" Omit" ""))))
|
||
minor-mode-alist))))
|
||
|
||
(defun dired-mark-omitted ()
|
||
"Mark files matching `dired-omit-files' and `dired-omit-extensions'."
|
||
(interactive)
|
||
(let ((dired-omit-mode nil)) (revert-buffer)) ;; Show omitted files
|
||
(dired-mark-unmarked-files (dired-omit-regexp) nil nil dired-omit-localp
|
||
(dired-omit-case-fold-p (if (stringp dired-directory)
|
||
dired-directory
|
||
(car dired-directory)))))
|
||
|
||
(defcustom dired-omit-extensions
|
||
(append completion-ignored-extensions
|
||
dired-latex-unclean-extensions
|
||
dired-bibtex-unclean-extensions
|
||
dired-texinfo-unclean-extensions)
|
||
"If non-nil, a list of extensions (strings) to omit from Dired listings.
|
||
Defaults to elements of `completion-ignored-extensions',
|
||
`dired-latex-unclean-extensions', `dired-bibtex-unclean-extensions', and
|
||
`dired-texinfo-unclean-extensions'.
|
||
|
||
See interactive function `dired-omit-mode' (\\[dired-omit-mode]) and
|
||
variables `dired-omit-mode' and `dired-omit-files'."
|
||
:type '(repeat string)
|
||
:group 'dired-x)
|
||
|
||
(defun dired-omit-expunge (&optional regexp)
|
||
"Erases all unmarked files matching REGEXP.
|
||
Does nothing if global variable `dired-omit-mode' is nil, or if called
|
||
non-interactively and buffer is bigger than `dired-omit-size-limit'.
|
||
If REGEXP is nil or not specified, uses `dired-omit-files', and also omits
|
||
filenames ending in `dired-omit-extensions'.
|
||
If REGEXP is the empty string, this function is a no-op.
|
||
|
||
This functions works by temporarily binding `dired-marker-char' to
|
||
`dired-omit-marker-char' and calling `dired-do-kill-lines'."
|
||
(interactive "sOmit files (regexp): ")
|
||
(if (and dired-omit-mode
|
||
(or (called-interactively-p 'interactive)
|
||
(not dired-omit-size-limit)
|
||
(< (buffer-size) dired-omit-size-limit)
|
||
(progn
|
||
(when dired-omit-verbose
|
||
(message "Not omitting: directory larger than %d characters."
|
||
dired-omit-size-limit))
|
||
(setq dired-omit-mode nil)
|
||
nil)))
|
||
(let ((omit-re (or regexp (dired-omit-regexp)))
|
||
(old-modified-p (buffer-modified-p))
|
||
count)
|
||
(or (string= omit-re "")
|
||
(let ((dired-marker-char dired-omit-marker-char))
|
||
(when dired-omit-verbose (message "Omitting..."))
|
||
(if (dired-mark-unmarked-files omit-re nil nil dired-omit-localp
|
||
(dired-omit-case-fold-p (if (stringp dired-directory)
|
||
dired-directory
|
||
(car dired-directory))))
|
||
(progn
|
||
(setq count (dired-do-kill-lines
|
||
nil
|
||
(if dired-omit-verbose "Omitted %d line%s." "")))
|
||
(force-mode-line-update))
|
||
(when dired-omit-verbose (message "(Nothing to omit)")))))
|
||
;; Try to preserve modified state of buffer. So `%*' doesn't appear
|
||
;; in mode-line of omitted buffers.
|
||
(set-buffer-modified-p (and old-modified-p
|
||
(save-excursion
|
||
(goto-char (point-min))
|
||
(re-search-forward dired-re-mark nil t))))
|
||
count)))
|
||
|
||
(defun dired-omit-regexp ()
|
||
(concat (if dired-omit-files (concat "\\(" dired-omit-files "\\)") "")
|
||
(if (and dired-omit-files dired-omit-extensions) "\\|" "")
|
||
(if dired-omit-extensions
|
||
(concat ".";; a non-extension part should exist
|
||
"\\("
|
||
(mapconcat 'regexp-quote dired-omit-extensions "\\|")
|
||
"\\)$")
|
||
"")))
|
||
|
||
;; Returns t if any work was done, nil otherwise.
|
||
(defun dired-mark-unmarked-files (regexp msg &optional unflag-p localp case-fold-p)
|
||
"Mark unmarked files matching REGEXP, displaying MSG.
|
||
REGEXP is matched against the entire file name. When called
|
||
interactively, prompt for REGEXP.
|
||
With prefix argument, unflag all those files.
|
||
Optional fourth argument LOCALP is as in `dired-get-filename'.
|
||
Optional fifth argument CASE-FOLD-P specifies the value of
|
||
`case-fold-search' used for matching REGEXP."
|
||
(interactive
|
||
(list (read-regexp
|
||
"Mark unmarked files matching regexp (default all): "
|
||
nil 'dired-regexp-history)
|
||
nil current-prefix-arg nil))
|
||
(let ((dired-marker-char (if unflag-p ?\s dired-marker-char)))
|
||
(dired-mark-if
|
||
(and
|
||
(if unflag-p
|
||
;; Already marked.
|
||
(not (= (following-char) ?\s))
|
||
;; Not already marked.
|
||
(= (following-char) ?\s))
|
||
;; Interesting.
|
||
(let ((fn (dired-get-filename localp t))
|
||
;; Match patterns case-insensitively on case-insensitive
|
||
;; systems
|
||
(case-fold-search case-fold-p))
|
||
(and fn (string-match-p regexp fn))))
|
||
msg)))
|
||
|
||
|
||
;;; VIRTUAL DIRED MODE.
|
||
|
||
;; For browsing `ls -lR' listings in a dired-like fashion.
|
||
|
||
(defalias 'virtual-dired 'dired-virtual)
|
||
(defun dired-virtual (dirname &optional switches)
|
||
"Put this buffer into Virtual Dired mode.
|
||
|
||
In Virtual Dired mode, all commands that do not actually consult the
|
||
filesystem will work.
|
||
|
||
This is useful if you want to peruse and move around in an ls -lR
|
||
output file, for example one you got from an ftp server. With
|
||
ange-ftp, you can even Dired a directory containing an ls-lR file,
|
||
visit that file and turn on Virtual Dired mode. But don't try to save
|
||
this file, as dired-virtual indents the listing and thus changes the
|
||
buffer.
|
||
|
||
If you have saved a Dired buffer in a file you can use \\[dired-virtual] to
|
||
resume it in a later session.
