<zenspider>
you just threw ordering out the window
<zenspider>
these requirements sure look like BS to me
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<b3itz>
hey guys, so i need to loop through a txt file "inFile" line by line and parse the data into an array. the data in the inFile is structured like, 33, 55, 22 etc. how in the world do i take that inFile and parse it into an array/?
<jenrzzz>
MattB: you're gonna need to access a.values no matter what you do, so there's not much to be gained by avoiding the intermediate arrays
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<b3itz>
obiously i need to loop throigh the file line by line... inFile.each_line do |line|?
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<zenspider>
b3itz: obviously?
<jenrzzz>
MattB: but you could do some shenanigans like hash.each.with_index.with_object({}) do |(k, v), i, h|... if you want to keep it all in a block and avoid calling Hash[]
<pontiki>
b3itz: it's a comma-separated line?
<gr33n7007h>
b3itz, ARGF.each do |line| ....
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<b3itz>
pontiki: no, just using the return button
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<jenrzzz>
b3itz: that sounds like a CSV file. have you checked out the CSV module?
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<pontiki>
ok, never mind
<b3itz>
jenrzzz: this is an assignment using a txt file my prof provided
<pontiki>
homework?
<pontiki>
hah
<jenrzzz>
ah. what part are you stuck on?
<MattB>
jenrzzz: Okay thanks.
<b3itz>
yes homework. Well, i have the file opened File.open('input.txt', 'r')
<b3itz>
then im not sure how to loop through and create an array out of each line
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<b3itz>
11 55 29 68 22 => i need to then read that line in, and create an array, data, [11, 55, 29, 68, 22]\
<eam>
b3itz: what methods are available on your file object?
<eam>
the_file = File.open('input.txt', 'r') # now, what methods are available to call on the_file?
<lampd1>
jenrzzz: but he doesn't need to parse an html file
<lampd1>
lol ;)
<eam>
b3itz: read through jenrzzz's link, try using some of those methods documented there
<jenrzzz>
this is srs business for srs programmers
<jenrzzz>
no jokes allowed
<jenrzzz>
you could put an eye out
<lampd1>
all jokes aside, i need to dig into some file parsing right now too :(
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<b3itz>
ok lemme take a look real quick, am i on the right track thinking i need to use a for loop to iterate through and seperate items in the array by the space?
<lampd1>
hooray for APIless software \o/
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<MattB>
jenrzzz: That's an abomination: hash.each.with_index.with_object({}) do |(k, v), i, h| ! :-) Think I'll stick with Hash[]
<jenrzzz>
MattB: yep :)
<jenrzzz>
b3itz: you should almost never use a for loop in ruby
<b3itz>
jenrzzz: you can see i've mostly studied java lol
<b3itz>
what should i use??
<Authenticator>
b3itz: Implement it via the CSV lib for testing and code your impementation to have the same interface (if possible) and return the same values. Reverse engineer it to the level desired for class.
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<MattB>
b3itz #each is your friend when it comes to iteration, but Ruby has other methods to split a string into an array by separator.
<atmosx>
MattB: did you pull that off now? impressive too :-)
<atmosx>
zil2: can show the entire script?
<MattB>
it should be {0=>100.0, 1=>83.3333, 2=>50.0}
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<MattB>
ie. Sum of all three values as percentage of total, sum of second and third (as percentage), third only (as %).
<MattB>
That's why I was using the index in the first place, to track where I was up to in the array...
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<zil2>
atmosx - it is really really long and awkward/has many related files, can show you via teamviewer on the machine
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<atmosx>
zil2: can you upload the method or the *lines* where the code which you can't get to work is? I mean like 3 lines up/down or the entire method (if it's part of a method).
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<atmosx>
zil2: if you can upload it to github, I'm not opening a TM session now with a stranger :-P
<zil2>
heh, even as you as the controller!? No worries, I'll try to upload...
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<jenrzzz>
MattB: can you specify the problem clearly in a gist with expected input and output?
<MattB>
Yes, good idea - we were getting there by iteration, but with a step missed it's gonna be hard to back track.
<atmosx>
zil2: actually you need to show (in the SO post too) the convet_err() method mus tbe defined somewhere
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<jenrzzz>
zil2: does convert_err return a string?
<atmosx>
zil2: first things first: That code is wrong. You can't use #{} outside of a double-quote string "#{var}" or var
<atmosx>
zil2: so in your case should be: convert_err(results["status"]) =~ /Uknown/ in line 4
<zil2>
I have never used ruby before now, I am a c# dev, I have never seen #{} and after googling for ages, I can't even find a refrence that shows what it is... I'll try to dig out convert_err now
<atmosx>
now if you can show the convert_err method would be fine
<atmosx>
remove the #{} you don't need it. Adding the double quotes will work too, but will add up confusion.
<jenrzzz>
zil2: #{} is used for string interpolation. e.g. "foo-#{1 + 2}" => 'foo-3'
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<crocket>
How do I get the number of processors without installing any ruby module?
<crocket>
I just need to get the number of hardware threads.
<jenrzzz>
i don't think you can do this with pure ruby
<jenrzzz>
the sys-cpu gem will though
<atmosx>
crocket: in BSd either, but I suggest you go with the 'system' gem then or you write your own method.
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<crocket>
Woo
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<zil2>
atmosx trying to run now iwth modifications you said
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<atmosx>
zil2: do you know what the results["status"] variable should return? What kind of class? String or Symbol? Because I'm getting the idea you're expecting a symbol there.
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<jenrzzz>
atmosx: i think it might be anything. #convert_error(err) returns "Unknown Error" unless [:required, :no_response].include?(err)
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<zil2>
atmosx: sorry, I don't have a clue :( http://pastebin.com/CwBHiTnj is the script, I can't say more than that other than poste other bits
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<atmosx>
zil2: did you run the modification I gave to see if the error is reproduced?
<atmosx>
in line 4?
<zil2>
atmosx - I am trying to run it now, just takes ages to actually get to a response of unknown!
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<zil2>
it is like 1 in 50000 runs (can do about 2-3 a second) but it just output then failed... so, idea is to rerun when it comes up
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<atmosx>
oh I see
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<zil2>
yep, that is what I have - so far so good... I mean, when I tried, it kept doing the retry no matter what/on anything... it is processing now!
<louism2wash>
Hey guys, is there any standard for what goes into your a lib directory in a Ruby project? That's where I am putting my class files. Thanks.
<zil2>
woot! atmosx: It worked! :) Retried the failed one! Thank you so much!
<atmosx>
zil2: so you're okay? Also that code segment you showed, uses if/else ... I think might be better style to use exceptions http://ruby.bastardsbook.com/chapters/exception-handling/ but if it works and it's complicated better not touch it :-)
<atmosx>
zil2: no worries, that was easy :-)
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<atmosx>
zil2: glad to help
<graft>
okay, so i can do Circle.new.is_a? Shape, but what about the equivalent for the class? Circle.is_a? Shape doesn't do what I want
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<zil2>
honestly, I am not sure how much I will be using ruby/this in future... just needed something quick and paid someone who sent it, then dropped off the radar when we needed this slight modification on errors...
<atmosx>
louism2wash: is your program going to be a gem or something?
<Radar>
the who?
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<zil2>
atmosx: if on stack overflow, please reply with that tiny mod and I'll upvote/mark as answer when I can
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<MattB>
Okay, I"m back! :-)
<louism2wash>
atmosx: no, I just thought that lib was a ruby standard??? Is there a standard place to put my class files I guess would be a better way to ask that question :)
<atmosx>
zil2: A guy already replied, I'm on SO too but never mind ;-) Upload that guy's answer, it was correct.
<porfa>
hey guys, instead of telling a string to delete specific characters str.[2..-1] cant i specify a patern instead?
<jenrzzz>
zil2: it's #include?, with a question mark
<MattB>
WOuld you mind taking a look?
<MattB>
Thanks!
<jenrzzz>
porfa: yes, you can pass a regex to String#[] and it will return whatever matches
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<sdegutis>
The main benefit of Clojure over Ruby so far appears to be the complete lack of worrying about method name collisions.
<MattB>
The main bit is what to do instead of: a.map!.with_index{|v, i| (a[i..a.count].inject(&:+).to_f/total*100.0)}
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<jenrzzz>
sdegutis: also it's like orders of magnitude faster
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<sdegutis>
Not JRuby.
<sdegutis>
jenrzzz: Meh.
<jenrzzz>
yeah, i meant MRI
<jenrzzz>
dat JVM
<sdegutis>
jenrzzz: I don't really see that as a primary advantage.
<sdegutis>
jenrzzz: The majority of my app's job is translating one string to another string. Pretty easy stuff.
<jenrzzz>
nah, but it's a pretty nice secondary advantage
<jenrzzz>
i've been wanting to do a clojure project for a while
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<jenrzzz>
MattB: so, what question is this data answering exactly? how many users have registered in the past N weeks?
