HBASE-487 New hbase shell

Part 3: Avoid the help problem. Output banner that tells user instead
to type 'hbase' for list of commands. Update jruby to 1.1.2 release.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@661825 13f79535-47bb-0310-9956-ffa450edef68

bin/hbase

@@ -55,11 +55,11 @@ esac
 if [ $# = 0 ]; then
   echo "Usage: hbase <command>"
   echo "where <command> is one of:"
-  echo "  shell            run the Hbase shell"
-  echo "  master           run an Hbase HMaster node" 
-  echo "  regionserver     run an Hbase HRegionServer node" 
-  echo "  rest             run an Hbase REST server" 
-  echo "  thrift           run an Hbase Thrift server" 
+  echo "  shell            run the HBase shell"
+  echo "  master           run an HBase HMaster node" 
+  echo "  regionserver     run an HBase HRegionServer node" 
+  echo "  rest             run an HBase REST server" 
+  echo "  thrift           run an HBase Thrift server" 
   echo "  migrate          upgrade an hbase.rootdir"
   echo " or"
   echo "  CLASSNAME        run the class named CLASSNAME"

bin/hirb.rb

@@ -1,5 +1,13 @@
-# Some goodies for hirb
-require 'irb/completion'
+# Module passed to jirb using the '-r' flag when bin/hbase shell is invoked.
+# Pollutes jirb with hbase imports and hbase commands.  Outputs a banner
+# that tells user where to find help, shell version, etc.
+
+# TODO: Process command-line arguments: e.g. --master= or -Dhbase.etc and --formatter
+# or read hbase shell configurations from irbrc
+# TODO: Read from environment which outputter to use (outputter should
+# be able to output to a passed Stream as well as STDIN and STDOUT)
+# TODO: Write a base class for formatters with ascii, xhtml, and json subclasses.
+# TODO: Intercept 'help'
 
 # Run the java magic include and import basic HBase types.
 include Java
@@ -11,20 +19,25 @@ import org.apache.hadoop.hbase.HConstants
 import org.apache.hadoop.hbase.HTableDescriptor
 import org.apache.hadoop.hbase.io.BatchUpdate
 
+# Some goodies for hirb. Should these be left up to the user's discretion?
+require 'irb/completion'
+
 # Set the irb shell name to be hbase.
 IRB.conf[:IRB_NAME] = "hbase"
 
-# TODO: Read from environment which outputter to use (outputter should
-# be able to output to a passed Stream as well as STDIN and STDOUT)
-
-
-def help
-    puts 'HBase Commands:'
-    puts ' version   Output the hbase version'
+def hbase
+  puts 'HBase Shell Commands:'
+  puts ' version   Output HBase version'
 end
 
 def version
-    puts "HBase Version: #{org.apache.hadoop.hbase.util.VersionInfo.getVersion()}"
-    puts "SVN Revision: #{org.apache.hadoop.hbase.util.VersionInfo.getRevision()}"
-    puts "HBase Compiled: #{org.apache.hadoop.hbase.util.VersionInfo.getDate()}"
+  puts "Version: #{org.apache.hadoop.hbase.util.VersionInfo.getVersion()},\
+ r#{org.apache.hadoop.hbase.util.VersionInfo.getRevision()},\
+ #{org.apache.hadoop.hbase.util.VersionInfo.getDate()}"
 end
+
+# Output a banner message that tells users where to go for help
+# TODO: Test that we're in irb context.  For now presume it.
+# TODO: Test that we are in shell context.
+puts "HBase Shell; type 'hbase<RETURN>' for the list of supported HBase commands"
+version