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copied!<p>For a quick demo you can clone or download what I have done <a href="http://github.com/leolannenmaki/sbt-appengine-plugin-skeleton" rel="noreferrer">here</a>.</p> <h1>A minimalistic <a href="http://github.com/Yasushi/sbt-appengine-plugin" rel="noreferrer">sbt-appengine-plugin</a> example from scratch</h1> <p><strong>Clone the sbt-appengine-plugin from GitHub</strong></p> <pre><code> cd mystuff git clone git://github.com/Yasushi/sbt-appengine-plugin.git cd sbt-appengine-plugin sbt </code></pre> <p><strong>Publish the plugin locally so that you can use it in your own projects</strong></p> <pre><code>publish-local exit </code></pre> <p><strong>Create a directory for a new project</strong></p> <pre><code>cd .. mkdir sbt-appengine-plugin-test cd sbt-appengine-plugin-test sbt </code></pre> <p><strong>Configure the new project</strong></p> <pre><code>Project does not exist, create new project? (y/N/s) y Name: sbt-appengine-plugin-test Organization: com.example Version [1.0]: Scala version [2.7.7]: 2.8.0.Beta1 sbt version [0.7.3]: exit </code></pre> <p><strong>Tell sbt about the plugin you want to use</strong></p> <pre><code>mkdir project/build mkdir project/plugins nano project/build/project.scala </code></pre> <p><strong>project.scala</strong></p> <pre><code>import sbt._ class AppengineTestProject(info: ProjectInfo) extends AppengineProject(info) nano project/plugins/plugins.scala </code></pre> <p><strong>plugins.scala</strong></p> <pre><code>import sbt._ class Plugins(info: ProjectInfo) extends PluginDefinition(info) { val a = "net.stbbs.yasushi" % "sbt-appengine-plugin" % "1.1-SNAPSHOT" } </code></pre> <p><strong>Add a very simple servlet</strong></p> <pre><code>mkdir -p src/main/scala/com/example nano -w src/main/scala/com/example/HelloWorld.scala </code></pre> <p><strong>HelloWorld.scala</strong> </p> <pre><code>package com.example; import javax.servlet.http.{HttpServlet, HttpServletRequest, HttpServletResponse} class HelloWorld extends HttpServlet { override def doGet(request: HttpServletRequest, response: HttpServletResponse$ response.setContentType("text/plain") response.getWriter.println("Hello, world") } } </code></pre> <p><strong>Add some more configuration files</strong></p> <pre><code>mkdir -p src/main/webapp/WEB-INF nano -w src/main/WEB-INF/web.xml </code></pre> <p><strong>web.xml</strong> </p> <pre><code><?xml version="1.0" encoding="ISO-8859-1"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xm$ version="2.5"> <display-name>sbt-appengine-plugin usage example</display-name> <servlet> <servlet-name>helloworld</servlet-name> <servlet-class>com.example.HelloWorld</servlet-class> </servlet> <servlet-mapping> <servlet-name>helloworld</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app> nano -w src/main/WEB-INF/appengine-web.xml </code></pre> <p><strong>appengine-web.xml</strong> </p> <pre><code><appengine-web-app xmlns="http://appengine.google.com/ns/1.0"> <!-- Replace this with your application id from http://appengine.google.com -$ <application>hello-world</application> <version>1</version> </appengine-web-app> </code></pre> <p><strong>And finally run sbt and start the project</strong></p> <pre><code>sbt update dev-appserver-start </code></pre> <p><strong>Point your browser to <a href="http://localhost:8080/" rel="noreferrer">http://localhost:8080/</a> and you should see Hello, world</strong></p> <pre><code>dev-appserver-stop </code></pre> <p>To watch for changes in source files I have experimented a little with ~prepare-webapp after starting the server, but I haven't gotten it working properly.</p>

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