|
||
|
||
Type \\<dired-mode-map>\\[revert-buffer] \
|
||
in the Virtual Dired buffer and answer `y' to convert
|
||
the virtual to a real Dired buffer again. You don't have to do this, though:
|
||
you can relist single subdirs using \\[dired-do-redisplay]."
|
||
|
||
;; DIRNAME is the top level directory of the buffer. It will become
|
||
;; its `default-directory'. If nil, the old value of
|
||
;; default-directory is used.
|
||
|
||
;; Optional SWITCHES are the ls switches to use.
|
||
|
||
;; Shell wildcards will be used if there already is a `wildcard'
|
||
;; line in the buffer (thus it is a saved Dired buffer), but there
|
||
;; is no other way to get wildcards. Insert a `wildcard' line by
|
||
;; hand if you want them.
|
||
|
||
(interactive
|
||
(list (read-string "Virtual Dired directory: " (dired-virtual-guess-dir))))
|
||
(goto-char (point-min))
|
||
(or (looking-at-p " ")
|
||
;; if not already indented, do it now:
|
||
(indent-region (point-min) (point-max) 2))
|
||
(or dirname (setq dirname default-directory))
|
||
(setq dirname (expand-file-name (file-name-as-directory dirname)))
|
||
(setq default-directory dirname) ; contains no wildcards
|
||
(let ((wildcard (save-excursion
|
||
(goto-char (point-min))
|
||
(forward-line 1)
|
||
(and (looking-at "^ wildcard ")
|
||
(buffer-substring (match-end 0)
|
||
(line-end-position))))))
|
||
(if wildcard
|
||
(setq dirname (expand-file-name wildcard default-directory))))
|
||
;; If raw ls listing (not a saved old dired buffer), give it a
|
||
;; decent subdir headerline:
|
||
(goto-char (point-min))
|
||
(or (looking-at-p dired-subdir-regexp)
|
||
(insert " "
|
||
(directory-file-name (file-name-directory default-directory))
|
||
":\n"))
|
||
(dired-mode dirname (or switches dired-listing-switches))
|
||
(setq mode-name "Virtual Dired"
|
||
revert-buffer-function 'dired-virtual-revert)
|
||
(set (make-local-variable 'dired-subdir-alist) nil)
|
||
(dired-build-subdir-alist)
|
||
(goto-char (point-min))
|
||
(dired-initial-position dirname))
|
||
|
||
(defun dired-virtual-guess-dir ()
|
||
"Guess and return appropriate working directory of this buffer.
|
||
The buffer is assumed to be in Dired or ls -lR format. The guess is
|
||
based upon buffer contents. If nothing could be guessed, returns
|
||
nil."
|
||
|
||
(let ((regexp "^\\( \\)?\\([^ \n\r]*\\)\\(:\\)[\n\r]")
|
||
(subexpr 2))
|
||
(goto-char (point-min))
|
||
(cond ((looking-at regexp)
|
||
;; If a saved dired buffer, look to which dir and
|
||
;; perhaps wildcard it belongs:
|
||
(let ((dir (buffer-substring (match-beginning subexpr)
|
||
(match-end subexpr))))
|
||
(file-name-as-directory dir)))
|
||
;; Else no match for headerline found. It's a raw ls listing.
|
||
;; In raw ls listings the directory does not have a headerline
|
||
;; try parent of first subdir, if any
|
||
((re-search-forward regexp nil t)
|
||
(file-name-directory
|
||
(directory-file-name
|
||
(file-name-as-directory
|
||
(buffer-substring (match-beginning subexpr)
|
||
(match-end subexpr))))))
|
||
(t ; if all else fails
|
||
nil))))
|
||
|
||
|
||
(defun dired-virtual-revert (&optional _arg _noconfirm)
|
||
(if (not
|
||
(y-or-n-p "Cannot revert a Virtual Dired buffer - switch to Real Dired mode? "))
|
||
(error "Cannot revert a Virtual Dired buffer")
|
||
(setq mode-name "Dired"
|
||
revert-buffer-function 'dired-revert)
|
||
(revert-buffer)))
|
||
|
||
;; A zero-arg version of dired-virtual.
|
||
(defun dired-virtual-mode ()
|
||
"Put current buffer into Virtual Dired mode (see `dired-virtual').
|
||
Useful on `magic-mode-alist' with the regexp
|
||
|
||
\"^ \\\\(/[^ /]+\\\\)+/?:$\"
|
||
|
||
to put saved Dired buffers automatically into Virtual Dired mode.
|
||
|
||
Also useful for `auto-mode-alist' like this:
|
||
|
||
(add-to-list \\='auto-mode-alist
|
||
\\='(\"[^/]\\\\.dired\\\\\\='\" . dired-virtual-mode))"
|
||
(interactive)
|
||
(dired-virtual (dired-virtual-guess-dir)))
|
||
|
||
|
||
;;; SMART SHELL.
|
||
|
||
;; An Emacs buffer can have but one working directory, stored in the
|
||
;; buffer-local variable `default-directory'. A Dired buffer may have
|
||
;; several subdirectories inserted, but still has but one working directory:
|
||
;; that of the top level Dired directory in that buffer. For some commands
|
||
;; it is appropriate that they use the current Dired directory instead of
|
||
;; `default-directory', e.g., `find-file' and `compile'. This is a general
|
||
;; mechanism is provided for special handling of the working directory in
|
||
;; special major modes.
|
||
|
||
(defun dired-smart-shell-command (command &optional output-buffer error-buffer)
|
||
"Like function `shell-command', but in the current Virtual Dired directory."
|
||
(interactive
|
||
(list
|
||
(read-shell-command "Shell command: " nil nil
|
||
(cond
|
||
(buffer-file-name (file-relative-name buffer-file-name))
|
||
((eq major-mode 'dired-mode) (dired-get-filename t t))))
|
||
current-prefix-arg
|
||
shell-command-default-error-buffer))
|
||
(let ((default-directory (or (and (eq major-mode 'dired-mode)
|
||
(dired-current-directory))
|
||
default-directory)))
|
||
(shell-command command output-buffer error-buffer)))
|
||
|
||
|
||
;;; GUESS SHELL COMMAND.
|
||
|
||
;; Brief Description:
|
||
;;;
|
||
;; * `dired-do-shell-command' is bound to `!' by dired.el.
|
||
;;;
|
||
;; * `dired-guess-shell-command' provides smarter defaults for
|
||
;;; dired-aux.el's `dired-read-shell-command'.
