[MSCRIPTING-8] Support scriptResource
diff --git a/pom.xml b/pom.xml
index 13fb174..1b90110 100644
--- a/pom.xml
+++ b/pom.xml
@@ -121,25 +121,47 @@
     <profile>

       <id>run-its</id>

       <build>

-        <pluginManagement>

-          <plugins>

-            <plugin>

-              <groupId>org.apache.maven.plugins</groupId>

-              <artifactId>maven-invoker-plugin</artifactId>

-              <configuration>

-                <projectsDirectory>src/it</projectsDirectory>

-                <cloneProjectsTo>${project.build.directory}/it</cloneProjectsTo>

-                <preBuildHookScript>setup</preBuildHookScript>

-                <postBuildHookScript>verify</postBuildHookScript>

-                <localRepositoryPath>${project.build.directory}/local-repo</localRepositoryPath>

-                <settingsFile>src/it/settings.xml</settingsFile>

+        <plugins>

+          <plugin>

+            <groupId>org.apache.maven.plugins</groupId>

+            <artifactId>maven-invoker-plugin</artifactId>

+            <configuration>

+              <projectsDirectory>src/it/projects</projectsDirectory>

+              <cloneProjectsTo>${project.build.directory}/it</cloneProjectsTo>

+              <preBuildHookScript>setup</preBuildHookScript>

+              <postBuildHookScript>verify</postBuildHookScript>

+              <localRepositoryPath>${project.build.directory}/local-repo</localRepositoryPath>

+              <settingsFile>src/it/mrm/settings.xml</settingsFile>

+              <filterProperties>

+                <mrm.repository.url>${mrm.repository.url}</mrm.repository.url>

+              </filterProperties>

+              <goals>

+                <goal>scripting:eval</goal>

+              </goals>

+            </configuration>

+          </plugin>

+          <plugin>

+            <groupId>org.codehaus.mojo</groupId>

+            <artifactId>mrm-maven-plugin</artifactId>

+            <version>1.3.0</version>

+            <executions>

+              <execution>

                 <goals>

-                  <goal>scripting:eval</goal>

+                  <goal>start</goal>

+                  <goal>stop</goal>

                 </goals>

-              </configuration>

-            </plugin>

-          </plugins>

-        </pluginManagement>

+              </execution>

+            </executions>

+            <configuration>

+              <repositories>

+                <mockRepo>

+                  <source>src/it/mrm/repository</source>

+                </mockRepo>

+                <proxyRepo/>

+              </repositories>

+            </configuration>

+          </plugin>

+        </plugins>

       </build>

     </profile>

   </profiles>

diff --git a/src/it/mrm/repository/_mscripting-8.jar b/src/it/mrm/repository/_mscripting-8.jar
new file mode 100644
index 0000000..4bc8711
--- /dev/null
+++ b/src/it/mrm/repository/_mscripting-8.jar
Binary files differ
diff --git a/src/it/mrm/repository/mscripting-8.jar/script.groovy b/src/it/mrm/repository/mscripting-8.jar/script.groovy
new file mode 100644
index 0000000..a77c5f8
--- /dev/null
+++ b/src/it/mrm/repository/mscripting-8.jar/script.groovy
@@ -0,0 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+ 
+assert true
\ No newline at end of file
diff --git a/src/it/mrm/repository/mscripting-8.pom b/src/it/mrm/repository/mscripting-8.pom
new file mode 100644
index 0000000..dcf6b38
--- /dev/null
+++ b/src/it/mrm/repository/mscripting-8.pom
@@ -0,0 +1,29 @@
+<?xml version='1.0' encoding='UTF-8'?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.apache.maven.plugins.scripting.its</groupId>
+  <artifactId>mscripting-8</artifactId>
+  <version>1.0.0</version>
+
+</project>
diff --git a/src/it/settings.xml b/src/it/mrm/settings.xml
similarity index 66%
rename from src/it/settings.xml
rename to src/it/mrm/settings.xml
index 35dbcec..7292e58 100644
--- a/src/it/settings.xml
+++ b/src/it/mrm/settings.xml
@@ -19,31 +19,47 @@
 under the License.

