using gem-maven-plugin to compass compile or execute sass. sass with gem dependency within plugin and compass with global compile dependency (which is also added to the java-classpath and not so nice)

pom-compass.xml

<?xml version="1.0"?>
<project
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
    xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.example</groupId>
  <artifactId>example</artifactId>
  <version>0.0.36</version>

  <repositories>
    <repository>
      <id>rubygems-releases</id>
      <url>http://rubygems-proxy.torquebox.org/releases</url>
    </repository>
  </repositories>

  <dependencies>
    <dependency>
      <groupId>rubygems</groupId>
      <artifactId>compass</artifactId>
      <version>0.11.7</version>
      <type>gem</type>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>de.saumya.mojo</groupId>
        <artifactId>gem-maven-plugin</artifactId>
        <version>0.29.4</version>
	<extensions>true</extensions>
        <executions>
	  <execution>
	    <goals>
	      <goal>exec</goal>
	    </goals>
	    <phase>compile</phase>
	  </execution>
	</executions>
	<configuration>
	  <!--jrubyVersion>1.7.2</jrubyVersion-->
	  <execArgs>${project.build.directory}/rubygems/bin/compass compile ${basedir}/src/main/sass</execArgs>
	</configuration>
      </plugin>
    </plugins>
  </build>
</project>

pom-sass.xml

<?xml version="1.0"?>
<project
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
    xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.example</groupId>
  <artifactId>example</artifactId>
  <version>0.0.36</version>

  <pluginRepositories>
    <pluginRepository>
      <id>rubygems-releases</id>
      <url>http://rubygems-proxy.torquebox.org/releases</url>
    </pluginRepository>
  </pluginRepositories>

  <build>
    <plugins>
      <plugin>
        <groupId>de.saumya.mojo</groupId>
        <artifactId>gem-maven-plugin</artifactId>
        <version>0.29.4</version>
        <executions>
	  <execution>
	    <goals>
	      <goal>exec</goal>
	    </goals>
            <phase>process-resources</phase>
	    <configuration>
	      <jrubyVersion>1.7.2</jrubyVersion>
	      <execArgs>${project.build.directory}/rubygems/bin/sass --update ${basedir}/src/main/sass</execArgs>
	    </configuration>
	  </execution>
	</executions>
        <dependencies>
          <dependency>
            <groupId>rubygems</groupId>
            <artifactId>sass</artifactId>
            <version>3.2.5</version>
            <type>gem</type>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>

I am using this script for compiling scss file to css after modifying as
"${project.build.directory}/rubygems/bin/sass test.scss:test.css".

I don't have much knowledge of scss and css and while compiling encountered couple of errors

1)Syntax error: Function sprite_map doesn't support keyword arguments
on line 24 of main/sass/_ic.scss
from line 37 of main/sass/global.scss
where sprite_map was used as "sprite-map("icons/*.png", $spacing: 10px, $repeat: no-repeat)", if I remove spacing and repeat keyword its works fine.

2. Syntax error: File to import not found or unreadable: models/_.png.
   Load path: D:/trunk/src
   on line 6 of main/sass/my-sprites.scss
   from line 43 of main/sass/global.scss
   path:
   src
   --main
   --sass
   (scss files)
   --models
   (png images)
   I have also tried modifying the import path in "my-sprites.scss" to "main/sass/models/.png"
   but same error again occured with this path as well.

Do we have any configuration file which state which path should be used to pick up the images?. if yes then how we can fit that in this maven pom.xml

Any help will be appreciated.

Hi! I'm having a problem with this plugin. It seems that a class is missing, maybe I need to import another dependency. Here's the log i get:
Number of imports: 10
import: org.codehaus.classworlds.Entry@a6c57a42
import: org.codehaus.classworlds.Entry@12f43f3b
import: org.codehaus.classworlds.Entry@20025374
import: org.codehaus.classworlds.Entry@f8e44ca4
import: org.codehaus.classworlds.Entry@92758522
import: org.codehaus.classworlds.Entry@ebf2705b
import: org.codehaus.classworlds.Entry@bb25e54
import: org.codehaus.classworlds.Entry@bece5185
import: org.codehaus.classworlds.Entry@3fee8e37
import: org.codehaus.classworlds.Entry@3fee19d8

this realm = plexus.core
urls[0] = file:/usr/share/maven2/lib/maven-debian-uber.jar
Number of imports: 10
import: org.codehaus.classworlds.Entry@a6c57a42
import: org.codehaus.classworlds.Entry@12f43f3b
import: org.codehaus.classworlds.Entry@20025374
import: org.codehaus.classworlds.Entry@f8e44ca4
import: org.codehaus.classworlds.Entry@92758522
import: org.codehaus.classworlds.Entry@ebf2705b
import: org.codehaus.classworlds.Entry@bb25e54
import: org.codehaus.classworlds.Entry@bece5185
import: org.codehaus.classworlds.Entry@3fee8e37

import: org.codehaus.classworlds.Entry@3fee19d8

[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Internal error in the plugin manager executing goal 'de.saumya.mojo:gem-maven-plugin:0.28.6:exec': Unable to load the mojo 'de.saumya.mojo:gem-maven-plugin:0.28.6:exec' in the plugin 'de.saumya.mojo:gem-maven-plugin'. A required class is missing: org/apache/maven/repository/legacy/metadata/MetadataResolutionRequest
org.apache.maven.repository.legacy.metadata.MetadataResolutionRequest

Any idea what the problem may be? I saw somewhere that it runs on maven 3, maybe that's the problem?

$ mvn -version
Apache Maven 2.2.1 (rdebian-8)
Java version: 1.6.0_30
Java home: /usr/lib/jvm/java-6-sun-1.6.0.30/jre
Default locale: es_AR, platform encoding: UTF-8
OS name: "linux" version: "3.2.0-37-generic-pae" arch: "i386" Family: "unix"

FYI I Installed maven3 following http://blog.btmatthews.com/2011/08/04/installing-maven-3-on-ubuntu-11-04-lts-server/ and build it without any problem.
Great plugin!

hoops - never saw any notification on those comments.

@gastonfournler yes - that plugin needs maven3 ;)

@Mhsh still problems ? I can not help you with sass but on how to add a config file. windows is also a bit of problem for me

Hi There, I am trying to specify my includes directory like I do using compass but maven seems to be failing with the following error "Error: invalid option: -I" are includes not supported with this plugin?
Here is what I am doing, maybe I am not doing it right
<execArgs> ${project.build.directory}/rubygems/bin/compass compile --sass-dir ${basedir}/src/SCSS/stylesheets --css-dir ${basedir}/target/CSS -I ${basedir}/src/SCSS/includes </execArgs>