#ruby on 2011-12-13 — irc logs at freenode.irclog.whitequark.org

2011-11-28 00:09 Topic for #ruby is now Ruby programming language || ruby-lang.org || RUBY SUMMER OF CODE! rubysoc.org/ || Paste >3 lines of text in http://pastie.org || Para a nossa audiencia em portugues http://ruby-br.org/

00:00 ognevsky [ognevsky!~ognevsky@37-165-94-178.pool.ukrtel.net] has joined #ruby

00:00 <maz3> incluye: what do you think?

00:00 <davidcelis> you need an outer case statement

00:00 <Harzilein> davidcelis: wouldn't a gist api that allows for importing from a url (like the raw view of the pastebin) be good enough? then you could decide yourself to have a clone of it on your gist.

00:00 <maz3> thanks

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00:00 <incluye> heh, "recomened"

00:01 <maz3> yea I know….

00:01 <maz3> i was going to change it after the program is working

00:01 <incluye> I'm not here to criticize, just to chuckle gently

00:01 <maz3> …. *sigh*

00:01 <davidcelis> maz3: You need something more like... case choice; when "A" ...; when "B" ...; when "C"... ;

00:01 <davidcelis> then inner case statements for the hours

00:01 <davidcelis> the way you have it now, you are checking case on undefined variables called a b and c

00:02 <maz3> so it has to be when in when?

00:03 <davidcelis> i would suggest reading the documentation on ruby case statements...

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00:04 <maz3> ok

00:04 <maz3> as you see i'm still a beginner, so certain things are new to me...

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00:05 <maz3> I am currently learning Java at school, then teaching myself ruby…. I am doing this by doing what ever I did in Java in Ruby

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00:06 <davidcelis> it's a decent way to go about it

00:06 <davidcelis> but you also need to be reading Ruby's API and relevant tutorials if those help

00:07 <maz3> yeah, I am starting to do that too

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00:08 <maz3> erm is there a way how to do for example case choice = a when hours < 10 etc...

00:08 <maz3> ?

00:08 <davidcelis> the problem is how you're even constructing the case from the start

00:09 <davidcelis> which is why i recommended you look at the documentation for case statements in ruby. it's clear that you don't understand how to do one

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00:10 <maz3> ok

00:10 <maz3> thank you :)

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00:14 <maz3> anyway g2g. thanks for your time. Will read the doc on ruby for now… thanks

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01:01 <abstrakt> is 1.9.3-rc1 more recent than 1.9.3-p0 ?

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01:02 <musee> no i don't believe so

01:03 <davidcelis> it is not

01:03 <abstrakt> ok for some reason my system seems to want to install rc1 and not p0

01:03 <davidcelis> specify p0

01:03 <abstrakt> er, well by "my system" i guess I mean rvm :)

01:03 <abstrakt> yeah I did that

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01:03 <abstrakt> it's ok I just wanted to double check that I wasn't crazy

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01:16 <zalesz> hi everyone! is there someone who isn't sleeping right now?

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01:21 <Tasser> abstrakt, rc is release candidate

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01:28 <abstrakt> Tasser, k, I knew that rc stood for release candidate but I've never seen p before

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01:28 <abstrakt> so I didn't know which was which and I'm too lazy to look it up and it doesn't matter *that* much

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01:28 <abstrakt> so, i figured I'd ask here

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01:42 <zalesz> maybe some of you here would know some gem/lib which would provide some toolset to work with motion jpegs ?

01:42 <zalesz> I've made some research but opencv bindings are old as hell

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01:42 <zalesz> and i cant find anything if rmagick could handle it

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02:02 <Axsuul> Is there any way in FactoryGirl when assigning an association another factory to either create it if it doesn't exist or build it?

02:02 <Axsuul> i.e. https://github.com/thoughtbot/factory_girl/issues/252

02:02 <Axsuul> omg wrong chan

02:02 <Axsuul> so sorry ♥

02:02 <zalesz> ;]

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02:20 <teej_m> I have an iOS app backed by a Ruby EventMachine server. Should I be timing out connections? I keep a simple running count of active connections (increment on post_init, decrement on unbind) and it seems like I'm keeping 20-40% more connections open then I'm using

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02:24 <zalesz> i havent worked with EventMachine yet, but also i havent seen anybody here for a long time

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02:25 <teej_m> I am probably the only person using it by itself

02:26 <teej_m> which is a shame because it's actually really fucking good.

02:26 <zalesz> I heard about it on last RuPy

02:27 <zalesz> but havent got time to play with it

02:27 <zalesz> hmm maybe you have been working with some mjpeg streams ?

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03:33 <kire> i'm embarrassingly inexperienced with ruby and wondered if someone could guide me to a document that could enlighten me as to what this error is telling me: "[jasmine-headless-webkit] A newer version of Rubygems is required to use vendored assets. Please upgrade. (StandardError)" i'm running ruby1.9.1 on ubuntu 11, everything installed via apt-get.

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03:36 <Brozilla> hire, run gem update and see if that works?

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03:38 <kire> Brozilla, it says "Nothing to update". do i have a conflict between my ruby version and gem version or something to that effect?

03:39 <kire> --version tells me i'm running gem 1.3.7.

03:39 <Brozilla> i'm on 1.8.11

03:40 <Brozilla> gem update --system, i'm not terribly experienced either

03:40 <kire> gem update --system gives me a really scary warning about about doing things outside the debian package manager. perhaps i should man up and just do that anyways. what's the worst that could happen...

03:41 <Brozilla> you could also just install rbenv and start clean on ruby 1.9.2

03:41 <Brozilla> or rvm

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03:43 <Brozilla> here's a 'guide' i found helpful: http://is.gd/Zrvsa5

03:43 <kire> ah, thanks for that.

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04:41 <ozzloy> i don't get rbenv

04:42 <ozzloy> er... the motivation behind it

04:42 <ozzloy> it sounds like the sstephenson developer had some bad experiences with rvm and rather than filing bug reports and talking with the rvm dev, sstephenson wrote a replacement

04:43 <ozzloy> but maybe i'm wrong. is the history documented somewhere?

04:45 <banisterfiend> ozzloy: there's a tonne of information on this, just google it

04:48 <skillachie> hi, has any one here used poppler in a project before ?

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04:49 <ozzloy> banisterfiend, yeah, i'm reading stuff right now, but not much history, just a bunch of people saying "RVM sucks!" "no it doesn't, you're an elephant!" "yes it does!"

04:49 <ozzloy> you know, internet fighting.

04:49 <banisterfiend> ozzloy: there are a few well reasoned blog posts on it

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04:50 <ozzloy> link?

04:50 <ozzloy> s

04:50 <ozzloy> links

04:50 <banisterfiend> ozzloy: http://www.jonathan-jackson.net/rvm-and-rbenv

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04:52 <ozzloy> thanks

04:54 <deryldoucette> ozzloy: and be sure to read http://delicious.com/redirect?url=http%3A//niczsoft.com/2011/11/what-you-should-know-about-rbenv-and-rvm/%3Futm_source%3Drss%26utm_medium%3Drss%26utm_campaign%3Dwhat-you-should-know-about-rbenv-and-rvm

04:54 <deryldoucette> damn it

04:54 <deryldoucette> ozzloy: sorry, long link url. meant http://niczsoft.com/2011/11/what-you-should-know-about-rbenv-and-rvm/

04:58 <ozzloy> deryldoucette, cool, thanks. reading up now

04:58 <skillachie> if anyone has used poppler before, could you please take a look at this http://stackoverflow.com/questions/8484426/ruby-poppler-pdf-table-of-contents-index . have posted here before via pastebin, but suspected alot of persons werent online

04:59 <skillachie> I dont need solution, just direction, cant seem to figure out what I am doing wrong

04:59 <deryldoucette> np. again, i apologie for the long ass link. i just right clicked the link i saved in delicious and forgot they're doing the same stupid shit as google and prefixing everything with their own link crap to 'ensure' they get credit for the link save.

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05:16 <robert_> so, rake comes back with "uninitialized constant YAML::ENGINE"; is that the package's fault, or...?

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05:31 <rpowell> .join #iphonedev

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05:31 <Clooth> .no

05:31 <rpowell> whoops

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05:48 <TandemAdam> anyone here have there head around git?

05:48 <banisterfiend> TandemAdam: ask the Q.

05:52 <TandemAdam> banisterfiend: thanks, but I just figured it out. User error :)

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06:31 <yelvert> so, i have a question, is BigDecimal just completely broken in 1.9.2?

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06:49 <RubyPanther> yelvert: No

06:50 <Indian> hello

06:50 <Indian> I just installed ruby gem

06:50 <Indian> and I cannot find it

06:50 <banisterfiend> Indian: maybe it's in your heart, where all the good things are.

06:51 <yelvert> RubyPanther: any idea why BigDecimal::limit does nothing, and passing the second argument (limit) doesnt limit the significant digits?

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06:52 <yelvert> https://gist.github.com/62e0a45890a0f2bb8be5

06:53 <kaos693> ...

06:54 <Indian> banisterfiend: ok

06:57 <Indian> banisterfiend: thanks for the insight

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06:57 <heftig> yelvert: BigDecimal.new(123456789.0,0)

06:58 <heftig> limit affects that.

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06:59 <yelvert> heftig: i set the limit with BigDecimal::limit(2) first, and it looks as though BigDecimal ignored it

07:00 <yelvert> unless im just looking at the whole thing wrong

07:00 <heftig> yelvert: doesn't seem to work if you use a string, but works if you use a float

07:00 <yelvert> hmm, ok ill try that

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07:02 <yelvert> heftig: passing a float to BigDecimal.new throws TypeError: can't convert Float into String

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07:03 <heftig> yelvert: works here.

07:03 <fixl> how is aptana for ruby development?

07:03 <fixl> any good?

07:04 <yelvert> what version of big decimal do u have? BigDecimal.ver

07:04 <heftig> 1.1.0

07:04 <yelvert> ahh, that may the issue, mine is 1.0.1

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07:06 <kaos693> aptana is good

07:06 <heftig> netbeans is nice, too.

07:07 <kaos693> meh

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07:17 <LowKey> hello, i want to ask about EventMachine handle, EventMachine::start_server("0.0.0.0", 443, Handler) , when i change 0.0.0.0 to any IP i have, it's wont work , but it's only works on 0.0.0.0

07:17 <LowKey> how to make it's work on different IP?

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07:19 <LowKey> ok fixed, my firewall block it

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07:48 <vyrus001> /w 16

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09:28 <jonathan___> Hi all, do you have a Ruby way to iterate an array 2 by 2 ?

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09:28 <banisterfiend> jonathan___: what do u mean by 2/2 ?

09:29 <jonathan___> when you do a : "array.each do |item| " you move item by item

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09:30 <banisterfiend> jonathan___: yeah but what does '2 by 2' mean?

09:30 <banisterfiend> jonathan___: surely you mean just 'by 2' right? 2 items each time? not '2 by 2' which implies some kind of 2 dimensional thing

09:30 <jonathan___> I'd like to have something like that : "array.each do |item, item+1| array[item] array[item+1] end"

09:31 <banisterfiend> jonathan___: array.each_slice(2)

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09:31 <jonathan___> thanks, I am going to try it

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09:34 <pp01bit> hi

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09:40 <jonathan___> banisterfiend, in fact it's not what I need

09:41 <jonathan___> I give an example, I've an array=["A","B","C","D"]

09:41 <banisterfiend> jonathan___: maybe you want each_cons(2)

09:42 <jonathan___> and I want to iterate the array by this way :

09:42 <jonathan___> 1) "A" "B"

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09:42 <jonathan___> 2) "B" "C"

09:42 <banisterfiend> jonathan___: then u want each_cons

09:42 <jonathan___> 3) "C" "D"

09:43 <jonathan___> ah good

09:43 <jonathan___> I was sure that something was already existing in Ruby for it

09:43 emmanuel_ [emmanuel_!~emmanuel@2a01:e35:2e4d:9010:21d:60ff:fe0e:b818] has joined #ruby

09:43 <jonathan___> let's try it

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09:48 <jds> I don't suppose anyone's written an xml-to-builder converter?

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09:49 <jds> To take xml text input (<foo/>), and output ruby builder code (xml.foo);

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09:52 <BiHi> any pointers on doing TDD on ruby binaries?

