apeiros changed the topic of #ruby to: Ruby 2.1.5; 2.0.0-p598; 1.9.3-p551: http://ruby-lang.org || Paste >3 lines of text on http://gist.github.com || this channel is logged at http://irclog.whitequark.org, other public logging is prohibited
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<graft> the only time i've ever seen anyone assign an ipv6 address was in my kitchen when my roommates were trying to see if they could circumvent our router
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<graft> meanwhile my name resolution is like 50X slower because it keeps trying to resolve host names to ipv6 before it tries ipv4
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<jhass> that's only until ipv4 finally goes away
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<parabolize> Is that going to happen before the USA uses metric or after?
<jhass> who cares for the US
<graft> i still don't understand why you'd prioritize ipv6 lookups over ipv4 lookups by default
* parabolize cries
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<jhass> graft: shouldn't happen afaik unless you got a public prefix available
<jhass> or at least a v6 default route
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<jhass> if it is available it makes sense to prioritize, you get a good chance of bypassing some NATting
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<graft> yeah i still don't understand that whole thing
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<akurilin> quick question: what's the simplest way to run a bunch of shell commands in parallel in ruby?
<akurilin> I saw resqueue suggested as an optino
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<Radar> akurilin: Do you care that they're all ran at the same time?
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<Radar> akurilin: Or do you care that they're run at some point in the future?
<eam> system cmd + ?&
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<volty> cmds.map { |cmd| `#{cmd}` }
<eam> volty: that's not in parallel
<volty> no ?
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<eam> nope, each backtick will block waiting for the subprocess to complete so it can return the output as a String
<volty> threads then
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<volty> ?
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<eam> perhaps. mixing threads and forking is a recipe for sadness though
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<eam> cmds.each {|c| system c+?&} will do it if you don't care about collecting the results
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<eam> or popen and multiplex collection of the results
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<eam> I kinda hate thread per thing models
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<akurilin> Radar: I care about them being run in parallel: I'm processing a bunch of very large text files and there's no particular order to them.
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<akurilin> would be significantly faster if I didn't do them all one at a time
<Radar> akurilin: Then use Sidekiq and run jobs for each file
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<volty> cmds.map { |cmd| Thread.new { Thread.current[:output]= `#{cmd}`} }.map { |t| t.join; t[:output] }
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<Radar> dodgy.
<terrellt> And only works in JRuby/Rubinius
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<godd2> wonder if you could get away with .map(&:join).map(&:[], :output)
<terrellt> No, really, listen to Radar.
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<akurilin> cool stuff
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<volty> terrellt: what works only in JRub/Rubinius?
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<terrellt> Shelling out in threads might work, I'm not sure where MRI's GIL comes into play there.
<godd2> I think he means that it will only be executed in parallel in jruby/rubinius
<eam> shelling out without threads is fine so long as you don't block on them
<godd2> but it will stil be concurrent in mri
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<eam> if you want to limit the number in flight just multiplex on waitpid
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<terrellt> You could shell out and have it do your work, then report status when it's done through some sort of medium. Maybe redis. You could call it a piece of work. A job even.
<eam> you don't need redis
<volty> it executes in parallel here, enough to cmds = Array.new(10) { 'sleep 3' }
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<eam> suggesting sidekiq is absurd for such as simple task
<eam> dependencies on a database just to create a few subprocesses?
<godd2> volty it won't execute in parallel in MRI, but the thread scheduler will swap so often it will feel like it is
<volty> eam: i wanted to say the same
* terrellt shrugs
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<volty> godd2: i have it here after 3 seconds
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<godd2> volty that doesn't make it parallel, just concurrent
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<volty> but he wanted the shell processes in paralel, @godd2
<eam> tasks.each { |t| fork_exec_task(t); jobs += 1; loop { pid = waitpid WNOHANG; jobs -= 1 if pid; break if jobs < max_jobs } } # pseudo-ruby
<eam> I'm sure there's a gem somewhere that does this
<Radar> lol you people
<Radar> Just use Sidekiq... it's good for this kind of thing.
<eam> absurd
<volty> the processes do RUN in parallel
<godd2> volty I know, I'm just saying that it's not the case that it will only work on jruby/rubinius, since mri will schedule the threads well enough, even though it wont be in parallel
<eam> whenever I find some crappy script and it's like "lol also install redis to run me" I throw it away and generally use something not written in ruby
<benzrf> eam: lmao
<godd2> volty parallelism != concurrency
<Radar> eam: Can't tell if trolling
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<eam> not.
<Radar> Great.
<Radar> So why do you think Sidekiq is a "crappy script"?
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<Radar> When mperham has built an entire business of it.
<terrellt> Radar: He's saying he doesn't want a system dependency for a script.
<eam> Radar: it's not, it's a fine job queue
<eam> but I have seen for example <100 line irc bots that want you to install (sometimes multiple!) databases to run them
<eam> it's just crazy
<eam> if you need a distributed job queue, yeah sidekiq
<Radar> You want to debug threading code for running processes in parallel? Go ahead.
<Radar> Orrrr you could like Sidekiq deal with that crap for you;
<eam> Radar: the code I pasted you doesn't thread
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<eam> it multiplexes
<Radar> forking whatever
<eam> and yes, it's trivial to debug
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<eam> much easier than a distributed job queue
<Radar> What do you do when it breaks?
<eam> fix it?
<Radar> Where's the error logging?
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<volty> godd2: i do not get your point, maybe we lost the context. Isn't the OS that takes care of allocating resources for the subshell ?
<Radar> What happens when a process returns a non-zero exit code?
<Radar> Does it have exception notification service integration?
<eam> Radar: I have fixed bugs in distributed job systems like sidekiq/resque too. I'll take the simple option if I can
<volty> Radar: who needed error logging here ?
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<Radar> I'm sure your code is fine for a one-off, but I wouldn't use it in any kind of production system because it hasn't been tested... like Sidekiq consistently has.
<eam> if you want logging it is trivial to add
<eam> heh
<Radar> And yes, you are required to setup Redis to use it. Or you could use RedisToGo.
<eam> well you might be surprised
<sevenseacat> wheel called, someone is reinventing it again
<benzrf> ebins
<eam> distributed and single process job queues are two very different sized wheels
<volty> ppl ask simple questions and you come out with a whole encyclopedia (about all possible cases)
<eam> no need to write either
<rpag> i think the thread example is fine
<rpag> it doesn't need to be a solution for a web application
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<volty> and, btw 1) you have to study that gem, its commands, options, syntax etc 2) you have to believe it (the gem) does well what it supposed to do 3) i do not see a peer-review there (on gems) , as for the quality
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<volty> so: for simple problems ad-hoc personal solutions are enough
<Radar> volty: lol @ #3
<Radar> Here's your peer-review.
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<eam> sidekiq is fine. but so is something like forkmanager
<volty> but YOU, ALREADY, know that. The man that wants to process a few files in parallel 1) didn't know about that 2) anyway has to read the peer-review 3) has to study that gem
<Radar> volty: You're funny. I like you.
<volty> thx, honey :)
<Radar> There's no context about where these files are coming from, either.
<Radar> We're assuming quite a lot, all of us.
<Radar> akurilin: Where do the files come from?
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<volty> of course, the man wanted parallel bash and we gave it to him, the minimum on the unknown, sufficient :)
<eam> xargs :P
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<eam> scare factor around <20 line snippets of code though
<eam> smh
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<volty> now I would like an advice from you
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<volty> I was writing a spell-server, with a spell pipe. writing to aspell and reading its output
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<volty> but if I don't wait i receive blocking, if I wait it's too slow for the purpose (syntax highlighter
<volty> )
<volty> I did it with read_nonblock
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<volty> hints, suggestions, what else? should I rescue and retry at a rate of 0.05 seconds ?
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<eam> volty: I'm not clear what you've got, share code?
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<volty> >> 'url'
<eval-in__> volty => "url" (https://eval.in/223878)
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<volty> https://eval.in/223880 - few more comments
<eam> volty: you want to use IO.select() to poll
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<eam> and you don't need nonblocking read, you should stick to read or sysread though
<eam> if you're using gets you're probably deadlocking
<volty> thx, that's what I wanted to know, I'll study it
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<eam> select => wait until a fd is ready. read() will read only what's ready
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<volty> yes, return as soon as it is ready, but I hope there will be the whole answer
<volty> only testing can show though
<eam> loop { ready = select; buff += ready.read; break if done(buff) }
<eam> at a high level
<volty> eam there's no an eof condition
<eam> yeah it's just generalized pseudocode
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<eam> read will return "" if the fd evented as readable but doesn't read anything
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<volty> ops, ya ya, i can determine if everything is there because of the markup of aspell
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<volty> when it is complete, like '*\n.data\n$", the answer is complete
<volty> ok, thx
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<eam> often you're selecting on more than one fd and potentially returning (and looping over) multiple descriptors that event
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<volty> yes , I see from the docs
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<volty> I prefer to write this kind of things with QProcess (Qt), that fires signals on data_ready, but cannot be used because of the "real-time" syntax-highlighter
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<eam> not familiar with qt
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<volty> not about you, because everybody specializes in what he needs and thinks is better, but I find that it is a pity that too few rubyists use it
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<volty> Hoping that some of you have qtruby installed, https://eval.in/223881
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<volty> the problem is that the app segfaults after execution (presumably on Qt::Application cleanup) when nokogiri is required
<volty> I want to make sure that it doesn't happen only here.
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<gebbione> hi all
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<gebbione> i am installing mina and it complaints that i need a ruby =>1.9.3 but my version is 2.1.4
<gebbione> i have installed 2.1.4 with rvm
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<gebbione> do i need to tell gems to wake up and use the right version of ruby?
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<sevenseacat> are you actually using 2.1.4?
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<gebbione> ruby -v -> ruby 2.1.4p265 (2014-10-27 revision 48166) [x86_64-linux]
<sevenseacat> so gist the full error?
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<sevenseacat> because mina has no ruby version dependency
<gebbione> active support apparently does
<sevenseacat> so thats for installing rails, not mina
<gebbione> before installing mina i saw in a tutorial i needed bundler and rails
<gebbione> is that wrong?
<sevenseacat> err
<sevenseacat> seems pretty unrelated
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<gebbione> ok i can try removing that step and just run the mina install
<gebbione> but i find weird anyway that it didnt detect the latest version
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<sevenseacat> i dont, given the ruby in `ruby -v` is probably a different version than your vagrant version
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<volty> @homo trollens: and it's not '=>' but '>='
<gebbione> sevenseacat, infact it looks like gems is using 1.8
<gebbione> so whats the point of rvm :/
<sevenseacat> well is your vagrant install using rvm? it doesnt look like it
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<sevenseacat> your local machine might be
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<gebbione> this is all in the vagrant machine
<sevenseacat> ok, so why are you not using your rvm ruby there
<sevenseacat> why are you using /opt/something else instead
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<gebbione> right i am using the wrong gem
<sevenseacat> indeed.
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<gebbione> now i get this rubbish from puppet http://paste.ubuntu.com/9110236/
<sevenseacat> have you installed puppet?
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<sevenseacat> for your ruby 1.8
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<gebbione> mh not sure what you mean, i just run the provisioner, i havent done much manually with ruby1.8 on that vm
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<sevenseacat> well i have no idea what you are doing or trying to do, im just reading the error messages.
<sevenseacat> its trying to run puppet for your ruby 1.8 install, and it says puppet is not installed.
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<eam> if I have an IO object that's actually a tcp server (or say, just a fileno) how do I instantiate it as a TCPServer?
<eam> ruby's OO structure is blocking me, I can't call #accept on an IO
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<eam> is there a way to modify the class of an object?
<pontiki> beside monkeypatching/extending?
<eam> yeaaah
<eam> I can easily fix this by rewriting the thing that produces the IO I mean, but ...
<eam> goddamnit I just want to call #accept on arbitrary descriptors, why is that impossible?