<MattB>
Oh, I think Authenticator may have hinted at a solution, but I missed it because he did it an array of vowels, not numbers (so sum but not percentage. Does this look better:
<jenrzzz>
sdegutis: oh, i wouldn't expect or want it to be
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<sdegutis>
jenrzzz: Especially Rails's security stuff.
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<zenspider>
MattB: you're suffering from a severe lack of clarity. This whole thing is a mess from top to bottom.
<sevenseacat>
yeah i hate when things are conventient too
<sdegutis>
There's nothing. Literally nothing. That helps you out.
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<sdegutis>
sevenseacat: lol
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<sevenseacat>
convenient
<MattB>
Sorry jenrzzz, missed your question, an apologies to all for the code spam
<jenrzzz>
sdegutis: i'm looking to escape from dhh's magical universe to one of my own creation
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<sdegutis>
jenrzzz: Okay then Clojure is totally for you.
<MattB>
jenrzzz: IT's basically looking at number sign-ins per week against number of sign-ups for a cohort
<sevenseacat>
i prefer to have a solid foundation made by people smarter than me
<sdegutis>
jenrzzz: I totally wanted that too. But after doing Clojure web app full time for a few years, I'm kind of wanting something a little bit more automagical.
<MattB>
zenspider: could you be more specific, you're sffering from a severe lack of clarity ;-)
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<jenrzzz>
MattB: what's wrong with what we had before? you can just sum the percentages of weeks before if you want to get the running totals
<sevenseacat>
this isnt going to end well
<jenrzzz>
sevenseacat, sdegutis: yeah, that's why I haven't done a clojure project yet
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<sdegutis>
:)
<jenrzzz>
but someday someone will come up with a stupid idea and i will agree to build it for them just to play with some new tech
<MattB>
jenrzz, I must be missing something obvious then - otherwise, given the simple array of percentages, I'm back to .map.with_index to iterate over it and sum the percentages.
<MattB>
This gives the desired result: a = [1,2,3,4,5] ; b = a.length.times.collect {|i| a[i..-1].inject(&:+) / a.inject(&:+).to_f * 100}; b
<MattB>
As does this: a.map!.with_index{|v, i| (a[i..a.count].inject(&:+).to_f/total*100.0)}
<jenrzzz>
MattB: then just use that?
<jenrzzz>
idk, if you are asking for design feedback or best practices, you can't just limit it to the tiny aspect that you're stuck on
<jenrzzz>
we need the big picture to come up with the optimal solution
<jenrzzz>
what do you do with that hash after it gets returned? try to focus this method on just the transformations that need to be applied to make the data useful
<jenrzzz>
the summed/running percentages sound more specific to the analysis part than the transformation part, which is why it makes more sense imo to return the hash with each week's percentage
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<MattB>
I see what you're saying then
<MattB>
It gets dumped to a Rails view, and graphed
<MattB>
The graph library expects the numbered hash format, with the percentages summed....
<MattB>
I tried it with the plain percentages, but you can't compare cohorts, as the discrete percentages get thinned out, the longer ago the cort signed up
<jenrzzz>
is it a JS graphing library or ruby?
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<jenrzzz>
also, where does this functionality live in your app?
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<MattB>
It's google charts (JS) via Chartkick (Ruby)
<MattB>
At the moment the code is in the User model
<jenrzzz>
what's the method called?
<MattB>
User.cohorts
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<jenrzzz>
so you're just doing <%= sexy_chart(Users.cohorts) %> ?
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<MattB>
Exactly
<jenrzzz>
is there more to this method than the code you showed us? how long is it?
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<MattB>
That's it, bar the line that pulls the values from the db, which is using the groupdate Gem to group the data by week
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<MattB>
Let me post the whole thing as a pastie...
<jenrzzz>
yeah, it'll help to see it in situ
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<jenrzzz>
MattB: so, i think this is *ok* if you just want to draw the graph and be done with it. but if you expect to be doing a lot more with cohort analysis, it'd be worth it to do some better design here
<jenrzzz>
you definitely want to extract a couple methods from #cohorts
<Blizzy>
thank you, MattB.
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<MattB>
jenrzzz: I'm new to cohort analysis, so this was a first experiment, as is probably painfully obvious! What methods would you extract as a starting point?
<MattB>
(And thanks BTW!)
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<lampd1>
<3 that feeling when you transition from knowing about something to grokking it
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<jenrzzz>
lampd1: what are you newly grokking?
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<lampd1>
jenrzzz: actually just started down the path of trying to grok a few new things ;)
<benzrf>
lampd1: learn haskell
<benzrf>
there will be so much stuff to grok
<benzrf>
it is just nuts
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<lampd1>
nty
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<benzrf>
oh?
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<lampd1>
maybe after i've moved on from working on learning ruby/rails and python a bit better :P
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<lampd1>
and xtlang, lol
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<jenrzzz>
MattB: lines 6-8 should be in another method, but i'm not sure what to call it
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<MattB>
Wow, thank you very much! I was half-way through having a go myself, but this is much better!
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<jenrzzz>
zenspider: can you tell me everything is going to be okay?
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<porfa>
guys im in need of help, i just dont know what to do :( im fetching a url adn some products have [0][?href?], [1][?href?],[2][?href?]... some products just have one link, so when it tries to get [1][?href"] it quits and stops getting the rest of the data :(
<jenrzzz>
porfa: code plz
<porfa>
ok, posting
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<jenrzzz>
zenspider: why do good things happen to bad people?
<porfa>
dont blow the coffee out of your mouth, this is my first ever going at programing, *ever*
<jenrzzz>
what are you trying to do?
<porfa>
i am trying to get all the image file links from that url
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<porfa>
and other data, and exporting to csv
<porfa>
the output is alredy formated for my csv needs
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<porfa>
if there was a way for ruby to count the numver of links before i actually request them, then it would know how many links to go after
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<porfa>
or i cold just put some command to ignore and carry on with the script if thats possible, i would be ok with that, though its the easy way out
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<pontiki>
porfa, probably a stupid question, but why do you have semi-colons separating things instead of commas for part of your output in the puts statement?
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<pontiki>
another question, why do you get the images if you only want their urls?
<porfa>
my other software acepts csv product info formated like that
<pontiki>
semi-colon separated files?
<porfa>
because the urls are .asph?docwtv
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<porfa>
pontiki: yes
<pontiki>
weird as
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<porfa>
for ie.. ?name;description;image1, image2, image3;weight"
<pontiki>
that's not a csv
<porfa>
i know what csv stands for, im sorry about
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<porfa>
it?s just the software calls it ?csv import? and i?ve been using it for quite a while
<pontiki>
and, like, at line 68, uriimg1 is not the same as mechaimg1 after you run the get?
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<porfa>
let me check
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<jenrzzz>
zenspider: where do rubyists go when they die?
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<MattB>
jenrzzz: Makes me sad that I will /never/ be able to churn out code the way you can. I think from now on I should leave programming to the professionals! :-)
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<pontiki>
porfa, as a first effort? this is pretty good
<jenrzzz>
heh, all i've done all day is answer questions in IRC because i'm unable to churn out the code people pay me for
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<jenrzzz>
other people's problems always seem easier, if not more fun :P
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<pontiki>
hehe, jenrzzz
<porfa>
lucky me! ahah
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<porfa>
that mechanize thing you did looks awesome, again thank you!
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<pontiki>
you can save a bit by doing something like: image_urls = doc.search('li.image').map{|i| i.children.first['href']}
<MattB>
pontiki: isn't a scope just a method by another name though on this case?
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<MattB>
(in this case)
<pontiki>
it is, but they're more descriptive
<pontiki>
and more usable
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<pontiki>
retain the method you have for .count.value, but using the scope
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<MattB>
I guess that would be more correct, although not sure what it might ever be reused for! :-)
<crocket>
Is ruby on rails good with websockets?
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<pontiki>
also, you know there is #rubyonrails channel?
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<crocket>
pontiki, I couldn't remember it.
<pontiki>
not that you haven't been getting great help here; i just know there are some denizens of #ruby that really hate talking about rails :P
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<pontiki>
oh, crocket, yeah, i was addressing that to MattB , but yeah
<crocket>
pontiki, Why?
<pontiki>
you'll have to ask them when they start to whinge. :)
<crocket>
Why do ruby people hate rails?
<MattB>
pontiki, yes, but I originally came to ask a ruby question about using map, and the scope (hoho) gradually expanded!
<pontiki>
see previous answer, crocket
<porfa>
i?ve noticed the text output is quite diferent from before
<porfa>
is there another method to transform text ? :o
<pontiki>
um, porfa, there are a huge number of methods that transform text
<porfa>
but i just want to [2..-5]
<MattB>
jenrzzz went from helping answer my original question to refactoring my godawful Rails method, so we ended up talking Rails in #ruby.
<porfa>
im sorry
<MattB>
I did wonder how long it would take someone to complain ;-)
<pontiki>
i need more context, porfa
<MattB>
Everyone's being very patient with me. :-)
<pontiki>
*what* text, what do you want from it, etc
<pontiki>
MattB: *i'm* not complaining!!
