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<havenwood>
drakedouay: np, happy hacking!
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<nfk>
is there some SAN preserving introduction to ruby stack?
<havenwood>
nfk: What is SAN preserving?
<nfk>
i'm seeing some very extremely unspeakable behaviour from my rails application and the only explanation i can think of is stack magic
<nfk>
havenwood, SANity point preserving
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<havenwood>
nfk: #RubyOnRails might be a better forumn.
<havenwood>
sec
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<havenwood>
sic
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<nfk>
havenwood, they are not answering
<havenwood>
nfk: Aha!
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<havenwood>
nfk: Can you paste a gist of the unspeakable behavior and error results?
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<nfk>
sorry, proprietary
<havenwood>
nfk: Hrm. Makes it hard.
<havenwood>
nfk: Error only? :P
<nfk>
let's just say that a helper module is repeating code from the action itself
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<nfk>
no error
<havenwood>
nfk: Sounds like #RubyOnRails domain.
<nfk>
it's duplicating code that it should not have access to in my puny mind
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<nfk>
but since a lot of ruby magic is in the module i expect some of that magic might be leaking
<havenwood>
nfk: If we can't look at the magic, seem hard to divine.
<nfk>
sorry
<havenwood>
s/seem/seems
<nfk>
as i said, it should be stack related as i expect that's how a method might have implicit access to stuff defined outside it
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<Eiam>
about the one time when I dislike working at a corporation
<Eiam>
is when seeking help on code =)
<Eiam>
"sorry, proprietary!"
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<havenwood>
Proprietary code at a 'stealth mode' startup, ftw?
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<blaines>
hey there. I wrote a module that gets included into another. Both modules have siblings with the same name (Configuration) but when I reference Configuration in the module that gets included it only refers to it's Configuration (not the included one).
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<blaines>
I can write up an example if necessary
<SQLDarkly>
Has anyone used slop before? I have a question regarding subcommands, but am having difficulty as my opts are nil. Curious if im accessing them correctly
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<blaines>
but basically I want to include a module that can access the configuration of the including module
<Spooner_>
"return them all concatenated" - what are "them all"?
<nfk>
three string objects
<nfk>
or more
<nfk>
the really evil part is that they are results of some evil evaluations
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<nfk>
right now i use local variable named "a" and do = the first time and then += but surely there's some better way
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<nfk>
i mean, this is something a 1st year student might come up
<nfk>
in pascal
<Spooner_>
Which you probably don't need, but I know that trying to convince people of that is madness. Concatenating strings, however, you can just a + b + c
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<Spooner_>
You particularly shouldn't use += because that creates an entirely new string rather than concatenating. Use << instead.
<nfk>
Spooner_, ugh, the a b and c are not methods but still evil nested code
<nfk>
Spooner_, << doesn't work, actually
<nfk>
i was a bit surprised too
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<Spooner_>
Does for me.
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<nfk>
yes, it works in irb with simple tests
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<nfk>
but when i try to use it in the real code, only += works
<Spooner_>
But you are describing code that I can't see, so hard to debug it for you :)
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<nfk>
there's nothing to see
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<Spooner_>
If there is no code, then it doesn't need to be fixed.
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<nfk>
and the actual html output of the rails application is giving me tachycardia if i trigger the right unspeakable horror behaviour
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<nfk>
Spooner_, a << method arg1 do a_block follows end
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<nfk>
a_block_follows
<nfk>
using += works as expected but not using <<
<Spooner_>
I wish that made any sense.
<Spooner_>
That is because of arguments. You need a << method(arg1)
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<Spooner_>
It is parsing it as (a << method) arg1
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<nfk>
and += is different?
<Spooner_>
When in doubt, parenthesise.
<nfk>
aren't both binary operators?
<Spooner_>
It has a different precedence, obviously.
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<nfk>
but that different?
<Spooner_>
Yes.
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<nfk>
thanks for at least clearing that part
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<nfk>
Spooner_, and is really using a local variable for final return (implicit of course) really the right style?
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<Spooner_>
I don't see why not.
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<Spooner_>
At least here were you are constructing a string from the results of several calls.
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<nfk>
but.. but.. CUTENESS
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<nfk>
having a local variable that's there only to hold some intermediate results is not cute
<nfk>
why must programming be engineering? why can't it be art
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<Spooner_>
So just use + then, between the different methods. Again, I can't elegantise invisible code.
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<hakunin>
guys
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<hakunin>
could somebody explain wtf is going on here
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<hakunin>
ruby 1.9.3p327
<hakunin>
echo "require 'minitest/autorun'; class FooTest < MiniTest::Unit::TestCase; def test_foo; assert_equal('0x0', '0x1') end end" > foo.rb
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<hakunin>
ruby foo.rb
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<Spooner_>
hakunin, You maybe want to explain what doesnt' make sense and also to pastie code note paste it.