<pontiki> i *thought* TCPServer would take an IO, honestly
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<eam> this is why OO modeling of procedural APIs is a bad thing
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<eam> aha! Socket.sysaccept
<eam> takes a fileno
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<eam> I wish there was just a module with a normal 1:1 mapping to the sockets api
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<eam> sock = Socket.for_fd sock_as_io.fileno # this does it
<eam> for_fd is a weird name
<eam> for a constructor
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<gebbione> now i get this error when installing rvm
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<sevenseacat> i thought you already were using rvm
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<gebbione> sevenseacat, i destroyed the vm and rebuilt it and got this error
<sevenseacat> seems like a good way to fix a problem
<gebbione> i didnt have this problem before
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<sevenseacat> you appear to have a problem with your internet connection, because those files do exist
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<gebbione> the error is not about connectivity is about writing files
<gebbione> but with sudo there is no reason why that should happen
<sevenseacat> no its not
<sevenseacat> its about reading remote files
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<gebbione> if i just run curl i get the file spit out in the shell stdout
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<eam> gebbione: why are you sudoing curl?
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<gebbione> yep i realise there is no need now, but bash needs it
<eam> you aren't sudoing your bash script
<sevenseacat> bash does, curl doesnt
<eam> curl | sudo bash
<gebbione> wasnt
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<eam> obligatory sudo is terrible
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<sevenseacat> sudo all of the thingz!!!
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<diegoviola> you don't want to run everything as root
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<gebbione> not on prod
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<gebbione> on a super trashable vm with no public scope who cares
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<sevenseacat> well if you have no idea what you're doing, you should probably care :)
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<sevenseacat> so you can learn what to do and what not to do
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<eam> dermothaughey: you don't want to use sudo to elevate privs either
<eam> diegoviola: even ^^
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<eam> it's a pretty crappy mechanism
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<diegoviola> I use su
<eam> I use sshd
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<eam> and I don't have any setuid binaries at all
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<jhass> so you allow remote root login? mmh
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<mugiwara> =/ not happy... been trying to learn rails. I'm working through the codecademy series (after 100%ing the ruby tutorials), and I also have sublime text 3 and my terminal open. Basically any task I do in codecademy, I also do in my real rails environment.
<mugiwara> I was having a fantastic time at the start, because I finally grasped the concept of MVC and was able to setup the Pages controller, page routes, and views, but once we started going over Models and index/show/edit, etc, its getting very complicated and I'm losing motivation
<sevenseacat> yes, there is a learning curve to rails
<mugiwara> I need help, motivation, encouragement. Anything you guys can provide
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<benzrf> mugiwara: learn haskell instead !
<benzrf> [i kid]
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<mugiwara> The first controller was for website pages, and we would use a method to send to route and load a page (using a view of course). But then we created a new controller for product categories... I have no idea why I would ever want a separate page called website.com/categories/index to show all categories, or /edit to edit a particular category.. Websites just don't work like that
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<mugiwara> So I guess I'm just not a fan of the direction the tutorial is going. Maybe it would make sense if I continue it, but I feel like now that I understand the concept of MVC, the michael hartl tutorial may not be so intimidating this time around
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<jhass> (#RubyOnRails)
<godd2> yay for havenwood's lightning talk at rubyconf
<mugiwara> jhass: getting errors. "#rubyonrails Cannot join channel (+r) - you need to be identified with services
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<jhass> mugiwara: MVC is the pattern used to structure your code (and actually not an architecture pattern, but let's leave this aside), the pattern used there to structure your URLs is called REST
<jhass> and to join the channel: /msg NickServ help
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<mugiwara> jhass: thanks for the help dude
<mugiwara> jhass: I believe that sticking with this will be worth it. I don't want to give up at the first sign of real confusion. This is uncharted territory for me ...
<godd2> #ruby, the number one place to learn how to get the Nickserv help menu
<jhass> sure, keep going
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<mugiwara> godd2: sorry, i'm new and dont ever use IRC
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<godd2> mugiwara lol don't worry, you're in good company
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<Radar> mugiwara: may I PM?
<mugiwara> Radar: sure
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<Radar> thank you
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<IronKoopa> Hi guys, is there a rails-specific channel on freenode?
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<sevenseacat> #rubyonrails
<cleopatra> #RubyOnRails
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<eam> jhass: of course, why not allow remote root login?
<eam> better than copying the root password out to a remote host
<eam> (which sudo typically requires)
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<zdaniel> hey all, so I want to create a CLI for an application that I'm working on, but I don't want it to consists of running the file with arguments. I want running the file to open (essentially) a custom irb. Are there any gems that you guys know of to do that?
<zdaniel> this http://www.sitepoint.com/ruby-command-line-interface-gems/ article has been helpful, but doesn't really have what I'm looking for
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<i8igmac> a simple regex help plz...
<i8igmac> [0-9999]
<i8igmac> could be a number like 200 Or 2000
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<i8igmac> reg ex is a pain in my ass
<zdaniel> something like \d{1,4}
<zdaniel> would be 1 to 4 digits
<i8igmac> almost
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<i8igmac> its a ip and port
<i8igmac> 173.57.99.161</td><td>37160</td>
<i8igmac> 173.57.99.161</td><td>37160</td>
<i8igmac> 24.172.57.196</td><td>80</td>
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<i8igmac> i thought it would be as simple as [0-9999]
<i8igmac> i thought it would be as simple as [0-99999]
<zdaniel> you couldn't run that on everything
<zdaniel> I'm assuming you are just running the regex on teh port?
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<i8igmac> \b(?:[0-9]{1,3}\.){3}[0-9]{1,3}\b
<i8igmac> that is my ip regex
<i8igmac> im trying to also grab the port
<i8igmac> im still new to regex and trying to understand
<i8igmac> the basics
<zdaniel> no problem
<zdaniel> well, have you used an online tester yet?
<zdaniel> the regex matches on there for me
<i8igmac> it could be a number 0 threw 10,000 or something
<zdaniel> are you just testing for a match, for validation?
<i8igmac> yes
<zdaniel> so \b(?:[0-9]{1,3}\.){3}[0-9]{1,5}\b should work.
<zdaniel> assuming there are no commas.
<zdaniel> oh wait
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<zdaniel> (?:[0-9]{1,3}\.){3}.+[0-9]{1,3}
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<zdaniel> it wasn't taking into account the cruft in the middle
<zdaniel> is there not a way to have that cleaned out before you run a regex on it?
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<zdaniel> if you could do that, I bet there are a lot better validation tools for that sort of thing.
<i8igmac> it could with gsub i guess,
<i8igmac> im trying to understand the basics of regex
<i8igmac> [0-9]{1,3}
<zdaniel> that is 1 to 3 digits
<zdaniel> also could be \d{1,3}
<zdaniel> the issue is that you have to take into account the html between the IP and the port
<zdaniel> hence putting in a .+
<i8igmac> zero threw nine 3 digs, maybe 3 digits long max
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<zdaniel> it also has to be 1 digit minimum.
<zenspider> why are you doing regexps at all?
<zdaniel> there is an IP addr class.
<zdaniel> that can validate formats.
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<i8igmac> im always trying to grep threw html response's
<zenspider> that usually means you're doing it wrong.
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<zenspider> "through"
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<i8igmac> so this is the answer to my query..
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<i8igmac> \d{1,6}
<i8igmac> well, maybe 6 is to high for ports's
<i8igmac> im trying to understand the basics ,-)
<i8igmac> 1 digit threw 6 digit
<zdaniel> ports go 0-65,535
<i8igmac> true
<i8igmac> 55560 or something
<zenspider> through
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<i8igmac> \d{1,5}
<zdaniel> the reason that your regex does not work is because of the <td> stuff in the middle
<i8igmac> could be 0-99999
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<i8igmac> true
<zdaniel> you haven't added anything to match that in your regex
<i8igmac> you are correct
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<i8igmac> data.scan(/\b(?:[0-9]{1,3}\.){3}[0-9]{1,3}\b.........\d{1,6}/)
<i8igmac> that is what i have
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<zdaniel> well now.
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<i8igmac> for this instance, the above works
<zdaniel> yeah. that .......... is not the right way to do that.
<i8igmac> ........=> <\td><td\>
<zdaniel> sure.
<i8igmac> what might you suggest
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<i8igmac> gsub ?
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<agent_white> Evenin'
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<zdaniel> .{10} would at least make it less strange
<zdaniel> but yeah I would definitely recommend removing the html before pulling out the match data
<zdaniel> with gsub most likely.
<zdaniel> but my real question is what are you doing that is providing it to you that way?
<zdaniel> what sort of input gives you that string?
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<i8igmac> its ahttp response
<i8igmac> http
<i8igmac> socket's
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<i8igmac> i should use a html lib or something?
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<i8igmac> im always soring threw html web response's
<zdaniel> theres gotta be something that will just do that for you
<zdaniel> I know there is at least.
<i8igmac> libs, documentation frustrates me more
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<zenspider> might be a literacy thing
<i8igmac> but yes, if i can get past the frustration
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<i8igmac> is that like "illiterate"
<i8igmac> like retarded
<i8igmac> lol
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<i8igmac> ,-)
<zdaniel> woah bud. lets not use the r word.
<i8igmac> i feel stupid lol
<i8igmac> good job
<zdaniel> anyway. That gem is almost definitely the best way to parse and handle an html response.
<zdaniel> its pretty widely used, from what I know.
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<sevenseacat> very widely used.
<i8igmac> i have come across this gem
<i8igmac> i avoid gems, i need to start looking into these things
<zdaniel> you wut no
<zdaniel> **wut now
<zdaniel> avoid gems?
<zenspider> NIH
<sevenseacat> lol
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<i8igmac> i struggle
<i8igmac> lol
<sevenseacat> reinvent *all of the wheels*
<i8igmac> YES
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<zdaniel> haha
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<zdaniel> gems are *litrally*(ann perkins) code other people wrote just for you.
<i8igmac> for EVERY one
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<zdaniel> the first step to approaching almost any problem in ruby is to try and find a gem.
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<i8igmac> so for instance, Nokogiri...
<zdaniel> I had a project that was estimated for me at 4 days of work to do alone. I found a gem, and finished just after lunch. Now I don't have to show up for work for 3 days.
<zdaniel> win
<i8igmac> i guess i strugle with documentation
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<zdaniel> lets address that then.
<zdaniel> because documentation is meant to remove struggling.
<i8igmac> <tr><td>xxx.xxx.xxx</td><td>xxxx</td>
<i8igmac> the gem that is widely used
<i8igmac> Nokigiri
<zdaniel> yeah
<i8igmac> should pull data based on html tags
<zdaniel> yep
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<i8igmac> lol
<i8igmac> Nokogiri.XML('<td>')
<zdaniel> well
<zdaniel> this isn't XML
<zdaniel> so not that.
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<zdaniel> have you looked at stack overflow?
<pipework> zdaniel: Take the time to learn how the gem works then.
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<zdaniel> pipework: did I say something incorrect?
<lampd1> i think pipework may have gotten you and i8igmac mixed up
<pipework> zdaniel: No, just that if you finished work early, you should treat yourself to learning how the gem that solved your problem works.
<lampd1> ;)
<lampd1> ah
<zdaniel> oh I see what you mean
<lampd1> regarding that
<pipework> [21:15:01] <zdaniel> I had a project that was estimated for me at 4 days of work to do alone. I found a gem, and finished just after lunch. Now I don't have to show up for work for 3 days.
<pipework> [21:15:03] <zdaniel> win
<lampd1> i was confused too :P
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<i8igmac> i see
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<zdaniel> I won't really be skipping work for 3 days.
<zdaniel> theres always more to do lol
<lampd1> reading reddit for 3 days moar like it
<zdaniel> iqigmac
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<i8igmac> a high five is necessary
<zdaniel> iqigmac: so what has the docs yielded?
<zdaniel> **have
<i8igmac> Nokogiri.html
<zdaniel> I don't want to tell you, since you mentioned wanting to get better at reading docs, but I'm looking at Nokogiri::HTML
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<zdaniel> making a Nokogir document with something like html_doc = Nokogiri::HTML("<html><body><h1>Mr. Belvedere Fan Club</h1></body></html>")
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<zdaniel> I think the standard process would be to just parse the entire response as a nokogiri document.
<zdaniel> then work with that object from there.
<zdaniel> this http://www.nokogiri.org/tutorials/parsing_an_html_xml_document.html has all the stuff (links to) that you need.
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<i8igmac> i do need to spend some spare time reading the documentation on this gem
<i8igmac> read documentation or... build a octagon wheek
<i8igmac> wheel
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<zdaniel> I would wager that being able to read documentation is more important to being a programmer than even being able to program.
