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-rw-r--r--contrib/doasedit.el62
-rw-r--r--contrib/doasedit.vim42
2 files changed, 104 insertions, 0 deletions
diff --git a/contrib/doasedit.el b/contrib/doasedit.el
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+++ b/contrib/doasedit.el
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+;;; doasedit.el --- Automatic doasedit major-mode detection -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2026 Thomas Voss
+
+;; Author: Thomas Voss <mail@thomasvoss.com>
+;; Maintainer: Thomas Voss <mail@thomasvoss.com>
+;; URL: https://git.thomasvoss.com/doasutils
+;; Package-Version: 1.0.0
+;; Package-Requires: ((emacs "24.4"))
+;; Keywords: tools, convenience, files
+
+;; This file is NOT part of GNU Emacs.
+
+;;; License:
+;;
+;; Permission to use, copy, modify, and distribute this software for any
+;; purpose with or without fee is hereby granted, provided that the above
+;; copyright notice and this permission notice appear in all copies.
+;;
+;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+;; DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+;; OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+;; TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+;; PERFORMANCE OF THIS SOFTWARE.
+;;; Commentary:
+;;
+;; This package provides `global-doasedit-mode', a minor-mode that
+;; ensures that the correct major-mode is set in the current buffer when
+;; editing files via the `doasedit' command-line utility.
+
+;;; Code:
+
+(defgroup doasedit nil
+ "Automatic major-mode detection when editing files via doasedit."
+ :group 'tools)
+
+(defun doasedit--setup-buffer ()
+ (let* ((tmpdir (or (getenv "TMPDIR") "/tmp"))
+ (regexp (expand-file-name "\\`doasedit\\.")))
+ (when (and buffer-file-name (string-match-p regexp buffer-file-name))
+ (if-let ((target-file (getenv "DOASEDIT_EDITING")))
+ (let ((buffer-file-name target-file))
+ (set-auto-mode)
+ (rename-buffer (format "*doasedit: %s*" target-file) :unique))
+ (error "`DOASEDIT_EDITING' is not set.")))))
+
+;;;###autoload
+(define-minor-mode global-doasedit-mode
+ "Global minor-mode to automatically set correct major-mode in the
+current buffer when editing a root-protected file via the doasedit
+command-line utility."
+ :global t
+ :lighter nil
+ (if global-doasedit-mode
+ (add-hook 'find-file-hook #'doasedit--setup-buffer)
+ (remove-hook 'find-file-hook #'doasedit--setup-buffer)))
+
+(provide 'doasedit)
+;;; doasedit.el ends here
diff --git a/contrib/doasedit.vim b/contrib/doasedit.vim
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+" ==============================================================================
+" File: doasedit.vim
+" Description: Automatic filetype detection for doasedit
+" Author: Thomas Voss <mail@thomasvoss.com>
+" URL: https://git.thomasvoss.com/doasutils
+" License: BSD-2-Clause
+" ==============================================================================
+"
+" Permission to use, copy, modify, and distribute this software for any
+" purpose with or without fee is hereby granted, provided that the above
+" copyright notice and this permission notice appear in all copies.
+"
+" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+" WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+" WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+" AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+" DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+" OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+" TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+" PERFORMANCE OF THIS SOFTWARE.
+" ==============================================================================
+
+if exists('g:loaded_doasedit_ft')
+ finish
+endif
+let g:loaded_doasedit_ft = 1
+
+let s:tmpdir = empty($TMPDIR) ? '/tmp' : $TMPDIR
+let s:tmpdir = substitute(s:tmpdir, '/\+$', '', '')
+let s:pattern = escape(s:tmpdir . '/doasedit.*', ' ')
+
+augroup doasedit_filetype
+ autocmd!
+ execute 'autocmd BufNewFile,BufRead ' . s:pattern . ' call s:SetFiletype()'
+augroup END
+
+function! s:SetFiletype()
+ if empty($DOASEDIT_EDITING)
+ return
+ endif
+ execute 'doautocmd filetypedetect BufRead ' . fnameescape($DOASEDIT_EDITING)
+endfunction