<Spooner_>
*not paste it
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<innohero>
hi
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<plotter>
Does anyone have experience creating a website using rubys without rails?
<plotter>
*ruby without rails.
<Spooner_>
plotter, There are lots of other options than Rails. Sinatra, for example.
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<plotter>
Ah yes someone else told me that I would want to check out sintra.
<waxjar>
i <3 sinatra
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<plotter>
Maybe that should be where I begin. I just want to be different thats all no specific reason why I do not want to use rails.
<waxjar>
you'll probably want to read up on HTTP and REST first a bit though, steve klabnik has some great articles written on them
<plotter>
I'm googling it now. Thanks waxjar.
<waxjar>
yw
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<innohero>
@plotter sinatra is amazing, especially when you use in-line templates along with your ruby code, you simply can create a full prototype in one file, very convinant
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<breakingthings>
is there a particular way to test return values with RSpec?
<breakingthings>
or is `subject.method('whatever').should == 'expected result'` the way to go about it
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<v0n>
hi all
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<v0n>
Why do I have to add/commit the Gemfile.lock file again?
<mehwork>
don't have to
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<mehwork>
if it's a gem you shouldn't
<mehwork>
if it's for your development team you probably should
<mehwork>
v0n: because it will ensure that they will have the exact same 3rd party code as you
<mehwork>
instead of having to guess which versions to install
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<v0n>
mehwork: that's for a development repo with a friend, not a gem. But I still don't get why the Gemfile file isn't enough
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<mehwork>
v0n: because the gemfile will install a ton more gems behind the scenes
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<mehwork>
the Gemfile.lock will also include all those so that bundle install won't have to recalculate them and possibly get them wrong
<aedornm>
v0n: Gemfile.lock contains version information, so it makes sure every gem is the exact same between developers or production environments.
<mehwork>
so it's both a consistency thing and a performance thing
<mehwork>
and a documentation thing
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<mehwork>
i think .lock is a bad extention for the file though. It makes it feel like something that should not be committed
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<mehwork>
can't complain too much though as RubyGems/bundler are amazing tools that i wouldn't wanna nit pick too much about
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<waxjar>
the gemfile.lock lists the exact versions of the dependencies you're working with
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<waxjar>
if you include it in your project, you can be sure no errors stem from a backward incompatibility or w/e in one of the dependencies
<v0n>
mehwork: ho ok, I get it, tell me if I'm wrong:
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<v0n>
in your Gemfile you specify data_mapper version 1.2,
<v0n>
but it depends of tons of gems, let's say dm-validations 0.0.1
<v0n>
the Gemfile.lock will say "dm-validations 0.0.1"
<v0n>
if this particular gem is updated but not the data_mapper gem, then only the gemfile.lock can tells you which version you dev folks have
<v0n>
right?
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<v0n>
ok I wasn't clear at all, but I think I understand myself
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<v0n>
mehwork: I agree though, it's confusing
<waxjar>
imagine that data_mapper gem defined the dependency on dm-validations like this: ~> 0.1.0. you release your gem depending on data_mapper, you tested it locally with dm-validations 0.1.1. the devs of dm-validations found a bug, fixed it, but also introduced a new one that breaks your gem. now if you didn't give people your gemfile.lock, they'd get dm-validations 0.1.2 (the one that breaks your gem).
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<waxjar>
maybe that doesn't make sense. i'm tired :p
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<v0n>
waxjar: you were as clear as me
<v0n>
so I understood you
<v0n>
:)
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<v0n>
in fact, Gemfile list gems you think you need, Gemfile.lock lists all gems *and their dependencies* you actually use.
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<waxjar>
exact versions yea, so you're working with the same "stack" i think it is they call it
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<mehwork>
is there anything for rope.vim for ruby instead of python?
<mehwork>
i mainly want something that when i save the file, tells me if i have any unused variables, syntax errors, etc
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<jblack>
I seem to be having a problem with destroy when using datamapper with sqlite under sinatra.
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<jblack>
in configure I'm doing a Cache.destroy, which is intented to wipe a particular table clear. however, something is coming along after that point and removing records from the cache table created after that.
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<jblack>
and it only happens if I do a Cache.destroy in configure. otherwise, things work exatly as anticipated.
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<jblack>
I can actually watch, in a console, with a "select count(*) from caches" where the number of rows goes up, then goes back down.
<jblack>
but again, only if I have a Cache.destroy in the configure block.