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10:30 <gener1c> i am trying to open a website using open-uri and i get this error:

10:30 <gener1c> `open_loop': HTTP redirection loop: http://www.aguda.org.il/ (RuntimeError) from /usr/lib/ruby/1.9.1/open-uri.rb:146:in `open_uri'

10:30 jgrimes [jgrimes!~jg@cpe-071-070-140-012.nc.res.rr.com] has joined #ruby

10:30 <gener1c> tried googling it but nadda

10:30 <gener1c> even in the ruby forum the thread just stopps with no answer

10:31 <gener1c> and surfing to that site is working ....

10:31 <jds> gener1c: Hm, works for me in 1.9.2

10:31 <gener1c> it worked for me aswell

10:32 pp01bit [pp01bit!~pp01bitDo@111.92.240.242] has joined #ruby

10:32 <gener1c> then for some reason stopped working

10:32 <gener1c> ohhh

10:33 <gener1c> in my server its 1.9.3p0

10:33 <gener1c> maybe thats the issue

10:33 <gener1c> nope it works now

10:33 <gener1c> how off

10:33 <gener1c> odd

10:33 <gener1c> ls

10:35 <gener1c> ok just added exceptions

10:35 <gener1c> (although i did exception handling in a higher level ,, this is truely wierd)

10:36 Adrieuxo [Adrieuxo!~jorixHmAI@115.64.27.246] has joined #ruby

10:36 <gener1c> ohhhhh i know what the issue is

10:37 <gener1c> im an idiot!

10:37 <banisterfiend> anyone here have any experience with ruby-debug?

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10:41 <jsaak> only on 1.8

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10:45 <banisterfiend> anyone here have any experience with ruby-debug?

10:47 <jsaak> me on 1.8

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10:51 <banisterfiend> jsaak: why doesnt this work https://gist.github.com/a6da478034e265ea6951

10:52 <gener1c> because you are too sexy for this code

10:53 <banisterfiend> gener1c: LOLOLOLOL

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10:57 <banisterfiend> jsaak: you're not helping me

10:58 <jsaak> hmm sorry i used rdebug, much faster

10:58 <Zavior> can I not declare a hash in ruby on different lines?

10:58 <banisterfiend> jsaak: no, ruby-debug is better

10:58 <jsaak> no idea why ruby-debug does not work sorry

10:58 <jsaak> is it the c version?

10:59 <banisterfiend> jsaak: yes

10:59 <jsaak> ahh

10:59 <jsaak> ok

10:59 <jsaak> as a workaround you can make breakpoint after running it

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11:25 <sgronblo> can the ruby garbage collector figure out that a variable won't be used anymore before a block runs to completion?

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11:26 <sgronblo> or should i set it to nil, if i know that some large colletion wont be needed for the rest of the method?

11:28 <shevy> not sure if the GC can or not, but it is not a common idiom to see anyone set a variable to nil again manually

11:28 <shevy> in ruby

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11:29 <sgronblo> yeah but in this case depending on how ruby's garbage collector works, it might make sense

11:29 <apeiros_> sgronblo: sounds like premature optimization to me

11:30 <apeiros_> MRI/KRI GC uses relatively simple mark-and-sweep, so only when an object isn't referenced anymore it can be collected

11:30 <sgronblo> apeiros_: well i already notice that my whole desktop manager gets sluggish when running this script

11:32 <apeiros_> sgronblo: then profile the script

11:32 <sgronblo> apeiros_: with?

11:32 <apeiros_> …a profiler?

11:32 <apeiros_> e.g. the one that's in the stdlib…

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11:34 <sgronblo> well i already noticed that i should refactor part of the method to the way it was before so I won't even have to think about setting it to nil or not

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11:36 <shevy> I dunno

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11:36 <shevy> I never think about setting much to nil, unless there may need be a case within the logic of the program itself... but never GC related so far

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11:39 <sgronblo> yeah it sounds a bit weird to me too, but the way the method worked before I refactored it, it might have made sense.

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11:41 <sgronblo> http://pastebin.com/Fg0nLPBE this is a simplification of the scenario i had

11:41 <sgronblo> but i moved retrieve_huge_collection into do_something_with_huge_collection

11:42 <shevy> hmm

11:42 <shevy> I suspect that this code perhaps does not do what you intend to do

11:42 <shevy> I mean, the GC probably does not run in between

11:43 <sgronblo> shevy: no?

11:43 <shevy> then again I dont really know what happens the moment a variable is set to nil

11:43 <shevy> not sure

11:43 <apeiros_> sgronblo: why you retrieve the whole collection? why not fetch individual elements (or slices) and process those?

11:44 <sgronblo> apeiros_: well the actual implementation was actually a rails ActiveRecord.all.group_by

11:45 <apeiros_> sgronblo: that's not really an answer :)

11:46 alem0lars [alem0lars!~quassel@87.19.30.252] has joined #ruby

11:46 <shevy> obtaining the full seems simpler

11:47 dv310p3r [dv310p3r!~dv310p3r@c-98-203-41-91.hsd1.fl.comcast.net] has joined #ruby

11:48 <sgronblo> well there might be some cleverer way to do it using in_batches_of or something, but this task is about trying to improve a cowboy coder's work so I try to optimize the time I have to spend on it rather than fully optimizing the efficiency

11:48 <sgronblo> the main goal was to avoid table locking which the current new solution seems to achieve

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11:52 <josemota> hi everyone. Anyone using Savon to connect to a service that requires HTTP auth?

11:54 <josemota> can't connect to a Scrumworks API because of that... tried http.headers['Authentication'] = "Basic #{Base64.encode("user:password")}" but it won't authenticate.

11:56 jensn [jensn!~Jens@c-83-233-145-148.cust.bredband2.com] has joined #ruby

11:59 <apeiros_> josemota: a little bit of research tells me that http is an HTTPI::Request

11:59 <apeiros_> and from its docs: http.auth.basic("username", "password")

12:00 <apeiros_> see https://github.com/rubiii/httpi

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12:16 <jonathan___> How to write the infinity in Ruby ?

12:16 <jonathan___> 1.0/0 ?

12:16 pi3r [pi3r!~pi3r@LSt-Amand-152-32-39-189.w80-11.abo.wanadoo.fr] has joined #ruby

12:17 <apeiros_> jonathan___: yes. I think it's now also available as Float::INFINITY

12:17 <apeiros_> don't know from what version on

12:17 <jonathan___> I prefer Floan::INFINITY

12:19 havenn [havenn!~skipper@pool-72-67-31-69.lsanca.fios.verizon.net] has joined #ruby

12:19 <shevy> Floan?

12:20 <apeiros_> a floaty flan

12:20 <rippa> http://s1.thehighdefinite.com/wp-content/uploads/2011/07/554G.jpeg

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12:23 <josemota> apeiros_ i'll check that out. Thank you very much, I apologize for the lack of research.

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12:31 <SMJ> http://mlomnicki.com/ruby/linux/2011/02/09/irc-notifications.html how would I add a word to the notification title in the script at the bottom?

12:32 <SMJ> a line like

12:32 <SMJ> if $_ =~ /<([^>]+)>(.*)/'

12:33 <SMJ> isn't currently very meaningful to me

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12:44 <adac> how can i add a value to a certain key in a hash? I currently doing it like this: "hash1[line] = array1" which is obiosly wrong :(

12:45 <apeiros_> what makes you think it was wrong?

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12:49 <keyword> hi guys I have a doubt I have to split a big csv file into multiple smaller files what is better use cmd shell for this or do it with ruby ?

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12:50 <adac> apeiros_, oh right! it was an other error! :)

12:51 <banisterfiend> apeiros_: how r u

12:51 bastilian [bastilian!~bastilian@213.47.77.12] has joined #ruby

12:51 <apeiros_> banisterfiend: still sick, but quite a bit better than yesterday. thanks for asking. and you yourself?

12:52 monban [monban!~gatekeepe@awesome-opossum.com] has joined #ruby

12:52 <banisterfiend> not bad, given that your'e swiss, do u know when the cern announcement is happening officially?

12:52 mklappstuhl [mklappstuhl!~mklappstu@p5B2C4902.dip.t-dialin.net] has joined #ruby

12:52 <apeiros_> what announcement?

12:52 <havenn> We found Higgs, P.S. - God is dead.

12:52 <banisterfiend> apeiros_: about the higgs

12:53 <apeiros_> god has been dead all along…

12:53 <apeiros_> no idea, not been watching the news the last 4 days…

12:54 <keyword> anyone can help me?

12:54 <banisterfiend> apeiros_: http://webcast.web.cern.ch/webcast/

12:54 <apeiros_> keyword: we do not know what is the deciding factor for "better" to you.

12:55 <shevy> keyword no

12:56 <banisterfiend> apeiros_: the crowd is a sea of macbooks

12:56 <banisterfiend> like a rubyconf

12:56 <apeiros_> seems to start in 4 minutes…

12:57 <shevy> 3

12:57 <shevy> 2

12:57 <shevy> 1

12:57 <shevy> GO!!!

12:57 <keyword> how was the way with ruby for do it? I have to split the csv and put the header again in each file

12:58 <apeiros_> um, simply store the header and when starting a new csv file, write it first?

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13:05 <sethetter> I'm trying to use BCrypt to set a session_hash that is returned to the client upon successful login to track sessions client side, however I'm recieving an invalid salt error in my tests, anyone mind taking a look? http://pastie.org/3010160

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13:24 <tightwork> When I run type rvm | head -1 I get rvm is /usr/local/rvm/bin/rvm what do I need to get rvm as a function?

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13:28 <keyword> question how can I add to start on the file a new line to existing file

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13:29 <apeiros_> keyword: not sure I understand your question correctly. to add a line to the start of an existing file, you read the whole file, add the line to the start of the string, then write the full thing out again.

13:30 nonotza [nonotza!~nonotza@cpe-72-225-173-7.nyc.res.rr.com] has joined #ruby

13:30 <apeiros_> so sth like: data = line+File.read(path); File.open(path, 'w') do |fh| fh.write(data) end

13:31 <apeiros_> if the file is huge and you don't want to read the whole file into memory, then I'd work with a temporary file.

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13:31 <adac> is there a fast way to compare two hashes keys? (in terms of is key1 of hash1 a key in hash2 )

13:32 <Phlogistique> anyone here has used Ruby-openCV and know how mature it is? I plan to use it for a school project because I prefer coding Ruby than C++, but I don't have a lot of time

13:32 <apeiros_> adac: hash2.has_key?(key1)

13:32 <adac> apeiros_, thanks a lot, i need to try this out right now :)

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13:47 <adac> apeiros_, hmm when i do acount over the keys of the both hashes, it states me tha hash1 has 30807 keys and hash2 has 30800... but wound't that then be determined by: hash2.has_key?(key1)

13:48 <apeiros_> what?

13:48 <adac> apeiros_, http://pastie.org/3010339

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13:49 <adac> this is what i do: compairing the thwo hashes (well the keys)

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13:50 <apeiros_> adac: oh, you can use Hash#keys and Array's set methods to do that more efficiently

13:51 <apeiros_> hash1.keys-hash2.keys will give you all keys of hash1 that are not present in hash2

13:51 <apeiros_> use & instead of - to get all keys that are present in both hashes

13:51 jbpros [jbpros!~jbpros@87.66.34.207] has joined #ruby

13:52 <adac> apeiros_, oh that sounds really nice!

13:55 nanderoo [nanderoo!~nanders@38.124.137.226] has joined #ruby

13:55 <adac> apeiros_, but just being curious: shouldn't my code also work?

13:57 dyer [dyer!~dyer@99-157-104-113.lightspeed.tukrga.sbcglobal.net] has joined #ruby

13:57 <apeiros_> adac: once keyfound is true in your code, it'll never switch back to false.

13:57 enikar [enikar!~gil@cl-140.mrs-01.fr.sixxs.net] has joined #ruby

13:57 <apeiros_> so probably no, your code doesn't work as you want it to

13:57 <apeiros_> also, count = count + 1 --> count += 1 --> or just count = hash1.size

13:57 <apeiros_> (last one outside the loop)

13:58 <adac> oh cool, thank you!

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14:11 <e1ement5> I'm using ruby-debug and the list command is repeatedly advancing the debugger. Anybody know why that would be?

14:12 <e1ement5> I don't remember it ever doing that before.

