I have a maven project which is configured (via the use of pom.xml and assembly.xml) to package a zip file containing both the compiled webapp (war file) and all files under src/main/folder alongside it whenever we run mvn clean package assembly:single.
This project imports/uses another maven project (which becomes a jar file) and that project in turn also imports/uses a third maven project (again a jar file).
The third project also contains some files inside src/main/folder as well which I'd like to be placed alongside the other files in the zip file whenever I build the main project (the one on top of the chain that becomes a war file).
Is it possible somehow to tell maven to include all files in a specific folder inside all it's dependencies (Or in one specific dependency) alongside in the zip file?
Start here: Maven: The Complete Reference - 8.5. Controlling the Contents of an Assembly
Note that if you deploy a Maven project with assembly:assembly (which you really should configure as a <build> plugin, not use on the command line), the assemblies get "attached" to the project and installed in the repository. You can then reach them using the Maven dependency notation, i.e. mygroup:myartifact:extrafiles:zip
I've found the Assembly descriptor <dependencySets> cumbersome to configure. They really are for the simple case (including the JAR files your application needs at runtime).
Here is the general approach I would take for your desired outcome:
Use Maven Dependency Plugin dependency:copy to download the specific files from the other projects, placing them under a sub-directory of target/
Configure your assembly descriptor to add those downloaded/extracted files to your final assembly artifact.
Alternatively, hack something together using Maven Ant Run Plugin.
You will need to produce an additional assembly from the third project to package up the extra files. Append the assembly id so it produces a package named something like third-1.0.0-extrafiles.zip
Then add this as a dependency of your first project using <type>extrafiles</type> in the dependency descriptor. In the assembly for the first project you'll have to tell it to "unpack" the dependencies of this type (so you don't get a zip in a zip)
Related
I'm looking to pull all of the dependencies from each module of my maven project and stick them into a single tar.gz file using the maven-assembly-plugin.
I currently have a pom setup as a parent to all of the modules. My idea was to use the maven-dependency-plugin to copy all of the dependencies to a single folder in the parents directory however when i use
<configuration>
<outputDirectory>${project.build.directory}/lib</outputDirectory>
</configuration>
The dependencies are copied into the modules build directory. Is there any way to set this output directory to one inside the parent project?
You are going at it the wrong way.
Instead of creating this archive inside the parent POM, you should create another module which will be responsible for creating it. This new module will have dependencies on all the other modules.
To create the archive, you need to use the maven-assembly-plugin. I strongly suggest that you read Chapter 8. Maven Assemblies of the Maven book to get you started with using assemblies. Basically, an assembly is created with the help of an assembly descriptor. In your case, you will need to configure this descriptor to use the tar.gz format.
I want to include source files also in Maven - War file . Some plugins in maven will do that but they are including source files in classes folder. But my requirement is that when I import the same war file again into eclipse I should be able to work on that war like any other normal war.
Basically I should be able to work on the same war after importing it to eclipse when I build maven project. (I'm using maven3. )
I remember that's not trivial because the war-plugin doesn't support the handy includes-configuration-element you know from the jar-plugin by default.
Therefore I suggest you to use the maven-assembly-plugin to configure the inclusion of your sourcefiles. You only need to define an assembly descriptor, where you list includes and excludes of your war-package. Maybe you can reuse one of the predefinied assembly descriptors to save some time.
As part of my build process, I am generating a separate artifact (compressed file with static web files inside) in the which I would like to contain the same information that is in the manifest file generated by the war plugin. The manifest file is generated correctly into the war file, but I'd like access to it so I can copy it and put it in my compressed file as well.
In the documentation for the maven-war-plugin:manifest goal, it reads:
The manifest file is created in the warSourceDirectory.
Which defaults to the location: ${basedir}/src/main/webapp
However, the only manifest that is generated is within the war. It doesn't make sense to me either that the generated manifest file would be put into my source. I would think that it would be put in the target where the war is packaged from.
Am I missing something?
If you look at the built-in lifecycle reference you will see that at no point in the <packaging>war</packaging> lifecycle is the war:manifest goal bound to any phase.
Thus by default this goal will not execute (unless you add an execution).
If there is a MANIFEST.MF file at ${basedir}/src/main/webapp/META-INF/MANIFEST.MF then when the war:war goal is executing it will use that file rather than generating the MANIFEST.MF on the fly and embedding it straight into the .war file without creating an intermediary file.
From what I can tell, the war:manifest goal is designed to be used to generate a template MANIFEST.MF which you can then customise and use going forward.
The war plugin has a number of goals which I would tend to advise keeping clear of:
war:inplace
war:manifest
The reason is because both of these goals modify the files in your src tree which goes against the standard Maven practice of only touching files in target (which makes for a very nice mvn clean as you need only remove the target)
With regards to your question, the key thing is that you are generating a separate artifact. Maven works best when you stick to one artifact per Maven module. Thus the separate artifact will have a separate module. You just add the .war as a dependency (remember <type>war</type>) and then use dependency:unpack-dependencies to unpack the .war file... you can have it only unpack the META-INF/MANIFEST.MF and if that ends up as target/${project.build.finalName/META-INF/MANIFEST.MF then when you are packing up this second artifact you will ensure it has the same manifest as your .war file.
I have an existing mvn project which build into a zip file at the end.
now I need to add an external tool to it, the tool is already a single executable so I just need to include it in the final package.
what is the right way to do this?
Thanks,
There are three steps to follow:
Upload your artifact/tool to a maven repository, e.g. on your local maven repository server (Archiva/Artifactory/Nexus etc.)
Use the Maven Dependency Plugin to download your artifact/tool to your project target directory where you assemble your zip file
Use the Maven Assembly Plugin to assemble your zip file
I have an EAR file which I want to update. I do this in Ant by unzipping the EAR and then the JAR, replacing a few files and then repackaging it.
I am trying the same with Maven but with little success and it is also confusing.
So far I have done
1) installing the EAR file in the local maven repository
2) unpack it
3) Replace the file I need
Now I am not sure how to get back the new EAR file. Everything is in the repository.
From my understanding, the EAR plugin packs everything in the ejb, war folders and spits out the ear. But since I directly got the EAR file, I do not have any project per se.
Any suggestions on this?
Also is there a good tutorial on Maven?
Thanks,
You should probably perform the following steps, using a "blank" Maven project and assuming the EAR file is already inside a repository (pushed by another project/tool):
use the dependency:unpack mojo to get and unpack (inside the /target/ folder of your project) the EAR
modify the contents
use the assembly plugin to repack that EAR file
Then do what you need to do with that new EAR file.
A "blank" Maven project would mean that it will not act as a usual project (compile sources, package output...), but rather serve to manipulate existing artifacts through specific plugins.