baweaver changed the topic of #ruby to: Rules & more: https://ruby-community.com || Ruby 2.4.0, 2.3.3 & 2.2.6: https://www.ruby-lang.org || Paste >3 lines of text to: https://gist.github.com || Rails questions? Ask in: #RubyOnRails || Logs: https://irclog.whitequark.org/ruby || Books: https://goo.gl/wpGhoQ
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<sparr> I'm seeking code review / feedback on my first big from-scratch ruby script. I'd like to do things more "the ruby way", and would appreciate pointers in that direction. https://github.com/sparr/rollingstock-squib/blob/master/rollingstock.rb
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<Papierkorb> sparr: avoid using global variables, like on line 26. Looks more like a mishap though.
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<sparr> Papierkorb: was intentional, so the function on line 265 could access them
<sparr> and also the function on 291
<sparr> I think where I might want to go with that is to wrap all of the functionality in a class and make SHARE_PRICES a property that all the methods can read
<Papierkorb> Line 259, trailing if after a huge block
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<sparr> yeah, rubocop didn't like that either :( I want to be consistent between all the blocks. I'm kinda hoping to find a better paradigm for the whole setup of having a dozen true/false constants to turn a dozen blocks on and off
<sparr> maybe put each block in a function, then just have a short series of conditional calls to the functions
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<Papierkorb> So, what I don't like is the size of the whole thing. Cut it into separate files, that would already make it much better
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<sparr> I'm not sure how to do that yet
<Papierkorb> You could e.g. put every card into its own file. Maybe you can subclass from Squib::Deck - I don't know squib.
<Papierkorb> That way you split up the condition from the construction, which with the file separation, is already a good improvement
<sparr> I mean, I don't know how to load/run/call the contents of those files after I split it up
<Papierkorb> You'd use `require_relative`
<sparr> ok, thanks, I shall try that. I, too, am unhappy with the size of the file
<sparr> Any tips on deduplicating the common code from all/most of the Squib::Deck blocks?
<Papierkorb> I also don't really like the size of the deck blocks, although avoiding that may be cumbersome. Some cards probably share a fair chunk of the layout, so maybe these could inherit from one another.
<sparr> https://github.com/sparr/rollingstock-squib/blob/master/rollingstock.rb#L253-L258 that part looks very similar across many blocks
<sparr> can I put that in a function and call the function from within the block?
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<Papierkorb> That'd be the step after splitting the file up. I don't know squib, but there sure is a way. Maybe you can call the rect, save, etc. methods on the instance too, and not only in the block. Then, you could move the common parts into methods which do these calls
<sparr> I'll try that, after the split up
<Papierkorb> sparr: You can't the way it's setup. Or maybe you can, it really depends on how Squib does the block stuff. Hard to say
<Papierkorb> You could try and see if it throws a NoMethodError when you call your method, or read in their docs (if they cover this)
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<Papierkorb> sparr: This is a card game? Looked a bit like monopoly
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<Papierkorb> https://github.com/sparr/rollingstock-squib/blob/master/rollingstock.rb#L211 you can merge all these duplications by "outsourcing" the translation part
<Papierkorb> Which will save you 50 lines or so already
<Papierkorb> https://github.com/sparr/rollingstock-squib/blob/master/rollingstock.rb#L288 prefer string interpolation: ` "$#{min} - $#{max}" ` over doing that
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<marchelzo> hello
<Papierkorb> See how much nicer it is to not having to write to_s all over the place
<marchelzo> how do i access globals in a method
<marchelzo> like in a .rb file i have x = 10, then def foo; puts x; end
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<Papierkorb> marchelzo: That's not a global variable, methods don't inherit the variables of the parent scope
<marchelzo> so what do i do
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<Papierkorb> marchelzo: Use a class instead
<marchelzo> u for real?
<Papierkorb> Yes?
<marchelzo> i don't like that solution
<marchelzo> is there anything else i can do?
<sparr> Papierkorb: sadly the translation doesn't work well through a library; I do need the second big block of text :( Thanks for the string interpolation idea, I learned about that functionality AFTER writing all of this.
<Papierkorb> sparr: But you can move the whole translation block outside, e.g. LABLES = { english: ..., german: ... }
<Papierkorb> sparr: And then either pass the wanted language to the class you're creating, or store the application-wide language somewhere else
<Papierkorb> sparr: That's not perfect, but it's an improvement
<marchelzo> Papierkorb: what do you think
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<Papierkorb> sparr: Later on, if you don't want/can't use one of the existing localization gems, you could probably dump all texts from your game into a YAML file which you read upon starting the game
<Papierkorb> marchelzo: Why don't you like that?
<marchelzo> it doesn't make sense here
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<marchelzo> conceptually this is not a class
<marchelzo> i just have some state that i need access to
<Papierkorb> marchelzo: a toy script doesn't cover the real world
<marchelzo> i'm sorry?
<Papierkorb> sparr: If you haven't already, consider drawing (yes, drawing) the application structure (classes, which inherits from what, ..) on a piece of paper, or sticky notes (my all time favorite).
<marchelzo> it doesn't make sense. toy or no toy, class is the wrong tool here.
<Papierkorb> marchelzo: What's your real problem?
<marchelzo> my real problem is that i have some global state, and i want to make some methods that mutate the global state
<Papierkorb> marchelzo: Why do you know it's the wrong tool?
<Papierkorb> marchelzo: classes. If you want to write bad code, use a proper global variable.
<marchelzo> because classes are for describing objects
<Papierkorb> And state is not an object?
<Papierkorb> That's the definition of an object
<marchelzo> classes that never get instantiated or extended are bad
<Papierkorb> Aha
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<marchelzo> Papierkorb: Aha?
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<marchelzo> Papierkorb: running into another problem
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<Nox_> Hello there, I'm having troubles with setting up ruby, I'm on Windows 10 and I followed the DevKit instructions (the json thing is working) but when I try "gem update" I get the " Error installing [GEM_NAME]: ERROR: Failed to build gem native extension."
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<marchelzo> Papierkorb: are you there
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<adrianvalenz> Hello, Rubyists!
<marchelzo> Ariadeno_: hellloooo!!!!!!!!!!!!
* marchelzo dances with adrianvalenz
<sparr> Papierkorb: good idea, re an array of strings to localize
<adrianvalenz> Hey @marchelzo! I'm new to IRC and I'm trying to find more Ruby programmers!
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<marchelzo> adrianvalenz: there are hundreds here! you've come to the right place :D
<sparr> Papierkorb: any feedback on the "TURNORDER = true" stuff at the top? is there a shorter/easier/better way to turn parts of the code on and off than that, without going to a command line arg parser or config file?
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<marchelzo> Ariadeno_: oops sorry for pinging you
<marchelzo> lol
<Papierkorb> sparr: You'd move all of those into a class too, e.g. `Game`. If you don't want to read those from a JSON/YAML file, or somewhere else, it's as good as it gets I fear
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<Papierkorb> sparr: Oh,
<Papierkorb> sparr: You don't change their value, right? It's not a state machine for the game?