<pontiki>
i <3 <3 <3 rails
<pontiki>
(not that it doesn't sometimes frustrate me greatly, too. :) )
<porfa>
its outputing this "[\"Bluetooth, cobertura ate : 10 m\" from ?specs2? and before it was outputing ?Bluetooth, cobertura ate : 10 m?
<porfa>
my quotations marks are switched to questions marks, what the hell
<pontiki>
i think something is being mistranslated in our character encodings, porfa
<pontiki>
i don't see the difference
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<pontiki>
ah, ok
<MattB>
<3 Ruby, <3 Rails, do not have the brains to be good at either. Oh well!
<pontiki>
put it in a pastie, then, porfa, that usually works
<rpag>
rails doesn't require a brain :P
<pontiki>
and here we have it!!
<pontiki>
crocket: ask rpag why they hate rails
<MattB>
rpag: then I'm officially brain-dead! LOL
<crocket>
rpag, Just because rails doesn't require a brain, it doesn't mean rails is bad.
<pontiki>
i think most of them hate rails because rails made ruby popular
<crocket>
It could mean the opposite
<rpag>
hate is a pretty strong word
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<rpag>
i just dislike the path rails has taken so far
<pontiki>
and they can't have their tiny little exclusive niche
<crocket>
Rails is so good that anyone can use it.
<sevenseacat>
or when people say ruby they automatically presume you mean rails
<rpag>
pontiki, you're being hella presumptuous
<pontiki>
rpag: i am, yes
<pontiki>
"rails doesn't require a brain" is rather presumptuous as well
<rpag>
it was a joke
<pontiki>
if not downright insulting
<rpag>
hence the ':P'
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<pontiki>
so is mine
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<rpag>
oh okay then
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<rpag>
on a serious note, i don't think rails is the best way to build a web application anymore, at least not since javascript frameworks started popping up everywhere
<benzrf>
tbh rails DOESNT require a brain
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<MattB>
See, that's why Rails isn't for zombies like me :-D
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<rpag>
nah, it's just something you should be aware of
<pontiki>
does that need to be a class method?
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<MattB>
Which one?
<pontiki>
percent_retention_by_period
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<rpag>
i think it does, it's called from another class method
* JDHankle
tries to hack together gtk3 and vagrant
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<MattB>
Dumb question - where should I put it otherwise? It's pretty specific, and only used by this class...
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<pontiki>
idk, i'm not sure what the overall thing is for
<pontiki>
not really sure why those are in a persistence model
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<pontiki>
maybe they should be in a presenter model
<MattB>
As a whole it formats data for graphing cohorts, so yes, it's probably in the wrong place, but it was the easiest place to start from :-)
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<MattB>
And I still struggle to know where best to put things. Fat model, skinny controllers, no, no , skinny everything, no presenters, no decorators. Agh!
<pontiki>
there are no shortage of opinions
<JDHankle>
I'm trying to get vagrant and gtk3 to talk to each other. The only way I can think to do this is to create a vagrant plugin and somehow deamonize the gtk3 code using `vagrant whatever start|stop`. The alternative appears to be to write a cli wrapper, which sounds awful.
<pontiki>
and p.much anything i might say over irc is going to be woefully incomplete
<jenrzzz>
there are a lot of right ways to do it
<jenrzzz>
only you have the knowledge to decide which is best
<pontiki>
sometimes what's right in one place is wrong in another, that's where it gets fun
<pontiki>
but it never requires a brain, or thinking!!
<pontiki>
just using a robot!!
<MattB>
:-) I"ll be okay then.
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<MattB>
Right, it's 3:45am, so I will thank you all for your generous help (esp. jenrzzz, pontiki) and and call it a night.
<pontiki>
sleep well
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<jenrzzz>
cheers!
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<MattB>
Thanks, g'night.
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<jimmyhoughjr>
im having trouble with either rvm or rbenv on debian
<jimmyhoughjr>
I can't seem to get bash to find the commands, even when i add the appropraite lines to the .bashrc
<tmoore>
jimmyhoughjr: did you load a new shell?
<jenrzzz>
jimmyhoughjr: did you `source ~/.bashrc` or reload your shell?
<jimmyhoughjr>
i was ssh'd in, i closed the connection and relogged in
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<jenrzzz>
jimmyhoughjr: where did you install them? also, which would you rather use?
<jimmyhoughjr>
i suppose rbenv
<jimmyhoughjr>
in my home folder, im going back through the rbenv steps now
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<jenrzzz>
jimmyhoughjr: i think you might need to source your .bashrc from your .bash_profile
<jenrzzz>
jimmyhoughjr: SSH'ing in is a login shell
<jimmyhoughjr>
it seems to be working now, I think i had forgot to append the shims to .bashrc
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<jimmyhoughjr>
im setting up rails4 on a beaglebone black
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<jimmyhoughjr>
they recommended ruby 2.1.0 if i recall
<jenrzzz>
why rails?
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<jjconti>
hi
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<jjconti>
is there someonewith experience developing simple 2d games in ruby?
<jjconti>
Im wondering which is the state of the art
<rpag>
jjconti, #gosu ?
<jjconti>
gosu or rubygame?
<jjconti>
other?
<jjconti>
I've experience using pygame
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<jimmyhoughjr>
cuz its better than jnode.js imo
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<jimmyhoughjr>
"node.js"
<jjconti>
is any of this two similar to pygame rpag?
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<rpag>
jjconti, not familiar with pygame
<jjconti>
gosu seems more live that rubygame
<jimmyhoughjr>
jenrzzz why not?
<jenrzzz>
jimmyhoughjr: yeah, but on limited hardware like beaglebone, rails brings a lot more bloat than you probably need
<jimmyhoughjr>
web development is so much more complicated than say iOS or windows
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<rubie>
hi all: i was wondering if anyone out there knew of any other beginners that were hungry to learn as much Ruby as humanly possible. I would love to have someone to skype with and talk through problems with, maybe even build something. Thanks!
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<Authenticator>
Or, def show_alive s ; print "processing #{s}: " ; t = Thread.new { loop do ; print '*' ; sleep 1 ; end } ; yield ; ensure ; t.kill ; end ; show_alive('pings') { o = `ping -c5 google.com >/dev/null` }
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<sevenseacat>
dafuq
<henesy>
Authenticator, thanks, i'll paste that for future reference, I got a temporary enough fix...i think...doesn't do what I want it to do exactly, i'll come back to this tomorrow
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<Authenticator>
sevenseacat: ?
<shevy>
Authenticator it's a potty-mouthed cat obviously
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<rpag>
st1gma1, $? would be nil or a Process::Status object.
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<rpag>
for example: $?.exitstatus == 0
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<st1gma1>
yeah you are correct rpag
<st1gma1>
I didn't think it throughly
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<badhatter>
Is there a way to convert a Gemfile.lock into a Gemfile
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<gizmore>
ricer-core will get renamed to ricer-bot
<gizmore>
ricer-fullbot is a demo project which uses ricer-bot, ricer-rss, ricer-websockets, ricer-purple
<shevy>
I don't see it on rubygems.org
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<gizmore>
its only github
<gizmore>
i am new to all this
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<shevy>
seems as if there are a lot of github-only based projects :(
<shevy>
not only with you, in general really
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<gizmore>
yeah... it´s nice
<gizmore>
you can clone with a single click
<gizmore>
do a patch online
<gizmore>
voial
<gizmore>
i like it
<gizmore>
github has done great to oss
<sevenseacat>
github is pretty awesome.
<gizmore>
yeah!
<sevenseacat>
not perfect, but awesome.
<gizmore>
btw, all my gem hashes fail
<gizmore>
i always have to calc sha512 collisions
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<hanmac1>
shevy & gizmore hm maybe for "patch online" something like that? ;P https://orionhub.org
<gizmore>
digicert tls... seriously?
<gizmore>
blank page without js
<gizmore>
seriously?
<gizmore>
Sorry, your browser is not supported. The latest version of Chrome, Firefox or Safari web browser is recommended.
<gizmore>
Continue anyway?
<gizmore>
i think i might still fake my UA to playstation4
<gizmore>
indeed
<gizmore>
hanmac1: on github you just click "clone", then patch it, and in your gemfile you use gem 'purple-ruby', git: 'gizmore/purple--ruby'
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<gizmore>
can do with activerecord too
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<hanmac1>
gizmore: hm yeah, but that is if you want to edit your cloned repo more online than only doing one-file-commits
<gizmore>
it´s great for experimenting, and works
<gizmore>
you can also checkout your clone, and work seriously
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<gizmore>
with all that history and linking on github, it´s easy to merge different people ideas
<gizmore>
and a clone is just a single click away... i like github :)
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<gizmore>
i am not getting paid by github... and i felt bad as i added a second key
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<gizmore>
crypto always does make me feel bad though
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<hanmac1>
gizmore: i didnt say anthing against github ... with that orionhub you can sign in with your github account and can edit your repositories there too
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<gizmore>
ah okay ... it looked like a disfunctional notepad to me
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<gizmore>
shevy: i miss you in shadowlamb
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<shevy>
I need to get work done!
