Re: Finding ClojureScript Libraries
I agree, that would be really helpful. And cool to see ClojureScript taking off like this! - Raju On Mon, Dec 29, 2014 at 4:49 PM, David Nolen dnolen.li...@gmail.com wrote: There's been an explosion of ClojureScript libraries over the past year. It would be nice to begin tracking them on the wiki so that newcomers can more easily get their bearings: If you have a ClojureScript library please add it to the following growing list: https://github.com/clojure/clojurescript/wiki#useful-libraries If your library works with both Clojure ClojureScript please note that. Thanks! David -- 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 --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: Browserless ClojureScript
Works fine for me, I'm on Mac Yosemite, Node version v0.10.33 (installed
through brew). I'll do a test run on Ubuntu, never used Nixos.
On Tue, Dec 23, 2014 at 11:11 AM, Andrew Keedle akee...@gmail.com wrote:
Never looked at Node before. I've followed the instructions, but I get
this error when running: node run.js
(I'm using nixos with node v0.11.13. Anyone got any clues?)
[keeds@pixie:~/workspace/hello-world]$ node run.js
/home/keeds/workspace/hello-world/out/goog/bootstrap/nodejs.js:69
process.binding('evals').NodeScript.runInThisContext.call(
^
Error: No such module
at Error (native)
at nodeGlobalRequire
(/home/keeds/workspace/hello-world/out/goog/bootstrap/nodejs.js:69:11)
at Object.anonymous
(/home/keeds/workspace/hello-world/out/goog/bootstrap/nodejs.js:77:1)
at Module._compile (module.js:449:26)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:349:32)
at Function.Module._load (module.js:305:12)
at Module.require (module.js:357:17)
at require (module.js:373:17)
at Object.anonymous (/home/keeds/workspace/hello-world/run.js:5:1)
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Re: Browserless ClojureScript
Seems to be a problem with newer versions of node. I've tested on Ubuntu
14.04. Everything up to Node.js version 0.11.6 is not causing any problems,
starting with 0.11.7 I can see the same error message you reported:
Installed node using https://github.com/creationix/nvm, which allows you to
easily switch between Node.js versions.
raju@ubuntu:~/coding/cljs/hello-world$ nvm install 0.11.6
100.0%
Now using node v0.11.6
raju@ubuntu:~/coding/cljs/hello-world$ node run.js
util.print: Use console.log instead
Hello world!util.print: Use console.log instead
raju@ubuntu:~/coding/cljs/hello-world$ nvm install 0.11.7
v0.11.7 is already installed.
Now using node v0.11.7
raju@ubuntu:~/coding/cljs/hello-world$ node run.js
/home/raju/coding/cljs/hello-world/out/goog/bootstrap/nodejs.js:69
process.binding('evals').NodeScript.runInThisContext.call(
^
Error: No such module
at nodeGlobalRequire
(/home/raju/coding/cljs/hello-world/out/goog/bootstrap/nodejs.js:69:11)
at Object.anonymous
(/home/raju/coding/cljs/hello-world/out/goog/bootstrap/nodejs.js:77:1)
at Module._compile (module.js:449:26)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:349:32)
at Function.Module._load (module.js:305:12)
at Module.require (module.js:357:17)
at require (module.js:373:17)
at Object.anonymous (/home/raju/coding/cljs/hello-world/run.js:5:1)
at Module._compile (module.js:449:26)
Probably a bug in the unstable version of node you are using. Looking at
the node.js website, the version they offer for download by defaut ist
0.10.34:
http://nodejs.org/download/
- Raju
On Tue, Dec 23, 2014 at 11:54 AM, Raju Bitter rajubit...@gmail.com wrote:
Works fine for me, I'm on Mac Yosemite, Node version v0.10.33 (installed
through brew). I'll do a test run on Ubuntu, never used Nixos.
On Tue, Dec 23, 2014 at 11:11 AM, Andrew Keedle akee...@gmail.com wrote:
Never looked at Node before. I've followed the instructions, but I get
this error when running: node run.js
(I'm using nixos with node v0.11.13. Anyone got any clues?)
[keeds@pixie:~/workspace/hello-world]$ node run.js
/home/keeds/workspace/hello-world/out/goog/bootstrap/nodejs.js:69
process.binding('evals').NodeScript.runInThisContext.call(
^
Error: No such module
at Error (native)
at nodeGlobalRequire
(/home/keeds/workspace/hello-world/out/goog/bootstrap/nodejs.js:69:11)
at Object.anonymous
(/home/keeds/workspace/hello-world/out/goog/bootstrap/nodejs.js:77:1)
at Module._compile (module.js:449:26)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:349:32)
at Function.Module._load (module.js:305:12)
at Module.require (module.js:357:17)
at require (module.js:373:17)
at Object.anonymous (/home/keeds/workspace/hello-world/run.js:5:1)
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Re: Persistent Data Structures for Objective-C/LLVM
Wow, that's incredible! Who would have thought that anything written in ClojureScript - and running inside a JS engine - could ever be so much faster than an Objective-C implementation! On Thu, Nov 13, 2014 at 5:17 AM, Mike Fikes mikefike...@gmail.com wrote: I'm thinking Anton's persistent collections could be useful on iOS. Out of curiosity, I made a small iOS project that compares the performance of Anton's map to ClojureScript's, when adding lots of key-value pairs (using transients): https://github.com/mfikes/persistent-objc-cljs Interestingly, they both run at nearly the same speed on an iOS device. But, when running on a Mac, the ClojureScript is currently about a factor of 7 times faster than the Objective-C. -- 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 --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [ANN] Arcadia, the integration of Clojure and Unity3D
