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
|
;;; version.el --- record version number of Emacs
;; Copyright (C) 1985, 1992, 1994-1995, 1999-2015 Free Software
;; Foundation, Inc.
;; Maintainer: emacs-devel@gnu.org
;; Keywords: internal
;; Package: emacs
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(defconst emacs-major-version
(progn (string-match "^[0-9]+" emacs-version)
(string-to-number (match-string 0 emacs-version)))
"Major version number of this version of Emacs.
This variable first existed in version 19.23.")
(defconst emacs-minor-version
(progn (string-match "^[0-9]+\\.\\([0-9]+\\)" emacs-version)
(string-to-number (match-string 1 emacs-version)))
"Minor version number of this version of Emacs.
This variable first existed in version 19.23.")
(defconst emacs-build-time (current-time)
"Time at which Emacs was dumped out.")
;; I think this should be obsoleted/removed. It's just one more meaningless
;; difference between different builds. It's usually not even an fqdn.
(defconst emacs-build-system (system-name)
"Name of the system on which Emacs was built.")
(defvar motif-version-string)
(defvar gtk-version-string)
(defvar ns-version-string)
(defvar cairo-version-string)
(defun emacs-version (&optional here)
"Return string describing the version of Emacs that is running.
If optional argument HERE is non-nil, insert string at point.
Don't use this function in programs to choose actions according
to the system configuration; look at `system-configuration' instead."
(interactive "P")
(let ((version-string
(format (if (not (called-interactively-p 'interactive))
"GNU Emacs %s (%s%s%s%s)\n of %s"
"GNU Emacs %s (%s%s%s%s) of %s")
emacs-version
system-configuration
(cond ((featurep 'motif)
(concat ", " (substring motif-version-string 4)))
((featurep 'gtk)
(concat ", GTK+ Version " gtk-version-string))
((featurep 'x-toolkit) ", X toolkit")
((featurep 'ns)
(format ", NS %s" ns-version-string))
(t ""))
(if (featurep 'cairo)
(format ", cairo version %s" cairo-version-string)
"")
(if (and (boundp 'x-toolkit-scroll-bars)
(memq x-toolkit-scroll-bars '(xaw xaw3d)))
(format ", %s scroll bars"
(capitalize (symbol-name x-toolkit-scroll-bars)))
"")
(format-time-string "%Y-%m-%d" emacs-build-time))))
(if here
(insert version-string)
(if (called-interactively-p 'interactive)
(message "%s" version-string)
version-string))))
;; We hope that this alias is easier for people to find.
(defalias 'version 'emacs-version)
;; Set during dumping, this is a defvar so that it can be setq'd.
(defvar emacs-repository-version nil
"String giving the repository revision from which this Emacs was built.
Value is nil if Emacs was not built from a repository checkout,
or if we could not determine the revision.")
(define-obsolete-variable-alias 'emacs-bzr-version
'emacs-repository-version "24.4")
(define-obsolete-function-alias 'emacs-bzr-get-version
'emacs-repository-get-version "24.4")
(defun emacs-repository-version-git (dir)
"Ask git itself for the version information for directory DIR."
(message "Waiting for git...")
(with-temp-buffer
(let ((default-directory (file-name-as-directory dir)))
(and (eq 0
(with-demoted-errors "Error running git rev-parse: %S"
(call-process "git" nil '(t nil) nil "rev-parse" "HEAD")))
(progn (goto-char (point-min))
(looking-at "[0-9a-fA-F]\\{40\\}"))
(match-string 0)))))
(defun emacs-repository--version-git-1 (file)
"Internal subroutine of `emacs-repository-get-version'."
(when (file-readable-p file)
(erase-buffer)
(insert-file-contents file)
(cond ((looking-at "[0-9a-fA-F]\\{40\\}")
(match-string 0))
((looking-at "ref: \\(.*\\)")
(emacs-repository--version-git-1
(expand-file-name (match-string 1)
(file-name-directory file)))))))
(defun emacs-repository-get-version (&optional dir external)
"Try to return as a string the repository revision of the Emacs sources.
The format of the returned string is dependent on the VCS in use.
Value is nil if the sources do not seem to be under version
control, or if we could not determine the revision. Note that
this reports on the current state of the sources, which may not
correspond to the running Emacs.
Optional argument DIR is a directory to use instead of `source-directory'.
Optional argument EXTERNAL non-nil means to just ask the VCS itself,
if the sources appear to be under version control. Otherwise only ask
the VCS if we cannot find any information ourselves."
(or dir (setq dir source-directory))
(when (file-directory-p (expand-file-name ".git" dir))
(if external
(emacs-repository-version-git dir)
(or (let ((files '("HEAD" "refs/heads/master"))
file rev)
(with-temp-buffer
(while (and (not rev)
(setq file (car files)))
(setq file (expand-file-name (format ".git/%s" file) dir)
files (cdr files)
rev (emacs-repository--version-git-1 file))))
rev)
;; AFAICS this doesn't work during dumping (bug#20799).
(emacs-repository-version-git dir)))))
;; We put version info into the executable in the form that `ident' uses.
(purecopy (concat "\n$Id: " (subst-char-in-string ?\n ?\s (emacs-version))
" $\n"))
;;; version.el ends here
|
