- add support for ignoring files and directories from comparison

through an optionnal /etc/sysmerge.ignore file
requested by many

man page tweak from jmc@
/etc/changelist addition suggested by sthen@

ok sthen@ jdixon@ jmc@ naddy@

2 files changed, 14 insertions, 3 deletions

diff --git a/usr.sbin/sysmerge/sysmerge.8 b/usr.sbin/sysmerge/sysmerge.8
index 0620e5662c5..64078fd2926 100644
--- a/usr.sbin/sysmerge/sysmerge.8
+++ b/usr.sbin/sysmerge/sysmerge.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: sysmerge.8,v 1.7 2008/06/13 00:33:04 ajacoutot Exp $
+.\"	$OpenBSD: sysmerge.8,v 1.8 2008/06/13 00:46:57 ajacoutot Exp $
 .\"
 .\" Copyright (c) 2008 Antoine Jacoutot <ajacoutot@openbsd.org>
 .\"
@@ -113,6 +113,10 @@ Should any problems occur,
 such as a failure to upgrade a file,
 the user will be notified and have to deal with the issue by hand.
 .Pp
+Files and directories can be excluded from comparison
+by listing them in the file
+.Pa /etc/sysmerge.ignore ,
+each entry separated by white space or a new line.
 The following files will always be skipped from comparison:
 .Pa /etc/*.db ,
 .Pa /etc/mail/*.db ,
@@ -183,6 +187,8 @@ The
 and
 .Sy backup
 directories are created relative to this.
+.It /etc/sysmerge.ignore
+Files and directories to ignore from comparison.
 .El
 .Sh SEE ALSO
 .Xr cap_mkdb 1 ,
diff --git a/usr.sbin/sysmerge/sysmerge.sh b/usr.sbin/sysmerge/sysmerge.sh
index d8a43608757..aee9f9e13f7 100644
--- a/usr.sbin/sysmerge/sysmerge.sh
+++ b/usr.sbin/sysmerge/sysmerge.sh
@@ -1,6 +1,6 @@
 #!/bin/sh -
 #
-# $OpenBSD: sysmerge.sh,v 1.13 2008/06/13 00:33:04 ajacoutot Exp $
+# $OpenBSD: sysmerge.sh,v 1.14 2008/06/13 00:46:57 ajacoutot Exp $
 #
 # This script is based on the FreeBSD mergemaster script, written by
 # Douglas Barton <DougB@FreeBSD.org>
@@ -101,8 +101,13 @@ do_populate() {
 			IGNORE_FILES="${IGNORE_FILES} ${cf}"
 		fi
 	done
+	if [ -r /etc/sysmerge.ignore ]; then
+		while read i; do \
+			IGNORE_FILES="${IGNORE_FILES} $(echo ${i} | sed -e 's,\.\.,,g')"
+		done < /etc/sysmerge.ignore
+	fi
 	for i in ${IGNORE_FILES}; do
-		rm -f ${TEMPROOT}/${i};
+		rm -rf ${TEMPROOT}/${i};
 	done
 }