Add junit properties

.editorconfig

@@ -0,0 +1,18 @@
+# editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{kt, kts}]
+indent_size = 4
+insert_final_newline = true
+continuation_indent_size=4
+max_line_length = 120
+disabled_rules = no-wildcard-imports
+kotlin_imports_layout = idea

.gitignore

@@ -39,3 +39,4 @@ node_modules/
 .yarn-integrity
 yarn-debug.log*
 yarn-error.log*
+*.zip

Dockerfile

@@ -0,0 +1,25 @@
+FROM openjdk:14-alpine as jdkbuilder
+RUN apk add --no-cache binutils
+ENV MODULES java.base,java.xml,jdk.httpserver
+RUN jlink --output /myjdk --module-path $JAVA_HOME/jmods --add-modules $MODULES --no-header-files --no-man-pages --strip-debug --compress=2
+RUN strip -p --strip-unneeded /myjdk/lib/server/libjvm.so
+
+FROM maven:3.6.3-jdk-14 as builder
+WORKDIR /app
+COPY pom.xml .
+RUN mvn verify clean --fail-never
+COPY src/main src/main
+RUN mvn package
+
+FROM alpine
+ENV APPLICATION_USER app
+RUN adduser -D -g '' $APPLICATION_USER
+RUN mkdir /app
+RUN chown -R $APPLICATION_USER /app
+USER $APPLICATION_USER
+COPY --from=builder /app/target/kotlin-starter*.jar /app/app.jar
+COPY --from=jdkbuilder /myjdk /myjdk
+COPY config.toml /app/config.toml
+WORKDIR /app
+EXPOSE 7000
+CMD ["/myjdk/bin/java", "-server", "-Xmx64m", "-XX:+UseG1GC", "-XX:+UseStringDeduplication", "-jar", "app.jar"]

config.toml

@@ -16,92 +16,132 @@ display = "Java Version"
 default = "1.4.10"
 display = "Kotlin Version"
 
+[versions]
+http4k = "3.265.0"
+pebble = "3.1.4"
+caffeine = "2.8.5"
+logback = "1.2.3"
+mariadb = "2.6.2"
+h2 = "1.4.200"
+flyway = "7.0.0"
+hikaricp = "3.4.5"
+ktorm = "3.0.0"
+junit = "5.7.0"
+mokk = "1.10.0"
+hamkrest = "1.7.0.3"
+assertj = "3.17.2"
+kodein-di = "7.1.0"
+koin = "2.1.6"
+jackson = "2.11.2"
+kotlinx-serialization = "1.0-M1-1.4.0-rc"
+arrow-core = "0.10.5"
+
+[repositories]
+
+[repositories.jcenter]
+url = "https://jcenter.bintray.com"
+
+[repositories.arrow]
+url = "https://dl.bintray.com/arrow-kt/arrow-kt/"
+
 [dependencies]
 
 [dependencies.http4k]
 groupId = "org.http4k"
 artifactId = "http4k-core"
-version = "3.260.0"
+category = "http4k"
-category = "server"
 default = true
 
 [dependencies.http4k-server-jetty]
 groupId = "org.http4k"
 artifactId = "http4k-server-jetty"
-version = "3.260.0"
+version = "http4k"
-category = "server"
+category = "http4k"
 default = true
+logger = "org.eclipse.jetty"
 
 [dependencies.http4k-server-apache]
 groupId = "org.http4k"
 artifactId = "http4k-server-apache"
-version = "3.260.0"
+version = "http4k"
-category = "server"
+category = "http4k"
 
 [dependencies.http4k-client-apache]
 groupId = "org.http4k"
-artifactId = "http4k-server-apache"
+artifactId = "http4k-client-apache"
-version = "3.260.0"
+version = "http4k"
-category = "server"
+category = "http4k"
 
-[dependencies.javalin]
+[dependencies.http4k-format-jackson]
-groupId = "io.javalin"
+groupId = "org.http4k"
-artifactId = "javalin"
+artifactId = "http4k-format-jackson"
-version = "3.10.1"
+version = "http4k"
-category = "server"
+category = "http4k"
+
+[dependencies.http4k-format-kotlinx-serialization]
+groupId = "org.http4k"
+artifactId = "http4k-format-kotlinx-serialization"
+version = "http4k"
+category = "http4k"
+
+[dependencies.http4k-contract]
+groupId = "org.http4k"
+artifactId = "http4k-contract"
+version = "http4k"
+category = "http4k"
 
 [dependencies.pebble]
 groupId = "io.pebbletemplates"
 artifactId = "pebble"
-version = "3.1.4"
 default = true
+logger = "com.mitchellbosecke.pebble"
+
+[dependencies.caffeine]
+groupId = "com.github.ben-manes.caffeine"
+artifactId = "caffeine"
 
 [dependencies.logback]
 groupId = "ch.qos.logback"
 artifactId = "logback-classic"
-version = "1.2.3"
 default = true
 
 [dependencies.mariadb]
 groupId = "org.mariadb.jdbc"
 artifactId = "mariadb-java-client"
-version = "2.6.2"
 category = "database"
 
 [dependencies.h2]
 groupId = "com.h2database"
 artifactId = "h2"
-version = "1.4.200"
 category = "database"
 
 [dependencies.flyway]
 groupId = "org.flywaydb"
 artifactId = "flyway-core"
-version = "6.5.4"
 category = "database"
+logger = "org.flywaydb.core"
 
-[dependencies.HikariCP]
+[dependencies.hikaricp]
 groupId = "com.zaxxer"
 artifactId = "HikariCP"
-version = "3.4.5"
 category = "database"
+logger = "com.zaxxer.hikari"
 
-[dependencies.Ktorm]
+[dependencies.ktorm]
 groupId = "me.liuwj.ktorm"
 artifactId = "ktorm-core"
-version = "3.0.0"
 category = "database"
+logger = "me.liuwj.ktorm.database"
 
