1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
;;; tramp-integration.el --- Tramp integration into other packages -*- lexical-binding:t -*-
;; Copyright (C) 2019 Free Software Foundation, Inc.
;; Author: Michael Albinus <michael.albinus@gmx.de>
;; Keywords: comm, processes
;; Package: tramp
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This assembles all integration of Tramp with other packages.
;;; Code:
(require 'tramp-compat)
;; Pacify byte-compiler.
(require 'cl-lib)
(declare-function recentf-cleanup "recentf")
(declare-function tramp-dissect-file-name "tramp")
(declare-function tramp-file-name-equal-p "tramp")
(declare-function tramp-tramp-file-p "tramp")
(defvar eshell-path-env)
(defvar recentf-exclude)
(defvar tramp-current-connection)
(defvar tramp-postfix-host-format)
;;; Fontification of `read-file-name':
(defvar tramp-rfn-eshadow-overlay)
(make-variable-buffer-local 'tramp-rfn-eshadow-overlay)
(defun tramp-rfn-eshadow-setup-minibuffer ()
"Set up a minibuffer for `file-name-shadow-mode'.
Adds another overlay hiding filename parts according to Tramp's
special handling of `substitute-in-file-name'."
(when minibuffer-completing-file-name
(setq tramp-rfn-eshadow-overlay
(make-overlay (minibuffer-prompt-end) (minibuffer-prompt-end)))
;; Copy rfn-eshadow-overlay properties.
(let ((props (overlay-properties rfn-eshadow-overlay)))
(while props
;; The `field' property prevents correct minibuffer
;; completion; we exclude it.
(if (not (eq (car props) 'field))
(overlay-put tramp-rfn-eshadow-overlay (pop props) (pop props))
(pop props) (pop props))))))
(add-hook 'rfn-eshadow-setup-minibuffer-hook
#'tramp-rfn-eshadow-setup-minibuffer)
(add-hook 'tramp-unload-hook
(lambda ()
(remove-hook 'rfn-eshadow-setup-minibuffer-hook
#'tramp-rfn-eshadow-setup-minibuffer)))
(defun tramp-rfn-eshadow-update-overlay-regexp ()
(format "[^%s/~]*\\(/\\|~\\)" tramp-postfix-host-format))
;; Package rfn-eshadow is preloaded in Emacs, but for some reason,
;; it only did (defvar rfn-eshadow-overlay) without giving it a global
;; value, so it was only declared as dynamically-scoped within the
;; rfn-eshadow.el file. This is now fixed in Emacs>26.1 but we still need
;; this defvar here for older releases.
(defvar rfn-eshadow-overlay)
(defun tramp-rfn-eshadow-update-overlay ()
"Update `rfn-eshadow-overlay' to cover shadowed part of minibuffer input.
This is intended to be used as a minibuffer `post-command-hook' for
`file-name-shadow-mode'; the minibuffer should have already
been set up by `rfn-eshadow-setup-minibuffer'."
;; In remote files name, there is a shadowing just for the local part.
(ignore-errors
(let ((end (or (overlay-end rfn-eshadow-overlay)
(minibuffer-prompt-end)))
;; We do not want to send any remote command.
(non-essential t))
(when (tramp-tramp-file-p (buffer-substring end (point-max)))
(save-excursion
(save-restriction
(narrow-to-region
(1+ (or (string-match-p
(tramp-rfn-eshadow-update-overlay-regexp)
(buffer-string) end)
end))
(point-max))
(let ((rfn-eshadow-overlay tramp-rfn-eshadow-overlay)
(rfn-eshadow-update-overlay-hook nil)
file-name-handler-alist)
(move-overlay rfn-eshadow-overlay (point-max) (point-max))
(rfn-eshadow-update-overlay))))))))
(add-hook 'rfn-eshadow-update-overlay-hook
#'tramp-rfn-eshadow-update-overlay)
(add-hook 'tramp-unload-hook
(lambda ()
(remove-hook 'rfn-eshadow-update-overlay-hook
#'tramp-rfn-eshadow-update-overlay)))
;;; Integration of eshell.el:
;; eshell.el keeps the path in `eshell-path-env'. We must change it
;; when `default-directory' points to another host.
(defun tramp-eshell-directory-change ()
"Set `eshell-path-env' to $PATH of the host related to `default-directory'."
;; Remove last element of `(exec-path)', which is `exec-directory'.
;; Use `path-separator' as it does eshell.
(setq eshell-path-env
(mapconcat
#'identity (butlast (tramp-compat-exec-path)) path-separator)))
(eval-after-load "esh-util"
'(progn
(add-hook 'eshell-mode-hook
#'tramp-eshell-directory-change)
(add-hook 'eshell-directory-change-hook
#'tramp-eshell-directory-change)
(add-hook 'tramp-integration-unload-hook
(lambda ()
(remove-hook 'eshell-mode-hook
#'tramp-eshell-directory-change)
(remove-hook 'eshell-directory-change-hook
#'tramp-eshell-directory-change)))))
;;; Integration of recentf.el:
(defun tramp-recentf-exclude-predicate (name)
"Predicate to exclude a remote file name from recentf.
NAME must be equal to `tramp-current-connection'."
(when (file-remote-p name)
(tramp-file-name-equal-p
(tramp-dissect-file-name name) (car tramp-current-connection))))
(defun tramp-recentf-cleanup (vec)
"Remove all file names related to VEC from recentf."
(when (bound-and-true-p recentf-list)
(let ((tramp-current-connection `(,vec))
(recentf-exclude '(tramp-recentf-exclude-predicate)))
(recentf-cleanup))))
(defun tramp-recentf-cleanup-all ()
"Remove all remote file names from recentf."
(when (bound-and-true-p recentf-list)
(let ((recentf-exclude '(file-remote-p)))
(recentf-cleanup))))
(eval-after-load "recentf"
'(progn
(add-hook 'tramp-cleanup-connection-hook
#'tramp-recentf-cleanup)
(add-hook 'tramp-cleanup-all-connections-hook
#'tramp-recentf-cleanup-all)
(add-hook 'tramp-integration-unload-hook
(lambda ()
(remove-hook 'tramp-cleanup-connection-hook
#'tramp-recentf-cleanup)
(remove-hook 'tramp-cleanup-all-connections-hook
#'tramp-recentf-cleanup-all)))))
;;; Default connection-local variables for Tramp:
(defconst tramp-connection-local-default-profile
'((shell-file-name . "/bin/sh")
(shell-command-switch . "-c"))
"Default connection-local variables for remote connections.")
;; `connection-local-set-profile-variables' and
;; `connection-local-set-profiles' exists since Emacs 26.1.
(eval-after-load "shell"
'(progn
(tramp-compat-funcall
'connection-local-set-profile-variables
'tramp-connection-local-default-profile
tramp-connection-local-default-profile)
(tramp-compat-funcall
'connection-local-set-profiles
`(:application tramp)
'tramp-connection-local-default-profile)))
(add-hook 'tramp-unload-hook
(lambda () (unload-feature 'tramp-integration 'force)))
(provide 'tramp-integration)
;;; tramp-integration.el ends here
|
