Rick Moynihan <rick.moyni...@gmail.com> writes:
> One problem I do have with clojure-mode/clojure is managing the
> classpaths for clojure projects... It seems that the typical elisp
> config only has one variable (which is then shared across all clojure
> files) for specifying the classpath...
>
> Personally I'd like to maintain the required classpath with the
> project and outside of my .emacs files and was wondering if anyone had
> any elisp setups to work around this.... I was thinking maybe having
> clojure-mode search every directory up from the file your editing for
> a .classpath file to pass to a clj bash script for evaluation... How
> does everyone else do this?
The solution I've settled on is the clojure-project function:
(defun clojure-project (path)
"Setup classpaths for a clojure project and starts a new SLIME session.
Kills existing SLIME session, if any."
(interactive (list
(ido-read-directory-name
"Project root: "
(locate-dominating-file default-directory "src"))))
(require 'swank-clojure)
(when (get-buffer "*inferior-lisp*")
(kill-buffer "*inferior-lisp*"))
(add-to-list 'swank-clojure-extra-vm-args
(format "-Dclojure.compile.path=%s"
(expand-file-name "target/classes/" path)))
(setq swank-clojure-binary nil
swank-clojure-jar-path (expand-file-name "target/dependency/" path)
swank-clojure-extra-classpaths
(append (mapcar (lambda (d) (expand-file-name d path))
'("src/" "target/classes/" "test/"))
(let ((lib (expand-file-name "lib" path)))
(if (file-exists-p lib)
(directory-files lib t ".jar$"))))
slime-lisp-implementations
(cons `(clojure ,(swank-clojure-cmd) :init swank-clojure-init)
(remove-if #'(lambda (x) (eq (car x) 'clojure))
slime-lisp-implementations)))
(save-window-excursion
(slime)))
This just resets the classpath to include target/dependency/ as well as
any jars in the lib/ directory of your project. I've included this in
the Emacs Starter Kit but haven't included it in clojure-mode yet since
I haven't quite decided if it's suitable for everyone. But it seems
there's a demand for it; so I guess I'll include it.
Another option is to use directory-local variables using a
.dir-locals.el file in your project root, but that can only set values
for variables, it can't do things like add a value to an existing list,
so its utility is limited.
-Phil
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