<gizmore>
i wanna test weather command :P
<shevy>
I need to finish my rewrite of konsole colours
<siaw>
aaaaa i think i explained myself badly
<siaw>
i want to pass a folder as an argument :D :D
<siaw>
in the constructor
<gizmore>
sheepman: you should first settle if you use bright or dark background
<gizmore>
shevy: you should first settle if you use bright or dark background
<sevenseacat>
dark background ftw
<deepy>
shevy: base it on solarized dark
<gizmore>
siaw: your problem is now to create a dir object?
<sevenseacat>
ugh why does everyone love solarized
<shevy>
gizmore dark background for konsole
<gizmore>
white xterm ftleets
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<deepy>
sevenseacat: why don't you?
<shevy>
white background in xchat
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<siaw>
no, not to created a directory object
<sevenseacat>
the contrast levels are horrible
<shevy>
deepy it is a pessimistic cat
<siaw>
to accept a folder as an argument in the class’s constructor
<sevenseacat>
half of it doesnt contrast enough and half of it constrasts too much
<deepy>
I'm accepting replacements
<gizmore>
siaw: you have been given examples of how to copy a parameter into an @instancevar
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<shevy>
siaw there are no "folders" man, it is a directory. inside your setter, simply check on the provided input. if File.directory? your_input_variable_here
<gizmore>
def initialize(param); @dir = param; end
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<gizmore>
this copies the argument into @dir
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<unshadow>
I'm trying to parse out an http response, I got the response in a file (i dont need to "GET" it from a website), I want to parse it for path, body, headers etc.. all the examples I see with NET:HTTP is only available after "GET"ing the response from a URL
<unshadow>
is there a way to parse it from a file ?
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<gizmore>
unshadow: maybe it´s more smart to not save it to a file, unless you really want to
<unshadow>
It's not really from a file, it will be from a socket read, I need to parse it directly while its comming in
<unshadow>
if it will work from a file it will work on the socket read, all it gets is a string in the end
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<unshadow>
now NET::HTTP can only parse the response from an "http.request(request)" object which is actually just a "request = Net::HTTP::Get.new(uri.request_uri)"
<unshadow>
I dont want to "GET" it, just parse it
<shevy>
hmm
<shevy>
why do we have the name of the method .to_sym and not .to_symbol ?
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<sadgrapeissad>
hello guys! I've been banging my head for a while now. I'm creating APIs and I'm using GrapeAPI ... I want to catch a particular exception... how do I do that?
<sadgrapeissad>
I wanna catch this --> Grape::Exceptions::ValidationErrors
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<sadgrapeissad>
I tried using rescue_from but a rescue_from :all ...catches it
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<mrgrieves>
how can I define variables inside a method and then use them outside once the method executed?
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<tobiasvl>
you can't, you need to define the variables outside the method's scope somewhere and manipulate them inside the method
<tobiasvl>
mrgrieves: defined inside a method, variables only live for the method's scope
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<mrgrieves>
tobiasvl: thanks, so define them outside but assigning values inside is ok
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<hanmac1>
mrgrieves: make a gist or a pastie of what you want
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<tobiasvl>
mrgrieves: I agree with hanmac1. defining them outside but assigning values inside works, but if it's ok depends. if they're instance variables, then it's very ok. if they're global variables, I dunno.
<shevy>
mrgrieves store them e. g. in @ivars
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<shevy>
mrgrieves or global variables but they are leaky, they are valid everywhere, so if you have a $debug var, and some other code also has a $debug var, obviously whoever last writes to it wins, so that is kinda bad. you could also abuse constants to store stuff :)
<hanmac1>
tobiasvl & shevy i store all my variables in @bagOfHolding ;P
<Lingos>
I'm working on a ruby project but I got stuck with some simple html/css. The positioning I made works with chrome and firefox but not with safari. Is there any super kind person that can spend 15-20 min paring with me?
<shevy>
mrgrieves it is usually best to turn code such as this into a class
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<shevy>
what variable is the one that has to be persistent?
<shevy>
and btw store this with file ending .rb in a gist, then it will be automatically colourized
<tobiasvl>
mrgrieves: shevy is correct, but this looks like a ruby replacement for a shell script really? if you don't want to go the object oriented route, I guess just declare the variable above the method.
<mrgrieves>
the problem I'm lokking at (I'm sure there are many but there's one I want to fix in particular) is that I want run_summary to be defined at the last iteration of the mco_retry block
<canton7>
at the very least set it up so tab inserts 2 spaces :P
<canton7>
half the amount of key-banging
<shevy>
I never use tabs
<shevy>
I used a hammer to wipe out the tab and caps lock key!
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<canton7>
in almost every editor ever you can configure it so that the tab button inserts spaces
<shevy>
and the MS logo on my keyboard
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<shevy>
yeah but you have to hit the tab key
<canton7>
I normally map caps lock onto something else too :P
<canton7>
tried backspace for a while, but couldn't get into the habit
<shevy>
my left hand sits mostly near ... ctrl ... alt ... and the left side of the alphabet roughly
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<shevy>
hmm let me check which hand uses space
<Baluse>
thanks shevyl
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<shevy>
oh... right hand, my thumb there
<shevy>
weird
<unshadow>
why when I read a file in "rb" mode I get a string like this: "��` I�%&/m�J�J��t�`$ؐ@���" but when I use unpack("B*") I get 0101010 ?
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<unshadow>
Why when I read a file in "rb" mode I get a string with wierd shapes, but, when I do .unpack("B*") on a string I get 010101010 ? isnt the "rb" flag stands for read binery ?
<tobiasvl>
unshadow: yes. if you use "rb", you read the bytes
<tobiasvl>
that's how the byte values are printed
<canton7>
unshadow, the 'b' just means "don't do end-of-line character conversion"
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<canton7>
it doesn't mean "convert to some other format"
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<unshadow>
I see, how can I use the "rb" logic on a string ?
<canton7>
not sure what you're asking
<canton7>
ruby won't do automatic end-of-line conversion on a string
<canton7>
just when reading/writing files
<apeiros>
canton7, unshadow: 'rb' also sets encoding to binary
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<apeiros>
unshadow: how are you printing that string?
<apeiros>
unshadow: also what does `p yourstring.encoding` print?
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<apeiros>
unshadow: also code please. that unpack("B*") result looks highly suspicious. you pasted *7* bits. that makes no sense whatsoever.
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<unshadow>
Well, My issue is that, I'm trying to use gzip on an HTTP gziped response, I split the response to headers and body, on the body I'm trying to decompress the string using gzip, I'm keep getting "not in gzip format", doing a little bit of googling I saw that when this happens for files, you need to read them in "rb" mode
<unshadow>
my string returns UTF-8
<unshadow>
and the 7 bits is just an example :) not the real deadl
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<unshadow>
you can see that in the code I split the headers and body, then try to "unzip" (gunzip?) the body
<apeiros>
I don't see any read with "rb" in this?
<gizmore>
unshadow: use a http client
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<apeiros>
body = data.split("\n\n").to_a[1..-1].join("\n") # broken right there already.
<unshadow>
yeha... I dont read this from a file, I get it as a string, then, I get the "not in GZIP format", when googling the error the solution is using a read "rb"
<gizmore>
or activeshootme.domagic
<apeiros>
header/body separation is \r\n\r\n
<Timgauthier>
uh oh, i'm doing php again :(
<apeiros>
and if you have something *before* this code which removes the \r's, then you have your culprit already.
<gizmore>
what if it is chunked?
<gizmore>
or it is 7bit encoded?
<gizmore>
what if spdy comes?
<apeiros>
also, if data.encoding returns utf-8, something is off before that code anyway. it should be binary.
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<unshadow>
why ? the http states : Content-Type: text/html; charset=utf-8
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<apeiros>
unshadow: it also states content-encoding gzip
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<apeiros>
so either your thingy unzips the data for you, or it should give you the binary gzip
<gizmore>
unshadow: btw zlib != gzlib
<apeiros>
because gzipped data is not utf-8.
<unshadow>
I sohuld use "gzlib" ??
<gizmore>
it could be a reason
<apeiros>
(which is also exhibited by all those "�" invalid character signs in your output)
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<apeiros>
gizmore: Gzip reader is for gzip
<unshadow>
how would I re-encode the data to binery format ?
<unshadow>
from the UTF-8 ?
<apeiros>
so while zlib maybe != zlib, it's perfectly suitable to read gzipped data.
<apeiros>
*!= gzlib
<unshadow>
maybe the to_s messes with the encoding ?
<gizmore>
hmm really?
<apeiros>
unshadow: fix the code before the code you pasted
<gizmore>
unshadow: utf8 encoding issues should only mangle the output a tiny bit... your gzip decoding is not fine yet
<apeiros>
unshadow: if the data is otherwise undamaged, force_encoding('binary') will do. but since you split on \n\n instead of \r\n\r\n I'd say your data is damaged.
<gizmore>
i am just saying that there is not an utf8 problem yet
<unshadow>
Thanks ! I'll look into it now
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<apeiros>
unshadow: also your output looks as if whatever you used to get the data did not properly read chunked data. the chunk lenght seems to be still in it.
