Implement database schema versioning.

[sliver-openvswitch.git] / vswitchd / automake.mk

diff --git a/vswitchd/automake.mk b/vswitchd/automake.mk
index 4c3c076..abcf762 100644 (file)
--- a/vswitchd/automake.mk
+++ b/vswitchd/automake.mk
@@ -92,3 +92,15 @@ vswitchd/ovs-vswitchd.conf.db.5: \
                $(srcdir)/vswitchd/vswitch.ovsschema \
                $(srcdir)/vswitchd/vswitch.xml > $@.tmp
        mv $@.tmp $@
+
+# Version checking for vswitch.ovsschema.
+ALL_LOCAL += vswitchd/vswitch.ovsschema.stamp
+vswitchd/vswitch.ovsschema.stamp: vswitchd/vswitch.ovsschema
+       @sum=`sed '/cksum/d' $? | cksum`; \
+       expected=`sed -n 's/.*"cksum": "\(.*\)".*/\1/p' $?`; \
+       if test "X$$sum" = "X$$expected"; then \
+         touch $@; \
+       else \
+         ln=`sed -n '/"cksum":/=' $?`; \
+         echo "$?:$$ln: checksum \"$$sum\" does not match (you should probably update the version number and fix the checksum)"; \
+       fi