[Truffle] jt checkout command.

jruby · Dec 7, 2015 · a13820c · a13820c
1 parent 978e1e2
commit a13820c
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/tool/jt.rb b/tool/jt.rb
@@ -172,6 +172,7 @@ module Commands
   include ShellUtils
 
   def help
+    puts 'jt checkout name                               checkout a different Git branch and rebuild'
     puts 'jt build [options]                             build'
     puts 'jt build truffle [options]                     build only the Truffle part, assumes the rest is up-to-date'
     puts 'jt rebuild [options]                           clean and build'
@@ -218,6 +219,11 @@ def help
     puts '           branch names are mangled - eg truffle-head becomes GRAAL_BIN_TRUFFLE_HEAD'
   end
 
+  def checkout(branch)
+    sh 'git', 'checkout', branch
+    rebuild
+  end
+
   def build(*args)
     mvn_args = []