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14:12 <banisterfiend> e1ement5: maybe some Debugger.setting[:auto_..] option st

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14:14 <e1ement5> banisterfiend: Any idea where I can check that? This is Rails but I don't see any mention of it in the environment config files.

14:14 <e1ement5> And I haven't changed any settings, this would be default.

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14:17 <e1ement5> So I'll keep hitting "l" and it keeps advancing. Weird.

14:17 <jonathan___> Someone has an idea about how to do the intersection of 2 hashes ?

14:17 Hounth [Hounth!~hounth@163.5.221.217] has joined #ruby

14:18 <jonathan___> I found something interesting here http://www.informit.com/articles/article.aspx?p=26943&seqNum=3

14:18 <jonathan___> but not sure if it's the best Ruby way

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14:21 <apeiros_> jonathan___: you'd have to define the operation first

14:21 <apeiros_> depending on what you want it to be: Hash[h1.to_a & h2.to_a]

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14:24 <e1ement5> Is the list command in ruby-debug19 supposed to advance the debugger (is that normal behavior)?

14:24 <e1ement5> (I don't remember that occurring in the past)

14:24 timonv [timonv!~timonv@a83-160-133-157.adsl.xs4all.nl] has joined #ruby

14:25 <e1ement5> I'd think I'd be able to "list" all day long without the state changing.

14:26 <e1ement5> Does it work that way for anybody else? I tried it outside of Rails in a simple test script and see the same behavior.

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14:27 <kapowaz> question for HAML-knowing folks; can you split inline Ruby statements within HAML across multiple lines?

14:27 <tightwork> I'm trying to: rvm install 1.9.2,rbx,jruby but the error log has ERROR: Missing RVM environment file: '/usr/local/rvm/environments/ruby-1.9.2-p290 ?

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14:29 <e1ement5> Huh, actually the break is still on the same line. What's advancing with the 'list' command is the source display.

14:30 <tightwork> my local rvm is trying to touch files in /usr/local this makes no sense isnt the point of rvm is so I can install gems as non root user?

14:31 <e1ement5> List is described as "list forward," so that would appear to be expected behavior. 'list (lineno)' seems to provide the output I want.

14:32 <e1ement5> Or 'list =' (current line). I think I got it now. Ah yeah...

14:32 <shevy> I wanna get naked and party

14:32 <shevy> who is with me

14:32 <kapowaz> sure. I'll have a rum and coca-cola.

14:33 <kapowaz> but first; do you know anything about HAML?

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14:35 <shevy> that's a certain position isn't it?

14:35 <shevy> elegant... short...

14:35 <shevy> though not really needed

14:35 <shevy> CSS is good enough already, isn't it?

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14:40 <tightwork> I dont really care to install gems as non root user, I just dont understand why my non root user does not have access to the gem after installing as root. makes no sense

14:41 <tightwork> so everyone devs as root?

14:41 shevy2 [shevy2!~shevy@91-113-91-204.adsl.highway.telekom.at] has joined #ruby

14:41 <any-key> we like being unencumbered ;)

14:41 <any-key> I think a lot of people use RVM these days which keeps the whole root thing from happening

14:42 zzuxzzux [zzuxzzux!~rubenl@static-host-66-18-61-195.epbinternet.com] has joined #ruby

14:42 <shevy2> root thing?

14:42 moshef [moshef!~moshef@84.94.109.182.cable.012.net.il] has joined #ruby

14:42 <any-key> sudo gem install <foobar>

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14:49 <shevy2> ah

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14:56 <bdrewery> Is this a good place for C API questions?

14:56 <apeiros_> if it's rubys C API - sure

14:56 jgarvey [jgarvey!~jgarvey@cpe-174-097-248-211.nc.res.rr.com] has joined #ruby

14:56 <bdrewery> I have a FIXNUM VALUE returned from rb_eval_string_protect, but StringValue on it is throwing an exception (crashing). Yet 8.to_s works fine in irb

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15:00 <apeiros_> bdrewery: I'm not yet familiar with 1.9's C API (and barely was with 1.8's), but it seems that StringValue is the equivalent of to_str

15:00 <apeiros_> not to_s

15:00 <bdrewery> yeah I saw that distinction, assumed it was the same though

15:00 <apeiros_> try rb_funcall?

15:00 <bdrewery> will do

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15:02 <Phlogistique> apeiros_: is there a difference between to_str and to_s?

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15:02 <apeiros_> Phlogistique: yes

15:02 <bdrewery> yeah apparently there is http://briancarper.net/blog/98/

15:03 <bdrewery> Object only has to_s

15:03 <bdrewery> String has to_str

15:03 <bdrewery> that explains it, thanks apeiros_

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15:10 <commu> Is it possible to do an include? without considering the casse

15:10 <shevy> "include Foo"

15:10 <shevy> it wants an argument

15:11 <shevy> oh wait

15:11 <shevy> you mean an .include?

15:11 <shevy> though I still don't get it.

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15:11 <apeiros_> casse? case, as in case-insensitive?

15:11 <shevy> apeiros_ too hard to decipher from that statement alone :)

15:12 DrShoggoth [DrShoggoth!~prakwtf@68-188-73-250.static.stls.mo.charter.com] has joined #ruby

15:12 <commu> The method I was searching is casecmp, thanks shevy :p

15:13 <apeiros_> not quite the same…

15:13 Manhose [Manhose!~Manhose@193.136.33.133] has joined #ruby

15:14 <commu> apeiros_: how to use include? (or similar) without considering the case

15:14 <apeiros_> commu: either downcase both strings or use =~ /foo/i instead of .include?("foo")

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15:22 <ilteris> hey guys, I was trying to install ruby through homebrew but I got offline and now my screen hangs: http://cl.ly/2J1o183f1e1X0N3d011x what should I do to resume that?

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15:32 <Zavior> is it possible to call code before the execution of retry within a loop>

15:32 <Zavior> ?*

15:32 <Zavior> retry if (x > 1), I want to sleep before the retry happens though

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15:46 <Guest58992> Zavior, retry is for a begin...end block

15:46 <Guest58992> dang

15:46 <Zavior> it works in a loop too

15:46 mksm [mksm!~mksm@pdpc/supporter/professional/mksm] has joined #ruby

15:46 <Zavior> mksm: it works in a loop too

15:46 PaciFisT [PaciFisT!~PeaCE@76-10-149-67.dsl.teksavvy.com] has joined #ruby

15:47 <Zavior> I figured out how to do it though, basically just check if a variable is set to the current iteration at the start of the iteration

15:47 <Zavior> if it is, it's a retry

15:47 <Zavior> and I put my logic there

15:47 <Zavior> probably a little tacky…but ehh this is a hackathon

15:47 <Zavior> little hacky*

15:47 nari [nari!~nari@p62e324.totrnt01.ap.so-net.ne.jp] has joined #ruby

15:47 <mksm> Zavior, it works in a begin/end block inside a loop

15:48 <stetho> I'm quite new to Ruby and I keep coming across all these "gotchas" that keep catching me out. Silly things like the gem bin folder not being on the default path and different OS's having different versions of package installed bits of Ruby meaning that when I do X on Ubuntu it's fine and when I do it on CentOS or OS X it's broken and I have to upgrade X and even sometimes downgrade Y and Z. I know it's an open-ended question but does a guide to "install a wor

15:48 <stetho> reasonably up to date Ruby with all the paths set and versions in sync on various Linux-y platforms" exist?

15:48 consti [consti!~consti@unaffiliated/consti] has joined #ruby

15:48 <apeiros_> stetho: rvm

15:48 <wayne[mobile]> hi

15:49 <Zavior> blah keep hitting this API rate limit...bkah

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15:53 <shevy> beatbox

15:53 <shevy> one two three

15:53 <shevy> GO

15:54 * atmosx runs

15:54 <shevy> stetho typically this happens because ubuntu annoys the user

15:54 <shevy> and the other distributions too

15:54 <atmosx> no

15:54 <shevy> they love to stay incompatible to one another

15:54 <atmosx> gentoo does not annoy me… oh wait, installing ruby 1.9 system-wide is a Herculian task...

15:54 akem [akem!~akem@unaffiliated/akem] has joined #ruby

15:54 <atmosx> so yes, I'll agree with shevy

15:54 <shevy> they don't even use a simple, common scheme to call their dev-packages the same

15:55 <shevy> hmm

15:55 <shevy> haven't used gentoo much

15:55 <atmosx> I like it, because I understand the underlying logic

15:55 <atmosx> but the ruby maintainer has serious issues

15:55 <shevy> many years ago... on a laptop. a very slow laptop. :) compiled a lot... I went to sleep. Next day, compilation had ended with some error. At this point I did not give it another try

15:55 <atmosx> You're better of with rvm

15:55 <atmosx> under gentoo

15:56 <atmosx> shevy: there are many possible reasons for that, but I won't put you through "Gentoo is better than anything else out there"

15:56 <atmosx> it's just good enough for me, to use Leenoux

15:56 dch4pm4n [dch4pm4n!~d@gateway/tor-sasl/dchapman1988] has joined #ruby

15:57 <shevy> ah no

15:58 <shevy> that ship has sailed for me a long time ago. I used Gobolinux for a while and couldn't go back to just stay within the FHS. Now I am kinda stuck to compile everything from source on my own, which isn't ideal either as it takes too much time away. :/

15:58 <JonnieCache> TEXMATE 2 AND THE HIGGS BOSON IN ONE 24 HOUR PERIOD!

15:58 <ilteris> can someone tell me what I am doing wrong here please? http://cl.ly/3N272E3M0a1Z2H0I1R0n

15:58 <JonnieCache> IT ISN'T EVEN CHRISTMAS YET!

15:58 <shevy> but at least I dont get the headache of "what package is that in" anymore

15:58 <rippa> JonnieCache: you mean absence of higgs boson

15:58 <JonnieCache> yeah but its looking good though

15:58 <atmosx> shevy: yeah but a package manage is optimal, even for your situation

15:58 <apeiros_> JonnieCache: nah, they only narrowed down the band on where to expect the higgs

15:59 <shevy> atmosx I am still writing on my own :)

15:59 <JonnieCache> yeah and the textmate 2 alpha is useless but dont rain on my parade

15:59 <atmosx> shevy: eh? you wrote your own package manager? :-)

15:59 sorin [sorin!~sorin@66-168-187-62.dhcp.gwnt.ga.charter.com] has joined #ruby

15:59 <shevy> atmosx well, hmm. I wouldn't call it a package manager at this point as there are still some features missing.

15:59 <atmosx> which gem/program should I use if I want to create a .conf file from which a ruby script will read configuration? XML or even simple TXT will do

16:00 <shevy> it's more mostly just a collection of ruby scripts that aid in compiling and installing something

16:00 <JonnieCache> atmosx: if you need to do xml in ruby you want http://nokogiri.org

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16:01 <shevy> ilteris I dont see anything on http://cl.ly/3N272E3M0a1Z2H0I1R0n - also, perhaps use http://pastie.org/ instead

16:01 <JonnieCache> atmosx: but yaml or json would probably be better

16:01 <apeiros_> atmosx: for configuration, yaml is widespread

16:01 jwmann [jwmann!~Adium@modemcable242.110-201-24.mc.videotron.ca] has joined #ruby

16:01 <apeiros_> nicer to read & write than XML

16:01 <sorin> Hi.

16:01 <atmosx> oh okay, yaml it is then… but I need to a YAML configuration file first

16:01 <shevy> atmosx yaml is quite nice. data = YAML.load_file("bla.yml"); pp data

16:02 <atmosx> yeah, I worked with YAML before

16:02 <atmosx> it's nice that you add manipulate the file directly with VIM

16:02 <shevy> atmosx, for most part, at least how I used it, it is just a "key: value" pairing. Sometimes with newlines, then you can use | and indent on the next line

16:02 <shevy> or key: and on the next lines several "- foo" entries if you need an array

16:02 <atmosx> cool, much more easily readable than XML

16:03 <JonnieCache> you can also do a sort of mixin-style pattern with yaml hashes, cant remember what its called. very useful

16:03 <atmosx> any simple ruby program which reads it's conf from XML? Just to see some code examples

16:03 <shevy> what I hate in XML are the closing tags

16:04 Axsuul [Axsuul!~Axsuul@75-140-75-52.dhcp.mtpk.ca.charter.com] has joined #ruby

16:04 <atmosx> ah textmate makes that easy

16:04 <atmosx> vim too (I guess with some plugin for xml)

16:04 <shevy> require "rexml/document"; xml_file = "/bla/foo.xml"; doc = REXML::Document.new(File.new(xml_file))

16:04 <shevy> root = doc.root

16:04 <sorin> I wonder why are gems dependent on the RubyGems version? It is silly to have to install two versions of Ruby just because one needs two versions of RubyGems? If a Linux distro's packages were dependent on the version of rpm/apt/pacman, people would be cursing that distribution all over the Internet.

