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;;; init-tramp.el --- configure tramp -*- lexical-binding:t -*-
;;; Commentary:
;;; Code:
(defun mpolden/sudo-file-name (filename)
"Add a sudo-like TRAMP method to FILENAME.
If FILENAME already contains a sudo-like method, do nothing. If
FILENAME is accessed over SSH, replace \"/ssh:\" with
\"/sudo:\" or \"/doas:\". Otherwise, assume FILENAME is a local
path and prefix it with \"/sudo::\" or \"/doas::\"."
;; sudo:remote-host works because of the special tramp-default-proxies-alist
;; configuration below
(let* ((splitname (split-string filename ":"))
(method (car splitname)))
(if (member method '("/sudo" "/doas"))
filename
(let* ((is-ssh (equal method "/ssh"))
(sudo-method (concat (if (executable-find "doas" t) "/doas" "/sudo")
(if is-ssh "" ":")))
(components (if is-ssh (cdr splitname) splitname)))
(mapconcat 'identity (cons sudo-method components) ":")))))
(defun mpolden/sudo-find-file (&optional arg)
"Find file and open it with sudo.
With a prefix ARG prompt edit currently visited file using sudo."
(interactive "P")
(if arg
(find-alternate-file (mpolden/sudo-file-name buffer-file-name))
(find-file (mpolden/sudo-file-name (read-file-name "Find file with sudo: ")))))
(defun mpolden/sudo-current-file ()
"Open current file with sudo."
(interactive)
(mpolden/sudo-find-file t))
(use-package tramp
:bind
(("C-x +" . mpolden/sudo-find-file)
("C-x !" . mpolden/sudo-current-file))
:config
;; make sudo:remote-host work as expected
(add-to-list 'tramp-default-proxies-alist '(nil "\\`root\\'" "/ssh:%h:"))
(add-to-list 'tramp-default-proxies-alist
'((regexp-quote (system-name)) nil nil))
;; use path configured by remote host
(add-to-list 'tramp-remote-path 'tramp-own-remote-path))
(provide 'init-tramp)
;;; init-tramp.el ends here
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