Thanks, Tims. I'll try it out later this week and post some feedback of my experiences here! On Friday, October 17, 2014 9:10:29 PM UTC+2, tims wrote: Ramsey Nasser and I are excited to announce the alpha release of Arcadia, the integration of Clojure 1.7 into the Unity3D http://unity3d.com/ game engine and development platform. Based on Clojure's CLR branch https://github.com/clojure/clojure-clr, Arcadia compiles to optimized bytecode, with performance suitable for general game development. It includes a networked REPL that can be targeted by arbitrary editors, and provides functionality for fast, bidirectional conversion https://github.com/arcadia-unity/Arcadia/wiki/arcadia.hydrate between Unity objects and persistent Clojure data. It has confirmed export for Windows, Linux, and OSX, and aspires to export for iOS, Android, PlayStation, Xbox, and the web. Arcadia lives at https://github.com/arcadia-unity/Arcadia. For now, the best way to get started is by cloning the repo. A brief screencast on getting set up is here https://www.youtube.com/watch?v=KLq9b9lDmkc. Arcadia's blog is here http://arcadia-unity.tumblr.com/post/100257212548/arcadia-0-1a-launched. The mailing list is here https://groups.google.com/forum/#!forum/arcadia-unity. Unity3D can be obtained (for free!) at http://unity3d.com/. Our StrangeLoop presentation on Arcadia (then known as Clojure-Unity) is here https://www.youtube.com/watch?v=tJr_TD1BtF0.. Acknowledgements --- We're very grateful to the many people who helped with this project. We owe special thanks to our studiomates Kovas Boguta and David Nolen, and honorary studiomates Brandon Bloom and David Lansdowne, for their invaluable advice and support. We're especially fortunate to have attracted the attention of Joseph Parker, who has been building amazing things with Arcadia since it was a sloppy hack hidden on Github. We owe the name to the generous and urbane Zach Tellman, without whom this project would probably be called Clunity. Super special thanks to David Miller and the Clojure-CLR community. David has maintained a fully-loaded port of Clojure to the CLR runtime for five years. His amazing work and ongoing support made Arcadia possible. We're humbled by the astounding quality of a Clojure implementation with relatively few users, and would be honored if integration with Unity brings it more attention. - Tims Gardner -- 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 --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[OT] Video showing the Symbolics Lisp Machine
I've heard great things about the Symbolics Lisp Machines which were used back in the 80's and early 90's. A friend sent me the link to a presentation with video showing Symbolics OpenGenera running virtualized, shown at the Boston Lisp Meeting in June 2012. Fascinating OS and technology! http://www.loper-os.org/?p=932 -- 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
Re: [OT] Video showing the Symbolics Lisp Machine
There might even be some old Symbolics folks following this list, as I can imagine. This might bring up some good memories of better times for Lisp. - Raju -- 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
[OT] Khan Academy's computer science platform and Bret Victor's response
Bret Victor has been mentioned before on this list, here's another interesting article he wrote: http://worrydream.com/LearnableProgramming/ Here's a trick question: How do we get people to understand programming? Khan Academy recently launched an online environment for learning to program. It offers a set of tutorials based on the JavaScript and Processing languages, and features a live coding environment, where the program's output updates as the programmer types. Because my work was cited as an inspiration for the Khan system, I felt I should respond with two thoughts about learning Bret responds to John Resig's blog post Redefining the Introduction to Computer Science http://ejohn.org/blog/introducing-khan-cs/ Enjoy, Raju -- 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
Re: clojurescript: var names with - and _ are rendered to the same internal name (?)
Identifiers in JavaScript cannot contain a hyphen/minus character: https://developer.mozilla.org/en-US/docs/JavaScript/Guide/Values,_variables,_and_literals A JavaScript identifier must start with a letter, underscore (_), or dollar sign ($); subsequent characters can also be digits (0-9). Because JavaScript is case sensitive, letters include the characters A through Z (uppercase) and the characters a through z (lowercase). Starting with JavaScript 1.5, you can use ISO 8859-1 or Unicode letters such as å and ü in identifiers. You can also use the \u Unicode escape sequences as characters in identifiers. ClojureScript maps all hyphens in identifiers to underscores. This has been reported as a bug for protocols before: http://dev.clojure.org/jira/browse/CLJS-336 - Raju -- 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
Re: Much longer build time for Clojure on HDD vs. SSD (4 min vs 30s)
Thanks for all your answers. Makes me feel even better about the money I spent for my SSD. - Raju -- 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
Re: Much longer build time for Clojure on HDD vs. SSD (4 min vs 30s)
I'm a bit concerned that it's a hard disk problem, but I've checked the disk, tested other build processes using Ant, and don't see a similar effect. -- Raju -- 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
Much longer build time for Clojure on HDD vs. SSD (4 min vs 30s)
I've checked out the Clojure source code, and build the JAR using the Ant command. I'm seeing a strange effect, where the compile time on my normal hard disk takes almost 4 min (with most the time being spent in the compile-clojure task, and doing the same build process on my SSD taking 30-35s. I've never seen any similar behavior on my machine, normally build processes take 10% more when they run on the HDD vs. the SSD. Has anyone else experienced the same effect? How long does it take to run the ant build on your machines? Thanks, Raju -- 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
Re: Much longer build time for Clojure on HDD vs. SSD (4 min vs 30s)
Thanks a lot for your answers. That explains the behavior I'm seeing. - Raju -- 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
Re: Clojure Sticker
+1 -- 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
Re: clojure/java.jdbc: MySQL problem NoRouteToHostException Cannot assign requested address
Thanks, Sean, here's simplified test which shows the behavior:
Project dependencies:
:dependencies [[org.clojure/clojure 1.3.0]
[org.clojure/java.jdbc 0.2.2]
[mysql/mysql-connector-java 5.1.6]
Code:
(ns jdbc-test.core
(:require [clojure.java.jdbc :as sql])
(:import (java.text SimpleDateFormat)
(java.util Date)))
;; MySQL connection configuration
(def mysql-db
{:classname com.mysql.jdbc.Driver
:subprotocol mysql
:user root
:password root
:subname //localhost/clojurejdbc})
;; Table definition
(defn add-row-to-table
[label datetime]
(sql/with-connection mysql-db
(sql/insert-records :inserttest
{:id 0 :label label :created datetime})))
(defn generate-entries
[no]
(let [date-formatter (SimpleDateFormat. -MM-dd HH:mm:ss)]
(loop [counter 1
datetime (.format date-formatter (Date.))]
