HBASE-3000 Add "hbase classpath" command to dump classpath

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@999060 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -967,6 +967,7 @@ Release 0.21.0 - Unreleased
    HBASE-2862  Name DFSClient for Improved Debugging
                (Nicolas Spiegelberg via Stack)
    HBASE-2838  Replication metrics
+   HBASE-3000  Add "hbase classpath" command to dump classpath
 
   OPTIMIZATIONS
    HBASE-410   [testing] Speed up the test suite

bin/hbase

@@ -76,6 +76,7 @@ if [ $# = 0 ]; then
   echo "  avro             run an HBase Avro server" 
   echo "  migrate          upgrade an hbase.rootdir"
   echo "  hbck             run the hbase 'fsck' tool"
+  echo "  classpath        dumps hbase CLASSPATH"
   echo " or"
   echo "  CLASSNAME        run the class named CLASSNAME"
   echo "Most commands print help when invoked w/o parameters."
@@ -262,6 +263,9 @@ elif [ "$COMMAND" = "zookeeper" ] ; then
   fi
 elif [ "$COMMAND" = "zkcli" ] ; then
   CLASS='org.apache.zookeeper.ZooKeeperMain'
+elif [ "$COMMAND" = "classpath" ] ; then
+  echo $CLASSPATH
+  exit 0
 else
   CLASS=$COMMAND
 fi