havenwood changed the topic of #ruby to: Rules & more: http://ruby-community.com || Ruby 2.3.0; 2.2.4; 2.1.9: https://ruby-lang.org || Paste >3 lines of text on https://gist.github.com || logs @ http://irclog.whitequark.org/ruby/
<Ox0dea> Is this fake code?
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<shellie_> depends on your definition of fake code; the module's are as per my "production" code, I just reduced the example to the minimum, both for simplcitiy and not sharing my companys code
<havenwood> >> define_method :method_missing, &:to_s; foo + bar + baz
<ruby[bot]> havenwood: # => "foobarbaz" (https://eval.in/547078)
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<Ox0dea> havenwood: There was a Destroy All Software where Bernhardt demonstrated a sort of "Euler's identity" of Ruby.
<Ox0dea> It was something like `define_method :method_missing, &:instance_eval`, but that wasn't quite it.
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<shevy> will the madness never stop
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<Ox0dea> havenwood: https://eval.in/547083
<zacts> hi rubyists
<havenwood> zacts: hi!
<havenwood> Ox0dea: hmmm :)
<Ox0dea> havenwood: It's so Voldemort.
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<Nawn> Bonjour!
<Nawn> :)
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<zacts> salut
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<shevy> your french accent scared him away zacts!
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<ruby-lang394> yoppp
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<Ox0dea> baweaver: Can I see your Reducible#index?
<Ox0dea> I can't figure out how to make it feel appropriately functional.
<baweaver> &ri Enumerable#index
<`derpy> No results
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<baweaver> so much for being lazy there
<Ox0dea> Oh.
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<Ox0dea> Well, I made one anyway. :P
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<Ox0dea> So stateful, though.
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<baweaver> got a gist?
<baweaver> I'll do a public version of it later and comment it
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<baweaver> probably headed out fairly soon to finish filing away some paperwork for annual reviews
<baweaver> that and I think I forgot to eat again. Nasty habit, that.
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<Ox0dea> I read somewhere that code has all the vitamins and nutrients one needs.
<baweaver> It helps you C#
<smathy> badum tish
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<Ox0dea> I'm pretty sure you were right about #lazy being the only one that's egregiously hard to do with a reduction.
<Ox0dea> It's possible, but you have to muck with an explicit Fiber.
<baweaver> pretty much
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<baweaver> also, -1 on index if it doesn't find
<Ox0dea> Classic comedy.
<baweaver> ah, index_of
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* baweaver is trippy
<baweaver> nevermind
<baweaver> looks roughly the same as I'd probably do.
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<Ox0dea> baweaver: You'd initialize with a 2-tuple and you know it.
<Ox0dea> I seent it.
* baweaver whistles
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<Ox0dea> I forget what exactly it was that you did with a single massive reduction, though.
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<baweaver> probably using a hash as a state accumulator
<Ox0dea> Aye, rings all the bells.
<baweaver> reduce({max: 0, min: 0}) { |state, i| }
<baweaver> something like that
<baweaver> though that wouldn't work
<baweaver> not the point
<baweaver> I prefer that to an arraylike tuple
<baweaver> more descriptive, though slightly more resource intensive
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<baweaver> line 26, memo
<baweaver> does &:> work on nil?
<baweaver> :>
<baweaver> It's smiling at you Ox0dea
<baweaver> ah, that one
<Ox0dea> Ruby has the greatest number of smiley-resembling operators of any mainstream language.
<Ox0dea> Quite fitting.
<Ox0dea> baweaver: What about Line 26?
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<baweaver> >> 10 > nil
<ruby[bot]> baweaver: # => comparison of Fixnum with nil failed (ArgumentError) ...check link for more (https://eval.in/547121)
<Ox0dea> >> nil &.< 42
<ruby[bot]> Ox0dea: # => nil (https://eval.in/547122)
<baweaver> nevermind
<baweaver> not thinking
<baweaver> first number is memo
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<Ox0dea> Oui.
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<baweaver> The programming gods have forsaken me today
<baweaver> or it's ze whisky
<baweaver> probably both.
<Ox0dea> "Where will you be when the Ballmer peak hits?"
<baweaver> screwing with State Machine for Rails
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<baweaver> mmm, speaking of which, chipotle does sound good. Good call chipotle
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<Ox0dea> That looks really nifty.
<baweaver> especially for launching aws instances and keeping tabs on their state changes throughout the app
<baweaver> and doing things like cleanup on certain states
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<baweaver> anyways, food time :D
<baweaver> cheers
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<Kharma> Does anyone know of a way to securely store a dB password inside of a script so that dB calls can be made automatically?
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<Ox0dea> Kharma: Why inside the script and not in an environment variable?
<Kharma> You mean an environment variable on the local system right?
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<Kharma> Ox0dea: If so it's because the code is going to be run on up to 30 machines (roughly) and setting the variables on each system would be one extra step. It's definitely an option but was checking if there was a way to do it without local environment variables.
<Ox0dea> Kharma: To be clear, all ~30 machines need to see the same value, yeah?
<Kharma> Correct
<Ox0dea> Is it liable to change?
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<Kharma> Only based on password policies. So roughly every 90 days
<Kharma> Code base is maintained in local git which makes updating much simpler
<Ox0dea> Well, even if coordination isn't of the utmost priority, it's still sanest to have them all read from the same source.
<Ox0dea> It might feel like overkill now, but you'd benefit in the long run from spinning them up with Chef.
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<Ox0dea> You'd still want Chef to read an environment variable and share it around, though.
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<Kharma> Not familiar with chef. Will check it out when I get a moment.
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<ruby-lang527> Hey guys
<benzrf> hi
<ruby-lang527> I feel like this is something that should be really easy, but I can't figure out a way to do it, and google is yielding nothing
<ruby-lang527> So I want to do a math equation, with the first argument, and return the output as a variable
<ruby-lang527> like argend = ARGV.first + 10
<ruby-lang527> But that doesn't work, and I feel like I'm missing something easy
<Ox0dea> ruby-lang527: ARGV contains Strings.
<ruby-lang527> Okay, so what am I missing?
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<ruby-lang527> Obviously I need to set argv as an integer
<ruby-lang527> Or, at least the first argument
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<Ox0dea> >> '1'.to_i + 1 # ruby-lang527
<ruby[bot]> Ox0dea: # => 2 (https://eval.in/547123)
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<ruby-lang527> I didn't think about the fact that ARGV.first is counted as a variable
<ruby-lang527> But it makes total since now
<ruby-lang527> sense, also :P
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<chipotle> baweaver: eat up! so my chipotle stock can rise!
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<Ox0dea> ruby-lang527: Almost everything in Ruby is an "expression", to use the technically correct term.
<Ox0dea> And if you've got a value, you've got an Object, on which you can invoke all kinda of methods.
<Ox0dea> >> 'foo'.methods.size
<ruby[bot]> Ox0dea: # => 170 (https://eval.in/547125)
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<baweaver> Ox0dea: think I should make that reduce enumerable bit into a tutorial?
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<Ox0dea> baweaver: Probably better to cover #map as well for that sort of thing.
<baweaver> Maybe, but this is more of a
* Ox0dea feels a pun coming.
<baweaver> Hey look, everything can be implemented with reduce!
<baweaver> type of thing
<Ox0dea> Oh.
