From 76ef237e7a98f99cb874a075067c99ad37b08bb7 Mon Sep 17 00:00:00 2001
From: Chris Hanson <org/chris-hanson/cph>
Date: Mon, 9 Dec 2002 06:04:58 +0000
Subject: [PATCH] Implement editor variable vc-cvs-stay-local which tells VC to
 trust the CVS timestamps when trying to see whether a file has been modified,
 rather than querying the repository.

---
 v7/src/edwin/edwin.pkg |  3 ++-
 v7/src/edwin/vc.scm    | 36 ++++++++++++++++++++++++------------
 2 files changed, 26 insertions(+), 13 deletions(-)

diff --git a/v7/src/edwin/edwin.pkg b/v7/src/edwin/edwin.pkg
index 72cc4ec60..82a8e2148 100644
--- a/v7/src/edwin/edwin.pkg
+++ b/v7/src/edwin/edwin.pkg
@@ -1,6 +1,6 @@
 #| -*-Scheme-*-
 
-$Id: edwin.pkg,v 1.282 2002/11/20 19:45:59 cph Exp $
+$Id: edwin.pkg,v 1.283 2002/12/09 06:04:58 cph Exp $
 
 Copyright (c) 1989-2002 Massachusetts Institute of Technology
 
@@ -1136,6 +1136,7 @@ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 	    edwin-variable$vc-checkin-hooks
 	    edwin-variable$vc-checkout-carefully
 	    edwin-variable$vc-command-messages
+	    edwin-variable$vc-cvs-stay-local
 	    edwin-variable$vc-default-init-version
 	    edwin-variable$vc-delete-logbuf-window
 	    edwin-variable$vc-display-status
diff --git a/v7/src/edwin/vc.scm b/v7/src/edwin/vc.scm
index 5838b38e2..7121113cd 100644
--- a/v7/src/edwin/vc.scm
+++ b/v7/src/edwin/vc.scm
@@ -1,8 +1,8 @@
 ;;; -*-Scheme-*-
 ;;;
-;;; $Id: vc.scm,v 1.80 2002/11/20 19:46:04 cph Exp $
+;;; $Id: vc.scm,v 1.81 2002/12/09 06:04:43 cph Exp $
 ;;;
-;;; Copyright (c) 1994-2001 Massachusetts Institute of Technology
+;;; Copyright (c) 1994-2002 Massachusetts Institute of Technology
 ;;;
 ;;; This file is part of MIT Scheme.
 ;;;
@@ -130,6 +130,12 @@ Otherwise, not displayed."
 Otherwise, the mod time of the file is the checkout time."
   #t
   boolean?)
+
+(define-variable vc-cvs-stay-local
+  "If true, use only the CVS timestamp to tell if a file has been modified.
+Otherwise, VC will compare the file to the copy in the repository."
+  #t
+  boolean?)
 
 ;;;; VC-TYPE datatype
 
@@ -982,13 +988,15 @@ Normally shows only locked files; prefix arg says to show all files."
 			   #f)
 			  ((cvs-master? master)
 			   (and (vc-workfile-modified? master)
-				(case (cvs-status master)
-				  ((LOCALLY-MODIFIED) "modified")
-				  ((LOCALLY-ADDED) "added")
-				  ((NEEDS-CHECKOUT) "patch")
-				  ((NEEDS-MERGE) "merge")
-				  ((UNRESOLVED-CONFLICT) "conflict")
-				  (else #f))))
+				(if (vc-cvs-stay-local? master)
+				    "modified"
+				    (case (cvs-status master)
+				      ((LOCALLY-MODIFIED) "modified")
+				      ((LOCALLY-ADDED) "added")
+				      ((NEEDS-CHECKOUT) "patch")
+				      ((NEEDS-MERGE) "merge")
+				      ((UNRESOLVED-CONFLICT) "conflict")
+				      (else #f)))))
 			  (else
 			   (vc-backend-locking-user master #f))))))
 	     (if (or status all-files?)
@@ -2123,11 +2131,15 @@ the value of vc-log-mode-hook."
 		     (and ts
 			  (string=? ts (file-time->global-ctime-string tw)))))
 	      #f
-	      (let ((modified? (vc-backend-diff master #f #f #t)))
-		(set-vc-cvs-workfile-mtime-string! master tm tw modified?)
-		modified?))
+	      (or (vc-cvs-stay-local? master)
+		  (let ((modified? (vc-backend-diff master #f #f #t)))
+		    (set-vc-cvs-workfile-mtime-string! master tm tw modified?)
+		    modified?)))
 	  (vc-backend-diff master #f #f #t)))))
 
+(define (vc-cvs-stay-local? master)
+  (ref-variable vc-cvs-stay-local (vc-workfile-buffer master #f)))
+
 (define (vc-cvs-workfile-mtime-string master)
   (read-cached-value-2 master 'CVS-MTIME-STRING
 		       (vc-master-pathname master)
-- 
2.25.1