blob: d8a68806ec2d7a1616e5024e29150ceb629b965c (
plain)
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
|
;;; Consfigurator -- Lisp declarative configuration management system
;;; Copyright (C) 2020-2021 Sean Whitton <spwhitton@spwhitton.name>
;;; This file 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, or (at your option)
;;; any later version.
;;; This file 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 this program. If not, see <http://www.gnu.org/licenses/>.
(in-package :consfigurator.connection.local)
(named-readtables:in-readtable :consfigurator)
(defmethod establish-connection ((type (eql :local)) host &key)
(make-instance 'local-connection))
(defclass local-connection (lisp-connection)
()
(:documentation
"Applying properties to the machine Lisp is running on, as Lisp's uid."))
(defmethod connection-run ((c local-connection) cmd (s stream))
;; see https://gitlab.common-lisp.net/asdf/asdf/-/issues/59
(call-next-method c cmd `(,s :element-type ,(stream-element-type s))))
(defmethod connection-run ((c local-connection) cmd (s string))
(call-next-method c cmd (make-string-input-stream s)))
(defmethod connection-run ((connection local-connection) shell-cmd input)
(multiple-value-bind (output _ exit-code)
;; call sh(1) so we know we'll get POSIX
(run-program `("sh" "-c" ,shell-cmd)
:input input :output :string
:error-output :output :ignore-error-status t)
(declare (ignore _))
(values output exit-code)))
(defmethod connection-read-file ((connection local-connection) path)
(read-file-string path))
(defmethod connection-read-and-remove-file ((connection local-connection) path)
(prog1 (read-file-string path) (delete-file path)))
(defmethod connection-write-file ((connection local-connection)
path
content
mode)
;; we cannot use UIOP:WITH-TEMPORARY-FILE etc., because those do not ensure
;; the file is only readable by us, and we might be writing a secret key
(with-remote-temporary-file
(temp :connection connection
:directory (pathname-directory-pathname path))
(nix:chmod temp mode)
(etypecase content
(string
(with-open-file (stream temp :direction :output :if-exists :supersede)
(write-string content stream)))
(stream
(let ((type (stream-element-type content)))
(with-open-file (stream temp :direction :output
:if-exists :supersede
:element-type type)
(copy-stream-to-stream content stream :element-type type)))))
;; TEMP's pathname will always have a PATHNAME-TYPE which is the random
;; string of characters suffixed to make the filename unique. If PATH
;; doesn't have a file extension then the merging behaviour of RENAME-FILE
;; will add the random suffix as the file type of the rename destination.
;; So we make two new pathnames.
(flet ((detype-pathname (pn)
(make-pathname
:defaults uiop:*nil-pathname* :type :unspecific
:name (pathname-file pn) :directory (pathname-directory pn))))
(rename-file-overwriting-target
(detype-pathname temp) (detype-pathname path)))))
(defmethod connection-connattr
((connection local-connection) (k (eql :XDG_CACHE_HOME)))
(uiop:xdg-cache-home))
|