<baweaver> A good pun is its own reword Ox0dea
<Ox0dea> And, but, well, it's more like "look at all this contrivance".
<baweaver> Kinda, but at the same time it's teaching recursion and TCO without them realizing it.
<baweaver> until I mention it at the very end.
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<Ox0dea> Maybe I just picked bad ones? Some of them would end up being really clean, but a lot of them'll be atrocious.
<baweaver> potentially
<Ox0dea> I hate that #index with a passion, and it's not even supposed to be in there; not sure how that bodes.
<baweaver> I'll rank them on annoyance later.
<baweaver> lazy I'm not doing
<baweaver> it's beyond my level of understanding to properly explain
<Ox0dea> Oh, I also tried to snag test/ruby/test_enum.rb, but it doesn't run correctly outside of the harness. :/
<baweaver> sounds about right.
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<roelof> Can someone help me figure out why rspec fails here ? https://gist.github.com/rwobben/991a5a6b19fb3586ec9a2255559a536d
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<baweaver> What does times return?
<baweaver> >> 1.times {}
<ruby[bot]> baweaver: # => 1 (https://eval.in/547143)
<baweaver> >> 4.times {}
<ruby[bot]> baweaver: # => 4 (https://eval.in/547145)
<baweaver> >> 4.times { :doesnt_matter }
<ruby[bot]> baweaver: # => 4 (https://eval.in/547146)
<baweaver> roelof:
<baweaver> also, make sure to use the .rb extension in gist for syntax highlighting
<oz> (check the yielded-value instead of the return-value)
<baweaver> ....?
<roelof> oke, so I have to find another way to yield several times so I can for example add 3 to it
<baweaver> n.times.reduce(yield, :+)
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<baweaver> though remember times starts with 0 on the index.
<roelof> so adder(3) does this for example ( 6.succ.succ.succ)
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<baweaver> >> 3.times.reduce(5, :succ)
<ruby[bot]> baweaver: # => wrong number of arguments (given 1, expected 0) (ArgumentError) ...check link for more (https://eval.in/547147)
<baweaver> >> 3.times.reduce(5, &:succ)
<ruby[bot]> baweaver: # => wrong number of arguments (given 1, expected 0) (ArgumentError) ...check link for more (https://eval.in/547148)
<roelof> baweaver: and :+ is the sames as sum += 1 ?
<baweaver> fine fine, just a sec.
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<baweaver> >> 3.times.reduce(5) { |a, _| a.succ }
<ruby[bot]> baweaver: # => 8 (https://eval.in/547149)
<baweaver> I keep forgetting reduce doesn't play nicely with shorthand blocks
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<baweaver> you're folding onto the yielded value (5) with the function succ essentially
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<baweaver> &ri Enumerable#reduce
<baweaver> Reduce admittedly has some nasty carryovers from older ruby...
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<roelof> baweaver: oke, but what if you do not know the number after the reduce , or it has to work with several numbers ?
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<baweaver> the initial value?
<roelof> yep
<baweaver> initial_value = block_given? ? yield : default_value_here
<roelof> for this test the initial values are zero and later 5
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<roelof> thanks, I will play and experiment with it
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<roelof> baweaver: last question how do I call adder with a block which has only the value 5 . I tried adder do { 5} end and adder do 5 end but both gives runtime errors ?
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<baweaver> >> def adder(n=1) n.times.reduce(yield){|a,_|a.succ} end; adder(5) { 1 }
<ruby[bot]> baweaver: # => 6 (https://eval.in/547159)
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<baweaver> >> def adder(n=1) default = block_given? ? yield : 1; n.times.reduce(default){|a,_|a.succ} end; adder(5) { 1 }
<ruby[bot]> baweaver: # => 6 (https://eval.in/547160)
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<baweaver> puts returns nil
<baweaver> so that code does not match to what you said.
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<baweaver> See the above
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<roelof> oke, and with 6 add 3 it looks like this adder(6) { 3 } ???
<baweaver> yep
<baweaver> though that's not really how an adder should work in any case.
<baweaver> A generic FP adder would take an initial value and return a function that can be called to continually accumulate
<roelof> wierd, when I look at the spec file I see this : expect(adder(3) do 5 end).to eq(8)
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<baweaver> use braces instead of do end when testing like that
<baweaver> easier to read
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<roelof> so I would expect to see adder(3) {5} ?
<baweaver> yep
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<baweaver> >> adder = -> init { -> n { init + n } }; add_3 = adder(3); (1..5).map(&add_3)
<ruby[bot]> baweaver: # => undefined method `adder' for main:Object (NoMethodError) ...check link for more (https://eval.in/547161)
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<roelof> Thanks, now I see it. I think I get up to early. Not complete awake
<baweaver> >> adder = -> init { -> n { init + n } }; add_3 = adder.call(3); (1..5).map(&add_3)
<ruby[bot]> baweaver: # => [4, 5, 6, 7, 8] (https://eval.in/547162)
* baweaver keeps forgetting lambdas can't be called with parens
<roelof> I thought I understand this after ruby monk but still a lot to learn :(
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<roelof> baweaver: thanks again and have a good evening/day
<baweaver> np
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<zenspider> baweaver: .call or []... so adder[3] would work
<zenspider> and... I think .() ?
<baweaver> yeah, I was getting used to scala again
<zenspider> but that's newfangled ruby
<baweaver> all 3 work
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<zenspider> and I rather don't like it :)
<baweaver> I just have a habit of using parens for it
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<baweaver> then I see the error and wonder for a few minutes, remember, and then realize what I did.
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<zenspider> *nod* me too
<baweaver> here's to hoping ruby 3 fixes that.
<zenspider> I just like [] over .call... just uglier
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<baweaver> or .()
<baweaver> that'd really confuse me at a glance
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<baweaver> call is the most explicit, [] almost gets me to think array/hash from a glance
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<baweaver> then again I'm using Scala heavily instead of Ruby for work now.
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<baweaver> about the same as using semicolons in ruby or accidentally console.log()ing everything
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<baweaver> context switch leads to interesting code some times.
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<colegatron> Hello.
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<Steve_Jobs> I can't seem to show the braille character on the command line that's part of the output of a program
<Steve_Jobs> ⡤
<Steve_Jobs> that looks like a square to me but should be braille
<Steve_Jobs> any ideas?
<Mon_Ouie> Looks fine here, probably just your terminal settings that don't render it as you'd expect it
<workmad3> Steve_Jobs: it's 3 dots here... sounds like you don't have a font installed with full unicode codepoints for your terminal
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<Steve_Jobs> workmad3: I tried all fonts.. which one are you using?
<Steve_Jobs> Mon_Ouie: what font are you using?
<workmad3> "I tried all fonts" really? There are millions of them :P
<Steve_Jobs> is it just the font?
<Steve_Jobs> workmad3: well the ones on this machine...
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<Mon_Ouie> My terminal uses Deja Vu
<workmad3> Steve_Jobs: I use OS X monaco for unicode code-points in iterm2 on my mac
<Steve_Jobs> ok.. xterm shows it.. weird
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<lxsameer> hey people, does ruby store or cache the VM bytecodes any where ?
