Hello clojurians,
It seems not to be able to control the whole classpath of my runtime.
But my aim, compiling with a path given at runtime and execute it, has been
achieved,
with
(.setContextClassLoader (Thread/currentThread)
(DynamicClassLoader. (.getContextClassLoader (Thread/currentThread)))
Details reported below.
Regards,
Yoshinori Kohyama
$ cat project.clj
(defproject dce "0.0.1"
:description "Dynamic Compling And Execution"
:dependencies [[org.clojure/clojure "1.3.0"]]
:main dce.core)
$ cat src/dce/core.clj
(ns dce.core
(:import java.net.URL clojure.lang.DynamicClassLoader)
(:gen-class))
(defn -main [abs-path target-ns & args]
(let [ccl (.getContextClassLoader (Thread/currentThread))
dcl (if (instance? DynamicClassLoader ccl) ccl
(let [l (DynamicClassLoader. ccl)]
(.setContextClassLoader (Thread/currentThread) l)
l))]
(.addURL dcl (URL. (str "file://" abs-path "/src/")))
(.addURL dcl (URL. (str "file://" abs-path "/classes/")))
(binding [*compile-path* (str abs-path "/classes")]
(compile (symbol target-ns)))
(def f (future (apply (resolve (symbol (str target-ns "/-main")))
args)))
(Thread/sleep 5000)
(future-cancel f)))
$ tree samples
samples
├── classes
└── src
└── foo
└── core.clj
3 directories, 1 file
$ lein repl
REPL started; server listening on localhost port 5997
dce.core=> (-main (.getCanonicalPath (java.io.File. "samples")) "foo.core"
"arg1" "arg2")
Foo: arg1 arg2
Foo: arg1 arg2
Foo: arg1 arg2
Foo: arg1 arg2
Foo: arg1 arg2
Foo: arg1 arg2
true
dce.core=> ^D
$ tree samplessamples
├── classes
│ └── foo
│ ├── core$_main.class
│ ├── core$loading__4505__auto__.class
│ └── core__init.class
└── src
└── foo
└── core.clj
4 directories, 4 files
$ lein uberjar
...
Created ... dce/dce-0.0.1-standalone.jar
$ rm -Rf samples/classes/*
$ tree samples
samples
├── classes
└── src
└── foo
└── core.clj
3 directories, 1 file
$ java -jar dce-0.0.1-standalone.jar `pwd`/samples foo.core arg1 arg2
Foo: arg1 arg2
Foo: arg1 arg2
Foo: arg1 arg2
Foo: arg1 arg2
Foo: arg1 arg2
^C
$ tree samples
samples
├── classes
│ └── foo
│ ├── core$_main.class
│ ├── core$loading__4505__auto__.class
│ └── core__init.class
└── src
└── foo
└── core.clj
4 directories, 4 files
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