Add meta viewport

config.toml

@@ -1,3 +1,21 @@
+[inputs]
+
+[inputs.name]
+default = "example"
+display = "Project Name"
+
+[inputs.basePackage]
+default = "org.example"
+display = "Base package"
+
+[inputs.javaVersion]
+default = "14"
+display = "Java Version"
+
+[inputs.kotlinVersion]
+default = "1.4.10"
+display = "Kotlin Version"
+
 [dependencies]
 
 [dependencies.http4k]

src/main/java/starter/Config.kt

@@ -3,18 +3,25 @@ package starter
 import com.electronwill.nightconfig.core.Config as NightConfig
 import com.electronwill.nightconfig.core.file.FileConfig
 
-data class StarterConfig(val dependencies: List<Dependency>)
+data class StarterConfig(val dependencies: List<Dependency>, val inputs: List<Input>)
 
 class Config {
     fun load(): StarterConfig {
         val cfg = FileConfig.of("config.toml")
         cfg.load()
         val dependenciesNode: NightConfig = cfg["dependencies"]
-        @Suppress("UNCHECKED_CAST") val valueMap = dependenciesNode.valueMap() as Map<String, NightConfig>
-        val dependencies = valueMap.map { (name, values) ->
-            Dependency(name, values.get("groupId"), values.get("artifactId"), values.get("version"), values.getOrElse("default", false))
+        @Suppress("UNCHECKED_CAST") val dependenciesMap = dependenciesNode.valueMap() as Map<String, NightConfig>
+        val dependencies = dependenciesMap.map { (name, values) ->
+            Dependency(name, values["groupId"], values["artifactId"], values["version"], values.getOrElse("default", false))
         }
-        return StarterConfig(dependencies)
+
+        val inputsNode: NightConfig = cfg["inputs"]
+        @Suppress("UNCHECKED_CAST") val inputMap = inputsNode.valueMap() as Map<String, NightConfig>
+        val inputs = inputMap.map { (name, values) ->
+            Input(name, values["display"], values["default"])
+        }
+
+        return StarterConfig(dependencies, inputs)
     }
 
 }

src/main/java/starter/Models.kt

@@ -1,4 +1,4 @@
 package starter
 
 data class Dependency(val name: String, val groupId: String, val artifactId: String, val version: String, val default: Boolean)
-data class Input(val name: String, val value: String? = null)
+data class Input(val name: String, val display: String, val value: String? = null)

src/main/java/starter/Server.kt

@@ -7,23 +7,26 @@ class Server(private val views: Views, private val conf: StarterConfig) {
         val app = Javalin.create().start(7000)
 
         app.get("/") { ctx ->
-            val inputs = listOf(
-                    Input("name", "example"),
-                    Input("basePackage", "org.example")
-            )
-            ctx.result(views.index(conf.dependencies, inputs))
+            ctx.result(views.index(conf.dependencies, conf.inputs))
             ctx.contentType("text/html")
         }
 
         app.post("/") { ctx ->
-            val name = ctx.formParam("name")!!
-            val basePackage = ctx.formParam("basePackage")!!
-
             val deps = conf.dependencies.filter {
                 ctx.formParam(it.name) != null
             }
 
-            ctx.result(views.pom(deps, name, basePackage))
+            val inputKeys = conf.inputs.map { it.name }
+            val inputs = ctx.formParamMap()
+                    .filter { it.key in inputKeys }
+                    .map { (name, value) ->
+                        conf.inputs.find { it.name == name }!!.copy(value = value.first())
+                    }
+
+            println()
+
+            val generatedPom = views.pom(deps, inputs)
+            ctx.result(prettyPrintXml(generatedPom))
             ctx.contentType("text/xml")
         }
     }