 -->

 

-<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">

+<settings>

+  <mirrors>

+    <mirror>

+      <id>mrm-maven-plugin</id>

+      <name>Mock Repository Manager</name>

+      <url>@mrm.repository.url@</url>

+      <mirrorOf>*</mirrorOf>

+    </mirror>

+  </mirrors>

   <profiles>

     <profile>

       <id>it-repo</id>

       <repositories>

         <repository>

-          <id>local.central</id>

-          <url>@localRepositoryUrl@</url>

+          <id>snapshots</id>

+          <url>@mrm.repository.url@</url>

           <releases>

             <enabled>true</enabled>

+            <checksumPolicy>ignore</checksumPolicy>

+            <updatePolicy>never</updatePolicy>

           </releases>

           <snapshots>

             <enabled>true</enabled>

+            <checksumPolicy>ignore</checksumPolicy>

+            <updatePolicy>always</updatePolicy>

           </snapshots>

         </repository>

       </repositories>

       <pluginRepositories>

         <pluginRepository>

-          <id>local.central</id>

-          <url>@localRepositoryUrl@</url>

+          <id>snapshots</id>

+          <url>@mrm.repository.url@</url>

           <releases>

             <enabled>true</enabled>

+            <checksumPolicy>ignore</checksumPolicy>

+            <updatePolicy>never</updatePolicy>

           </releases>

           <snapshots>

             <enabled>true</enabled>

+            <checksumPolicy>ignore</checksumPolicy>

+            <updatePolicy>always</updatePolicy>

           </snapshots>

         </pluginRepository>

       </pluginRepositories>

@@ -52,4 +68,5 @@
   <activeProfiles>

     <activeProfile>it-repo</activeProfile>

   </activeProfiles>

+  

 </settings>

diff --git a/src/it/groovy-script-file-name/pom.xml b/src/it/projects/groovy-script-file-name/pom.xml
similarity index 100%
rename from src/it/groovy-script-file-name/pom.xml
rename to src/it/projects/groovy-script-file-name/pom.xml
diff --git a/src/it/groovy-script-file-name/test.groov b/src/it/projects/groovy-script-file-name/test.groov
similarity index 100%
rename from src/it/groovy-script-file-name/test.groov
rename to src/it/projects/groovy-script-file-name/test.groov
diff --git a/src/it/groovy-script-file/pom.xml b/src/it/projects/groovy-script-file/pom.xml
similarity index 100%
rename from src/it/groovy-script-file/pom.xml
rename to src/it/projects/groovy-script-file/pom.xml
diff --git a/src/it/groovy-script-file/test.groovy b/src/it/projects/groovy-script-file/test.groovy
similarity index 100%
rename from src/it/groovy-script-file/test.groovy
rename to src/it/projects/groovy-script-file/test.groovy
diff --git a/src/it/projects/groovy-script-resource/pom.xml b/src/it/projects/groovy-script-resource/pom.xml
new file mode 100644
index 0000000..7c4942b
--- /dev/null
+++ b/src/it/projects/groovy-script-resource/pom.xml
@@ -0,0 +1,56 @@
+<?xml version='1.0' encoding='UTF-8'?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.apache.maven.plugins.scripting.its</groupId>
+  <artifactId>groovy-script-resource</artifactId>
+  <version>1.0.0-SNAPSHOT</version>
+  <packaging>pom</packaging>
+  
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-scripting-plugin</artifactId>
+        <version>@project.version@</version>
+        <configuration>
+          <scriptResource>script.groovy</scriptResource>
+        </configuration>
+        <dependencies>
+          <!-- Shared Resource -->
+          <dependency>
+            <groupId>org.apache.maven.plugins.scripting.its</groupId>
+            <artifactId>mscripting-8</artifactId>
+            <version>1.0.0</version>
+          </dependency>
+          <!-- ScriptEngines -->
+          <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy-jsr223</artifactId>
+            <version>2.4.7</version>
+          </dependency>
+        </dependencies>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/src/it/groovy-script/pom.xml b/src/it/projects/groovy-script/pom.xml
similarity index 100%
rename from src/it/groovy-script/pom.xml
rename to src/it/projects/groovy-script/pom.xml
diff --git a/src/main/java/org/apache/maven/plugins/scripting/EvalMojo.java b/src/main/java/org/apache/maven/plugins/scripting/EvalMojo.java
index 4a6dbbc..3976f13 100644
--- a/src/main/java/org/apache/maven/plugins/scripting/EvalMojo.java
+++ b/src/main/java/org/apache/maven/plugins/scripting/EvalMojo.java
@@ -59,6 +59,8 @@
      */

     @Parameter

     private File scriptFile;

+    

+    @Parameter String scriptResource;

 

     // script variables

     @Parameter( defaultValue = "${project}", readonly = true )

@@ -100,17 +102,22 @@
 

       if ( scriptFile != null )

       {

-         execute = new FileScriptEvaluator( engineName, scriptFile );

+          execute = new FileScriptEvaluator( engineName, scriptFile );

+

+      }

+      else if ( scriptResource != null )

+      {

+          execute = new ResourceScriptEvaluator( engineName, scriptResource );

 

       }

       else if ( script != null )

       {

-         execute = new StringScriptEvaluator( engineName, script );

+          execute = new StringScriptEvaluator( engineName, script );

 

       }

       else

       {

-         throw new IllegalArgumentException( "Missing script or scriptFile provided" );

+          throw new IllegalArgumentException( "Missing script or scriptFile provided" );