<sparr> they are constants
<sparr> this code isn't a game, per se. it just generates a bunch of images, to be printed as a paper card game
<Papierkorb> sparr: Ah! was wondering where the game logic was lingering ;)
<adrianvalenz> marchelzo: Awesome!
<Papierkorb> sparr: w.r.t. "They're constants", don't have the code open anymore, wasn't sure if you didn't reassign them anyway somewhere. Because in ruby, nothing's really constant. It's more of a suggestion .. if you know how ;)
<Papierkorb> (Which is a terrible thing to do of course in most cases, hehe)
<sparr> I'm .freeze'ing a lot of my constant arrays, in the hopes it helps the interpreter optimize
<marchelzo> in a method, how do i call another method from the same class on the object
<marchelzo> self.foo() ?
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<marchelzo> wow i suck at ruby
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<sparr> Is there a way to make my $SHARE_PRICES not-global other than passing it ot the relevant functions or putting everything in a class and making it a property?
<elomatreb> marchelzo: self. is implicit and parentheses are optional, so it's just `foo`
<Papierkorb> sparr: Freezing them is a good idea, I liked that you do it. While it is a tiny tad faster too, you won't notice a difference in general. it's just nicer to actually freeze constants, so to make them more constant :)
<marchelzo> elomatreb: that doesn't work
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<sparr> I do it so the interpreter will yell at me if I accidentally try to change them
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<marchelzo> elomatreb: i don't know what's wrong
<elomatreb> marchelzo: https://eval.in/748369 -- It should
<Papierkorb> sparr: only the two options you're giving there are the alternatives
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<sparr> ok
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<elomatreb> marchelzo: Maybe post the error you're getting, and the corresponding code
<marchelzo> elomatreb: what if, in my method, i have a block where i try to call another method, but that block is passed to some other method that uses instance_eval
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<marchelzo> then it won't be able to find my methods -- is that right?
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<elomatreb> Show your code, I'm not sure I understand your problem
<marchelzo> elomatreb: https://eval.in/748370
<marchelzo> ugh oops
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<elomatreb> I don't think your instance_eval does what you think it does, it evals the block with the self set to the Foo instance since you don't have an explicit receiver
<marchelzo> right
<marchelzo> that's the problem...
<marchelzo> i know what it's doing
<marchelzo> i'm trying to figure out how to work around it
<marchelzo> i need to pass a block that calls b to Foo#bar
<elomatreb> You want that calling `b` in the block calls Foo#b?
<elomatreb> Or Test#b?
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<marchelzo> elomatreb: Test#b
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<elomatreb> marchelzo: You don't even need instance_eval in that case, that's the default behaviour of yielding to blocks. https://eval.in/748374
<marchelzo> elomatreb: ...i know that
<marchelzo> it's not my choice
<elomatreb> Then I'm not sure what your problem is.
<marchelzo> the api that i'm using uses instance_eval on this block
<marchelzo> but i need to have access to the methods on my class
<elomatreb> A little hacky: https://eval.in/748375
<marchelzo> ah ok let's see
<marchelzo> oh no
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<marchelzo> elomatreb: what if i also need to change instance variables ._.
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<elomatreb> Either define attr_accessors or use instance_variable_set if you don't care about hackiness
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<marchelzo> elomatreb: thank you
<elomatreb> This does not seem like a good solution to me though, are you sure you're using the API you're given correctly?
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<marchelzo> elomatreb: i think so
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<marchelzo> well i mean there's no doubt my program is awful
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<sparr> I'm trying to move some functionality into a Module. I have a block calling a function, and that function calls a DSL function defined in an included gem. That call fails when I put it all in a module and module methods.
<sparr> def Rollingstock.deck_shareprice_faceback(face)
<sparr> background color: :white
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<sparr> when deck_shareprice_faceback was a top level function, I could do that. now that I'm calling it as a module method, I get "undefined method `background' for Rollingstock:Module"
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<adrianvalenzuela> hi
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<adrianvalenzuela> what's everyone talking about right now?
<Radar> So much.
<Radar> Where do we even begin?
<adrianvalenzuela> Radar: yea I here ya
<adrianvalenzuela> This is my first day on IRC and I'm still trying to learn and navigate my way around IRC
<Radar> cool :) Why'd you pick this channel as your first point out of interest?
<adrianvalenzuela> I'm a web developer and I have a buddy that recommended IRC a while back for padrinorb web framework. Ruby channel also seemed like a natural place to start meeting other rubyists. althought i'm not the best at ruby by far it is my favorite language :D
<Radar> adrianvalenzuela: Ah great :) Welcome
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<Radar> adrianvalenzuela: It's going to be a bit quiet in here given it's Sunday night in most of the world.
<elomatreb> Commence late-night Ruby IRC rave party
<adrianvalenzuela> Radar: Oh yea? when does it get louder? heh heh
<Radar> adrianvalenzuela: :) typically during the daylight hours of US + EU
<adrianvalenzuela> elomatreb: I'll bring the glow sticks lol
<sparr> when everyone is at work, of course :)
<adrianvalenzuela> I can actually Poi :D
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<adrianvalenzuela> I need some ruby colored poi glow sticks *adds to my wishlist*
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<adrianvalenzuela> Radar: I'm concerned about nicknames, do people usually just keep their default computer use name? or create nicknames, and if so what does one do when someone else uses your nickname?
<adrianvalenzuela> hmmm
<Radar> adrianvalenzuela: I use a different name here than I do on my computer. You can register your nick with nickserv
<Radar> type "/msg nickserv help" for more info on that part
<elomatreb> NickServ allows you to register your nich with a password, kicking anyone who tries to use it anyway
<adrianvalenzuela> ooo nice! do you guys recommend using nicknames or are real names ok? my real name is pretty much my twitter handles and such
<Radar> adrianvalenzuela: Whatever you wish.
<adrianvalenzuela> I typed that /msg nickserv help and nothing happened
<adrianvalenzuela> I'm on irssi in my termnial
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<Radar> adrianvalenzuela: there should be a new window open
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<adrianvalenzuela> let me try again
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<cahoots_> hi, is there anything in ruby equivalent to swift playgrounds?
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<Radar> cahoots_: There's also irb.
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<cahoots_> Radar, i'm not looking for just a repl, i'm looking for something where i can have a large set of text that i can edit, but see the output of each line on the side
<Radar> cahoots_: Ah. I don't know anything like that, sorry.
<cahoots_> normally, my workflow is to have a file with the final script, and a repl alongside it to try ideas out on, but that's slower. i'm surprised it doesn't exist for ruby yet
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<adrianvalenzuela> still a bit confused
<adrianvalenzuela> lol
<adrianvalenzuela> hmm
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<matthewd> Oh, it's mentioned there, but skip to 9:00 for more action
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<lumberjack__> Hey guys, I have saved the output of JSON.parse to a file, Im trying to open that file using File.read and use it like a ruby data structure but its just a string, what am I doing wrong
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<adrianvalenz> Radar: Ok I think LimeChat will help me out some configs
<adrianvalenz> radar: what client do you use for irc?
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<lumberjack__> This is the console output of the file "[{\"ticker\"=>\"A\", \"name\"=>\"Agilent Technologies Inc\"}, {\"ticker\"=>\"AA\", \"name\"=>\"Alcoa Inc\"}]"
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<adrianvalenz> Are there any Rubyists around the Central Coast in California?