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<jblack>
the problme doens't seem to happen if I replace Cache.destroy with a Cache.all.each.destroy
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<jblack>
oh, and it only happens on one system. it doesn't happen on another system
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<jblack>
hmmm, one is using ruby 1.9.3.p194 (works as expected). the other is using 1.9.3.p0
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<aedornm>
sweet.. only 90 minutes to parse through just slightly over 1 million records in MySQL
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<blazes816>
o.0
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<breakingthings>
Anyone around familiar with threads I can ask some conceptual stuff to?
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<mehwork>
goddard: depends. Generally you can just run 'ruby file.rb' or './file.rb'. Otherwise if you don't knwo what file to run directly, type 'rake --tasks' to see a list of available tasks
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<mehwork>
if it's a rails app, it will be a whole different way of running it, e.g,. by doing 'rails server' and going to your browser like http://locahost:3000
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<bawigga>
I can't seem to get httparty to log debug output, when i run my tats via rspec
<bawigga>
tests*
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<bawigga>
in my class i have:
<bawigga>
include HTTParty
<bawigga>
debug_output $stdout
<bawigga>
then using rspec w/ autotest, I don't get any debug info
<bawigga>
any ideas?
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<ElderFain>
right now I've got three methods (create & load, store file, read file) and it feels more messy than it needs to be.. like I should be able to say in one method "create this file if it doesn't exist & add this data to it, read the file if it already exists & append this data to it"
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<shevy>
in the first if branch you return something instantly
<shevy>
in the else structure, you dont care about what you return at all
<shevy>
from a conceptual point of view, this is strange
<ElderFain>
shevy: yeah.. as i mentioned now its currently 3 separate methods, a read method, a write method and a create method
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<ElderFain>
but I was doing all these checks to either "create the file if it didn't exist, read it if it did, or read & append" which felt silly
<tcstar>
what IDE's do you guys find best when working with ruby/rails? I tried RubyMine and while nice -- i didn't like the cursor functionality -- where clicking in a line places the cursor wherever i click even if the line is shorter than wherei clicked.
<shevy>
well that seems like a logical step-by-step point
<shevy>
try_to_create_file
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<ElderFain>
tcstar: sublime_text
<shevy>
read_file
<shevy>
I dont quite understand why you must read _and_ append at the same time
<shevy>
I never had to do that so far
<ElderFain>
shevy: it didn't seem like marshal could handle appending
<ElderFain>
it looks like it has to read the whole thing in, modify the object, then write it back out
<shevy>
aha. no idea. I dont use marshal, it was too confusing for my poor brain. I am yamling all the time
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<shevy>
eh sounds like how one uses yaml
<ElderFain>
which I don't particularly like mind you
<shevy>
YAML.load_file
<ElderFain>
it was just the first think i ran into
<shevy>
YAML.dump
<tcstar>
Thanks ElderFain.. I'm downloading it now, as well as the RubyMine (i paidfor it along side PHPStorm -- may as well install it)
<ElderFain>
shevy: sounds like marshal.. marshal.load & marshal.dump =0
<shevy>
tcstar I dont use rails. but for plain ruby, I try to use a simple editor. right now bluefish 1.0.7 still. (bluefish 2.x changed so many things, I hate it now :( )
<ElderFain>
hows that solve streaming into a file?
<shevy>
ElderFain define "streaming". I always manipulate the data structure in ruby, then store via YAML.dump
<tcstar>
bluefish have the syntax highlighting shevy? I think as beginning with ruby/rails -- that'll be of benefit to me
<shevy>
tcstar dunno. you may love or hate it. I like it. in 1.0.7 that is... 2.x changed highlighting too, which I hate
<shevy>
I was considering moving to geany or sublime one day
<ElderFain>
shevy: right, thats what I'm doing with marshal. load the object in, modify it in ruby (by appending to it usually) then write it back out
<shevy>
ElderFain ah so you dont append to the file directly? you modify the internal data in ruby right?
<ElderFain>
but that means i pay the cost of reading in the file
<ElderFain>
shevy: right
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<shevy>
ok so you dont want to read in a file
<shevy>
how can you then modify the data structure? :P
<tcstar>
yeah ive never really played with geany.. limited with sublime.. I used to use Aptana Studio -- then I switched to PHPStorm.. but phpstorm doesnt have ruby S/H
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<ElderFain>
shevy: sounds like a problem a streaming library should solve not me! =)
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<shevy>
I think the only problem I had with yaml files was when they got big
<shevy>
starting at around 2 MB in size, such a big hash slowed down things quite a bit
<shevy>
but typically, my yaml files for even larger projects are still fairly small
<shevy>
a big config file is like: 31K configuration.yml
<tcstar>
yeah that sucks... in php i use symfony -- and some of my yml files make me want to puke @ how large they are
<shevy>
and that includes comments!
