we've decided to migrate to Eclipse Indigo and uses m2e 1.0.
But, we have problems trying to tackle the lifecycle mapping problem.
As
I understood, we have to define in pom.xml lifecycle mapping metadata
to instruct Eclipse which executions should be executed when sources are
changed.
In our WAR project, we want to write many small _javascript_ source
files and these files would be merged in an unique file (minified or
not). For this task, we've planned to use yuicompressor-maven-plugin.
I
didn't find too many docs instructing how to develop a connector for
this plugin. Just found an example inside m2e-core sources defining a
lyfecicle mapping metadata to instruct m2e to ignore the execution of
this plugin.
However, we would want to use and reference the merged file while deploying the artifact using Eclipse WTP.
The
solution (I found googling) looks like to be instruct the plugin to
generate the merged _javascript_ file inside m2e-wtp/web-resources/
directory.
So, we have to define two executions for this plugin. One to generate
the merged file inside target (to be packaged) by maven
(yuicompressor-default execution id) another to generate the merged file
inside m2e-wtp/web-resources/ directory(yuicompressor-
eclipse execution id).
The second step would be to create the lifecycle metadata to instruct
the execution of the plugin that generates the merged file inside
m2e-wtp/web-resources.
One problem in this approach is that for each
source file changed, both yuicompressor-maven-plugin are executed since
we didn't find a way to ignore just the yuicompressor-default execution.
Here I present my pom.xml relevant sections:
Metadata filecycle mapping:
<pluginManagement>
<plugins>
<!--This plugin's configuration is used to store Eclipse
m2e settings only. It has no influence on the Maven build itself.-->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>net.alchim31.maven</groupId>
<artifactId>yuicompressor-maven-plugin</artifactId>
<versionRange>[1.2,)</versionRange>
<id>yuicompressor-eclipse</id>
<goals>
<goal>compress</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute></execute>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
Yui Compreessor maven Plugin configuration
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>yuicompressor-maven-plugin</artifactId>
<version>1.2</version>
<executions>
<execution>
<id>yuicompressor-default</id>
<phase>process-resources</phase>
<goals>
<goal>compress</goal>
</goals>
<inherited>false</inherited>
<configuration>
<aggregations>
<aggregation>
<!-- remove files after aggregation (default: false) <removeIncluded>true</removeIncluded> -->
<!-- insert new line after each concatenation (default: false) -->
<insertNewLine>true</insertNewLine>
<output>${project.build.directory}/${project.build.finalName}/resources/js/0_1_2/script.js</output>
<!-- base directory for non absolute includes, default to parent dir of output -->
<inputDir>${basedir}/src/main/webapp/resources/js/0_1_2</inputDir>
<!-- files to include, path relative to output's directory or absolute path -->
<includes>
<include>file1.js</include>
<include>file2.js</include>
<include>file3.js</include>
<include>file4.js</include>
<include>file5.js</include>
<include>file6.js</include>
<include>file7.js</include>
</includes>
<!-- files to exclude, path relative to output's
directory <excludes> <exclude>**/*.pack.js</exclude> <exclude>**/compressed.css</exclude>
</excludes> -->
</aggregation>
<aggregation>
<!-- remove files after aggregation (default: false) <removeIncluded>true</removeIncluded> -->
<!-- insert new line after each concatenation (default: false) -->
<insertNewLine>true</insertNewLine>
<output>${project.build.directory}/${project.build.finalName}/resources/js/0_1_2/script-min.js</output>
<!-- base directory for non absolute includes, default to parent dir of output -->
<inputDir>${project.build.directory}/${project.build.finalName}/resources/js/0_1_2</inputDir>
<!-- files to include, path relative to output's directory or absolute path -->
<includes>
<include>file1-min.js</include>
<include>file2-min.js</include>
<include>file3-min.js</include>
<include>file4-min.js</include>
<include>file5-min.js</include>
<include>file6-min.js</include>
<include>file7-min.js</include>
</includes>
<!-- files to exclude, path relative to output's
directory <excludes> <exclude>**/*.pack.js</exclude> <exclude>**/compressed.css</exclude>
</excludes> -->
</aggregation>
</aggregations>
</configuration>
</execution>
<execution>
<id>yuicompressor-eclipse</id>
<phase>process-resources</phase>
<goals>
<goal>compress</goal>
</goals>
<inherited>false</inherited>
<configuration>
<aggregations>
<aggregation>
<!-- remove files after aggregation (default: false) <removeIncluded>true</removeIncluded> -->
<!-- insert new line after each concatenation (default: false) -->
<insertNewLine>true</insertNewLine>
<output>${project.build.directory}/m2e-wtp/web-resources/resources/js/0_1_2/script.js</output>
<!-- base directory for non absolute includes, default to parent dir of output -->
<inputDir>${basedir}/src/main/webapp/resources/js/0_1_2</inputDir>
<!-- files to include, path relative to output's directory or absolute path -->
<includes>
<include>file1-min.js</include>
<include>file2-min.js</include>
<include>file3-min.js</include>
<include>file4-min.js</include>
<include>file5-min.js</include>
<include>file6-min.js</include>
<include>file7-min.js</include>
</includes>
<!-- files to exclude, path relative to output's
directory <excludes> <exclude>**/*.pack.js</exclude> <exclude>**/compressed.css</exclude>
</excludes> -->
</aggregation>
<aggregation>
<!-- remove files after aggregation (default: false) <removeIncluded>true</removeIncluded> -->
<!-- insert new line after each concatenation (default: false) -->
<insertNewLine>true</insertNewLine>
<output>${project.build.directory}/m2e-wtp/web-resources/resources/js/0_1_2/script-min.js</output>
<!-- base directory for non absolute includes, default to parent dir of output -->
<inputDir>${project.build.directory}/${project.build.finalName}/resources/js/0_1_2</inputDir>
<!-- files to include, path relative to output's directory or absolute path -->
<includes>
<include>file1-min.js</include>
<include>file2-min.js</include>
<include>file3-min.js</include>
<include>file4-min.js</include>
<include>file5-min.js</include>
<include>file6-min.js</include>
<include>file7-min.js</include>
</includes>
<!-- files to exclude, path relative to output's
directory <excludes> <exclude>**/*.pack.js</exclude> <exclude>**/compressed.css</exclude>
</excludes> -->
</aggregation>
</aggregations>
</configuration>
</execution>
</executions>
<configuration>
<!-- <disableOptimizations>false</disableOptimizations> -->
<!-- <encoding></encoding> -->
<!-- <failOnWarning>true</failOnWarning> -->
<!-- Zip the files. Defaults to false -->
<!-- <gzip>true</gzip> -->
<!-- force the compression of every files, else if
compressed file already exists and is younger than source file, nothing
is done. -->
<!-- <force>true</force> -->
<!-- Unable _javascript_ warnings -->
<jswarn>false</jswarn>
</configuration>
</plugin>
</plugins>
Is there another better way to integrate merging and minifying _javascript_ or css files inside m2e lifecycle deploying phase?
Best regards,
Orair.