Building along with Project Dependencies in Ant - ant

I have a Java project that is dependent on other Java projects that are siblings and there is a chain of dependencies. Each individual project has a build script written in Ant. For clarity find below a sample of the same.
EARProject depends on WebProject and EJBProject: The war file that is generated by the WebProject build and jar file that is generated by the EJBProject are needed to build the EARProject.
WebProject depends on ComponentOneProject: The jar file that is generated by the ComponentOneProject build is needed to build WebProject.
EJBProject depends on ComponentTwoProject: The jar file that is generated by the ComponentTwoProject build is needed to build EJBProject.
So, when I build the EARProject build, if the dependent war and jar have not been built yet, then it should kick-off the WebProject build and EJBProject build and if the ComponentOneProject is yet to be built, the build of ComponentOneProject needs to be kicked-off and so on.
Can someone suggest a clean method by which we can accomplish this?

Facing the same problem we at our company wrote a custom Groovy script that explores the full dependency tree ant generates the Ant build scripts based on all the .project, .classpath, .settings/* files. This wasn't as difficult as it might seem as first. This way we can build our products without (My)Eclipse on a clean CVS+JDK+Groovy virtual machine. Hope it helps..

Related

Maven Assembly Plugin and Executable jar

I'm able to successfully build the Maven assembly plugin in my project and generate a jar file with all the needed dependencies. But now I also want to instruct Maven after building me the jar file with dependencies, go into the target folder where the jar file with dependencies is located and run my main program.
Should I consider looking into the Maven Exec Plugin for what I want to acheive?
Yes the exec-maven-plugin is the right choice. The question is if you like to start the assembled jar archive or just a java class with it's dependencies.

How to Open an Ant project (Nutch Source) at Intellij Idea?

I want to open Nutch 2.1 source file (http://www.eu.apache.org/dist/nutch/2.1/) at Intellij IDEA. Here is an explanation of how to open it at Eclipse: http://wiki.apache.org/nutch/RunNutchInEclipse
However I am not familiar with Ant (I use Maven) and when I open that source file many classes are not known by Intellij.
i.e.:
org.apache.hadoop.mapreduce.JobContext
org.apache.gora.mapreduce.GoraMapper
How can I add them to library or what should I do?
I finally figure out how to do it. Now our team can dev nutch in IntellIJ
The process we do
Get nutch source from apache.org
wget http://www.eu.apache.org/dist/nutch/2.3/apache-nutch-2.3-src.tar.gz
Import nutch source in intellij
Get Dependencies by Ant
Run ant runtime
Run ant test
Import dependencies into Intellij
File > Project Structures
Library > Ivy
Click to Plus button
Select all libraries in apache-nutch-2.3/build/lib
Now we have a project with nutch source and all dependencies
I think, you should use ant build for nutch project. Because, pom.xml is problematical for nutch. If you want to use it anyway maven, you check maven dependency in pom.xml .
I think, the problem can be solved with the following:
You create new project via idea and add nutch source. Idea is not
supported ivy ant project. You can install ivy plugin for idea, I
suppose, Idea12 does not support it.
or
You can create ant project for nutch via eclipse and then save
project. Then open the project on idea via eclipse classpath.
or
You can configure classpath. If you use ant build, you should add jars : File->ProjectStructure as follows:
Create a library
Attach Files
Then, if you use ant build, select jars from NUTCH_HOME/build/lib/* after build.
If you use maven build, select jars from ~/.m2/* (MAVEN_REPO)
Although Intellij supports running ant scripts directly through the IDE via the ant plugin, the Intellij editor will not figure out the classpath using your build.xml file by itself.This will result in the editor showing the code littered with errors.
Unfortunately the only solution I found to this is to add all the jars manually.You can get all the jars needed by building the ant project using the ant jar command.
So these are the steps you need to follow :->
1.Run ant jar command in the root of your program
2.Copy all the jars created inside the build folder(they will not be directly inside build folder.I had to go from build->ivy->lib->{project name})
3.Paste these jars to a new folder created somewhere outside the directory
4.Go to File->Project Structure->Libraries. Press the + button.
5.Select all the copied jars and press ok to any prompts which appear.
6.Press finish and wait for indexing to complete.Any dependency errors in the editor should resolve now.
Note: Since you are manually adding jars, you would need to keep them in sync if you change your build.xml file for any dependency change.
It seems that dependencies are managed using Ivy (see the ivy folder in the sources archives), so you could try to install the Ivy plugin, which would allow you to fix your classpath issues.

