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Metaverse

Parallel universes ... for namespaces!

Usage

The meta.verse/ns- macro lets you simultaneously load multiple revisions of a given namespace:

(require 'meta.verse)

(ns- my.namespace
  (:require [slam.hound.stitch :as stitch1
             :rev "1a98e2021313105a7e3c7dcd5be578caa812b347"]
            [slam.hound.stitch :as stitch2
             :rev "df185e59448b09c0985cbdaf167146cfd4e4df73"])

Currently this requires seeding the Metaverse home with revisions though.

(meta.verse.seed/-main "slamhound" "slamhound" "1.2.0")
(meta.verse.seed/-main "slamhound" "slamhound" "1.1.1")
(meta.verse.seed/-main "/home/phil/src/clj-http/src/clj_http/client.clj")

Seeding is currently manual.

Limitations

This won't allow you to load multiple Java classes at the same time, just Clojure files. See jarjar for some prior art in this area.

It's also currently not transitive.

License

Copyright © 2012 Seattle Clojure Group

Distributed under the Eclipse Public License, the same as Clojure.