-[dependencies.Ktorm-Mysql]
+[dependencies.ktorm-mysql]
 groupId = "me.liuwj.ktorm"
 artifactId = "ktorm-support-mysql"
-version = "3.0.0"
+version = "ktorm"
 category = "database"
 
 [dependencies.junit]
 groupId = "org.junit.jupiter"
 artifactId = "junit-jupiter"
-version = "5.6.2"
 scope = "test"
 category = "test"
 default = true
@@ -109,7 +149,7 @@ default = true
 [dependencies.junit-params]
 groupId = "org.junit.jupiter"
 artifactId = "junit-jupiter-params"
-version = "5.6.2"
+version = "junit"
 scope = "test"
 category = "test"
 default = true
@@ -117,34 +157,46 @@ default = true
 [dependencies.mokk]
 groupId = "io.mockk"
 artifactId = "mockk"
-version = "1.10.0"
 scope = "test"
 category = "test"
 
 [dependencies.hamkrest]
 groupId = "com.natpryce"
 artifactId = "hamkrest"
-version = "1.7.0.3"
 scope = "test"
 category = "test"
 
-[dependencies.assertJ]
+[dependencies.assertj]
 groupId = "org.assertj"
 artifactId = "assertj-core"
-version = "3.16.1"
 scope = "test"
 category = "test"
 default = true
 
-[dependencies.Kodein-DI]
+[dependencies.kodein-di]
 groupId = "org.kodein.di"
 artifactId = "kodein-di-jvm"
-version = "7.0.0"
 category = "injection"
+repository = "jcenter"
 
-[dependencies.Koin]
+[dependencies.koin]
 groupId = "org.koin"
 artifactId = "koin-core"
-version = "2.1.6"
 category = "injection"
+repository = "jcenter"
 default = true
+
+[dependencies.jackson]
+groupId = "com.fasterxml.jackson.module"
+artifactId = "jackson-module-kotlin"
+category = "serialization"
+
+[dependencies.kotlinx-serialization]
+groupId = "org.jetbrains.kotlinx"
+artifactId = "kotlinx-serialization-runtime"
+category = "serialization"
+
+[dependencies.arrow-core]
+groupId = "io.arrow-kt"
+artifactId = "arrow-core"
+repository = "arrow"

pom.xml

@@ -10,6 +10,7 @@
         <maven.compiler.source>11</maven.compiler.source>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <kotlin.version>1.4.10</kotlin.version>
+        <kotlin.code.style>official</kotlin.code.style>
     </properties>
 
     <repositories>
@@ -26,11 +27,6 @@
             <artifactId>pebble</artifactId>
             <version>3.1.4</version>
         </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
-        </dependency>
         <dependency>
             <groupId>com.electronwill.night-config</groupId>
             <artifactId>toml</artifactId>
@@ -42,9 +38,9 @@
             <version>${kotlin.version}</version>
         </dependency>
         <dependency>
-            <groupId>io.javalin</groupId>
+            <groupId>org.http4k</groupId>
-            <artifactId>javalin</artifactId>
+            <artifactId>http4k-core</artifactId>
-            <version>3.10.1</version>
+            <version>3.265.0</version>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
@@ -56,6 +52,24 @@
             <artifactId>koin-core</artifactId>
             <version>2.1.6</version>
         </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-simple</artifactId>
+            <version>1.7.30</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.7.0</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>3.17.2</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -74,13 +88,35 @@
                             <goal>shade</goal>
                         </goals>
                         <configuration>
-                            <minimizeJar>false</minimizeJar>
+                            <minimizeJar>true</minimizeJar>
                             <transformers>
                                 <transformer
                                         implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                     <mainClass>starter.KotlinStarterKt</mainClass>
                                 </transformer>
                             </transformers>
+                            <filters>
+                                <filter>
+                                    <artifact>com.electronwill.night-config:*</artifact>
+                                    <includes>
+                                        <include>**</include>
+                                    </includes>
+                                </filter>
+                                <filter>
+                                    <artifact>*:*</artifact>
+                                    <excludes>
+                                        <exclude>META-INF/maven/**</exclude>
+                                        <exclude>META-INF/proguard/**</exclude>
+                                        <exclude>META-INF/*.kotlin_module</exclude>
+                                        <exclude>META-INF/DEPENDENCIES*</exclude>
+                                        <exclude>META-INF/NOTICE*</exclude>
+                                        <exclude>META-INF/LICENSE*</exclude>
+                                        <exclude>LICENSE*</exclude>
+                                        <exclude>META-INF/README*</exclude>
+                                        <exclude>META-INF/native-image/**</exclude>
+                                    </excludes>
+                                </filter>
+                            </filters>
                         </configuration>
                     </execution>
                 </executions>

src/css/tailwind.config.js

@@ -1,7 +1,8 @@
 module.exports = {
     purge: {
         content: [
-            '../main/resources/views/**/*.twig'
+            '../main/resources/views/**/*.twig',
+            '../main/kotlin/starter/PebbleModule.kt',
         ]
     },
     theme: {},

src/main/kotlin/starter/Config.kt

@@ -1,35 +0,0 @@
-package starter
-
-import com.electronwill.nightconfig.core.file.FileConfig
-import com.electronwill.nightconfig.core.Config as NightConfig
-
-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 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),
-                    values.getEnumOrElse("category", Category.Other),
-                    values.getEnumOrElse("scope", Scope.Compile),
-            )
-        }
-
-        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/kotlin/starter/KotlinStarter.kt

