On Jul 8, 2010, at 7:49 PM, Laurent PETIT wrote: > >> 2010/7/9 Lee Spector <lspec...@hampshire.edu> >> >> How is the Clojure version set in Eclipse/Counterclockwise projects? I'm >> still wanting to work in 1.1.0, and while my older projects are using 1.1.0 >> my newer ones -- I guess maybe this changed after upgrading to >> Counterclockwise 0.0.59.RC2 -- are running with 1.2.0-master-SNAPSHOT. I >> don't see where I can set this when creating a new project or how to change >> it for an old project. I vaguely remember seeing a way but that may very >> well have been in NetBeans, which I was experimenting with a little earlier. >> I imagine I could manually copy files around to make this work, but there >> ought to be a better way, at least when creating a new project. > > Hi, > > Again, the answer is: it works with out-of-the-box Eclipse options: a clojure > project is a java project. With additional goodies, but still a java project. > So clojure, clojure-contrib etc. are viewed as java dependencies for the > project. How do you change this ? In your project, go to Project > Properties > > Java Build Path > Libraries . In this form, you can manage the > dependencies of your project. That is you can remove the dependencies that > have been installed by default by CCW, and point to other clojure, > clojure-contrib of your choice (currently you must have not only clojure, but > also clojure-contrib in your dependencies/classpath. This will disappear with > the next release, as forcing every project to depend on clojure-contrib is > too high a barrier).
Given that it works this way the default dependencies should be for the current stable versions of the libraries, which would be Clojure 1.1. Newcomers (like me) shouldn't be given 1.2 snapshots by default. Although I don't know what's involved in modifying the "new project" wizard, I think it would be much better to add something there that allows selection among Clojure versions than to force users to create a project with the wrong version and then go and delete the libraries, independently find the versions they want elsewhere on the web, download them separately, put them in the right place, make the project point to them, etc. One of the main reasons I'm working with Eclipse/Counterclockwise in the first place is the relative ease of starting from nothing, downloading & installing, and beginning to write and run Clojure programs. I didn't have to find/download/install/configure anything else, and that was crucial. If I'll have to jump through those kinds of hoops anyway, just to use the right version of Clojure, then it's considerably less appealing for my purposes. Even though I now appreciate that Counterclockwise has several other very nice features the ease of getting started is one of my top priorities. Following your instructions I was able to modify a new (1.2 snapshot) project to use 1.1.0 but it required several steps: removing the dependencies, then also deleting the jars from the project in the Package Explorer, then copying the 1.1.0 jars from an older project into the newer one (and I was only able to do this because I had an old project that I created before 1.2 snapshot was the default -- if my students start from scratch they'll have to find the 1.1.0 jars elsewhere and put them in the right places via the OS, not in the Package Explorer), then go back into the Project > Properties > Java Build Path > Libraries dialog to add the new dependencies. This is quite a lot to add to the process every time I want to create a new project, and for newbies there will be many steps at which something can go wrong. (Update: I found a slightly shorter way but it also relies on having an old project around and also seems to require a "Clean"... still not nearly as good as being able to create the project with the right Clojure version in the first place.) BTW I would also personally very much like contrib also to always be available without having to do any other downloading or configuration. -Lee -- Lee Spector, Professor of Computer Science School of Cognitive Science, Hampshire College 893 West Street, Amherst, MA 01002-3359 lspec...@hampshire.edu, http://hampshire.edu/lspector/ Phone: 413-559-5352, Fax: 413-559-5438 Check out Genetic Programming and Evolvable Machines: http://www.springer.com/10710 - http://gpemjournal.blogspot.com/ -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