|
||
;;;
|
||
;; * `dired-guess-shell-command' calls `dired-guess-default' with list of
|
||
;;; marked files.
|
||
;;;
|
||
;; * Parse `dired-guess-shell-alist-user' and
|
||
;;; `dired-guess-shell-alist-default' (in that order) for the first REGEXP
|
||
;;; that matches the first file in the file list.
|
||
;;;
|
||
;; * If the REGEXP matches all the entries of the file list then evaluate
|
||
;;; COMMAND, which is either a string or a Lisp expression returning a
|
||
;;; string. COMMAND may be a list of commands.
|
||
;;;
|
||
;; * Return this command to `dired-guess-shell-command' which prompts user
|
||
;;; with it. The list of commands is put into the list of default values.
|
||
;;; If a command is used successfully then it is stored permanently in
|
||
;;; `dired-shell-command-history'.
|
||
|
||
;; Guess what shell command to apply to a file.
|
||
(defvar dired-shell-command-history nil
|
||
"History list for commands that read dired-shell commands.")
|
||
|
||
;; Default list of shell commands.
|
||
|
||
;; NOTE: Use `gunzip -c' instead of `zcat' on `.gz' files. Some do not
|
||
;; install GNU zip's version of zcat.
|
||
|
||
(autoload 'Man-support-local-filenames "man")
|
||
(autoload 'vc-responsible-backend "vc")
|
||
|
||
(defvar dired-guess-shell-alist-default
|
||
(list
|
||
(list "\\.tar\\'"
|
||
'(if dired-guess-shell-gnutar
|
||
(concat dired-guess-shell-gnutar " xvf")
|
||
"tar xvf")
|
||
;; Extract files into a separate subdirectory
|
||
'(if dired-guess-shell-gnutar
|
||
(concat "mkdir " (file-name-sans-extension file)
|
||
"; " dired-guess-shell-gnutar " -C "
|
||
(file-name-sans-extension file) " -xvf")
|
||
(concat "mkdir " (file-name-sans-extension file)
|
||
"; tar -C " (file-name-sans-extension file) " -xvf"))
|
||
;; List archive contents.
|
||
'(if dired-guess-shell-gnutar
|
||
(concat dired-guess-shell-gnutar " tvf")
|
||
"tar tvf"))
|
||
|
||
;; REGEXPS for compressed archives must come before the .Z rule to
|
||
;; be recognized:
|
||
(list "\\.tar\\.Z\\'"
|
||
;; Untar it.
|
||
'(if dired-guess-shell-gnutar
|
||
(concat dired-guess-shell-gnutar " zxvf")
|
||
(concat "zcat * | tar xvf -"))
|
||
;; Optional conversion to gzip format.
|
||
'(concat "znew" (if dired-guess-shell-gzip-quiet " -q")
|
||
" " dired-guess-shell-znew-switches))
|
||
|
||
;; gzip'ed archives
|
||
(list "\\.t\\(ar\\.\\)?gz\\'"
|
||
'(if dired-guess-shell-gnutar
|
||
(concat dired-guess-shell-gnutar " zxvf")
|
||
(concat "gunzip -qc * | tar xvf -"))
|
||
;; Extract files into a separate subdirectory
|
||
'(if dired-guess-shell-gnutar
|
||
(concat "mkdir " (file-name-sans-extension file)
|
||
"; " dired-guess-shell-gnutar " -C "
|
||
(file-name-sans-extension file) " -zxvf")
|
||
(concat "mkdir " (file-name-sans-extension file)
|
||
"; gunzip -qc * | tar -C "
|
||
(file-name-sans-extension file) " -xvf -"))
|
||
;; Optional decompression.
|
||
'(concat "gunzip" (if dired-guess-shell-gzip-quiet " -q" ""))
|
||
;; List archive contents.
|
||
'(if dired-guess-shell-gnutar
|
||
(concat dired-guess-shell-gnutar " ztvf")
|
||
(concat "gunzip -qc * | tar tvf -")))
|
||
|
||
;; bzip2'ed archives
|
||
(list "\\.t\\(ar\\.bz2\\|bz\\)\\'"
|
||
"bunzip2 -c * | tar xvf -"
|
||
;; Extract files into a separate subdirectory
|
||
'(concat "mkdir " (file-name-sans-extension file)
|
||
"; bunzip2 -c * | tar -C "
|
||
(file-name-sans-extension file) " -xvf -")
|
||
;; Optional decompression.
|
||
"bunzip2")
|
||
|
||
;; xz'ed archives
|
||
(list "\\.t\\(ar\\.\\)?xz\\'"
|
||
"unxz -c * | tar xvf -"
|
||
;; Extract files into a separate subdirectory
|
||
'(concat "mkdir " (file-name-sans-extension file)
|
||
"; unxz -c * | tar -C "
|
||
(file-name-sans-extension file) " -xvf -")
|
||
;; Optional decompression.
|
||
"unxz")
|
||
|
||
'("\\.shar\\.Z\\'" "zcat * | unshar")
|
||
'("\\.shar\\.g?z\\'" "gunzip -qc * | unshar")
|
||
|
||
'("\\.e?ps\\'" "ghostview" "xloadimage" "lpr")
|
||
(list "\\.e?ps\\.g?z\\'" "gunzip -qc * | ghostview -"
|
||
;; Optional decompression.
|
||
'(concat "gunzip" (if dired-guess-shell-gzip-quiet " -q")))
|
||
(list "\\.e?ps\\.Z\\'" "zcat * | ghostview -"
|
||
;; Optional conversion to gzip format.
|
||
'(concat "znew" (if dired-guess-shell-gzip-quiet " -q")
|
||
" " dired-guess-shell-znew-switches))
|
||
|
||
(list "\\.patch\\'"
|
||
'(if (eq (ignore-errors (vc-responsible-backend default-directory)) 'Git)
|
||
"cat * | git apply"
|
||
"cat * | patch"))
|
||
(list "\\.patch\\.g?z\\'" "gunzip -qc * | patch"
|
||
;; Optional decompression.
|
||
'(concat "gunzip" (if dired-guess-shell-gzip-quiet " -q")))
|
||
(list "\\.patch\\.Z\\'" "zcat * | patch"
|
||
;; Optional conversion to gzip format.
|
||
'(concat "znew" (if dired-guess-shell-gzip-quiet " -q")
|
||
" " dired-guess-shell-znew-switches))
|
||
|
||
;; The following four extensions are useful with dired-man ("N" key)
|
||
;; FIXME "man ./" does not work with dired-do-shell-command,
|
||
;; because there seems to be no way for us to modify the filename,
|
||
;; only the command. Hmph. `dired-man' works though.