@@ -1,29 +1,13 @@
 package starter
 
 import org.koin.core.context.startKoin
-import org.koin.dsl.bind
+import starter.modules.mainModule
-import org.koin.dsl.module
+import starter.modules.pebbleModule
-import starter.templates.MainTemplate
+import starter.modules.routesModule
-import starter.templates.PomTemplate
+import starter.modules.templateModule
-import starter.templates.Template
-
-val mainModule = module {
-    single { Config().load() }
-    single { PebbleModule().engine() }
-    single { Server(get(), get(), get()) }
-    single { Views(get()) }
-    single { ProjectZip(getAll()) }
-}
-
-val templateModule = module {
-    single { PomTemplate(get()) } bind Template::class
-    single { MainTemplate(get()) } bind Template::class
-}
 
 fun main() {
-    val koin = startKoin {
+    startKoin {
-        modules(mainModule, templateModule)
+        modules(mainModule, pebbleModule, templateModule, routesModule)
-    }.koin
+    }
-    val server = koin.get<Server>()
-    server.run()
 }

src/main/kotlin/starter/Models.kt

@@ -1,7 +1,7 @@
 package starter
 
 enum class Category {
-    Server, Injection, Database, Test, Other
+    Http4k, Injection, Database, Serialization, Test, Other
 }
 
 enum class Scope {
@@ -12,12 +12,16 @@ data class Dependency(
     val name: String,
     val groupId: String,
     val artifactId: String,
-        val version: String,
+    val version: Version,
     val default: Boolean,
     val category: Category,
-        val scope: Scope
+    val scope: Scope,
+    val logger: String?,
+    val repository: Repository?,
 )
 
+data class Repository(val name: String, val url: String)
+
 data class Input(val name: String, val display: String, val value: String? = null)
 
 data class Project(
@@ -25,4 +29,7 @@ data class Project(
     val basePackage: String,
     val inputs: List<Input>,
     val dependencies: List<Dependency>,
+    val repositories: Collection<Repository>,
 )
+
+data class Version(val name: String, val value: String)

src/main/kotlin/starter/PebbleModule.kt

@@ -1,15 +0,0 @@
-package starter
-
-import com.mitchellbosecke.pebble.PebbleEngine
-import com.mitchellbosecke.pebble.loader.ClasspathLoader
-
-class PebbleModule {
-    fun engine(): PebbleEngine {
-        val loader = ClasspathLoader()
-        loader.suffix = ".twig"
-        return PebbleEngine.Builder()
-                .loader(loader)
-                .cacheActive(false)
-                .build()
-    }
-}

src/main/kotlin/starter/ProjectZip.kt

@@ -3,21 +3,18 @@ package starter
 import starter.templates.Template
 import starter.utils.ZipOutput
 import starter.utils.sanitizeFilename
+import java.io.ByteArrayOutputStream
 
 class ProjectZip(private val templates: List<Template>) {
 
-    fun createZip(project: Project): String {
+    fun createZip(project: Project): ByteArrayOutputStream {
-        val name: String
+        val projectName = sanitizeFilename(project.name)
-
+        val zipOutput = ZipOutput()
-        ZipOutput(sanitizeFilename(project.name)).use {
+        zipOutput.use { zip ->
-            name = it.name
+            templates.filter { it.enabled(project) }.forEach { template ->
-
+                zip.write(projectName + "/" + template.path(project), template.render(project))
-            templates.forEach { template ->
-                it.write(template.path(project), template.render(project))
             }
         }
-
+        return zipOutput.outputStream
-        return name
     }
-
 }

src/main/kotlin/starter/Server.kt

@@ -1,44 +0,0 @@
-package starter
-
-import io.javalin.Javalin
-import starter.utils.sanitizeFilename
-import java.io.File
-
-class Server(
-        private val views: Views,
-        private val conf: StarterConfig,
-        private val projectZip: ProjectZip,
-) {
-    fun run() {
-        val app = Javalin.create {
-            it.addStaticFiles("/assets")
-        }.start(7000)
-
-        app.get("/") { ctx ->
-            ctx.result(views.index(conf.dependencies, conf.inputs))
-            ctx.contentType("text/html")
-        }
-
-        app.post("/") { ctx ->
-            val deps = conf.dependencies.filter {
-                ctx.formParam(it.name) != null
-            }
-
-            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())
-                    }
-
-            val projectName = inputs.find { it.name == "name" }!!.value!!
-            val basePackage = inputs.find { it.name == "basePackage" }!!.value!!
-            val project = Project(projectName, basePackage, inputs, deps)
-
-            ctx.contentType("application/zip")
-            ctx.header("Content-Disposition", "attachment; filename=\"${sanitizeFilename(projectName)}.zip\"")
-            val zipFile = projectZip.createZip(project)
-            ctx.result(File(zipFile).readBytes())
-        }
-    }
-}

src/main/kotlin/starter/Views.kt

@@ -1,17 +0,0 @@
-package starter
-
-import com.mitchellbosecke.pebble.PebbleEngine
-import org.slf4j.LoggerFactory
-import starter.utils.render
-
-class Views(private val engine: PebbleEngine) {
-    private val logger = LoggerFactory.getLogger(javaClass)
-
-    fun index(dependencies: List<Dependency>, inputs: List<Input>): String {
-        val dependenciesByCategory = dependencies.groupBy { it.category }.toSortedMap()
-        return engine.render("views/index",
-                mapOf("dependencies" to dependenciesByCategory, "inputs" to inputs)
-        )
-    }
-
-}