16:04 <shevy> video = root.elements['video']

16:04 <JonnieCache> rexml is slooow though. guess that doesnt matter if youre just dealing with some config files

16:05 <shevy> but getting the data into the XML is very annoying if you do it manually. I think YAML is much better for that

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16:05 <shevy> sorin huh? install two versions of ruby because of gems?

16:06 <shevy> what is that madness

16:06 <shevy> is that the RVM way to solve things

16:06 <shevy> oh

16:06 <shevy> distribution madness

16:06 <shevy> that explains it :)

16:06 <shevy> people rarely curse though

16:06 <shevy> they love distributions

16:06 <sorin> shevy, certain things want RubyGems 1.3.6; others, want RubyGems > 1.3.7. It's idiotic.

16:07 <shevy> hmm

16:07 <shevy> isn't that very old?

16:07 <shevy> gem -v tells me I am on 1.8.12

16:09 duey [duey!~duey@duey-2-pt.tunnel.tserv3.fmt2.ipv6.he.net] has joined #ruby

16:09 <atmosx> I'm on 1.8.11

16:09 <atmosx> how is tha tpossible, I upgraded a couple of minutes ago

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16:10 <atmosx> jeez

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16:13 <shevy> no idea. I think I downloaded http://rubyforge.org/frs/download.php/75573/rubygems-1.8.12.tgz not too long ago... a day or two ago or something like that

16:14 tatsuya_o [tatsuya_o!~tatsuya_o@27-142-96-128.rev.home.ne.jp] has joined #ruby

16:14 <JonnieCache> what are you trying to use that demands rubygems 2.3.6?

16:14 <JonnieCache> are you sure it doesnt say >= 1.3.6?

16:15 <JonnieCache> *1.3.6

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16:15 io_syl [io_syl!~io_syl@unaffiliated/steph021] has joined #ruby

16:16 <JonnieCache> (i just ran gem update --system and im now on 1.8.12 which apparently came out on 02/12/2011)

16:17 jrist-demo [jrist-demo!~jrist@184-96-222-92.hlrn.qwest.net] has joined #ruby

16:17 <atmosx> I run gem update and I'm still at 1.8.11

16:17 nonotza [nonotza!~nonotza@66.246.94.130] has joined #ruby

16:17 <atmosx> maybe it's because I'm on macosx

16:17 <shevy> hehe

16:17 <shevy> don't you love systems where things are all different :)

16:17 otakutomo [otakutomo!~otakutomo@KD027083117212.ppp-bb.dion.ne.jp] has joined #ruby

16:17 <atmosx> shevy: hahaha yeah. totally!

16:18 ryh [ryh!~ryh@host-174-45-115-181.bzm-mt.client.bresnan.net] has joined #ruby

16:18 <JonnieCache> nah im on osx

16:18 <atmosx> JonnieCache: and u use brew?

16:18 <atmosx> as a package mangaer? or the default ruby/gem binaries?

16:18 <JonnieCache> i use homebrew all the time

16:18 <atmosx> okay I use macports

16:18 <atmosx> that's it then

16:18 axl_ [axl_!~axl@173-11-52-113-Minnesota.hfc.comcastbusiness.net] has joined #ruby

16:18 <JonnieCache> i installed my ruby however through ruby-build

16:18 <JonnieCache> which is part of rbenv

16:19 <JonnieCache> but that shouldnt affect how rubygems updates itself afaik

16:19 <atmosx> yeah but I'm too tired to look at this now

16:19 <atmosx> the program I'm currently writing is not affected so...

16:19 <JonnieCache> yeah theres no point doing this shit when youre tired

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16:27 <keyword> hi guys I have a doubt I installed delajed jobs in rails 2.3.8 but when I run rake jobs:works I get undefined method `now' for nil:NilClass anyone know what is it?

16:27 <JonnieCache> keyword: ask in #rubyonrails

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16:32 <k2iguvah1taja> Hello

16:33 RomD [RomD!~Roman@nrbg-d93236c7.pool.mediaWays.net] has joined #ruby

16:33 <k2iguvah1taja> YARV wiki is down :(, maybe someone knows a mirror?

16:33 kirun_ [kirun_!~kirun@78-86-154-194.zone2.bethere.co.uk] has joined #ruby

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16:34 altivec [altivec!~altivec@95.105.19.20.dynamic.ufanet.ru] has joined #ruby

16:35 <k2iguvah1taja> I would like to learn more about how for example YARV works, maybe someone knows a good book? I mean general topic book about programming languages which is a good start?

16:36 kenperkins [kenperkins!~textual@174-24-164-49.tukw.qwest.net] has joined #ruby

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16:42 <JonnieCache> k2iguvah1taja: i think there are some questions on StackOverflow about book recommendations

16:42 <JonnieCache> theres probably some stuff in there about compiler theory

16:43 <workmad3> k2iguvah1taja: start with the Dragon book for compilers

16:45 kenperkins [kenperkins!~textual@174-24-164-49.tukw.qwest.net] has joined #ruby

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16:46 <k2iguvah1taja> ok, thank you

16:46 dasfugufish [dasfugufish!~Adium@71-213-26-228.slkc.qwest.net] has joined #ruby

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16:50 <srid> EventMachine's `Channel.push` blocks. i thought that api was async?

16:51 <lkba> czesc

16:51 altivec [altivec!~altivec@95.105.19.20.dynamic.ufanet.ru] has joined #ruby

16:51 <lkba> I am sorry

16:52 kf8a [kf8a!~kf8a@242.sub-174-254-242.myvzw.com] has joined #ruby

16:53 Sliker [Sliker!~ponies@117.163.pn.adsl.brightview.com] has joined #ruby

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16:59 <musee> soooo

16:59 <musee> that taught me to not cat .gem/specs/rubygems.org%80/latest_specs.4.8

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17:03 <JonnieCache> lol would that happen to be the entire archive of the specs for every gem by any chance? :)

17:04 <JonnieCache> let me guess it was gzipped and so contained command characters that fucked up your shell?

17:04 <Tasser> I've got a perl and a python script to run - IO.popen3 ?

17:04 <Boohbah> http://www.ruby-forum.com/topic/3202165

17:04 <Boohbah> loooool

17:05 <JonnieCache> lol indded

17:05 adamkittelson [adamkittelson!~adamkitte@c-24-23-252-19.hsd1.ca.comcast.net] has joined #ruby

17:05 <JonnieCache> that reminds me of going into IRC channels back in the day and telling people "I FOUND A SECRET MIRC BACKDOOR! PRESS ALT+F4 TO GET OPS!"

17:05 <Tasser> wtf?

17:05 LiquidInsect [LiquidInsect!~billabney@173-228-63-32.dsl.static.sonic.net] has joined #ruby

17:06 <Tasser> JonnieCache, did it work?

17:06 <JonnieCache> yes.

17:07 <Tasser> how well?

17:07 <JonnieCache> depended on the channel

17:08 Optimis [Optimis!~Optimis@cpe-98-149-171-51.socal.res.rr.com] has joined #ruby

17:08 <JonnieCache> irc really was retarded back in the late 90s/early 2000s. and so was i. but at least i was a child, thats some excuse

17:08 <JonnieCache> ahhh, the days of l33t mirc scripts

17:09 <ccooke> Ahh, the days of text-mode scripts that automatically filtered out 90% of the l33t mirc scripts output :-)

17:09 Mohan [Mohan!~nixh0st@unaffiliated/mohan] has joined #ruby

17:09 <srid> how is it that "foobar\n".split /\n/ returns ["foobar"] without an empty item as 2nd element?

17:09 <JonnieCache> yeah but i wouldve just owned you with my OOB packet attack or whatever it was called.

17:09 <JonnieCache> WINNUKE! that was it

17:09 <srid> doc says "If pattern is a Regexp, str is divided where the pattern matches."

17:10 <ccooke> JonnieCache: Text mode clients. I was using linux and solaris back then :-)

17:10 <ccooke> (Still using linux now)

17:10 <Tasser> srid, hm.

17:10 <ccooke> (ah, winnuke. Nostalgia :-)

17:10 <Tasser> ccooke, killing win98?

17:11 <ccooke> Tasser: and earlier :-)

17:11 <k2iguvah1taja> wierd

17:11 <k2iguvah1taja> it works at the beginning

17:11 <k2iguvah1taja> but not if \n @ end

17:13 <ccooke> srid: the spec doesn't require split to return two values in that case. It *has* split the string. The implementation treats the string as a number of records deimited by the search pattern

17:13 thone [thone!~thone@g230191031.adsl.alicedsl.de] has joined #ruby

17:14 <ccooke> so, if the delimiter pattern is at the end of a string, it marks the end of the preceeding record in the string but doesn't require the existence of a subsequent (empty) record.

17:14 <ccooke> probably the right thing to do.

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17:15 <srid> ccooke: heh. is there a way at all to "just split" by a delimitter in ruby?

17:15 <srid> without eating up empty sub-strings

17:16 <srid> eg: i want "\nfoo\n".mysplit "\n" to return ["", "foo", ""]

17:16 <srid> context: i'm writing a function that receives chunks of data (from Net::SSH output) and spit out a sequence of lines

17:17 <rippa> srid: add spaces to start and end

17:17 <srid> ... and that looks like: https://gist.github.com/848e616b34c399025a7a

17:17 <ccooke> srid: rippa just to the end

17:17 <rippa> maybe

17:17 <ccooke> er. rippa: just to the end, even.

17:18 <rippa> right

17:18 <rippa> at the start it works already

17:18 <rippa> I just assumed he tried it

17:18 <k2iguvah1taja> maybe use scan?

17:18 burgestrand [burgestrand!~burgestra@h-163-174.a155.priv.bahnhof.se] has joined #ruby

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17:20 <k2iguvah1taja> ("asd\n".scan /(.*)\n?/).to_a.map { |e| e[0]}

17:20 <k2iguvah1taja> maybe it's butt slow

17:20 <srid> split works as expected in Python: "foo\n".split("\n") => ['foo', '']

17:20 <k2iguvah1taja> don't know that :P

17:21 stepnem [stepnem!~stepnem@176.119.broadband10.iol.cz] has joined #ruby

17:21 <JonnieCache> ccooke: if you fancy some more nostalgia, check this out http://www.users.nac.net/splat/winnuke/ teardrop, jolt, the ping of death… things were so easy back then

17:21 <ccooke> srid: Purely out of interest (not saying you're wrong to need it :-) why do you need the empty string?

17:21 driv3r [driv3r!~driv3r@user-46-113-153-188.play-internet.pl] has joined #ruby

17:21 <srid> ccooke: rippa - adding space to end (and remembering to massage the return value accordingly) is a bit more complicated; i'll use that if i can't find a simpler solution

17:21 <JonnieCache> when you could crash IIS just by sending it an 8kb URL

17:22 <srid> ccooke: i'm writing a function that receives chunks of data (from Net::SSH output) and spit out a sequence of lines. here's the body of the loop that receives the chunk (as "data") - https://gist.github.com/848e616b34c399025a7a

17:22 zalesz [zalesz!~zalesz@user-46-113-153-188.play-internet.pl] has joined #ruby

17:22 <srid> remember, Net::SSH just spits data as it comes from ssh, with no regard for newline buffering.

17:22 <srid> in that above gist, the call .spit causes a bug.

17:22 Ankhers [Ankhers!~user@76-10-149-67.dsl.teksavvy.com] has joined #ruby

17:23 <ccooke> srid: "foobar\n".scan( /.*(?:\n|$)/ )

17:23 davidcelis [davidcelis!~david@70-89-180-6-smc-or.hfc.comcastbusiness.net] has joined #ruby

17:23 raythecat [raythecat!~raythecat@cpe-76-88-24-94.san.res.rr.com] has joined #ruby

17:23 <ccooke> srid: will be what you want

17:23 Jrz [Jrz!~jrz@d152222.upc-d.chello.nl] has joined #ruby

17:23 <ccooke> srid: but I don't think you actually *should* use that :-)

17:23 <srid> => ["foobar\n", ""] ;; why is there an extra newline?