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<shevy>
how large are they?
<ElderFain>
shevy: basically I have to make requests out to a web service and get a response. when I get a response I load the file & append the response. sometimes I don't get a response, so it goes into another file. when its done running, I'll usually run it later for other information gathering, in which case I load the 'cached' data so I don't repeat requests
<tcstar>
biggest one i have is somewhere around 4M
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<ElderFain>
sometimes the service responds, sometimes it doesn't, so its useful to repeatedly make a request until I get a response, without repeating requests
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<ElderFain>
hmm these are around 90KB or so atm, so not huge
<shevy>
tcstar hehe ok that's quite getting fat
<shevy>
pffft 90 KB that's the size of my little toe
<shevy>
you handcount every byte don't you ElderFain!!!
<tcstar>
yeah... it's one of my yml files for routing... for a CRM i built...
<shevy>
I once wanted to register every file on my hdd
<shevy>
you know, a "package manager" in ruby, using yaml
<ElderFain>
shevy: just trying to be smarter about my development
<shevy>
but yaml is too slow for that when you have several thousand files to register :(
<tcstar>
might re-do the crm in ruby -- if i can figure out how to get my apache to listen on another port -- and serve up a ruby app... (unmanaged VPS)
<ElderFain>
focus on things I traditionally don't care about
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<ElderFain>
whoops was missing an end ;p
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<ElderFain>
basically no matter what it gives you back the data in the file, either with it appended or with what already existed in it
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<shevy>
dunno, I would not use it
<ElderFain>
cause it does multiple things?
<shevy>
def rw_file
<shevy>
that too
<shevy>
but it starts that the method name alone does not give me meaningful information for the style I use when writing ruby
<chrishough>
c/lear
<shevy>
hey chrishough ;)
<chrishough>
hey shevy
<ElderFain>
guess i can go back to read_locally & store locally
<ElderFain>
and just have them both handle creating the file if it doesn't exist
<shevy>
ElderFain what I usually do lately is: (1) write a class to solve a task (2) define its logic in a general run() method (which usually gets called from within def initialize)
<shevy>
I must write code in a way so that I never have to think about it
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<shevy>
for instance, yesterday in a game, I had a "hero" class. It has a default name for that hero
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<shevy>
I needed to change that name at runtime, so I had to use a .name = method, so I added an attr_write :name
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<shevy>
your method does two opposite things - load data, save data
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<ElderFain>
shevy: or looked at another way, it does one thing -- give you back an object from a file =)
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<shevy>
it does?
<shevy>
but you use that only in the first if branch
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<ElderFain>
the file.open block doesn't return the file?? =0
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<fuzai>
http://pastie.org/5957334 does anyone know why I can set my environment variables, install the gems needed, but then my script can't find them?
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<workmad3>
fuzai: out of curiosity... what ruby version?
<fuzai>
i'm using #!/usr/bin/env ruby to start my script
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<fuzai>
should i be setting something more then GEM_HOME and GEM_PATH?
<workmad3>
you need to require 'rubygems' in your script
<fuzai>
ohhhh
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<fuzai>
thank you
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<yakko>
hey guys, I've always been more on the Rails side, so I wanted to make some scripts that run in background and require heavy gems, but they are never going to be used in the Rails app itself. Having said that, how can I add gems Gemfile that don't get loaded on the rails server?
<yakko>
to the Gemfile*
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<workmad3>
yakko: you can also 'require: false' those gems in the Gemfile
<workmad3>
yakko: or you could create a separate Gemfile for your scripts
<workmad3>
s/also/always
<yakko>
workmad3: is this the kind of thing you use custom groups for?
<workmad3>
yakko: you could do that too
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<yakko>
workmad3: just by invoking say... ruby scripts/heavy RAILS_GROUPS=heavy_bg_stuff # will it do?
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<maleghast>
I am trying to mock an ActiveRecord object, which in my code I use like this -> ad[:cat_1] <- to access the value of a column/attribute. I am using test/unit and mocha, but nothing I try seems to work… What am I missing? Please… :-S
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<vaicine>
Is it okay to post a link to a job spec in here?
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<Raboo>
Hi
<Raboo>
I have two ruby's installed
<Raboo>
thru rpm
<Raboo>
one in /opt and one in /usr
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<Raboo>
for some strange reason when i try to execute bundle it uses the libs under /opt
<Raboo>
how does it even know that there exists a ruby under /opt?
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<Raboo>
is it because of ld.so.conf?
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<mister_zombie>
How stable is the stable ruby release?
<Paradox>
stable enough to be used by hundreds of thousands of apps
<mister_zombie>
I meant this more in a "how often will I piss my sysadmins off" way.