src/main/kotlin/starter/config/Config.kt

@@ -0,0 +1,58 @@
+package starter.config
+
+import com.electronwill.nightconfig.core.UnmodifiableConfig
+import com.electronwill.nightconfig.core.file.FileConfig
+import starter.*
+import com.electronwill.nightconfig.core.Config as NightConfig
+
+data class StarterConfig(
+    val dependencies: List<Dependency>,
+    val inputs: List<Input>,
+)
+
+class Config {
+
+    @Suppress("UNCHECKED_CAST")
+    private fun FileConfig.configMap(key: String) = this.get<NightConfig>(key).valueMap() as Map<String, NightConfig>
+
+    fun load(): StarterConfig {
+        val cfg = FileConfig.of("config.toml")
+        cfg.load()
+
+        @Suppress("UNCHECKED_CAST")
+        val versions = cfg.get<UnmodifiableConfig>("versions").valueMap() as Map<String, String>
+
+        val repositories = cfg.configMap("repositories")
+            .map { (name, values) ->
+                Repository(name, values["url"])
+            }
+
+        val dependencies = cfg.configMap("dependencies")
+            .map { (name, values) ->
+                val versionKey: String = values["version"] ?: name
+                val version = versions[versionKey] ?: error("Missing version for $name")
+
+                val repositoryName: String? = values["repository"]
+                val repo = repositoryName?.let { repoName -> repositories.find { it.name == repoName } }
+
+                Dependency(
+                    name = name,
+                    groupId = values["groupId"],
+                    artifactId = values["artifactId"],
+                    version = Version(versionKey, version),
+                    default = values.getOrElse("default", false),
+                    category = values.getEnumOrElse("category", Category.Other),
+                    scope = values.getEnumOrElse("scope", Scope.Compile),
+                    logger = values["logger"],
+                    repository = repo,
+                )
+            }
+
+        val inputs = cfg.configMap("inputs")
+            .map { (name, values) ->
+                Input(name, values["display"], values["default"])
+            }
+
+        return StarterConfig(dependencies, inputs)
+    }
+}

src/main/kotlin/starter/extensions/Http4kExtensions.kt

@@ -0,0 +1,17 @@
+@file:Suppress("NOTHING_TO_INLINE")
+
+package starter.extensions
+
+import org.http4k.core.Response
+import org.http4k.core.Status
+import starter.utils.sanitizeFilename
+import java.io.InputStream
+
+inline fun Response.Companion.ok() = Response(Status.OK)
+inline fun Response.Companion.badRequest() = Response(Status.BAD_REQUEST)
+
+fun attachment(value: InputStream, name: String, contentType: String) = { res: Response ->
+    res.header("Content-Type", contentType)
+        .header("Content-Disposition", "attachment; filename=\"${sanitizeFilename(name)}\"")
+        .body(value)
+}

src/main/kotlin/starter/modules/MainModule.kt

@@ -0,0 +1,24 @@
+package starter.modules
+
+import org.http4k.routing.RoutingHttpHandler
+import org.http4k.server.SunHttp
+import org.http4k.server.asServer
+import org.koin.dsl.module
+import org.koin.dsl.onClose
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+import starter.ProjectZip
+import starter.config.Config
+import starter.views.Views
+
+val mainModule = module {
+    single(createdAtStart = true) {
+        get<Logger>().info("Starting on http://localhost:7000")
+        get<RoutingHttpHandler>().asServer(SunHttp(7000)).start()
+    } onClose { it?.stop() }
+
+    single { Config().load() }
+    single { LoggerFactory.getLogger("Starter") }
+    single { Views(get(), get()) }
+    single { ProjectZip(getAll()) }
+}

src/main/kotlin/starter/modules/PebbleModule.kt

@@ -0,0 +1,58 @@
+package starter.modules
+
+import com.mitchellbosecke.pebble.extension.escaper.SafeString
+import com.mitchellbosecke.pebble.template.EvaluationContext
+import com.mitchellbosecke.pebble.template.PebbleTemplate
+import org.intellij.lang.annotations.Language
+import org.koin.dsl.bind
+import org.koin.dsl.module
+import starter.Dependency
+import starter.utils.PebbleEngineBuilder
+import starter.utils.PebbleEngineBuilder.CacheType.ConcurrentMap
+import starter.utils.PebbleFunction
+
+class DepAsXmlPebbleFunction : PebbleFunction {
+    override val name = "depAsXml"
+    override fun getArgumentNames() = listOf("dependency")
+    override fun execute(args: Map<String, Any>, self: PebbleTemplate, context: EvaluationContext, lineNumber: Int): Any {
+        val dep = args["dependency"] as Dependency
+
+        fun startTag(name: String): String {
+            @Language("html") @Suppress("UnnecessaryVariable")
+            val result = """<span class="text-gray-700">&lt;</span><span class="text-red-700">$name</span><span class="text-gray-700">&gt;</span>"""
+            return result
+        }
+
+        fun endTag(name: String): String {
+            @Language("html") @Suppress("UnnecessaryVariable")
+            val result = """<span class="text-gray-700">&lt;/</span><span class="text-red-700">$name</span><span class="text-gray-700">&gt;</span>"""
+            return result
+        }
+
+        fun tag(name: String, content: String): String {
+            return """${startTag(name)}$content${endTag(name)}"""
+        }
+
+        val result = """
+            |${startTag("dependency")}
+            |   ${tag("groupId", dep.groupId)}
+            |   ${tag("artifactId", dep.artifactId)}
+            |   ${tag("version", dep.version.value)}
+            |${endTag("dependency")}
+        """.trimMargin()
+
+        return SafeString(result)
+    }
+}
+
+val pebbleModule = module {
+    single { DepAsXmlPebbleFunction() } bind PebbleFunction::class
+
+    single {
+        PebbleEngineBuilder {
+            cache = ConcurrentMap
+            functions(getAll())
+            classPath { suffix = ".twig" }
+        }
+    }
+}

src/main/kotlin/starter/modules/RoutesModule.kt

@@ -0,0 +1,25 @@
+package starter.modules
+
+import org.http4k.core.then
+import org.http4k.filter.ServerFilters
+import org.http4k.routing.ResourceLoader
+import org.http4k.routing.routes
+import org.http4k.routing.static
+import org.koin.dsl.bind
+import org.koin.dsl.module
+import starter.routes.IndexRouteSupplier
+import starter.routes.RouteSupplier
+import starter.routes.ZipRouteSupplier
+import starter.routes.toRouter
+
+val routesModule = module {
+    single { IndexRouteSupplier(get()) } bind RouteSupplier::class
+    single { ZipRouteSupplier(get(), get()) } bind RouteSupplier::class
+    single {
+        ServerFilters.CatchAll().then(
+            routes(
+                static(ResourceLoader.Classpath("/assets")),
+                getAll<RouteSupplier>().toRouter()
+            ))
+    }
+}