<i8igmac> well, my secret is... im a basement ruby hobbyist
<i8igmac> my hobby is ruby... its stuck my my brain all day long at work
<i8igmac> i think about ruby all day long\
<zdaniel> you should get really good at it and then get a job doing it.
<zdaniel> thats what I did.
<zdaniel> wait, that sounded horrible
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<zdaniel> let me rephrase
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<zdaniel> you should get good enough at it to get a job doing it
<zdaniel> and then get a job doing it.
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<i8igmac> i make 20 per hr currently
<i8igmac> i cant give that up
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<zdaniel> are you under the impression that programming is not a lucrative career?
<i8igmac> im sure computer networking/programing have higher potential
<zenspider> ruby is stuck in your brain all day long and you avoid all gems?? wtf
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<zdaniel> haha
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<zenspider> [ ] Plays well with others
<zenspider> [X] Does not play well with others
<i8igmac> its all about documentation
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<i8igmac> seems like there is a big gap
<zenspider> no it's not. that's pathological
<zdaniel> a big gap in what?
<sevenseacat> lol
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<i8igmac> the problems i seek to solve and the rest of the functionality of the gem
<sevenseacat> and youre convinced this is a problem with the gem?
<i8igmac> no
<zdaniel> so it does...too much stuff?
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<sevenseacat> because the documentation doesnt write the code to cover your exact use case?
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<zdaniel> dear god we will make millions.
<pipework> I mean, as a hobbyist, there's nothing wrong with spending the time to build things yourself if that's what makes you happy.
<i8igmac> lol
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<i8igmac> i feel that its quicker to build my own function then follow the documentation of a gem... BUT the end resault is ugly and Wont work well with others
<zdaniel> we should make documentation whereby you put in your existing code that tries to use said gem, and it tells you which part of the documentation pertains to you.
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<zdaniel> its definitely not quicker to build your own functino than to learn and use a gem.
<Areessell> It's definitely quicker to use a gem but more fun to roll your own
<pipework> Maybe speed isn't his oncern?
<pipework> concern too.
<i8igmac> you guys are funny lol
<i8igmac> finish each others sentence
<zdaniel> I'm not telling him what to do, he just said that i feel that its quicker to build my own function then follow the │ adeponte
<zdaniel> | documentation of a gem
<zdaniel> Y
<zdaniel> ergh
<pipework> fail
<Areessell> Are you seizing?
<zdaniel> totally.
<zdaniel> can't answer. epilepsy.
<i8igmac> maybe it is literacy
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<i8igmac> some times i solve impossible in mathematic quiz at a collage, as i sweep up trash
<i8igmac> lol that didnt come out right
<zdaniel> but you'll never have a chance to make that sentence english.
<Areessell> You solve the impossible? What are you doing here? Advance the fields of mathmatics and science.
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<i8igmac> for y in time..date = X
<i8igmac> i love you girls
<i8igmac> ,-)
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<zdaniel> [*unanswer_science_questions].map(&:answer)
<pontiki> sounds like the plot to good will hunting
<sevenseacat> pontiki: gee really :P
<i8igmac> i love you guys lol
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<pontiki> i just got here
<i8igmac> is it the plot to good will hunting or step brothers
<Areessell> zdaniel: Why explode the array into a new instance? =p
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<zdaniel> Areessell, well, we don't want to turn a list of questions into a list of answers, we probably want the questions to stick around.
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<zdaniel> if we just get the answer, then how in the world will we know what question '42' is the answer to?
<Areessell> I thought map was non-destrustive? answered_science_questions = unanswered_science_questions.collect(&:answer)
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<zdaniel> collect returns a new array
<zdaniel> we would want a !
<zdaniel> map! or collect!
<Areessell> Right, so why explode?
<zdaniel> aren't they just aliases anyway?
<Areessell> Yep
<zdaniel> ohhhh
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<zdaniel> I wasn't catching your meaning.
<Areessell> You'd be initializing in memory a whole new array of unanswered questions
<zdaniel> no reason to do that.
<zdaniel> I just wanted to make it obvious that was an array.
<Areessell> I'm assuming that would be alot of RAM xd
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<zdaniel> I dunno, I'm using the IRC chat client on deep_thought.
<zdaniel> probably enough ram.
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<pontiki> *sigh*
<zdaniel> oh yeah, we left you hanging
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<Areessell> I was using Lingo which is an OSX IRC client for a few days. The damn thing would memory leak and bloat up to over 4GB of RAM when closing a convo or channel O_o Switched to irssi
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<zenspider> Areessell: I realize we're mentarbating here, but don't assume it is an array. Could just be array-like.
<blacknicker> Permission denied (publickey). <----------- i tried everything to fix this problem how can i fix it?
<sevenseacat> how vague
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<blacknicker> i'm trying to push to bitbucket
<zdaniel> technically it just has to respond to explode
<Areessell> Riiight: unanswered_questions.to_a.map(&:answer)
<zdaniel> or to_a
<sevenseacat> then add your ssh key to bitbucket
<zenspider> yup. preferable
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<zdaniel> actually splat just calls to_a
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<Areessell> Didn't know that, just tested it out. Good to know
<zdaniel> thats cool, reading about overriding unary operators
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<Areessell> I've been programming Ruby for a decade and professionally for about 4 years now. I've never needed to override or right my own unary ops.
<Areessell> Played with them plenty of times.
<i8igmac> whats unary ops
<i8igmac> its a gem?
<Areessell> -1
<sevenseacat> no
<zenspider> write
<Areessell> The subtraction operator before the 1 is actually a method on the Integer class
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<zdaniel> a good example was shown to me like this.
<zdaniel> 2 + 2
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<zenspider> no it isn't. that is lexed as a literal
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<zenspider> -a is another story
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<Areessell> Hm guess you're right.
<zdaniel> what?
<zdaniel> My point was that 2 + 2 is syntactic sugar for 2.+(2)
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<zenspider> -1 is just -1. -a is a method call to #-@
<Areessell> zdaniel: zenspider was talking to me and I was responding =p
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<zdaniel> oh I see what you are saying
<zdaniel> word up
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<zdaniel> sort of random, but I found out today that there is no equivalent of #map for a hash
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<zdaniel> I would expect to be able to say hash.map {|key, value| blah}
<zdaniel> well....thats werid.
<Areessell> {}.map => #<Enumerator: {}:map>
<zdaniel> **wierd. I guess how would it know where to put the key value.
<zdaniel> I tried it today and it didn't let me.
<zdaniel> trying again
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<Areessell> { hello: 'world' }.map { |key, value| [key, value] } => [[:hello, "world"]]
<zenspider> map is in Enumerable, hashes are enumerable... so... hashes are mortal, or something.
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<zdaniel> watttttt
<zdaniel> this ruined so much of my day. is this new to 2.x?
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<Areessell> 1.9, I think?
<zdaniel> so this is what I really wanted before
<zdaniel> Hash[x.map {|key, value| [key, value]}]
<zdaniel> obviously doing things with the keys and values in there
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<zdaniel> I think I would prefer calling hash explicitly on the return array so I don't have to refine Hash everywhere I want to do this.
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<Areessell> I don't usually extend the standard library as well. I stick to helper methods.
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<Areessell> But the idea is there. Map a hash into another one.
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<zdaniel> I think it makes sense for map to return an array in all cases.
<zdaniel> like....it would require special syntax to do otherwise, without adding a separate method.
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<zdaniel> also, I just read further in that article, and the guy does literally what I did up there.
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<jdubbs> LIST
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<agent_white> TSIL
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<Areessell> Anyone know where to download dictionaries for human languages in sql, xml, etc?
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<shevy> Areessell nope, no idea. I started to write my own german-to-english one but it has only like 2000 words
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<Areessell> The internet is so meta.. I looked in a database of open databases to find the database I needed
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<blacknicker> The authenticity of host 'bitbucket.org (131.103.20.168)' can't be established.
<blacknicker> do you know what this error is?
<Areessell> You still havnt uploaded your public key to bitbucket, it seems.
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<turtlejim> I am just starting to learn ruby, does rails have any major benefits?
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<zenspider> yes
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<zenspider> exactly 7 of them
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<zenspider> and 7 is a good number... so you should do that
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<Abhijit> are we talking about the rings? 7 off them?
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<zenspider> exactly
<turtlejim> what about the one ring to rule them all?
<zenspider> that's the middle ring that coats the candy center
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<Abhijit> :-)
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<teotwaki> turtlejim: I'd consider rails and ruby to be fairly distinct topics.
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<teotwaki> turtlejim: you can't really say that "rails has major benefits over ruby", they're two completely different things. One is a web-oriented framework, the other is a language.
<workmad3> teotwaki: how about 'If you're developing web applications, using Rails provides major benefits over using plain Ruby and building everything from scratch'? :P
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<teotwaki> depending on your use case
<workmad3> heh
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<teotwaki> if you only want to print "." on GET requests, Rails might be overkill.
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<workmad3> teotwaki: I'd be dubious about calling that a web app, but ok, I'll stop being a facetious pedant now ;)
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<maahsa> Hello
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<maahsa> Is there any clever schemes to make sure your ruby script calls specific versions of system commands?
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<maahsa> i.e. gnuplot 4.2 and not gnuplot 3.9
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<workmad3> maahsa: provide the full path to the version you want to run?
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<maahsa> workmad3: and if it should be portable :o( ?
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<maahsa> relying on $PATH is bad
<workmad3> maahsa: afaik, there isn't a portable way of specifying specific versions
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<workmad3> maahsa: hell, half the package managers out there don't let you install 2 versions of the same package side-by-side
<maahsa> workmad3: and no convention that all commands have a --version option that outputs something sane :o(
<workmad3> maahsa: some use --version, some only use -v, some -version, some just a first 'version' command...
<maahsa> workmad3: and -vv = very version ?
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<maahsa> workmad3: so what about for a particular command (e.g gnuplot) get the md5sum and look in some database ...
<maahsa> if there was such a database
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<workmad3> maahsa: what if it's the right version, but hand compiled with some custom archictecture-specific optimisations? ;)
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<maahsa> workmad3: ew :o(
* maahsa failed getting any result googling for 85f3b661e7e9490e8eb67cd89ff6486f
<workmad3> hehe
<maahsa> workmad3: I sort of expected a hit to homebrew's gnuplot
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<workmad3> maahsa: hehe
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<maahsa> so options are: 1) run --version or such and deal with it. 2) use full path (if it helps). 3) setup symlinks with version to commands
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<maahsa> I hate them all.
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<workmad3> maahsa: 4) check in a variety of places and give a command line option to point to a specific gnuplot that overrides the check
<maahsa> workmad3: I hate that as well :o)
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<workmad3> maahsa: I guessed you would :P
<maahsa> no wonder why there is such a big hype about docker
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<workmad3> maahsa: option 5) try to run with whatever gnuplot is available and throw an error if it doesn't work, informing the user that they should make sure gnuplot 3.9 is available and pass it to the command with --gnuplot /path/to/bin
<workmad3> maahsa: or option 6) create an omnibus installation of your app that includes embedded versions of all the shit you need, and only look at stuff inside your embedded omnibus install
<maahsa> workmad3: actually, what I am after is not user interaction, but that for some analysis the versions of all uses software is recorded in the logs so the analysis may be reproduced some day.
<maahsa> used*
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<Oog> best way to find memory leaks?
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<workmad3> maahsa: I'm not sure there's a good way to do that without creating an archive of all the software and related libraries you're using (potentially all the way down to the kernel), fingerprinting the hardware and then recording all of that
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<workmad3> maahsa: after all, what do you do if you've got something like an original Pentium with its dodgy arithmetic... you'd need to keep track that an analysis was run on that particular hardware to reproduce the results
<maahsa> workmad3: I wonder if there is a compromise that woun't drive you nuts.
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<maahsa> workmad3: I would skip recording hardware details.
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<workmad3> maahsa: so you'd have no way to reproduce that particular run from the details you've stored...
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<ddv> Oog: You could run your app on jruby and use some of the profiler tools available for Java
<maahsa> workmad3: maybe I should just walk away from this stinker and find something else to do :o)
<workmad3> maahsa: and hell, I'd guess you'd need to be sure that operations being pipelined in different orders wouldn't impact the results too (dunno what it's an analysis of, so couldn't say whether that's important or not)... if it is, you're pretty much screwed anyway though :)
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<maahsa> workmad3: well, I am recording the commands used and the order already. Just not the versions.
