I've written a preliminary cljc script -- a shell script for compiling
Clojure libs -- against Stephen's patched Clojure (specifically using
the clojure.lang.Compile class).
Configure the script with the locations of the clojure.jar & clojure-
contrib.jar & running cljc w/o options calls clojure.lang.Compile on
command-line args representing libs or namespaces. With options, it
can (1) wrap the contents of the build directory (hard-coded to be
"classes") into a jar file (with the first lib set to Main-Class) or
(2) wrap the contents of the build directory, the contents of
clojure.jar, & the contents of the clojure-contrib.jar into a jar file
(with the first lib set to Main-Class).
For example, if I have a Clojure lib in hello.clj
----- hello.clj --------
(ns hello)
(defn reverse-string
[s]
(apply str (reverse s)))
(defn -main
[& args]
(println (apply str (mapcat reverse-string (interpose " " (reverse
args))))))
-------------
& I call cljc in the same directory like this:
cljc -a hello
I'll get a jar file I can call like
java -jar hello.jar dlroW olleH
with these results
Hello World
That is, it's standalone (albeit at 1.4 Megs!).
Anyone who's built Stephen's patch can try it out; others please feel
free to offer suggestions.
Thanks,
Perry
--------------
#!/usr/bin/env bash
# cljc: Clojure lib compiler
cjar=PATH/TO/clojure.jar
ccjar=PATH/TO/clojure-contrib.jar
build=classes
usage()
{
echo "Usage: $0 [options*] lib+"
echo "Options:"
echo " (-cp|--classpath) list: colon-separated list of
directories or jar files to add to classpath"
echo " (-j|--jar): turn on creation of jar file"
echo " (-n|--name) name: specify the name of created jar file"
echo " (-a|--all): turn on inclusion of all jars in jar file
(clojure.jar and clojure-contrib.jar) -- will turn on --jar option as
well"
# echo " (-e|--extra-jars) list: colon-separated list of jars to
include in created jar file"
echo " (-h|--help): display this usage information"
echo
echo "If creating a jar file, the first lib listed will be the Main-
Class in the jar's MANIFEST."
}
while [ $# -gt 0 ]; do
case $1 in
-cp | --classpath ) shift; cp=$cp:$1; shift;;
-a | --all ) shift; all=true; jar=true;;
-j | --jar ) shift; jar=true;;
# -e | --extra-jars) shift; extra=$1; shift;;
-h | --help ) usage; exit 1;;
-n | --name ) shift; name=$1; shift;;
* ) break;;
esac
done
if [ -z "$1" ]; then
usage
exit 1
fi
mkdir -p $build
java -cp $cp:$cjar:$ccjar:$build clojure.lang.Compile "$@"
if test $jar; then
name=`! test -z $name && echo $name || echo $1`
jar cfe $name.jar $1 -C $build .
if test $all; then
tmp=scratch-temp-dir
mkdir $tmp && cd $tmp
for jar in $cjar $ccjar; do
jar xf $jar
done
cd -
jar uf $name.jar -C $tmp clojure
rm -r $tmp
fi
fi
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