src/main/kotlin/starter/modules/TemplateModule.kt

@@ -0,0 +1,13 @@
+package starter.modules
+
+import org.koin.dsl.bind
+import org.koin.dsl.module
+import starter.templates.*
+
+val templateModule = module {
+    single { PomTemplate(get()) } bind Template::class
+    single { MainTemplate(get()) } bind Template::class
+    single { LogbackTemplate(get()) } bind Template::class
+    single { GitignoreTemplate(get()) } bind Template::class
+    single { JunitTemplate(get()) } bind Template::class
+}

src/main/kotlin/starter/routes/IndexRouteSupplier.kt

@@ -0,0 +1,15 @@
+package starter.routes
+
+import org.http4k.core.Method
+import org.http4k.core.Response
+import org.http4k.core.Status
+import org.http4k.routing.bind
+import starter.views.Views
+
+class IndexRouteSupplier(private val views: Views) : RouteSupplier {
+    override fun get() = "/" bind Method.GET to {
+        Response(Status.OK)
+            .body(views.index())
+            .header("Content-Type", "text/html")
+    }
+}

src/main/kotlin/starter/routes/RouteSupplier.kt

@@ -0,0 +1,10 @@
+package starter.routes
+
+import org.http4k.routing.RoutingHttpHandler
+import org.http4k.routing.routes
+
+interface RouteSupplier {
+    fun get(): RoutingHttpHandler
+}
+
+fun List<RouteSupplier>.toRouter() = routes(*map { it.get() }.toTypedArray())

src/main/kotlin/starter/routes/ZipRouteSupplier.kt

@@ -0,0 +1,54 @@
+package starter.routes
+
+import org.http4k.core.Method
+import org.http4k.core.Response
+import org.http4k.core.body.form
+import org.http4k.core.body.formAsMap
+import org.http4k.core.with
+import org.http4k.routing.bind
+import starter.Project
+import starter.ProjectZip
+import starter.config.StarterConfig
+import starter.extensions.attachment
+import starter.extensions.badRequest
+import starter.extensions.ok
+import java.io.ByteArrayInputStream
+
+class ZipRouteSupplier(
+        private val conf: StarterConfig,
+        private val projectZip: ProjectZip,
+) : RouteSupplier {
+
+    override fun get() = "/" bind Method.POST to { req ->
+
+        val deps = conf.dependencies.filter {
+            req.form(it.name) != null
+        }
+
+        val inputKeys = conf.inputs.map { it.name }
+        val inputs = req.formAsMap()
+            .filter { it.key in inputKeys }
+            .map { (name, value) ->
+                conf.inputs.find { it.name == name }!!.copy(value = value.first())
+            }
+
+        val projectName = inputs.find { it.name == "name" }!!.value!!
+        val basePackage = inputs.find { it.name == "basePackage" }!!.value!!
+
+        if (basePackage.contains("/") || basePackage.contains("..")) {
+            Response.badRequest()
+        } else {
+            val repositories = deps.mapNotNull { it.repository }.toSet()
+            val project = Project(projectName, basePackage, inputs, deps, repositories)
+            val outputStream = projectZip.createZip(project)
+
+            Response.ok().with(
+                attachment(
+                    value = ByteArrayInputStream(outputStream.toByteArray()),
+                    name = "$projectName.zip",
+                    contentType = "application/zip"
+                )
+            )
+        }
+    }
+}

src/main/kotlin/starter/templates/GitignoreTemplate.kt

@@ -0,0 +1,13 @@
+package starter.templates
+
+import com.mitchellbosecke.pebble.PebbleEngine
+import starter.Project
+import starter.utils.render
+
+class GitignoreTemplate(private val engine: PebbleEngine) : Template {
+    override fun path(project: Project) =
+        ".gitignore"
+
+    override fun render(project: Project) =
+        engine.render("starter/gitignore/index")
+}

src/main/kotlin/starter/templates/JunitTemplate.kt

@@ -0,0 +1,12 @@
+package starter.templates
+
+import com.mitchellbosecke.pebble.PebbleEngine
+import starter.Project
+import starter.utils.prettyPrintXml
+import starter.utils.render
+
+class JunitTemplate(private val engine: PebbleEngine) : Template {
+    override fun path(project: Project) = "src/test/resources/junit-platform.properties"
+    override fun enabled(project: Project) = project.dependencies.any { it.name == "junit" }
+    override fun render(project: Project) = engine.render("starter/junit/index")
+}

src/main/kotlin/starter/templates/LogbackTemplate.kt

@@ -0,0 +1,20 @@
+package starter.templates
+
+import com.mitchellbosecke.pebble.PebbleEngine
+import starter.Project
+import starter.utils.prettyPrintXml
+import starter.utils.render
+
+class LogbackTemplate(private val engine: PebbleEngine) : Template {
+    override fun path(project: Project) = "src/main/resources/logback.xml"
+
+    override fun enabled(project: Project) = project.dependencies.any { it.name == "logback" }
+
+    override fun render(project: Project): String {
+        val args = mapOf(
+            "loggers" to project.dependencies.mapNotNull { it.logger }.toSet()
+        )
+        val rendered = engine.render("starter/logback/index", args)
+        return prettyPrintXml(rendered)
+    }
+}

src/main/kotlin/starter/templates/MainTemplate.kt

@@ -6,8 +6,8 @@ import starter.utils.render
 
 class MainTemplate(private val engine: PebbleEngine) : Template {
     override fun path(project: Project) =
-            project.basePackage.replace('.', '/') + "/" + project.name.toLowerCase().capitalize() + ".kt"
+        "src/main/kotlin/" + project.basePackage.replace('.', '/') + "/" + project.name.toLowerCase().capitalize() + ".kt"
 
     override fun render(project: Project) =
-            engine.render("starter/main/main", mapOf("basePackage" to project.basePackage))
+        engine.render("starter/main/index", mapOf("basePackage" to project.basePackage))
 }

src/main/kotlin/starter/templates/PomTemplate.kt

@@ -2,6 +2,7 @@ package starter.templates
 
 import com.mitchellbosecke.pebble.PebbleEngine
 import starter.Project
+import starter.Version
 import starter.utils.prettyPrintXml
 import starter.utils.render
 