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<Mon_Ouie> No, it recompiles everytime
<lxsameer> Mon_Ouie: hmm does ruby provides any solution to just run the bytecode ? I mean we give it to ruby as a param
<Mon_Ouie> Last time I check there was code to store/load bytecode to/from a file, but it's commented out for some reason
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<lxsameer> Mon_Ouie: hmmm thanks for the info, but I was wondering why ruby does not use such solution ( similar to python byte codes ) ?
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<Mon_Ouie> I don't know the answer to that, unfortunately
<workmad3> lxsameer: mostly because they're still moving towards it... ruby only went fully bytecode internally in 1.9, and hasn't hashed out all the details of what saved bytecode should look like yet
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<lxsameer> Mon_Ouie: thanks
<workmad3> the code Mon_Ouie pointed out for saving/loading bytecode is a step towards it (it was introduced in 2.3 iirc)
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<lxsameer> workmad3: happy to hear it
<lxsameer> workmad3: thanks for the info man
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<aep> is there a quick and dirty way to generate a rest commandline app that litteraly just calls some http stuff?
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<lxsameer> aep: on top of my head you can do it with e small hack on tor classes
<aep> tor?
<lxsameer> aep: yeah Tor gem
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<aep> uuuh
<lxsameer> it's a utility which allows you write cli apps more easily
<aep> ah!
<_ko1> lxsameer: FYI: https://github.com/ko1/yomikomu
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<lxsameer> _ko1: thanks koichi-san
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<rahc> how can I intercept any addition to an array object using a proxy?
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<rahc> apeiros recommended SimpleDelegator but I can't see how that will help beyond providing pre-made method_missing methods, etc.
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<jhass> rahc: redefine the methods you want to intercept on your SimpleDelegator subclass
<rahc> jhass: which methods would I need to intercept?
<jhass> &ri Array
<rahc> jhass: do you know which methods?
<jhass> go through the list, I'd probably miss a couple
<rahc> so you don't know
<rahc> thanks anyway
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<jhass> I'm simply not doing your work for you ;)
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<rahc> jhass: there are no expectations on you to do anything
<toretore> there isn't a single entry-point to adding values to an array
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<rahc> toretore: thank you
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<jhass> right, like compiling a comprehensive list of methods that could add elements to an array ;)
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<rahc> jhass: there is an exepectation on you to *not* do some things
<rahc> jhass: in particular, there is an expectation that you will refrain from responding to someone's question if you can't help them
<jhass> well, your question didn't contain the fact I added, that you should redefine the methods which add elements to your array
<rahc> jhass: you can't help me
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<toretore> rahc: these are the methods you have to override on Array to properly subclass or proxy it w/r to addition, afaik: ["self.from_array", "self.try_convert", "<<", "[]=", "collect!", "map!", "concat", "fill", "replace", "insert", "push", "unshift"]
<toretore> now stop being an ass
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<rahc> umm.. thanks
<rahc> I wasn't expecting someone to come out with a list but thanks :-)
<toretore> + initialize which takes args too
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<toretore> and Array.from_array doesn't exist
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<gregf_> should'nt implementing method_missing be enough?
<gregf_> >> class Foo; attr_accessor :arr;def initialize; @arr = [];end; def [](ind); @arr[ind];end; def method_missing(meth, *args, &bl); m = @arr.method(meth); m.(*args) if m;end;end;f = Foo.new();f.push(1).push(2).push(3).pop; p f # like that?
<ruby[bot]> gregf_: # => #<Foo:0x41c792f0 @arr=[1, 2]> ...check link for more (https://eval.in/547339)
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<rahc> gregf_: be enough for what?
<rahc> gregf_: that class doesn't solve my problem
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<gregf_> rahc: then im afraid you'll have to think a bit more ;)
<gregf_> btw, what jhass suggested was quite helpful imho :|
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<rahc> gregf_: you're confused
<rahc> gregf_: I'm not looking for help solving my problem
<rahc> I've moved on from the few minutes ago when I asked
<rahc> toretore was helpful
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<gregf_> rahc: looks like you're being a bit too curt.. when anyone suggests something .. you need to appreciate for what they do.. else no one will want to help :| *runs*
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<rahc> gregf_: on IRC, I've found there are two types of people: (1) people who are helpful, and (2) people who need to sit on IRC channels interacting with people giving obvious, useless or unhelpful suggestions in order to feed their own egos
<rahc> gregf_: I feel I don't need to appreciate the latter type
<sandelius> rahc BINGO
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<manveru> rahc: i can be both :D
<gregf_> rahc: so , which one do you belong to?
<gregf_> but meh.. *goes off to do some better work*
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<BlackW0lf> hi all im having an issue after i settup ruby for an application on my vps last week,
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<BlackW0lf> /usr/bin/env: ruby: No such file or directory
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<BlackW0lf> its ruby 2.1.5 and im running as root
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<BlackW0lf> looking around the internet ive found afew people having this issues with multiple solutions but none seam to work for me
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<BlackW0lf> anyone have any surgestions?
<djellemah> BlackW0lf: there are several ways to install ruby. Which one did you use?
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<BlackW0lf> generaly followed that guide, i worked untill i restarted the server now to run the app it just errors
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<jhass> you did the RVM step as root too?
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<BlackW0lf> yeah i would have
<jhass> well, you weren't supposed to
<BlackW0lf> ahh
<BlackW0lf> ok how do i restart quickly?
<jhass> https://rvm.io/support/troubleshooting second to last step to get rid of RVM
<jhass> s/step/entry/
<jhass> then just redo as user
<BlackW0lf> ty
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<aep> if i require a local .gem file in my Gemfile...
<aep> Using swagger_client 1.0.0 from source at ./ruby-client
<aep> how do i require that in my actual code?
<aep> require 'swagger_client' doesnt work
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<hanmac> i dont think require works that way
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<adaedra> aep: did you run your code with bundle exec?
<aep> oh duh. of course that was the solution, thanks adaedra
<adaedra> :)
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<aep> how do i catch the second argument in: fail SomeError.new(bla), "message" ?
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<voidDotClass> I have some code that looks like this: items.each do |item| process_item(item) end
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<voidDotClass> but that looks too verbose
<voidDotClass> in java i could do items.map( this::process_item)
<voidDotClass> is there anything like that here, e.g method references?
<aegis312_> There are for methods you would call ON the object
<adaedra> items.each(&method(:process_item))
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<voidDotClass> adaedra aegis312_ anything more readable?
<adaedra> no
<aegis312_> nope
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<aegis312_> adaedra: does that incur any overhead every time through the loop?
<adaedra> As aegis312_ said, if it were an instance method on item, you could have just done items.each(&:process_item)
<adaedra> aegis312_: no idea
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<aegis312_> Looks like it takes just a shade longer for something really simple: https://gist.github.com/jon2992/ea7de8f694910ddf5770867f4c707672
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<roelof> Hello, I have this challenge : Try changing the value of Argument::Truth in the following exercise. I did Argment::Truth = "No, you're not" but then I see a security error on Ruby Monk
<roelof> How to solve this ?
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<adaedra> link?
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<roelof> adaedra: link to the exercise ?
<adaedra> yes
<adaedra> You have a typo.
