I agree you'd need a way to turn it off, but I disagree that just adding
to the LOCALCLASSPATH solves the problem. Or at least, we could do a
better job in my opinion.
What I was thinking of is something like this: running "ant -install
new-antlib.jar" could automatically copy the file to ${ANTLIB_HOME}, or
if that were not set to a compiled-in default location (or loaded from
an ant.conf file) like "${ANT_HOME}/antlib". That way different
distributions could define the default location they preferred, but a
user could still change it either temporarily or permanently.
The advantage to this is that control of the antlibs would be given to
ant, which knows the most about them. Antlib-specific behaviour like
validating the antlib, or providing a versioning mechanism, or some
other feature we think of later would be much easier to do this way, it
seems to me.
The downside is that the control is pretty coarse-grained: either you
accept all the antlibs installed in ${ANTLIB_HOME}, or none of them.
There is also the potential for all of the issues that installed
extensions have had.
Stefan Bodewig wrote:
On Fri, 11 May 2007, Bruce Atherton <[EMAIL PROTECTED]> wrote:
What do people think about Ant supporting a way to install and
remove antlibs from the command line into a standard antlib
directory that is automatically added to the classpath on startup?
That would support the creation of separate debian packages for
individual antlibs. Installed antlibs could be made automatically
available to any build file.
This would be a system wide installation, so as a user you'd need a
way to turn it off. There may be situations where your system
administrator has installed something into that directory that you
don't want to have on your CLASSPATH (version conflicts ...).
We already have a lot of support for RPM builds in our starter script.
We could simply hook in Debian systems using the same mechanisms
without changing anything. Just provide a /etc/ant.conf which adds
the directory (or the jars contained in it) you talk about to
LOCALCLASSPATH and you are done.
Stefan
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