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<Paradox>
not often
<mister_zombie>
Is it updated often? I'm guessing they probably shouldn't mind security updates.
<Paradox>
most of the recent patch upgrades are for very minor bugs
<Paradox>
the big brouhaha about security was an issue with YAML and rails
<carloslopes>
Raboo: the ruby under /opt is the one that is on your path.. try $ which ruby to check this
<Paradox>
not with ruby itself
<mister_zombie>
I don't plan to use rails anyway, if anything I'll be building lightweight web services and for that I'll be using Sinatra
<carloslopes>
Raboo: '$ which ruby'
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<mister_zombie>
For now, it's only a tiny daemon that works with inotify to rsync stuff automagically to CDNs.
<Paradox>
mister_zombie, then it shouldnt be a problem
<Paradox>
if its small enough
<Paradox>
you can just keep it on your user account and use rbenv or rvm
<Paradox>
i run about 20 reddit bots that way
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<Paradox>
and its 4:30 am
<Paradox>
so i need le sleep
<mister_zombie>
Thing is, for some weird reason, I have to run my daemon as root. -_-
<Paradox>
goodnight
<mister_zombie>
Good night, thanks for the help
<mister_zombie>
(Here it's 6:30. Got up at the time you're getting to bed. :P)
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<fuzai>
did rand change between ruby 1.8 and ruby 1.9? my Ruby 1.9 environment has no problem with number = rand(10..20) and in my 1.8 environment i can't seem to generate a random number at all
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<Hanmac_>
yes it does
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<fuzai>
so i need something like num = rand(high-low)+low ?
<banister`sleep>
fuzai: ruby 1.8 doesnt support that
<banister`sleep>
fuzai: but srsly u shouldn't be on 1.8 at this stage (without very good reason), it's extremely old and we're really trying to move on from it
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<fuzai>
openshift uses 1.8
<carloslopes>
Raboo: hm so it's this that is causing the issue, change the path in ld.so.conf then it will execute the right binaries
<fuzai>
talk to the powers that be at red hat they default to 1.8
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<fuzai>
so 1.8 doesn't have spawn either
<fuzai>
i guess i'm gonna have to figure out how to upgrade this
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<mklappstuhl>
JonnieCache: fun thing. I completely misunderstood .try
<mklappstuhl>
JonnieCache: try is meant to be called on vars that could be nil.
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<fuzai>
someone showed me a nifty trick the other day and i seem to have lost my notes. if i have table = [ { "a" => "apple", "b" => "boy"},{},{},{}] and I wanted to test the whole array to see if any of the hashes "a" records matched "apple" how would i do that?
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<banister`sleep>
fuzai: table.any? { |h| h["apple"] == "a" }
<fuzai>
so if i have table = [ { "a" => "apple", "b" => "boy"}, { "a" => "android", "b" => "battery" }] how do i return the contents of b when a == "apple" ?
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<fuzai>
thank you i'm going to digest that for a moment
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<fuzai>
whats the || {} mean?
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<Hanmac_>
it protects the line from crashing when find does not find anything7
<Xeago>
if the lefthand operator is falsy empty hash
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<fuzai>
ok cool
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<fuzai>
thank you for all your help :)
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<fuzai>
Error: undefined method `shift' for nil:NilClass. if function = msg.scan(/^~~(\d)/).shift.shift If I try to wrap this with an else i get the fore mentioned error. The code works fine if i pass it the correct information, but bombs if I don't. Is there something i can wrap this in or a better way to do this so my if then else works better?
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<shevy>
for yaml files
<shevy>
would you rather store them in:
<shevy>
yml/
<shevy>
or
<shevy>
yaml/
<shevy>
directory ?
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<hoelzro>
yaml
<Spooner_>
shevy, data/ or config/ ;) Their format is not their purpose.
<shevy>
fuzai you must ensure that .shift is not used on a nil object before
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<shevy>
Spooner_ hmm config/ would not be applicable, data/ perhaps but that is soooo unspecific
<fuzai>
is that possible to do all on the same line or do i need to break this up?
<shevy>
registry/ would fit properly here :D
<Spooner_>
fuzai, If you only want one result then match not scan.
<fuzai>
ok
<fuzai>
:)
<shevy>
fuzai with a regex, keep in mind that your regex could find nothing
<Hanmac_>
shevy it depends, yml normaly, and yaml on leap years
<shevy>
lol
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<shevy>
I can not trust Hanmac_
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<Spooner_>
fuzai msg.match(/^~~(\d)/)[1] will match or be nil.
<shevy>
I will trust hoelzro
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<Hanmac_>
Spooner i dont know if he can use match, he wants the last of the results if there are many ...
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<s1n4>
hey, I have a bunch of keys like this: "def keys do c = gets; case c ..." how can I write a method to set another key in a 'when' statement?
