From b4fb31617ca25d6a7b6f9d26ed05b24f041144c7 Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Wed, 11 Jul 2007 03:36:22 +0000
Subject: [PATCH] Merge in Brian Berliner's lbranch hack from the CVS contrib
 version.

---
 sccs2rcs | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/sccs2rcs b/sccs2rcs
index d1c4fa1..fd8a09c 100755
--- a/sccs2rcs
+++ b/sccs2rcs
@@ -50,6 +50,10 @@
 # cross the millenium boundary.  Use GNU tac instead of tail, which can't 
 # reverse large files properly.
 #
+# 1.3: Merges in Brian Berliner's branch hack from the other fork
+# of this script, the one distributed with CVS.  That and 4 SCCS 
+# keyword substitutions were we only thing it did that this didn't.
+#
 # Eric S. Raymond <esr@thyrsus.com>
 #
 # $Id$
@@ -130,6 +134,8 @@ set sccs_keywords = (\
     '%W%[ 	]*%G%'\
     '%W%[ 	]*%E%'\
     '%W%'\
+    '%Z%%M%[ 	]*%I%[ 	]*%G%'\
+    '%Z%%M%[ 	]*%I%[ 	]*%E%'\
     '%M%[ 	]*%I%[ 	]*%G%'\
     '%M%[ 	]*%I%[ 	]*%E%'\
     '%M%'\
@@ -141,6 +147,8 @@ set rcs_keywords = (\
     '$'Id'$'\
     '$'Id'$'\
     '$'Id'$'\
+    '$'SunId'$'\
+    '$'SunId'$'\
     '$'Id'$'\
     '$'Id'$'\
     '$'RCSfile'$'\
@@ -251,8 +259,15 @@ foreach sfile (SCCS/s.*)
             endif
         else
             # get RCS lock
-            rcs -l $file >>& $logfile
-            if ($status != 0) goto ERROR
+	    set lckrev = `echo $rev | sed -e 's/\.[0-9]*$//'`
+	    if ("$lckrev" =~ [0-9]*.*) then
+		# need to lock the brach -- it is OK if the lock fails
+		rcs -l$lckrev $file >>& $logfile
+	    else
+		# need to lock the trunk -- must succeed
+        	rcs -l $file >>& $logfile
+        	if ($status != 0) goto ERROR
+	    endif
             echo got lock
             prs -r$rev SCCS/s.$file | grep "." > $tmpfile
             # it's OK if grep fails here and gives status == 1
-- 
2.43.0