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<roelof> adaedra: thanks
<roelof> was looking for that one a long time :(
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<_aeris_> hello #ruby :)
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<_aeris_> i can’t find any doc about contributing and how to run test, and if possible test related to an extension :)
<_aeris_> i can run them with make test-all, but long :'(
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<greenbigfrog> How can I make sure that a certain ruby version is used for execution? f.e. that the script just exists if version is below 2.2
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<Mon_Ouie> You can check the RUBY_VERSION constant. Also for gems you can specify the required ruby version inside the gemspec.
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<Bish> hi, i might be stupid
<Bish> but how do i parse urlencoded queries with ruby?
<Bish> >> URI::Escape.unescpae "test=y"
<ruby[bot]> Bish: # => uninitialized constant URI (NameError) ...check link for more (https://eval.in/547395)
<leftpad> hmm, it seems kind of complicated to install ruby. Why don't they put installer releases on rubylang.org like https://golang.org/dl/ ?
<Bish> >> URI::Escape.unescape "test=y"
<ruby[bot]> Bish: # => uninitialized constant URI (NameError) ...check link for more (https://eval.in/547396)
<Bish> :(
<adaedra> require 'uri' is maybe what you want.
<adaedra> leftpad: for what system
<adaedra> ?
<Bish> nope, just didn't do that in that little snipped
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<leftpad> adaedra : OSX
<Bish> >> require 'uri'; URI.unescape "test=3&test2=5"
<ruby[bot]> Bish: # => "test=3&test2=5" (https://eval.in/547397)
<Bish> it's not what i want :( i want to parse that uri
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<shevy> URI.parse ?
<adaedra> leftpad: you have multiple solutions: used the 2.0 provided by recent OS X, use homebrew (brew install ruby, or for olders, brew install homebrew/versions/ruby21), use something like ruby-build or ruby-install, coupled with rbenv or chruby if you need to switch often or rvm which does all. It depends on your needs.
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<Bish> shevy: well that does parse the whole url, i just want to parse the query part ( after the ? )
<shevy> hmm that reminds me of the way how the CGI module makes a hash out of these
<Bish> quite simple problem, but i am unable to find the answer :D
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<Bish> i could sure, split by & and regex the rest, but there got to be a better way
<shevy> I don't remember how it does but it is stored in what .params method returns
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<shevy> hmm
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<Bish> HLEP
<workmad3> >> require 'cgi'; CGI.parse("foo=bar&fizz=buzz")
<ruby[bot]> workmad3: # => {"foo"=>["bar"], "fizz"=>["buzz"]} (https://eval.in/547398)
<havenwood> leftpad: Here's a walkthrough for ruby-install/chruby with OS X: http://ryanbigg.com/2015/06/mac-os-x-ruby-ruby-install-chruby-and-you/
<leftpad> adaedra : I'm sure rbenv and rvm are great (once I figure out how to use them). I tried brew but had to manually create a softlink to start using it. A nice ruby2.3.0.darwin-amd64.pkg would be nice to get started.
<shevy> huh strange
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<shevy> I just tested it in irb and it did not work. I am glad the bot called workmad3 got it to work! :D
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<adaedra> leftpad: bleh no.
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<Bish> workmad3: that's actually what i want, still do i really need CGI only for that?
<leftpad> havenwood : thanks
<havenwood> leftpad: Installing the brew package should create the link automatically if you don't have something in front of it. Would be happy to help get brew setup properly.
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<shevy> Bish it's really almost tiny, look at view source of params there: https://gist.github.com/shevegen/3c3b00860fb5bfb328f9a79dd06a3299
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<Bish> and why is the result an array?
<shevy> does an array start with {
<Bish> oh, i see already
<Bish> i mean the values of the hash
<workmad3> Bish: because then it can handle multiple params with the same name
<shevy> I guess you can change the method body to return a string value there
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<Bish> workmad3: yeah i figured
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<zlude> Hey! I'm learning ruby and how to parse JSON, there is a beautiful way to get the objects better than this? "puts player['playerstats']['stats'][0]['value']" ?
<shevy> is this not already beautiful ;)
<greenbigfrog> Mon_Ouie: ty
<shevy> you could probably replace the [0] with .first
<SebastianThorn> and ' with ", but that might just be me ;)
<shevy> there is also a hash-like variant with methods ... but I am not sure if this is a good idea
<oddmunds> there _has_ to be some library that lets you do puts player.playerstats.stats.first.value
<shevy> :)
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<SebastianThorn> .missing_method
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<adaedra> zlude: player.dig('playerstats', 'stats', 0, 'value')
<adaedra> (note, this is a bit different than yours)
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<zlude> adaedra, thx.
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<adaedra> zlude: #dig will return nil at first nil value instead of raising an exception, be careful if you don't want this behavior.
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<adaedra> oddmunds: there's ostruct, but it's not a good solution.
<oddmunds> yeah, maybe you can pack the whole thing in a bunch of classes
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<shevy> huh Saklovich
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<rahc> what does "||=" do?
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<rahc> I can't seem to find any documentation on it
<Donkoko> rahc: sets default value
<Donkoko> so if no value is passed, the variable/array will get the default value set by "||="
<rahc> I see
<rahc> thanks
<zlude> I have this array
<zlude> players = {
<zlude> 'fisune' => '76561198060075860',
<zlude> 'leo' => '76561198076788976'
<zlude> }
<zlude> how to get value from fisune or leo
<ddv> ugly syntax detected ^
<zlude> ddv, how's the best way to not ugly?
<shevy> did you not ask this just a moment before
<zlude> not the same thing
<SebastianThorn> that is not an array
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<SebastianThorn> players['leo']
<havenwood> zlude: That's a Hash.
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<havenwood> zlude: Ask it its class: players.class
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<zlude> but instead of player['leo'] it need to be a variable.. player['variable']
<SebastianThorn> you should do a 1-2h reading on ruby
<SebastianThorn> just loose the ''
<havenwood> zlude: That's a String, a local variable would be a bare word, no quotes.
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<shevy> zlude one way would be to define a method that does it; players = { 'fisune' => '76561198060075860', 'leo' => '76561198076788976' }; variable = 'leo'; players.fetch(variable); if you need it generalized, write a method that returns the proper entry
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<rahc> there is an attribute in a class, @assets, declared with attr_accessor
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<rahc> somehow the attribute is changing
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<rahc> Config id: 30405620, assets id: 30404500, paths id: 30404280
<rahc> the later..
<rahc> config id: 30405620, assets id: 30888300, paths id: 30887840
<rahc> I've created a method, "def assets=(value)"
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<rahc> in the class
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<rahc> I would expect it to get called when the assets attribute is assigned with the new object
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<rahc> however, this method doesn't print anything
<rahc> there is also no other code in the class that touches the object
<rahc> s/object/attribute/
<rahc> how could the object id of an attribute's value change, without the attribute being assigned to?
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<madgen> where is the code that calls this
<rahc> madgen: are you asking me?
<madgen> yup
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<rahc> there's a stack trace
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<rahc> madgen: any idea?
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<madgen> rahc: not really, but the chances are you have a configuration error in your Rakefile rather than rails being broken
<madgen> also when you say later the object id changes do you mean in successive runs?
