add cvs -W option to disable -R/CVSREADONLYFS

>Submitter-Id:  net
>Originator: 	Norikatsu Shigemura
>Organization:	net
>Confidential:  no
>Synopsis:	add cvs -W option to disable -R/CVSREADONLYFS
>Severity:	non-critical
>Priority:	low
>Category: 	cvs
>Class:		change-request
>Release:	1.12.5
>Environment:
System: FreeBSD melfina.ninth-nine.com 5.2-CURRENT FreeBSD 5.2-CURRENT #12: Sun Mar  7 21:11:13 JST 2004 [email protected]:/usr/obj/usr/src/sys/MELFINA i386

>Description:
	I added a feature which is to nagate a effect of -R/CVSREADONLYFS
	to cvs as -W option.  Please review and commit.
>How-To-Repeat:
	N/A
>Fix:
	Following patches are for cvs-1.12.5.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
--- cvs-1.12.5/src/main.c.orig	Wed Nov 26 01:11:47 2003
+++ cvs-1.12.5/src/main.c	Tue Mar  9 19:50:09 2004
@@ -252,6 +252,7 @@ static const char *const opt_usage[] =
     "    -t           Show trace of program execution (repeat for more\n",
     "                 verbosity) -- try with -n.\n",
     "    -R           Assume repository is read-only, such as CDROM\n",
+    "    -W           Assume repository is writable (default).\n",
     "    -v           CVS version and copyright.\n",
     "    -T tmpdir    Use 'tmpdir' for temporary files.\n",
     "    -e editor    Use 'editor' for editing log information.\n",
@@ -423,7 +424,7 @@ main (int argc, char **argv)
     int help = 0;		/* Has the user asked for help?  This
 				   lets us support the `cvs -H cmd'
 				   convention to give help for cmd. */
-    static const char short_options[] = "+QqrwtnRvb:T:e:d:Hfz:s:xa";
+    static const char short_options[] = "+QqrwtnRWvb:T:e:d:Hfz:s:xa";
     static struct option long_options[] =
     {
         {"help", 0, NULL, 'H'},
@@ -563,6 +564,10 @@ main (int argc, char **argv)
 		break;
 	    case 'R':
 		readonlyfs = -1;
+		logoff = 1;
+		break;
+	    case 'W':
+		readonlyfs = 0;
 		logoff = 1;
 		break;
 	    case 'n':
--- cvs-1.12.5/man/cvs.1.orig	Sat Mar 29 01:02:33 2003
+++ cvs-1.12.5/man/cvs.1	Tue Mar  9 19:51:21 2004
@@ -243,7 +243,8 @@ Same effect as if the
 .SM CVSREADONLYFS
 environment variable is set.  Using
 .B \-R
-can also considerably speed up checkout's over NFS.
+can also considerably speed up checkout's over NFS.  If you want to disable
+this feature, you should specify -W option.
 .TP
 .B \-v [ --version ]
 Displays version and copyright information for
@@ -254,6 +255,10 @@ Makes new working files read-write (defa
 Overrides the setting of the
 .SM CVSREAD
 environment variable.
+.TP
+.B \-W
+Turns off read-only repository mode.  This is default mode, but it
+typically uses to negate the effect of -R option.
 .TP
 .B \-x
 Encrypt all communication between the client and the server.  As of
--- cvs-1.12.5/doc/cvs.texinfo.orig	Wed Dec 10 05:09:32 2003
+++ cvs-1.12.5/doc/cvs.texinfo	Tue Mar  9 19:53:16 2004
@@ -8151,7 +8151,12 @@ repository.
 
 Same effect as if the @code{CVSREADONLYFS} environment
 variable is set. Using @samp{-R} can also considerably
-speed up checkout's over NFS.
+speed up checkout's over NFS.  If you want to disable
+this feature, you should specify @samp{-W} option.
+
+@item -W
+Turns off read-only repository mode.  This is default mode,
+but it typically uses to negate the effect of @samp{-R} option.
 
 @cindex Read-only mode
 @item -n
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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