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<fuzai>
i just want the first
<Spooner_>
Hanmac, No, shift.shift implies that the very first match is the only one.
<fuzai>
it's only got one line of text to dig though
<hoelzro>
s1n4: sorry, what exactly do you mean?
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<Spooner_>
Hanmac, fuzai And I'm dumb because that will nil out on a fail too.
<s1n4>
hoelzro: wait, I'll leave an url
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<hoelzro>
ok
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<Spooner_>
fuzai, result = ((matches = msg.match(/^~~(\d)/)) && matches[1])
<fuzai>
so if i did something like function = msg.match(/^~~(\d)/)[1]; if function.nil? else
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<Spooner_>
fuzai, No, because the #[] would fail if there wasn't a match.
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<fuzai>
ok
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<fuzai>
if function = ((matches = msg.match(/^~~(\d)/)) && matches[1]) else
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<fubhy>
Hey, warning: I am a complete ruby dummy. However, I was trying to configure a Guardfile with multiple watches() but all with the same callback: http://pastebin.com/R5Ae5aKj - Is that possible somehow?
<hoelzro>
does anyone know if one can call pause(3) using an existing Ruby library?
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<fuzai>
if ((function = msg.match(/^~~(\d)/)) && matches[1]) else
<Hanmac_>
fuzai & Spooner_: then use the "other" #[] : msg[/^~~(\d)/,1]
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<hoelzro>
the only way I can ever figure out how to use it is consulting SO
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* lupine
uses it fairly extensively
<lupine>
if you can use something else, do so :)
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<s1n4>
hoelzro: exactly, thank you so much
<hoelzro>
np
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<beaky>
hello
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<beaky>
what is the difference between a message pass and a method invocation?
<hoelzro>
hi
<workmad3>
beaky: the mental model involved
<chiel>
what's the best option for reloading apps on refresh (in browser)? before i was using pow on os x, but i'm trying to shift my work to a remote server
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<beaky>
ah
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<hoelzro>
groovy is probably in #groovy
<hoelzro>
;)
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<SPYGAME>
i have 2 arrays and i want to make sure both have same and equal number of values regardless of the order of values, i tried to use == but it requires both array values to be in the same order
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<fuzai>
array1.each do |element| puts "fail" if !array2.include? element end ?
<Spooner_>
SPYGAME, You could sort them both before comparing.
<Spooner_>
workmad3, That doesn't work for all possible values. E.g. [1, 1, 2] and [1, 2, 2] would be equal.
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<Spooner_>
SPYGAME, a.sort == b.sort
<workmad3>
Spooner_: hmm, good point
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<Spooner_>
workmad3, But we don't know the parameters, so hard to tell if that level of paranoia is needed.
<workmad3>
Spooner_: I'd be tempted to do a.sort_by(:object_id) == b.sort_by(:object_id)
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<workmad3>
Spooner_: so you can be assured of it working even if the array contains mixed items, not all of which implement <=>
<Spooner_>
workmad3, Nope. For strings, for example, object_id doesn't have to be in alphabetical order.
<workmad3>
Spooner_: you don't care about alphabetical order though, you care about the same order
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<Spooner_>
workmad3, Yes, but that isn't assured either.
<workmad3>
Spooner_: well, depends what sort of equality you want
<workmad3>
Spooner_: but yes, if two items would be equal, but have different object_ids
<workmad3>
Spooner_: then that wouldn't work...
<workmad3>
hmm, difficult...
<Spooner_>
If they are the same objects, certainly, but if they don't implement == then I wouldn't worry about them being equivalent in the first place.
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<workmad3>
I guess what you'd do for a full check is to duplicate both arrays, and then for each item in ary1 you would attempt to find and remove a single item from ary2
<Spitfire>
Spooner_, well... highline appears to be able to do what I want via the agree method.
<workmad3>
if at the end of it ary1 and ary2 are both empty - equal
<Spitfire>
But I can't get it to work for the life of me. Even ask doesn't work: "undefined method `ask' for HighLine:Class (NoMethodError)"
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<SPYGAME>
workmad3, which one is fast and efficient ?
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<Spooner_>
Spitfire, It is Highline#ask, not Highline.ask.
<SPYGAME>
wokmad3, sorting and comparing or the other one
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<Spitfire>
Spooner_, eeeh... how should I put that in the code, then?
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<Spooner_>
Spitfire, You know, it is an object. high = Highline.new; high.ask "do you know any Ruby?"
<fuzai>
so I have to run a "source" command with my shell to get to ruby 1.9.x. However when I spawn a process from a ruby script it seems to revert back to the default ruby 1.8.7. Is there an easy way to fix this?