17:23 <burgestrand> You really need the \n? The $ means end of line anyway.

17:23 <ccooke> srid: because split is doing the Right Thing in terms of ssh output.

17:24 <shevy> srid try a .chomp or a .reject {|x| x.empty? }

17:24 <ccooke> the \n at the end of the line is the newline, after all - nothing was printed after it, so there *wasn't* another line

17:24 <srid> "foobar\n" is just a simple example. in reality, it would be something like "log line 1\nlog line 2\nincomplete"

17:24 <ccooke> srid: it's not extra, it's just returning you the full lines.

17:24 <ccooke> srid: "foobar\nincomplete".split( /\n/ ) => ["foobar", "incomplete"]

17:24 <ccooke> srid: split does the right thing.

17:25 <ccooke> if there *is* no data past the last newline, it returns nothing. If there is, it returns it.

17:25 Fretta [Fretta!~Fretta@ip184-187-186-58.sb.sd.cox.net] has joined #ruby

17:25 <srid> *lines, buffer = "foobar\n".split /\n/

17:26 <srid> here, I expect `lines` to contain ["foobar"]

17:26 <srid> but it doesn't. instead that is assigned to `buffer`

17:26 <srid> that's the bug for this special case

17:26 <ccooke> no, that's a problem with your code :-)

17:26 <ccooke> this isn't a bug

17:26 <srid> "buffer" is supposed to contain incomplete chunk at the end of the string to be split. it will be processed in next llop, when next chunk comes in

17:27 <ccooke> (you're losing information there, even if it does work

17:27 <srid> yea, my code was written assuming .split behaves like python's .split

17:27 <apeiros_> just that buffer will consume first, *rest after

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17:29 <ccooke> srid: you're better off, there, using data.scan( /^[^\n]*\n?/ )

17:30 <ccooke> srid: that will get you each line (with its newline intact), with the last value without a newline.

17:30 <ccooke> and will always (as you want) return *something* for the last value.

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17:31 <srid> hehe, this behaves like python's split: "foo\n".split "\n", -9999

17:32 <vandemar> is there a syntactically simpler way of doing Array.new(26){|i|i} ? (I want an array, not an iterator)

17:32 Kivi [Kivi!~joni@ec2-79-125-13-112.eu-west-1.compute.amazonaws.com] has joined #ruby

17:32 <apeiros_> vandemar: [*0...26]

17:32 <burgestrand> vandemar: (0..26).to_a

17:32 elb0w [elb0w!~gtsafas@38.112.182.36] has joined #ruby

17:32 <burgestrand> either

17:32 <burgestrand> :p

17:32 <apeiros_> burgestrand: either ... or 25

17:33 <ccooke> srid: the main thing is that the * modifier consumes everything left over after non-* variables have consumed

17:33 <burgestrand> Ah, yes, I always think the dot replaces the last value but longer dots means longer array.

17:33 <ccooke> srid: so *lines, buffer doesn't do what you think it foes

17:33 <burgestrand> :(

17:34 <srid> ccooke: apparently, adding a -1 argument to .split fixes the problem for me.

17:34 <ccooke> srid: so I see

17:34 <ccooke> srid: but you're losing data now :-)

17:34 <srid> "foo\nbar\nbaz\n".split /\n/, -1 => > ["foo", "bar", "baz", ""]

17:34 malkomalko [malkomalko!~malkomalk@66-234-41-82.nyc.cable.nyct.net] has joined #ruby

17:34 <ccooke> (well, probably not in this case)

17:34 <srid> you mean losing "\n"? that's fine. i expect it to happen.

17:34 thecreators [thecreators!~rskagy@cpe-65-27-202-53.cinci.res.rr.com] has joined #ruby

17:34 <ccooke> *nod*

17:35 * srid had clojure's line-seq in mind http://clojuredocs.org/clojure_core/clojure.core/line-seq

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17:35 <srid> basically that's what I am implementing in ruby. line-seq.

17:36 <srid> i tried to do this the fiber way (my project relies on eventmachine), but it seems complicated

17:36 mengu [mengu!~mengu@unaffiliated/mengu] has joined #ruby

17:36 <srid> so i'm using EventMachine.Queue which just adds verbose code

17:36 <srid> net:ssh -> {queue} -> line-seq -> {queue} -> process-func

17:36 Araxia_ [Araxia_!~Araxia@173-164-68-213-Oregon.hfc.comcastbusiness.net] has joined #ruby

17:37 <burgestrand> That looks awfully similar to the line protocol

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17:39 <R3dy> rvm install 1.8.7 fails

17:39 <R3dy> is that not the proper syntax of the command?

17:39 <shevy> rvm is a fail in itself

17:39 ixti [ixti!~ixti@251.Red-88-25-53.staticIP.rima-tde.net] has joined #ruby

17:39 <any-key> how so?

17:39 d2dchat [d2dchat!~d2dchat@c-98-209-18-197.hsd1.mi.comcast.net] has joined #ruby

17:39 <JonnieCache> R3dy: thats should be the proper command I think… post the logs

17:40 <JonnieCache> but yeah i gave up on rvm for rbenv and ruby-build

17:40 muraii [muraii!42ce7403@gateway/web/freenode/ip.66.206.116.3] has joined #ruby

17:40 <R3dy> JonnieCache: http://pastebin.com/Q4KPevK5

17:40 <shevy> any-key it adds complexity to simple problems for many people. and everyone seems to be attracted to it these days like the moth to the candle

17:40 Squarepy [Squarepy!~Squarepy@wcw-staff-214-224.wireless.uva.nl] has joined #ruby

17:40 <R3dy> shevy: I only use it because someone in here recommended it when I was having a differnt problem

17:41 <any-key> well, it does make installation of ruby extremely simple and can be done on a per-user basis

17:41 <R3dy> it has worked well for me for the most part

17:41 Squarepy [Squarepy!~Squarepy@unaffiliated/squarepy] has joined #ruby

17:41 <shevy> well actually from that log

17:41 <shevy> that's not really RVM related is it?

17:41 shal3r [shal3r!~shal3r@office.gold.lv] has joined #ruby

17:41 <JonnieCache> R3dy: god knows. looks like missing dev packages or something. not rvm related

17:41 <shevy> gcc -I. -I../.. -I../../. -I../.././ext/dl -DHAVE_DLFCN_H -DHAVE_DLOPEN -DHAVE_DLCLOSE -DHAVE_DLSYM -DHAVE_DLERROR -I. -fPIC -g -O2 -fPIC -fno-defer-pop -fno-omit-frame-pointer -c dl.c

17:41 <JonnieCache> R3dy: you on linux?

17:42 <shevy> dl.c:104:0:

17:42 <R3dy> Arch linux

17:42 <shevy> ext/dl/dl.c

17:42 <shevy> that seems to be an extension

17:42 <shevy> "dl"

17:42 <shevy> what was that again?

17:42 <muraii> Hello. Running Ruby 1.9.3-p0 on Cygwin in WinXP. I'm having issues compiling some gems, specifically with posix-spawn. I've found that the gem on rubygems.org doesn't have the most recent commit which stops compilation on cygwin. I tried to rake the gim from the git repo, but rake complains it can't find extensiontask.

17:43 tilde` [tilde`!~tilde@host238-192-dynamic.12-79-r.retail.telecomitalia.it] has quit [#ruby]

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17:43 <shevy> on that line it pulls in #include "callback.func"

17:43 <JonnieCache> try using your packages manager's `whatprovides` command

17:43 <muraii> I've reinstalled both Ruby and the rake gem (the former also doing the latter), with no change. Wondering what my next step should be.

17:44 <burgestrand> extensiontask… isn’t that part of rake-compiler?

17:44 alex__c2022 [alex__c2022!~alex@207.239.64.154] has joined #ruby

17:44 <R3dy> JonnieCache: pacman only has ruby 1.9.2

17:44 <R3dy> which works fine

17:44 <Tasser> R3dy, nah, it's got 1.9.3

17:44 <R3dy> accept I'm trying to install and run http://dradisframework.org/

17:44 Pip [Pip!~Pip@host-87-156-66-217.spbmts.ru] has joined #ruby

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17:44 <R3dy> Tasser: you are right my pad

17:44 <burgestrand> muraii: I’d give it a try: gem install rake-compiler

17:44 <muraii> burgestrand: I assumed it was a standard library/function as well.

17:44 <R3dy> anyways Draids is failing and I'm wanting to try it on 1.8.7

17:44 p0y [p0y!~p0y@125.212.56.55] has joined #ruby

17:44 <muraii> burgestrand: I'll do that now.

17:45 alfism [alfism!~alfism@2620:149:4:1201:9939:3287:5ce6:fbc] has joined #ruby

17:45 strife25 [strife25!strife25@nat/ibm/x-nuikqdmskdopuyje] has joined #ruby

17:46 <muraii> burgestrand: Ding ding!

17:46 perlsyntax [perlsyntax!~perlsynta@unaffiliated/perlsyntax] has joined #ruby

17:46 <burgestrand> muraii: um. Klonk?

17:47 iocor [iocor!~textual@unaffiliated/iocor] has joined #ruby

17:47 jergason [jergason!~jergason@c-67-161-248-217.hsd1.ut.comcast.net] has joined #ruby

17:48 <muraii> burgestrand: That allowed me to build the gem with the updates, and the gem is now installed. The whole motivation was to get jekyll installed, which has turned into learning some of how Ruby works, which is great. Jekyll is now successfully installed.

17:48 <muraii> burgestrand: Thank you much for the help.

17:48 j3r0m3 [j3r0m3!~j3r0m3@74.42.230.218] has joined #ruby

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17:48 <burgestrand> muraii: happy hippos and ponies! \o/

17:49 jgrimes [jgrimes!~jg@cpe-071-070-140-012.nc.res.rr.com] has joined #ruby

17:49 <R3dy> so no guesses on that log file?

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17:49 <burgestrand> R3dy: what’s your OS?

17:49 <JonnieCache> R3dy: you're missing some header packages

17:49 <R3dy> Arch Linux

17:49 <R3dy> JonnieCache: Kernel Headers?

17:50 <JonnieCache> no, headers for some other lib ruby depends on (i think)

17:50 <JonnieCache> use your package manager to find out what dl.c is all about

17:50 <JonnieCache> because thats what the log implies its having trouble with

17:51 <JonnieCache> most package managers have a command which will tell you which package provides a particular header

17:51 enroxorz [enroxorz!~enroxorz@65-117-22-130.dia.static.qwest.net] has joined #ruby

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17:51 <JonnieCache> yum has `whatprovides` but i dunno what arch has

17:51 <R3dy> dl.c is a file pulled down from rvm

17:51 <burgestrand> Might have an old version of glibc, looking at those error messages

17:51 <R3dy> and placed into the ruby1.8.7 directory

17:51 <burgestrand> I’ve seen this error before I think, long ago

17:51 <JonnieCache> R3dy: yes, but it is referencing something else that isnt there

17:51 <srid> burgestrand: line protocol?

17:51 voodoofish430 [voodoofish430!~mtorres@NAT5.pas.idealab.com] has joined #ruby

17:52 <burgestrand> srid: part of eventmachine, all the protocols have a receive_data(data) method, and once they buffer up a full line it’ll call receive_line(line)

17:52 <burgestrand> srid: (for the line protocol handlers, that is)

17:52 <burgestrand> R3dy: could you go to the source where ruby is? Probably ~/.rvm/src/ruby-1.8.7 something

17:52 <srid> interesting. is there any way I can use this with net::ssh (via em-ssh)?

17:53 felipe [felipe!~felipe@unaffiliated/felipe] has joined #ruby

17:53 <R3dy> so include callback.func

17:53 <R3dy> is at line 104

17:53 <R3dy> that is the issue?