<rahc> madgen: no, same run just later in execution
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<madgen> It may be a different instance of Configuration
<rahc> madgen: there's the Rakefile
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<rahc> madgen: the object id for the configuration class is the same
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<rahc> that's the "config id" at the start of the lines I pasted into the channel above
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<madgen> hmm, sorry not entirely sure, but if i were you i'd check the following /srv/www/obs/api/config/application.rb:10:in `<top (required)>'
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<rahc> madgen: check it for what? :-)
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<rahc> class Application < Rails::Application
<rahc> that's the line
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<rahc> which is as one would expect
<rahc> that just initiates the instantiation of the Application class
<rahc> how can I determine what is changing the assets attribute?
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<rahc> if "assets=" doesn't catch it, is there anything else that will?
<rahc> there surely must be otherwise it would be the same object id
<brent_> I'm trying to run bundle and it keeps failing due to inability to install eventmachine 1.0.3
<rahc> so the question is: what
<rahc> ?
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<brent_> though i have eventmachine 1.2 installed fine
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<havenwood> brent_: This fails for me as well: gem install eventmachine -v 1.03
<brent_> can i alter the gemfile.lock and change the eventmachine version listed
<brent_> right, can't figure out why
<havenwood> brent_: bundle update eventmachine
<brent_> it says to find a lock at specific location, but no log exists
<brent_> log*
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<brent_> havenwood: looks like that got past eventmachine now fails on json v 1.8.1
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<brent_> should i do the same for json?
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<havenwood> brent_: 1.8.1 is a few years old so worth a shot.
<brent_> huzzah! bundle update eventmachine json worked
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<havenwood> brent_: nice
<brent_> thanks for the tip
<havenwood> you're welcome
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<brent_> havenwood: is 'bundle update *packages' the same as 'bundle' without updating necessary package versiosn?
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<havenwood> brent_: Just `bundle` is `bundle install`. See: bundle help update
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<brent_> okay, so do budnle update, then bundle install
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<havenwood> brent_: Typically you don't often use `bundle update` unless you're updating specific gems, since it changes the Gemfile.lock possibly dramatically.
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<havenwood> brent_: A `bundle install` will install the gem versions from the Gemfile.lock.
<havenwood> brent_: For an app you want everyone using the same gem versions, and typically you don't want to break things, so you bundle to install the Gemfile.lock gems.
<brent_> okay
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<havenwood> brent_: For a gem's bundle you add the Gemfile.lock to the .gitignore and you bundle to freshly resolve the deps. See more about why: http://yehudakatz.com/2010/12/16/clarifying-the-roles-of-the-gemspec-and-gemfile/
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<brent_> thanks, i'll take a look
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<brent_> would you possibly know about this error? http://hastebin.com/zeloyoyuso.vbs ran right after bundle isntall
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<havenwood> brent_: Try prefixing the command with: bundle exec
<havenwood> brent_: bundle exec rake ...
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<havenwood> (That runs the command from the "context of the bundle" (using the specific gems from the Gemfile.lock))
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<brent_> that worked
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<brent_> havenwood: do you have a tl/dr summary of what rake does? i'm going over it's github page, but sounds like it has many uses?
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<jaroslav> brent_: rake ~= Ruby Make
<jaroslav> it's not 100% true, but imho quite a good approximation
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<jaroslav> (that will not help much, if you don't know GNU Make)
<brent_> so in my exmpale above, the rake db:create db:migrate db:seed, was making a database w/ those features?
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<jaroslav> brent_: tldr version would be that rake is a simple specific language which allows to easily describe 'tasks' and dependencies between them
<jaroslav> brent_: simple scenario that comes to my mind would be: imagine you are writing ruby code, and you want to publish it as a gem
<jaroslav> brent_: before publishing new version of that gem, you'd like to run tests
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<jaroslav> brent_: so the whole sequence would be: 1/ run tests, 2/ if they succeed, build gem, 3/ push gem to gemserver
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<jaroslav> brent_: in Rakefile you can define a task 'publish' which is responsible for pushing gem to gemserver, and declare it as *depends* on building gem
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<jaroslav> brent_: then the task 'build' and task 'test', with appropriate dependencies described
<jaroslav> brent_: when you have all of that, you can simply do: 'rake publish'
<jaroslav> brent_: and it will make sure tests are run, gem is built, and only then it is pushed to server
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<brent_> jaroslav thanks for the explanation, does give me an understanding
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<brent_> so rake's commands are limited to what in the Rakefile correct?
<shevy> it's ruby code
<jaroslav> brent_: it doesn't necessarily have to be a file called 'Rakefile', but yes, rake can only perform tasks that are described *somewhere*
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<brent_> this is the rakefile http://hastebin.com/kixodeqece.pas included. Curious how that 'rake db:create db:migrate db:seed' command relates to taht
<jaroslav> brent_: as you see this file requires ../config/application
<jaroslav> and runs a #load_tasks method of Application class
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<jaroslav> brent_: find that fili, open it, and find the method load_tasks -> you'll figure out where does it read tasks from
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<jaroslav> brent_: that way you would be able to see what are the possible tasks available, and what they do
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<brent_> jaroslav, appears to be a module w/ an empty class
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<brent_> i do appreciate the explanation, really helped clear it up
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<jaroslav> brent_: no problem, maybe it's in a different file
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<jaroslav> brent_: just go to the main directory of that app, and run: # grep -R "db:create" .
<jaroslav> brent_: yes, there is a dot at the end, after space
<jaroslav> brent_: it will show you all the files, where "db:create" string can be found
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<brent_> hmm, nothing
<jlebrech> I want to do a nested group_by of an array then run aggregate methods on the grouped data. where can i find a decent book or blog on this?
<brent_> i did find a db folder w/ seeds.rb and a migrate folder
<jlebrech> I can do this in sql very easily, but I want it all in memory
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<shevy> a whole book about group_by? :D
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<shevy> guess the primary resource would be the official docu http://ruby-doc.org/core-2.3.0/Enumerable.html#method-i-group_by
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<jlebrech> shevy: sure, difference examples as alternatives to sql
<jlebrech> I want to nest group_bys
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<apeiros> jlebrech: I suggest you just do it and show the code here
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<Guest13> guys, I've just installed rvm + ruby, but now every time I open a tab on terminal on OS X it start executing something in background for 1/2 sec...
<Guest13> any idea?
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<mozzarella> the rvm script?
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<Guest13> mozzarella yes
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<Donkoko> Hey everyone. I am trying to generate an xml in my Rails app(3.2). For some reason the builder doesn't like the `.tag!` method and it completely breaks the response. Any ideas? https://gist.github.com/DonKoko/6595d5491fc2d2688aa144c43785a25f
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<karioleez> Does anyone have any experience with ioctl and its interface with ruby ?
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<a1fa> is there a way to automatically convert a file to utf-8 from * while doing CVS.foreach? also, is it possible to make CVS.foreach accept headers that are not quoted?
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<RickHull> a1fa: you may need to instantiate CSV first
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<RickHull> CSV.new(file_contents, options).each do row # rather than CSV.foreach(filename) do row
<RickHull> the options hash should provide what you need
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<a1fa> RickHull: i see
<smathy> a1fa, there are gems out there which guess at encodings based on the prevalence of common/likely word-like characters.
<smathy> a1fa, but the real answer is: tell your users to give you a UTF8 encoded file.