<Spitfire>
Ah right, of course. Cheers.
<workmad3>
SPYGAME: neither is particularly great... sorting and comparing would be 2 sorts (probably O(n*log(n) ) and a walk through comparison O(n)
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<workmad3>
SPYGAME: the other one would be n include checks, so probably O(n!)
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<workmad3>
actually, not sure about that one
<workmad3>
n^2 maybe
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<Spitfire>
Arrgh. Highline suffers from the same problem I was having with STDIN.getc it seems.
<Spitfire>
Still requires two keystrokes before it does anything.
<csmrfx>
Whats Highline
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<Spooner_>
Spitfire, io/console $stdin.getch seems to work for me, but I'm on Linux at the mo.
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<Spitfire>
I tried that too.
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<Spitfire>
gem install io-console crashed.
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<Spooner_>
Spitfire, It isn't a gem. Standard library.
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<Spitfire>
Spooner_, hm.
<Spitfire>
undefined method `getch' for #<IO:0xb74f957c> (NoMethodError)
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<breakingthings>
Spitfire: did you require 'io/console'?
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<Spitfire>
Yep, when I try that I get no such file to load -- io/console (LoadError)
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<breakingthings>
…
<breakingthings>
yo shit broke as hell.
<Spooner_>
Spitfire, You need to be using Ruby 1.9
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<Spitfire>
That would probably explain it.
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<RurouniJones>
Is there a way to set the description of an RSpec rake task? something like RSpec::Core::RakeTask.new(:warning) do |t| ; t.desc = "Run tests with warnings enabled" ; end ?
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<Spitfire>
Ugh.
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<Spitfire>
I seem to be fully of problems today.
<Spitfire>
I've done apt-get install ruby1.9
<Spitfire>
ruby -v still returns the version as 1.8.7, and update-alternatives --config ruby doesn't list an alternatives.
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<Spooner_>
Spitfire, Use rbenv or rvm to manage Ruby versions. apt-get doesn't like having more than one version.
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<Spitfire>
Neither of those commands are found
<Spitfire>
(I'm on debian btw)
<Spooner_>
They aren't built-in commands, but systems for managing Ruby installations. Google them.
<breakingthings>
chruby is another
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<shevy>
Spitfire debian is quite primitive after all those years it still does not allow appdirs
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<Spitfire>
God.
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<Spitfire>
This is all mind boggling. lol.
* Spitfire
contemplates just pressing enter instead.
<shevy>
no, it is simple. you need to remember that at /usr/bin/ruby, in the FHS can exist only one ruby version
<Spooner_>
You should be using Ruby 1.9 anyway. 1.8.7 is pretty much just for legacy stuff now.
<shevy>
so debian worksaround this limitation with ruby1.8 or ruby1.9, respectively uses /etc/alternative as a weak-man replacement
<Spooner_>
beaky, Ruby supports a lot of functional stuff, but it isn't optimal. We have lamdas and stuff like map/reduce, so you can go a fair way.
<wicked_shell>
shevy: i just want to filter it first and puts the filtered list instead of the hashtable
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<csmrfx>
all about Your definition of 'functional'
<csmrfx>
you cant avoid 'side effects' in ruby
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<wicked_shell>
is there a method for excluding matching keys from a hashtable?
<csmrfx>
during insertion? or when
<wicked_shell>
after insertion
<wicked_shell>
like printing only the non matching
<csmrfx>
and are you *really* talking about a hash-table?
<wicked_shell>
yeah
<wicked_shell>
i could also use a array tho
<shevy>
wicked_shell pls use a pastie with syntax highlighting :(
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<wicked_shell>
sorry ^^
<csmrfx>
wicked_shell: ri Hash.has_key? enough for your situation?
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<wicked_shell>
oh
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<wicked_shell>
i knew there would be something this easy -,-
<wicked_shell>
thx
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<shevy>
yeah that is the nice thing about ruby
<shevy>
for years and years you use something
<shevy>
then suddenly someone shows you a much shorter and more efficient way to do it
<wicked_shell>
im a noob, just finished the codeacademy courses on ruby ^^
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<wicked_shell>
syntax looked nice for pseudocode at first, but once i learned some of it i figured actuall code wouldn't differ much from pseudocode in ruby :D
<Hanmac_>
wicked_shell: you could also look at Hash.values_at
<Uranio>
would be posible, "rescue" ANY kind exception with the rescue setense?
<Uranio>
?
<wicked_shell>
you mean like a global rescue?
<Uranio>
yep
<wicked_shell>
for all exceptions?
<Uranio>
yeeeep...
