[armedbear-devel] Folding Lisp application code into a JAR file in the Java CLASSPATH
evenson at panix.com
Tue Jan 12 11:56:07 UTC 2010
On 1/12/10 5:07 AM, Olsen, Peter C. wrote:
> Ladies and Gentlemen,
> Is there an elegant way to have ABCL load Lisp code from a JAR file in the
> Java CLASSPATH?
Unfortunately, not yet.
As it stands, "naked" ABCL really doesn't interact with the Java
CLASSPATH in any meaningful way for Lisp objects.
Once I get the the JAR file support working again, I could easily add
the following meaning to
CL-USER> (load "jar:file:foo.jar!/a/b/bar.abcl")
1. Resolve "foo.jar" with respect to *DEFAULT-PATHNAME-DEFAULTS*, and
if it exists, attempt to load "a/b/bar.abcl".
2. If resolution of "foo.jar" fails on the filesystem, iterate through
the CLASSPATH to match the name.
Alan Ruttenberg's [JSS] has long had the ability to dynamically add
JARs to the JVM CLASSPATH which would be nice to incorporate as well.
> I'm helping build an application to run under ABCL and I'd like to take all
> the code and roll it up into a JAR file in the CLASSPATH when I start the
> interpreter. If possible I'd then like to have ABCL find the file as though
> it were in the current directory. I know that ABLC is finding its system
> files in abcl.jar and I can load Lisp code from a local JAR file, but I
> haven't figured out how to put the two together and load Lisp elegantly from
> a JAR file in the CLASSPATH. I can do it inelegantly by getting the
> CLASSPATH from the Java System class, inspecting all its JAR files, then
> loading the right ones manually, but that seems awkward for a customer
It certainly should be a lot smoother by default.
"A screaming comes across the sky. It has happened before, but there
is nothing to compare to it now."
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