(authors-obsolete-file-p): New function.

(authors-obsolete-files-regexps): New variable.
(authors-add): Don't record changes in obsolete files.

2 files changed, 34 insertions, 6 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 3d6280a7c49..c897e57567f 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,9 @@
+2000-09-30  Gerd Moellmann  <gerd@gnu.org>
+
+        * emacs-lisp/authors.el (authors-obsolete-file-p): New function.
+        (authors-obsolete-files-regexps): New variable.
+        (authors-add): Don't record changes in obsolete files.
+
 2000-09-29  Stefan Monnier  <monnier@cs.yale.edu>
 
         * autoinsert.el (auto-insert-mode): Use define-minor-mode.
diff --git a/lisp/emacs-lisp/authors.el b/lisp/emacs-lisp/authors.el
index 7ff37ca9de9..0f2c2d2db0d 100644
--- a/lisp/emacs-lisp/authors.el
+++ b/lisp/emacs-lisp/authors.el
@@ -87,17 +87,39 @@ matches REGEXP, use ALIAS instead.  The special alias \"ignore\" means
 ignore that author.")
 
 
+(defvar authors-obsolete-files-regexps
+  '("vc-\\*\\.el$"
+    "spec.txt$"
+    "vc-\\(rcs\\|cvs\\|sccs\\)-hooks\\.el$")
+  "List of regexps matching obsolete files.
+Changes to files matching one of the regexps in this list are not
+listed.")
+
+
+(defun authors-obsolete-file-p (file)
+  "Return non-nil if FILE is obsolete.
+FILE is considered obsolete if it matches on of the regular expressions
+from `authors-obsolete-files-regexps'."
+  (let (obsolete-p
+        (regexps authors-obsolete-files-regexps))
+    (while (and regexps (not obsolete-p))
+      (setq obsolete-p (string-match (car regexps) file)
+            regexps (cdr regexps)))
+    obsolete-p))
+
+
 (defun authors-add (author file action table)
   "Record that AUTHOR worked on FILE.
 ACTION is a keyword symbol describing what he did.  Record file,
 author and what he did in hash table TABLE.  See the description of
 `authors-scan-change-log' for the structure of the hash table."
-  (let* ((value (gethash author table))
-         (entry (assoc file value)))
-    (if (null entry)
-        (puthash author (cons (list file action) value) table)
-      (unless (memq action entry)
-        (nconc entry (list action))))))
+  (unless (authors-obsolete-file-p file)
+    (let* ((value (gethash author table))
+           (entry (assoc file value)))
+      (if (null entry)
+          (puthash author (cons (list file action) value) table)
+        (unless (memq action entry)
+          (nconc entry (list action)))))))
 
 
 (defun authors-process-lines (program &rest args)