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<workmad3> maahsa: I'm talking about non-deterministic CPU pipelining...
<maahsa> workmad3: oh
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<workmad3> maahsa: i.e. the order that operations are actually being processed by the CPU
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<ddv> Oog: visualvm will even show you nice graphs of probable locations to look at
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<workmad3> maahsa: it's all really dependent on how far down the rabbit hole of 'exact reproduction' you want to go, tbh
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<Oog> ddv: how is it to get jruby working on osx...
<Oog> and will it work with rails/rvm?
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<Oog> how can there be memory leaks if it is garbage collected
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<maahsa> workmad3: for now I just wanted version numbers on stuff like gnuplot - but that is non-trivial as it happens
<canton7> collections of objects which keep growing instead of being flushed is a simple example
<txdv> Oog: if you don't release an object by deferencing it, the gc can't collect it
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<Oog> i have to dreference stuff like in c/c++ - like free/delete?
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<workmad3> Oog: no, you just need to be sure that nothing is holding a reference before the GC will consider cleaning it up
<workmad3> Oog: the GC isn't going to free something from memory if it's still in use, after all... otherwise the GC would be useluss
<canton7> @field = Foo.new # that Foo instance won't be collected until @field is set to something else, or the class owning @field is released
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<Oog> hmm
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<canton7> a slightly more realistic example: imagine you've got an event aggregator, which takes subscribers and publishes events to them. therefore it has to hold a reference to every subscriber. if a subscribe doesn't unsubscribe itself, it will also be referenced by the event aggregator, and therefore will never be released
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<canton7> s/also/always/
<Oog> its weird because this is a delayed_job queue so it processes jobs
<Oog> they get processed and go away
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<Oog> so jruby i the best way to find memory leaks?
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<canton7> confused... are you asking whether jruby is a good way to find memory leaks?
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<Oog> yes
<Oog> easiest way on osx
<canton7> jruby is an implementation of ruby. it won't help you find leaks any better than any other ruby implementation...
<canton7> unless you're planning on hooking it up to a jvm-only profiler
<Oog> oh someone recommended it but id prefer to not use it and just use ruby that i already have
<maahsa> what about ruby-prof?
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<canton7> no....
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<jhass> eam: eh, I allow neither, password auth nor remote root login
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<blacknicker> hi guys i am trying to write an iterator that iterates and prints each number until it puts 10 multiples
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<blacknicker> what am i doing wrong?
<blacknicker> pastie.org/9732055
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<jhass> blacknicker: what error message do you get?
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<blacknicker> no error messages jhass
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<jhass> I don't think you shared your actual code then.
<jhass> >> foo = "1\n"; foo do end
<eval-in__> jhass => undefined method `foo' for main:Object (NoMethodError) ... (https://eval.in/223986)
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<jhass> (v.respond_to?(:empty?) && v.empty?)
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<jhass> in rails/with AS if v.blank? might be a consideration
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<arup_r> jhass: That's the sad point.. I am not using Rails
<workmad3> arup_r: hsh.delete_if{|k, v| v.nil? || v == "" || (v.respond_to?(:empty?) && v.empty?)}
<jhass> why the == "" ?
<workmad3> jhass: because I forgot that string responds to empty? :P
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<jhass> :P
<arup_r> jhass: Thanks
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<blacknicker> jhass: what math would you recommend i take? for programming?
<blacknicker> number = gets number[1..10].each { |number, i| number * i }
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<blacknicker> whoops
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<jhass> basic programming requires no math, it at most comes handy in some situation leading to cleaner or more efficient solutions
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<workmad3> blacknicker: I'd recommend boolean logic (sometimes also called propositional logic)
<blacknicker> workmad3: i am having a terrible time with algorithms
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<blacknicker> i regret not studying math in school
<blacknicker> now i have a super awesome idea that i want to share with the world and i don't have the technical requirements to make it happen
<workmad3> blacknicker: I did maths all the way up to A-level (UK school system) and even had some courses at uni... about the only stuff I use on a daily basis from any of that in programming is logic ;)
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<blacknicker> workmad3: i think i lack logic
<blacknicker> how can i get it?
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<workmad3> blacknicker: just paypal me $10000, and I'll ensure delivery of a logic braindump in 50-100 years...
<blacknicker> lol
<blacknicker> this is my second attempt at making a program that outputs 10 multiples of an inputted number
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<blacknicker> nothing is working
<workmad3> blacknicker: most programming is really reading docs, problem solving and a fair amount of trial and error
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<blacknicker> i'm trying really hard but i'm not getting anywhere
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<wasamasa> chances are your "super awesome idea" isn't that unique or new
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<workmad3> wasamasa: h8er :P
<workmad3> wasamasa: but accurate ;)
<wasamasa> or sucks in its implementation because it's actually been tried before
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<blacknicker> wasamasa: it's not new, my idea takes what we have now and what we aren't doing right now with the technology we have
<blacknicker> i'm surprised nobody is doing it
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<wasamasa> also, somehow these ideas seem to be always super-secret
<blacknicker> i'm sure people have thought about it but thinking and doing are two different things
<blacknicker> wasamasa: you don't know how business works
<wasamasa> I've got threatened with lawyer action the few times I've been told those
<workmad3> blacknicker: there's also a lot of this:
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<wasamasa> blacknicker: slowly
<wasamasa> workmad3: oh yes, that, too
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<wasamasa> workmad3: worse is that sometimes you only know it's nintendohard after getting deep enough into it
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<workmad3> wasamasa: let's not forget that what's difficult is constantly changing... go back 10 years and the 'Easy GIS lookup' would have been 'Give me a large dev team and pay for access to some stupidly expensive mapping database' most likley
<blacknicker> wasamasa: all good ideas are secret, companies wouldn't bother keeping secrets if it talking about it didn't mean anything
<wasamasa> blacknicker: nope
<wasamasa> blacknicker: still a lot of clueless people around in the higher-up positions
<blacknicker> just because they don't want to do what you're doing doesn't make them clueless
<blacknicker> you're comming across as arrogant and it's quite sad
<wasamasa> workmad3: then, there was some news recently about a team that claimed to have something working that can discern surprisingly much of a photo programmatically
<workmad3> anyway... can we stop arguing about whether there's any real value in an 'idea' that has no implementation please? It's not an argument that tends to go anywhere, especially on IRC :)
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<blacknicker> workmad3: you already restated what i just said a few minutes before, if you could only read :)
<wasamasa> of course, let's help this person in the most sympathetic way with his beginner ruby code
<wasamasa> then he might go forward with revolutionizing the world
<workmad3> wasamasa: and if not (I agree, the most likely situation) at least there's another person in the world who understands programming and its constraints ;)
<workmad3> wasamasa: so it's win-win!
<wasamasa> workmad3: yup, we need moar problem solvers
<wasamasa> blacknicker: anyhow, how exactly are these lines going to work?
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<blacknicker> workmad3: well, you would be surprised the people i know, but that's irrelevant... but they will help me once i show them an interesting prototype
<workmad3> blacknicker: btw, insulting someone's ability to read is not exactly a good idea... especially when you didn't actually say anything close to my statement :P
<blacknicker> wasamasa: what do you mean?
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<wasamasa> blacknicker: you need to be able to explain the meaning of your code to both humans (at least yourself) and computers
<wasamasa> blacknicker: neither me nor pry get the second line
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<blacknicker> wasamasa: well i would like for the program to output the first 10 multiples of a number that has been inputted
<workmad3> oh wow, now we're onto anonymous name-dropping! awesome :D
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<wasamasa> blacknicker: first of all, what gets reads in is a *string*
<wasamasa> blacknicker: you might want to change that
<wasamasa> >> (1..10).map { |n| 5*n }
<eval-in__> wasamasa => [5, 10, 15, 20, 25, 30, 35, 40, 45, 50] (https://eval.in/223995)
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<jhass> blacknicker: what tutorial do you follow?
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<wasamasa> workmad3: namedropping is a critical part of establishing notoriety
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<blacknicker> wasamasa: i come from a rich family and i've been spoiled i'm like the failure of the family and i don't want to be a failure anymore
<wasamasa> blacknicker: so you turn to CS?
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<blacknicker> the internet has made the most billionaires and multimillionaires than any other industry
<workmad3> blacknicker: great... welcome to the meritocracy of programming
<blacknicker> i want to prove myself to everyone
<blacknicker> but it's not just for money, i want to learn to make cool stuff
<wasamasa> the number of people who made money with it is still relatively low compared to the number of people in it
<wasamasa> survivorship bias, yo
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<jhass> blacknicker: then let's drop the meta-meta stuff and answer my meta question
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<blacknicker> wasamasa: i think that's because they don't have a financial backer for their projects
* wasamasa giggles
<blacknicker> i'm the opposite, i have money, but i lack the skill
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<wasamasa> you're free to donate money to organisations like the EFF
<blacknicker> jhass: i am following a few tutorials, one from codecademy which i don't really like, and one book and i purchased a course
<blacknicker> from the pragmatic studio
<jhass> which of these gave you that task?
<wasamasa> or FSF or any linux distro or whatever
<blacknicker> none
<jhass> then why are you doing it?
<blacknicker> jhass: i just thought about doing it
<blacknicker> for practice
<wasamasa> whatsapp for instance donated to freebsd
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<jhass> sorry to inform you, but that code is lacking some very fundamental understandings
<jhass> you should pursue one of your courses for now
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<blacknicker> what am i lacking?
<jhass> they usually have some kind didactic, you know, to actually teach you stuff
<wasamasa> blacknicker: syntax, types, control structures, ...
<jhass> ^
<wasamasa> it's surprising just how much a seemingly simple example requires you to know
<blacknicker> what are the three dots?
<jhass> "a whole world to come"
<wasamasa> ^
<apeiros_> it's called an ellipsis
<wasamasa> like, knowing why gets appends a newline to the input read in
<blacknicker> yeah but they mean other stuff?
<wasamasa> that is a whole new world
<jhass> oh, apeiros_ got a tail today :D
<workmad3> blacknicker: ellipsis, they're used to elide extra information, or in this case as a stand-in for 'a shitload more that isn't worth stating right now anyway'
<blacknicker> oh
<apeiros_> jhass: I got that tail a couple of days ago
<apeiros_> apeiros sans tail is here too
<wasamasa> or why the input is read in as string at all
<apeiros_> we come as a pair now
<wasamasa> or why ruby fails on you if it's not looking like a number
<jhass> apeiros_: oh, you still lack a bouncer :P
<apeiros_> correct
<workmad3> bouncers are for boring people :P
<apeiros_> still having this fantasy of writing one based on silverplatter-irc or cinch.
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<jhass> in the mean time just grab a znc
<apeiros_> reality says I should spend my time with more important stuff :(
<apeiros_> yeah, I have VMs again, so that's actually an option
<wasamasa> firrre offers znc bouncers for freenode users
<wasamasa> and cool reverse dns entries
<apeiros_> meh
<wasamasa> aka "hostmasks"
<apeiros_> no trust :)
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<blacknicker> this is the hardest thing i've ever tried to learn, but thank you for that reminder that gets always treats stuff like strings
<jhass> or just grab a $3 box at lowendspirit.com for it
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<blacknicker> and thank you for that other stuff
<jhass> blacknicker: seriously though, go on with one of the courses. Picking your own exercises is a good thing, but you're just not there yet
<workmad3> blacknicker: fair warning too - it gets a *lot* harder
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<blacknicker> i'm up for the challenge
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<blacknicker> this is the course i bought: http://pragmaticstudio.com/ruby
<blacknicker> i'
<blacknicker> i'm not sure if it's good or not
<workmad3> blacknicker: learning the syntax for a language is just the tip of the iceberg... and all it does is give you a basic vocabulary for expressing yourself with. You still need to figure out the hard parts (like how to deconstruct a problem into something you can express in the language)
<workmad3> blacknicker: http://norvig.com/21-days.html expresses it pretty nicely, IMO :)
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<workmad3> blacknicker: pragprog and associated setups tend to be reasonably solid and trustworthy
<apeiros_> jhass: I have digitalocean boxes. I quite like them.