<apeiros>
^ is a guess, though. I may be wrong on that.
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<apeiros>
well, an educated guess. "26de\n" does not look like the start of gzip. it does very much look like length part of chunked encoding.
<gizmore>
apeiros: sounds like we have a winner
<unshadow>
hm.....
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<unshadow>
this means I need to wait from more data to come to build the full gziped page ?
<apeiros>
unshadow: we're back at: show code. the relevant. the one which gets (and seems to mangle) your data.
<apeiros>
this means whatever you use to read your data does not speak http 1.1.
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<unshadow>
it's not
<unshadow>
it reads form socket
<unshadow>
raw data
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<apeiros>
use a proper http lib then
<gizmore>
i said that 20 min ago
<apeiros>
the other option is to read the >100 pages of http spec.
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<apeiros>
and implement a proper http reader. I somehow think that's not what you want to do.
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<unshadow>
hahah yeha... but, I do have a problem, I cant use an HTTP lib as I do alot of manipulation in the socket/tcp/ssl level
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<unshadow>
the whole code is a proxy
<gizmore>
unshadow: use a http lib that somewhat is ... not bad?
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<apeiros>
I feel sorry for whoever has to use that proxy.
<unshadow>
hahah
<gizmore>
apeiros: it is also a firewall :)
<apeiros>
no, seriously. you obviously don't know the protocol and didn't bother to read up on it.
<gizmore>
sigfaults all outgoing
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<unshadow>
the proxy works great, the only issue I get is the Gzip, all the other little things are taken care of
<apeiros>
yeah, sure…
<unshadow>
:/
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<apeiros>
you have proper keep-alive, proper cache header settings, etc.?
<gizmore>
apeiros: it is "works great on one php testpage"
<apeiros>
you process all headers explicitly for proxies and more. right?
<gizmore>
ericli: you can load the file with Yaml.load() ... then use the weird join above
<gizmore>
to port it to the weird string you want
<ericli>
gizmore, sure, thanks a lot
<gizmore>
yw :)
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<dr0p>
hello, does anyone use rubocop with ubuntu ? I cannot find way to disable checking linelenght. Github: Metrics/LineLength: Enabled: false doesn't work
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<clarkk>
I have an ubuntu system and I'm trying to work out how I installed ruby some time ago. I have a ~/.rvm directory and the environment is set up fine. Can anyone explain how it got there?
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<clarkk>
or how I can work out what procedure I used?
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<disperso>
clarkk: but what do you want exactly? reproduce it in other place?
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<clarkk>
disperso: I'm just trying to document my procedure so that it's not so much of a struggle next time i have to set it up. I also have an OS X system, and yes, I will need to document that too, and also get it up to date, but I'm just dealing with the ubuntu box for now
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<disperso>
clarkk: well, the difference between them, I guess that it will be that both linux distributions and os x have a ruby version shipped built in. The rest is pretty much the same, no? Add configuration to your .bashrc, .zshrc, etc.
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<shevy>
clarkk you probably installed rvm
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<clarkk>
disperso: when you run the rvm installer, as per the instructions, ie \curl -sSL https://get.rvm.io | bash -s stable --ruby does it put everything in ~/.rvm and leave no other trace anywhere else on the file system, regardless of where you ran that command?
<shevy>
clarkk you also probably have an additional ruby
<shevy>
the ubuntu ruby
<gr33n7007h>
I need help, what I'm trying to do is iterate from 0.0.0.0 to 255.255.255.255 going like 0.0.0.1, 0.0.0.2, 0.0.0.3 ... 255.255.255.255 ?
<shevy>
clarkk yes
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<clarkk>
shevy: no, I haven't installed it from the ubuntu repos
<shevy>
ok so you have only one ruby
<shevy>
that makes it all even simpler!
<gr33n7007h>
would i need 4 loops?
<shevy>
if you remove .rvm in your home dir, you have eliminated ruby completely :)
<shevy>
gr33n7007h well
<shevy>
gr33n7007h the max value is 255 for each position right?
<gr33n7007h>
shevy yes
<shevy>
ruby won't know this unless you tell it specifically
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<shevy>
so you have these values
<shevy>
(0..255).(0..255).(0..255).(0..255)
<clarkk>
shevy: so the "bash -s stable" is what installs the files, and then deletes any downloaded install files?
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<gr33n7007h>
yes
<shevy>
dunno what bash -s does
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<apeiros>
gr33n7007h: (2**32).times do |i|
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<apeiros>
gr33n7007h: what you have is 4 bytes, each byte represented individually as its numeric value 0-255.
<gr33n7007h>
apeiros, ok yep
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<gr33n7007h>
listening
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<gr33n7007h>
this is what I thought but: 0.upto(255) { |a| 0.upto(255) {|b| 0.upto(255) {|c| 0.upto(255) {|d| puts "#{a}.#{b}.#{c}.#{d}; end; end; end; end but it seems so wrong
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<gr33n7007h>
ah, shevy yours is similar to mine
<shevy>
hehe
<clarkk>
ok thanks disperso and shevy - I think I've got it
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<gr33n7007h>
apeiros, looking at IPAddr.ntop now thanks
<shevy>
gr33n7007h yeah I am sure there are better solutions
<gr33n7007h>
apeiros, solution looks the right one
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<shevy>
what is your new code now?
<apeiros>
gr33n7007h: well, it's eather what you did or a single iteration over all 4 billion values in a single iteration and converting the value
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<dualz>
i have a question, what net framework and your opinion why, should I be using for ruby when doing an angular based site? I'm trying to decide between sinatra and rails
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<disperso>
dualz: both are fine IMHO for an API.
<disperso>
depends on many other things, why I'd chose one or the other
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<ruber>
Is it possible to use rbenv with $GEM_HOME to avoid having to reinstall gems for every minor version Ruby update, ie. a single collection of gems for all versions?
<txdv>
looks like the shortest way to do it siaw
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<siaw>
shouldn’t be the shortest way. i need ANOTHER way to do it :D
<shevy>
Wraps the meth method with Debugger.post_mortem {?} block.
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<shevy>
meth synthamine drug
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<shevy>
Walter White is in da house
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<gr33n7007h>
:D
<Timgauthier>
shevy lol
<pontiki>
ohwhoa: you can just use the apropriate gem for the type of database you're using...
<Timgauthier>
shevy you ever work with aws?
<shevy>
Timgauthier nope
<Timgauthier>
don't
<Timgauthier>
lol
<shevy>
lol
<shevy>
tell you, I am kinda stuck in the 1998 era of the www
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<Timgauthier>
you get shit like this https://d34oapiz2jbm97.cloudfront.net/nln-video/blank_video.mp4?Expires=1415194265&Signature=G6-aHtGl9~1Fr-9BFaJr16Rh3JFvjkq7fwFcRA-xNlZsf5zzbAdvaiSfMmf77~ZvHIvLqeBt5dbOfikubRtT7RJCGEKpMwHZ2ywqVW4MLOG7ZDEYCjtGG49ANnkYMqWVoWDIHRZcWU7R4DuvNhaKiH4ZkD8Z~BaVmbn9mpDPmcPPHui4evWO40w6~TAbq1VTAEDdbXpghdwkqR2oxie0xUbWN3iRwVKZTESxplJZ9DfOqT7m4-3qKhS~w-essCSTfAxSFEY6gW~CxYF6fEhy55gzQX7-c3NO91HuHtec7Ox7v2ZXHkyQ8FBYMIxDS0LNEl23~
<eval-in__>
gr33n7007h => "the quieter you become, the more you are able to hear" (https://eval.in/217828)
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<zlude>
Hello! I'm doing a iteration from database to get all data listed, but i what to send it by e-mail, how can i do for this iteration output be sent by Mail.deliver body?
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<jhass>
zlude: what did you try so far?
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<zlude>
jhass, look: http://pastie.org/private/bzvyl3dwqnp5fahyy9hrg puts "Id: #{circuito.id}" returns me all rows associated to user "me", when in run in console i get result, but now can i sent by my Mail.delivery? how can i put this output in body?
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<jhass>
non-English code always makes me sad :(
<zlude>
jhass, let me english it for you.
<jhass>
anyway, don't use puts but build a string instread
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<jhass>
no need
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<jhass>
zlude: Have a look at String#<<, Array#join, Array#map and so on
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<alex88>
hi guys, is there an option to force overwrite executables during gem install?
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<jhass>
alex88: does gem install --help list any?
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<alex88>
jhass: nope, just --force but that's to force dependencies
<jhass>
alex88: then you can guess the answer
<alex88>
kk great.. :S
<alex88>
thanks jhass
<jhass>
alex88: but you might be interested in gem pristine
<alex88>
not sure how that can help
<alex88>
unless you mean removing other versions
<alex88>
before installing
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<jhass>
gem pristine should rewrite bin's too iirc
<jhass>
in fact has an option to only rewrite those
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<alex88>
to restore, I'm dealing with damn aws opsworks that installs bundled ruby in the same folder where system ruby installs gem's executables
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<zlude>
jhass, i'm a little bit confused, i'm a beginner in ruby, in php it appears more easy to do i guess.
