Ant using Fileset in jar task and renaming files - ant

I have the following piece of code:
<jar destfile="${jar.file}">
<fileset dir="${basedir}/resources"/>
<include name="META-INF/ejb-jar.xml"/>
<include name="META-INF/persistence-prod.xml"/>
</fileset>
[...]
</jar>
The problem is that persistence-prod.xm1 should be persistence.xml when placed in the jar.
I know I could create a working directory and layout my whole jar there, and then jar that up. I know I can copy that one file elsewhere and rename it while copying. If I had a whole bunch of files named *-prod.xml to be renamed *.xml, I can use a file mapper inside the copy task. However, I want to be able to rename the file right in the <jar> task. I tried adding <globmapper> to the jar task, but I got the error message: jar doesn't support the nested "globmapper" element.
Any idea how this rename can take place while jaring the file?

Of course, the minute I asked the question, I figure out the answer:
I can't put <globmapper> directly into a <jar> task, but I can include <mappedresources> into the <jar> task, and place my <globmapper> in there:
Wrong:
<jar destfile="${jar.file}">
<fileset dir="${basedir}/resources"/>
<include name="META-INF/ejb-jar.xml"/>
<include name="META-INF/persistence-prod.xml"/>
</fileset>
<globmapper from="*-prod.xml" to="*.xml"/>
[...]
</jar>
Right:
<jar destfile="${jar.file}">
<fileset dir="${basedir}/resources"/>
<include name="META-INF/ejb-jar.xml"/>
</fileset>
<mappedresources>
<fileset dir="${basedir}/resources">
<include name="META-INF/persistence-prod.xml"/>
</fileset>
<globmapper from="*-prod.xml" to="*.xml"/>
</mappedresources>
[...]
</jar>
I guess this makes sense since it limits my file mapping to just the <mappedresources> and not to all <fileset> of the <jar> task.

Related

How to do recursive copy of files and directories using ant task

Ant has inbuilt Copy task to copy multiple files.
I tried to define following target in build.xml file
<target name="copyFile">
<copy todir="../CHECK">
<fileset dir=".">
<patternset id="AllFiles">
<include name="*"/>
</patternset>
</fileset>
</copy>
</target>
It is copying files and directories. However content within directories is not copied, instead directories are copied as empty to destination "../CHECK". Does Ant copy task provides capability to do recursive copy of files and directories
I found the answer
name pattern in include should be "**" instead of "*". It does recursive copy of all contents
<target name="copyFile">
<copy todir="../CHECK">
<fileset dir=".">
<patternset id="AllFiles">
<include name="**"/>
</patternset>
</fileset>
</copy>
</target>

Copying the most recent files with Ant

So I have a bunch of Jars in a directory that look like this:
library_2.4.3.jar 2/3/2012
library_3.0.1.jar 9/1/2012
api.lib_10.3.jar 3/2/2011
api.lib_12.4.5.jar 6/9/2012
I have already written the following using Ant 1.7 to copy the jars to where I want them and strip away the version number from the file
<copy todir="${lib.dir}" overwrite="true">
<fileset dir="${plugins.dir}">
<include name="library*.jar" />
<include name="api.lib*.jar" />
</fileset>
<regexpmapper from="(.*)_(.*).jar" to="\1.jar"/>
</copy>
The problem I'm running into is that I want it to copy the newer version of the file. Right now it seems to be copying only the older files. I have looked into the <sort> and <TimestampSelector> tasks but those are not supported under the copy task.
What can I do to copy the newer versions of the file?
Do not put them under the copy task directly... Create the property and use the property in the copy tag...
<timestampselector property="latest.modified">
<path>
<fileset dir="${my-directory.dir}">
<include name="file-*" />
</fileset>
</path>
</timestampselector>
<copy todir="." file="${latest.modified}">
Hope, it works.

A zip file cannot include itself - Ant build error

I have error at the first line of the following code while building with Ant builder,
<war warfile="${wartemp.dir}/${name}.war" basedir="${wartemp.dir}" webxml="${wartemp.dir}/WEB-INF/web.xml">
<include name="*"/>
<include name="scripts/**"/>
<include name="styles/**"/>
<include name="images/**"/>
<include name="WEB-INF/*.*"/>
<include name="WEB-INF/lib/**"/>
<include name="WEB-INF/views/**"/>
<include name="WEB-INF/classes/**"/>
<include name="WEB-INF/jsp/**"/>
<include name="WEB-INF/resources/**"/>
<include name="WEB-INF/spring/**"/>
<include name="WEB-INF/messages/**"/>
<include name="WEB-INF/layouts/**"/>
<exclude name="WEB-INF/web.xml"/>
<exclude name="**/.*"/>
</war>
The error message is:
"... /WEB-INF/build.xml:67: A zip file cannot include itself"
line 67 is the first line of the snippet posted above.
I am beginner to Spring framework. I am using Spring version 3 with springsource toolsuite. How to fix this?
thanks.
Your basedir is the same dir as where you are sending the outputted war file. This is not a problem in itself, the problem is you are including * as input which will include the output file.
To fix this you could either exclude the output file from the included files, e.g.:
<exclude name="${name}.war"/>
or you could write the war file to a different directory structure than you are reading from, e.g.:
<mkdir dir="${war.output.dir}" />
<war warfile="${war.output.dir}/${name}.war" ...>
I guess I found another cause of the "A zip file cannot include itself" problems in any "zip-alike" Ant tasks (zip, jar ...):
Remember, setting the "basedir" attribute is already the first set of files to include! You need to explicitly exclude the zip file being created at this level (with "excludes" attribute. Or, starting with Ant 1.7, with nested "excludes" element).
The "fileset" nested element is another "set" for the zip task. You should ensure that the zip "itself" will be excluded from the set also with another explicit exclude. And so on...

