Created a Kotlin node runner (#367)

* Added a cross platform node runner to replace scripts.

* Added runnodes shell and batch files back.

* Node runner supports new webserver format.

* Runnodes now runs correctly on OSX

* Intermediate commit. Squash me.

* Upgdated gradle plugins version number to 0.10.1

* Further inlined more functions.

* Text display changes for noderunner.

gradle-plugins/cordformation/build.gradle

@@ -1,4 +1,18 @@
+buildscript {
+    // TODO: Unify with the one in the main project
+    ext.kotlin_version = '1.0.5-2'
+
+    repositories {
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
 apply plugin: 'groovy'
+apply plugin: 'kotlin'
 apply plugin: 'net.corda.plugins.publish-utils'
 
 description 'A small gradle plugin for adding some basic Quasar tasks and configurations to reduce build.gradle bloat.'
@@ -7,12 +21,42 @@ repositories {
     mavenCentral()
 }
 
+configurations {
+    noderunner
+    compile.extendsFrom noderunner
+}
+
+sourceSets {
+    runnodes {
+        kotlin {
+            srcDir file('src/noderunner/kotlin')
+            compileClasspath += configurations.noderunner
+        }
+    }
+}
+
 dependencies {
     compile gradleApi()
     compile localGroovy()
 
+    noderunner "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+
     // TypeSafe Config: for simple and human friendly config files.
     // TODO: Add a common versions file between Corda and gradle plugins to de-duplicate this version number
     compile "com.typesafe:config:1.3.1"
 }
 
+task createNodeRunner(type: Jar, dependsOn: [classes]) {
+    manifest {
+        attributes('Main-Class': 'net.corda.plugins.NodeRunnerKt')
+    }
+    baseName = project.name + '-fatjar'
+    from { configurations.noderunner.collect { it.isDirectory() ? it : zipTree(it) } }
+    from sourceSets.runnodes.output
+}
+
+jar {
+    from(createNodeRunner) {
+        rename { 'net/corda/plugins/runnodes.jar' }
+    }
+}

gradle-plugins/cordformation/src/main/groovy/net/corda/plugins/Cordform.groovy

@@ -65,10 +65,14 @@ class Cordform extends DefaultTask {
      * Installs the run script into the nodes directory.
      */
     protected void installRunScript() {
+        project.copy {
+            from Cordformation.getPluginFile(project, "net/corda/plugins/runnodes.jar")
+            fileMode 0755
+            into "${directory}/"
+        }
+
         project.copy {
             from Cordformation.getPluginFile(project, "net/corda/plugins/runnodes")
-            filter { String line -> line.replace("NODEJAR_NAME", Node.NODEJAR_NAME) }
-            filter { String line -> line.replace("WEBJAR_NAME", Node.WEBJAR_NAME) }
             // Replaces end of line with lf to avoid issues with the bash interpreter and Windows style line endings.
             filter(FixCrLfFilter.class, eol: FixCrLfFilter.CrLf.newInstance("lf"))
             fileMode 0755
@@ -77,8 +81,6 @@ class Cordform extends DefaultTask {
 
         project.copy {
             from Cordformation.getPluginFile(project, "net/corda/plugins/runnodes.bat")
-            filter { String line -> line.replace("NODEJAR_NAME", Node.NODEJAR_NAME) }
-            filter { String line -> line.replace("WEBJAR_NAME", Node.WEBJAR_NAME) }
             into "${directory}/"
         }
     }

gradle-plugins/cordformation/src/main/resources/net/corda/plugins/runnodes

@@ -1,62 +1,13 @@
 #!/usr/bin/env bash
-# Will attempt to execute a corda node within all subdirectories in the current working directory.
 
 set -euo pipefail
-export CAPSULE_CACHE_DIR=cache
 
 # Allow the script to be run from outside the nodes directory.
 basedir=$( dirname "$0" )
 cd "$basedir"
 
 if which osascript >/dev/null; then
-    # MacOS X: open each node in a in new tab.
-    first=true
-    script='tell app "Terminal"
-    activate'
-    rootdir=`pwd`
-    for dir in `ls`; do
-        if [ -d $dir ]; then
-            cmd="bash -c 'cd $rootdir/$dir; exec ./NODEJAR_NAME && exit'"
-            script="$script
-    tell application \"System Events\" to tell process \"Terminal\" to keystroke \"t\" using command down
-    delay 0.5
-    do script \"$cmd\" in window 1"
-            first=false
-        fi
-    done
-
-    # Now do the web servers.
-    if [[ "${NO_WEB_SERVER:-}" == "" ]]; then
-        for dir in `ls`; do
-            if [ -d $dir ]; then
-                cmd="bash -c 'cd $rootdir/$dir; /usr/libexec/java_home -v 1.8 --exec java -jar WEBJAR_NAME && exit'"
-                script="$script
-        tell application \"System Events\" to tell process \"Terminal\" to keystroke \"t\" using command down
-        delay 0.5
-        do script \"$cmd\" in window 1"
-                first=false
-            fi
-        done
-    fi
-    script="$script
-end tell"
-    osascript -e "$script"
+    /usr/libexec/java_home -v 1.8 --exec java -jar runnodes.jar
 else
-    # Some other UNIX, probably Linux (does not support msys or cygwin)
-    # TODO: msys and cygwin support
-    #
-    # If it is set, it means that java overrides the default system java, which is what we want.
-    if [ -n "${JAVA_HOME-}" ]; then
-	export PATH="$JAVA_HOME/bin:$PATH"
-    fi
-    for dir in `ls`; do
-        if [ -d $dir ]; then
-            pushd $dir >/dev/null
-            xterm -T "`basename $dir`" -e './NODEJAR_NAME' &
-            if [[ "${NO_WEB_SERVER:-}" == "" ]]; then
-                xterm -T "`basename $dir` Web Server" -e 'java -jar WEBJAR_NAME' &
-            fi
-            popd >/dev/null
-        fi
-    done
+    java -jar runnodes.jar
 fi