<jhass>
zlude: did you read some basic ruby tutorials?
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<jhass>
zlude: you can do basically the same as in php to do string building, but there are nicer alternatives
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<jhass>
>> [1, 2, 3, 4].map {|n| n.to_s(2) }.join(".") # zlude, to just scratch the surface
<jhass>
bahar_: never looked at backburner but from the readme examples, Sidekiqs API looks a lot less redundant for me with more sane defaults chosen for you
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<jhass>
hanmac1: that's not even fewer characters!
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<bahar_>
jhass: thats good, because it looks like sidekiq is more actively maintained, too
<rdark>
basically I want to ensure that an array (correct XML terminology?) is emptied and only contains my wanted entry
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<jhass>
rdark: nope, no arrays in xml
* rdark
goes into the wrong room
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<rdark>
jhass: just out of interest, whats the equivilant in XML?
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<jhass>
O
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<jhass>
sorry
<jhass>
I'm not sure I'd say there's one
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<jhass>
XML is a tree structrue
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<jhass>
so "a node with only leave childs" maybe?
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<jhass>
*leaf
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<at3560k>
Hi there, I've googled a bit, but haven't found quite what I'm looking for... could someone recommend an examplary cookbook or gist with an ini file/singleton pattern for an application config?
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<banisterfiend>
apeiros ping
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<apeiros>
pong
<apeiros>
*sob*, headache doesn't help solving equations. not having done it for years doesn't help either :-(
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<Cat_1>
What equation?
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<apeiros>
Cat_1: calculating interception course in 2d space
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<Cat_1>
Good luck sir :)
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<apeiros>
I think I have solved it. but I keep getting wrong results :-/
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<Cat_1>
Equations of motion are fun
<jhass>
at3560k: there's a ton of context missing in your question
<Cat_1>
gist it?
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<apeiros>
it doesn't seem to be difficult. but I lost practice and headache doesn't help either :-/
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<apeiros>
Cat_1: it's JS. but I'm happy if somebody takes a look :)
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<Fractional>
What's more right? class Foo; @updater = Updater.new; def initialize(a); @a = a; end; end or: class Foo; def initialize(a); @updater = updater.new; @a = a; end; end?
<twohlix>
k, and maxspeed is the magnitude of the xy vector you can do. 0 acceleration time?
<jhass>
zlude: doesn't change my answer
<at3560k>
jhass: I'm a bit new to ruby, have found the ini file and am writting a command line driven application. There'll be typical options such as "debug" that could override a user's .rc file. I was simply looking for an...idiomatic way to write this. Looking at ini file documentation, I'd expect it to use...symbols instead of strings
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<apeiros>
assuming constant velocity of the target ship and assuming we can immediately turn in that direction and travel at full speed
<twohlix>
k, cool
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<apeiros>
twohlix: correct
<apeiros>
would be too complex if I'd factor that stuff in too :D
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<twohlix>
yea, you'd be doing some calculus :)
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<Fractional>
.
<Fractional>
What's more right? class Foo; @updater = Updater.new; def initialize(a); @a = a; end; end or: class Foo; def initialize(a); @updater = updater.new; @a = a; end; end?
<apeiros>
I'll leave that as an exercise for people implementing adjutants :D
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<Fractional>
Sorry if double post, I believe I was disconnected.
<apeiros>
(adjutants will be pieces of code which take over tasks for you - such as managing your ships)
<apeiros>
so there's none "being more right". you'll have to say what you intend to do
<at3560k>
jhass: yes, I'm reading the documentation on ersion 3.0 right now
<Fractional>
apeiros, how are they not equivalent? Both are declaring and initializing @a in the constructor. The difference is where @updater gets declared and initialized.
<apeiros>
twohlix, Cat_1: I'd gist the equations. but they're scribbled by hand on paper :D
<twohlix>
yea
<twohlix>
I've figured the EQs out i think
<Fractional>
Is there a reason to why my teacher decides to declare and initialize variables outside of the constructor, if it does not have anything to do with the constructors parameters?
<apeiros>
Fractional: yes, first one does not have @updater in your Foo instances
<apeiros>
>> class Foo; @x = 1; end; Foo.new.instance_variables
<jhass>
at3560k: I'd suggest you get pry (pryrepl.org), load the gem and play around a bit ;)
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<at3560k>
All I'm getting at is looking at those documents, from what I've seen is that it feels...different from other ruby I've been using. I would expect the sections to be :symbols. I can write it, but it feels... like I'm not understanding a use pattern
<apeiros>
>> class Foo; @x = 1; end; Foo.instance_variables
<apeiros>
Fractional: ^ compare those two pieces of code and their output
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<Fractional>
Oh right.
<Fractional>
Thank you :P
<Cat_1>
I'm assuming you want a = sqrt(targetVelocityX*targetVelocityX + targetVelocityY*targetVelocityY - ownMaxVelocity*ownMaxVelocity)
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<at3560k>
I'll look into it...thanks
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<Cat_1>
Looks like you're trying to do a pythagorean identity there
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<jhass>
at3560k: well you generally don't want to convert user input (like configuration files) to symbols, so the gem rightfully keeps the internal structures as strings. But at least things like Inifile#[] seems to call #to_s on the argument, so you can very well pass a symbol and it should work
<apeiros>
I'll try to transcribe my equations. but give me a second first. want to check something first.
<apeiros>
well, second == ~5min :)
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<at3560k>
So maybe I've been learning an anti-idiom... good to know.
<at3560k>
thanks
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<apeiros>
Cat_1: pythagoras only comes in as a part of the equation - ownVelocityX^2 + ownVelocityY^2 == maxOwnVelocity^2
<Spami>
by any chances does anyone knows how to remove ruby-install and all rubies ?
<Fractional>
.
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<balazs>
does anyone know if Fog::AWS::SQS has a state in it ? I cannot seem to receive the same messages twice, even though it is not deleted from the queue.
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<twohlix>
apeiros, you shouldn't have to do quadratic at all
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<balazs>
duh, nm, must be the Default Visibility Timeout
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<Cat_1_>
man my internet connections' been whacky lately
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<apeiros>
hm, it seems to be a problem with numeric stability when "a" goes towards zero in the quadratic equation
<apeiros>
otherwise it seems to produce proper results
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<apeiros>
Cat_1_: what's the rationale for using sqrt there?
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<apeiros>
I'll gist the equations. transcribing now. will take a couple of minutes I guess.
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<electrical>
Hi all. i have a string version of a hash due to limitation of the gemspec file ( metadata field ) is there a nice way to convert it into a real hash? would like to avoid using 'eval' :-)
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<workmad3>
electrical: I'd suggest storing it as a string of json or yaml
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<jhass>
^ but I wonder if there's actually anything enforcing that restriction?
<electrical>
workmad3: storing as json could be possible yeah
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<zlude>
jhass, i give up.
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<jhass>
zlude: what did you try?
<jhass>
(don't paste the same thing again)
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<shevy>
haha
<jhass>
did you read some basic ruby tutorial like I suggested?
<shevy>
paste it!
<shevy>
show it man!
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<zlude>
jhass, in fact, i really don't understand what you means with your example. I search in web how do that, but don't work! i create a var @test = "test" and call body "#{@test}", nothing on email body is going. just if i put static text. body "test" so, works.
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<zlude>
shevy, i do @test = "test" and then.. body "#{@test}", nothing on email body
<tobiasvl>
zlude: you have some weird quotation marks in that code
<shevy>
nope
<jhass>
zlude: show the "doesn't work" example
<shevy>
but btw, in that example you can omit the #{} -> body @test
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<tobiasvl>
or is it just my font
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<shevy>
body "" # How can i get the output from 'books' in my e-mail body?
<shevy>
what do you mean with books precisely
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<jhass>
tobiasvl: probably a combination of pastebin.com and your font
<shevy>
this here?
<shevy>
books = @author.books
<tobiasvl>
zlude: I'm guessing you want to use the output that you puts on line 39? you never use that output for anything besides printing it to screen
<tobiasvl>
put the result from the each block into a string and use that?
<shevy>
zlude always keep your code as simple as possible
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<jhass>
shevy: it's fairly simple already
<shevy>
I dunno
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<jhass>
zlude: still waiting for your actual attempt, not your "I don't know further, solve it for me"
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<shevy>
he writes stuff like "How can i get the output from 'books' in my e-mail body?" but I don't see 'books', I see 'book' like book.id
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<zlude>
<shevy> "books = @author.books" ?
<shevy>
is that books?
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<shevy>
I mean I don't know what it returns
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<shevy>
you probably want a string representation
<shevy>
that's kinda hard to debug remotely!
<tobiasvl>
I'm 100% sure zlude means he wants books to be the concatenation of the strings from all iterations on line 39
<tobiasvl>
so zlude, do that
<shevy>
aha
<shevy>
now that is a lot clearer to me
<jhass>
tobiasvl: already pointed him to map and join
<shevy>
yes zlude have you used .map?
