release.gradle

ext {
	currentBranch = getCurrentBranch()
    releaseBranch = "release-${versionNumber}"
    workDirectory = createWorkDirectory()
    project = 'thucydides'
    artifacts = ['thucydides-report-resources','thucydides-core', 'thucydides-junit',
                 'maven-thucydides-plugin','thucydides-ant-task',
                 'thuydides-browsermob-plugin', 'thucydides-test-utils']
    mavenRepo = "~/.m2/repository"
}

task createBranch {
    executeOnShell "git checkout -b ${project.ext.releaseBranch}"
}

task setNewVersion {
    dependsOn createBranch
    executeOnShell "mvn versions:set -DnewVersion=${versionNumber}"
}

task buildArtifacts {
    dependsOn setNewVersion
    executeOnShell "mvn clean install -DskipTests"
    executeOnShell "mvn compile test-compile javadoc:jar source:jar"
}

task deployArtifacts {
	dependsOn buildArtifacts
    def parentPomFile = findParentArtifact()
    def jarFiles = findChildArtifacts()
    def javadocFiles = findJavadocArtifacts()
    def sourceJarFiles = findSourceArtifacts()

    deployFile(parentPomFile, parentPomFile)

    jarFiles.each { jarFile ->
        def artifactName = new File(jarFile).name.replace(".jar","")
        def pomFile = jarFile.replace(".jar",".pom")
        def sourceFile = sourceJarFiles.find { it.contains(artifactName)}
        def javadocFile = javadocFiles.find { it.contains(artifactName)}
        deployFiles(pomFile, jarFile, sourceFile, javadocFile)
    }
}

task deployCurrentBuildArtifacts {
    def parentPomFile = findParentArtifact()
    def jarFiles = findChildArtifacts()
    def javadocFiles = findJavadocArtifacts()
    def sourceJarFiles = findSourceArtifacts()

    deployFile(parentPomFile, parentPomFile)

    jarFiles.each { jarFile ->
        def artifactName = new File(jarFile).name.replace(".jar","")
        def pomFile = jarFile.replace(".jar",".pom")
        def sourceFile = sourceJarFiles.find { it.contains(artifactName)}
        def javadocFile = javadocFiles.find { it.contains(artifactName)}
        deployFiles(pomFile, jarFile, sourceFile, javadocFile)
    }
}

task pushNewBranch {
    executeOnShell "git commit -a -m '[Release version ${versionNumber}]'"
    executeOnShell "git tag -f release-${versionNumber}"
    executeOnShell "git push origin ${project.ext.releaseBranch}"
    executeOnShell "git push origin --tags"
}

task checkoutOriginalBranch {
    executeOnShell "git checkout ${project.ext.currentBranch}"
}

task release {
	dependsOn deployArtifacts, pushNewBranch, checkoutOriginalBranch
	println "RELEASING THUCYDIDES VERSION ${versionNumber}"
}

def deployFile(pomFilePath, artifactFilePath) {
    deployFiles(pomFilePath, artifactFilePath, null, null)
}

def deployFiles(pomFilePath, artifactFilePath, sourceFile, javadocFile) {

    println "Deploying $artifactFilePath"
    def tempDirectory = project.ext.workDirectory
    def toSonatypeStagingRepo = "-Durl=https://oss.sonatype.org/service/local/staging/deploy/maven2/ -DrepositoryId=sonatype-nexus-staging"

    def pomFile = new File(pomFilePath)
    def artifactFile = new File(artifactFilePath)
    def tempPom = new File(tempDirectory, pomFile.getName())
    def tempArtifact = new File(tempDirectory, artifactFile.getName())

    executeOnShell "cp ${pomFilePath.trim()} ${tempDirectory.path}"
    executeOnShell "cp ${artifactFilePath.trim()} ${tempDirectory.path}"

    def deployCmd = "mvn gpg:sign-and-deploy-file $toSonatypeStagingRepo -DpomFile=${tempPom.path} -Dfile=${tempArtifact.path}"
    if (sourceFile) {
        deployCmd += " -Dsources=$sourceFile"
    }
    if (javadocFile) {
        deployCmd += " -Djavadoc=$javadocFile"
    }
    executeOnShell deployCmd

}

def getCurrentBranch() {
	def branches = executeOnShell('git branch',true)
	def branch = branches.readLines().find { it.startsWith('*') }
	branch.stripIndent(2)
}

def findParentArtifact() {
    def parentPom = executeOnShell "find ~/.m2/repository -name '*.pom' | grep ${project.ext.project}-${versionNumber}.pom"
    parentPom.trim()
}

def findChildArtifacts() {
    findJarsWithQualifier(versionNumber, "~/.m2/repository")
}

def findJavadocArtifacts() {
    findJarsWithQualifier("javadoc")
}

def findSourceArtifacts() {
    findJarsWithQualifier("sources")
}

def findJarsWithQualifier(qualifier) {
    findJarsWithQualifier(qualifier,".")
}

def findJarsWithQualifier(qualifier, directory) {

    def artifactPaths = []

    project.ext.artifacts.each {
        def jarFile = executeOnShell "find ${directory} -name '*.jar' | grep ${it} | grep ${qualifier}.jar"
        if (jarFile) {
            artifactPaths.add jarFile.trim()
        }

    }
    return artifactPaths
}
def executeOnShell(String command) {
    return executeOnShell(command, false)
}

def createWorkDirectory() {
    File dir = File.createTempFile( 'artifacts', '.dir' )
    dir.delete()
    dir.mkdir()
    return dir
}

def executeOnShell(String command, boolean failOnError) {
    println "EXECUTING $command"
    def output = new StringBuffer();
    def process = new ProcessBuilder(addShellPrefix(command))
            .redirectErrorStream(true)
            .start()
    process.inputStream.eachLine {println it; output.append(it).append("\n")}
    process.waitFor();
    if (failOnError && process.exitValue() != 0) {
        throw new GradleException("$command failed to execute")
    }
    return output.toString()
}

private def addShellPrefix(String command) {
    def commandArray = new String[3]
    commandArray[0] = "sh"
    commandArray[1] = "-c"
    commandArray[2] = command
    return commandArray
}