|
||
(list "\\.\\(?:[0-9]\\|man\\)\\'"
|
||
'(let ((loc (Man-support-local-filenames)))
|
||
(cond ((eq loc 'man-db) "man -l")
|
||
((eq loc 'man) "man ./")
|
||
(t
|
||
"cat * | tbl | nroff -man -h | col -b"))))
|
||
(list "\\.\\(?:[0-9]\\|man\\)\\.g?z\\'"
|
||
'(let ((loc (Man-support-local-filenames)))
|
||
(cond ((eq loc 'man-db)
|
||
"man -l")
|
||
((eq loc 'man)
|
||
"man ./")
|
||
(t "gunzip -qc * | tbl | nroff -man -h | col -b")))
|
||
;; Optional decompression.
|
||
'(concat "gunzip" (if dired-guess-shell-gzip-quiet " -q")))
|
||
(list "\\.[0-9]\\.Z\\'"
|
||
'(let ((loc (Man-support-local-filenames)))
|
||
(cond ((eq loc 'man-db) "man -l")
|
||
((eq loc 'man) "man ./")
|
||
(t "zcat * | tbl | nroff -man -h | col -b")))
|
||
;; Optional conversion to gzip format.
|
||
'(concat "znew" (if dired-guess-shell-gzip-quiet " -q")
|
||
" " dired-guess-shell-znew-switches))
|
||
'("\\.pod\\'" "perldoc" "pod2man * | nroff -man")
|
||
|
||
'("\\.dvi\\'" "xdvi" "dvips") ; preview and printing
|
||
'("\\.au\\'" "play") ; play Sun audiofiles
|
||
'("\\.mpe?g\\'\\|\\.avi\\'" "xine -p")
|
||
'("\\.ogg\\'" "ogg123")
|
||
'("\\.mp3\\'" "mpg123")
|
||
'("\\.wav\\'" "play")
|
||
'("\\.uu\\'" "uudecode") ; for uudecoded files
|
||
'("\\.hqx\\'" "mcvert")
|
||
'("\\.sh\\'" "sh") ; execute shell scripts
|
||
'("\\.xbm\\'" "bitmap") ; view X11 bitmaps
|
||
'("\\.gp\\'" "gnuplot")
|
||
'("\\.p[bgpn]m\\'" "xloadimage")
|
||
'("\\.gif\\'" "xloadimage") ; view gif pictures
|
||
'("\\.tif\\'" "xloadimage")
|
||
'("\\.png\\'" "display") ; xloadimage 4.1 doesn't grok PNG
|
||
'("\\.jpe?g\\'" "xloadimage")
|
||
'("\\.fig\\'" "xfig") ; edit fig pictures
|
||
'("\\.out\\'" "xgraph") ; for plotting purposes.
|
||
'("\\.tex\\'" "latex" "tex")
|
||
'("\\.texi\\(nfo\\)?\\'" "makeinfo" "texi2dvi")
|
||
'("\\.pdf\\'" "xpdf")
|
||
'("\\.doc\\'" "antiword" "strings")
|
||
'("\\.rpm\\'" "rpm -qilp" "rpm -ivh")
|
||
'("\\.dia\\'" "dia")
|
||
'("\\.mgp\\'" "mgp")
|
||
|
||
;; Some other popular archivers.
|
||
(list "\\.zip\\'" "unzip" "unzip -l"
|
||
;; Extract files into a separate subdirectory
|
||
'(concat "unzip" (if dired-guess-shell-gzip-quiet " -q")
|
||
" -d " (file-name-sans-extension file)))
|
||
'("\\.zoo\\'" "zoo x//")
|
||
'("\\.lzh\\'" "lharc x")
|
||
'("\\.arc\\'" "arc x")
|
||
'("\\.shar\\'" "unshar")
|
||
'("\\.rar\\'" "unrar x")
|
||
'("\\.7z\\'" "7z x")
|
||
|
||
;; Compression.
|
||
(list "\\.g?z\\'" '(concat "gunzip" (if dired-guess-shell-gzip-quiet " -q")))
|
||
(list "\\.dz\\'" "dictunzip")
|
||
(list "\\.bz2\\'" "bunzip2")
|
||
(list "\\.xz\\'" "unxz")
|
||
(list "\\.Z\\'" "uncompress"
|
||
;; Optional conversion to gzip format.
|
||
'(concat "znew" (if dired-guess-shell-gzip-quiet " -q")
|
||
" " dired-guess-shell-znew-switches))
|
||
|
||
'("\\.sign?\\'" "gpg --verify"))
|
||
|
||
"Default alist used for shell command guessing.
|
||
See `dired-guess-shell-alist-user'.")
|
||
|
||
(defcustom dired-guess-shell-alist-user nil
|
||
"User-defined alist of rules for suggested commands.
|
||
These rules take precedence over the predefined rules in the variable
|
||
`dired-guess-shell-alist-default' (to which they are prepended).
|
||
|
||
Each element of this list looks like
|
||
|
||
(REGEXP COMMAND...)
|
||
|
||
where each COMMAND can either be a string or a Lisp expression that evaluates
|
||
to a string. If this expression needs to consult the name of the file for
|
||
which the shell commands are being requested, it can access that file name
|
||
as the variable `file'.
|
||
If several COMMANDs are given, the first one will be the default
|
||
and the rest will be added temporarily to the history and can be retrieved
|
||
with \\[previous-history-element] (M-p) .
|
||
|
||
The variable `dired-guess-shell-case-fold-search' controls whether
|
||
REGEXP is matched case-sensitively."
|
||
:group 'dired-x
|
||
:type '(alist :key-type regexp :value-type (repeat sexp)))
|
||
|
||
(defcustom dired-guess-shell-case-fold-search t
|
||
"If non-nil, `dired-guess-shell-alist-default' and
|
||
`dired-guess-shell-alist-user' are matched case-insensitively."
|
||
:group 'dired-x
|
||
:type 'boolean)
|
||
|
||
(defun dired-guess-default (files)
|
||
"Return a shell command, or a list of commands, appropriate for FILES.
|
||
See `dired-guess-shell-alist-user'."
|
||
|
||
(let* ((case-fold-search dired-guess-shell-case-fold-search)
|
||
;; Prepend the user's alist to the default alist.