       }

       return execute;

     }

diff --git a/src/main/java/org/apache/maven/plugins/scripting/ResourceScriptEvaluator.java b/src/main/java/org/apache/maven/plugins/scripting/ResourceScriptEvaluator.java
new file mode 100644
index 0000000..5321226
--- /dev/null
+++ b/src/main/java/org/apache/maven/plugins/scripting/ResourceScriptEvaluator.java
@@ -0,0 +1,128 @@
+package org.apache.maven.plugins.scripting;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.io.UncheckedIOException;
+
+import javax.script.ScriptContext;
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
+
+/**
+ * Evaluates a script held in a resource. Use the engine name to override the engine if the resource name does not
+ * refer/decode to a valid engine name or not define any at all.
+ * 
+ * @author Robert Scholte
+ */
+public class ResourceScriptEvaluator extends AbstractScriptEvaluator
+{
+    
+  /**
+   * Not null, existing readable file with the script
+   */
+  private final String resourceName;
+
+  /**
+   * Possibly null engine name
+   */
+  private final String engineName;
+
+  /**
+   * @param engineName optional engine name, used to override the engine selection from the file extension
+   * @param resourceName not null
+   */
+  public ResourceScriptEvaluator( String engineName, String resourceName )
+  {
+    this.resourceName = resourceName;
+
+    this.engineName = engineName;
+  }
+
+  /**
+   * @param engine the script engine.
+   * @param context the script context.
+   * @return the result of the scriptFile.
+   * @throws ScriptException if an error occurs in script.
+   * @see org.apache.maven.plugins.scripting.AbstractScriptEvaluator#eval(javax.script.ScriptEngine, javax.script.ScriptContext)
+   */
+  protected Object eval( ScriptEngine engine, ScriptContext context ) throws ScriptException
+  {
+      
+    try ( InputStream is = this.getClass().getClassLoader().getResourceAsStream( resourceName );
+          Reader reader = new InputStreamReader( is ) )
+    {
+        return engine.eval( reader, context );
+    }
+    catch ( IOException ex )
+    {
+      throw new UncheckedIOException( resourceName + " caused:", ex );
+    }
+  }
+
+  /**
+   * Gets the script engine by engineName, otherwise by extension of the sciptFile 
+   * 
+   * @param manager the script engine manager
+   * @throws UnsupportedScriptEngineException if specified engine is not available 
+   * @see org.apache.maven.plugins.scripting.AbstractScriptEvaluator#getEngine(javax.script.ScriptEngineManager)
+   */
+  protected ScriptEngine getEngine( ScriptEngineManager manager ) throws UnsupportedScriptEngineException
+  {
+    ScriptEngine result;
+
+    if ( engineName != null && !engineName.isEmpty() )
+    {
+      result = manager.getEngineByName( engineName );
+
+      if ( result == null )
+      {
+        throw new UnsupportedScriptEngineException( "No engine found by name \"" + engineName + "\n" );
+      }
+    }
+    else
+    {
+      String name = resourceName;
+      int fileSepIndex = name.lastIndexOf( '/' ); 
+      if ( fileSepIndex >= 0 )
+      {
+          name = name.substring( fileSepIndex + 1 );
+      }
+      
+      String extension = name;
+      int position = name.indexOf( "." );
+      if ( position >= 0 )
+      {
+        extension = name.substring( position + 1 );
+      }
+      result = manager.getEngineByExtension( extension );
+
+      if ( result == null )
+      {
+        throw new UnsupportedScriptEngineException( "No engine found by extension \"" + extension + "\n" );
+      }
+    }
+    return result;
+  }
+}
diff --git a/src/site/markdown/usage.md.vm b/src/site/markdown/usage.md.vm
index 809bc10..60cbdb1 100644
--- a/src/site/markdown/usage.md.vm
+++ b/src/site/markdown/usage.md.vm
@@ -69,4 +69,31 @@
             <version>2.4.7</version>
           </dependency>
         </dependencies>
-      </plugin>
\ No newline at end of file
+      </plugin>
+      
+<h3>Script from File</h3>
+
+Use the scriptResource-tag to refer to your script and include its artifact as a dependency to the plugin. The engine is based on the resource-extension, but can be specified using the engineName-tag.
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-scripting-plugin</artifactId>
+        <version>${project.version}</version>
+        <configuration>
+          <scriptResource>/com/foo/bar/script.groovy</scriptFile>
+        </configuration>
+        <dependencies>
+          <!-- Shared Resource -->
+          <dependency>
+            <groupId/>
+            <artifactId/>
+            <version/>
+          </dependency>
+          <!-- ScriptEngines -->
+          <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy-jsr223</artifactId>
+            <version>2.4.7</version>
+          </dependency>
+        </dependencies>
+      </plugin>      
\ No newline at end of file