(if (= 0 (mod counter 1000))
(println (str counter rows added)))
(add-row-to-table (str Line # counter) datetime)
(if ( counter no)
(recur (inc counter) datetime)
The MySQL database and table definition:
CREATE DATABASE clojurejdbc;
USE clojurejdbc;
CREATE TABLE inserttest (
id INT NOT NULL AUTO_INCREMENT,
PRIMARY KEY (id),
label CHAR(255),
created DATETIME
);
I call the function generate-entries like this:
(generate-entries 100)
On my machine, the program stops after 34000+ rows have been added to the table:
...
32000 rows added
33000 rows added
34000 rows added
NoRouteToHostException Cannot assign requested address
java.net.PlainSocketImpl.socketConnect (PlainSocketImpl.java:-2)
The problem is probably the high number of connections kept open to
the localhost port, but that's just a guess:
http://stackoverflow.com/questions/1572215/how-to-avoid-a-noroutetohostexception
netstat -a shows a lot of TIME_WAIT entries
tcp0 0 localhost:mysql *:* LISTEN
tcp0 0 localhost:mysql localhost:46850 TIME_WAIT
tcp0 0 localhost:mysql localhost:46737 TIME_WAIT
tcp0 0 localhost:mysql localhost:46340 TIME_WAIT
(long list continued)
So this is not Clojure/JDBC specific, but a general problem with Java
and MySQL executing many queries to localhost. I'll investigate more
later.
Thanks,
Raju
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Re: clojure/java.jdbc: MySQL problem NoRouteToHostException Cannot assign requested address
Ok, I found the problem. It's not related to the Clojure JDBC API, but to the number of ports opened on localhost in a very short period of time. Linux has a TIME_WAIT configuration for connections opened, and default TIME_WAIT period is set to 60s. The maximum number of open connections is limited on a system, and if within a minute to many connections are made to a machine, the TIME_WAIT setting can block any new connections to the system. I could work around this problem by setting net.ipv4.tcp_tw_recycle=1 in /etc/sysctl.conf, but that setting might cause TCP problems as I've read. With that setting, inserting 100.000 items into the table just ran through without any problems/exceptions. Here's a blog post describing some performance tuning settings for Ubuntu, for anyone running into a similar problem: http://samiux.blogspot.de/2011/04/howto-performance-tuning-on-ubuntu.html Or just use c3p0 with clojure.java.jdbc. - Raju -- 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
clojure/java.jdbc: MySQL problem NoRouteToHostException Cannot assign requested address
Hi all, I'm running into a problem with the clojure/java.jdbc wrapper. In my program, I'm reading out a large text file and inserting around 24000 items into one table. After around 18000 items I get the following error message: NoRouteToHostException Cannot assign requested address java.net.PlainSocketImpl.socketConnect (PlainSocketImpl.java:-2) When I use c3p0 for connection pooling, I don't see the exception. http://clojure.github.com/java.jdbc/doc/clojure/java/jdbc/ConnectionPooling.html Seems to be a problem with socket connections failing to localhost, where both the client and MySQL server are running. Has anyone else experienced the same problem in the past? OS: Mint Linux 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:56:25 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux MySQL: 5.1.63-0ubuntu0.11.10.1 MySQL connector JAR: 5.1.6 Clojure: 1.3.0 Java: java version 1.6.0_31 Java(TM) SE Runtime Environment (build 1.6.0_31-b04) Thanks, Raju -- 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
Re: Can't start clojurescript browser-connected repl
Pierre-Henry, I think you are referring to the ClojureScript One tutorial? http://clojurescriptone.com/getting-started.html The commands listed there will only work with ClojureScript One, not with the ClojureScript examples in Git. Dimitry is trying to get the browser-connected REPL in the ClojureScript samples to work. https://github.com/clojure/clojurescript/tree/ad0e4af1b20fe829ea3a7feb1b7067250309b1cc/samples/repl - Raju -- 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
Re: Can't start clojurescript browser-connected repl
Dimitry, are you trying to evaluate the expressinon (+ 1 1) with the browser window closed? That's not going to work! With the browser-connected REPL, the browser JS engine is used to evaluate the JavaScript. If you don't use the browser-connected REPL, ClojureScript will use the embedded Rhino JS engine. - Raju -- 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
Re: Can't start clojurescript browser-connected repl
Ok, you mean if you open the HTML page from disk, the REPL is not working for you. I can confirm that. There are conflicting instructions in the test.cljs file, and in the README.md https://github.com/clojure/clojurescript/blob/master/samples/repl/src/repl/test.cljs ;; Open the file samples/repl/index.html https://github.com/clojure/clojurescript/blob/master/samples/repl/README.md Open http://localhost:9000/ in a browser. When this page is loaded it will connect to the REPL. Guess the commment in src/repl/test.cljs should be updated then. I'm not sure if the browser-connected REPL should work if the HTML page is loaded from disk. I see a JavaScript error in the browser console, URI file:/robots.txt is invalid for field ppu Looks like a security problem to me. Maybe someone from the ClojureScript team knows more. - Raju -- 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
Re: How do I set jvm options for a lein repl
Check the sample project.clj on Github: https://github.com/technomancy/leiningen/blob/master/sample.project.clj There's an entry for JVM options: ;; You can set JVM-level options here. :jvm-opts [-Xmx1g] In a quick test, that worked for me when lein repl was executed. - Raju -- 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
Re: How do I set jvm options for a lein repl
Oh, sorry, misunderstood your question. I found this blog post, maybe this still works, although it's from 2010: http://www.clojurepla.net/2010/05/increase-jvm-memory-when-using-swank.html -- 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
Re: How do I set jvm options for a lein repl
How do I set jvm options for a lein repl initiated independently of a project? In particular, I want the heap expansion that results from doing M-x clojure-jack-in in an emacs project.clj buffer with :jvm-opts [ -Xms4G -Xmx4G] in its defproject form. Larry is looking for a way to set that value across all projects, not just for one project. - Raju -- 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
Replacement function for delete-files-recursively in java-utils
I noticed that the function delete-file-recursively is present in clojure-contrib java-utils package, but it's missing in clojure.java.io. Is there any other function for deleting a directory recursively? http://richhickey.github.com/clojure-contrib/java-utils-api.html#clojure.contrib.java-utils/delete-file-recursively Thanks, Raju -- 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
Re: Replacement function for delete-files-recursively in java-utils
Right, that makes sense. Thanks for the clarification! - Raju -- 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
Best way to write an InputStream to disk
What is the best way to write an FilterInputStream or InputStream do
disk? I'm downloading a file using the clj-http library:
(:body (client/get
http://www.openlaszlo.org/pipermail/laszlo-dev/2012-May.txt.gz; {:as
:stream})
That returns the response body as a FilteredInputStream, which I need to save.
