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How to build kestrel with sbt-0.12.2

kestrel is an one of MQ (Message Queue) implementaiton used in twitter. It's written in scala and sbt is used to build it.

At this time I'm writing, the latest version of sbt is 0.12.2, 0.13.0 is going to be released though. So I downloaded 0.12.2 from here and tried to bulid as the building-it section.

$ git clone git://github.com/robey/kestrel.git
$ cd kestrel
$ sbt clean update package-dist

I failed to build due to a following dependency error.

...
[info] Resolving org.scala-sbt#precompiled-2_8_2;0.12.0 ...
[info] Resolving org.scala-sbt#precompiled-2_10_0-m4;0.12.0 ...
[warn] 	::::::::::::::::::::::::::::::::::::::::::::::
[warn] 	::          UNRESOLVED DEPENDENCIES         ::
[warn] 	::::::::::::::::::::::::::::::::::::::::::::::
[warn] 	:: com.twitter#sbt-package-dist;1.0.6: not found
[warn] 	:: com.twitter#sbt11-scrooge;3.0.0: not found
[warn] 	::::::::::::::::::::::::::::::::::::::::::::::
[warn] 
[warn] 	Note: Some unresolved dependencies have extra attributes.  Check that these dependencies exist with the requested attributes.
[warn] 		com.twitter:sbt-package-dist:1.0.6 (sbtVersion=0.12, scalaVersion=2.9.2)
[warn] 		com.twitter:sbt11-scrooge:3.0.0 (sbtVersion=0.12, scalaVersion=2.9.2)
[warn] 
sbt.ResolveException: unresolved dependency: com.twitter#sbt-package-dist;1.0.6: not found
unresolved dependency: com.twitter#sbt11-scrooge;3.0.0: not found
  at sbt.IvyActions$.sbt$IvyActions$$resolve(IvyActions.scala:211)
  at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:122)
  ...
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
  at java.lang.Thread.run(Thread.java:722)
[error] (*:update) sbt.ResolveException: unresolved dependency: com.twitter#sbt-package-dist;1.0.6: not found
[error] unresolved dependency: com.twitter#sbt11-scrooge;3.0.0: not found
Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore?

As the section saying, we have to use sbt 0.11.2 to build.

Kestrel requires java 6 and sbt 0.11.2. Presently some sbt plugins used by kestrel depend on that exact version of sbt. On OS X 10.5, you may have to hard-code an annoying JAVA_HOME to use java 6:

On sbt, you can put a build.properties in project directory in order to use the specific version of sbt.

echo "sbt.version=0.11.2" > project/build.properties

Then I tried to build again, so it was succeeded and dist directory is generated in kestrel.

About how to run, see Running it section.

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