How to deploy Gitbucket to Heroku

Question

I am getting an error when I try to deploy an unmodified version of the latest Gitbucket source to heroku.

  [info] 'compiler-interface' not yet compiled for Scala 2.10.3. Compiling...
  [info]   Compilation completed in 36.561 s
  [success] Total time: 142 s, completed Jan 1, 2014 2:04:32 PM
  [error] Not a valid command: stage (similar: last-grep, set, last)
  [error] Expected '/'
  [error] Expected ':'
  [error] Not a valid key: stage (similar: state, target, tags)
  [error] stage
  [error]      ^

! Failed to build app with sbt

! Push rejected, failed to compile Scala app

To git@heroku.com:xxxxxx.git ! [remote rejected] master -> master (pre-receive hook declined) error: failed to push some refs to 'git@heroku.com:xxxxxx.git'

Everything builds and runs locally with no issues. There is a demo app available at http://gitbucket.herokuapp.com/, so I know it is possible. How can I get around this error?

[EDIT] I have added this to plugins.sbt now, but it still fails in the same way:

resolvers += Classpaths.typesafeResolver
addSbtPlugin("com.typesafe.startscript" % "xsbt-start-script-plugin" % "0.5.3")

Answer 1

It looks like your SBT is trying to run stage command and it does not know how. That is usually because you are missing one of the SBT plugins that implements this command (it's not a standard command in SBT).

I checked it out and compiled. It passes tests but it does not have stage command. I checked SBT plugins (project/plugins.sbt):

addSbtPlugin("com.typesafe.sbteclipse" % "sbteclipse-plugin" % "2.2.0")

addSbtPlugin("com.github.mpeltonen" % "sbt-idea" % "1.5.1")

addSbtPlugin("org.scalatra.sbt" % "scalatra-sbt" % "0.3.0")

addSbtPlugin("io.spray" % "sbt-twirl" % "0.6.1")

addSbtPlugin("com.timushev.sbt" % "sbt-updates" % "0.1.2")

And nothing looks like heroku deployment plugin or similar. How are you deploying it and how are you invoking it?

[EDIT] Given your updates I looked up the plugin: https://github.com/typesafehub/xsbt-start-script-plugin. I think you added the plugin to the project which is good, but not sufficient. Now you need to configure project settings similar to this:

import com.typesafe.startscript.StartScriptPlugin
settings = StartScriptPlugin.startScriptForClassesSettings

See the github README for details.