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<s1|verfox> Good after noon
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<jheg> o/
<s1|verfox> after exporting to csv through Rails in my controller with format.csv { createMyString.... } , my CSV viewed in Excel lost encoding. Any ideas? In case, thanks a lot from norway!
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<apeiros_> Excel does not understand csv
<jheg> im trying to inspect an array and it’s working to an extent but I can’t figure out why it is evaluating to true 3 times rather than just once
<apeiros_> and recent version seem to even lack options to set things like encoding and delimiters
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<jheg> oh sorry to interupt s1|verfox
<s1|verfox> Ok apeiros_! Thanks a lot. No worres jheg!
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<apeiros_> jhass: with e.g. [0,4,8] you do squares[0..8]
<apeiros_> you probably want values_at(*array)
<s1|verfox> apeiros_ , I am providing a price feed to a product-listing service here in Norway, and I got an email from the admin about this encoding issue. Maybe everything is OK after all, just Excel causing these issues.
<jhass> apeiros_: wrong jh ;)
<apeiros_> grah
<apeiros_> jheg: ^ a couple of lines up
<apeiros_> jhass: that's what you get for renaming!
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<jheg> thanks apeiros_ just reading now
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<jhass> it's been long enough now! leave it already!
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<jheg> apeiros_: with e.g. [0,4,8] you do squares[0..8]
<jheg> not sure I understand
<jheg> board.squares[array[0]..array[2]]
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<apeiros_> jheg: you iterate over WINNING_LINES, putting the values into array, right?
<apeiros_> and one of them is [0,4,8]
<jheg> isnt that like board.squares[0] board.squares[1] & board.squares[2]
<apeiros_> so in one of your iterations, array == [0,4,8]. following so far?
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<jheg> ok yep
<apeiros_> and then you do board.squares[array[0]..array[2]]
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<apeiros_> in [0,4,8] - to what does array[0] and array[2] resolve?
<jheg> yeah so would that be 0,4 & 8?
<apeiros_> no
<apeiros_> you do array[0]..array[2]
<apeiros_> >> array = [0,4,8]; array[0]..array[2]
<eval-in__> apeiros_ => 0..8 (https://eval.in/224000)
<wasamasa> at least excel can export usable csv
<apeiros_> wasamasa: err, no
<s1|verfox> My CSV looks fine even Vi (from the terminal) - Then it must be Excel causing the trouble ?
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<apeiros_> it can export randomly encoded ssv
<wasamasa> source: guess what I'm dealing with
<apeiros_> since it uses ; for separation, not ,
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<apeiros_> and either newer versions are hiding very well the encoding and separator settings, or they've removed it
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<wasamasa> but yeah, libreoffice is better at it
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<s1|verfox> hmmm... Just got non-printable characters in Notepad++ as well... Guess it's not only Excel then
<jhass> jheg: on side note array is a bad variable name ;)
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<jheg> ha noted
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<s1|verfox> How can I check this encoding of this string then? my rails controller: format.csv { myString }
<wasamasa> you can't
<wasamasa> you need to know it beforehand
<wasamasa> that is the curse of encodings
<s1|verfox> Hehe ok
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<s1|verfox> Standard rails app, with ruby 2.0
<wasamasa> you can of course take an educated guess, but that won't work universally
<s1|verfox> I see
<apeiros_> you can check what you told ruby which encoding the string has
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<apeiros_> string.encoding
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<s1|verfox> Thanks a lot! Reading the article, and must admit: Don't know these things at all :P
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<s1|verfox> "There Ain't No Such Thing As Plain Text." LOL
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<wasamasa> s1|verfox: unicode fixes most of those issues, but there's still plenty of interaction points where encodings differ
<wasamasa> s1|verfox: and a good developer needs to be aware of those
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<wasamasa> s1|verfox: like, whenever you're dealing with http
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<jheg> so I kind of have it working with values_at() except how do I pass in the values of each arrays elements as the values_at() arg?
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<jheg> got it I think
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<jheg> squares.values_at(array[0], array[1], array[2])
<gebbione> hi all, does anyone use mina here? is it ok to ask a question about it?
<jheg> seems to give me the arrays I need
<apeiros_> jheg: yes. which is a verbose way to write what I suggested :-p
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<apeiros_> 13:53 apeiros_: you probably want values_at(*array)
<jheg> ^ That’s how I got it :)
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<jheg> would you say there is a cleaner way to do the same thing?
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<jheg> apeiros_: is there a way to get the values of an array using the values of another array without explicitly typing them like I did above?
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<jhass> jheg: apeiros_ suggestion there is literal
<jhass> values_at(*array)
<apeiros_> jheg: ^
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<jheg> ah wonderful! lol
<jheg> thanks sorry for the dumb question
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<jheg> you guys must shake your heads so often in this chan with noob questions like mine
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<jhass> nah
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<apeiros_> "nah" indeed. that's an understandable one.
<jhass> most here will tell you quite directly if they're fed up
<apeiros_> there's some where I indeed have trouble understanding, how the person in question can still fail to understand :)
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<jheg> ha great help guys
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<s1|verfox> +1 jheg! Amazed everytime someone answers my noobness....
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<s1|verfox> Still working with that encoding issue here, gonna spend a week :P
<jheg> same
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<jheg> I get way more help here than I do from an online bootcamp I’m doing
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<jheg> that’s not to say the BC isn’t totally amazing it’s really great but it would be a lot harder without this place
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<Pro|> is there a ready function for : ["red","red","blue"] => {"red" => 2, "blue" => 1}
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<canton7> no, but there are a ton of one-liners on google
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<Pro|> what would be a good keyword
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<sevenseacat> 'frequency count'
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<shevy> sevenseacat: you be a dancing cat? http://goo.gl/aVy7sB
<Pro|> thank you
<canton7> I tried "ruby array count elements"
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<shevy> jheg not knowing methods on ruby core classes is no problem, you will learn them the more ruby code you write as you go
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<s1|verfox> Ok, I am getting closer: "abcd".encode('ISO-8859-1','utf-8') returns abcd
<apeiros_> o0
<apeiros_> you only need 2 arguments with String#encode if you failed to set the proper encoding of your string to begin with…
<s1|verfox> myString.encode('ISO-8859-1','utf-8') returns: incompatible character encodings: UTF-8 and ISO-8859-1
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<apeiros_> o0
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<s1|verfox> So it's something inside the string
<apeiros_> what is your target encoding?
<apeiros_> i.e., which encoding should your string have in the end?
<s1|verfox> ISO-8859-1 is my target, believe this is what Excel can handle
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<apeiros_> what excel handles depends on your excel version and installation. sad truth.
<apeiros_> excel mac here expects macroman f.ex.
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<apeiros_> and yes, in that case it means you have characters in your string which don't exist in iso-8859-1
<s1|verfox> Ok, if you check my csv apeiros, can you see if it's OK ?
<apeiros_> remember, iso-8859-1 only has 256 possible characters. utf has billions.
<s1|verfox> Ok
<s1|verfox> good to know
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<apeiros_> s1|verfox: no, sorry. but you can check yourself. you can tell ruby to replace incompatible chars.
<apeiros_> and then you can visually inspect it
<apeiros_> or you translate character by character and see where it fails
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* apeiros_ afk
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<shevy> s1|verfox are you having fun with the encoding issues? :>
<s1|verfox> haha
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<jhass> shevy: it's because MS doesn't use UTF-8 everywhere
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<shevy> I literally forgot how to use MS past win xp
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<shevy> I regularly have to help my mother debug crap problems on Win 7 :(
<wasamasa> sad times
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<shevy> hehe
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<txdv> shevy: ha
<txdv> my mother superior to yours
<txdv> she use linux
<shevy> damn
<shevy> did you force her?
<txdv> yes
<shevy> cool
<txdv> i showed her where the firefox and skype icons are
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<txdv> and that was fucking it
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<shevy> ah I'd need more than that; one huge problem is that she is using outlook
<txdv> ooo my mama use gmail
<shevy> ya I told that my mother a million times as well but it is hopeless; it is as if with old age certain patterns become permanently ingrained
<gregf_> Pro|: ["red","red","blue"].inject({}) { |h, val| h.has_key? val ? h[val] = 1 : h[val]+=1;h }?
<txdv> I she still using win98?
<gregf_> bah :/ sorry. that was a while ago :/
<shevy> I'm gonna test how ruby works on her computer, then I could try and automatize lots of stuff through ruby
<jhass> txdv: same here. old crappy xp laptop became too slow. now linux is running on it and there are no more complaints about it
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<shevy> txdv nah, Win 7; also another problem is that she is using a sony vaio workstation, like where the computer is integrated in the monitor; it's like a standtop ... I have no experience on that how well linux runs on it
<shevy> oh sorry, might even be just win vista
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<jhass> gregf_: each_with_object
<gregf_> jhass: yeah, theres soo many more better ways :/
<apeiros_> gregf_: standard case where you should use each_with_object, not inject.
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<gregf_> i wonder how complex ruby code reviews would be
<apeiros_> …; accumulator } # <-- inject abuse
<gregf_> ah - ok
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<shevy> gregf_ I guess it depends on the style used, and the amount of code
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<gregf_> yeah [*1..5].each_with_object({}){ |h, val| ... }
<txdv> what was the last thing you had to help your mom to debug, shevy?
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<shevy> txdv the monitor/computer gets superhot then she said it flashed sort of, and went down. and could not be brought up again
<txdv> HAVE YOU TRIED IT TURNING IT OFF AND ON AGAIN?
<s1|verfox> 倀爀漀搀
<s1|verfox> ups
<canton7> >> ['red', 'red', 'blue'].each_with_object(Hash.new(0)){ |v,h| h[v] += 1 }
<eval-in__> canton7 => {"red"=>2, "blue"=>1} (https://eval.in/224041)
<s1|verfox> things are going crazy here
<s1|verfox> :D
<shevy> txdv yeah, it won't work when it is hot, it just says "SMART HDD FAILURE"; once it is cooled down, it can be brought up however
<canton7> remember that #inject and #each_with_object take their arguments in opposite orders ;)
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<txdv> well that is actually a problem
<txdv> i had to teach my mom how to change the input audio device
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<shevy> your geek-mom is clearly too advanced
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<gregf_> canton7: well in Perl, its : grep !$seen{$_}++,qw/red red blue/ :/
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<canton7> concise but unreadable to any sane human ;)
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<shevy> I could actually replace the computer with a normal desktop machine + linux, I have a spare one + monitor too; only real problem there is ... what to do with outlook, it's literally the number #1 thing she uses
<gregf_> i just wonder at times why ruby does'nt have a pre/post increment oprator
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<canton7> because that implies mutation
<gregf_> *operator
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<canton7> and ruby doesn't mutate numbers
<gregf_> ah - and Fixnum's are immutable?
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<canton7> it stems from the fact that even numbers are objects
<canton7> yes, they are
<gregf_> yeah, fair enough
<canton7> and that becomes important when you start capturing them in blocks and the like
<txdv> shevy: nothing you can do about it
<txdv> what outlook version though?
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<shevy> dunno forgot to check; probably the one that was actual from ... 2009
<gregf_> something new to learn everyday; canton7++ :)
<txdv> try wine
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<canton7> :)
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<gregf_> well thought of doing a benchmark and inject is faster ;). anyways
<gregf_> tho' its not the proper way to do it :/
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<canton7> is there really much in it?
<canton7> there shouldn't be :P
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<gregf_> nah. ;). each_with_object is more readable
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<nobody44> hello, i installed gitlab on my server, but after the last update (its arch linux), gitlab stopped working. It says: "libicui18n.so.53 not found". is there a way to "rebuild" the application? in this case gitlab?
<nobody44> because from what i know, gitlab does not "required" libicu v53
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<jhass> nobody44: first step is to figure out what binary throws that
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<nobody44> it was charlock_holmes
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<jhass> was? so you solved it?
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<jheg> I am trying to iterate through known elements in an array using intergers stored in a seperate array and if a coniditon is met then change that elements value in the original array
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<jheg> for instance a =[1,1,1,1,2,1,1,1,1]
<jheg> b = [[0,1,2],[3,4,5],[6,7,8]]
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<Hanmac> jheg: what s the wanted result?
<jheg> so using a loop to iterate through b passing their values into a to check if a condition is met and if so change that element
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<_bart> Hi, I'm using Nokogiri, and I located a specific element (Nokogiri::XML::Element), but now I want to get the string position of this element inside the original (text) HTML document, is that possible?
