Download an artifact on OSX from Atlassian Bamboo

downloadBambooArtifact.sc

#!/usr/bin/env amm
//Requirements:
//  This only runs on OSX as it uses OSX Keychain to store your Bamboo login credentials
//  Tested with Ammonite 0.7.0
import ammonite.ops._
import $ivy.`org.scalaj::scalaj-http:2.2.0`, scalaj.http._
import $ivy.`org.json4s::json4s-native:3.4.0`, org.json4s._, native.JsonMethods._
import java.net.SocketTimeoutException
implicit val formats = DefaultFormats //Bring default json formats into scope
implicit val wd = cwd //set working directory to current working directory

val (scheme, bambooHost, planKey, artifact) = ("https", "bamboo.yourDomain.com", "PlanKey", "artifactFileName")
println(s"attempting to update $artifact")

//wrap script in try catch to enable printing help instructions on failure
try {
  //No attempt is made to handle multiple sets of credentials in the keychain for the same resource
  //regex used to extract username from OSX security output
  val usernameExtractor = """(?s).*acct"<blob>="([A-Za-z]+).*""".r
  
  //Call native security function to find login for bambooHost and extract the username
  val usernameExtractor(username) = (%%('security, "find-generic-password", "-gs", bambooHost).out.toString)
  
  //Call the security function with -w this time to output just the password
  val password = (%%('security, "find-generic-password", "-s", bambooHost, "-w").out.lines.head)
  
  //Build a url to grab the latest successful build result for the supplied playKey
  val latestSuccessfulQuery = s"https://$bambooHost/rest/api/latest/result/$planKey/.json?max-results=1&buildstate=Successful"
  
  //Grab the json from Bamboo as text
  val latestSuccessfulBuild = Http(latestSuccessfulQuery).auth(username, password).asString.body
  
  //Parse it into json and extract buildNumber
  val json = parse(latestSuccessfulBuild)
  val buildNumber = ((json \ "results" \ "result")(0) \ "buildNumber").extract[Int]
  
  //Use buildNumber to build the url used to locate artifacts for the build
  val artifactLocation = s"https://$bambooHost/artifact/$planKey/shared/build-$buildNumber/Artifacts/$artifact"
  
  //Download the file contents and write them to the current working directory, overwriting if the file exists
  val fileContents = Http(artifactLocation).auth(username, password).asString.body
  write.over(cwd/artifact, fileContents)
  println(s"successfully updated $artifact from build $buildNumber")
}
catch {
  case ex: SocketTimeoutException => println(s"Unable to communicate with $bambooHost")
  case ex: ShelloutException =>
  println("Failed to retrieve credentials from Keychain")
  println("Before running this script add your credentials to your OSX Keychain using:\n")
  println(s"\tsecurity add-generic-password -U -s $bambooHost -a yourBambooUsername -w yourBambooPassword\n")
}