@@ -11,13 +12,16 @@ class PomTemplate(private val engine: PebbleEngine) : Template {
     override fun render(project: Project): String {
         val args: MutableMap<String, Any?> = mutableMapOf(
             "dependencies" to project.dependencies.sortedBy { it.scope },
+            "repositories" to project.repositories,
+            "kotlinxSerialization" to project.dependencies.any { it.name == "kotlinx-serialization" },
+            "versions" to project.dependencies.map { it.version }.toSet()
         )
 
         project.inputs.forEach {
             args[it.name] = it.value
         }
 
-        val rendered = engine.render("starter/pom/pom", args)
+        val rendered = engine.render("starter/pom/index", args)
         return prettyPrintXml(rendered)
     }
 }

src/main/kotlin/starter/templates/Template.kt

@@ -4,5 +4,6 @@ import starter.Project
 
 interface Template {
     fun path(project: Project): String
+    fun enabled(project: Project): Boolean = true
     fun render(project: Project): String
 }

src/main/kotlin/starter/utils/PebbleUtils.kt

@@ -1,11 +1,87 @@
 package starter.utils
 
 import com.mitchellbosecke.pebble.PebbleEngine
+import com.mitchellbosecke.pebble.cache.tag.CaffeineTagCache
+import com.mitchellbosecke.pebble.cache.tag.ConcurrentMapTagCache
+import com.mitchellbosecke.pebble.cache.tag.NoOpTagCache
+import com.mitchellbosecke.pebble.cache.template.CaffeineTemplateCache
+import com.mitchellbosecke.pebble.cache.template.ConcurrentMapTemplateCache
+import com.mitchellbosecke.pebble.cache.template.NoOpTemplateCache
+import com.mitchellbosecke.pebble.extension.AbstractExtension
+import com.mitchellbosecke.pebble.extension.Filter
+import com.mitchellbosecke.pebble.extension.Function
+import com.mitchellbosecke.pebble.loader.ClasspathLoader
 import java.io.StringWriter
 
-fun PebbleEngine.render(name: String, args: Map<String, Any?> = mapOf()): String {
+fun PebbleEngine.render(name: String, args: Map<String, Any?> = mapOf()) =
-    val template = getTemplate(name)
+    getTemplate(name).let { StringWriter().apply { it.evaluate(this, args) }.toString() }
-    val writer = StringWriter()
+
-    template.evaluate(writer, args)
+fun PebbleEngine.render(name: String, vararg args: Pair<String, Any?>) =
-    return writer.toString()
+    render(name, mapOf(*args))
+
+interface PebbleFunction : Function {
+    val name: String
+}
+
+interface PebbleFilter : Filter {
+    val name: String
+}
+
+class PebbleEngineBuilder {
+    enum class CacheType {
+        None, Caffeine, ConcurrentMap
+    }
+
+    private var loader = ClasspathLoader()
+    var cache = CacheType.ConcurrentMap
+
+    private val functions = mutableListOf<PebbleFunction>()
+    private val filters = mutableListOf<PebbleFilter>()
+
+    fun function(function: PebbleFunction) {
+        functions.add(function)
+    }
+
+    fun functions(functions: Iterable<PebbleFunction>) {
+        this.functions.addAll(functions)
+    }
+
+    fun filter(filter: PebbleFilter) {
+        filters.add(filter)
+    }
+
+    fun filters(filters: Iterable<PebbleFilter>) {
+        this.filters.addAll(filters)
+    }
+
+    fun classPath(block: ClasspathLoader.() -> Unit) {
+        loader = ClasspathLoader().apply(block)
+    }
+
+    companion object {
+        operator fun invoke(block: PebbleEngineBuilder.() -> Unit): PebbleEngine =
+            PebbleEngineBuilder().apply(block).let { builder ->
+                PebbleEngine.Builder()
+                    .loader(builder.loader)
+                    .cacheActive(builder.cache != CacheType.None)
+                    .templateCache(when (builder.cache) {
+                        CacheType.None -> NoOpTemplateCache()
+                        CacheType.Caffeine -> CaffeineTemplateCache()
+                        CacheType.ConcurrentMap -> ConcurrentMapTemplateCache()
+                    })
+                    .tagCache(when (builder.cache) {
+                        CacheType.None -> NoOpTagCache()
+                        CacheType.Caffeine -> CaffeineTagCache()
+                        CacheType.ConcurrentMap -> ConcurrentMapTagCache()
+                    })
+                    .extension(object : AbstractExtension() {
+                        override fun getFunctions(): Map<String, Function>? =
+                            builder.functions.associateBy { it.name }.ifEmpty { null }
+
+                        override fun getFilters(): Map<String, Filter>? =
+                            builder.filters.associateBy { it.name }.ifEmpty { null }
+                    })
+                    .build()
+            }
+    }
 }

src/main/kotlin/starter/utils/XmlUtils.kt

@@ -13,7 +13,6 @@ import javax.xml.transform.stream.StreamResult
 import javax.xml.xpath.XPathConstants
 import javax.xml.xpath.XPathFactory
 