Thanks,
Raju
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Re: Best way to write an InputStream to disk
Thanks a lot, that worked for me. Raju -- 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
Re: clojurescript error
I've compiled your code without problems in the CLJS REPL, and embedded in a CLJS app I'm working on. Do you get the same bug when you evaluate your code snippet using the script/repljs? Raju -- 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
Re: Light Table - a new IDE concept
ArsTechnica mentions Light Table now http://arstechnica.com/business/news/2012/04/html5-bullets-innovative-clojurescript-ide-css-filter-effects-and-more.ars -- 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
Re: [ANN] cld 0.1.0 - Clojure Language Detection
Tested with Korean and German, and works great!
user (cld.core/detect 한국 음식중에 김치가 제일 맛있어요.)
[ko {ko 0.9998}]
cld.core= (cld.core/detect In München steht ein Hofbräuhaus.)
[de {de 0.972552285171}]
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Best definition of ClojureScript in one sentence
I'm working on a ClojureScript tutorial which will be published in a German web/programming magazine next month. We had a discussion on how ClojureScript could be best described. Is it a a) a language or a scripting language I'd clearly say language here. b) dialect of Clojure (targeting the JavaScript platform) c) JavaScript cross-compiler for Clojure d) other ideas??? Something like ClojureScript is a dialect of Clojure, which provides a cross-compiler for the JavaScript platform, while taking advantage of the powerful syntax of the Clojure language. - but I don't like that sentence. Quotes: ClojureScript is a dialect of Clojure that targets JavaScript as a deployment platform. ClojureScript allows to write code using the Clojure language and compile it to Javascript. ClojureScript is a new compiler for Clojure that targets JavaScript. I'd be thankful for input/comments. - Raju -- 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
Re: Best definition of ClojureScript in one sentence
Thanks, Dan, and a good point you are making. Actually I have that information in the same paragraph, why it it is important. The publishing company was discussing if ClojureScript is a language, a scripting language, a compiler, etc. They had a tutorial on CoffeeScript in the last edition, and CoffeeScript uses CoffeeScript is a little language that compiles into JavaScript. I'm looking for the best equivalent of that sentence for ClojureScript. Best, Raju 2012/2/27 Daniel Barlow d...@telent.net: On Mon, Feb 27, 2012 at 10:45 AM, Raju Bitter rajubit...@googlemail.com wrote: Quotes: ClojureScript is a dialect of Clojure that targets JavaScript as a deployment platform. ClojureScript allows to write code using the Clojure language and compile it to Javascript. ClojureScript is a new compiler for Clojure that targets JavaScript. All of these are (AFAIK anyway) entirely true and there's not much to choose between them. The ClojureScript compiler compiles the ClojureScript language (a dialect of Clojure) into Javascript. This may not be exactly the input you're looking for, but IMO the key message you probably want to get across is why is this important?. It's important because it allows one to create rich web user interfaces by writing Clojure to be executed client-side in the user's web browser, and you've left that entirely implicit. Focus on the benefits, not on the technology. -dan -- d...@telent.net http://ww.telent.net -- 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 -- 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
Re: Best definition of ClojureScript in one sentence
How about ClojureScript is a little language that compiles into JavaScript? ;) Well, ClojureScript is not little the way that CoffeeScript is - ClojureScript comes with cljs.core. Exactly, ClojureScript has it's own semantics instead of just being syntactic sugar. -- 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
Re: Bret Victor - Inventing on Principle
Didn't have the time to watch thevideo yesterday, and just watched it. Visualizing code in such a way is amazing, could be extremely useful when teaching how to program. I think the browser-connected REPL in ClojureScript is already a good step into the right direction, since it makes testing changes to the code for visual effects A LOT easier. When I did a bit of Flex development back in 2008 the application took 6 minutes to compile, which meant a huge waste of time trying to improve UI effects. I've heard of people who had compile times of up to 12-15 minutes for their Flex apps. Imagine how much time you waste with such a workflow (although that's more the case for very large enterpise apps, and not a casual game). Thanks again for the link! - Raju -- 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
Re: Bret Victor - Inventing on Principle
Thanks for posting the link. I've been following Bret Victor's blog and the stuff he has been doing for some time. Bret has built some very impressive UIs using OpenLaszlo, and he is a fan of the technology and the expressiveness of the LZX language for building UIs. OpenLaszlo was created by bunch of smart folks and Lispers, including Oliver Steele (worked for Apple on Dylan), Max Carlson, Tucker Withington (worked for Symbolics and Harlequin, implemented the GC for Dylan when Apple hired Harlequin to work on the language), and Henry Minsky (Marvin Minsky's son). http://osteele.com/ http://pt.withy.org/ Here's an old gestural zoom/pan demo Bret built with OpenLaszlo: http://worrydream.com/GesturalZoomAndPan/ OpenLaszlo's LZX language uses a declarative approach to building UIs and highly interactive applications (check this video of the Laszlo Dashboard, which was created in 2002/2003 http://vimeo.com/14206607). LZX is a mixture of XML tags + JavaScript, which initially was compiled into SWF bytecode. In 2007 Laszlo added cross-compilation to JavaScript (DHTML runtime) to the platform, and in 2009 cross-compilation to ActionScript 3 (which is then compiled into SWF using the Flex SDK). Here's a video of the LzPix application, the first OpenLaszlo app to cross-compile to JavaScript http://vimeo.com/32853986 My technology dream-team for client development would be ClojureScript combined with OpenLaszlo (has a powerful view kernel with interesting stuff like constraints, datapath mapping using xpath, simple yet powerful animation APIs). Instead of using XML + JavaScript, I'd prefer to use a more Clojure/Lisp like syntax to build UIs with OpenLaszlo in combination with ClojureScript. There's a slight chance that we can get the OpenLaszlo Lisp folks interested in integrating OpenLaszlo with ClojureScript (they are all working at Nest Labs now), and I'm sure that Bret Victor would love the combination as a tool for building some awesome prototypes. - Raju -- 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
ClojureScript One: System requirements, Java and Leiningen version
