We already have swank, lein repl, cake, nrepl, detour, clj, reply, … and now we have the combo "cljsh & repls".
"repls" is a lein plugin, which is essentially leiningen's native "lein repl" task with some default config options for the (not-)printing of eval results and repl-prompt. It gives you a persistent repl-server that uses the basic repl-protocol: clj-code as text for the reader thru stdin, and evaluated results and printed side-effects thru stdout. Install it with "lein plugin install lein-repls 1.6.0", and run the repl-server in your project directory with "lein repls", and just leave it running... "cljsh" is a "clojure shell" bash-script that uses "socat" under the covers to make the repl-server's stdin and stdout appear local to cljsh. It allows for a relatively simple sending of clj-statements and clj-files to the persistent repl-server. cljsh is also very lightweight, like cake/nailgun, with a negligible startup time, which makes the evaluation of much of your clj-code almost instant. You run cljsh like a normal shell script, like bash or sed, and pass clj-code statements and files as command line directives or piped-in thru stdin. That code is sent to the persistent repl-server, and the printed results and output are available on cljsh's stdout. Almost sounds too simple… Download the cljsh script from github: "https://raw.github.com/franks42/lein-repls/master/bin/cljsh.sh"; and put it somewhere in your path. An example command line invocation looks like: $ cljsh -c '(println "hello")' hello $ or a more contrived example: $ cat third.clj | cljsh -c '(println "first")' -i second.clj - fourth.clj -myargs The cljsh-test.sh script shows most of the supported features: "https://github.com/franks42/lein-repls/blob/master/bin/cljsh-test.sh";. cljsh also supports an interactive repl-mode with history and completion support thru rlwrap - pretty much like the other repls, except that this one starts-up instantly, and you can have multiple, concurrent repl-sessions working with the same persistent repl-server. (not sure why you would do that… but you can/could… ;-)). The completion words can easily be updated with cljsh to reflect the evaluation context, but remember that rlwrap is a poor-man's completion solution… even though it works pretty well most of the time. Possible usage scenarios. Easy to write cljsh-scripts that can be used to select code in any text editor or any app and send for evaluation. Select any symbol in any app/browser and lookup the doc. Use growl notification to show you the doc or the stack trace or eval result. Write your clj-based unix filter. Browse the filesystem with fs by changing the repl-prompt to reflect your cwd. Write your clj-based macosx automation service. Please let me know if you come up with any others… Even though it all seems to work pretty well on my macosx… your mileage may vary on the other unixes, and it most probably won't work on windows… maybe cygwin(?). Please let me know of any compatibilty issues. Next step: extend it to support clojurescript. (…driving a browser UI thru unix-style filters and scripts from the command line…) Please take a look at the README at: "https://github.com/franks42/lein-repls"; for details. Any feedback is very much appreciated. Enjoy, FrankS. -- 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