-
 /*
     @see https://stackoverflow.com/a/33541820
  */
@@ -26,9 +25,11 @@ fun prettyPrintXml(xml: String, indent: Int = 4): String {
     // Remove whitespaces outside tags
     document.normalize()
     val xPath = XPathFactory.newInstance().newXPath()
-    val nodeList = xPath.evaluate("//text()[normalize-space()='']",
+    val nodeList = xPath.evaluate(
+        "//text()[normalize-space()='']",
         document,
-            XPathConstants.NODESET) as NodeList
+        XPathConstants.NODESET
+    ) as NodeList
     for (i in 0 until nodeList.length) {
         val node = nodeList.item(i)
         node.parentNode.removeChild(node)

src/main/kotlin/starter/utils/ZipOutput.kt

@@ -2,28 +2,21 @@ package starter.utils
 
 import org.apache.commons.compress.archivers.zip.ZipArchiveEntry
 import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream
-import java.io.File
+import java.io.ByteArrayOutputStream
-import java.nio.file.Paths
 
-class ZipOutput(name: String) : AutoCloseable {
+class ZipOutput : AutoCloseable {
-    private val baseDir = File(".").canonicalFile
+    val outputStream = ByteArrayOutputStream()
-    private val zipPath = Paths.get(baseDir.path, "$name.zip")
+    private val zipOutputStream = ZipArchiveOutputStream(outputStream)
-    private val zipFile = zipPath.toAbsolutePath().normalize().toFile().apply {
-        createNewFile()
-    }
-    private val outputStream = ZipArchiveOutputStream(zipFile.outputStream())
-    val name: String
-        get() = zipFile.name
 
     fun write(path: String, content: String) {
         val entry = ZipArchiveEntry(path)
-        outputStream.putArchiveEntry(entry)
+        zipOutputStream.putArchiveEntry(entry)
-        outputStream.write(content.toByteArray())
+        zipOutputStream.write(content.toByteArray())
-        outputStream.closeArchiveEntry()
+        zipOutputStream.closeArchiveEntry()
     }
 
     override fun close() {
-        outputStream.finish()
+        zipOutputStream.finish()
-        outputStream.close()
+        zipOutputStream.close()
     }
 }

src/main/kotlin/starter/views/Views.kt

@@ -0,0 +1,14 @@
+package starter.views
+
+import com.mitchellbosecke.pebble.PebbleEngine
+import starter.config.StarterConfig
+import starter.utils.render
+
+class Views(private val engine: PebbleEngine, config: StarterConfig) {
+    private val args = mapOf(
+        "dependencies" to config.dependencies.groupBy { it.category }.toSortedMap(),
+        "inputs" to config.inputs
+    )
+
+    fun index() = engine.render("views/index", args)
+}

src/main/resources/starter/gitignore/index.twig

@@ -0,0 +1,5 @@
+target/
+.idea/
+*.iml
+*.ipr
+*.iws

src/main/resources/starter/junit/index.twig

@@ -0,0 +1,4 @@
+junit.jupiter.testinstance.lifecycle.default=per_class
+junit.jupiter.execution.parallel.enabled=true
+junit.jupiter.execution.parallel.mode.default=same_thread
+junit.jupiter.execution.parallel.mode.classes.default=concurrent

src/main/resources/starter/logback/index.twig

@@ -9,6 +9,7 @@
     <root level="DEBUG">
         <appender-ref ref="STDOUT"/>
     </root>
-    <logger name="com.mitchellbosecke.pebble" level="INFO"/>
+    {% for logger in loggers %}
-    <logger name="org.eclipse.jetty" level="INFO"/>
+        <logger name="{{ logger }}" level="INFO"/>
+    {% endfor %}
 </configuration>

src/main/resources/starter/pom/@dependencies.twig

@@ -1,9 +1,14 @@
 <dependencies>
+    <dependency>
+        <groupId>org.jetbrains.kotlin</groupId>
+        <artifactId>kotlin-stdlib-jdk8</artifactId>
+        <version>${kotlin.version}</version>
+    </dependency>
 {% for dep in dependencies %}
     <dependency>
         <groupId>{{ dep.groupId }}</groupId>
         <artifactId>{{ dep.artifactId }}</artifactId>
-        <version>{{ dep.version }}</version>
+        <version>{{ "${" }}{{ dep.version.name }}{{ ".version}" }}</version>
         {% if dep.scope == "Test" %}
             <scope>test</scope>
         {% endif %}

src/main/resources/starter/pom/@repositories.twig

@@ -1,7 +1,10 @@
+{% if repositories is not empty %}
 <repositories>
+    {% for repo in repositories %}
         <repository>
-        <id>jcenter</id>
+            <id>{{ repo.name }}</id>
-        <name>jcenter</name>
+            <url>{{ repo.url }}</url>
-        <url>https://jcenter.bintray.com</url>
         </repository>
+    {% endfor %}
 </repositories>
+{% endif %}

src/main/resources/starter/pom/index.twig

@@ -12,6 +12,11 @@
         <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>
+        <!-- versions -->
+        {% for version in versions %}
+            <{{version.name}}.version>{{version.value}}</{{version.name}}.version>
+        {% endfor %}
+
     </properties>
 