How do you use ant to unjar multiple JAR files and rebuild them into one JAR file?

I would like to unjar multiple JAR files and then rebuild into one JAR using an ant build script. Is this possible?
Yes, it's possible with ant. A jar file is basically a zip with a special manifest file. So to unjar, we need to unzip the jars. Ant includes an unzip task.
To unzip/unjar all the jar files in your project:
<target name="unjar_dependencies" depends="clean">
<unzip dest="${build.dir}">
<fileset dir="${lib.dir}">
<include name="**/*.jar" />
</fileset>
</unzip>
</target>
Obviously you need to declare ${build.dir} and ${lib.dir} first. The line <include name="**/*.jar" /> tells ant to include all files that end up with the jar extension, you can tweak that include to suit your needs.
To pack everything into a jar, you use the jar task:
<target name="make_jar" depends="compile, unjar_dependencies">
<jar basedir="${build.dir}"
destfile="${dist.dir}/${project_name}.jar">
<manifest>
<attribute name="Main-Class" value="${mainclass}" />
</manifest>
<fileset dir="${build.dir}">
<include name="**/*.class" />
</fileset>
<fileset dir="${src.dir}">
<include name="applicationContext.xml" />
<include name="log4j.properties" />
</fileset>
</jar>
</target>
In this example, we include different filesets. In one fileset we are including all compiled classes. In another fileset we include two config files that this particular project depends upon.
Yes it is !
You have two possibilities :
Espen answer :
One possible solution that creates one
jar file from all the jar files in a
given directory:
<target name="dependencies.jar">
<jar destfile="WebContent/dependencies.jar">
<zipgroupfileset dir="lib/default/" includes="*.jar"
excludes="*.properties" />
</jar>
</target>
This is useful if you don't need to exclude content that are in some jars (like for example some properties configuration file that might override yours, etc). Here the excludes properties is filtering out files from the dir property.
Use zipfileset
The other solution is to use the zipfileset tag where the excludes property this time will filter out content from the jar to be merged.
<jar destfile="your_final_jar.jar" filesetmanifest="mergewithoutmain">
<manifest>
<attribute name="Main-Class" value="main.class"/>
<attribute name="Class-Path" value="."/>
</manifest>
<zipfileset
excludes="META-INF/*.SF"
src="/path/to/first/jar/to/include.jar"/>
</jar>
Of course you can combine the two tags (zipfileset and zipgroupfileset) inside the same jar tag to get the best of the two.
Yes, it's possible.
One possible solution that creates one jar file from all the jar files in a given directory:
<target name="dependencies.jar">
<jar destfile="WebContent/dependencies.jar">
<zipgroupfileset dir="lib/default/" includes="*.jar"
excludes="*.properties" />
</jar>
</target>
There is also a project devoted to repackage jars called JarJar. You can use it to repackage mutiple Jars into one. Depending on your requirements, you can even rename classes to prevent version conflicts.
From their getting started page:
In this example we include classes from jaxen.jar and add a rule that changes any class name starting with "org.jaxen" to start with "org.example.jaxen" instead (in our imaginary world we control the example.org domain):
<target name="jar" depends="compile">
<taskdef name="jarjar" classname="com.tonicsystems.jarjar.JarJarTask"
classpath="lib/jarjar.jar"/>
<jarjar jarfile="dist/example.jar">
<fileset dir="build/main"/>
<zipfileset src="lib/jaxen.jar"/>
<rule pattern="org.jaxen.**" result="org.example.#1"/>
</jarjar>
</target>

Ant - copy only file not directory

I need to copy all files in a folder except directory in that folder using Ant script.
Im using below script to do that.
<copy todir="targetsir">
<fileset dir="srcdir">
<include name="**/*.*"/>
</fileset>
</copy>
But it copies all files and directory in that folder.
how to restrict/filter directory in that folder?
thanks,
I think there is an easier way.
flatten="true" - Ignore directory structure of source directory, copy all files into a single directory, specified by the todir attribute. The default is false.
Do you mean that srcdir conatins sub-directories, and you you don't want to copy them, you just want to copy the files one level beneath srcdir?
<copy todir="targetsir">
<fileset dir="srcdir">
<include name="*"/>
<type type="file"/>
</fileset>
</copy>
That should work. The "**/*.*" in your question means "every file under every sub directory". Just using "*" will just match the files under srcdir, not subdirectories.
Edited to exclude creation of empty subdirectories.
I do not have enough reputation to comment, so I'm writing new post here. Both solutions to include name="*" or name="*.*" work fine in general, but none of them is exactly what you might expect.
The first creates empty directories that are present in the source directory, since * matches the directory name as well. *.* works mostly because a convention that files have extension and directories not, but if you name your directory my.dir, this wildcard will create an empty directory with this name as well.
To do it properly, you can leverage the <type /> selector that <fileset /> accepts:
<copy todir="targetsir">
<fileset dir="srcdir">
<include name="*"/>
<type type="file"/>
</fileset>
</copy>
Can you try
<copy todir="targetsir">
<fileset dir="srcdir">
<include name="*.*"/>
</fileset>
</copy>
** is used to match a directory structure.
<copy todir="targetsir" includeEmptyDirs="false">
<fileset dir="srcdir">
<include name="*"/>
</fileset>
</copy>
If your folder has many subdirectories and you don't want them to be copied (if you want only files) try this..
<target name="copy">
<copy todir="out" flatten="true">
<fileset dir="tn">
<filename name="**/cit.txt" />
</fileset>
</copy>
</target>
The secret is to use not fileset but dirset instead.

Resources