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<a1fa> thanks smathy, i am just preparing for the inevitable
<smathy> a1fa, and rescue ArgumentError and fail back to your user telling them that their file wasn't UTF8
<a1fa> not a bad idea. i will do that
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<a1fa> RickHull: foreach also takes the same options hash
<a1fa> unless we are talking about HeaderConverters.. ?
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<smathy> a1fa, none of those options will help you with the encoding of the incoming file.
<kellabyte> how did people do things before the dig method? I need to make something run on an older version of ruby
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<apeiros> they wrote code
<a1fa> smathy: that was a follow up on my 2nd question, regarding of unquoted headers
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<a1fa> smathy: csv files suck, especially with new lines in them
<kellabyte> was there another less than ideal but somewhat elegant way to solve what dig does?
<smathy> a1fa, ahh - heh, sorry, I didn't see it.
<kellabyte> apeiros: thanks for that answer lol
<a1fa> smathy: no worries -- honestly, i'd rather not use csv. but people like their "sheets"
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<smathy> kellabyte, they chained conditionals, or wrote their own version of dig.
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<shevy> kellabyte usually by calling a method which will handle the access properly
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<kellabyte> ok that makes sense, thanks
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<Noldorin> what does this mean?
<Noldorin> ERROR: Loading command: install (LoadError)
<Noldorin> failed to load encoding (Windows-31J)
<Noldorin> ERROR: While executing gem ... (NoMethodError)
<Noldorin> undefined method `invoke_with_build_args' for nil:NilClass
<Noldorin> doing a gem install
<shevy> what is the name of the gem?
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<Noldorin> shevy, rmate
<shevy> hmm
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<shevy> the gem author probably did not anticipate this encoding or the error setup
<shevy> aha
<Noldorin> shevy, it's on an embedded Linux so maybe that's not helping?
<shevy> what ruby version do you use?
<Noldorin> 2.2.3
<shevy> hmm ok
<shevy> thought that could be a problem but is not
<shevy> one line was: $KCODE = "U" if RUBY_VERSION < "1.9"
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<shevy> the gem author is probably not very experienced
<shevy> the file in the lib/ subdirectory is a 100% copy paste of the file in the bin/ directory
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<Noldorin> I see heh
<Noldorin> shevy, so what's the easiest fix?
<shevy> rmate.rb is https://gist.github.com/shevegen/4ccbe4a3449c1b32892d6568472cf9d9 - but I think the author probably never tested it on windows or that encoding; there is not a lot of code there though, you can probably copy/paste it and try to load it and see what part fails exactly
<shevy> I am not sure
<shevy> copy paste that file into a local file and try to run it?
<Noldorin> to be honest I don't know a lot about gem files (barely anything)
<shevy> perhaps the encoding
<Noldorin> I'm not on Windows FYI
<shevy> yeah but you get some encoding error
<shevy> I did a gem install and it worked for me
<Noldorin> yes. windows encoding?
<shevy> have a look at strings such as: "Connect: ‘#{server_info}’"
<shevy> I don't get a proper output from that
<shevy> no idea what is Windows-31J sorry; the gem seems to work on my linux system though :)
<Noldorin> yeah heh
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<shevy> it's not a lot of code though, only 200 lines
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<miah> ^- windows-31j
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<Noldorin> shevy, miah I'm quite the noob when it comes to ruby/gem. what do I do now? :)
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<shevy> hmm
<shevy> provided that the code would work on your system
<shevy> can you start irb?
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<Noldorin> it used to work some time ago...I don't know about this newer version though
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<shevy> guess that is the end :)
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<karioleez> has anyone worked with ioctl and ruby ?
<Noldorin> shevy, yep :)
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<Noldorin> shevy, so?
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<shevy> Noldorin what so?
<Noldorin> shevy, sorry, I thought you were going to tell me how to get around this encoding issue..
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<shevy> ah
<shevy> I have no idea about this encoding
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<Noldorin> okay hm
<shevy> I am also not sure how you have it either, you wrote:
<shevy> <Noldorin> I'm not on Windows FYI
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<Noldorin> shevy, I'm thinking because the Gem file is written in a Windows encoding?
<shevy> I don't think so, it works fine here
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<shevy> >file rmate.rb
<shevy> rmate.rb: a /usr/bin/env ruby script, UTF-8 Unicode text executable
<Noldorin> shevy, okay. so this actually happens with *any* gem. wow.
<shevy> something must be weird in your setup
<shevy> my gem version is 2.6.2
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<shevy> and you wrote that it happened before
<shevy> you did something naughty!
<Noldorin> aha!
<shevy> btw did you try to manually download the .gem, and then run: "gem install ./*.gem" on it? wget https://rubygems.org/downloads/rmate-1.5.8.gem
<shevy> ack
<shevy> aaaah
<Noldorin> hehe
<shevy> I found a gem that had only text written in cyrillic yesterday
<shevy> the author was even using ruby gtk3
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<shevy> it also worked on my system but I can't read anything
<Noldorin> impressive
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<shevy> hehe
<shevy> the gem name was bconv... let me show a partial screenshot
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<shevy> that was it http://shevegen.square7.ch/screenshot.png ... the black background is just from kde konsole terminal, the rest is the gtk3 widget
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<shevy> obviously it does something with resolution :P
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<Noldorin> what are you using it for? :)
<Noldorin> heh
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<shevy> I was not really using it, just testing it out since I use ruby-gtk too
<shevy> the structure was defined in a big XML file though
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<shevy> glade... I don't like XML :(
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<Noldorin> I see
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<Noldorin> all working now \o/
<shevy> cool
<shevy> you wrestled encoding into submission
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<Noldorin> shevy, also, who does like XML? :P
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<Noldorin> indeed
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<shevy> yeah well
<Noldorin> there was some ruby-enc-extra package that fixed it. also just upgrading to entware-ng
<shevy> I think these big XML files are generated by some editor, so perhaps it is really easy to build up widgets like that, if you use such an editor
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<shevy> like you have those widget-building thingies on windows
<Noldorin> I see
<shevy> for ruby, I like the approach from the old shoes more ... http://shoesrb.com/
<Noldorin> shevy, I used to do WPF from the XML end on Windows... that was 'fun'
<shevy> Not necessarily that specific API... but something like that would be nice for ruby-gtk / ruby-gnome.
<shevy> hehe
<Noldorin> shoes looks cool
<Noldorin> yeah
<shevy> yeah it was a very cool idea when it was written... already like 10 years ago or so...
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<Noldorin> shevy, yeah. just hasn't been updated/modernised for other graphical toolkits it seems?
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<frem> Shoves was never supposed to really fit in with other desktop apps, it seems like. _why liked kinda quirky one-off things.
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<frem> Hopefully the JRuby port will make it easier for them to maintain compatibility with newer toolkits.
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<frozenfoxx> Could anyone give me a quick-n-dirty way to reopen $stdin for writing? I know you're normally not supposed to but for testing a particular bit of code that works perfect with ARGF but not at all with other forms of input it would help me greatly.
<frozenfoxx> Basically so I can do a "$stdin << "some string" " or "ARGV << "some string" "
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<shevy> $stdin.reopen ?
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<smathy> frozenfoxx, you can't write to $stdin.
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<smathy> frozenfoxx, I doubt that you're really asking the right question here, are you trying to test something that reads from stdin and you want to stub $stdin out so it returns a known string you want to provide in your test?
