Develop (#10)

* develop: added gitignore

* develop: added *.iml to gitignore

* develop: added pom

* develop: initial version

* develop: added readme

* develop: added tests

* develop: fixed typo

* featture/version_change: version number should match scalafmt version. (#6)

* develop: fixed versioning & NPE.

README.md

@@ -2,7 +2,8 @@
 
 A wrapper that allows the use of the [Scalafmt](https://github.com/olafurpg/scalafmt/) formatter in Maven;
 
-Note: The version of the plugin should match the version of scalafmt you wish to use.  Current supported versions are 0.6.0 - 0.6.8.  All versions are currently compiled against Scala 2.11.8.  If you require anything else, please open an issue.
+Note: There are muliple versions of the plugin released and the version of the plugin should match the version of scalafmt you wish to use.  Current supported versions are 0.6.0 - 0.6.8.  For exmaple, to use the latest version of the plugin with the latest version of scala-fmt you should set the version to 0.3_0.6.8 in your pom.
+All versions are currently compiled against Scala 2.11.8.  If you require anything else, please open an issue.
 
 ## Usage
 
@@ -14,7 +15,7 @@ passed through to the CLI as is.
 <plugin>
   <groupId>org.antipathy</groupId>
   <artifactId>mvn-scalafmt</artifactId>
-  <version>${scalafmt.version}</version>
+  <version>0.3_${scalafmt.version}</version>
   <configuration>
     <parameters>--diff</parameters> <!-- Additional command line arguments-->
     <configLocation>${project.basedir}/path/to/scalafmt.conf</configLocation>

pom.xml

@@ -4,7 +4,7 @@
     <groupId>org.antipathy</groupId>
     <artifactId>mvn-scalafmt</artifactId>
     <packaging>maven-plugin</packaging>
-    <version>${version.scalafmt}</version>
+    <version>0.3_${version.scalafmt}</version>
     <name>Scalafmt Maven Plugin</name>
     <description>Maven plugin for ScalaFmt</description>
     <url>https://github.com/SimonJPegg/mvn_scalafmt</url>

src/main/java/org/antipathy/scalafmtmvn/FormatMojo.java

@@ -21,7 +21,10 @@ public void execute() throws MojoExecutionException {
         if(StringUtils.isEmpty(configLocation)) {
             throw new MojoExecutionException("No configuration file specified");
         } else {
-            getLog().info("Formatting with config: " + configLocation + " and options: " + parameters);
+            getLog().info("Formatting with config: " + configLocation);
+            if (parameters != null) {
+                getLog().info(" and options: " + parameters);
+            }
             try {
                 Formatter.format(configLocation, parameters);
             } catch (Exception e) {

src/main/scala/org/antipathy/scalafmtmvn/Formatter.scala

@@ -16,7 +16,10 @@ object Formatter {
    * @param configLocation the location of a scalafmt.conf file
    */
   def format(configLocation: String, parameters: String): Unit = {
-    val params = parameters.split(" ") ++ Seq("--config", configLocation)
+    val params : Seq[String] = parameters match {
+      case null => Seq("--config", configLocation)
+      case string: String => parameters.split(" ") ++ Seq("--config", configLocation)
+    }
     Cli.getConfig(params.toArray, CliOptions.default) match {
       case Some(x) => Cli.run(x)
       case None =>