FYI, you'll likely want to use committedRevisi...

2011-09-22T21:15:48.883-07:00

FYI, you'll likely want to use committedRevisionProperty rather than revisionProperty. The latter gets the number of the revision you have selected (normally HEAD, so the revision of HEAD across the repository), while the former gets the number of the revision last committed. That is generally more useful.

I.e., if you are building project A, which was committed at r1, but project B has been added to the repository at r2, HEAD (and thus revisionProperty) will be "2". committedRevisionProperty will be 1.

Here is another tip. Put this inside your <jar...

2009-05-30T22:43:53.267-07:00

Here is another tip.

Put this inside your <jar></jar> in ant:

<manifest>
<attribute name="Specification-Version" value="${version}" />
<attribute name="Implementation-Version" value="${TODAY}" />
<attribute name="Main-Class" value="com.foo.Version" />
</manifest>

package.com.foo;

public class Version
{
/** */
public static String getSpecification()
{
Package pkg = Version.class.getPackage();
return (pkg == null) ? null : pkg.getSpecificationVersion();
}

/** */
public static String getImplementation()
{
Package pkg = Version.class.getPackage();
return (pkg == null) ? null : pkg.getImplementationVersion();
}

/**
* A simple main method that prints the version and exits
*/
public static void main(String[] args)
{
System.out.println("Version: " + getSpecification());
System.out.println("Implementation: " + getImplementation());
}
}

Then, you can do this:

java -jar my.jar

No need to put version numbers in jar files ever again. =)

You also get to easily do this:

/** @return all the version numbers */
public Package[] getVersions()
{

Package[] packages = Package.getPackages();
return packages;
}

Then in a jsp page:

<table>
<tr>
<th>Package</th>
<th>Version</th>
<th>Implementation</th>
</tr>
<c:forEach var="pkg" items="${backend.versions}">
<tr>
<td><c:out value="${pkg.name}"/></td>
<td><c:out value="${pkg.specificationVersion}"/></td>
<td><c:out value="${pkg.implementationVersion}"/></td>
</tr>
</c:forEach>
</table>

To get something like this:

http://subethamail.org/se/version.jsp

-jon (author of svntask and appreciative of the nice comments about his project)

Comments on bizo developer blog: Exposing SVN version and build time with Ant

FYI, you'll likely want to use committedRevisi...

Here is another tip. Put this inside your <jar...