gradle-plugins/cordformation/src/main/resources/net/corda/plugins/runnodes.bat

@@ -3,13 +3,6 @@
 REM Change to the directory of this script (%~dp0)
 Pushd %~dp0
 
-FOR /D %%G in (.\*) DO (
- Pushd %%G
- start java -jar NODEJAR_NAME
- IF NOT DEFINED NO_WEB_SERVER (
-    start java -jar WEBJAR_NAME
- )
- Popd
-)
+java -jar runnodes.jar
 
 Popd

gradle-plugins/cordformation/src/noderunner/kotlin/net/corda/plugins/NodeRunner.kt

@@ -0,0 +1,79 @@
+package net.corda.plugins
+
+import java.awt.GraphicsEnvironment
+import java.io.File
+import java.nio.file.Files
+import java.nio.file.Paths
+import java.util.Locale
+
+private val nodeJarName = "corda.jar"
+private val webJarName = "corda-webserver.jar"
+private val nodeConfName = "node.conf"
+
+fun main(args: Array<String>) {
+    val startedProcesses = mutableListOf<Process>()
+    val headless = (GraphicsEnvironment.isHeadless() || (!args.isEmpty() && (args[0] == "--headless")))
+    val runJar = getJarRunner(headless)
+    val workingDir = Paths.get(System.getProperty("user.dir")).toFile()
+    val javaArgs = listOf<String>() // TODO: Add args passthrough
+    println("Starting nodes in $workingDir")
+
+    workingDir.list().map { File(workingDir, it) }.forEach {
+        if (isNode(it)) {
+            println("Starting node in $it")
+            startedProcesses.add(runJar(nodeJarName, it, javaArgs))
+        }
+
+        if (isWebserver(it)) {
+            println("Starting webserver in $it")
+            startedProcesses.add(runJar(webJarName, it, javaArgs))
+        }
+    }
+
+    println("Started ${startedProcesses.size} processes")
+    println("Finished starting nodes")
+}
+
+private fun isNode(maybeNodeDir: File) = maybeNodeDir.isDirectory
+        && File(maybeNodeDir, nodeJarName).exists()
+        && File(maybeNodeDir, webJarName).exists()
+        && File(maybeNodeDir, nodeConfName).exists()
+
+private fun isWebserver(maybeWebserverDir: File) = isNode(maybeWebserverDir) && hasWebserverPort(maybeWebserverDir)
+
+// TODO: Add a webserver.conf, or use TypeSafe config instead of this hack
+private fun hasWebserverPort(nodeConfDir: File) = Files.readAllLines(File(nodeConfDir, nodeConfName).toPath()).joinToString { it }.contains("webAddress")
+
+private fun getJarRunner(headless: Boolean): (String, File, List<String>) -> Process = if (headless) ::execJar else ::execJarInTerminalWindow
+
+private fun execJar(jarName: String, dir: File, args: List<String> = listOf()): Process {
+    val nodeName = dir.toPath().fileName
+    val separator = System.getProperty("file.separator")
+    val path = System.getProperty("java.home") + separator + "bin" + separator + "java"
+    val builder = ProcessBuilder(listOf(path, "-Dname=$nodeName", "-jar", jarName) + args)
+    builder.redirectError(Paths.get("error.${dir.toPath().fileName}.log").toFile())
+    builder.inheritIO()
+    builder.directory(dir)
+    return builder.start()
+}
+
+private fun execJarInTerminalWindow(jarName: String, dir: File, args: List<String> = listOf()): Process {
+    val javaCmd = "java -jar $jarName " + args.joinToString(" ") { it }
+    val nodeName = dir.toPath().fileName + " " + jarName
+    val osName = System.getProperty("os.name", "generic").toLowerCase(Locale.ENGLISH)
+    val cmd = if ((osName.indexOf("mac") >= 0) || (osName.indexOf("darwin") >= 0)) {
+        """osascript -e "tell app "Terminal
+activate
+tell application \"System Events\" to tell process \"Terminal\" to keystroke \"t\" using command down
+delay 0.5
+do script "bash -c 'cd $dir; /usr/libexec/java_home -v 1.8 --exec $javaCmd && exit'" in window 1"
+"""
+    } else if (osName.indexOf("win") >= 0) {
+        """cmd /C "start $javaCmd""""
+    } else {
+        // Assume Linux
+        """xterm -T "$nodeName" -e $javaCmd"""
+    }
+
+    return Runtime.getRuntime().exec(cmd, null, dir)
+}

publish.properties

@@ -1 +1 @@
-gradlePluginsVersion=0.10.0
+gradlePluginsVersion=0.10.1