<elomatreb> lumberjack__: That's a debug print (output of #inspect). If you want to turn a Ruby Hash into JSON, use JSON.dump. JSON.parse turns the resulting JSON string back into a Ruby structure
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<lumberjack__> elomatreb: Ok yea, I shouldnt be saving JSON.parse to the file I should be just saving the json directly and parsing it when I need to work with it?
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<elomatreb> Yes. The format above is intended for debugging output
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<lumberjack__> elomatreb: Ok Thanks, Ill try it here now and confirm success
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<lumberjack__> elomatreb: Beutiful, thankyou much
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<adrianvalenz_> Radar: I did it! I verified my nickname
<adrianvalenz_> whew!
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<elomatreb> I think you might have verified the wrong one? (Appending a _ is usually done when the nick is already in use)
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<adrianvalenz_> elomatreb: Oh! no I changed it to adrianvalenz_ ;)
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<Radar> adrianvalenz_: well done :)
<elomatreb> You can add multiple nicks to your nickserv registration, you might want to register the one without _ too to avoid possible confusion
<adrianvalenz_> Radar: Thank you sir!
<adrianvalenz_> elomatreb: You are right. I shall do so now!
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<adrianvalenz> hmm
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<sparr> how can I call a method whose name is stored in a string variable?
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<elomatreb> >> "test".send "reverse" # sparr
<ruby[bot]> elomatreb: # => "tset" (https://eval.in/748479)
<elomatreb> Although you should probably use public_send, as to not bypass access control
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<sparr> thanks
<sparr> a file I've just created isn't being included when I rebuild the project gem
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<sparr> it's in the same directory with files that are created. I can't find a manifest listing those files.
<sparr> how can I figure out why it's being skipped?
<elomatreb> It's in your .gemspec file, something like `spec.files = ...`
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<sparr> damn, thanks
<sparr> gemspect is using git to get the list, and I hadn't committed the new file
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<opSUsec> question, I'm planning on moving from systems administration and network security to architectural engineering of robotics systems concurrently following my associates degree. Should I start with python, or ruby?
<sparr> elomatreb: got tips on using send with a hash of named parameters?
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<sparr> got it working!
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* dminuoso pokes jhass
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<dminuoso> I want Truffle bindings for Crystal so I can use these fancy Ruby libraries.
<dminuoso> Clearly.
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<ae01> Hello, my friends.
<ae01> I have some question with ruby code.
<ae01> I wan to have some help from Ruby's programmers.
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<ae01> http://www.rubydoc.info/gems/aws-graph/0.0.5 <== I working with aws-graph.
<ae01> http://pastebin.com/7mXETBaC <== I found from this errors.
<ruby[bot]> ae01: we in #ruby do not like pastebin.com, I reposted your paste to gist for you: https://gist.github.com/dca4db34deb99a03cbdf7a6eb97eddd2
<ruby[bot]> ae01: pastebin.com loads slowly for most, has ads which are distracting and has terrible formatting.
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<ae01> http://pastebin.com/6ghxG3Au <== This code.
<ruby[bot]> ae01: as I told you already, please use https://gist.github.com
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<matthewd> ae01: What's your question?
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<ae01> matthewd, I have some errors with code of ruby.
<dminuoso> ae01: Ask.
<matthewd> ae01: That's not a question.
<ae01> a bot warning to me with using pastebin.
<dminuoso> ae01: Feel free to ignore the warning or not, it's not relevant.
<ae01> Ok.
<matthewd> Yes, we can see the code. It's not a question either.
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<dminuoso> matthewd: Boh boy. I've done too much functional programming. I look at that code and realize how horrible it is.
<ae01> http://pastebin.com/7mXETBaC <== Please see a code execution.
<ruby[bot]> ae01: as I told you already, please use https://gist.github.com
<dminuoso> Just because you know.. it mutates state. :|
<dminuoso> ae01: require 'yaml'
<dminuoso> first
<dminuoso> Before using YAML
<ae01> Diabolik, How to install YAML in ubuntu 14.04
<dminuoso> ae01: it's already installed.
<dminuoso> ae01: It comes with Ruby by default but is not required by default.
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<dminuoso> ae01: That's the difference between core libraries and standard libraries in Ruby. The former are required by default (and they are written in C), while the latter need to be required manually.
<matthewd> dminuoso: Most of it seems pretty close to functional to me
<dminuoso> matthewd: Look at those assignments to instance variables!
<dminuoso> :P
<ae01> How fix this problems?
<dminuoso> 08:27 < dminuoso> ae01: require 'yaml'
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<ae01> dminuoso, Ok. I will modify a ruby's code.
<dminuoso> If you dont know what that means, tells your boss that "Making this Ruby library work with EC2 is not as easy as you thought it would be, and that you need a few books to learn ruby first"
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<matthewd> s/Ruby library/CLI tool that happens to be written in Ruby/
<dminuoso> matthewd: y u no in -ot?
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<dminuoso> How can I bitch about the folks in here with you if you are not there? :S
<matthewd> (and whose full release history spans about a one month period, from three years ago)
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<livcd> Is it only me or is ruby losing momentum ?
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<dminuoso> livcd: It doesn't as that would be a violation of the first law of Newton.
<elomatreb> dminuoso: Was about to write the same thing :<
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<dminuoso> elomatreb: :)
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<dminuoso> livcd: Let's look at this from a scientific point of view: What do you base this "feeling" on?
<dminuoso> Is it just cognitive bias?
<dminuoso> Or do you have comparable studies over several years that shows a loss of popularity for Ruby?
<livcd> dminuoso: cognitive bias
<matthewd> It seems fair to say that Ruby's.. enthusiasm, perhaps, is waning
<dminuoso> livcd: Then let's do some research and find out for sure.
<dminuoso> And by the implied "we" I meant "you".
<livcd> :-)
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<matthewd> There was a period where it was the "new" shiny, and now it's more unremarkable, and other things have taken on that position
<dminuoso> matthewd: Like Haskell.
<dminuoso> We should all do all the problems in Haskell.
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<matthewd> e.g. nodejs, proving that with enough effort, you can, in fact, polish.. anything
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<dminuoso> JavaScript needs to die.
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<dminuoso> Real men write their programs in Lisp.
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<livcd> dminuoso: yeah JS...i am not really happy about JS...
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<dminuoso> livcd: The sad thing is, some parts about it are great.
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<dminuoso> It's just that things such as late binding, the "this" mess, implicit conversions and some syntax flaws (<nothing> vs let vs var) hinder things.
<elomatreb> Async-by-default is nice. npm install left-pad is not
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<dminuoso> Heh.
<livcd> dminuoso: i liked coffeescript but it looks like it is also slowly dying
<dminuoso> livcd: That's because ES6 has basically fixed all those deficiencies that CoffeeScript tied to address in a much cleaner fashion.
<dminuoso> livcd: But the things I mentioned are still a problem for JavaScript.
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<livcd> dminuoso: i still prefer coffeescript to ES6
<dminuoso> livcd: CoffeeScript adds no real value, other than it disguises too much in my book.
