Search Results: "tmarble"

10 August 2016

Tom Marble: webica

webica I've just pushed the first version of my new Clojure wrapper for Selenium called webica. The reason I need webica is that I want to do automated browser testing for ClojureScript based web applications. Certainly NodeJS, PhantomJS, Nashorn and the like are useful... but these can't quite emulate the full browser experience. We want to test our ClojureScript web apps in browsers -- ideally via our favorite automated continuous integration tools.

My new approach with the webica library is to do full Java introspection in the spirit that amazonica does for the AWS API. In fact I wanted to take it a step further by actually generating Clojure source code via introspection that can be used by Codox to generate nice API docs (which you don't get with amazonica). That, alas, was a little trickier than expected due to pesky Quine-like problems :) . If you load the library on the REPL you can get a feeling for each namespace by calling the show-functions function. I realize this approach of aggressive introspection, playing fast and loose with types and application level dynamic dispatch are crazy antipatterns. In my defense I started out playing around to see "if I could do it". After seeing the result in the form of a shell script in Clojure -- imitating lmgtfy -- perhaps webica will actually be useful! I plan to talk about webica tonight at -- hope to see you there!

24 July 2016

Tom Marble: jai-gagne-le-tour-de-crosstown-2016

J'ai gagn le Tour de Crosstown 2016! Everyone knows that today the finish line for Le Tour de France was crossed on Les Champs- lys es in Paris... And if you haven't seen some of the videos I highly recommend checking out the onboard camera views and the landscapes! Quel beau pays I'm happy to let you know that today I won the Tour de Crosstown 2016 which is the cycling competition at Lifetime Crosstown inspired by and concurrent to Le Tour de France. There were about twenty cyclists competing to see who could earn the most points -- by attending cycling class bien s r. I earned the maillot jaune with 23 points and my next closest competitor had 16 points (with the peloton far behind). But that's just part of the story.

Tour de Crosstown 2016
For some time I've been coming to Life Time Fitness at Crosstown for yoga (in Josefina's class) and playing racquetball with my friend David. The cycling studio is right next to the racquetball courts and there's been a class on Saturday's at the same time we usually play. I told David that it looked like fun and he said, having tried it, that it is fun (and a big workout). In early June David got busy and then had an injury that has kept him off the court ever since. So one Saturday morning I decided to try cycling. I borrowed a heart rate monitor (but had no idea what it was for) and tried to bike along in my regular gym shorts, shoes and a t-shirt. Despite being a cycling newbie I was immediately captured by Alison's music and enthusiasm. She's dancing on her bike and you can't help but lock in the beat. Of course that's just after she tells you to dial up the resistance... and the sweat just pours out! I admit that workout hit me pretty hard, but I had to come back and try the 5:45 am Wednesday EDGE cycle class (gulp). Despite what sounds like a crazy impossible time to get out and on a bike it actually works out super well. This plan requires one to up-level one's organization and after the workout I can assure you that you're fully awake and charged for the day! Soon I invested in my own heart rate monitor. Then I realized it would work so much better if I had a metabolic assessment to tune my aerobic and anaerobic training zones. While I signed up for the assessment I decided to work with May as my personal trainer. In addition to helping me with my upper body (complementing the cycling) May is a nutritionist and has helped me dial in this critical facet of training. Even though I'm still working to tune my diet around my workouts, I've already learned a lot by using My Fitness Pal and, most importantly, I have a whole new attitude about food. Pour les curieux, la nutritioniste maison s'est absent e en France pendant le mois de juillet. Soon I would invest in bike shoes, jerseys and shorts and begin to push myself into the proper zones during workouts and fuel my body properly afterwords. All these changes have led to dramatic weight loss \o/ A few of you know that the past two years have involved a lot of personal hardship. Upon reflection I have come to appreciate that things in my life that I can actually control are a massive opportunity. I decided that fixing my exercise and nutrition were the opportunities I want to focus on. A note for for my Debian friends... I'm sorry to have missed you in Cape Town, but I hope to join you in Montr al next year. So when the Tour de Crosstown started in July I decided this was the time for me to get serious. I want to thank all the instructors for the great workouts (and for all the calories I've left on the bike): Alison, Kristine, Olivia, Tasha, and Caroline! The result of my lifestyle changes are hard to describe.. I feel an amazing amount of energy every day. The impact of prior back injury is now almost non-existent. And what range of motion I hadn't recovered from the previous summer's being "washing machined" by a 3 meter wave while body surfing at the beach in Hossegor is now fully working. Now I'm thinking it's time to treat myself to a new bike :) I'm looking at large touring frames and am currently thinking of the Surly Disc Trucker. In terms of bike shops I've had a good experience with One on One and Grand Performance has come highly recommended. If anyone has suggestions for bikes, bike features, or good shops please let me know! I would encourage everyone here in Minneapolis to join me as guest for a Wed morning 5:45am EDGE cycle class. I'm betting you'll have as much fun as a I do.. and I guarantee you will sweat! The challenge in waking up will pay off handsomely in making you energized for the whole day. Let's bike allons-y!

29 February 2016

Tom Marble: is-slfc-shooting-open-source-in-the-foot

Is SFLC Shooting Open Source in the Foot? The academic article by SFLC about ZFS is troubling and may unintentionally shoot free software licensing in the foot. When I was at Sun (as part of the team that released the Java Programming Language by starting the OpenJDK project) I often heard community concerns about the CDDL license. At the time the big complaint was about the "Choice of Venue" clause. I got involved because Sun had developed many essential Java libraries and distributed them under CDDL. The community requested a more permissive license and I was able to convince internal project leaders (and Sun's lawyers) to make a licensing change for a handful of these projects. And there was much rejoicing. Based on my experience in helping Java to become open source I came to appreciate the legal hacks on copyright which make open source possible. It's the free software license which uses copyright to enable sharing (vs. the default of disabling sharing).