|
||
(alist (append dired-guess-shell-alist-user
|
||
dired-guess-shell-alist-default))
|
||
(file (car files))
|
||
(flist (cdr files))
|
||
elt regexp cmds)
|
||
|
||
;; Find the first match in the alist for first file in FILES.
|
||
(while alist
|
||
(setq elt (car alist)
|
||
regexp (car elt)
|
||
alist (cdr alist))
|
||
(if (string-match-p regexp file)
|
||
(setq cmds (cdr elt)
|
||
alist nil)))
|
||
|
||
;; If more than one file, see if all of FILES match regular expression.
|
||
(while (and flist
|
||
(string-match-p regexp (car flist)))
|
||
(setq flist (cdr flist)))
|
||
|
||
;; If flist is still non-nil, then do not guess since this means that not
|
||
;; all the files in FILES were matched by the regexp.
|
||
(setq cmds (and (not flist) cmds))
|
||
|
||
;; Return commands or nil if flist is still non-nil.
|
||
;; Evaluate the commands in order that any logical testing will be done.
|
||
(if (cdr cmds)
|
||
(delete-dups (mapcar (lambda (cmd) (eval cmd `((file . ,file)))) cmds))
|
||
(eval (car cmds) `((file . ,file)))))) ; single command
|
||
|
||
(defun dired-guess-shell-command (prompt files)
|
||
"Ask user with PROMPT for a shell command, guessing a default from FILES."
|
||
(let ((default (dired-guess-default files))
|
||
default-list val)
|
||
(if (null default)
|
||
;; Nothing to guess
|
||
(read-shell-command prompt nil 'dired-shell-command-history)
|
||
(setq prompt (replace-regexp-in-string ": $" " " prompt))
|
||
(if (listp default)
|
||
;; More than one guess
|
||
(setq default-list default
|
||
default (car default)
|
||
prompt (concat
|
||
prompt
|
||
(format "{%d guesses} " (length default-list))))
|
||
;; Just one guess
|
||
(setq default-list (list default)))
|
||
;; Put the first guess in the prompt but not in the initial value.
|
||
(setq prompt (concat prompt (format "[%s]: " default)))
|
||
;; All guesses can be retrieved with M-n
|
||
(setq val (read-shell-command prompt nil
|
||
'dired-shell-command-history
|
||
default-list))
|
||
;; If we got a return, then return default.
|
||
(if (equal val "") default val))))
|
||
|
||
|
||
;;; RELATIVE SYMBOLIC LINKS.
|
||
|
||
(declare-function make-symbolic-link "fileio.c")
|
||
|
||
(defvar dired-keep-marker-relsymlink ?S
|
||
"See variable `dired-keep-marker-move'.")
|
||
|
||
(defun dired-make-relative-symlink (file1 file2 &optional ok-if-already-exists)
|
||
"Make a symbolic link (pointing to FILE1) in FILE2.
|
||
The link is relative (if possible), for example
|
||
|
||
\"/vol/tex/bin/foo\" \"/vol/local/bin/foo\"
|
||
|
||
results in
|
||
|
||
\"../../tex/bin/foo\" \"/vol/local/bin/foo\""
|
||
(interactive "FRelSymLink: \nFRelSymLink %s: \np")
|
||
(let (name1 name2 len1 len2 (index 0) sub)
|
||
(setq file1 (expand-file-name file1)
|
||
file2 (expand-file-name file2)
|
||
len1 (length file1)
|
||
len2 (length file2))
|
||
;; Find common initial file name components:
|
||
(let (next)
|
||
(while (and (setq next (string-match "/" file1 index))
|
||
(< (setq next (1+ next)) (min len1 len2))
|
||
;; For the comparison, both substrings must end in
|
||
;; `/', so NEXT is *one plus* the result of the
|
||
;; string-match.
|
||
;; E.g., consider the case of linking "/tmp/a/abc"
|
||
;; to "/tmp/abc" erroneously giving "/tmp/a" instead
|
||
;; of "/tmp/" as common initial component
|
||
(string-equal (substring file1 0 next)
|
||
(substring file2 0 next)))
|
||
(setq index next))
|
||
(setq name2 file2
|
||
sub (substring file1 0 index)
|
||
name1 (substring file1 index)))
|
||
(if (string-equal sub "/")
|
||
;; No common initial file name found
|
||
(setq name1 file1)
|
||
;; Else they have a common parent directory
|
||
(let ((tem (substring file2 index))
|
||
(start 0)
|
||
(count 0))
|
||
;; Count number of slashes we must compensate for ...
|
||
(while (setq start (string-match "/" tem start))
|
||
(setq count (1+ count)
|
||
start (1+ start)))
|
||
;; ... and prepend a "../" for each slash found:
|
||
(dotimes (_ count)
|
||
(setq name1 (concat "../" name1)))))
|
||
(make-symbolic-link
|
||
(directory-file-name name1) ; must not link to foo/
|
||
; (trailing slash!)
|
||
name2 ok-if-already-exists)))
|
||
|
||
(autoload 'dired-do-create-files "dired-aux")
|
||
|
||
;;;###autoload
|
||
(defun dired-do-relsymlink (&optional arg)
|
||
"Relative symlink all marked (or next ARG) files into a directory.
|
||
Otherwise make a relative symbolic link to the current file.
|
||
This creates relative symbolic links like
|
||
|
||
foo -> ../bar/foo
|
||
|
||
not absolute ones like
|
||
|
||
foo -> /ugly/file/name/that/may/change/any/day/bar/foo
|
||
|
||
For absolute symlinks, use \\[dired-do-symlink]."
|
||
(interactive "P")
|
||
(dired-do-create-files 'relsymlink #'dired-make-relative-symlink
|
||
"RelSymLink" arg dired-keep-marker-relsymlink))
|
||
|
||
(autoload 'dired-mark-read-regexp "dired-aux")
|
||
(autoload 'dired-do-create-files-regexp "dired-aux")
|
||
|
||
(defun dired-do-relsymlink-regexp (regexp newname &optional arg whole-name)
|
||
"RelSymlink all marked files containing REGEXP to NEWNAME.
|
||
See functions `dired-do-rename-regexp' and `dired-do-relsymlink'
|
||
for more info."
|
||
(interactive (dired-mark-read-regexp "RelSymLink"))
|
||
(dired-do-create-files-regexp
|
||
#'dired-make-relative-symlink
|
||
"RelSymLink" arg regexp newname whole-name dired-keep-marker-relsymlink))
|
||
|
||
|
||
;;; VISIT ALL MARKED FILES SIMULTANEOUSLY.