src/main/java/starter/Utils.kt

@@ -0,0 +1,49 @@
+package starter
+
+import org.w3c.dom.Document
+import org.w3c.dom.NodeList
+import org.xml.sax.InputSource
+import java.io.ByteArrayInputStream
+import java.io.StringWriter
+import javax.xml.parsers.DocumentBuilderFactory
+import javax.xml.transform.OutputKeys
+import javax.xml.transform.TransformerFactory
+import javax.xml.transform.dom.DOMSource
+import javax.xml.transform.stream.StreamResult
+import javax.xml.xpath.XPathConstants
+import javax.xml.xpath.XPathFactory
+
+
+/*
+    @see https://stackoverflow.com/a/33541820
+ */
+fun prettyPrintXml(xml: String, indent: Int = 4): String {
+    // Turn xml string into a document
+    val document: Document = DocumentBuilderFactory.newInstance()
+            .newDocumentBuilder()
+            .parse(InputSource(ByteArrayInputStream(xml.encodeToByteArray())))
+
+    // Remove whitespaces outside tags
+    document.normalize()
+    val xPath = XPathFactory.newInstance().newXPath()
+    val nodeList = xPath.evaluate("//text()[normalize-space()='']",
+            document,
+            XPathConstants.NODESET) as NodeList
+    for (i in 0 until nodeList.length) {
+        val node = nodeList.item(i)
+        node.parentNode.removeChild(node)
+    }
+
+    // Setup pretty print options
+    val transformerFactory = TransformerFactory.newInstance()
+    transformerFactory.setAttribute("indent-number", indent)
+    val transformer = transformerFactory.newTransformer()
+    transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8")
+    transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes")
+    transformer.setOutputProperty(OutputKeys.INDENT, "yes")
+
+    // Return pretty print xml string
+    val stringWriter = StringWriter()
+    transformer.transform(DOMSource(document), StreamResult(stringWriter))
+    return stringWriter.toString()
+}

src/main/java/starter/Views.kt

@@ -1,7 +1,9 @@
 package starter
 
 import com.mitchellbosecke.pebble.PebbleEngine
+import org.slf4j.LoggerFactory
 import java.io.StringWriter
+import java.util.logging.LogManager
 
 private fun PebbleEngine.render(name: String, args: Map<String, Any?> = mapOf()): String {
     val template = getTemplate(name)
@@ -11,15 +13,25 @@ private fun PebbleEngine.render(name: String, args: Map<String, Any?> = mapOf())
 }
 
 class Views(private val engine: PebbleEngine) {
+    private val logger = LoggerFactory.getLogger(javaClass)
+
     fun index(dependencies: List<Dependency>, inputs: List<Input>) = engine.render("views/index",
             mapOf("dependencies" to dependencies, "inputs" to inputs)
     )
 
-    fun pom(dependencies: List<Dependency>, name: String, basePackage: String) = engine.render("starter/pom",
-            mapOf(
+    fun pom(dependencies: List<Dependency>, inputs: List<Input>): String {
+        val args: MutableMap<String, Any?> = mutableMapOf(
                 "dependencies" to dependencies,
-                    "name" to name,
-                    "basePackage" to basePackage
         )
+
+        inputs.forEach {
+            args[it.name] = it.value
+        }
+
+        logger.debug(args.toString())
+
+        return engine.render("starter/pom",
+                args
         )
     }
+}

src/main/resources/starter/plugins/@kotlin.twig

@@ -19,6 +19,6 @@
         </execution>
     </executions>
     <configuration>
-        <jvmTarget>14</jvmTarget>
+        <jvmTarget>${java.version}</jvmTarget>
     </configuration>
 </plugin>

src/main/resources/starter/pom.twig

@@ -6,8 +6,10 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <maven.compiler.target>14</maven.compiler.target>
-        <maven.compiler.source>14</maven.compiler.source>
+        <java.version>{{ javaVersion }}</java.version>
+        <kotlin.version>{{ kotlinVersion }}</kotlin.version>
+        <maven.compiler.target>${java.version}</maven.compiler.target>
+        <maven.compiler.source>${java.version}</maven.compiler.source>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <main.class>{{ basePackage }}/{{ name | lower | capitalize }}Kt</main.class>
     </properties>

src/main/resources/views/@base.twig

@@ -2,6 +2,7 @@
 <html lang="en">
 <head>
     <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
     <title>Kotlin Starter</title>
 </head>
 <body>

src/main/resources/views/index.twig

@@ -9,7 +9,7 @@
 
 {% macro input(input) %}
     <label>
-        <span>{{ input.name }}</span>
+        <span>{{ input.display }}</span>
         <input name="{{ input.name }}" type="text"{% if input.value %} value="{{ input.value }}"{% endif %}>
     </label>
 {% endmacro %}