Add hot module replacement for development

1 files changed, 12 insertions, 7 deletions

diff --git a/language-web/build.gradle b/language-web/build.gradle
index ff0f9e9c..6599d465 100644
--- a/language-web/build.gradle
+++ b/language-web/build.gradle
@@ -12,6 +12,7 @@ dependencies {
 def webpackOutputDir = "${buildDir}/webpack"
 def productionResources = "${webpackOutputDir}/production"
 def mainClass = 'org.eclipse.viatra.solver.language.web.ServerLauncher'
+def currentNodeEnv = System.getenv('NODE_ENV') ?: 'development'
 
 apply plugin: 'com.moowork.node'
 
@@ -63,14 +64,18 @@ task jettyRun(type: JavaExec) {
         classpath = sourceSets.main.runtimeClasspath.filter{it.exists()}
         main = mainClass
         standardInput = System.in
+        environment BASE_RESOURCE: "${webpackOutputDir}/${currentNodeEnv}"
         group = 'run'
-        description = 'Starts an example Jetty server with your language'
-        environment(
-                DEV_MODE: 'true',
-                LISTEN_ADDRESS: 'localhost',
-                LISTEN_PORT: '1313',
-                BASE_RESOURCE: "${webpackOutputDir}/development"
-        )
+        description = 'Start a Jetty web server serving the Xtex API and assets'
+}
+
+task webpackServe(type: NpmTask) {
+        dependsOn ':language:generateXtext'
+        outputs.dir "${webpackOutputDir}/hmr"
+        args = ['run', 'serve']
+        setEnvironment NODE_ENV: 'hmr'
+        group = 'run'
+        description = 'Start a Webpack dev server with hot module replacement'
 }
 
 eclipse {