|
||
|
||
;; Brief Description:
|
||
;;;
|
||
;; `dired-do-find-marked-files' is bound to `F' by dired-x.el.
|
||
;;;
|
||
;; * Use `dired-get-marked-files' to collect the marked files in the current
|
||
;;; Dired Buffer into a list of filenames `FILE-LIST'.
|
||
;;;
|
||
;; * Pass FILE-LIST to `dired-simultaneous-find-file' all with
|
||
;;; `dired-do-find-marked-files''s prefix argument NOSELECT.
|
||
;;;
|
||
;; * `dired-simultaneous-find-file' runs through FILE-LIST decrementing the
|
||
;;; list each time.
|
||
;;;
|
||
;; * If NOSELECT is non-nil then just run `find-file-noselect' on each
|
||
;;; element of FILE-LIST.
|
||
;;;
|
||
;; * If NOSELECT is nil then calculate the `size' of the window for each file
|
||
;;; by dividing the `window-height' by length of FILE-LIST. Thus, `size' is
|
||
;;; cognizant of the window-configuration.
|
||
;;;
|
||
;; * If `size' is too small abort, otherwise run `find-file' on each element
|
||
;;; of FILE-LIST giving each a window of height `size'.
|
||
|
||
(defun dired-do-find-marked-files (&optional noselect)
|
||
"Find all marked files displaying all of them simultaneously.
|
||
With optional NOSELECT just find files but do not select them.
|
||
|
||
The current window is split across all files marked, as evenly as possible.
|
||
Remaining lines go to bottom-most window. The number of files that can be
|
||
displayed this way is restricted by the height of the current window and
|
||
`window-min-height'.
|
||
|
||
To keep Dired buffer displayed, type \\[split-window-below] first.
|
||
To display just marked files, type \\[delete-other-windows] first."
|
||
(interactive "P")
|
||
(dired-simultaneous-find-file (dired-get-marked-files nil nil nil nil t)
|
||
noselect))
|
||
|
||
(defun dired-simultaneous-find-file (file-list noselect)
|
||
"Visit all files in FILE-LIST and display them simultaneously.
|
||
The current window is split across all files in FILE-LIST, as evenly as
|
||
possible. Remaining lines go to the bottom-most window. The number of
|
||
files that can be displayed this way is restricted by the height of the
|
||
current window and the variable `window-min-height'. With non-nil
|
||
NOSELECT the files are merely found but not selected."
|
||
;; We don't make this function interactive because it is usually too clumsy
|
||
;; to specify FILE-LIST interactively unless via dired.
|
||
(let (size)
|
||
(if noselect
|
||
;; Do not select the buffer.
|
||
(find-file-noselect (car file-list))
|
||
;; We will have to select the buffer. Calculate and check window size.
|
||
(setq size (/ (window-height) (length file-list)))
|
||
(or (<= window-min-height size)
|
||
(error "Too many files to visit simultaneously. Try C-u prefix"))
|
||
(find-file (car file-list)))
|
||
;; Decrement.
|
||
(dolist (file (cdr file-list))
|
||
(if noselect
|
||
;; Do not select the buffer.
|
||
(find-file-noselect file)
|
||
;; Vertically split off a window of desired size. Upper window will
|
||
;; have SIZE lines. Select lower (larger) window. We split it again.
|
||
(select-window (split-window nil size))
|
||
(find-file file)))))
|
||
|
||
|
||
;;; MISCELLANEOUS COMMANDS.
|
||
|
||
;; Run man on files.
|
||
|
||
(declare-function Man-getpage-in-background "man" (topic))
|
||
|
||
(defvar manual-program) ; from man.el
|
||
|
||
(defun dired-man ()
|
||
"Run `man' on this file."
|
||
;; Used also to say: "Display old buffer if buffer name matches filename."
|
||
;; but I have no idea what that means.
|
||
(interactive)
|
||
(require 'man)
|
||
(let* ((file (dired-get-filename))
|
||
(manual-program (replace-regexp-in-string "\\*" "%s"
|
||
(dired-guess-shell-command
|
||
"Man command: " (list file)))))
|
||
(Man-getpage-in-background file)))
|
||
|
||
;; Run Info on files.
|
||
|
||
(defun dired-info ()
|
||
"Run `info' on this file."
|
||
(interactive)
|
||
(info (dired-get-filename)))
|
||
|
||
;; Run mail on mail folders.
|
||
|
||
(declare-function vm-visit-folder "ext:vm" (folder &optional read-only))
|
||
(defvar vm-folder-directory)
|
||
|
||
(defun dired-vm (&optional read-only)
|
||
"Run VM on this file.
|
||
With optional prefix argument, visits the folder read-only.
|
||
Otherwise obeys the value of `dired-vm-read-only-folders'."
|
||
(interactive "P")
|
||
(let ((dir (dired-current-directory))
|
||
(fil (dired-get-filename)))
|
||
(vm-visit-folder fil (or read-only
|
||
(eq t dired-vm-read-only-folders)
|
||
(and dired-vm-read-only-folders
|
||
(not (file-writable-p fil)))))
|
||
;; So that pressing `v' inside VM does prompt within current directory:
|
||
(set (make-local-variable 'vm-folder-directory) dir)))
|
||
|
||
(defun dired-rmail ()
|
||
"Run RMAIL on this file."
|
||
(interactive)
|
||
(rmail (dired-get-filename)))
|
||
|
||
(defun dired-do-run-mail ()
|
||
"Visit the current file as a mailbox, using VM or RMAIL.
|
||
Prompt for confirmation first; if the user says yes, call
|
||
`dired-vm' if `dired-bind-vm' is non-nil, `dired-rmail'
|
||
otherwise."
|
||
(interactive)
|
||
(let ((file (dired-get-filename t)))
|
||
(if dired-bind-vm
|
||
(if (y-or-n-p (format-message
|
||
"Visit `%s' as a mail folder with VM?" file))
|
||
(dired-vm))
|
||
;; Read mail folder using rmail.
|
||
(if (y-or-n-p (format-message
|
||
"Visit `%s' as a mailbox with RMAIL?" file))
|
||
(dired-rmail)))))
|
||
|
||
|
||
;;; MISCELLANEOUS INTERNAL FUNCTIONS.
|
||
|
||
;; This should be a builtin
|
||
(defun dired-buffer-more-recently-used-p (buffer1 buffer2)
|
||
"Return t if BUFFER1 is more recently used than BUFFER2.