How to install gradle-grails-plugin?

Complete gradle nooby here.
I want to be able to execute grails build commands like "grails compile", "grails test-app" and so forth from gradle.
I found the grails-gradle-plugin from Peter Ledbrook at: https://github.com/grails/grails-gradle-plugin.
Cloning the repository I get some files and folders. In the readme file it says " include the required JARs via buildscript {} and 'apply' the plugin". The apply part sure I get but how do I add the JAR? And which jar? Do I need to use gradle on the build file in the folder of the downloaded plug-in and compile a jar? And ones I get the jar where do I place it and how do I include it in my projects build.gradle file?
I have a feeling this is going to be ridiculously easy but I just can't get it to work.
In Gradle, the jars are added to build script or to your application class path through dependencies closure e.g.
dependencies {
compile "org.grails:grails-crud:1.3.4"
compile "org.grails:grails-gorm:1.3.4"
compile "ch.qos.logback:logback-core:1.0.7"
compile "org.slf4j:slf4j-api:1.7.2"
}
compile is a name of one of the many configurations (there are also test, runtime etc.) and e.g. "org.grails:grails-crud:1.3.4" is a reference to a jar in one of the public repositories, which are also specified in your scripts in repositories closure.
You can read more about Gradle dependency management in http://gradle.org/docs/current/userguide/dependency_management.html.
For your Grails project you need to define a build.gradle file which looks similar to what is described in the README.
Though I tried today to just create a simple Grails project using that plugin and gradle init command and it didn't work. I have created an issue for that: https://github.com/grails/grails-gradle-plugin/issues/16.

Intellij IDEA, build artifact using Ant?

I might be missing something, but I have been struggling with this problem for some time now.
I have an Web application with Ant build script. I would like to set up an Artifact to this module, (which is the .war file, generated using ant), so that I could deploy this war file, to the configured Tomcat server.
But I am not able to figure out, how to make Intellij use my Ant script to build artifact. I see an option to Run Ant Targets, but this just runs the Ant target and Intellij then proceeds to generate Artifact, in the usual way.
Please let me know if the question is ambiguous. The problem is not Ant Integration with Intellij. I could just use the Ant window and run any target and also could make an Ant target run as part of Build. The problem is to associate an Artifact to a module and leverage the Ant script to build that artifact. I need this to enable, tight tomcat integration, Since while integrating the Tomcat server, I can specify an artifact to be deployed.
Note: Intellij IDEA version 11.1
IDEA can either deploy Artifact or the External Source (directory or file) that is built by Ant or any other tool:
It's not possible to associate IDEA Artifact with Ant build.

Archiving artifacts not in the workspace when build fails

When an ANT build step fails in my build I'd like to archive the logs in order to determine the problem. The relevant logs, however, are not located in the workspace, so I have to use a full path to them.
The standard artifact archiving feature does not work well with full paths, so first I have to copy the logs into the workspace within some build step so that I can later archive them. I do not want to incorporate the copying code into the original ANT script (it does not really belong there). On the other hand, since the build step fails the build I can't execute the code that copies the artifacts into the workspace as a separate build step as it is never reached.
I am considering using ANT -keep-going option, but how will I then fail the build?
Any other ideas (artifact plugins that handle full paths gracefully, for example)?
Update: I've worked around the problem by creating a symbolic link in the workspace to the directory that contains the files to be archived. Kludgy, but effective.
I would recommend using Flexible Publish plugin in conjunction with the Conditional Build Step plugin.
The Flexible Publish plugin allows you to schedule build steps AFTER the build steps have normally run. This allows you to catch both successful and failed builds and execute something - say a script that copies the files from OUTSIDE the workspace to INSIDE the workspace. The Conditional BuildSet plugin allows conditionalizing the steps so that they only run when the build fails. Using these two plugins, you can copy the files into the workspace upon failure, then archive them with the usual Jenkins mechanisms.

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