<livcd> dminuoso: i agree
<dminuoso> Even things sucha s ES6 class syntax is dangerous, as it allows new programmers to ignore protoypial inheritance
<dminuoso> prototypial
<dminuoso> My spelling has been sucking lately, I think I have a brain tumor.
<matthewd> My frustration with coffeescript was that instead of just adding new syntax shortcuts for common verbose patterns, it semi-arbitrarily redefined things JS people already knew (the comparison operators, for example)
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<elomatreb> It got a little too close to Ruby imo, if that makes any sense
<dminuoso> matthewd: Indeed. The only thing that CS had going for it, was the compact function syntax.
<matthewd> == vs === is tricky and nuanced... but giving them two new different names doesn't help me: now I have to remember how they behave *and* the mapping
<dminuoso> But guess what. (es6) => { return "now has it" }
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<dminuoso> or better yet
<dminuoso> (es6) => "now has it"
<dminuoso> ;o
<dminuoso> matthewd: It's like <nothing> vs let vs var
<dminuoso> exactly the same story.
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<elomatreb> ES6-pet peeve: `() => { ... }`. Why can't I do something like `-> {...}` if I don't have any args?
<dminuoso> You Rubyist!
<dminuoso> Go back to #ruby
<dminuoso> And stay there.
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<ae01> dminuoso, https://gist.github.com/ouychai/7e1adef5c8caeb8b24dedaa018c82eb8 <== I found an errors in a new line.
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<ae01> dminuoso, http://pastebin.com/6ghxG3Au <== A code that an errors
<ruby[bot]> ae01: as I told you already, please use https://gist.github.com
<matthewd> ae01: We really can't offer end-user level support to any code that happens to be written in ruby
<ae01> matthewd, I will talking with my boss.
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<dminuoso> ae01: However, if you are looking for a consultant, I'm sure we could come to an arrangement..
<dminuoso> :-)
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<ae01> dminuoso, I will discuss with my boss. I'm not sure about him.
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<ae01> dminuoso, My boss has cancle this project.
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<ae01> dminuoso, Thank you for your helpfull.
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<zaytsev> hi folks, stupid n00b question: i want to make a gem that reads its version from vcs (~git desribe) i defined function get_version and did spec.version = get_version.freeze but i get an error message undefined local variable or method `get_version' for Gem::Specification:Class
<zaytsev> is there an example somewhere i can have a look at?
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<dminuoso> zaytsev: You defined get_version on the wrong thing, or you invoked it incorrectly.
<zaytsev> oh dang i was close. spec.get_version.freeze seems to work (notice i missed spec initially). nevertheless, is this the way to go?
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<dminuoso> What do you mean by "is this the way to go?"
<zaytsev> dminuoso: i pasted def get_version inside Gem::Specification.new do |spec|
<zaytsev> dminuoso: i don't know is there an established way to get version via functions for gem? in python yes. that's why i'm asking
<dminuoso> zaytsev: Hard to say what that would do, because I don't know what the default definee is when a method is defined like that in the block.
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<dminuoso> zaytsev: One sec, Ill show you how I know it to be.
<zaytsev> dminuoso: thank you!
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<dminuoso> zaytsev: No you nailed it pretty much.
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<matthewd> What would a gem version read from git even look like? :/
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<matthewd> zaytsev: My general advice would be that "how do I do this thing against the normal conventions of the system" is a deeply unwise "n00b" question. If you recognise you're new, it follows that you're going to be better off sticking to conventions until you understand what & why they are, instead of forcing through whatever you're used to from elsewhere.
<LambdaSix> Imprinting the git revision into the file isn't normally a thing that you want to do. Especially for gem versions because a git revision is merely a SHA1 hash
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<LambdaSix> It's always a bit of a hack
<LambdaSix> Better to refine your development/release/packaging process to establish gated changesets that constitute a 'release' that you can assign a semantic version number to.
<elomatreb> The convention is to provide a `VERSION` constant in the top-level module of your gem. There are some tools that can (partially) automate that
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<LambdaSix> "I want to know what exact revision this came from" is answered by creating a commit trail from a release (1.10.2) to the commits that make up the release candidate (HEAD~5..HEAD~20)
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<dminuoso> 11:11 < matthewd> What would a gem version read from git even look like? :/
<dminuoso> matthewd: Whatever you want it to be?
<dminuoso> matthewd: I take it you are not aware of git-describe ?
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<dminuoso> LambdaSix: It's not imprinting the commit hash, but a tag.
<dminuoso> And git-describe just gives you the most recent reachable tag -> in most cases this will be your gems version.
<matthewd> If you just use the previous tag and the counter, that doesn't seem.. compellingly descriptive
<dminuoso> Counter?
<LambdaSix> So just have a rake Package task that executes `git describe > _version` :P
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<matthewd> git describe is <tag>-<counter>-g<sha>, no?
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<dminuoso> matthewd: yeah
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<dminuoso> LambdaSix: Why bother? You'll want the versions in tags anyway, this forces you to maintain this in git.
<dminuoso> Tossing this in a rake task just means you could forget about it
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<zaytsev> matthewd: you might have inferred that being a n00b i cannot judge whether this is against conventions or not, which is exactly why i'm asking the question in the first place.
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<dminuoso> Uh..
<dminuoso> Why does this work
<zaytsev> lambdasix: ok i understand that according to what you said the established practice is to commit the version to the repository. we could do this, ttrue, but this doesn't feel awesome. it means i'd have to make some sort of a release script that does version bumps upon releases, and resets them after back merge and what not. in other worlds people discover artifact version from vcs tags and only hardcode versions in release tarballs.
<canton7> dminuoso, you call bar, passing a block which prints "nested". bar calls foo, passing a block which calls the block which was passed to bar. Foo calls the block that was passed to it, which calls the block passed to bar
<dminuoso> canton7: What I mean is..
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<dminuoso> canton7: I would have expected this to error out with a SystemStackError
<canton7> why?
<zaytsev> matthewd: re. git describe, not necessarily. this is what it looks like for non-tagged commits, but if you tag releases you can get exact version number from git describve like v0.2.3
<dminuoso> asm>> def foo; yield end; def bar; foo { yield } end; bar { puts "nested" }
<ruby[bot]> dminuoso: I have disassembled your code, the result is at https://eval.in/748847
<dminuoso> asm>> { yield }
<ruby[bot]> dminuoso: I have disassembled your code, the result is at https://eval.in/748848
<dminuoso> asm>> f() { yield }
<ruby[bot]> dminuoso: I have disassembled your code, the result is at https://eval.in/748849
<dminuoso> canton7: I think I just answered my question.
<canton7> ok, great. Still not sure where the confusion came from, but it doesn't matter
<dminuoso> canton7: I completely forgot that yield is not a Kernel#yield method but a built-in
<dminuoso> And that blocks do not differ from methods much
<dminuoso> Yeah
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<catphish> can one use poll() in ruby?
<catphish> i've been using epoll using a gem, but need OSX compatibility, poll seems the obvious option
<dminuoso> One does not simply epoll under OSX.
<dminuoso> You should be asking for kqueue.