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<smathy> frozenfoxx, $stdin = StringIO.new "foo"; gets # => "foo"
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<Ox0dea> You can totally write to stdin.
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<Ox0dea> It's how modern terminals provide mouse support, for instance. You enable that mode with some escape sequence, and then it writes coordinates and button states to stdin.
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<frozenfoxx> shevy: hmm, interesting.
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<frozenfoxx> Ox0dea: I thought you could, yeah.
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<Ox0dea> frozenfoxx: That said, your mentioning `$stdin << foo` and `ARGV << foo` in the same breath does not bode well.
<Ox0dea> Those are just... very different things.
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<frozenfoxx> Ox0dea: making either work would be fine for my test, though I really wouldn't be too happy if it's "the" solution as there should be a cleaner way to do it. If you want to know the whole context, the code I'm working with is here: https://github.com/frozenfoxx/hack-doom/blob/master/gloom/app/channels/doom_channel.rb
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<frozenfoxx> Essentially if you replace line 29 with line 30 and punch in text in the console you started the rails app in, everything works appropriately. It blocks until you enter text and hit enter, and outputs it from line 31 as you'd expect.
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<Ox0dea> frozenfoxx: Do you know what ARGF is?
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<frozenfoxx> If you do this with the pipe, it either infinintely blocks on line 29 (never moves forward ever, even if you write into $inpipe) OR if you change it for "while line = @outpipe.gets" then it infinitely spams "nil" which is the default you pull out of the pipe.
<frozenfoxx> Ox0dea: Yes, the continuous stream of arguments from the launching of the program.
<Ox0dea> frozenfoxx: No, that's not quite right.
<Ox0dea> You've got ARGV and ARGF conflated.
<smathy> Ox0dea, well sure, the system writes to the other side of stdin, as it does with anything we read from stdin, but just because your keyboard "writes to stdin" that doesn't mean STDIN is writable in this context of a ruby test.
<Ox0dea> smathy: Sure, I concede that it'd have to be reopened, but there's nothing special about /dev/fd/0 that prevents it being opened for writing.
<frozenfoxx> Ox0dea: as a special note, I *don't* want to try to use either $stdin or ARGF for this, it just happens to be doing exactly what I want right now. I figure if I can understand how that works then I can try to make something similar that will do what I want.
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<frozenfoxx> I just currently fail to understand what I'm doing wrong with the pipe *or* what I should replace it with since it either blocks forever or spams nil forever.
<shevy> hehe
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<shevy> a nil-spam pipe
<frozenfoxx> Ox0dea: last time I checked ARGV was the array and ARGF was the stream from it, but admittedly I could be totally wrong
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<Ox0dea> frozenfoxx: I guess it makes sense to think of it that way, but the stream is wrapped around *all* the file arguments, and defaults to $stdin.
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<frozenfoxx> Ox0dea: gotcha. For my purposes it's probably most correct to say to allows ARGV to be written to, it just would happen to work by accident if I did it with $stdin as well. Really the "right" answer though is I need to know what I'm doing wrong with the IO.pipe OR find a replacement.
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<frozenfoxx> Ox0dea: From what I understand "@outpipe.read" *should* block...unless it gets a string in it from @inpipe.write. I've tried it with "a string" and "a string\n" and neither seems to work, just sits there forever.
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<frozenfoxx> And then the "while = @outpipe.gets" spams nil infinitely since that's the default value in a pipe, doesn't matter if I try to write to @inpipe.puts "a string", it never gets there through all the nil spam either. I feel like I'm using the wrong tool since ARGV and the console does this perfectly, but I need it to do this from the "def relay()" instead of the console.
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<frozenfoxx> I just feel like I'm missing something obvious.
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<Ox0dea> frozenfoxx: What's the IO.pipe for when you're using #popen2?
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<Ox0dea> At any rate, see what happens if you just nix the `.read` on Line 29.
<Ox0dea> That's blocking because you're asking it to consume what it can only assume is infinite input.
<Ox0dea> Streams can be processed "lazily" if you just ask for their lines as an enumeration (#each_line).
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<frozenfoxx> Ox0dea: the #popen2 is for supplying input/output in realtime to an external process without blocking it (hence the Thread.new). I was thinking I could try the same thing, but I wasn't sure it would work.
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<frozenfoxx> Ox0dea: that makes sense about the .read, 'll try that when I get home
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<Ox0dea> frozenfoxx: #popen2 gives you either side of a pipe.
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<Ox0dea> The IO.pipe call there and what you're doing with the results is the source of my confusion.
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<braderhart> Anyone able to help debug getting an old Ruby app running in a new enviornment?
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<havenwood> braderhart: Ask away.
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<braderhart> havenwood: Thank you. I'm going to reimport source to start from scratch and then I'll show the errors I get
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<frozenfoxx> Ox0dea: Hmm, I see.
<frozenfoxx> Ox0dea: it's entirely possible I got wayyyyy too down in the weeds to see I could've just been using the Open3 command variables as class variables to access outside of it. Thanks for bringing it up, I had a feeling this was way too hard and that'd be why
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<frozenfoxx> Ox0dea: I'll give all of those (remove the .read, and just use the straight-up variables I created earlier as class varaibles) a shot tonight.
<Ox0dea> frozenfoxx: Well, you'll catch flak from certain folks for introducing instance variables outside of #initialize, but it's not a sin or anything.
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<frozenfoxx> Ox0dea: I think with what I'm doing it's already a sin. The Rails folks told me when I had a question about the websocket implementation "don't use beta software." Which would be fine, if I could accomplish this without it (i'm *not* a web dev, more devops and security)
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<Ox0dea> They tell people not to use Action Cable in #RoR?
<braderhart> havenwood: Okay.. first issue after running bundle install I get... Fetching https://github.com/platform45/gdata.git
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<braderhart> Then a prompt for a Username
<frozenfoxx> Ox0dea: yep, just last week.
<Ox0dea> Interesting.
<braderhart> So I should modify that Gem to use a new URL... correct?
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<shevy> there be madness on that channel!
<braderhart> Do I modify just the Gemfile or the Gemfile.lock?
<frozenfoxx> Ox0dea: I'll be honest, I don't get it. Rails 5 has already been great for me, I just didn't fully understand how to hook it up.
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<frozenfoxx> Ox0dea: this is literally the *very* last piece of my multi-month project and Rails made the rest of the standup so easy for a newbie like me that I can really understand why people like it.
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<frozenfoxx> ...then I made the horrible mistake of saying I was new but needed ActionCable.
<frozenfoxx> The last time I asked about this stuff (faye, em-websocket, etc) I was told to use Rails 5 since ActionCable is about to make all that pointless, so I wasn't super-happy about it.
<havenwood> braderhart: Do you know where the gem currently lives?
<frozenfoxx> Anyway, enough of me ranting on, sorry about that. I really appreciate the help everybody, I can't wait to try this tonight.
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* frozenfoxx reallllllly likes using Ruby, especially in a system capacity and with Puppet
<braderhart> havenwood? I believe there should be a local copy on production and then I have a Gemfile.lock that shows a version
<braderhart> So I'm guessing this is it: https://rubygems.org/gems/gdata/versions/1.1.1
<havenwood> braderhart: What does the Gemfile.lock line say?
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<havenwood> braderhart: Do you know why someone forked the project and pointed it to the repo instead of the gem itself?
