I have a project that contains xml files. I also have an Ant build in that project to generate documentation based on the xml files. The Ant build calls a Ruby script for generation.
I would like a way run that Ant build after the modification of any resource in the "{project}/xml" folder. I know that I can right click on the build.xml and Run As->Ant Build, but I want it to be more like the incremental build for Java projects. I have tried creating a builder, importing the Ant build and setting up relevant resources, but when I make a change to the XML file, a build does not start. I have "Build Automatically" checked for the project as well.
This must be possible. What am I missing?
A custom builder will only run when a file is saved that is in a source directory. Make sure the /xml folder is included as a source location in the Project Properties, Java Build Path.
Related
I have search for an Option in eclipes to let him validate the contents of JSP files automatically when the workspace ist compiled.
I didn't find any usefull results.
Do you have an idea how to do that?
You can do this via a project builder Ant build file.
See Eclipse help: Creating a project builder Ant buildfile
The org.eclipse.help.webapp project does the same:
The Ant build file to compile the JSP files
The Ant file added as project builder (to automatically run the Ant script when the workspace ist compiled)
I know eclipse can automatically create a build file for a given project through its inbuilt wizard (Export->General->Ant File).
But wondering how to do the same if my project is in Netbeans.
Does NetBeans also provide a similar wizard screen to create build file. If not, any other way around.?
NetBeans uses Ant as its build system. Ant build script is already there (unless you used Maven project type).
Some related questions are linked in How do I build ant's build.xml using NetBeans?
I could not find to create build file from Netbeans. But found a workaround, by creating a build for my project in eclipse and then modifying it to suit to netbeans project structure.
Windows 7 Professional
Eclipse 3.7.2
I am migrating over to Eclipse from another IDE. I am compiling my project with the same ANT build.xml file I was using before. I do it by
highlighting my project in the project view
expanding the tree node
finding my build.xml file there
right clicking my build.xml file
choosing Run as > Ant Build
Works great, but every few builds Eclpise eats my log4j.properties file located at:
C:\AllProjects\Workspace\acme\war\WEB-INF\classes\log4j.properties
Eclipse basically eats all files in WEB-INF\classes that are not *.class files.
What am I doing to make this happen and how can I stop it?
Thanks
Since you're using ant instead of Eclipse to build, you could try turning off the setting to build the project automatically.
Select your project, then in the menu bar at the top of the screen, select Project and uncheck the Build Automatically option.
Edit: Second opinion
I would add an ant task to copy the log4j property file into your WEB-INF/classes folder every time you do a build. One nice advantage of this is that you can have a different property file for different build types (debug, release, etc.) and not worry about manually making changes to it. Also, this should make it easier to manage if you're using version control.
Copy your log4j.properties file to your source directory and add something like this to your ant build file:
<target name="copy-log4j-property-file">
<copy file="src/log4j.properties" todir="WEB-INF/classes" />
</target>
<target name="build" depends="copy-log4j-property-file">
<!-- the rest of your build things here -->
</target>
After selecting in Project explorer:
Properties > Java Compiler > Building > Output Folder
Uncheck "Scrub output folders when cleaning projects"
It is a solution for me ( though maybe not everyone ) because I use a time test ANT build.xml to do my compiling, building and cleaning for me. I just leave Eclipse's auto builds on so I get those nice error notifications as a I type, before I compile.
I have a Java project in Eclipse. Some Java source code files are generated from an XML file with an XSLT style sheet. Currently, I'm manually rebuilding these files with rules defined in an external makefile when I realize the XML file has changed. It would be nice to have Eclipse know that it has to regenerate the files on build and delete them on clean. Is it possible to register some kind of hook for this?
The easiest way is to write an Ant build file with clean and build targets. And then, add a builder to the project. (Project > Properties > Builders > New > Ant Builder.) On the targets tab, set the targets you want run under the various build triggers. On the refresh tab, set the resources to refresh so the workspace detects the changes that your Ant file will make.
Since you are doing an XSL transform, the built-in Ant xslt task helps because it can check if the output is up-to-date with the input and skip the transform if it is not needed. And, of course, for the clean target, you can use the delete task.
Ant comes with Eclipse and Eclipse adds a few more tasks and properties that you might eventually find useful.
If you did want to stick with your make file, you could add an External Program builder instead and use the build_type variable as an argument.
I am developing JSR 268 compliant portlet and utility with eclipse.
Now, the utility is designed to be a separate JAR from the portlet itself.
Does anyone now how to write an ant build.xml that will
1. Compile and JAR my utility class
2. Move the JAR to the ./lib folder of the portlet
3. Compile and maybe even delpoy the portlet to a tomcat running on localhost?
My biggest problem right now are the build-time dependencies. I dont want to hardcode all the folders as I share this project with two other developers which are on another platform.
Is it possible to reuse the buildpath from eclipse?
Thank you in advance,
Felipe
Does this wizard help
Rigth-click on project -> Export ... -> Ant buildfiles.
?
Though you probably have figured something out by now, for future references I would suggest taking a look at Eclipse's ability to use Ant files as project builders.
An advantage of this is, that will happen automatically as you build and since you only pack and copy the jar file, you don't have to worry about changes in e.g. the class paths, as you would in the two previous answers
Create a ant file that jar the utility project. Follow: [1]
Add it as a ant-builder to your utility project as described in [1]
Now Eclipse will automatically generate the jar file every time you build.
Extend the ant script to also copy to jar file to the lib dir.
Eclipse have ant task to convert workspace/project relative paths to
normal file paths. See [2]. Note that for those tasks to work, you must select ''Run is the same JRE as the workspace'' under the ''JRE'' tab when configuring the ant builder
In order to ensure your utility is build first add a project reference from your portlet to your utility project right click > properties > project references
When you build the following will now happen:
You utility project will build first, because of the project reference
The ant-builder will pack the jar, and copy it to the lib folder.
You portlet project will build using the new jar.
[1] http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.user%2FgettingStarted%2Fqs-92_project_builders.htm
[2] http://help.eclipse.org/galileo/index.jsp?topic=/org.eclipse.platform.doc.isv/guide/ant_eclipse_tasks.htm
For 1. Just use the and Ant tasks
For 2. Is it on a remote server? How do you get it there? Windows share?
For 3. Set up the Tomcat manager and then use Tomcat's deploy/undeploy Ant tasks:
http://blog.techstacks.com/2009/05/tomcat-management-setting-up-tomcat.html
<taskdef name="deploy" classname="org.apache.catalina.ant.DeployTask" />
<taskdef name="undeploy" classname="org.apache.catalina.ant.UndeployTask" />
If you want to avoid hard-coding paths, try to use relative paths. Where are you dependencies right now? What do you feel you may have to specify an absolute path for?
In Eclipse,
Goto Window->preference->Ant->Runtime->Classpath->ant Home
Then add what are the thing u need to add,atlast click ok button to create ant file.