<catphish> i was hoping to just use something with support for both platforms, doesn't even need to be high performance in this case
<catphish> might use select, but figured poll would be better
<dminuoso> catphish: What exactly do you want to poll/select?
<catphish> several (less than 100) TCP sockets (both listeners and open sockets)
<catphish> unless there's something that will abstract epoll and kqueue for me, that would work
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<zaytsev> dminuoso: so `gem build myspec` works, but bundler install says private method `get_version' called for #<Gem::Specification:0x3f9313266598 ... do you happen to know why does it try to run it, and how do i make it public?
<dminuoso> catphish: You could reuse a higher level library such as eventmachine - is that an option for you?
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<catphish> it's certainly possible, i've written everything with epoll, but its not a huge app, could certainly throw it away and use EM instead
<catphish> EM is likely better than my DIY method
<catphish> i've never actually used it, but maybe now's time to try
<catphish> it's basically just a TCP proxy of sorts
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<catphish> thanks dminuoso
<matthewd> catphish: I'd recommend nio4r
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<matthewd> EM is.. invasive
<catphish> matthewd: thanks, that looks cool, EM is certainly overkill, but i'm gonna try it for now, it might make things super easy
<catphish> perhaps i'll read the nio4r docs first
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<matthewd> There's also e.g. https://github.com/socketry/socketry-async, but I've only worked with nio4r directly
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<matthewd> IMO the only thing you need to know about EM is that https://github.com/royaltm/ruby-em-pg-client exists
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<matthewd> (which I may be misunderstanding, because it always caused me too many issues to get that far.. but at a glance, it seems to imply the "switch" to EM's scheduler means you really don't want to use 'normal' IO-performing libraries, and need special EM variants for everything)
<catphish> just run into the first hurdle with EM, its start_tls method doesn't accept a CA file
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<catphish> that seems like quite an oversight
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<matthewd> General hazard of a parallel-API-reimplementation strategy
<catphish> indeed
* catphish tries nio4r
<catphish> matthewd: do you know if you can register an instance of something that manages a socket, rather than just the socket itself?
<catphish> like, it's all very well knowing when there's data waiting on a TCP connection, but i have an instance that owns that tcp connection that needs a method calling on it to get the data
<matthewd> Yes
<catphish> matthewd: lovely!
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<zaytsev> dminuoso: ah, i put get_version in a separate class VersionProvider and it also works with bundler :-)
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<maattdd> matthewd: I'm using EM with normal sync PG gem, it is working if you can afford blocking the EM reactor for the time of the PG request
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<matthewd> maattdd: Yeah, that's a pretty big "if"
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<maattdd> Indeed, but still better than everything sync (In my case, I only do async external http requests)
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<cout> I need to repeatedly replace "/__/" with "/../" in a filename. my first attempt was naive: filename.gsub(%r{/__/}, '') but this fails for "foo/__/__/bar" -- any suggestions?
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<canton7> cout, .gsub(%r{(?<=/)__(?=/)}, '..')
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<cout> interesting
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<canton7> :) lookarounds can be awesome
<cout> yeah I had to look it up
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<cout> danke
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<catphish> matthewd: sorry to ask directly, but do you know offhand how to change the r/w status of a socket registered with nio?
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<matthewd> catphish: See that actioncable file I linked to earlier
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<matthewd> It's pretty small, and is the only file that touches nio, so should be pretty self-contained
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<catphish> monitor.interests = :rw
<catphish> yep, cool :)
<catphish> thanks again
<matthewd> Yeah, that's the one :)
<matthewd> No worries!
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<matthewd> catphish: You may also be interested in https://github.com/socketry/nio4r/pull/124
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<catphish> i'll try as-is and see if i run into anything nasty :)
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<zaytsev> so is there a good way to fail ruby script if command fails while still capturing its output in a variable. i.e. foo = `bang`.chomp will ignore return code of bang. i understand there is a special varialbe $? but i'm not sure how to marry it with output capturing
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<dminuoso> 12:42 < matthewd> EM is.. invasive
<dminuoso> dont be hating
<dminuoso> it uses reactor pattern!
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<matthewd> So did Chernobyl
<catphish> zaytsev: consider using open2
<zaytsev> catphish: :( i need to do it in gemspec, so would try to avoid anything external
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<matthewd> zaytsev: I really recommend against inventing your own release process
<dminuoso> matthewd: Clearly EM wins.
<catphish> zaytsev: looks like IO.popen gives you all you need
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<matthewd> zaytsev: But $? gets set after `..`, so you can check whether it is $?.success?
<dminuoso> catphish: nio4r is definitely an alternative by the way
<dminuoso> doesnt rails use nio4r?
<dminuoso> i.e. actioncable
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<matthewd> dminuoso: Yep.
<catphish> zaytsev: yeah, i just realised what matthewd is right, backticks set $?
<catphish> so you only need to use `command`; $?
<catphish> dminuoso: i am now using nio4r, works perfectly :)
<dminuoso> catphish: Fun fact, did you know that these special vars are not actual ruby variables?
<dminuoso> (And thus are not actually set)
<catphish> dminuoso: i never understood "special" variables really
<zaytsev> matthewd: i understood your recommendation, but this is not a normal ruby gem i'm working on. it's just a jekyll theme which happens to be packaged as a gem, and i'd hate to have yet another different process for my team to handle just because in the gem community it seems normal to hardcode version numbers in repository. literally, everybody else get them from vcs tags in one form or another.
<catphish> like $1 which looks like a global variable but is thread safe
<zaytsev> catphish: so foo = `bar`.chomp ; fail unless $? == 0 ?
<catphish> zaytsev: yes
<catphish> actuall no
<catphish> $? isn't an integer
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<catphish> its a Process::Status
<catphish> $?.success?
<catphish> or $?.exitstatus == 0
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<catphish> not sure what success? does
<matthewd> Looks like `$? == 0` does actually work, because ruby
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<matthewd> (but it's not comparing to the exit status, but the raw result; exitstatus 1 is == 256, not == 1)
<catphish> oh ok :)
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<catphish> wow ruby.
<dminuoso> catphish: They are called DVARs (i.e. dynamic variable) internally. These variables are basically functional variables whose value is calculated dynamically at runtime.
<catphish> dminuoso: makes sense :)
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<dminuoso> Or.. Im not so sure about that name right now.
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<dminuoso> Ox0dea used to have a really neat hack to expose them into Rubyland.
<dminuoso> But my logs from those times are gone. :/
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<zaytsev> catphish: ah excellent this works now =) if one forgets to push a tag the build fails as it should
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<zaytsev> thank you all
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<catphish> you're welcome :)
<nofxxx> $? == $CHILD_STATUS , if you like more readable... unfortunely more php... the dark ages
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* nofxxx likes $ before numbers... not vars
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<bmurt> anyone running into a segfault with json gem and ruby 2.4.0 or 2.3.3? https://github.com/flori/json/issues/318 but i’m not entirely sure the issue is in the json gem or something else i used rvm to change to ruby 2.3.3 and getting the same result with the json 1.8.6 gem vs 2.0.3
<matthewd> >> %w($? $~ $1).map {|v| RubyVM::InstructionSequence.compile(v).disassemble.lines[2].chomp } * "; "
<ruby[bot]> matthewd: # => "0002 getglobal $?; 0002 getglobal $~; 0002 getspecial 1, 2" (https://eval.in/748962)
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<dminuoso> bmurt: Please post the complete output of your crash output in a gist.