17:53 <burgestrand> R3dy: no, I believe your callback.func needs to be rebuilt

17:54 <R3dy> if I use my package manager to search for callback it shows libsigc++

17:54 <srid> i use em-ssh's "on_data" handler. net::ssh has no "on_line"

17:54 <R3dy> which I have installed

17:55 <burgestrand> srid: I would believe you could use it, but I have no idea how em-ssh works so I wouldn’t know how, but you could look at the built-in eventmachine protocols here and see how they work: https://github.com/eventmachine/eventmachine/tree/master/lib/em/protocols

17:55 <burgestrand> srid: line_protocol.rb is probably the simplest one

17:55 paissad_ [paissad_!~paissad@89-92-16-151.hfc.dyn.abo.bbox.fr] has joined #ruby

17:55 <burgestrand> srid: and probably one of the three you could use yourself, but it might be more work than what you’re doing now, who knows ;)

17:56 thecreators [thecreators!~rskagy@cpe-65-27-202-53.cinci.res.rr.com] has joined #ruby

17:56 <R3dy> LOL guys there is a page on the ArchLinux Wiki specific to callback.func and ruby 1.8.7

17:56 <burgestrand> R3dy: go to the ruby 1.8.7 source dir for RVM, jump down to ext/dl and rebuild the callback.func with the mkcallback.rb file in that directory

17:56 <R3dy> I'm sure I can fix it from here

17:56 <JonnieCache> R3dy: this is probably a silly question, but all your system packages are up to date right?

17:56 ephemerian [ephemerian!~ian@82-69-1-248.dsl.in-addr.zen.co.uk] has quit [#ruby]

17:56 <R3dy> sorry for wasting your time

17:56 <burgestrand> R3dy: link?

17:56 <R3dy> https://wiki.archlinux.org/index.php/RVM

17:56 rramsden [rramsden!~rramsden@s64-180-62-209.bc.hsia.telus.net] has joined #ruby

17:56 <JonnieCache> R3dy: not a waste of time, everyone learns something

17:57 <burgestrand> R3dy: looks like exactly the same thing I just told you :)

17:57 <burgestrand> You could skip the rm if you just use a single > instead of >> though

17:57 perlsyntax [perlsyntax!~perlsynta@unaffiliated/perlsyntax] has joined #ruby

17:57 <burgestrand> Oh wel

17:57 <burgestrand> …l

17:57 avandenhoven [avandenhoven!~avandenho@96.49.64.248] has joined #ruby

18:00 rubyruy [rubyruy!~ruy@76.77.91.41] has joined #ruby

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18:02 altivec [altivec!~altivec@77.79.186.193.dynamic.ufanet.ru] has joined #ruby

18:02 <R3dy> success!

18:02 apucacao [apucacao!~apucacao@thelevel.com] has joined #ruby

18:02 <burgestrand> \o/

18:03 daniel_hinojosa [daniel_hinojosa!~danno@c-68-35-182-153.hsd1.nm.comcast.net] has joined #ruby

18:04 <JonnieCache> git is seriously the most amazing shit ever invented

18:05 renanoronfle [renanoronfle!~renanoron@189.102.48.152] has joined #ruby

18:05 <R3dy> I don't know why git is better then svn

18:05 <R3dy> how is it differnt?

18:05 <JonnieCache> just spent ten minutes chopping bits out of various utterly broken branches to make one shiny working branch of the best of all possible worlds

18:05 <avandenhoven> I've extracted some code from a script that seems to work well for opening files with the right encoding. I've quickly tested this but does anyone see any issues I've missed? https://gist.github.com/1473114

18:05 <JonnieCache> easy branching basically

18:05 <JonnieCache> svn makes branching difficult

18:05 <burgestrand> And merging those branches later.

18:05 Russell^^ [Russell^^!~Russell^^@88.97.51.87] has joined #ruby

18:06 <avandenhoven> R3dy: Branching and merging is definitely the big one.

18:06 <avandenhoven> And having your own local repository to work with which you can sync to some shared remote when you like is a close second.

18:07 <R3dy> gotcha, good to know

18:07 <JonnieCache> i like being able to make a total mess of my local repo without affecting anyone elses work

18:07 <R3dy> I've never ran a project before so I don't have much experience

18:07 <R3dy> as a user they are really the same, "Pull down these files..."

18:07 <R3dy> "updated to the latest version"

18:07 <R3dy> that's as far as I get lol

18:07 flippingbits [flippingbits!~anonymous@port-212-202-126-63.static.qsc.de] has joined #ruby

18:07 <JonnieCache> once you get into the habit of doing branches for everything it becomes so useful

18:08 cyri_ [cyri_!~cyri_@nor75-27-88-178-186-47.fbx.proxad.net] has joined #ruby

18:08 <ReinH_> JonnieCache: it's not the branching that matters

18:08 <ReinH_> branching is trivial because merging actually works

18:08 d2dchat [d2dchat!~d2dchat@adsl-99-34-172-251.dsl.sfldmi.sbcglobal.net] has joined #ruby

18:08 <ReinH_> you can branch pretty easily in svn too

18:09 <JonnieCache> when you branch in svn it copies lots of files doesnt it? so if you have a very big codebase its inefficient

18:09 <R3dy> does anyone here run Dradis?

18:09 <JonnieCache> whereas in git branching is just a tag on a commit, its instant

18:10 <JonnieCache> basically using git makes me feel like i have magic powers.

18:12 brownies [brownies!~brownies@unaffiliated/brownies] has joined #ruby

18:12 <JonnieCache> especially `git-bisect run` that is some jedi knight shit

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18:14 <ReinH_> sure, it's inefficient, I'm just saying that the point of git is not just that branching is trivial, it's also that merging actually works

18:14 <ReinH_> you wouldn't branch if you couldn't merge

18:15 <JonnieCache> yeah that is the main thing i guess

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18:24 <shevy> lalalalala

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18:53 <robert_> so, mod_passenger isn't working.

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18:56 <lord1234> why is this bad? "IWT_avail = blah" i get an error that it is a "dynamic constant assignment", however if i call it iwt_avail, it's ok

18:58 dark3rdre4ms [dark3rdre4ms!~Ethan@adsl-99-102-186-14.dsl.bltnin.sbcglobal.net] has joined #ruby

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18:58 <Ankhers> lord1234: In ruby, variables that are in caps, are known as constants.

18:58 <apeiros_> lord1234: the line on its own isn't bad, but the fact that that line is within a method is

18:58 <lord1234> even though this one isn't caps

18:59 <lord1234> its technically the name of the item i am working with(it's called "IWT")

18:59 <apeiros_> you shouldn't assign constants in a method

18:59 <apeiros_> lord1234: um, I is caps

18:59 <lord1234> apeiros_: i see

18:59 <Ankhers> sorry, if it starts with a capital letter....

18:59 <Ankhers> That was my mistake.

18:59 <lord1234> if it starts witha caps.

18:59 <lord1234> ok

18:59 <lord1234> ty

19:02 <shevy> hmm why does ruby prevent dynamic constant assignment from within a method?

19:02 burgestrand [burgestrand!~burgestra@h-163-174.a155.priv.bahnhof.se] has joined #ruby

19:03 <burgestrand> shevy: you can use remove_const/const_set to get around it

19:03 <shevy> yeah

19:03 <JonnieCache> its a constant, its not meant to be reassigned

19:03 <shevy> I am doing that in one project

19:03 <JonnieCache> hence the name

19:03 <shevy> JonnieCache what about first-time assignments?

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19:03 <JonnieCache> i guess doing that in a method implies that it could not be constant

19:04 <Ankhers> My guess would be that the method could be called multiple times, always changing the CONSTANT, which would defeat the purpose of a constant... sounds like you need a variable instead.

19:04 <JonnieCache> maybe the method wont be called

19:04 <shevy> def setup_my_extra_cool_constants_only_if_i_require_some_fancy_project

19:04 <burgestrand> require 'my_constants'

19:04 <shevy> though I had not had that need so far actually

19:04 <burgestrand> ;)

19:04 gener1c_ [gener1c_!~gener1c@bzq-79-181-116-10.red.bezeqint.net] has joined #ruby

19:04 <shevy> oh yeah

19:05 <shevy> Ankhers yeah but in ruby you can redefine CONSTANTS anyway. you only get a warning

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19:06 <Ankhers> yeah, but if you get a warning, it probably isn't a good practice to be doing what you're doing.

19:07 <shevy> hehe

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19:07 <shevy> I need to find someone who will sit to my left side and whenever I write bad things, that person needs to yell at me :)

19:07 <JonnieCache> go use a compiled language then

19:08 <JonnieCache> thats what compilers are for

19:08 <vandemar> %q() %r() %s() %w() and %x() are perlisms right? or did perl copy them from somewhere else?

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19:09 <shevy> JonnieCache I feel they put a lot of constraints on the programmer

19:09 <shevy> it's like coding in a prison

19:09 <JonnieCache> me too. i dont enjoy strongly typed languages unless they have good type inference

19:09 <shevy> vandemar good question

19:09 jbpros [jbpros!~jbpros@87.66.34.207] has joined #ruby

19:09 <shevy> perhaps perl borrowed from another language? I really dont know

19:09 <JonnieCache> but if you want someone to yell at you when you write bad things, the java compiler will definitely do that :)

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19:10 <shevy> do those shortcuts mean something? %x ... %r ...

19:10 <shevy> hmm well r is perhaps "quoted regex"

19:10 <JonnieCache> yeah

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19:10 <JonnieCache> %w creates an array of strings

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19:10 <JonnieCache> %w{foo bar baz} == ["foo", "bar", "baz"]

19:10 <JonnieCache> I use that all the time

19:10 <shevy> ok... probably w for "quoted words" or something like that

19:11 <shevy> I too

19:11 <shevy> though I use %w()

19:11 <rippa> %x is shell command

19:11 <JonnieCache> you can use almost char for the brackets

19:11 <JonnieCache> you can do %w:foo bar : i think

19:11 <shevy> x ... what could x mean ...

19:11 <JonnieCache> *almost any

19:11 <rippa> eXecute

19:11 <shevy> whoa

19:11 <shevy> indeed! "%w:foo bar :" works ...

19:11 <vandemar> executes the interior (subject to PATH) and returns output

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19:11 <shevy> omg I learned some obfuscation trick

19:12 <shevy> I must combine this with :symbols and ternary operator!

19:12 <shevy> yeah rippa, makes sense :)

19:12 <robert_> so, mod_passenger isn't working. it just sits there. I've set my paths correctly, it even errors when the path I try to give it doesn't exist.

19:12 <JonnieCache> shevy: its a nice route out of escape character hell

19:12 <Zal> Hi, playing with ruby koans to learn about ruby. What does :thing syntax create?

19:13 <rippa> shevy: %%#{??}%

19:13 mnajem [mnajem!~mnajem@120.141.193.100] has joined #ruby

19:13 <rippa> Zal: symbol

19:13 <shevy> no wait

19:13 <shevy> what is %%#{??}%

19:13 <shevy> omg

19:14 <shevy> IRB says it is 63

19:14 <shevy> oh

19:14 <shevy> #{}

19:14 <shevy> and ??

19:14 <shevy> ok... ?? is 63

19:14 <Zal> rippa, thanks, I'll cross-reference

19:14 <shevy> what is the %%% though?

19:14 nanoyak [nanoyak!~nanoyak@50-0-164-69.dsl.dynamic.sonic.net] has joined #ruby

19:14 <vandemar> Zal: think of a symbol as a string that you mainly want to use as a key or for comparison, and never (or very rarely) want to print out. :foobarbatbaz takes up less memory than "foobarbatbaz"

19:14 <rippa> shevy: quoted string

19:15 <rippa> like %()

19:15 <rippa> %!!

19:15 <rippa> *interpolated

19:15 <shevy> hmm

19:15 <shevy> oh right

19:16 <shevy> man, that can be very confusing...

19:16 <Zal> vandemar, gotcha, thanks much.

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19:19 <Mon_Ouie> ?? isn't 63, it's '?'

19:20 <rippa> it may be in 1.8

19:20 lord1234 [lord1234!~zombie@unaffiliated/topchef] has quit [#ruby]

19:20 <rippa> I'm not sure though

19:20 <Mon_Ouie> It is in 1.8, I just felt like arguing about still using 1.8. :p

19:21 thatryan [thatryan!~thatryan@c-24-4-167-46.hsd1.ca.comcast.net] has joined #ruby

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19:23 <thatryan> hi all, I know i have ruby installed I use it to for my jekyll blog, but in another directory running a rake fails, do i need to install ruby again?

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19:26 <vandemar> fails how?

19:26 <crazed> anyone ever open a unix socket to make requests to a rack server before?

