How to compress JS and css in java at build time using maven-minify-plugin with YUI compressor

Question

I want to use maven-minify plugin with YUI compressor for compressing JS and css at build time. My JS and CSS are kept in different folders. For instance. 'X' JS files are present in one folder and remaining are present in different folder. Same is the case with CSS files.

Also I want to know, how does reference of JS and CSS gets changed in JSP,if in case the file name changes from jsFileName.js to something like jsFileName-min.js

Please let me know how to use this plugin as I am completely new to this.

Nishant · Accepted Answer · 2012-09-17 11:58:58Z

15

Use Samaxes plug-in, configure like this:

<plugin>
    <groupId>com.samaxes.maven</groupId>
    <artifactId>maven-minify-plugin</artifactId>
    <version>1.3.5</version>
    <executions>
        <execution>
            <id>min-js</id>
            <phase>process-resources</phase>
            <configuration>
                <cssSourceDir>relative/path/to/css/dir</cssSourceDir>
                <cssSourceFiles>
                    <cssSourceFile>subfolder1/1.css</cssSourceFile>
                    <cssSourceFile>subfolder1/3.css</cssSourceFile>
                    <cssSourceFile>subfolder2/2.css</cssSourceFile>
                </cssSourceFiles>
                <cssTargetDir>relative/path/to/final/location</cssTargetDir>
                <cssFinalFile>minified.css</cssFinalFile>

                <jsSourceDir>relative/path/to/js/dir</jsSourceDir>
                <jsSourceFiles>
                    <jsSourceFile>subfolder3/1.js</jsSourceFile>
                    <jsSourceFile>subfolder4/2.js</jsSourceFile>
                </jsSourceFiles>
                <jsFinalFile>minifiedname.js</jsFinalFile>
                <jsTargetDir>rel/path/to/final/location</jsTargetDir>
            </configuration>
            <goals>
                <goal>minify</goal>
            </goals>
        </execution>
        <!-- more execution statements -->
    </executions>                               
</plugin>

edited Sep 17, 2012 at 11:58

answered Sep 17, 2012 at 11:26

Nishant

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3 Comments

Bhuvan Over a year ago

I am trying to use your solution but I am getting the error "plugin execution not covered by lifecycle configuration" in my pom.xml. I am using Eclipse Indigo. Any thoughts?

Nishant Over a year ago

cnage phase to compile or package <phase>package</phase>

Nishant Over a year ago

@bhuvan If this answer solved your problem, please mark it as answered by clicking on the up-tick next to this answer. See here how. If you liked the answer, you may also up-vote by clicking on up arrow next to the answer.

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