<bmurt> it's in the github issue
<dminuoso> Oh that is you?
<bmurt> yes
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<dminuoso> bmurt: Found your issue
<dminuoso> You can close it too.
<bmurt> user error? :D
<dminuoso> bmurt: Yes and no.
<dminuoso> c:0012 p:0115 s:0052 e:000051 METHOD /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55
<dminuoso> c:0011 p:0009 s:0042 e:000041 CLASS /Users/brendan/.rvm/gems/ruby-2.4.0@ruby-jenkins-metrics/gems/json-2.0.3/lib/json/ext.rb:7
<dminuoso> Look at that
<dminuoso> And tell me if you can spot it
<matthewd> (that is of course still a lie: $~, for example, isn't even merely thread-local, but *scope* local)
<dminuoso> bmurt: Dont worry Ill wait until you can see the error.
<bmurt> paths?
<dminuoso> bmurt: Look closer.
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<bmurt> i'm not sure. i see different paths and also method vs class but not sure of the issue
<dminuoso> bmurt: What do those paths means?
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<dminuoso> bmurt: This is an educational game. I want you to find the issue.
<bmurt> the first is looking at the system ruby vs the rvm
<bmurt> in the later path
<dminuoso> bmurt: Great. So this is definitely an issue. Now look at the versions.
<dminuoso> Do they differ?
<bmurt> yeah, i see that
<dminuoso> That's the issue.
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<bmurt> gotcha. i'm not sure how i got into that predicament. i use .ruby-version and .ruby-gemset files and RVM
<bmurt> not sure how it went to the system unless it's because of the json system version
* dminuoso sits back making but avoids making any fun remarks about how RVM regularly causes issues
<dminuoso> bmurt: try gem pristine on it
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<dminuoso> bmurt: The issue is that the gem was wrongly built against ruby 2.0.0
<nofxxx> rvm/rubyenv whatever... creating more trouble than the ruby 1.x -> 2.x move. Almost removing java from the original tool to solve a problem that creates two
<dminuoso> ^-
<dminuoso> Though rbenv creates far less issues.
<dminuoso> But not a day goes by with at least 2-3 people coming in here, having serious issues with rvm.
<matthewd> RVM has many more features than rbenv or chruby
<nofxxx> ruby is not a ill-stupid-designed language (like python) so the move was easy
<bmurt> [brendan@wayward ruby-jenkins-metrics]$ gem pristine json
<bmurt> Restoring gems to pristine condition...
<bmurt> Skipped json-2.0.2, it is a default gem
<bmurt> Building native extensions. This could take a while...
<bmurt> Restored json-2.0.3
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<bmurt> after that i executed my script again and same result
<matthewd> Unfortunately, "conveniently switch between ruby versions" often doesn't seem to be one of them
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<matthewd> bmurt: `gem env`
<bmurt> that's showing the pristine command, gem list, etc
<bmurt> also added gem env output per matthewd's request
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<matthewd> Oh.. what's the #! in that file look like?
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<bmurt> #!/usr/bin/ruby
<matthewd> I don't think rvm interferes heavily enough to override that
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<matthewd> `/usr/bin/env ruby` might do better?
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<dminuoso> rvm interferes
<dminuoso> that was the correct terminology
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<bmurt> so is it best to use: /usr/bin/env ruby
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<matthewd> Probably. That way it'll search the current path when it's run.
<bmurt> gotcha
<bmurt> i do see the error of my ways by doing /usr/bin/ruby -v versus /usr/bin/env ruby -v
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<bmurt> should the shebang be /usr/bin/env ruby?
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<ytti_> if you do gems, it'll create appropriate shebang for you
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<matthewd> bmurt: Yes, for a (non-gem) script, the shebang will be best going via env
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<mekeor> what do you think about my first ruby class (for pretty console logs)? http://codepad.org/Wpm7bRzY (example usage at bottom.) it's for pretty terminal output as lists :) it's still tiny but kinda sweet
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<dminuoso> ?indent
<ruby[bot]> dminuoso: I don't know anything about indent
<dminuoso> ?tab
<dminuoso> ?tabs
<dminuoso> ?spaces
<ruby[bot]> dminuoso: I don't know anything about tab
<ruby[bot]> Ruby community standards recommend using 2 spaces as indentation (see https://github.com/bbatsov/ruby-style-guide#spaces-indentation and https://ukupat.github.io/tabs-or-spaces/).
<dminuoso> mekeor: ^- that
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<dminuoso> mekeor: Also I would use explicit method call parens in most of these cases.
<mekeor> dminuoso: i did use 2 spaces for indentation...
<dminuoso> Oh
<dminuoso> mekeor: Nevermind, it was just vertically aligned arguments. Nevermind. :)_
<dminuoso> mekeor: Looks neat as a starter.
<dminuoso> mekeor: Only one real criticsm point: Avoid class variables unless you mean to use them.
<dminuoso> Use class-instance variables instead.
<mekeor> uhm, no idea what that means :D
* mekeor googles
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<mekeor> ah, that @@ vs @ thing, i see
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<mekeor> well, you know, i was only using the class directly, as Log.blah, so i thought that's what i want
<mekeor> but maybe it'd be better to have to create an instance of that class, indeed
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<sxm> hi！
<mekeor> hi sxm :)
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<sxm> 有说中文的的吗？
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<sxm> 大家都是ruby deployer?
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<sxm> 好安静
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<centrx> sxm: ruby deployer: capistrano
<sxm> I'm JAVA deployer
<sxm> no ruby!
<mekeor> sxm: you could try #ruby-tw
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<sxm> It's nice!
<mekeor> (for taiwan. they speak almost the same language, i guess? no?)
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<sxm> NO,I'm HangZhou.
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<sxm> I usually speak Chinese。
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<sxm> Are you all from the American developer?
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<mekeor> i'm from europe. but i think there are many ruby-developers from all over the world. especially, since ruby was designed by Yukihiro Matsumoto, a japanese
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<sxm> Europe is a beautiful place, hope to see Europe in the future.
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<sxm> At present the more fire technology is micro service.
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<sxm> One-stop SAAS platform.
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<sxm> We just got off work！
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<centrx> Work never stops here in America
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<sxm> We work here more serious overtime!
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<centrx> I worked 244 hours last week. How many you work?
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<sxm> 60 hours.
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<sxm> A total of 168 hours a week，how could you work 244 hours？
<sxm> @centrx
<centrx> Serious overtime. Time travel overtime
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<sxm> You are too humorous！
<eam> moonlighting
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<codeshah> Hey guys, I want to take my first [rootdomain]/:cityname .. the :cityname and then do something on the page... [:cityname] is not in the database, it can be anything. How do I do this?
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<centrx> codeshah: Are you using a web framework?