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<jheg> this is what i have so far but it returns the correct array but doesnt change it
<jheg> board.squares.values_at(*the_line).map{ |e| (e == ' ') ? e = 'M' : e }
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<txdv> jaja compadre, just sum the string lengths of all the left side of the tree
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<txdv> is very easy
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<jheg> Hanmac: In this example I’d want to change 2 to 3 for example but only for 2’s that are within the current iteration of b’s values as indexes
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<jhass> _bart: what's a "string position"? The index?
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<eam> jhass: how do you elevate to root, then? pam module for a non-pass mech in sudo?
<jhass> I don't mind a suid binary or two
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<eam> I mean, via what credential?
<jhass> no password auth for sshd
<jhass> not in general
<eam> ah. See, I'd rather not transmit any in
<eam> there's no meaningful reason to disallow root logins for non-password auth
<eam> but there are a bunch of good reasons to never send secrets to the remote node
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<jhass> you trust your sshd enough for root login but not encrypting a password over the wire?
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<eam> it's not encrypted after it goes over the wire -- not entirely about trusting sshd
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<jhass> so you fear somebody else on the server reads your pty?
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<eam> or has rooted the node (but not all of the others)
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<eam> probably the most common case
<_bart> jhass: yes the index of the string inside the big document
<jhass> you use the same password everywhere?
<eam> or has managed to get me to run something other than /usr/bin/sudo
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<eam> jhass: not everywhere, but certainly not a separate password for every machine either
<jhass> _bart: I don't think you can. Why do you want that? Replace something?
<eam> most employers run a directory service and use the same password across production
<_bart> No, I want to know if a certain element occurred first in the document relative to another few elements
<eam> jhass: something like pam_ssh_agent_auth for sudo or kerberos is far superior
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<eam> there's also the issue of interactive logins being more rare than automated stuff
<jhass> _bart: I'm not sure I follow but I can imagine you could craft an xpath for that
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<jhass> _bart: like fetch the first via xpath and then just == with what you have
<_bart> jhass: ah yes, in this case the parent is the same so I guess it's simply the index of the child in the parent
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<_bart> jhass: xpath('count(preceding-sibling::*)'), is nice
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<jhass> :)
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<mostlybadfly> Good morning
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<shevy> hey mostlybadfly
<shevy> whatch coding lately?
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<mostlybadfly> shevy: just been doing exercism exercises
<mostlybadfly> I also made a silly shoes app
<mostlybadfly> Going back through the matasano crypto challenges too
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<_bart> If I have two arrays [1,3,5] and [2,4,8], how do I confirm that if they are joined, the interleave perfectly (that is, I don't care that the 8 'skips' a few numbers) but both the arrays contribute evenly
<_bart> they* interleave
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<pontiki> can you give an example of the output you're expecing? "interleave" is a bit vague
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<_bart> so [2, 3, 5] + [1, 4, 8] is an example that does not interleave properly, the first array contributes two numbers in a row.
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<_bart> the output should be true (the arrays together join like a zebra pattern), or false (they do not interleave evenly)
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<iLike> _bart, so basically you want given two arrays A, B of equal size that for each i A[i] > B[i] or A[i] < B[i]?
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<_bart> the spacing between the numbers does not matter, as long as one array does not at one point contribute two integers in a row
<iLike> I'm assuming you in a row means in increasing order?
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<iLike> [1,3,5] and [2,4,6] interleave then?
<_bart> that is correct, they are always ordered from low to high
<_bart> yup, that one should return true
<_bart> [2, 6, 10] and [4, 8, 12] as well. but [2, 6, 10] and [4, 8, 9] is FALSE for example
<iLike> see what I mentioned earlier :) You want to check if for each i in your arrays A[i] < B[i], or the other way around
<iLike> Or <=, depending if you consider equal numbers valid
<_bart> but then [1, 2, 3] and [4, 5, 6] would check out as true
<_bart> which do not interleave
<iLike> A[i] < B[i] < A[i+1]?
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<mostlybadfly> If you want them in order join then sort?
<_bart> this freezes my brain, but I think that A[i+1] is correct yes, that'd prevent the situation and maybe also add a A[i-1] < at the start
<_bart> to make sure [4, 5, 6] and [1, 2, 3] does not return true
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<workmad3> _bart: what about [1, 10, 12] and [2, 9, 11]?
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<waxjar> a.zip(b).flatten == a.zip(b).flatten.sort should work, no?
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<iLike> _bart, note that this is not a valid ruby expression (I think). (A[i] < B[i] && B[i] < A[i+1]) would be more appriopriate?
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<_bart> workmad3: that should return false
* iLike doesn't know the ruby syntax
<workmad3> waxjar: I was thinking of 'a.zip(b).each_cons(2).all?{|i, j| i.last <= j.first}' personally
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<_bart> because 2 and 9 are between 1 and 10
<_bart> and therefore, two numbers are contributed in a row
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<waxjar> workmad3: probably a little more efficient :P
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<workmad3> _bart: right, so you want something that, when zipped, remains ordered
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<joncol> How best to skip installing certain gems (using Bundler) on the build server?
* _bart looking up what zipped means
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<waxjar> >> [1,2,3].zip [10,11,12]
<eval-in__> waxjar => [[1, 10], [2, 11], [3, 12]] (https://eval.in/224055)
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<workmad3> _bart: ah, also, you may want to do .all?{|i,j| i.first <= i.last && i.last <= j.first}, thinking about it
<_bart> >>> [1,3,5].zip [2,4,6]
<eval-in__> _bart => /tmp/execpad-a5c999b8aa31/source-a5c999b8aa31:2: syntax error, unexpected '>' ... (https://eval.in/224056)
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<_bart> >> [1,3,5].zip [2,4,6]
<eval-in__> _bart => [[1, 2], [3, 4], [5, 6]] (https://eval.in/224057)
<workmad3> _bart: although waxjar's version with sorting may be easier to comprehend :)
<_bart> >> [1,3,7].zip [2,4,6]
<eval-in__> _bart => [[1, 2], [3, 4], [7, 6]] (https://eval.in/224058)
<_bart> ah
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<workmad3> >> [1,3,7].zip([2,4,6]).each_cons(2).all?{|i,j| i.first <= i.last && i.last <= j.first}
<eval-in__> workmad3 => true (https://eval.in/224059)
<workmad3> ah crap, missed the last bit...
<_bart> joncol, use environments? like Rails uses development/production
<workmad3> >> [1,3,7].zip([2,4,6]).each_cons(2).all?{|i,j| i.first <= i.last && i.last <= j.first && j.first <= j.last}
<eval-in__> workmad3 => false (https://eval.in/224060)
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<_bart> joncol, gemfile/bundler supports environments
<workmad3> _bart: s/environments/groups
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<_bart> ah groups is the right word, yes, thanks
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<joncol> _bart, workmad3> Is it possible to create custom groups in the .gemspec file or do I have to do it in the Gemfile directly?
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<workmad3> joncol: gemspec has no conception of groups...
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<workmad3> joncol: gemspec does have a concept of runtime dependencies and development dependencies though
<_bart> >> [1,3,7].zip([2,4,6]).each_cons(2).all?{|i,j| i.first <= i.last && i.last <= j.first && j.first <= j.last}
<eval-in__> _bart => false (https://eval.in/224061)
<workmad3> joncol: gemspec is rubygems btw, not bundler
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<joncol> workmad3> Yes I think I need finer granularity than only those two.
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<_bart> >> [1,3,6].zip([2,4,7]).each_cons(2).all?{|i,j| i.first <= i.last && i.last <= j.first && j.first <= j.last}
<eval-in__> _bart => true (https://eval.in/224062)
<_bart> wooo :D
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<workmad3> joncol: that's all you get with gemspecs
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<joncol> workmad3> OK, but it's no problem to have some gems in the Gemfile and the rest in the .gemspec-file?
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<workmad3> joncol: gems in the Gemfile are completely invisible to anything that installs your gem
<_bart> >> [1,2,3].zip([4,5,6]).each_cons(2).all?{|i,j| i.first <= i.last && i.last <= j.first && j.first <= j.last}
<eval-in__> _bart => false (https://eval.in/224063)
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<waxjar> if you're gonna distribute your gem trough rubygems, don't use a Gemfile
<joncol> This is for internal use only
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<workmad3> waxjar: you can... but you have to make sure all your gem's dependencies are in the gemspec and only some development gems necessary for your own personal preferences are in the Gemfile :)
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<waxjar> yeah, fair enough. just be aware that rubygems is not gonna install them for you :P
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<workmad3> joncol: basically, when you install a gem through rubygems, the only thing that gets looked at is the .gemspec, and by default it will only install the runtime dependencies (you can specify to install development dependencies too)
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<bootstrotter> moose
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<shevy> goose
<waxjar> i think you can even tell the gemfile to look at the gemspec, maybe its also possible to add some extra groups and stuff?
<workmad3> joncol: you don't get any finer control than that through rubygems... there's no provision for things like optional dependencies, for example
<waxjar> in addition to the gemspec, that is
<workmad3> waxjar: yeah, you can
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<workmad3> joncol: so the question is... are these gems dependencies that you want/need to install when the gem is installed in another project?
<workmad3> joncol: or are they some development-machine specific tooling that you don't need on the build server?
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<_bart> workmad3: any way this is scalable to three arrays? Like [1,2,3] and [4,5,6] and [7,8,9] returns true because all three arrays never contribute two values in a row to the total
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<bootstrotter> Isn't ruby...SUPER...eh...ehhh...
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<joncol> workmad3> Teamcity wants the rspec and rake gems, but those are in the development group
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<workmad3> _bart: waxjar's version with comparing the flattened array with the sorted flattened array would scale
<_bart> workmad3: ok skip that example, that is totally wrong
<_bart> :p
<_bart> ok
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<workmad3> a = [1,2,3].zip([4,5,6], [7,9,9]); a.flatten == a.sort.flatten
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<workmad3> >> a = [1,2,3].zip([4,5,6], [7,9,9]); a.flatten == a.sort.flatten
<eval-in__> workmad3 => true (https://eval.in/224067)
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<workmad3> d'oh, .flatten.sort, not .sort.flatten
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<joncol> workmad3> It works now, thanks. Using both Gemfile (with custom group) and .gemspec did the trick
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<TheDigitalCowboy> I am a moose god
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<borodin> struggling with a bundler issue with jenkins and the rvm plugin. My latest log: https://gist.github.com/chewmanfoo/f1c3def42a33800e871f I've tried uninstalling and reinstalling mysql2 gem in a variety of ways - nothing works. Any suggestions, please?
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<pontiki> does your jenkins worker have mysql2 installed?
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<unshadow> So, I'm looking to create a SSH listener (server) socket, looking around I cannot find any examples/libs/gems for this, any one knows if something like this already exists (and not a 5 year old dead project XD)
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<ddv> unshadow, just make something with eventmachine
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<unshadow> yeha, my issue is that the functionality of an SSH socket is missing, unlike SSLSocket which is fully implemented (am I missing something?)
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<unshadow> nothing ha ?
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<atmosx> Can anyone extract the mp3 url from here? http://www.ellinofreneianet.gr/sound.php?id=7237
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<atmosx> hm <td align="center"><iframe src="bitsnbytesplayer.php?w=728&h=30&s=1&f=podcast/2011PEMPTi.mp3" width="728px" height="30" frameborder="0" scrolling="no"></iframe></td>
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<Senjai> atmosx: wget magic
<atmosx> Senjai: yeah I use wget, although curl would be a better fit most of the times
<atmosx> I'll load it to my iPhone and listen while taking a walk home
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<Joe_knock> Hello Hello
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<Joe_knock> Is there a way to check if I have more than 1 ruby installed on ubuntu?
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<havenwood> Joe_knock: update-alternatives --config ruby
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<Joe_knock> havenwood: I get: There is only one alternative in link group ruby: /usr/bin/ruby1.8
<Joe_knock> Does this mean I have 1 or 2?
<havenwood> Joe_knock: so there aren't alternatives
<havenwood> 1
<Joe_knock> aah thank goodness for that
<yxhuvud> Joe_knock, dpkg -l |grep ruby
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<Joe_knock> I thought I screwed up my ruby install a long time ago
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<havenwood> Joe_knock: you may have rubies not installed by apt
<Joe_knock> If RVM is the equivalent of Pythonbrew, what is Rubys equivalent of virtualenv ?