Looking at the project website, there doesn't seem to be any information on the required Java or Leiningen version for ClojureScript One. Here's what I found on the project pages for the required software: Clojure.org / Java 1.5 Shouldn't that be Java 6? Does Clojure 1.3 still work with Java 1.5? I remember that I read that ClojureScript 1.3 requires Java6. http://clojure.org/getting_started Java 1.5 or greater is required. ClojureScript Haven't found a Java version listed as requirement. Since it uses Clojure 1.3, I guess the requirement would be Java 6+. Leiningen I'm using Leiningen version 1.7.0, and never ran into problems on either OS X (10.5.8), Ubuntu 11.10 or Windows 7. And here are the Java version I've successfully tested with ClojureScript One so far: Ubuntu 11.10 (64bit) OpenJDK Runtime Environment (IcedTea6 1.11pre) (6b23~pre11-0ubuntu1.11.10.1) Java(TM) SE Runtime Environment (build 1.6.0_30-b12) OpenJDK Runtime Environment (IcedTea7 2.0) (7~b147-2.0-0ubuntu0.11.10.1) OS X 10.5.8 Java(TM) SE Runtime Environment (build 1.6.0_26-b03-384-9M3425) Windows 7 Java(TM) SE Runtime Environment (build 1.7.0_02-b13) Based on my tests it means, ClojureScript One works with * Linux (only tested Ubuntu), OS X and Windows * Leiningen versions: 1.6 and 1.7 (haven't * Java versions OpenJDK 6 and 7, Oracle Java 6 and 7 Maybe you'd want to add some information regarding supported Java / Leiningen versions to the getting started section. - Raju -- 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
Re: ClojureScript One: System requirements, Java and Leiningen version
One addition: The browser-connected REPL does not work in IE9, and exiting the Clojure/ClojureScript REPL usind Ctrl-d keeps the Jetty server running in memory. - Raju -- 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
Re: ClojureScript One: System requirements, Java and Leiningen version
Thanks for the clarification, Chas. -- 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
Re: [ANN] Clojure Android mailing list
Good idea, Daniel. I joined the group. - Raju -- 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
Browser-connected REPL works with Android 4.0
Here's a screenshot of the browser-connected REPL connected to an instance of ClojureScript One running inside the Android 4.0 emulator. That's going to be a killer feature for developing Android HTML5 apps with ClojureScript! http://www.flickr.com/photos/semanticmemories/6923250197/in/photostream - Raju -- 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
Re: Browser-connected REPL works with Android 4.0
If someone has an Android 4 tablet, it would be good to test if that works with a real device as well. - Raju -- 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
Re: clojure thesis opportunity
This might interest you, it's not Clojure, but Lisp. Do you know the online game Vendetta? They have used Lisp extensively for non-player character behavior, and have a REPL integrated into the game. http://www.vendetta-online.com Vendetta Online has a Lisp environment (using SBCL) which controls much of its NPC behavior and will soon be in charge of generating player and NPC missions. Partly in order to get around some thread-safety issues, and partly for convenience we built an REPL into a secret chat channel. (it only responds to developer accounts) http://www.a1k0n.net/2005/11/04/lisp-repl-vendetta-online.html Later they started using Erlang in combination with Lisp since they had some problems with concurrency and garbage collection in SBCL. http://www.vendetta-online.com/x/msgboard/1/15560#196333 We chose common lisp primarily for its rapid-prototyping capabilities. In CL, it is very easy to define 'mini-languages', which is what I've done for missions, objectives, senses, reflexes, state-machines, business-models and more. All the code written in these special languages will remain untouched, and be auto-translated (by CL code) into erlang. As I develop new missions, reflexes, etc, I will continue to use the mini-languages; the processes they describe will simply be running on a distributed, fault-tolerant, erlang-based platform instead of the simplistic single-threaded one they have been running on. We had hoped for the simplistic system to continue to serve for a while yet, so that we could focus on player-visible features, but we always knew it would need to be made more scalable at some point. If you know of a 'more mainstream (/debugged/tested/reliable)' language/runtime than erlang that provides: 1) *very* light-weight processes 2) distributed, message-passing concurrency; 3) unification/pattern-matching 4) a soft-real-time, distributed, disk and/or ram-based relational/object database usable with or without transactions (just a few of mnesia's features), 5) facilities for zero-downtime code-upgrades, and other high-availability features 6) a powerful enough set of semantics (eg. closures) to make auto-translation from lisp less painful than a complete rewrite - Raju -- 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
Re: ClojureScript One - Getting Started with ClojureScript
2012/2/7 Tom Chappell tomchapp...@gmail.com: This problem is caused by the underlying Java library that is used to launch the browser, which, under linux, only launches the proper default browser if gnome is installed. Install enough gnome and it will start to work. -Tom Thanks, Tom. That was the cause, and the library missing was libgnome2-0. Installing that lib solved the problem on Ubuntu 11.10, and the default browser will be used. - Raju -- 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
Re: ClojureScript One - Getting Started with ClojureScript
ClojureScript One is fantastic! Great work, thanks! I just have one question, am running it on Ubuntu Linux. How can I set the browser when I launch inferior/lisp script/cljs-repl? On Linux, a Java based browser window is opened, and the page is not rendered correctly? Thanks again, - Raju -- 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
Re: ClojureScript One - Getting Started with ClojureScript
clojure.java.browse/open-url-in-swing is called a fallback method, and then the ClojureScript app is not rendered correctly. http://bit.ly/yPagHl I'll see if I can create a workaround for that. - Raju -- 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
Re: ClojureScript One - Getting Started with ClojureScript