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<braderhart> Nope, unfortunately I'm just tasked with trying to get the app running in a new enviornment
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<ruby[bot]> braderhart: we in #ruby do not like irccloud.com, I reposted your paste to gist for you: https://gist.github.com/5a57cb85a87b5722e84e943b7662c9f7
<ruby[bot]> braderhart: irccloud.com has no syntax highlighting, distracting formatting and loads slowly for most.
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<Radar> oh snap
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<braderhart> :-P
<braderhart> Nah, ruby[bot] is cool with buggy bots!
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<benzrf> braderhart: using irccloud?
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<benzrf> shame on you
<benzrf> don't you know that service as a software substitute is killing freedom
<benzrf> smh
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<braderhart> yep... fully aware that i should be setting up my own irc bouncer with a db for chat history, etc
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<adaedra> ZNC ♥️
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<benzrf> braderhart: znc is pretty easy to set up :)
<braderhart> i'll get there again soon
<benzrf> but i was being ~70% facetious
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<braderhart> for now let's not pick on the irccloud newb too much
<goglosh> how do I reference the function + ?
<braderhart> maybe you can help me with my gem issue and then i'll setup znc to appease the haters
<Mon_Ouie> There isn't a function +, there are multiple methods called + in different classes
<goglosh> oh...
<Mon_Ouie> >> [Fixnum.instance_method(:+), Float.instance_method(:+)]
<ruby[bot]> Mon_Ouie: # => [#<UnboundMethod: Fixnum#+>, #<UnboundMethod: Float#+>] (https://eval.in/547577)
<Mon_Ouie> Also see Object#method
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<goglosh> thanks that solves my doubt :)
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<goglosh> and the action of sending a message
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<goglosh> is it a language object in itself?
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<goglosh> like... is object.foo syntactic sugar for something like main.send_message(object, :foo) ?
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<Ox0dea> >> 17.send :+, 25 # goglosh
<ruby[bot]> Ox0dea: # => 42 (https://eval.in/547585)
<Ox0dea> So yeah, that's a viable way to think of it, even if it's not actually what's happening under the hood.
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<goglosh> Ox0dea: awesome.
<goglosh> What actually happens though?
<adaedra> Magic.
<Ox0dea> Your code gets parsed and compiled down to bytecode, then that's what gets interpreted.
<goglosh> oh of course
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<Ox0dea> There's a dedicated VM instruction for #+, for instance.
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<Ox0dea> >> RubyVM::INSTRUCTION_NAMES.grep /plus/
<ruby[bot]> Ox0dea: # => ["opt_plus"] (https://eval.in/547586)
<goglosh> efficiency?
<Ox0dea> The "opt" means "optimized", yeah.
<goglosh> there's access to the VM as well?
<Ox0dea> You can get hold of pretty much any aspect of the system, but the VM is finicky.
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<Ox0dea> Some insight: https://eval.in/547587
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<goglosh> I understand 1% of that
<goglosh> :putobject
<goglosh> it's a stack-based VM then?
<Ox0dea> You got it.
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<goglosh> this is fun
<Ox0dea> Welcome to Ruby. :)
<goglosh> :) thx
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<Steve_Jobs> I have need to maintain and deploy to an old 10.10 ubuntu server with ruby 1.9.2
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<Steve_Jobs> any issues with trying to work with these old versions
<shevy> you have my comforts
<Steve_Jobs> :(
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<Steve_Jobs> as long as I can develop against a 14.04 image with ruby 1.9.2 and use capistrano
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<shevy> as long as ruby itself is functional
<goglosh> can't you upgrade?
<Steve_Jobs> no :/
<goglosh> also what makes an ubuntu version different from another?
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<shevy> if you have access to $HOME or /tmp and have a compiler
<havenwood> Steve_Jobs: Brightbox maintains Ruby package for Ubuntu: https://www.brightbox.com/docs/ruby/ubuntu/
<goglosh> what good is an operating system if it can get deprecated?
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<havenwood> Steve_Jobs: 1.9 and 2.0 are past end-of-life so you'll need to provide security patches yourself or get them from a non-official source.
<Steve_Jobs> there's a legacy install that everyone is afraid to touch
<Steve_Jobs> v2 an v3 will be modern stuff and upgraded regularly
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<Steve_Jobs> but v1 needs to be around for a few months and some functionality added
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<Steve_Jobs> the consesus is that upgrading would be more effort
<workmad3> "Needs to be around for a few months" - code for 'this crap ain't never going away'
<shevy> :)
<Steve_Jobs> workmad3: I would ordinarily agree
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<workmad3> Steve_Jobs: just ignore me btw, I get cynical after 10pm :)
<Steve_Jobs> I'm always cynical :)
<workmad3> Steve_Jobs: well yeah... I'm cynical before 10pm too ;)
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<Steve_Jobs> anyway.. this little adventure will be "fun"
<goglosh> just
<goglosh> stay away from hammers and the like mkay?
<Steve_Jobs> so the web app will be on one docker image and the db on another
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<Steve_Jobs> just for dev on ruby 1.9.2
<Steve_Jobs> then capistrano is there for deployment
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<Steve_Jobs> an old version of that :/
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<Steve_Jobs> havenwood: thanks for the link
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<Steve_Jobs> if I have a docker image with 1.9.3 on it, how easy is it to downgrade it to 1.9.2 in the dockerfile?
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<havenwood> Steve_Jobs: What breaks in 1.9.3 that works in 1.9.2?
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<baweaver> havenwood: a lot
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<baweaver> It was a breaking change iirc
<baweaver> though why in the world someone's using either is another very relevant question
<baweaver> considering they're both long deprecated
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<Ox0dea> s/prec|te//g
<baweaver> took me half a second
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<Ox0dea> I'm glad you're not my computer.
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<shevy> lol
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<Steve_Jobs> baweaver: thanks. yes we knew that
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<baweaver> put simply the jump from 1.9.2 to 1.9.3 was more major than 1.9.3 to 2.0.0
<baweaver> though even 2.0.0 is reaching end of life soon if it hasn't already.
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<baweaver> "maintenance of Ruby 2.0.0 will be ended at Feb. 24th, 2016" - yep
<baweaver> anyways, short story is someone needs to be kicked for not getting those upgraded because that's a critical security risk
<Steve_Jobs> I was saying that from the get go
<havenwood> baweaver: I mean in Steve_Jobs' app! :P
<baweaver> ah
<Steve_Jobs> havenwood: too much code to determine
<havenwood> a.k.a., which tests fail.
<Steve_Jobs> lol
<havenwood> ;P
<baweaver> there's a relevant stacktrace somewhere in there.
<baweaver> otherwise how would you know it's broken?
<Steve_Jobs> you think this has proper test coverage? what do you think this is, Disney Land? :)
<baweaver> Ask bricker, they don't have proper coverage there either
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<baweaver> anyways, there's a stack trace that you saw. Put that in a gist.
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<baweaver> without code or something to work with, we can't help you.
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<baweaver> work on isolating at least one case where it's broken and let's go from there.
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<Steve_Jobs> baweaver: well, i'm going to try to see if brightbox can instal 1.9.2-p180
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<shevy> he is too ashamed to reveal the stack trace
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<baweaver> can't help what we can't see
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