     {% include "starter/pom/@dependencies" %}

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

@@ -20,5 +20,19 @@
     </executions>
     <configuration>
         <jvmTarget>${java.version}</jvmTarget>
+        {% if kotlinxSerialization %}
+            <compilerPlugins>
+                <plugin>kotlinx-serialization</plugin>
+            </compilerPlugins>
+        {% endif %}
     </configuration>
+    {% if kotlinxSerialization %}
+    <dependencies>
+        <dependency>
+            <groupId>org.jetbrains.kotlin</groupId>
+            <artifactId>kotlin-maven-serialization</artifactId>
+            <version>${kotlin.version}</version>
+        </dependency>
+    </dependencies>
+    {% endif %}
 </plugin>

src/main/resources/starter/pom/plugins/@shade.twig

@@ -9,6 +9,7 @@
                 <goal>shade</goal>
             </goals>
             <configuration>
+                <createDependencyReducedPom>false</createDependencyReducedPom>
                 <minimizeJar>true</minimizeJar>
                 <transformers>
                     <transformer

src/main/resources/views/#macros.twig

@@ -1,9 +1,14 @@
 {% macro dependency(dependency) %}
+    <details>
+        <summary>
             <label class="m-2">
                 <input name="{{ dependency.name }}"
                        type="checkbox"{% if dependency.default %} checked{% endif %}>
                 <span>{{ dependency.name }}</span>
             </label>
+        </summary>
+        <pre><code>{{ depAsXml(dependency) }}</code></pre>
+    </details>
 {% endmacro %}
 
 {% macro input(input) %}

src/main/resources/views/index.twig

@@ -21,6 +21,6 @@
                 </section>
             {% endfor %}
         </div>
-        <button type="submit" class="w-full btn btn-purple">Submit</button>
+        <button type="submit" class="my-4 w-full btn btn-purple">Submit</button>
     </form>
 {% endblock %}

src/test/kotlin/starter/templates/PomTemplateTest.kt

@@ -0,0 +1,121 @@
+package starter.templates
+
+import org.assertj.core.api.Assertions.assertThat
+import org.intellij.lang.annotations.Language
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.TestInstance
+import org.koin.dsl.koinApplication
+import org.w3c.dom.Node
+import org.w3c.dom.NodeList
+import starter.Project
+import starter.config.StarterConfig
+import starter.modules.mainModule
+import starter.modules.pebbleModule
+import starter.modules.templateModule
+import javax.xml.parsers.DocumentBuilderFactory
+import javax.xml.xpath.XPathConstants
+import javax.xml.xpath.XPathFactory
+
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+internal class PomTemplateTest {
+
+    private val koin = koinApplication {
+        modules(mainModule, pebbleModule, templateModule)
+    }.koin
+
+    private val pomTemplate = koin.get<PomTemplate>()
+    private val conf = koin.get<StarterConfig>()
+
+    private val project = Project(
+        name = "Test",
+        basePackage = "org.test",
+        inputs = conf.inputs,
+        dependencies = conf.dependencies,
+        repositories = conf.dependencies.mapNotNull { it.repository }.toSet()
+    )
+
+    private val docBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder()
+    private val xPath = XPathFactory.newInstance().newXPath()
+
+    // region xml utils
+    private fun String.extract(expression: String): String {
+        val doc = docBuilder.parse(this.byteInputStream())
+        xPath.compile(expression).evaluate(doc, XPathConstants.NODESET)
+        return xPath.compile(expression).evaluate(doc)
+    }
+
+    private fun <T> String.extractAll(expression: String, mapper: (Node) -> T): List<T> {
+        val doc = docBuilder.parse(this.byteInputStream())
+        val res = xPath.compile(expression).evaluate(doc, XPathConstants.NODESET) as NodeList
+        return res.asList().map(mapper)
+    }
+
+    private fun NodeList.asList(): List<Node> = (0 until length).map { item(it) }
+    // endregion
+
+    @Test
+    fun javaVersion() {
+        val xml = pomTemplate.render(project)
+        assertThat(xml.extract("/project/properties/java.version"))
+            .isEqualTo(project.inputs.find { it.name == "javaVersion" }?.value)
+
+        println(xml)
+    }
+
+    @Test
+    fun dependencies() {
+        val xml = pomTemplate.render(project)
+
+        val deps = xml.extractAll("/project/dependencies/dependency") {
+            val map = it.childNodes.asList()
+                .filter { it.nodeType == Node.ELEMENT_NODE }
+                .associate { it.nodeName to it.firstChild.nodeValue }
+
+            Triple(map["groupId"]!!, map["artifactId"]!!, map["version"]!!)
+
+        }.filterNot { it.second == "kotlin-stdlib-jdk8" }
+
+        println(deps.joinToString("\n"))
+
+        val expectedDependencies = project.dependencies
+            .map { Triple(it.groupId, it.artifactId, "\${" + it.version.name + ".version}") }
+
+        assertThat(expectedDependencies).containsExactlyInAnyOrderElementsOf(deps)
+    }
+
+    @Test
+    fun versions() {
+        val xml = pomTemplate.render(project)
+
+        val versions = xml.extractAll("/project/properties") {
+            it.childNodes.asList()
+                .filter { it.nodeType == Node.ELEMENT_NODE }
+                .filter { it.nodeName.endsWith(".version") }
+                .filterNot { it.nodeName in listOf("java.version", "kotlin.version") }
+                .associate { it.nodeName.substringBefore(".version") to it.firstChild.nodeValue }
+        }.first()
+
+        val expected = project.dependencies.associate { it.version.name to it.version.value }
+
+        assertThat(versions).containsExactlyInAnyOrderEntriesOf(expected)
+
+        println(versions)
+    }
+
+    @Test
+    fun kotlinxSerialization() {
+        val xml = pomTemplate.render(project)
+
+        @Language("XPath")
+        val kotlinMavenPlugin = "/project/build/plugins/plugin[artifactId='kotlin-maven-plugin']"
+
+        val kotlinxPlugin = "$kotlinMavenPlugin/configuration/compilerPlugins/plugin"
+        assertThat(xml.extract(kotlinxPlugin))
+            .isEqualTo("kotlinx-serialization")
+
+        val kotlinxPluginDep = "$kotlinMavenPlugin/dependencies/dependency/artifactId"
+        assertThat(xml.extract(kotlinxPluginDep))
+            .isEqualTo("kotlin-maven-serialization")
+
+    }
+}