leiningen

README

Paketo Buildpack for Leiningen

The Paketo Leiningen Buildpack is a Cloud Native Buildpack that builds Leiningen-based applications from source.

Behavior

This buildpack will participate all the following conditions are met

• <APPLICATION_ROOT>/project.clj exists

The buildpack will do the following:

• Requests that a JDK be installed
• Links the ~/.lein to a layer for caching
• If <APPLICATION_ROOT>/lein exists
  • Runs <APPLICATION_ROOT>/lein uberjar to build the application
• If <APPLICATION_ROOT>/lein does not exist
  • Contributes Lein to a layer with all commands on $PATH
  • Runs <LEIN_ROOT>/bin/lein uberjar to build the application
• Removes the source code in <APPLICATION_ROOT>
• Expands <APPLICATION_ROOT>/uberjar/*-standalone.jar to <APPLICATION_ROOT>

Configuration

Environment Variable	Description
$BP_LEIN_BUILD_ARGUMENTS	Configure the arguments to pass to build system. Defaults to uberjar.
$BP_LEIN_BUILT_MODULE	Configure the module to find application artifact in. Defaults to the root module (empty).
$BP_LEIN_BUILT_ARTIFACT	Configure the built application artifact explicitly. Supersedes $BP_LEIN_BUILT_MODULE Defaults to target/*-standalone.jar.