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<yxhuvud> dunno, but I'd recommend chruby for that task
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<Joe_knock> Basically, the workflow I want is to use RVM for different Ruby versions and through virtualenvs on top of each version for specific dev environments
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<Joe_knock> havenwood: ubuntu software centre doesn't have ruby listed
<yxhuvud> Joe_knock: I'd use chruby + bundler, and avoid rvm like the plague. It does some things that are not really healthy.
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<Joe_knock> yxhuvud: can you provide more info on what weird things it does?
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<yxhuvud> for example, it put an alias on ls.
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<havenwood> yxhuvud: huh?
<yxhuvud> or has it stopped doing that?
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<havenwood> yxhuvud: i think you're thinking cd, and yeah i think all is well
<yxhuvud> oh, it was cd. even worse.
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<havenwood> Joe_knock: If you don't need to switch Rubies, consider just using the Brightbox package for Ubuntu so you can have latest stable but still use the package manager: https://launchpad.net/~brightbox/+archive/ubuntu/ruby-ng
<havenwood> Joe_knock: RVM is a feature-full option for installing and switching or for example I use ruby-install to install and chruby to switch.
<havenwood> Joe_knock: You can actually use RVM to install and chruby to switch even if you like. There are many options. :)
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<yxhuvud> rvm was a fantastic solution to a big problem when it came, but nowadays the different subtasks it solves are solved better by other tools, like chruby, bundler, rbenv etc.
<Joe_knock> Does having multiple Rubys on a single system at system-wide level not cause conflicts? I've come across people saying that doing it for Python may break things on Ubuntu
<havenwood> yxhuvud: I don't think rbenv is a better solution. But I'm with you on the chruby and bundler love. :)
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<Joe_knock> I looked at rbenv, but I makes things too complicated to use
<havenwood> Joe_knock: It's fine to have multiple system rubies. Ubuntu uses update-alternatives to switch.
<havenwood> Joe_knock: Or just have one system Ruby, why do you need multiple?
<havenwood> Joe_knock: Your choice.
<shevy> Joe_knock the problem is the location; for instance, you can have only one instance at e. g. path "/usr/bin/ruby"
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<havenwood> Joe_knock: So one ruby *at a time*.
<Joe_knock> havenwood: Partly because I enjoy the workflow of something like pythonbrew. It feels "clean" and makes things easier to manage, especially when there are multiple devtools on a single system (eg. pythonbrew, meteor, etc.)
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<yxhuvud> also one set of gems at a time, with bundler.
<shevy> Joe_knock distributions like gobolinux (before they died) solved it in ways how RVM would solve it in the HOME_DIR - $HOME/.rvm/ruby-version-bla; gobolinux went for system-wide /Programs/Name/Version, so you'd have /Programs/Ruby/2.1.3 and /Programs/Ruby/1.8.7 and would set a symlink (through update_program name) to point at the current version in use
<havenwood> Joe_knock: bundler is a gem, you can use it with any of the above ways to install and switch rubies
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<Joe_knock> interesting, shevy . Seeing as you guys are mentioning HOME_DIR, I believe that is how Pythonbrew does it.
<Joe_knock> oh wait ... I misread there
<shevy> Joe_knock yeah; it's how gobolinux got started too, hisham compiled and installed into his user dir
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<shevy> Joe_knock so ultimately it will depend on what model you follow; the FHS model won't allow more than one /usr/bin/ruby, so debian would have I think /usr/bin/ruby2.0 or something like that, and then /usr/bin/ruby is a symlink - they can not easily switch to multiple different ruby versions, because where do the real different ruby binaries reside precisely on a debian system?
<Joe_knock> It kinda makes me wonder if a fork of Ubuntu to simply "enhance" developer tools would live. Something like Mozilla's new browser
<shevy> enhance what model
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<shevy> you are still in the ubuntu model
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<Joe_knock> The gobolinux way of doing it
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<shevy> dunno; the big distributions have no intention to change to alternative ways
<shevy> do it their way or take the highway
<shevy> how did unity originate :)
<Joe_knock> no unity by me :'D that shit would smash my old systems
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<lampd1> anyone know of a better way to get a human readable and filename friendly timestamp than something like `Date.strptime(Time.now.to_s, '%Y-%m-%d').strftime('%Y%m%d')` ?
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<shevy> lampd1 what does the above yield?
<jhass> lampd1: Date.today
<shevy> # => "20141120"
<shevy> Date.today.to_s # => "2014-11-20"
<jhass> or even Time.now.stftime
<shevy> >> require 'date'; Date.today.to_s.delete('-')
<eval-in__> shevy => "20141120" (https://eval.in/224136)
<shevy> lampd1 there you go! a 1:1 clone now
<jhass> meh
<jhass> keep strftime
<jhass> it's the proper way
<jhass> just the way to obtain your Date instance is more than fishy
<shevy> it demands an argument!
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<shevy> I think lampd1 got overwhelmed :)
* shevy pokes lampd1
<shevy> wake up man!
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<lampd1> playing with it in pry :P
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<lampd1> hmm, Time.now.strftime doesn't seem to work, but DateTime.now.strftime works, but isn't filename friendly
<shevy> how about Date.today!
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<lampd1> well, my example is kinda lame cuz i'll want hms too
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<lampd1> :P
<shevy> Time.now.strftime would work for me I guess but it requires a mandatory argument
<jhass> >> require 'time'; Time.now.stftime('%Y%m%d')
<eval-in__> jhass => undefined method `stftime' for 2014-11-20 18:35:31 +0000:Time (NoMethodError) ... (https://eval.in/224138)
<jhass> >> require 'time'; Time.now.strftime('%Y%m%d')
<eval-in__> jhass => "20141120" (https://eval.in/224139)
<jhass> there
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<jhass> stdlib method
<shevy> .stftime!
<jhass> >> require 'datetime'; DateTime.now.strftime('%Y%m%d')
<eval-in__> jhass => cannot load such file -- datetime (LoadError) ... (https://eval.in/224141)
<lampd1> oh just needed arg
<shevy> he likes to swallow the r
<jhass> >> require 'date'; DateTime.now.strftime('%Y%m%d')
<eval-in__> jhass => "20141120" (https://eval.in/224142)
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<jhass> >> require 'date'; Date.today.strftime('%Y%m%d')
<eval-in__> jhass => "20141120" (https://eval.in/224143)
<jhass> all the same
<shevy> I'd wish ruby would have a consistent naming scheme
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<lampd1> thx guys :)
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<graft> okay, so i have ruby 2.1.4, and gems install to lib/ruby/gems/2.1.0 - is that always RUBY_VERSION with a 0 at the end?
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<jhass> the 2.1.0 is the current ABI version
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<lampd1> >> Time.now.strftime('%Y%m%H%M%S')
<eval-in__> lampd1 => "201411184736" (https://eval.in/224146)
<graft> err, what is an ABI version?
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<shevy> graft should refer to the C API
<shevy> to ensure binary compatibility with older ruby versions of the same line
<shevy> so 2.1.3 will refer to 2.1.0 as will 2.1.4
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<graft> is there a convenient environment variable that holds this?
<shevy> this explains why the default path to ruby even for e. g. 2.1.4 is at /usr/lib/ruby/2.1.0/ and not at /usr/lib/ruby/2.1.4/
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<shevy> dunno, but perhaps!
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<jhass> graft: I could imagine RbConfig::CONFIG has it somewher
<jhass> e
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<jhass> Gem has some convenience methods to get paths to GEM_HOME etc.
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<graft> RbConfig::CONFIG["ruby_version"] seems to do it
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<shevy> \o/
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<shevy> you are the true crafty grafter
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<zdaniel> so with active_support I can say some_datetime.hours
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<zdaniel> But that is giving me 7 for hour 7 AND 7 for hour 19.
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<zdaniel> is ther a way to get that in 24 hour time always?
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<zdaniel> nevermind, my question earier was just me writing the wrong tests.
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<crack_user> hello guys
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<crack_user> can I define a class called "Process" in ruby?
<crack_user> or it is reserved?
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<j416> crack_user: it's a Module so you can't define it as a class
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<crack_user> thank you j416
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<j416> crack_user: to find out for yourself you can either search the docs, or you can run irb and just type Process to see if it is defined
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<j416> crack_user: Process.class will say Module, indicating that it's a module
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<crack_user> I cant even use ::Process?
<havenwood> >> ::Process == Process
<eval-in__> havenwood => true (https://eval.in/224169)
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<crack_user> :
<crack_user> :/
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<jhass> >> module MyApp; class Process; end; end;
<eval-in__> jhass => nil (https://eval.in/224170)
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<angryzor> Proc is also taken btw
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<jhass> just be a good citizen and namespace everything
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<eam> >> $VERBOSE=nil; Process = Class; Process.class
<eval-in__> eam => Class (https://eval.in/224172)
<eam> no big deal
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<wasamasa> hmm
<wasamasa> is there anything in ruby like python's pass?
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<wasamasa> a function to use as placeholder
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<pontiki> what does pass do?
<wasamasa> in lisp I'd use ignore
<jhass> pontiki: nothing, it's a syntax requirement to have empty branches
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<jhass> wasamasa: in ruby you just keep the branch empty
<wasamasa> jhass: ah, nice
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<jhass> that said I very rarely need empty branches in ruby
<wasamasa> well, yes
<pontiki> how often does one need them in python?
<wasamasa> it's just useful when temporarily making some code not execute
<pontiki> or lisp for that matter
<wasamasa> or sketching out code
<wasamasa> not that often
<wasamasa> ignore in lisp is a bit different, too
<wasamasa> since it's an actual function that takes any number of arguments and does... nothing
<wasamasa> whereas pass in python is a syntactical built-in
<pontiki> i remember needing to use a NOP sometimes when writing assembler....
<wasamasa> or something like that
<wasamasa> so I rather use ignore in lisp for "mocking"
<wasamasa> and otherwise if I can't just use nil
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<wasamasa> anyhow, thanks
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<shevy> hmm what would be an elegant or short way to convert "151.13" into "151.130"?
<jhass> << '0'
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<borodin> struggling with a bundler issue with jenkins and the rvm plugin. My latest log: https://gist.github.com/chewmanfoo/f1c3def42a33800e871f I've tried uninstalling and reinstalling mysql2 gem in a variety of ways - nothing works. Any suggestions, please?
<pietr0> >> sprintf "%.3f", 151.13
<eval-in__> pietr0 => "151.130" (https://eval.in/224182)
<eam> >> "151.13""0"
<eval-in__> eam => "151.130" (https://eval.in/224183)
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<jdj_dk> anybody here using capistrano? Can't get it to respect roles not containing db. I don't want it to do db migrations on deploy.. worked fine in 2.x.. but can't make it work in 3.x... Tried setting it in deploy.rb and as a environment var when running the task.. any suggestions?
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<jhass> there's a #capistrano
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<jdj_dk> jhass: thanks =)
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<atmosx> hello
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<shevy> atmosx!
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<shevy> is your exam over?
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<atmosx> shevy: yeah I passed, the prof was good (luckily)
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<atmosx> I mean he gave me an 'e' which the lowest vote but I passed it
<atmosx> now I have another problem though.
<shevy> atmosx \o/
<shevy> lol
<atmosx> hehe ty shevy :-D
<The_NetZ> pop those tops folks, lets party!
<shevy> how can you solve one problem and incur a new problem
<atmosx> I need wait another 1.5 years to get the degree
<atmosx> because pharmacy is 5 years and if I get the degree earlier is not recognized
<atmosx> by many EU states, Greece among them
<atmosx> so
<The_NetZ> shevy: got ruby 2.1.5 setup under mingw-w64 on arch linux :)
<atmosx> but I'll be in Greece at least...
<The_NetZ> I wonder... if germany attacked france from the rear, would greece help?
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<atmosx> Anyone familiar with HAML? I have an array... which I display using array.join(' ,') ... can I turn this array into an array of links? joined?
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<shevy> atmosx huh? what madness is this?
<shevy> I mean the waiting time
<atmosx> shevy: well, I have some tags and I want make the click-able
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<atmosx> now I display them in views using tags.join(' ,') so... I wonder if I can make them somehow link "/tags/:#{element}" ... I think it can be done through a helper method
<atmosx> but I can't wrap my mind around it
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<ramfjord> atmosx: array.map { |tag| link_to tag blah } ?