Open Source Licenses
And so I have appreciated many of the writings and speeches from SFLC on the mechanisms of software freedom. I was particularly moved by the talks about the "Freedom Box" concept. That's why this SFLC post on ZFS sounds so off key: if open source works because of free software licenses it seems weird to weaken that foundation by prioritizing the "equity" (or intended spirit) of the license. Allow me to mention that as I do most of my computing these days on GNU/Linux I miss the super cool features of ZFS from Solaris. I did try an early version of btrfs and was quite disappointed (but that's another story). In this happy case the source code for ZFS is available, but what about the future, when we aren't so lucky and someone asserts in court that the "you know, the software license was really about the spirit of sharing and that means we are allowed to use it -- and not be held to the pesky details as written in the license". A lawyer I respect called this out: "Equity" has no place in US law. The point is that for lawyers software licenses work because they have clear, written rules to guarantee the spirit is upheld; but spirit doesn't work in front of a judge -- clear rules do. Free and open source software has made so much progress in all facets of life why on earth would we second guess the licensing tools that made it possible? And why would SFLC try to shift the spotlight (and in this case the legal burden) to "a good-faith belief that the conduct falls within the equity of the license". Especially given the earlier comment which clearly states "[the combination] is inconsistent with the literal meaning of GPLv2 section 2(b)."

The entire raison d' tre for open source software licenses was so that developers (and users) would have clarity and wouldn't have to ask permission to use the software!!! As stated elsewhere (and like I did with those Java libraries) the easy solution is to have the ZFS copyright holder (now Oracle) reclicense (or dual license) the code under a compatible license (permissive or copyleft). If OpenSolaris was still a thing I might understand some hesitancy, but why not liberate ZFS now? So we have to wonder what could possibly be motivating this odd "spirit of the license" position on the part of SFLC? Fortunately charities that enjoy non-profit status are required to make public filings of their income in something called a "Form 990". The latest SFLC 990 I could find shows SFLC getting 78% (or just over $5 million) from "non public support" (see page 14). A number with "two commas" would even be interesting to for-profit companies. Just whom is making these "donations" and what exactly do they get in return? Apparently I'm not the only one wondering about this question. On one hand it's important to know if SFLC as a non-profit is, indeed, acting in the public interest (as the IRS requires). Yet the even bigger issue here is would "asking for a consensus about the spirit" trump the written copyright license and set a scary precedent for open source software in general?

29 January 2013

Hideki Yamane: upstream and distro has a "same" goal

Tom Marble has a nice blog entry "Crowdsourcing Upstream Refactoring". It's interesting and I agree with most, but I want to say against one thing in "conclusion" in his presentation.

He said "upstreams and distros have different goals" but I don't think so. We distro and upstream has a same goal, "Deliver the value to users", but we distro have much criteria than upstream, like license, non-duplicate library, etc.

If we (distro and upstream) cannot share this view, then we would be failed, IMHO.

3 June 2011

Guillaume Mazoyer: Status report Jigsaw num. 1 for GSoC 2011

code.pngThe beginning of this Google Summer of Code has been busy and pretty cool. Not a lot of code was produced but I did learn a lot of things.

During this GSoC I will work on the next generation JDK. This means that I will (and I already have) compile the JDK. That s pretty awesome but it requires a lot of power. That s why Tom Marble created me an account on his 8 CPUs machine to help me.
Since I m probably going to sign some packages, I created a new GPG key with a 4096 RSA strength.
My old key was:

pub 1024D/F144A319 2008-10-18

And the new key is:

pub 4096R/EE2BBBC7 2011-05-03

I cross signed my keys using this great tutorial.

I read some documentation about Jigsaw and watched Tom s talk at DebConf 10.
I have spent a little more than a week to understand the current OpenJDK packaging to be able to rebuild it. I have learnt from where do the sources come from. The current packaging is a little hard to understand. There are sources that come from IcedTea, OpenJDK, and more.

After being able to rebuild the OpenJDK 6 package, I have downloaded the source of the OpenJDK 8 and Jigsaw. I used the Mercurial forest to get the sources.

For OpenJDK 8:
hg clone jdk8
cd jdk8 && sh

For Jigsaw:
hg clone jigsaw
cd jigsaw && sh

I have managed to build the sources of OpenJDK 8 and Jigsaw using the same steps:
cd jigsaw
. jigbuild
. jdk/make/
make sanity
make all

Jigsaw specific:
make modules-sanity
make modules

Each build took several minutes. But they were successful. Tom helped me a lot to build OpenJDK 8 and Jigsaw by giving me a solution. For example, after getting the Mercurial forest, there were still missing source files and the build failed. Tom told me that I needed to export a environement variable: ALLOW_DOWNLOADS=true.
After building Jigsaw, I was able to see that the version string is not legal in Debian and that is a real problem.
I have written some simple Hello World examples to compile and run with Jigsaw. To modularize a program, it needs to contain a files. This file includes the modules needed to run the program and the main class to run. For a classic hello world, the files looks like:

module test.hello @ 1
requires jdk.base @ 7-ea;
class test.hello.Main;

Tom gave me some packages to build: jtharness and jtreg. I succesfully built jtharness using CDBS and its Ant helper but I ll have to repackage it to use javahelper instead of CDBS. I still didn t try to build jtreg because it requires jtharness.

My next plan is to get jtharness and jtreg packaged with javahelper soon and understand what modules does what in Jigsaw. Understaning modules will help me to write some more complex examples. I hope to start working on Jigsaw a little more soon (when I my internship will end [next week]).