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<sxm> Powerless！
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<agent_white> Mornin' folks
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<reznik> Oh finally I got
<reznik> Hello
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<reznik> I.m really a beginner in ruby and I was wondering if somebody could help me out a little
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<reznik> How can I add a pair of key/value to a hash?
<dminuoso> reznik: Get a ruby book
<dminuoso> ?books
<ruby[bot]> You can find a list of recommended books at http://ruby-community.com/pages/links
<reznik> right
<reznik> I use codeacademy
<reznik> is just that
<reznik> The instruction that they give me
<reznik> Makes 0 sense to me
<reznik> numbers = {}
<reznik> numbers["one"] = 1
<reznik> # prints out "4"
<reznik> puts 3 + numbers["one"]
<reznik> Thats supposed to add a key/value?
<reznik> Ah right
<reznik> thanks
<reznik> i.ll try it out
<reznik> :)
<baweaver> Do you know how a hash works?
<baweaver> don't
<baweaver> ?gist
<ruby[bot]> https://gist.github.com - Multiple files, syntax highlighting, even automatically with matching filenames, can be edited
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<baweaver> use gist for pasting code next time
<baweaver> IRC will autoban you for that
<baweaver> thinks you're spamming
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<baweaver> Also see the channel topic for a list of Ruby books
<reznik> What to do you mean by how a hash work?
<reznik> Its more or less an array
<reznik> like
<reznik> with an each iteration it goes through keys and valuse
<reznik> Sorry I don't understand what you mean
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<baweaver> In your code you've already done it
<baweaver> so it's an odd question
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<baweaver> I'd be hesitant to say Hashes and Arrays are similar though much past their accessors
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<baweaver> (which, in that case, would also pull in Procs)
<dminuoso> Hashes and Arrays are the same. Look:
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* baweaver does not see
<dminuoso> >> [{}, {}] == {[]:[]} || true
* baweaver twiddles thumbs in anticipation
<ruby[bot]> dminuoso: # => /tmp/execpad-4209d95a12f9/source-4209d95a12f9:2: syntax error, unexpected ':', expecting => ...check link for more (https://eval.in/749118)
<dminuoso> >> [{}, {}] == {[]=>[]} || true
<ruby[bot]> dminuoso: # => true (https://eval.in/749119)
<dminuoso> clearly.
<dminuoso> I'd like you to prove me wrong now!
<herwin> actually, in perl arrays and hashes are more or less equal
* dminuoso pokes baweaver with a troll pole
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<reznik> That wasn't my code
* baweaver stares blankly
<reznik> It was the instruction I got from codeacademy
<baweaver> I've not had nearly enough coffee to understand how that worked.
<baweaver> explain
<reznik> It just that made no sense for me thats all
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<baweaver> ah
<baweaver> || true
<baweaver> cheater
<dminuoso> baweaver: Clearly. Id like you stare the code long until, until you hunt me down with the banhammer
<dminuoso> Haha.
<dminuoso> I got you though.
<baweaver> >> hash = {}; hash['key'] = 'value'; hash
<ruby[bot]> baweaver: # => {"key"=>"value"} (https://eval.in/749121)
<dminuoso> baweaver: I can also provide you an example involving the use of Fiddle..
<baweaver> bot?
<baweaver> >> 1
<ruby[bot]> baweaver: # => 1 (https://eval.in/749122)
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<baweaver> Silly bot is silly
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<spmd> Hello
<havenwood> spmd: hi
<spmd> havenwood: sup
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<jorj_> what good good gems exist for making irc clients?
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<cout> jorj: I like cinch
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<cout> I'd prefer if it were more unit-testing friendly, but I haven't found one that's any better
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<jorj_> MrBusiness? wudda name
<jorj_> oh wait, cinch.
<jorj_> my dyslexia conflated two unrelated lines
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<jorj_> what do you mean by unit-testing friendly?
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<dminuoso> Too much?
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<dminuoso> Actually functional programming in Ruby seems fun.
<jorj_> you could just declare that output hash in less lines . . .
<dminuoso> jorj_: That's besides the point. The idea is to have a functional hierarchy that ensures I always get back a Hash matching a specific pattern.
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<dminuoso> Mmm, if I wanted coroutines in Ruby, that'd be Fiber basically right?
<brendan-> anyone using thor know if it's possible to do sub-options
<brendan-> or dependencies on options
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<brendan-> meaning if i specify an option, i need this additional options as required
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<patarr> Does Ruby have a limited heap space, or can it take advantage of all the RAM on the host machine?
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<dminuoso> patarr: There is a limitation in the internal ruby heap.
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<dminuoso> patarr: But I think you can't hit that, so it's effectively unbound by Ruby itself.
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<sparr> I need to File.write() many lines with a little bit of interpolation in the middle. What's the cleanest way to format that?
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<sparr> a single multi-line string looks weird since it has no indentation and the code around it is indented
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<adaedra> heredocs!
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<adaedra> Especially the <<~ form
<havenwood> +1 squiggle
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<adaedra> 'evening havenwood
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<havenwood> adaedra: g'eve'
<dminuoso> Ruby hackers. Is there any elegant hackery to import desirable features of a given module into a section of code without polluting global namespace?
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<baweaver> file.puts('it takes', 'comma separated', 'arguments as well')
<adaedra> refinements?
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<dminuoso> adaedra: Mmmm
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<adaedra> or, if it's just basic methods from a module, be in another module and import it there
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<dminuoso> adaedra: If only we had anonymous namespace. :S
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<dminuoso> adaedra: I've done so much JavaScript, that I even started currying ruby methods for partial function application today.. now Im asking for CommonJS.
<dminuoso> What's the treatment, doctor?
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<havenwood> dminuoso: Just an aside, but Kernel#load takes an (I've never seen used) second arg which if set executes the loaded code "under an anonymous module, protecting the calling program’s global namespace."
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<dminuoso> havenwood: Yeah I remember that, but it's unused because it kind of makes it useless, unless some export/import functionality was provided.
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<c-c> dminuoso: 'desirable features of a given module' is ambiguous
<dminuoso> c-c: Well let's say a import { foo } from './bar'; equivalent
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<c-c> dminuoso: also "into a section of code" is vague
<c-c> seems to me like bunch of architecture astronautism
* dminuoso pokes c-c with a stick
<c-c> Do you have an actual real life case?
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* c-c pokes dminuoso's 56728 to 23
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<dminuoso> wait.. what?
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<dminuoso> c-c: Essentially I hate require. It basically glues two pieces of code together.
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<c-c> dminuoso: do you know include and extend well?
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<dminuoso> c-c: Yeah.
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<c-c> dminuoso: so, you want metparogrammings?
<dminuoso> Say what?
<c-c> *metaprogrammings
<dminuoso> Oh.
<baweaver> hehehehe
<dminuoso> c-c: Most languages around have some concept of modularization.
<dminuoso> Ruby does not.
<baweaver> I had a super dirty idea
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<c-c> dminuoso: you seem confused
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<c-c> dminuoso: perhaps you could grab a cup of tea or water and ask me about metaprogramming
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<dminuoso> c-c: Cant we talk about monads instead and why we need them in Ruby?
<dminuoso> &. is a clear sympton that could have been avoided with monads :S
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<c-c> In nethack & is a demon
<dminuoso> c-c: Same thing in ADOM.