Thanks for your response, Brenton. 2012/1/25 Brenton bashw...@gmail.com: With the recent update, we no longer have a script/cljs-repl. You would now use: lein repl (go) That works on OS X. On Ubuntu 11.04 - with a clean system (no Leiningen / Clojure installed), I do 1) Install Leiningen, lein works lein -v raju@titan:~/test$ lein -v Leiningen 1.6.2 on Java 1.6.0_30 Java HotSpot(TM) 64-Bit Server VM 2) Checkout ClojureScript One raju@titan:~/test$ git clone https://github.com/brentonashworth/one.git Cloning into one... remote: Counting objects: 1574, done. remote: Compressing objects: 100% (658/658), done. remote: Total 1574 (delta 738), reused 1532 (delta 696) Receiving objects: 100% (1574/1574), 940.66 KiB | 224 KiB/s, done. Resolving deltas: 100% (738/738), done. raju@titan:~/test$ cd one raju@titan:~/test/one$ lein bootstrap Copying 36 files to /home/raju/test/one/lib Copying 10 files to /home/raju/test/one/lib/dev Setting up dependency for [https://github.com/clojure/clojurescript.git 886d8dc81812962d30a741d6d05ce9d90975160f] Running git checkout 886d8dc81812962d30a741d6d05ce9d90975160f in .lein-git-deps/clojurescript Setting up dependency for [https://github.com/levand/domina.git 8933b2d12c44832c9bfaecf457a1bc5db251a774] Running git checkout 8933b2d12c44832c9bfaecf457a1bc5db251a774 in .lein-git-deps/domina 3) Try to launch the repl, but that fails. Seems to be a classpath issue, looks like Leiningen is not finding the Clojure JAR file. Any idea what this might be? raju@titan:~/test/one$ lein repl Exception in thread main java.lang.RuntimeException: java.lang.NoSuchMethodError: clojure.lang.KeywordLookupSite.init(ILclojure/lang/Keyword;)V at clojure.lang.Util.runtimeException(Util.java:165) at clojure.lang.Compiler.eval(Compiler.java:6476) at clojure.lang.Compiler.eval(Compiler.java:6431) at clojure.core$eval.invoke(core.clj:2795) at clojure.main$eval_opt.invoke(main.clj:296) at clojure.main$initialize.invoke(main.clj:315) at clojure.main$script_opt.invoke(main.clj:339) at clojure.main$main.doInvoke(main.clj:426) at clojure.lang.RestFn.invoke(RestFn.java:457) at clojure.lang.Var.invoke(Var.java:413) at clojure.lang.AFn.applyToHelper(AFn.java:172) at clojure.lang.Var.applyTo(Var.java:518) at clojure.main.main(main.java:37) Caused by: java.lang.NoSuchMethodError: clojure.lang.KeywordLookupSite.init(ILclojure/lang/Keyword;)V 4) Confirm that lein works correctly raju@titan:~/test$ lein new hello-world Created new project in: /home/raju/test/hello-world Look over project.clj and start coding in hello_world/core.clj raju@titan:~/test$ cd hello-world/ raju@titan:~/test/hello-world$ lein deps Copying 1 file to /home/raju/test/hello-world/lib raju@titan:~/test/hello-world$ lein repl REPL started; server listening on localhost port 53851 user= Has anyone else experienced similar problems on Ubuntu with ClojureScript One? - Raju -- 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
Re: ClojureScript One - Getting Started with ClojureScript
3) Try to launch the repl, but that fails. Seems to be a classpath issue, looks like Leiningen is not finding the Clojure JAR file. Any idea what this might be? raju@titan:~/test/one$ lein repl Exception in thread main java.lang.RuntimeException: java.lang.NoSuchMethodError: clojure.lang.KeywordLookupSite.init(ILclojure/lang/Keyword;)V That's strange, when I delete clojure-1.3.0.jar in one/lib/dev, I can launch the repl and (go): raju@titan:~/test/one$ rm lib/dev/clojure-1.3.0.jar raju@titan:~/test/one$ lein repl REPL started; server listening on localhost port 38304 Type (go) to launch the development server and setup a browser-connected REPL. Type (dev-server) to launch only the development server. one.sample.repl= (go) 2012-01-26 01:20:39.364:INFO::Logging to STDERR via org.mortbay.log.StdErrLog Type: :cljs/quit to quit 2012-01-26 01:20:39.365:INFO::jetty-6.1.25 2012-01-26 01:20:39.374:INFO::Started SocketConnector@0.0.0.0:8080 ClojureScript:cljs.user -- 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
Re: ClojureScript One - Getting Started with ClojureScript
I don't have a $CLASSPATH set, and no ~/.clojure folder, so there shouldn't be any conflicting Clojure JAR file on the classpath. - Raju -- 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
Re: ClojureScript One - Getting Started with ClojureScript
Thanks for your help. Should have looked into the Leiningen issues myself. - Raju -- 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
Re: Clojure for Android
There are 3 approaches you could take for using ClojureScript to develop an Android app: 1) Use ClojureScript in combination with PhoneGap: the generated JavaScript will then be run inside a webview component (headless browser). 2) Build a normal Android app with a Java/Android based UI, accessing a ClojureScript API. In that case the UI will be fully rendered using Java (better performance), but you could still use a ClojureScript library which you already have. 3) Use ClojureScript to build a WAC/W3C widget (an HTML/JavaScript page with an XML descriptor file). Opera provides a WAC widget runtime Android app, and a number of operators and device manufacturers have added support for WAC/W3C widgets directly into their phones. If you access APIs for generating apps (e.g. https://build.phonegap.com/), you could even package an Android/iOS/... app without the need to install a mobile app SDK on your machine. I've personally used approach 1) and 2), and if you are interested we could start working on a proof-of-concept app using both approaches this weekend. Here's a Github repository I'll be using to share code with you: https://github.com/raju-bitter/clojurescript-android-phonegap Some links: W3C Widget http://www.w3.org/TR/widgets/ Wholesale Application Community http://www.wacapps.net/ Opera releases WAC-ready widget runtime for Android http://www.opera.com/press/releases/2010/12/22/ PhoneGap Build service: https://build.phonegap.com/ - Raju On Wed, Aug 17, 2011 at 12:41 PM, daly d...@axiom-developer.org wrote: I have written several android apps so I can help with some questions. Unfortunately I am completely swamped otherwise. If you make it a project on Github that would be useful. Tim Daly On Tue, 2011-08-16 at 22:33 -0700, Paul deGrandis wrote: I'd consider taking this. I've worked a little bit behind the scenes to get Clojure to run better for me personally on android. Recently, I've been working to get ClojureScript to work well for SL4A (Scripting Layer for Android). I wanted to try to get a native Clojure package working for SL4A, but given that the above works pretty well, I need some sort of real motivation to continue the work. Paul // OhPauleez http://www.pauldee.org/blog On Aug 16, 7:31 am, James Swift ja...@3dengineer.com wrote: http://dev.clojure.org/display/design/Android+Support Issues Needs a motivated owner This topic gets a regular mention but I thought it might be worth asking again if it's ever likely to get the 'motivated owner' ? Given that 'reach' was a primary reason for the development of ClojureScript shouldn't the reach of Android encourage someone to go for it? I only wish I was capable of doing it myself :) James. -- 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 -- 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
Re: Trouble embedding clojurescript in server application
I've experienced the same problem (long list of undeclared vars) on OS
X (10.6.8), with JDK version 1.6.0.26 and 1.6.0.22, when I tried to
call the cljs.closure/build function out of a Ring/Compojure web
application.
