X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/8f50130c565eaf0ad7c49e4ad044c3291ecdfa71..5ab767b8dcea50b4d02c3910d19c223a5402f99d:/lisp/version.el?ds=sidebyside

diff --git a/lisp/version.el b/lisp/version.el
index aa4e22469c..1837cbf0a8 100644
--- a/lisp/version.el
+++ b/lisp/version.el
@@ -1,9 +1,9 @@
 ;;; version.el --- record version number of Emacs
 
-;; Copyright (C) 1985, 1992, 1994-1995, 1999-2011
-;;   Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1992, 1994-1995, 1999-2015 Free Software
+;; Foundation, Inc.
 
-;; Maintainer: FSF
+;; Maintainer: emacs-devel@gnu.org
 ;; Keywords: internal
 ;; Package: emacs
 
@@ -24,27 +24,32 @@
 
 ;;; Commentary:
 
-;; This file is loaded uncompiled when dumping Emacs.
-;; Doc-strings should adhere to the conventions of make-docfile.
-
 ;;; 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.
+(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.
+(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.")
+(defconst emacs-build-time (current-time)
+  "Time at which Emacs was dumped out.")
+
+(defconst emacs-build-system (system-name)
+  "Name of the system on which Emacs was built.")
 
-(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)
 
-(defun emacs-version (&optional here) "\
-Return string describing the version of Emacs that is running.
+(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."
@@ -79,14 +84,44 @@ to the system configuration; look at `system-configuration' instead."
 ;; 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-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 is ignored and is
+retained for compatibility."
+  (or dir (setq dir source-directory))
+  (cond ((file-directory-p (expand-file-name ".git" dir))
+	 (message "Waiting for git...")
+	 (with-temp-buffer
+	   (let ((default-directory (file-name-as-directory dir)))
+	     (and (eq 0
+		      (condition-case nil
+			  (call-process "git" nil '(t nil) nil "rev-parse"
+					"HEAD")
+			(error nil)))
+		  (not (zerop (buffer-size)))
+		  (replace-regexp-in-string "\n" "" (buffer-string))))))))
+
 ;; We put version info into the executable in the form that `ident' uses.
-(or (eq system-type 'windows-nt)
-    (purecopy (concat "\n$Id: " (subst-char-in-string ?\n ?\s (emacs-version))
-		      " $\n")))
-
-;; Local Variables:
-;; version-control: never
-;; no-byte-compile: t
-;; End:
+(purecopy (concat "\n$Id: " (subst-char-in-string ?\n ?\s (emacs-version))
+		  " $\n"))
 
 ;;; version.el ends here