<dminuoso> Except they're much more badass in adom.
<baweaver> def import(modules: [], from: ) modules.map { |m| self.instance_eval { define_method from.method(m) } } end
<baweaver> psuedocode
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<baweaver> import modules: [:my, :methods, :here], from: Kernel
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<baweaver> :D
<dminuoso> Uh...
<dminuoso> Well. :S
<dminuoso> I guess..
<dminuoso> ?cookie
<ruby[bot]> here's your cookie: 🍪
<dminuoso> for the effort
<baweaver> I mean theoretically you can use that pattern to make an importer.
<dminuoso> baweaver: You still have to require the external file first.
<dminuoso> Though..
<dminuoso> baweaver: I realized, you're onto something.
<baweaver> there are probably ways to hack it.
<dminuoso> You could use ISeq to compile a file first
<dminuoso> and then extract the portions you care about
<dminuoso> Im loving this already.
<baweaver> also remember that Monads are kinda worthless without a Hindley Milner based type system
<c-c> also, because nobody is willing to pay for monads
* baweaver rolls eyes
<dminuoso> Also because we don't want to be dealing with explaining what monads are to the same people day after day.
<dminuoso> #haskell has that problem already
<dminuoso> lol
<dminuoso> 22:49 < baweaver> also remember that Monads are kinda worthless without a Hindley Milner based type system
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<dminuoso> If only I knew what that was.
<baweaver> spacesuit burrito onions that are simply monoids in the category of endofunctors
<baweaver> Name:: String -> String
<dminuoso> Yeah I looked at that article
<dminuoso> I felt just as confused like the first time I read a "monads explained for idiots" tutorial
<dminuoso> Something tells me this would be much more easy if I had some lambda calculus background
<baweaver> Anyways, probably good for #ruby-offtopic
<dminuoso> Cant we just rename the channels? Switching them in irssi is effort.
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<sparr> adaedra havenwood: trickier question... is there a way to use squiggly heredoc but specify an indent other than then the least indented line?
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<sparr> I'm breaking one squiggly heredoc up into two, and I want to maintain output indentation between them, but one of them doesn't have the least indented line
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<eam> >> "test"
<dminuoso> ?kick eam
<ruby[bot]> dminuoso: I don't know anything about kick
<dminuoso> :(
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<dminuoso> eam: You're lucky that apeiros rejected my pull request! ;o
<eam> wut
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<eam> why would you be so mean
<eam> I'm just making sure it works (or doesn't) before I offer an interesting question to this otherwise dead channel!
<eam> >> "how about now"
<havenwood> eam: #!> ArgumentError: wrong number of arguments (given 0, expected 2..3)
<ruby[bot]> eam: # => "how about now" (https://eval.in/749230)
<dminuoso> 23:27 < eam> why would you be so mean
<dminuoso> My psychologist keeps asking me the same question. :S
<eam> ok so check this out
<eam> >> stuff = "zzzz.bar.foo"; [1,2].map { stuff.gsub(/^\S+\.(\S+)\.foo/, "#{$1}") }.inspect
<ruby[bot]> eam: # => "[\"\", \"bar\"]" (https://eval.in/749231)
<eam> why the different results?
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<Papierkorb> eam: You're accessing $1 from the previous run
<eam> oh snap
<Papierkorb> eam: Use '\1' instead (Note the single quotes)
<eam> that's totally it
<dminuoso> Or "\\\\\1" (was that too many?)
<havenwood> >> stuff = "zzzz.bar.foo"; [1,2].map { stuff.gsub(/^\S+\.(\S+)\.foo/, '\1') }.inspect
<ruby[bot]> havenwood: # => "[\"bar\", \"bar\"]" (https://eval.in/749232)
<dminuoso> or was it "\\\1" ?
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<dminuoso> I cant remember this double quote syntax, I just know its tons (tm) of backspaces.
<Papierkorb> dminuoso: It was kinda insane, so the first one
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<dminuoso> Papierkorb: turns out its just 2.
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<dminuoso> but as a wise man said: there's only none, one and many.
<Papierkorb> heh then I needed some more at some point for some other reason
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<dminuoso> Papierkorb: Yeah me too, definitely.
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<jscheel> I’m having trouble with ssl. When I add a ca cert to an openssl store on my dev machine, everything works file. When I do the exact same thing in production, I get “certificate verify failed”
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<jscheel> doing it like so: `store = OpenSSL::X509::Store.new; store.add_cert(OpenSSL::X509::Certificate.new(File.read(‘/path/to/ca.pem’)))`
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<jscheel> to see what’s going on
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<jscheel> I have no idea what could possibly be causing this to not work in certain environments
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<jscheel> let me amend my previous issue
<jscheel> and I get `SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (OpenSSL::SSL::SSLError)` when I try to connect
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<zenspider> jscheel: I'm no expert by any means... but have you tried using `openssl s_client -connect` on a good env vs a bad one?
<zenspider> iow, remove ruby frome the equation first
<zenspider> *from
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<jscheel> zenspider: hmm, no, I haven’t, but I’m starting to see something that doesn’t add up. I thought dev was working, but it might have been masking the error
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<jscheel> my reduced case (gist above) fails in dev too
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<jscheel> could it be because the root cert isn’t from a trusted authority?
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<jscheel> zenspider: using openssl s_client shows `CONNECTED(00000003)` then `11830:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol`
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<c-c> jscheel: so is it the correct port?
<c-c> the 443?
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<jscheel> c-c: yes, I’m passing the correct port in (though it is a custom one)
<zenspider> make sure you test on the good env first to get the command right
<jscheel> zenspider: I am, see message above (I don’t thing good env was actually good)
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<jscheel> thought it was :\
<jscheel> blerg
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<zenspider> blah... that sucks
<jscheel> yep
<zenspider> well... maybe verify against something you DO know is good (like, google), just to practice... then you can use that to turn around and more easily diagnose your envs
<jscheel> oh, interesting
<jscheel> ran in my docker container, which has a newer version of openssl
<jscheel> and openssl s_client worked better
<jscheel> so, it looks like the problem is that it is a self-signed cert
<jscheel> `verify error:num=19:self signed certificate in certificate chain`
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<jscheel> I am definitely not an expert on ssl
<jscheel> so, even though I am providing a root cert, because it was not issued by a trusted authority, it is being rejected. Does that sound right?
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<exagerado> yeah, that's it
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<nofxxx> jscheel, use Let's Encrypt ... it's the best thing I've seen in years
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<jscheel> nofxxx: this is a cert used to access a third-party service
<jscheel> issued by them
<nofxxx> jscheel, ops, parachute dropped in the subject sorry hehe.... but if someone didn't knew it
<jscheel> nofxxx: yeah, I’m using let’s encrypt on my personal stuff
<jscheel> super awesome
<nofxxx> jscheel, yeah, totally hats off. Not only great and free, but daemonized never again remember refreshing certs
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<sparr> I'm trying to use YAML.dump to put a hash into a yaml file, but it's putting symbols for yaml keys whether I have symbols or strings as keys in my hash. How can I avoid that?
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<marchelzo> hello ruby community members
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