|
||
Considers buffers closer to the car of `buffer-list' to be more recent."
|
||
(and (not (equal buffer1 buffer2))
|
||
(memq buffer1 (buffer-list))
|
||
(not (memq buffer1 (memq buffer2 (buffer-list))))))
|
||
|
||
|
||
;; Needed if ls -lh is supported and also for GNU ls -ls.
|
||
(defun dired-x--string-to-number (str)
|
||
"Like `string-to-number' but recognize a trailing unit prefix.
|
||
For example, 2K is expanded to 2048.0. The caller should make
|
||
sure that a trailing letter in STR is one of BKkMGTPEZY."
|
||
(let* ((val (string-to-number str))
|
||
(u (unless (zerop val)
|
||
(aref str (1- (length str))))))
|
||
(when (and u (> u ?9))
|
||
(when (= u ?k)
|
||
(setq u ?K))
|
||
(let ((units '(?B ?K ?M ?G ?T ?P ?E ?Z ?Y)))
|
||
(while (and units (/= (pop units) u))
|
||
(setq val (* 1024.0 val)))))
|
||
val))
|
||
|
||
(defun dired-mark-sexp (predicate &optional unflag-p)
|
||
"Mark files for which PREDICATE returns non-nil.
|
||
With a prefix arg, unmark or unflag those files instead.
|
||
|
||
PREDICATE is a lisp expression that can refer to the following symbols:
|
||
|
||
inode [integer] the inode of the file (only for ls -i output)
|
||
s [integer] the size of the file for ls -s output
|
||
(usually in blocks or, with -k, in KByte)
|
||
mode [string] file permission bits, e.g. \"-rw-r--r--\"
|
||
nlink [integer] number of links to file
|
||
uid [string] owner
|
||
gid [string] group (If the gid is not displayed by ls,
|
||
this will still be set (to the same as uid))
|
||
size [integer] file size in bytes
|
||
time [string] the time that ls displays, e.g. \"Feb 12 14:17\"
|
||
name [string] the name of the file
|
||
sym [string] if file is a symbolic link, the linked-to name, else \"\"
|
||
|
||
For example, use
|
||
|
||
(equal 0 size)
|
||
|
||
to mark all zero length files.
|
||
|
||
There's an ambiguity when a single integer not followed by a unit
|
||
prefix precedes the file mode: It is then parsed as inode number
|
||
and not as block size (this always works for GNU coreutils ls).
|
||
|
||
Another limitation is that the uid field is needed for the
|
||
function to work correctly. In particular, the field is not
|
||
present for some values of `ls-lisp-emulation'.
|
||
|
||
This function operates only on the buffer content and does not
|
||
refer at all to the underlying file system. Contrast this with
|
||
`find-dired', which might be preferable for the task at hand."
|
||
;; Using sym="" instead of nil avoids the trap of
|
||
;; (string-match "foo" sym) into which a user would soon fall.
|
||
;; Give `equal' instead of `=' in the example, as this works on
|
||
;; integers and strings.
|
||
(interactive
|
||
(list (read--expression
|
||
(format "%s if (lisp expr): "
|
||
(if current-prefix-arg
|
||
"UNmark"
|
||
"Mark")))
|
||
current-prefix-arg))
|
||
(message "%s" predicate)
|
||
(let ((dired-marker-char (if unflag-p ?\040 dired-marker-char))
|
||
inode s mode nlink uid gid size time name sym)
|
||
(dired-mark-if
|
||
(save-excursion
|
||
(and
|
||
;; Sets vars
|
||
;; inode s mode nlink uid gid size time name sym
|
||
|
||
;; according to current file line. Returns t for success, nil if
|
||
;; there is no file line. Upon success, all variables are set, either
|
||
;; to nil or the appropriate value, so they need not be initialized.
|
||
;; Moves point within the current line.
|
||
(dired-move-to-filename)
|
||
(let ((mode-len 10) ; length of mode string
|
||
;; like in dired.el, but with subexpressions \1=inode, \2=s:
|
||
;; GNU ls -hs suffixes the block count with a unit and
|
||
;; prints it as a float, FreeBSD does neither.
|
||
(dired-re-inode-size "\\=\\s *\\([0-9]+\\s +\\)?\
|
||
\\(?:\\([0-9]+\\(?:\\.[0-9]*\\)?[BkKMGTPEZY]?\\)? ?\\)"))
|
||
(beginning-of-line)
|
||
(forward-char 2)
|
||
(search-forward-regexp dired-re-inode-size nil t)
|
||
;; XXX Might be a size not followed by a unit prefix.
|
||
;; We could set s to inode if it were otherwise nil,
|
||
;; with a similar reasoning as below for setting gid to uid,
|
||
;; but it would be even more whimsical.
|
||
(setq inode (when (match-string 1)
|
||
(string-to-number (match-string 1))))
|
||
(setq s (when (match-string 2)
|
||
(dired-x--string-to-number (match-string 2))))
|
||
(setq mode (buffer-substring (point) (+ mode-len (point))))
|
||
(forward-char mode-len)
|
||
;; Skip any extended attributes marker ("." or "+").
|
||
(or (= (following-char) ?\s)
|
||
(forward-char 1))
|
||
(setq nlink (read (current-buffer)))
|
||
;; Karsten Wenger <kw@cis.uni-muenchen.de> fixed uid.
|
||
;; Another issue is that GNU ls -n right-justifies numerical
|
||
;; UIDs and GIDs, while FreeBSD left-justifies them, so
|
||
;; don't rely on a specific whitespace layout. Both of them
|
||
;; right-justify all other numbers, though.
|
||
;; XXX Return a number if the uid or gid seems to be
|
||
;; numerical?
|
||
(setq uid (buffer-substring (progn
|
||
(skip-chars-forward " \t")
|
||
(point))
|
||
(progn
|
||
(skip-chars-forward "^ \t")
|
||
(point))))
|
||
(dired-move-to-filename)
|
||
(save-excursion
|
||
(setq time
|
||
;; The regexp below tries to match from the last
|
||
;; digit of the size field through a space after the
|
||
;; date. Also, dates may have different formats
|
||
;; depending on file age, so the date column need
|
||
;; not be aligned to the right.
|
||
(buffer-substring (save-excursion
|
||
(skip-chars-backward " \t")
|
||
(point))
|
||
(progn
|
||
(re-search-backward
|
||
directory-listing-before-filename-regexp)
|
||
(skip-chars-forward "^ \t")
|
||
(1+ (point))))
|
||
size (dired-x--string-to-number
|
||
;; We know that there's some kind of number
|
||
;; before point because the regexp search
|
||
;; above succeeded. I don't think it's worth
|
||
;; doing an extra check for leading garbage.