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<shevy> atmosx I meant the waiting time, not your HAML questions :-)
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<shevy> though HAML is not far from madness either, come to think about it :P
<atmosx> ramfjord: that won't work, I need to join them into 1 line somehow
<atmosx> shevy: ah, it's well... it's pharmacy
<atmosx> shevy: I just finished a little bit too quickly
<atmosx> apparently
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<atmosx> ramfjord: no wait that might work, I never think of using map for anything shit
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<atmosx> ramfjord: works! thanks
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<cafeina> Hi! I am a ruby newb, can someone help me with open-uri?
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<cafeina> There is this file I wanna download: http://www.imdb.com/list/export?list_id=ratings&author_id=ur0000001
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<cafeina> but I don't know how to do it with ruby =(
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<havenwood> cafeina: 404
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<cafeina> yeah, ruby gives me this error, but I can download the file from my browser
<havenwood> cafeina: i can't
<cafeina> it gives the "ratings.cvs"
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<havenwood> cafeina: clear your cache?
<havenwood> rpag: so they did post a vid, found where i talk: rpag: found vid of me talking tues: https://www.youtube.com/watch?v=4_RJu_TrqO0&feature=youtu.be&t=7h21m34s
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<havenwood> rpag: i was super nervous and forgot to say most of what i meant to, but at least the camera was zoomed out so you can't tell
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<havenwood> can't tell too much* >.>
<cafeina> I cleared the cache, but I can still download the file from the browser
<cafeina> it is a file from imdb, so it is supposed to be always "downloadable"
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<cafeina> part of my request:
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<shevy> cafeina from that URL above?
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<_1_sexy> you a girl
<shevy> cafeina the URL you gave me gives me 404 not found
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<shevy> cafeina are you logged in somewhere there?
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<cafeina> hmmm, I am logged in at imdb
<cafeina> so maybe it requests a login to download the file
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<shevy> I guess you must tell open-uri that information too so it can connect properly, else you are treated like a common visitor
<cafeina> yeah, that is it
<cafeina> there is no link if I am not logged in
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<havenwood> yeah, they say 404 but looks like a little lie, since 405 :P
<cafeina> Thank you very much =)
<havenwood> cafeina: yeah, check out: curl -I "http://www.imdb.com/list/export?list_id=ratings&author_id=ur0000001"
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<cafeina> yeeah
<cafeina> 405
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<cafeina> method not allowed
<_1_sexy> cafeina wanna be my girlfriend
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<cafeina> thank you, I tried examining with wireshark, but it didnt show any problems =p
<cafeina> I am a dude
<cafeina> hahahaha
<_1_sexy> any girls here
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<cafeina> thank you guys
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<havenwood> cafeina: no prob
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<jhass> apeiros: ^
<_1_sexy> sorry
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<havenwood> apeiros: \o/
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<apeiros> my apologies, cafeina. thanks jhass.
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<apeiros> hm
* apeiros ponders a social experiment
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<atmosx> in a multiuser system
<apeiros> I guess you could call irc that
<apeiros> LIKE %foo% queries can't be indexed in a good way
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<atmosx> hm, that's messed up. One way or another... I'll to do an extra filtering
<atmosx> blah I'll continue tomorrow
<apeiros> atmosx: also, pointing to a stack overflow question with tons of answers and asking "this scheme"? seriously?
<atmosx> apeiros: anyone of them
<apeiros> yes. you can make it with one of them
<atmosx> apeiros: that would work fine if the app had 1 user, if the app is multiuser how will you filter between users through tags?
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<apeiros> atmosx: you did not describe how your tagging system is supposed to work. so: no idea.
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<atmosx> without an extra table you can do that, or without extra filtering.. fetch tags, match tags to products, see which products belong to the user, create a list display them...
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<atmosx> apeiros: pretty much as the Toxi system listed there.
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<apeiros> the system listed there does not have users.
<atmosx> apeiros: yeap, but mine should have :-(
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<atmosx> I mean more than one user
<apeiros> ok, look, I'm not interested in pulling a spec out of your nose.
<apeiros> specify your problem. then ask.
<apeiros> don't make people figure YOUR spec for you.
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<Oog> any advice on finding memory leaks? someone recommended ruby-prof but it requires a patched ruby...
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<atmosx> Actually, I'm trying to figure out the less complicated way to make a working tag scheme, for a web-app with multiple users. My current scheme works, but it has double entries in my 'Tag' models and soon will be overflowing.
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<Oog> it really seems like there isnt a good tool for finding memory leaks in ruby...? :(
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<lampd1> so, how would you guys validate hash values the ruby way?
<lampd1> not sure it's going to be worth my time to validate them, but it could be nice
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<lampd1> would like to check datatype and length
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<atmosx> lampd1: minitest?
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<lampd1> well, i actually want it to validate the output during execution
<atmosx> oh I see
<lampd1> as the system the data gets fed into just fails if the data isn't the right type
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<atmosx> like Rails, well write method..
<lampd1> :P
<atmosx> a method
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<lampd1> ergh
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<lampd1> i guess i could, just wondering if there was anything handy already made :P
<lampd1> saw hash_validator but it doesn't do length afaik
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<atmosx> lampd1: adding a validator doesn't seem complicated.
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<atmosx> to that gem
<rpag> havenwood, hey, congrats man!
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<rpag> havenwood, didn't notice at all :)
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<havenwood> rpag: yay :)
<atmosx> havenwood: you got married?
<havenwood> atmosx: nooo :O
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<lampd1> yeah, might use it atmosx
<atmosx> havenwood: hmm whatthen?
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<lampd1> will have to test performance
<havenwood> atmosx: a lighting talk at RubyConf
<atmosx> havenwood: aaaa, sorry. Congrats anyway :-)
<atmosx> havenwood: when are you going up? that's live streaming umnice
<lampd1> what do you guys use to profile Ruby?
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<_2_Rebecca> hi
<atmosx> ah no, havenwood what minute did you come up?
<havenwood> atmosx: i think i linked the spot
<shevy> _2_Rebecca lol sure sure sure, the _2_ is a dead giveaway
<_2_Rebecca> u ok
<shevy> lampd1 I only use benchmarks
<atmosx> havenwood: oh that's you! OMG I thought you were uglier! :-P
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<havenwood> atmosx: hahaha
<havenwood> atmosx: nope, just that ugly, no more :P
<_2_Rebecca> ha
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<lampd1> what's your setup like for that shevy?
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<atmosx> shevy: everybody uses benchmarks... :-P
<_2_Rebecca> I think
* lampd1 runs ruby app, looks at watch
<shevy> lampd1 just benchmarks to see what is faster and preferrentially use that UNLESS the other way is prettier (and not much slower)
<lampd1> :P
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<lampd1> sry if my questions are super noobish, working on my first ruby app after working solely on Magento projects for a few years :P
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<atmosx> havenwood: blah lame youtube still doesn't start, I wonder it has to load the entire video :-/
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<_2_Rebecca> do u like talking
<atmosx> lampd1: what kind of app, eshop?
<jhass> apeiros: social experiment ready?
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<apeiros> jhass: no. you'd know.
<apeiros> seems to be the same as before.
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<lampd1> atmosx: building a bridge between shopify and an APIless ERP system
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<jhass> ups, scared away, sorry
<lampd1> so, mostly functional stuff
<apeiros> :)
<atmosx> lampd1: interesting
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<lampd1> enjoying ruby though :)
<atmosx> lampd1: do you any programming experience with other langs?
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<atmosx> lampd1: PHP I guess?
<lampd1> PHP mostly, super tired of ZF1 and magento tho
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<atmosx> lampd1: I see why you enjoy ruby
<lampd1> have done a little functional python stuff with an arduino lately
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<atmosx> cool
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<zacts> so far I'm really liking ruby also
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<shevy> zacts \o/
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<The_NetZ> ruby is pretty swish
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<shevy> swedish?
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<shevy> god
<shevy> that is the first time that the module vs. class distinction actually forces me to change my code
<shevy> Foo is not a module (TypeError)
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<shevy> all I do is set some constants
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<eam> ruby could do without the module concept entirely
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<shevy> yeah
<shevy> now my code works again; changing module Foo to class Foo
<shevy> but this is so annoying
<The_NetZ> heh
<jhass> don't take my mixins!
<shevy> and my toplevel is now a class too
<shevy> I am walking the path of apeiros
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<eam> I don't know why the toplevel wouldn't always be a class
<lampd1> Foo me once, shame on you, Foo me twice, shame on me. Foo me thrice...
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<shevy> eam but if you have a toplevel class in a project then you can no longer 'include' on it
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<eam> so?
<shevy> that reduces flexibility every time you desire to do composition
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<jhass> eam: because your library might be nothing but a collection of utility functions
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<eam> really the problem here is I think oo is fundamentally broken
<eam> so I'll just quit while I'm ahead
<shevy> hehehe
<shevy> perl tried to do OOP!
<cloaked1> g'day everyone. So, Python has a way of allowing a script to be called either interactively or as a module using a conditional expression looking at __main__ (iirc). Does Ruby have anything similar to that? I have a script I'd like to be able to call as a library but I need to massage it a little if so.
<eam> did a really good job of it
<eam> it's useful in a limited fashion
<shevy> cloaked1 I guess this is equivalent to: if __FILE__ == $PROGRAM_NAME
<SloggerKhan> Is there a way to insert a bunch of nearly identical methods into a ruby class? Like `[<list of method names>].each { |name| add_to_this_class_method_x_named name }` ?
<shevy> actually
<cloaked1> shevy: ah! right! Ok. Thanks!
<cloaked1> ?
<shevy> what is this interactively part? do you mean a live debugger for all modules cloaked1?
* cloaked1 waits a sec
<cloaked1> meh, nah. Just if I invoke it directly or load/require it from another script.
<shevy> ah yes
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<shevy> for a moment you got me there with some python superfeature
<cloaked1> so __FILE__ is the recommended way.
<rpag> SloggerKhan, there's define_method()
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<cloaked1> yeah, sorry. I'm not a Python dev really...just mucked with it a bit and noticed that feature a few times.
<jhass> cloaked1: note though that we tend to use two or more files though
<shevy> hah I don't know much of python myself
<cloaked1> actually, the more I mess with Python, the more I wanna kick someone betweent he legs
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<eam> right in the python
<shevy> we have lots of perl users but barely any python folks
<jhass> one containing the library and one doing nothing but requiring the library and driving it
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<jhass> the later one being your executable
<cloaked1> jhass: you mean how I've seen that there's a library loader/wrapper and the actual script kinda thing?
<eam> shevy: it's because python isn't undergoing a diaspora
<cloaked1> ah, yes
<shevy> well they have had their python 2 vs. python 3 war
<cloaked1> I suppose that would be the cleaner solution really....
<SloggerKhan> Thanks, I think define method will work for me. I'll have to at least try it, anyway.
<cloaked1> I think I'll break out the classes into their own library and require them from the main script. Thanks jhass.
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<jhass> cloaked1: quite often you even have a third one and the executable doing nothing but require 'foo/cli'; Foo::CLI.new(ARGV) or similar
<jhass> which makes it a lot easier to write tests for
<klmlfl> SloggerKhan:
<cloaked1> jhass: yeah. I've noticed that technique in a lot of libraries. I'm going to go with that.
<jhass> and then the Foo::CLI class drives your library
<klmlfl> do the methods have definitions yet SloggerKhan
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<shevy> this channel lacks smileys
<cloaked1> :)
<cloaked1> I've done my good deed for the day.
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<shevy> \o/
<klmlfl> (:
<shevy> oh that's read from right to left... my brain has difficulties with these
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<shevy> it's like going to Australia
<shevy> and walking on your hands
<klmlfl> loL
<shevy> <Ulti> got a year until v6.0.0 is actually released
<shevy> eam ^^^ look! perl 6 release!!!
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<klmlfl> windows plans to open source .net
<shevy> I think they already did most parts
<SloggerKhan> klmlfl: Not sure what you mean? Am I overriding any existing methods? Yes, but from an inherited class.
<Tuxero> hello
<Tuxero> o/
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<shevy> hi Tuxedo
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<klmlfl> sux
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