<shevy>
I guess he gave up
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<zlude>
shevy, I really don't understand how map can help me.
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<shevy>
well
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<shevy>
what is books
<jhass>
zlude: let's work on that when we figured out why passing a static variable to body didn't work for you
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<zlude>
shevy, so, what is collect it?
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<apeiros>
I think I have to special case a ~= 0
<shevy>
zlude well, we need to agree that you want to send some text towards body() right?
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<twohlix>
apeiros, there is always the case where the thing you're trying to intercept is faster than the ship you're using to intercept. Sometimes they'll have an intersection point, sometimes they wont.
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<apeiros>
twohlix: yes, that's when the quadratic equation yields no result
<zlude>
shevy, I want to send in body the @author.books from "Linda Liukas"
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<shevy>
he never says yes or no :(
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<apeiros>
twohlix: there's also the case where it has the same speed and same heading -> uninterceptable too. also yields no result for quadratic.
<shevy>
ah ok non-native english speaker
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<shevy>
zlude you can run debug statements in your code; require 'pp'; pp @author.books - it probably won't work alone as it is not a string, and body() probably wants a string or?
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<shevy>
but I would not write it like that, I would break it into small chunks so that my poor brain and my poor eyes don't have to stare at long lines
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<jhass>
zlude: that's because some weird ruby trick Mail.deliver does
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<jhass>
zlude: it changes the scope for where @instance_variables are looked up
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<jhass>
which then also allows you to call methods like to in that scope
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<shevy>
aaaah
<shevy>
how evil
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<apeiros>
I think not all of the result cases I handle for the quadratic equation should be possible, though :)
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<zlude>
shevy and jhass, thank you a lot guys, and I'm sorry for my fucking newbie skills :/ i'll continuing on study.
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<shevy>
hey that is non trivial zlude
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<shevy>
I did not keep in mind that it could change the meaning of @ivars
<shevy>
I find that really evil
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<shevy>
it hopefully is not matz approved!
<jhass>
zlude: I could have pointed that out a lot earlier if you just shared your actual attempt ;)
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<jhass>
so don't be sorry for being new to ruby
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<zlude>
jhass, shevy... means my code is a shit? I really like webapps, and i will learn Rails soon, but i really need to try to understand ruby first. So i'm trying to do with just ruby somethings possible with php.
<shevy>
zlude dunno, there is not a lot of your code is it? you just use a lot of code written by other people
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<jhass>
zlude: no, that's totally not what I'm saying
<shevy>
jhass there is the language barrier!
<jhass>
zlude: you always shared the "last working" state, why I asked for the state that actually fails
<zlude>
shevy, wtf! i write by hand code by code in this example.
<MattB2>
in your _order partial render order.line_items
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<shevy>
zlude well you just use code written by others really ;)
<jhass>
MattB2: channel
<MattB2>
jhass sorry
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<zlude>
shevy, I'm not a php prog, i'm newbie in php too, i'm beginning with dev, so a friend said, php sucks, learn ruby. so i come to ruby instead php
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<shevy>
learn php first - you will want to switch at a later time anyway :)
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<shevy>
apeiros wrote a lot of php code when he was young
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<shevy>
and look what he now does - rails, rails, rails
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<jhass>
zlude: note that shevy talks a lot of nonesense if the day is long, don't take all of it too seriously ;)
<apeiros>
shevy says that right after I pasted javascript :-p
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<shevy>
well now that is an option
<shevy>
zlude you could learn javascript first
<zlude>
jhass, but, my code in this example, my Ruby code is bad written? or not.. i'm using it surely.?
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<jhass>
there's not much room in there for bad code tbh
<zlude>
shevy, i know a little bit of javascript
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<jhass>
zlude: whatever language it is, focus on one to learn programming. picking up new languages is a lot easier afterwards
<apeiros>
"why does ruby complain about this non-ruby code?!?" well, no idea :-D
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* jheg
looks sheepish
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* jheg
slowly exists irb
<jheg>
exits
<jheg>
ffs
<apeiros>
twohlix: now on to the next problem - intercept with an "orbit" (since weapons have an optimal firing distance) :)
<apeiros>
though, I'll probably not do that now. exercise for adjutant implementors too.
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<apeiros>
providing intercept and orbit functions should be sufficient to get started
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<jhass>
you game devs, I'll never get you. All wannabe mathematicians
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<apeiros>
jhass: guess why I totally support my wife studying maths :-p
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<apeiros>
statistics will come in handy for balancing
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<apeiros>
too sad she's not interested in computer games. well… not yet… *cooks up plans to drag her into it*
<Fire-Dragon-DoL>
are there any function to select an array of indexes of elements of an array? I need to pick index 3,7 and 10 from array
<apeiros>
Fire-Dragon-DoL: values_at
<Fire-Dragon-DoL>
thanks apeiros, and that's the right trick by the way :P
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<Fractional>
Anyone here who offers code reviews for student-level code? Please message me. It's < 1000 lines. Would be appreciated :)
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<avril14th>
Hello, how does one write a ruby regex that could turn the string 'some key is the key' into the array ['some key', ' is the key'] (when using String#match) ?
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<havenwood>
Fractional: Paste a link to a Gist here in the channel?
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<avril14th>
jhass: 'key' appears nowhere in the regex, how can be?
* avril14th
goes trying
<jhass>
oh, three words
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<jhass>
avril14th: maybe make a list with real world examples, I think your abstraction is wrong or at least confusing
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<havenwood>
avril14th: what are the rules for where to split?
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<havenwood>
avril14th: more examples of correct split!
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<avril14th>
'some weird sentence with weird whatever 12384786/&() things in the weird' => ['some weird',' sentence with weird',' whatever 12384786/&() things in the weird']
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<avril14th>
split up to a given word (in above example 'weird')
<jhass>
avril14th: stop the abstractions already
<shevy>
that is a weird sentence
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<jhass>
if that's your real example this sounds like homework
<jhass>
in which case I only give you hints: split + lookbehind assertion
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<avril14th>
homewhat?
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<shevy>
homesex
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<shevy>
you have come to the weird part of the internet
<shevy>
welcome to #ruby!
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<romistrub>
what kind of Error should I raise if a received string does not match the expected format?
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<romistrub>
for example, if I'm validating an HTTP request, and the request is malformed
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<avril14th>
romistrub: 400 Bad Request I would do
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<romistrub>
avril14th: sure, that's what I'll send, but in the code itself, should I create my own Exception class called BadRequest? and if so, which Exception should it inherit from?
<avril14th>
romistrub: this is your own organization to decide
<jhass>
in doubt StandardError
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<romistrub>
hmm, ok, thanks guys
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<avril14th>
romistrub: my way: use api-pie gem and rescue the exception it throws
<gsd>
are there any tools / services that will automatically email me when either ruby or one of my gems has an updated version
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<Fractional>
havenwood: Thank you, will look into it. Is there anything else you are thinking of?
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<havenwood>
Fractional: It's nice to have the file structure mirror the namespace. Think about what namespace your code should be in.
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<avril14th>
and if you don't follow the structur Rails will complain if u use rails
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<havenwood>
Fractional: Typically we require each file individually, explicitly.
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<wm3|busy>
avril14th: you can ignore the file structure in rails... you just need to explicitly require stuff like in normal ruby... it'll complain if you let anything fall back to autoloading that isn't in the convention-based structure
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<wm3|busy>
avril14th: i.e. it falls back to being as difficult as normal ruby, rather than not being possible ;)
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<Fractional>
havenwood, Ok, got it. Will re-organise file structure, follow the RubyGems-style file structure and namespacing. Is there anything else you see in the code? I appreciate all feedback :D
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<havenwood>
Fractional: Just in case you don't know the globbing double splat, what you're requiring in those three lines is equivalent to: Dir['lib/**/*.rb']
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<havenwood>
Fractional: looking
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<Fractional>
havenwood: Oh, that's cool!
<avril14th>
wm3|busy: indeed but you may expose yourself to strange behaviors, such as ActiveSupport::Concern modules complaining about multiple loadings or simple plain autoloading of failes failing silently
<havenwood>
Fractional: drop the './' prefix too
<havenwood>
Fractional: also the .rb suffix
<havenwood>
oh, nvm
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<havenwood>
from the require, but not your glob
<havenwood>
meh
<wm3|busy>
avril14th: heh :) I don't touch ActiveSupport::Concern modules, and autoloading just doesn't engage if the constant is already present (which is why rails has always needed you to do things like load monkey-patch files in lib/ext manually)
<wm3|busy>
avril14th: but yeah, it's less than ideal, and it can be awkward to work around
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<havenwood>
Fractional: If you don't need to support 1.8, which is past end-of-life, then I think 1.9-style Hash syntax when keys are Symbols is nice.
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<Fractional>
havenwood, I agree with you - are you referring to the resourceloader?
<havenwood>
Fractional: *code change for the humans :)
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<Fractional>
havenwood, good idea! :)
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<Fractional>
havenwood, is there a prettier way to do the active? method in button.rb?