|
||
(buffer-substring (point)
|
||
(progn
|
||
(skip-chars-backward "^ \t")
|
||
(point))))
|
||
;; If no gid is displayed, gid will be set to uid
|
||
;; but the user will then not reference it anyway in
|
||
;; PREDICATE.
|
||
gid (buffer-substring (progn
|
||
(skip-chars-backward " \t")
|
||
(point))
|
||
(progn
|
||
(skip-chars-backward "^ \t")
|
||
(point)))))
|
||
(setq name (buffer-substring (point)
|
||
(or
|
||
(dired-move-to-end-of-filename t)
|
||
(point)))
|
||
sym (if (looking-at " -> ")
|
||
(buffer-substring (progn (forward-char 4) (point))
|
||
(line-end-position))
|
||
""))
|
||
t)
|
||
(eval predicate
|
||
`((inode . ,inode)
|
||
(s . ,s)
|
||
(mode . ,mode)
|
||
(nlink . ,nlink)
|
||
(uid . ,uid)
|
||
(gid . ,gid)
|
||
(size . ,size)
|
||
(time . ,time)
|
||
(name . ,name)
|
||
(sym . ,sym)))))
|
||
(format "'%s file" predicate))))
|
||
|
||
|
||
;;; FIND FILE AT POINT.
|
||
|
||
(defcustom dired-x-hands-off-my-keys t
|
||
"Non-nil means don't remap `find-file' to `dired-x-find-file'.
|
||
Similarly for `find-file-other-window' and `dired-x-find-file-other-window'.
|
||
If you change this variable without using \\[customize] after `dired-x.el'
|
||
is loaded then call \\[dired-x-bind-find-file]."
|
||
:type 'boolean
|
||
:initialize 'custom-initialize-default
|
||
:set (lambda (symbol value)
|
||
(set symbol value)
|
||
(dired-x-bind-find-file))
|
||
:group 'dired-x)
|
||
|
||
(defun dired-x-bind-find-file ()
|
||
"Bind `dired-x-find-file' in place of `find-file' (or vice-versa).
|
||
Similarly for `dired-x-find-file-other-window' and `find-file-other-window'.
|
||
Binding direction based on `dired-x-hands-off-my-keys'."
|
||
(interactive)
|
||
(if (called-interactively-p 'interactive)
|
||
(setq dired-x-hands-off-my-keys
|
||
(not (y-or-n-p "Bind dired-x-find-file over find-file? "))))
|
||
(unless dired-x-hands-off-my-keys
|
||
(define-key (current-global-map) [remap find-file]
|
||
'dired-x-find-file)
|
||
(define-key (current-global-map) [remap find-file-other-window]
|
||
'dired-x-find-file-other-window)))
|
||
|
||
;; Now call it so binding is correct. This could go in the :initialize
|
||
;; slot, but then dired-x-bind-find-file has to be defined before the
|
||
;; defcustom, and we get free variable warnings.
|
||
(dired-x-bind-find-file)
|
||
|
||
(defun dired-x-find-file (filename)
|
||
"Edit file FILENAME.
|
||
Like `find-file', except that when called interactively with a
|
||
prefix argument, it offers the filename near point as a default."
|
||
(interactive (list (dired-x-read-filename-at-point "Find file: ")))
|
||
(find-file filename))
|
||
|
||
(defun dired-x-find-file-other-window (filename)
|
||
"Edit file FILENAME, in another window.
|
||
Like `find-file-other-window', except that when called interactively with
|
||
a prefix argument, when it offers the filename near point as a default."
|
||
(interactive (list (dired-x-read-filename-at-point "Find file: ")))
|
||
(find-file-other-window filename))
|
||
|
||
;;; Internal functions.
|
||
|
||
;; Fixme: This should probably use `thing-at-point'. -- fx
|
||
(defun dired-filename-at-point ()
|
||
"Return the filename closest to point, expanded.
|
||
Point should be in or after a filename."
|
||
(save-excursion
|
||
;; First see if just past a filename.
|
||
(or (eobp) ; why?
|
||
(when (looking-at-p "[] \t\n[{}()]") ; whitespace or some parens
|
||
(skip-chars-backward " \n\t\r({[]})")
|
||
(or (bobp) (backward-char 1))))
|
||
(let ((filename-chars "-.[:alnum:]_/:$+@")
|
||
start prefix)
|
||
(if (looking-at-p (format "[%s]" filename-chars))
|
||
(progn
|
||
(skip-chars-backward filename-chars)
|
||
(setq start (point)
|
||
prefix
|
||
;; This is something to do with ange-ftp filenames.
|
||
;; It convert foo@bar to /foo@bar.
|
||
;; But when does the former occur in dired buffers?
|
||
(and (string-match-p
|
||
"^\\w+@"
|
||
(buffer-substring start (line-end-position)))
|
||
"/"))
|
||
(if (string-match-p "[/~]" (char-to-string (preceding-char)))
|
||
(setq start (1- start)))
|
||
(skip-chars-forward filename-chars))
|
||
(error "No file found around point!"))
|
||
;; Return string.
|
||
(expand-file-name (concat prefix (buffer-substring start (point)))))))
|
||
|
||
(defun dired-x-read-filename-at-point (prompt)
|
||
"Return filename prompting with PROMPT with completion.
|
||
If `current-prefix-arg' is non-nil, uses name at point as guess."
|
||
(if current-prefix-arg
|
||
(let ((guess (dired-filename-at-point)))
|
||
(read-file-name prompt
|
||
(file-name-directory guess)
|
||
guess
|
||
nil (file-name-nondirectory guess)))
|
||
(read-file-name prompt default-directory)))
|
||
|
||
(define-obsolete-function-alias 'read-filename-at-point
|
||
'dired-x-read-filename-at-point "24.1") ; is this even needed?
|
||
|
||
;;; BUG REPORTS
|
||
|
||
(define-obsolete-function-alias 'dired-x-submit-report 'report-emacs-bug "24.1")
|
||
|
||
|
||
;; As Barry Warsaw would say: "This might be useful..."
|
||
(provide 'dired-x)
|
||
|
||
;; Local Variables:
|
||
;; generated-autoload-file: "dired-loaddefs.el"
|
||
;; End:
|
||
|
||
;;; dired-x.el ends here
|