Re: Further VC tuning is blocked

[Tom Tromey <tromey@redhat.com>]

>>>>> "Tom" == Tom Tromey <tromey@redhat.com> writes:

Tom> Anyway, I think there's still a bit of room for improvement here.  I
Tom> think it should be possible to invoke svn a single time for this
Tom> particular scenario.

This patch seems to achieve that.

I didn't update the svn status call in vc-svn-registered.
It doesn't seem needed.

I removed a call to buffer-disable-undo, because it doesn't do
anything and is just confusing -- temporary buffers have undo disabled
by default.

Unfortunately this barely speeds up my test case.  It cut off 2
seconds, down to 318 :-(.  Still, IMO it is worth applying.

Tom

2008-01-05  Tom Tromey  <tromey@redhat.com>

	* vc-svn.el (vc-svn-state): Pass --no-ignore to svn.
	(vc-svn-dir-state): Likewise.  Remove call to
	buffer-disable-undo.

*** vc-svn.el	02 Jan 2008 16:11:33 -0700	1.59
--- vc-svn.el	05 Jan 2008 10:48:23 -0700	
***************
*** 1,6 ****
  ;;; vc-svn.el --- non-resident support for Subversion version-control
  
! ;; Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
  
  ;; Author:      FSF (see vc.el for full credits)
  ;; Maintainer:  Stefan Monnier <monnier@gnu.org>
--- 1,6 ----
  ;;; vc-svn.el --- non-resident support for Subversion version-control
  
! ;; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
  
  ;; Author:      FSF (see vc.el for full credits)
  ;; Maintainer:  Stefan Monnier <monnier@gnu.org>
***************
*** 139,145 ****
    (setq localp (or localp (vc-stay-local-p file)))
    (with-temp-buffer
      (cd (file-name-directory file))
!     (vc-svn-command t 0 file "status" (if localp "-v" "-u"))
      (vc-svn-parse-status file)))
  
  (defun vc-svn-state-heuristic (file)
--- 139,145 ----
    (setq localp (or localp (vc-stay-local-p file)))
    (with-temp-buffer
      (cd (file-name-directory file))
!     (vc-svn-command t 0 file "status" (if localp "-v" "-u") "--no-ignore")
      (vc-svn-parse-status file)))
  
  (defun vc-svn-state-heuristic (file)
***************
*** 153,160 ****
      ;; Don't specify DIR in this command, the default-directory is
      ;; enough.  Otherwise it might fail with remote repositories.
      (with-temp-buffer
!       (buffer-disable-undo)		;; Because these buffers can get huge
!       (vc-svn-command t 0 nil "status" (if localp "-v" "-u"))
        (vc-svn-parse-status))))
  
  (defun vc-svn-working-revision (file)
--- 153,159 ----
      ;; Don't specify DIR in this command, the default-directory is
      ;; enough.  Otherwise it might fail with remote repositories.
      (with-temp-buffer
!       (vc-svn-command t 0 nil "status" (if localp "-v" "-u") "--no-ignore")
        (vc-svn-parse-status))))
  
  (defun vc-svn-working-revision (file)