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<havenwood>
Fractional: just keep the middle line
<havenwood>
Fractional: @active can only be `nil` or `false`, and line 32 returns correctly it seems
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<havenwood>
Fractional: is that what you want? ^
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<havenwood>
Fractional: @active = false if @active
<Fractional>
havenwood, will have to check in a moment! Working on the refactoring, thanks a lot for all the feedback ! :)
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<havenwood>
Fractional: No prob.
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<Fractional>
havenwood, nope I wanted the state before the changed state to handle my button clicking events (in example_state.rb#update)
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<havenwood>
Fractional: Ahh
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<havenwood>
odd
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<Fractional>
havenwood, I know what I am missing - a gemfile!
<havenwood>
Fractional: Seems strange to respond to `active?` by changing `@active`'s state to `false`, then return the past state which is no longer the case.
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<havenwood>
Fractional: Gemfile ftw!
<Authenticator>
Is there a way to use catch/throw (not raise/rescue) from a sub-thread?
<Fractional>
havenwood, it's only going to contain one gem, but might as well go for it!
<wallerdev>
no
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<Fractional>
havenwood, will write up documenting in my to-do list
<havenwood>
Fractional: but yeah, simple enough to create a gem by hand ;)
<havenwood>
Fractional: a skill worth leveling up on
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<Fractional>
havenwood, I am confused now. It created a git repository within my already existing git repository :o
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<Fractional>
havenwood, is this how things should be?
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<havenwood>
Fractional: the command creates a new directory for your new gem, it's just a presumption bundler makes
<havenwood>
Fractional: you can nuke the directory it creates, it's just a template for creating a gem from scratch
<havenwood>
Fractional: there're more than one ways to do it too
<havenwood>
tools other than bundler, plenty of folk just do it by hand, or write their own gem generator
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<Fractional>
havenwood, what name does the 'nuke' command go under?
<workmad3>
Fractional: 'rm -rf' on a *nix
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<workmad3>
Fractional: on windows... right click and 'delete'? :P
<Fractional>
workmad3, oh, thought you had to do more. Nevermind.
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<workmad3>
Fractional: :)
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<Fractional>
havenwood, how do I generate the gemfiles with bundler in working directory?
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<havenwood>
Fractional: copy the generated files to your working directory
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<havenwood>
Fractional: you can check `bundle help gem` but i don't think bundler has sophisticated options, you're left to your own devices
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<havenwood>
it just has basic bootstrapping from scratch
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<Fractional>
havenwood, oh ok thank you for the advice. Will definitely do this.
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<Fractional>
havenwood, your spotting of the odd button#active? method handling helped me solve a bug. Thank you!
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<boombadaroomba>
Maybe better luck here. I need help with a conditional statement. https://gist.github.com/JasonY1/b9518ccf14b5d158d026 I want it to ensure end_date is after start_date but end_date is not required to create event.
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<wallerdev>
boombadaroomba: what do you need help with? whats the issue
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<boombadaroomba>
wallerdev: i think i figured it out. writing the question out helped me take a step back and evaluate
<wallerdev>
:)
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<boombadaroomba>
I always get problems solved here. Thanks!
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<fwaokda>
I setup ruby with rbenv, but I can't seem to figure out how to execute my ruby script. can anyone help me out?
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<fwaokda>
I put "#!/usr/bin/env ruby" at the begininng of the script, but running "ruby myfile.rb" doesn't work. I did "which ruby" and get "/home/username/.rbenv/shims/ruby"
<romistrub>
Does Ruby infinitely loop if I do this: begin something rescue MyError raise MyError end (i.e. I'm raising the error within the rescue clause)
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<jhass>
romistrub: no
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<romistrub>
fwaokda: what's the error output in the shell?
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<romistrub>
jhass: thx
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<shevy>
romistrub if you want looping rescues, you could use retry :)
<shevy>
begin rescue retry profit! end
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<fwaokda>
huh just typed it now and it works... i really don't know what has changed... :( romistrub, thanks for helping me ... figure it out?
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<romistrub>
fwaokda: anytime :P
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<romistrub>
shevy: thxu but I was just trying to figure out the Exception handling behaviour
<shevy>
retry!
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<bahar_>
has anyone here set up backburner or beaneater for job queuing?
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<Rapier->
Anyone happen to come across ruby functionality to extract internal domain name from SMTP (NTLM AUTH) challenge response?
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<sweeper>
is there a convention documented somewhere for commands to be included with gems?
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<jhass>
shevy: stop guessing and admit you have no idea what his data structure is either
<shevy>
jhass I am not guess, I am providing guides
<jhass>
porfa: you told us nothing about your datastructure, we can only guess stuff
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<porfa>
jhass: im very sorry, i always forget or ahve little knowledge on that, im new to programing and ruby is my first ever attemp to program, im really really ?high? level rightnow
<porfa>
??
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<porfa>
i am trying to get only the link that containts FR from ?temp = doc.xpath('//*[(@id = "Downloads")]//article ').collect {|node| node.text.strip}'
<porfa>
so i will just grep the output, because atm is the only way i know how
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<jhass>
so you got an Array (collect or its shorter alias map return one)
<jhass>
Array got a methods Array#grep
<jhass>
havenwood demonstrated its usage above
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<jhass>
or you can probably extend to xpath to match it
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<jhass>
[contains(text(), 'FR')] or something
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<havenwood>
or check #include? 'FR' when mapping then #compact
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<havenwood>
when collecting* >.>
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* jhass
is still a .select.map'per
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<rpag>
.map is nicer cuz less characters to type
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<shevy>
yes
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<shevy>
the .collect-ers must die
<naftilos76>
Has anybody used ruby to connect to a mail server? I am connected as we speak but i can only access root messages (inside inbox). How can i access subfolders?
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<tobiasvl>
what gem is that?
<kyle__>
But I like .collect
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<jhass>
and what protocol?
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<jhass>
kyle__: that goes away
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<rpag>
i think the stdlib has Net::IMAP and Net::POP
<kyle__>
Noooooooooo
<kyle__>
jhass: Which version does it go away in?
<jhass>
I mean the feeling
<kyle__>
Ahh.
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<rpag>
kyle__, think of the hard drive space you end up wasting! :P
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<jhass>
naftilos76: if you want any help you need to answer the follow up questions
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<jhass>
apeiros: quikole spams
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<apeiros>
jhass: go ahead :)
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<naftilos76>
jhass: what would those be?
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<jhass>
apeiros: thanks. You know I had no problem to make this more permanent :P
<apeiros>
naftilos76: "22:10 tobiasvl: what gem is that?" for example
<kyle__>
I think it's imap.select, and in the terms of that library you're looking at a "box" not a folder.
<kyle__>
I think.
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<kyle__>
Whoever it was asking about the imap library
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<apeiros>
jhass: hm? freenode irc doesn't let you add channel access flags just because you're op
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<naftilos76>
sorry, i thought it was irrelevant to my question
<jhass>
apeiros: mmh, I always forget that
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<apeiros>
naftilos76: also "22:10 jhass: and what protocol?"
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<banisterfiend>
xanderwebs sup civilian
<naftilos76>
i am using 'net/pop' gem
<xanderwebs>
sup banisterfiend
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<banisterfiend>
not a lot, just meditating on my immense ruby knowledge and feeling k00
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<rpag>
lol
<apeiros>
*sob*, I always forget how atan2 works, even though it is trivially simple :-|
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<naftilos76>
i connected to my email server but all i had in hand was : pop.emails (array) and with each array element i could do element.pop to get the full body of the message
<porfa>
i’ve just choosen “encoding” utf-8 in my irc client…is everything ok? quotes —> “
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<porfa>
exclamation mark —> ? singles quotes —> ‘
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<jhass>
the exclamation mark is still weird
<jhass>
the quotes are quotes but not the ascii variants
<dorei>
it showed a question mark
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<porfa>
it’s “utf-8” i need to change my irc client… im so sorry about this, i’ve been flooding the channel with help requests when i cant even paste right
<porfa>
im sorry it was meant to be question mark —> ? exclamation mark = !
<siaw>
nothing i just want like a different way to write it
<siaw>
:)
<jhass>
why?
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<siaw>
because i want to see how someone else thinks :)
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<jhass>
I'd write it that way exactly
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<WhereIsMySpoon>
i dont even remember what &: does
<WhereIsMySpoon>
or :+
<WhereIsMySpoon>
well :+ is a symbol for add i guess
<porfa>
new try…. i want to replace every — “, —in specs with — \newline+bulletpointchar• — so specs2 = “#{specs}.tr(‘“,’ , ‘\n•’) is taking all my commas not the quotation+comma
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<crome>
not sure about the full context but activesupport has #sum
<siaw>
well i ask cause learning ruby i realised that i write some code that does one thing and another person write another code that does the same thing but in a different way so i wanted to see how someone would write it
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<WhereIsMySpoon>
porfa: if im understanding correctly, did u try to escape the quotation marks?
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<jhass>
porfa: the quotes are still the typographically correct ones, not " and ' like ruby expects them, so it's still a bit hard to follow