19:26 <crazed> i'm trying this: http://pastie.org/3011924

19:26 <thatryan> vandemar: i get the error rake aborted!

19:26 <thatryan> no such file to load -- bundler

19:26 <vandemar> do you have the bundler gem installed?

19:26 <thatryan> Yes, I installed it to use with Octopress

19:26 <thatryan> i was in another directory when I installed it though..does that matter?

19:26 rpowell [rpowell!~rpowell@CPE-58-166-127-97.lnse5.cht.bigpond.net.au] has joined #ruby

19:26 <imperator> thatryan, echo $RUBYOPT

19:26 <thatryan> whats that

19:27 <vandemar> if you installed the gem as non-root it would be in ~/.gem and trying to use that gem as another user will fail

19:27 <imperator> thatryan, does it work if you explicitly "require 'rubygems'" first?

19:27 <thatryan> vandemar: I am same the same user

19:27 <thatryan> imperator: dont know how to do that

19:28 <imperator> thatryan, let's try a different approach

19:28 <imperator> fire up irb

19:28 mnajem [mnajem!~mnajem@120.141.193.100] has joined #ruby

19:28 workmad3 [workmad3!~workmad3@cpc1-bagu10-2-0-cust81.1-3.cable.virginmedia.com] has joined #ruby

19:28 <thatryan> lol sorry, brand new to ruby stuff ;)

19:29 <imperator> thatryan, ok, which OS are you on?

19:29 <thatryan> is there a way I can uninstall and reinstall for use everywhere?

19:29 <thatryan> OS X lion

19:29 <imperator> ok, on the command shell type "irb"

19:30 patant [patant!~patant@h-141-11.a176.priv.bahnhof.se] has joined #ruby

19:30 <thatryan> ok...what is that?

19:30 zzuxzzux [zzuxzzux!~rubenl@static-host-66-18-61-195.epbinternet.com] has joined #ruby

19:30 <imperator> terminal

19:30 <imperator> you can find it under Applications/Utilties

19:30 <thatryan> lol no no im in terminal

19:31 <thatryan> i meant what is irb

19:31 <imperator> oh, interactive ruby shell

19:31 <workmad3> thatryan: interactive ruby

19:31 <imperator> very handy for testing little bits of code

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19:31 <thatryan> ahha ok

19:32 <imperator> you should see a prompt like ">>" or something similar

19:32 <thatryan> yeah

19:32 <imperator> ok, type: require 'rubygems'; does that return true or false

19:32 <imperator> ?

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19:33 <thatryan> it changed the prompt to ?>

19:33 austinbv [austinbv!~austinbv@rrcs-24-73-203-202.se.biz.rr.com] has joined #ruby

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19:33 <imperator> did you hit enter?

19:33 <thatryan> yes

19:33 <austinbv> is there a way to conditionally check down a chain of objects?

19:33 <thatryan> >> require 'rubygems';

19:33 <thatryan> i typed that

19:34 <workmad3> thatryan: did you type the '>>' as well? :/

19:34 <thatryan> lol no

19:34 <austinbv> and if any are nil just return nil instead of throwing an exception

19:34 <imperator> thatryan, oops, no semicolon

19:34 <thatryan> just copied the entire line

19:34 <thatryan> ah ok

19:34 <imperator> hit ctrl-c + return, should get you back

19:34 <workmad3> ; shouldn't matter...

19:34 <thatryan> ok returned false (no semicolon)

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19:34 <imperator> workmad3, irb seems to interpret that as meaning awaiting more input

19:35 <workmad3> imperator: oh, that makes sense... sort of :)

19:35 <thatryan> the opposite of SQL ;)

19:35 <thatryan> which just waits until you hit the damn semicolon

19:35 <workmad3> thatryan: that's because a ; is required to end a statement in SQL :)

19:35 <thatryan> yeah i thought it might be the same here oops

19:36 <workmad3> thatryan: whereas in ruby, it's optional, but required if you want to put more than one statement on a line

19:36 <thatryan> good to know!

19:36 <imperator> thatryan, what was the result?

19:36 <thatryan> false

19:36 <imperator> ok, try require 'bundler'

19:36 mnajem [mnajem!~mnajem@120.141.193.100] has joined #ruby

19:36 <thatryan> load error: no such file.....

19:37 <workmad3> austinbv: in what sense?

19:37 * workmad3 wonders what thatryan's original problem is

19:37 <workmad3> I came in half way through :)

19:37 <austinbv> workmad3: in coffeescript you can do some awesome stuff like person.leg?.foot?.toe

19:37 lord1234 [lord1234!~zombie@unaffiliated/topchef] has joined #ruby

19:37 <thatryan> lol

19:37 <imperator> thatryan, how did you install bundler?

19:37 <austinbv> and if leg or foot are undefined the thing just returns null

19:37 <workmad3> austinbv: oh, do you mean something like person.try(:leg).try(:foot).try(:toe) ?

19:37 <lord1234> am I doing something wrong here: http://pastie.org/3012000

19:38 <austinbv> ah try works

19:38 <lord1234> can I not reference @@colbrowser that way?

19:38 <austinbv> it's just not as pretty in ruby

19:38 <thatryan> imperator: I was in another directory, and followed this http://octopress.org/docs/setup/

19:38 <JonnieCache> austinbv: you mean like a maybe monad style thing?

19:38 <workmad3> austinbv: no... generally I'd suggest you'd want to not return a plain nil ;)

19:38 <workmad3> austinbv: although it's not as heinous as doing such a thing in java or javascript :)

19:39 <JonnieCache> you can get that in ruby with andand https://github.com/raganwald/andand

19:39 <austinbv> workmad3: what's wrong with just returning nil

19:39 <austinbv> all I want is a value at the end of a chain if it's not there or any of it's parts I don't really care :P

19:39 <workmad3> austinbv: because it generally requires special handling... you should look up the null object pattern at some point :)

19:39 Manhose [Manhose!~Manhose@bl18-45-1.dsl.telepac.pt] has joined #ruby

19:40 <imperator> thatryan, oh, i have no idea then

19:40 <austinbv> workmad3: will do so now

19:40 <JonnieCache> austinbv: look at andand its the closest thing you can get in ruby to that

19:40 imperator [imperator!~Daniel@63-225-247-192.hlrn.qwest.net] has quit ["Leaving"]

19:40 <workmad3> austinbv: as I said, it's not as bad as other languages where null is not an object... at least with ruby nil is an object and you can do things like .try() :)

19:40 <thatryan> imperator: ha. is that an abnormal way to install it all?

19:41 <austinbv> ah

19:41 <workmad3> thatryan: did you install with rvm?

19:41 <workmad3> thatryan: and what is the problem you're having? :)

19:42 <robert_> so, passenger isn't working -- it just sits there. I've set my paths correctly, it even errors when the path I try to give it doesn't exist.

19:42 <robert_> :/

19:42 mnajem [mnajem!~mnajem@120.141.193.100] has joined #ruby

19:42 <robert_> anybody have any ideas?

19:42 <Tasser> robert_, #rubyonrails

19:42 <thatryan> workmad3: I installed following these few steps http://octopress.org/docs/setup/ and the problem was that in a different directory i had no access to rake

19:43 cyri_ [cyri_!~cyri_@jem75-1-87-88-118-80.dsl.sta.abo.bbox.fr] has joined #ruby

19:43 <robert_> Tasser: thanks.

19:43 <workmad3> thatryan: yeah, those steps tell you to use either rvm or rbenv...

19:43 <workmad3> thatryan: I was wondering which you used :)

19:44 <lord1234> am I doing something wrong here: http://pastie.org/3012000 can I not call @@colbrowser that way?

19:44 <thatryan> is that wrong?

19:44 <workmad3> thatryan: it's not wrong... but I kinda need to know which you used in order to help

19:44 <thatryan> i gotcha

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19:46 <thatryan> workmad3: so i just installed bundler again lol in the new directory i am in.. is there a way to uninstall all the ruby and gems and bundler ive installed everywhere and install it ONCE to work everywhere?

19:46 eignerchris [eignerchris!~eignerchr@c-24-20-239-11.hsd1.or.comcast.net] has joined #ruby

19:47 <workmad3> thatryan: damn, I g2g and eat... I might be on again later to help

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19:54 <thatryan> workmad3: ok thanks

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19:56 <Zal> Question about slicing: a slice is nil if the starting index is out of range. So why does [1,2,3,4][4,10] return [] instead of nil? Isn't an index of 4 out of range in this case?

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20:00 <Zal> I guess it's a "special case". The docs also call a[4] => nil a special case, which doesn't seem special to me.

20:00 <Zal> that is, where a = [1,2,3,4]

20:00 ascarter [ascarter!~ascarter@209.119.253.66] has joined #ruby

20:01 <apeiros_> Zal: it's like with poles in a fence

20:01 <apeiros_> you have 4 elements in the array, but 5 "poles"

20:01 <Zal> ok, I can go with that. Thank you.

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20:05 <vandemar> apparently if you start at a valid pole including the ending pole you get an empty set; if you start at an invalid pole, or if you request a negative number of elements (like [1,2,3,4] ), you get nil

20:05 <vandemar> should be [1,2,3,4][1,-1]

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20:06 <Zal> cool, makes sense to me. Let's see if ranges gel as easily...

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20:15 <shal3r> can you explain what "Frozen" means for gem?

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20:17 Amirh [Amirh!~amir@2.181.25.108] has joined #ruby

20:18 <Zal> what's the difference between Array.collect and Array.map?

20:19 <Zal> (or collect! and map! for that matter)

20:19 <apeiros_> none

20:19 <Zal> ok, is one or the other idiomatically preferred?

20:19 <apeiros_> I prefer map

20:19 <Zal> "map" is shorter :-)

20:19 <apeiros_> maps better to my thinking

20:20 <Zal> <nod>

20:20 <apeiros_> btw., we use # to designate instance methods: Array#map (instance method 'map' of class 'Array')

20:20 <apeiros_> :: for class methods

20:20 <Zal> I see, thank you.

20:22 <Tasser> apeiros_, why not + and - as in objc?

20:22 rpowell [rpowell!~rpowell@CPE-124-176-123-100.lns8.ken.bigpond.net.au] has joined #ruby

20:23 <apeiros_> ask whomever came up with it

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20:30 <lord1234> hey apeiros_ can u help me out with this: https://gist.github.com/5ea0d35b44de755ec0f6

20:30 Tomasso [Tomasso!~papito@186.23.14.175] has joined #ruby

20:30 <lord1234> i don't understand why it thinks the class variable is Nil

20:31 <lord1234> i get an undefined method find_elements for nil:NilClass error in IRB when I try to run that line through

20:31 <Tomasso> i parsed a json and im getting in `[]': can't convert String into Integer (TypeError)

20:31 <Tomasso> when I try parsed_json["nodename"] , what could be wrong? it does work by doing parsed_json[0] for example, this i ruby 1.9.3

20:31 wyhaines_ [wyhaines_!~wyhaines@mo-71-50-23-63.dhcp.embarqhsd.net] has joined #ruby

20:32 <apeiros_> lord1234: check whether Selenium::WebDriver.for :firefox returns nil

20:32 <apeiros_> other than that, given just that information I'd say it ought to work

20:32 skrewler [skrewler!~skrewler@209.213.206.58] has joined #ruby

20:32 <lord1234> apeiros in other functions up above, i also call @@col_browser, successfully

20:32 epochwolf [epochwolf!~epochwolf@unaffiliated/epochwolf] has joined #ruby

20:32 <apeiros_> Tomasso: array != hash

20:33 <apeiros_> lord1234: you assign to @@col_browser elsewhere?

20:33 <lord1234> negative

20:33 <Tomasso> .. i thought json parsed returned a hashhh... there should be some way to get it..

20:34 <apeiros_> Tomasso: JSON can be either a hash or an array

20:34 <JonnieCache> json parses to a hash if its a hash and an array if its an array

20:34 <JonnieCache> json can contain both

20:35 <lord1234> apeiros_: any thoughts otherwise?

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20:35 <apeiros_> lord1234: nope

20:35 <Tomasso> it parses to array if ["a","b"] and to a hash if { "a" : "value" } ..

20:36 mnajem [mnajem!~mnajem@120.141.193.100] has joined #ruby

20:36 <JonnieCache> yeah

20:37 <lord1234> apeiros_: how about this gist: https://gist.github.com/d80bbeaf72906ebb84e2 see line 90.

