OH!  I didn't know about the addClasspath, addExtensions, and
classpathPrefix settings for the manfest configuration in the
maven-jar-plugin!  And to think it was so easy.  Now I feel stupid.

Thanks very much, Lee and Tim, and merci boucoup Jean-Laurent!!!!
--Erik

-----Original Message-----
From: jean-laurent de morlhon [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, May 31, 2006 5:09 PM
To: Maven Users List
Subject: Re: Stand-alone app


Erik,

If I understand what you want to do clearly, you can do everything
without writing a plugin. Just use the maven-jar-plugin and
maven-assembly-plugin. The following is extracted from a standalone
application I built with m2 a few month ago (assembly plugin as slightly
changed since then and spurts some deprecation but it works fine)

First make a executable jar and putting all dependencies into the
manifest is done this way :
      <plugin>
            <artifactId>maven-jar-plugin</artifactId>
            <configuration>
              <archive>
                <manifest>
        
<mainClass>com.foo.bar.ClassHoldingAMainMethod</mainClass>
                  <addClasspath>true</addClasspath>
                  <addExtensions>true</addExtensions>
                  <classpathPrefix>./lib/</classpathPrefix>
                </manifest>
               </archive>
            </configuration>
          </plugin>

Note that classpathPrefix is ./lib, of course you can use whatever you
want.


call the assembly plugin (plugin is not bound to any phase you can do it
if you want)
          <plugin>
             <artifactId>maven-assembly-plugin</artifactId>
             <configuration>
               <descriptor>assembly.xml</descriptor>
             </configuration>
          </plugin>

put in the assembly.xml the following :
<assembly>
  <id>distribution</id>
  <formats>
    <format>zip</format>
  </formats>
  <fileSets>
    <fileSet>
      <includes>
        <include>readme.txt</include>
      </includes>
    </fileSet>
    <fileSet>
      <directory>target</directory>
      <outputDirectory></outputDirectory>
      <includes>
        <include>*.jar</include>
      </includes>
    </fileSet>
  </fileSets>
  <dependencySets>
    <dependencySet>
      <outputDirectory>/lib</outputDirectory>
      <unpack>false</unpack>
      <scope>runtime</scope>
    </dependencySet>
  </dependencySets>
</assembly>

then call mvn assembly:directory.

you'll find in the target directory the resulting jar and in the lib
directory all the dependencies.

No plugin code, all is proper declaration.

hope it helps.


On 5/31/06, Lee Meador <[EMAIL PROTECTED]> wrote:
> What I do is build the executable jar. It takes two options to the jar

> plugin to put the dependent jar references in the manifest and to put 
> ./lib on the front of each reference.
>
> Then I have an assembly that puts that jar and its dependency jars all

> together in a zip or tar.gz that will extract into place to run. There

> are some properties files too. The assembly xml file is 40 lines. Most

> of them just define what goes inside. The rest has mostly to do with 
> filtering the resouces for different deployment environments.
>
> The pom has a few lines to tell it to do the assembly as part of a 
> full build.
>
> If I didn't do the properties files the way I do it would all run just

> fine with 'java -jar ...". As is, I run from the command line without 
> change after extracting from the zip or tar.gz.
>
> I'm probably missing something but there isn't that much to configure 
> and any plugin would need the information about what to put in the 
> jar, what to filter and so forth.
>
> On 5/31/06, Midtskogen, Erik <[EMAIL PROTECTED]> wrote:
> >
> > OK, so it seems that it's not possible to manage the build of a 
> > stand-alone, desktop application entirely in Maven without resorting

> > to one or more hacks or manual processes.  I find it rather odd that

> > the most basic of all use-cases usually fulfilled by software build 
> > systems is not yet supported by Maven.  But I'm willing to try my 
> > hand at writing a plugin or goal to fulfill this need and give 
> > something back to the Maven community.
> >
> > Just to recap my earlier inquiry, what I'm looking for is a goal 
> > whose resulting artifact is an executable jar file along with all 
> > the dependencies it needs in order to run.  The goal would 
> > automatically make the appropriate entries into the artifact jar's 
> > manifest.mf for the main class and the jar file dependencies.  Then,

> > it would copy the dependency jar files themselves from the 
> > repository to the locations specified in the manifest.mf.
> >
> > Would anybody else here have a need for such a goal, or am I the 
> > only one using Maven to build stand-alone Java apps?  If other 
> > people would find such a goal useful, should I try to write it as a 
> > goal of the assembly plugin, with the idea that I could submit it to

> > a committer and have it become a goal called, for example, 
> > assembly:stand-alone-app?
> >
> > Any feedback or tips would be great--especially from someone who has

> > written a Maven goal before.
> >
> > Thanks,
> > --Erik
> >
> >
> > ********************************************************************
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> > __
> > The information in this email (including any attachments) is
confidential
> > and may be legally privileged. Access to this e-mail by anyone other
than
> > the intended addressee is unauthorized. If you are not the intended
> > recipient of this message, any review, disclosure, copying,
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>
>
> --
> -- Lee Meador
> Sent from gmail. My real email address is [EMAIL PROTECTED]
>
>


-- 
Jean-Laurent

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