Then I tested on Ubuntu 11.04 in VirtualBox, just trying to compile a
*.cljs file out of the REPL, everything worked for me.
Java version on Ubuntu:
java version 1.6.0_26
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) Client VM (build 20.1-b02, mixed mode, sharing)
Here are the steps I followed:
1) Create a new project:
lein new cljstest
2) Added dependencies to project.clj
(defproject cljstest 1.0.0-SNAPSHOT
:description FIXME: write description
:dependencies [[org.clojure/clojure 1.3.0-beta2]
[cljs-compiler-jar 0.1.0-SNAPSHOT]
[goog-jar 1.0.0]])
3) Resolve dependencies: lein deps
4) Created a simple ClojureScript test file in src/test.cljs
(defn hello-world [msg]
(println msg))
(hello world)
5) Repl launched: lein repl
6) In the REPL, did
user= (use 'cljs.closure)
nil
user= (build src/test.cljs {:output-dir ./, :output-to
./test-compiled.js, :optimizations :simple})
nil
user=
It seems the problem is not connected to the Java/JDK version in my
case, since downgrading to 1.6.0.22 didn't solve the problem.
I'll do some more testing and keep you updated on my results.
Raju
On Wed, Aug 17, 2011 at 10:05 PM, kjeldahl
mariusauto-googlegro...@kjeldahl.net wrote:
I have another data point to add to my testing regarding this problem.
Defining a pretty minimal little clojure test program:
(ns cljstest.main
(:require [cljs.closure :as closure]))
(defn -main [ m]
(closure/build src/mycljs/hello.cljs {:optimizations :simple
:output-dir out/
:output-to out/
bootstrap.js})
(println Hello world.))
Running this with lein run fails as I've described earlier in this
thread. For the hell of it, I removed all the compiled code in the
classes dir, and simply started a java repl in the same dir, with
the same classpath leiningen would use EXCEPT I removed the classes
part, and then inside the repl run:
(use 'cljstest.main)
(-main)
Then everything works just fine. It definitively looks like something
is wonky in the clojurescript compiler that requires it to run in some
kind of repl environment (or depends on some kind of sideeffect of the
repl environment).
Thanks,
Marius K.
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Re: Trouble embedding clojurescript in server application
Found the problem: When I have a :main configuration entry in my
project.clj, I get the error messages. Here's what my project.clj
looks like:
(defproject cljsconsole 1.0.0-SNAPSHOT
:description Web Console for ClojureScript compilation
:repositories {clojure-releases
http://build.clojure.org/releases}
:dependencies [[org.clojure/clojure 1.3.0-beta2]
[org.clojure/clojure-contrib 1.2.0]
[cljs-compiler-jar 0.1.0-SNAPSHOT]
[goog-jar 1.0.0]
[compojure 0.6.4]
[enlive 1.0.0-SNAPSHOT]]
:dev-dependencies [[lein-ring 0.4.5]]
:ring {:handler cljsconsole.core/app}
:main cljsconsole.core/dev)
When I remove it, launch the REPL using lein repl, and then use to
the REPL to launch Compojure/Ring, everything works fine:
ringo:clojurescript-webconsole raju$ lein repl
REPL started; server listening on localhost port 23826
user= (use 'cljsconsole.core)
nil
user= (dev)
2011-08-31 03:05:33.553:INFO::Logging to STDERR via org.mortbay.log.StdErrLog
2011-08-31 03:05:33.554:INFO::jetty-6.1.26
2011-08-31 03:05:33.571:INFO::Started SocketConnector@0.0.0.0:8080
#Server Server@61556234
user= Aug 31, 2011 3:05:36 AM
clojure.contrib.logging$eval1129$impl_write_BANG___1132 invoke
INFO: Building app for URI /test.cljs
Aug 31, 2011 3:05:36 AM
clojure.contrib.logging$eval1129$impl_write_BANG___1132 invoke
INFO: Processing ClojureScript file: resources/public/test.cljs
Aug 31, 2011 3:05:36 AM
clojure.contrib.logging$eval1129$impl_write_BANG___1132 invoke
INFO: Target folder: resources/public/_build
Aug 31, 2011 3:05:36 AM
clojure.contrib.logging$eval1129$impl_write_BANG___1132 invoke
INFO: Target file: test1314752736109.js
Aug 31, 2011 3:05:36 AM
clojure.contrib.logging$eval1129$impl_write_BANG___1132 invoke
INFO: Using opts: {:output-dir resources/public/_build, :output-to
resources/public/_build/test1314752736109.js, :output-one-file
:true, :optimizations :simple}
I'm glad that it's working for me, but I don't understand what's
exactly going on if :main is set.
- Raju
On Wed, Aug 31, 2011 at 2:35 AM, Raju Bitter rajubit...@googlemail.com wrote:
I've experienced the same problem (long list of undeclared vars) on OS
X (10.6.8), with JDK version 1.6.0.26 and 1.6.0.22, when I tried to
call the cljs.closure/build function out of a Ring/Compojure web
application.