20:38 <lord1234> thats the entire class, andafaik, there is no assignment to @@col_browser other then at the very top

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20:40 <lord1234> general call stream goes get_columns;temp = get_column_name_exist_PD;verify_pd_columns(temp);

20:41 <lord1234> it fails inside of verify_pd_columns on line 90

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20:44 <luis> Hello. Is there a short-hand syntax for array.slice(n, array.length)?

20:45 <apeiros_> lord1234: no idea

20:45 <apeiros_> luis: array[n..-1]

20:45 <lord1234> <rageface>

20:45 j3r0m3 [j3r0m3!~j3r0m3@adsl-99-174-154-113.dsl.scrm01.sbcglobal.net] has joined #ruby

20:45 <lord1234> :(

20:45 <luis> apeiros_: thanks!

20:46 mickn [mickn!~mickn@unaffiliated/mickn] has joined #ruby

20:47 <lxsameer> does any one used uwsgi with ruby

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20:59 <lxsameer> what is the best webserver for ruby ?

21:00 <Boohbah> lxsameer: 'best' is subjective

21:00 <apeiros_> define 'best'

21:01 <Tasser> lxsameer, what do you need it for?

21:01 stkowski [stkowski!~stkowski@ns25.8x8.com] has joined #ruby

21:01 <lxsameer> i need a web server that be fast and took minimum memory

21:02 <lxsameer> i have about 10 or 20 users

21:02 altivec [altivec!~altivec@81.30.191.11.dynamic.ufanet.ru] has joined #ruby

21:02 <yxhuvud> how much functionality does the site need?

21:02 <lxsameer> its a redmine installation

21:03 <JonnieCache> if it only has 10-20 users you could probably get away with a single instance of thin

21:03 <JonnieCache> or unicorn

21:03 <JonnieCache> depends how much theyre gonna use it

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21:04 <lxsameer> hmmmm ok letme try them

21:04 <JonnieCache> otherwise just go for nginx+passenger

21:06 <lxsameer> thanks man

21:07 <JonnieCache> thin/unicorn are single threaded, so its one request at a time

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21:07 <JonnieCache> so if multiple users are trying to access it, it will slow down

21:07 <JonnieCache> but maybe not by much

21:08 <JonnieCache> i dont have experience with redmine, dont know how efficient it is

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21:09 <Tasser> JonnieCache, unicorn got workers, thin eventmachine. both handle multiple requests pretty well. unicorn can use multiple cores too, used that one in production for a not-so-small site

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21:19 <ciunix> hi all.. Do you suggest me to use padrino as web framework to develop a wep app?

21:20 <ciunix> At this time we are trying to use sinatra

21:20 xhubert [xhubert!~alex@213-21-78-58.customer.t3.se] has joined #ruby

21:22 <ciunix> are there anybody?

21:22 xhubert [xhubert!~alex@213-21-78-58.customer.t3.se] has quit [#ruby]

21:24 <burgestrand> There’s no good way to answer that for you. Might be a terrible idea, might not. Why do you say *trying* to use sinatra?

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21:30 <ciunix> burgestrand I use trying because I'm a newbie in ruby and all is frameworks

21:31 WhiteHorse [WhiteHorse!~WhiteHors@201.208.150.8] has joined #ruby

21:31 <ciunix> and for these reasons I'm asking if padrino is a good framework to learn

21:32 <burgestrand> padrino is good if you want something more than sinatra but not necessarily rails

21:32 <matti> ciunix: Try few and choose the one you like, or the one that soves your particular use case.

21:33 <burgestrand> Was like five months I used padrino, and I expect it to have matured a bit since then. Was a nice experience back then, but it changed a lot even during those two months so it was tricky to keep up.

21:33 <burgestrand> Things I wrote one week would be out-of-date the next.

21:33 `brendan [`brendan!~b@66-208-246-34-ubr02b-waldlk01-mi.hfc.comcastbusiness.net] has joined #ruby

21:34 <`brendan> quick (possibly dumb) question.. can ruby use COM objects?

21:34 <burgestrand> But yeah, I’d try it if there’s no reason not to. It was fun, and the result is nice.

21:34 mnajem [mnajem!~mnajem@120.141.193.100] has joined #ruby

21:34 <`brendan> the mail server we use at work supports COM objects, but i don't know if ruby does

21:35 <burgestrand> I haven’t done it myself, but might that be this win32ole thing?

21:35 <burgestrand> ^ `brendan

21:35 <`brendan> i'm in the beginning stages of learning ruby and looking for some guidance. XML/RPC access can also be used to interact w/ the mail server

21:35 <`brendan> hmm, burgestrand.. that's a good point

21:35 <burgestrand> `brendan: http://www.ruby-doc.org/stdlib-1.9.3/libdoc/win32ole/rdoc/index.html

21:35 <burgestrand> `brendan: *no idea* if that helps you in any way

21:35 <gener1c_> wazza

21:35 <`brendan> now that i remember looking through their API docs and talking to their support the COM stuff with PHP was for Windows-based setups

21:35 <`brendan> :/

21:36 <ciunix> we are going to develop a web app that responds to requests from mobiles

21:37 <ciunix> and for this reason we are searching something to help us in this develop

21:37 <`brendan> burgestrand, ty for that info

21:37 stetho [stetho!~stetho@217.111.143.154] has joined #ruby

21:37 <burgestrand> `brendan: yw, I hope it helps somewhat

21:37 jensn_ [jensn_!~Jens@c-83-233-145-148.cust.bredband2.com] has joined #ruby

21:37 <`brendan> it does

21:37 <`brendan> helps me remember the windows COM

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21:38 <`brendan> i remember that when i was writing scripts in php for the mail server and wasn't initalizing the API object

21:38 <`brendan> ty again

21:38 <ciunix> then burgestrand.. a your personal opinion: do you suggest us to use padrino in that project? (funny the names: sinatra-padrino eheh)

21:39 <shadoi> Any know if it's possible to make a ruby UDP socket receive Unicast AND Broadcast on the same socket?

21:39 kedare_ [kedare_!~kedare@2a01:e35:2f26:5330:8011:6ad7:22bd:8d34] has joined #ruby

21:39 <shadoi> I know it's possible in C but I can't figure out a way to make Ruby do it

21:40 <shadoi> for example: http://stackoverflow.com/questions/800302/udp-broadcast-and-unicast-through-the-same-socket

21:40 <Zal> Is it considered good practice to always use explicit return values in methods, even when not necessary?

21:40 <burgestrand> ciunix: it’s a decision of judgement, if I believed it would not be too heavy on view/application logic (e.g. an actual website) I don’t see why not

21:40 <Zal> or does no one really care?

21:41 <burgestrand> Zal: I can say it’s not necessarily bad practice to leave it out

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21:41 <Zal> burgestrand, excellent, thank you

21:41 <Boohbah> shadoi: the highest rated answer says make a new socket

21:41 <burgestrand> Zal: so I’d say implicit return is possibly the more common approach

21:41 <burgestrand> Zal: as opposed to always explicit return

21:41 <Zal> burgestrand, got it, thanks.

21:42 <shadoi> Boohbah: yeah but I HAVE to have it on a single port.

21:42 ubuntunoob [ubuntunoob!c242af52@gateway/web/freenode/ip.194.66.175.82] has joined #ruby

21:42 <ciunix> ok burgerstrand thanks

21:42 <ubuntunoob> tuby.

21:42 <ciunix> I try it and I decide :)

21:42 <ubuntunoob> RUBY SUMMER CUP 2012 !!

21:43 <burgestrand> ciunix: if it becomes unwieldy you should notice it quite early, and should have the time to switch to something else if you need :)

21:43 <Zal> so a method like "def foo :value1 :value2" returns the *last* implicit expression (:value2 in this case)?

21:43 <Zal> oops, forgot "end"

21:44 <ciunix> ok we try

21:44 <ciunix> where are you from burger

21:44 <burgestrand> Zal: unless there’s an explicit return value, the last value will be what’s returned

21:44 <Zal> burgestrand, great, thanks again.

21:44 <burgestrand> ciunix: sweden

21:45 <burgestrand> Zal: also do remember every expression has some kind of return value, ":value unless false" will have the result nil

21:45 <burgestrand> …

21:45 <burgestrand> Always funny saying things this late.

21:45 <ciunix> it's so cold there for me, I'm in the northen part of italy and for me it's cold to here..

21:45 <ciunix> because I'm sicilian :)

21:45 <burgestrand> Zal: :value *if* false, rather

21:46 <burgestrand> ciunix: visited rome this august, could barely sleep at night because it was so warm ;)

21:46 <ciunix> eheh

21:46 <ciunix> in august just tourists go in rome

21:46 <Boohbah> shadoi: http://stackoverflow.com/a/1165448

21:46 Amirh [Amirh!~amir@2.181.21.163] has joined #ruby

21:46 <ciunix> all italian go to the sea

21:46 <burgestrand> yeah, because italian knows it’s too darn hot to stay in the city

21:47 <burgestrand> at least streets were empty

21:47 <burgestrand> :p

21:47 <ciunix> exactly

21:47 <ciunix> I can imagine

21:47 <ubuntunoob> tuby

21:47 <ciunix> and now there? a lot of snow???

21:47 <burgestrand> no :( had snow like two weeks ago, now just rain and stormy weather

21:48 btanaka [btanaka!~textual@17.212.166.137] has joined #ruby

21:48 <burgestrand> rain almost every day

21:48 <ciunix> here everyday fog

21:48 <ubuntunoob> i tried to code with tuby but then they managed to give me assignment in ruby

21:48 <ciunix> a strong fog

21:48 <burgestrand> heh, cool

21:48 <Zal> burgestrand, hm, ok, so that's like an implicit "else nil" I guess?

21:48 <burgestrand> Zal: yeah, I guess you could think of it like that

21:48 <Zal> ok, cool

21:48 <burgestrand> Zal: I think of it like this: it has no return value, but since this is ruby it has a return value, so what could it be? nil

21:48 <ciunix> well burger nice to meet you.. I go to try padrino

21:49 <ciunix> bye

21:49 <burgestrand> ciunix: good luck :)

21:49 <ubuntunoob> tuby

21:49 <Zal> burgestrand, heh, ok, everything has a return value. Thanks!

21:49 <burgestrand> *nods*

21:49 <ciunix> thanks

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21:56 <shadoi> Boohbah: yes, that's in C.

21:57 strife25 [strife25!strife25@nat/ibm/x-kwbkpsspfomwwojs] has joined #ruby

21:59 <gener1c_> C is sexy

21:59 <gener1c_> ruby is better

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22:26 <zalesz> is here anyone who used ruby/gstreamer ?

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22:29 <WhiteHorse> I just found the FASTEST way of learning Ruby... and any language :D

22:29 <WhiteHorse> http://code.he.net/

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22:30 <RubyPanther> if it is from Hurricane Electric it is probably quite good.

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22:33 <shevy> lol

22:34 <RubyPanther> Their ipv6 cert program is great

22:34 <shevy> wtf

22:34 <shevy> their karma sutra tutorial is even better

22:35 <RubyPanther> If a company like Apple can have fanboys, so can an internet backbone company.

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22:37 <RubyPanther> Wouldn't all sutras be karma sutras?

22:37 <WhiteHorse> Seriously I think there must be a link to those guys from the ruby language official site. It's just the fastest way of getting a taste of Ruby

22:37 <WhiteHorse> huh? karma sutra tutorial? :S

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22:39 <shevy> RubyPanther I am not sure about the word sutra in itself

22:39 <shevy> I think I heard it once in chinese ghost story... as a holy text, which banished the netherworld demon lord

22:39 <RubyPanther> a sutra is a book of religious teachings

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23:05 <RubyPanther> This thing is good, it notices if I use the wrong quote type or incorrect capitalization, but it ignores if I use different whitespace around , and ()

23:05 <RubyPanther> It is like Ruby the hard way, but interactive

23:07 <RubyPanther> but instead of str="I love Ruby"; str.gsub!(/I/,'You');print str I just said print(str="You love Ruby") and it said that was close enough. ;)

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23:54 <sethetter> Anyone know why a property on my model instance would be populated when returned from the app, but nil when inspected from the rpsec test? -- http://pastie.org/3013162

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