Then I tested on Ubuntu 11.04 in VirtualBox, just trying to compile a
*.cljs file out of the REPL, everything worked for me.
Java version on Ubuntu:
java version 1.6.0_26
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) Client VM (build 20.1-b02, mixed mode, sharing)
Here are the steps I followed:
1) Create a new project:
lein new cljstest
2) Added dependencies to project.clj
(defproject cljstest 1.0.0-SNAPSHOT
:description FIXME: write description
:dependencies [[org.clojure/clojure 1.3.0-beta2]
[cljs-compiler-jar 0.1.0-SNAPSHOT]
[goog-jar 1.0.0]])
3) Resolve dependencies: lein deps
4) Created a simple ClojureScript test file in src/test.cljs
(defn hello-world [msg]
(println msg))
(hello world)
5) Repl launched: lein repl
6) In the REPL, did
user= (use 'cljs.closure)
nil
user= (build src/test.cljs {:output-dir ./, :output-to
./test-compiled.js, :optimizations :simple})
nil
user=
It seems the problem is not connected to the Java/JDK version in my
case, since downgrading to 1.6.0.22 didn't solve the problem.
I'll do some more testing and keep you updated on my results.
Raju
On Wed, Aug 17, 2011 at 10:05 PM, kjeldahl
mariusauto-googlegro...@kjeldahl.net wrote:
I have another data point to add to my testing regarding this problem.
Defining a pretty minimal little clojure test program:
(ns cljstest.main
(:require [cljs.closure :as closure]))
(defn -main [ m]
(closure/build src/mycljs/hello.cljs {:optimizations :simple
:output-dir out/
:output-to out/
bootstrap.js})
(println Hello world.))
Running this with lein run fails as I've described earlier in this
thread. For the hell of it, I removed all the compiled code in the
classes dir, and simply started a java repl in the same dir, with
the same classpath leiningen would use EXCEPT I removed the classes
part, and then inside the repl run:
(use 'cljstest.main)
(-main)
Then everything works just fine. It definitively looks like something
is wonky in the clojurescript compiler that requires it to run in some
kind of repl environment (or depends on some kind of sideeffect of the
repl environment).
Thanks,
Marius K.
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Re: Example of a real-world ClojureScript web application
Thanks for your response, Filip. That means for such a new technology the documentation is very good already. And the community can jump in and improve it until the first stable release. Good to know! Raju On Sat, Aug 13, 2011 at 9:16 AM, Filip de Waard f...@vix.io wrote: On Wed, Aug 10, 2011 at 11:42 PM, Raju Bitter rajubit...@googlemail.com wrote: Thanks for sharing the code with us, Filip. I have one additional question: Which parts of ClojureScript were documented well enough for you, and where was it difficult to find enough information on how to implemented certain features? There is always some room for improvement, but in my experience the documentation is sufficient. If I had to come up with a suggestion it would be an overview of ClojureScript specific functions like (js-clj) and (js-obj)) and implementation details. I'm happy to see the ClojureScript ecosystem growing this fast and to see the increasing amount of information and tips from people on this list, blogs, et cetera. With a new project like ClojureScript there is always a certain amount of polish that still needs to be applied, but I can't say that a lack of documentation has hindered my productivity in any way. -fmw -- 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 -- 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
Re: Example of a real-world ClojureScript web application
Thanks for sharing the code with us, Filip. I have one additional question: Which parts of ClojureScript were documented well enough for you, and where was it difficult to find enough information on how to implemented certain features? Raju On Aug 10, 11:22 pm, Scott Jaderholm jaderh...@gmail.com wrote: I haven't read the code yet but I have a few questions: Do you miss backbone.js? Are you going to use it with cljs? Have you shared any code between the frontend and backend? As in run the same functions on both sides. If so, are you duplicating the code in both .clj and .cljs or doing something else? How has the debugging/error notification experience been? Scott On Tue, Aug 9, 2011 at 8:53 PM, Filip de Waard f...@vix.io wrote: I'm working on Vix, which is a document repository and content management system written in Clojure with a CouchDB backend. After the announcement on July 23 I immediately got excited about ClojureScript and the Google Closure toolkit, so I dropped the existing Backbone.js and jQuery code and rewrote all client-side functionality in ClojureScript. Despite (or maybe because of) the fact that the functionality is still very minimal I wanted to share this code as an example of ClojureScript in the wild. Be warned that: - this is not perfect, clean example code written by a ClojureScript expert (in several places I've used hacks and shortcuts to make things work), but hopefully at least a starting point for others working on similar functionality, - you should read the installation instructions carefully (e.g. there is still a hardcoded path in src/vix/db.clj at the time of this writing, which I hope to correct in the near future), - I'm actively developing this application, so things will change and new features will be added frequently, - the application isn't done yet, although it has a working prototype. I'm concentrating on adding features that will allow users to manage feeds (currently blog is the default feed), add media files like images and to manage users. I had trouble getting unit testing to work properly for the ClojureScript part of the application, so I grudgingly wrote it using a non-TDD approach. Retrofitting unit tests into the ClojureScript part is a priority. The user interface is also lacking some bells and whistles that I had previously implemented in jQuery, but still have to rewrite using Google Closure. Eventually, I want to turn Vix into a commercial SaaS offering, with a focus on performance (e.g. Amazon CloudFront support), scalability and webshop functionality. The application itself, however, will be perpetually available as open source software, because I'm committed to sharing my code. Here is the GitHub page for Vix:https://github.com/fmw/vix This is not a launch post for Vix, because we're not ready for supporting typical end-users yet, but I hope that the code will be useful to other developers in the meantime. I'm also happy to receive any feedback (positive as well as negative) and answer questions. You can reply to this post, but if you prefer to contact me privately you can also find my contact information on Github (https://github.com/ fmw). Sincerely, F.M. (Filip) de Waard / fmw P.S. I'd like to thank the ClojureScript developers. There are surprisingly few glitches considering that the project has only just been released. The language is incredibly well designed and a pleasure to use. Thanks for making client-side development more enjoyable! -- 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 -- 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