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<Uranio>
begin; foo(param); rescue :ALL; puts ':-P'; end
<csmrfx>
Why
<csmrfx>
Probably no way to do that
<Hanmac_>
Uranio: yes, rescue without does rescue all from StandardExceptions, with is okay, "rescue Exception" doees rescue really everything wich is not okay and should not wanted
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<Spooner_>
Uranio, rescue rescues all StandardExceptions already.
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<Uranio>
good to hear it...
<Uranio>
thanks
<csmrfx>
hnnnh
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<JonnieCache>
whys it not ok
<JonnieCache>
im not disagreeing id just like to know the specific reason
<JonnieCache>
because non standarderror exceptions indicate something is badly wrong, that you cant/shouldnt rescue from?
<JonnieCache>
not exactly accepted. but yeah basically you should ignore me :)
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<Hanmac_>
i dont trust this light photons ... they are "changelings" imo
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<JonnieCache>
wut
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<beaky>
llmkllklmklmlkmlkmklmklmlkklm
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<beaky>
oops wrong channel
<workmad3>
'is light a wave or a particle?' 'which one makes sense for your maths?'
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<JonnieCache>
i was under the impression that they are actually waves, that QFT is the "reality" and the particles are just mathematical objects
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<MEAT_CHICKEN>
Hi, running the benchmark tool here
<workmad3>
JonnieCache: if they were waves, how could we observe particle behaviour from them?
<MEAT_CHICKEN>
the results are formatted weird.
<MEAT_CHICKEN>
Any idea on how to solve?
<workmad3>
JonnieCache: in physical experiments
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<JonnieCache>
the same reason we observe wave behaviour when we look at the sea, even though its just water molecules
<JonnieCache>
its an illusion of scale
<jondon>
Blocks return values don't they? How do I return a value before the final statement in a block. I can't use return because that returns from the method, not the block.
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<JonnieCache>
but yeah im not a physicist. im just parroting what i heard Sean Carrol really
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<JonnieCache>
*heard from
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<workmad3>
JonnieCache: then how do we observe wave behaviour in a *single* particle? (again actual, physical experiments)
<JonnieCache>
qft is weird? thats the best i can do
<JonnieCache>
all i know is i watched a lecture where carroll said that modern physics agrees that waves are the reality and particle-like effects are only the product of experimental effects
<JonnieCache>
oops circular defintition there, but im sure you get what i mean
<workmad3>
:)
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<workmad3>
JonnieCache: ah, QFT actually treats particles as fields
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<jondon>
Is anyone able to answer my block return question? I can't figure it out from googling
<shevy>
jondon what was the question
<shevy>
jondon blocks always go to the method
<shevy>
if you want to "intercept" it, use yield, then do something with that
<shevy>
hmm I think there is a way to turn a block into a proper object...
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<workmad3>
jondon: structure your block so that the return value you want is the result of the last expression (typically done with an if statement)
<JonnieCache>
workmad3: the way ive always heard it explained is that particles how we as macro-objects encounter energetic disturbances propagating through fields
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<JonnieCache>
once there is enough energy in the wave, a particle "pops into existance" from our point of view
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<JonnieCache>
but really its just an energetic wave
<shevy>
JonnieCache you often sound like a mad prophet!
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<shevy>
meta-macro-objects
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<shevy>
lambda-meta-macro-objects
<JonnieCache>
modern physics often has that effect
<shevy>
lambda-meta-macro-objects propagating through eletrocmagnetc fields in hyperspace
<Hanmac_>
jonnieCache: thats the funny point about the void ... if its empty enouth ghosty particles appear and disappear before the laws of physics can react :D
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<shevy>
JonnieCache I know, one friend is a physicist, the parties he had were famous :D
<workmad3>
JonnieCache: yeah, QFT is beyond my ken really :)
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<JonnieCache>
tbh its just a safe cheap alternative to LSD for me really
<JonnieCache>
i investigate it when i feel like having my mind blown but i dont pretend to understand it
<shevy>
lol
<workmad3>
JonnieCache: heh :) you could also try nutmeg for that ;)
<Hanmac_>
i have an another article where they turned this "virtual particle" into real ones with a wavelength-mirror ... :P ... but i dont have this article currently there
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<speakingcode-wor>
good ole lysergic
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<shevy>
hehehe
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<JonnieCache>
virtual particles is supposedly also how black holes leak information
<speakingcode-wor>
this is where #ruby gets derailed for the next oh i dunno, 8-12 hours
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<JonnieCache>
sorry
<speakingcode-wor>
haha no no, i don't mind. i was just stating it humorously
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<shevy>
hey ok let's turn this on topic
<shevy>
anyone ever coded ruby while under the influence of LSD?
<shevy>
*coded in
<speakingcode-wor>
i learned ruby under the influence
<speakingcode-wor>
or well i 'll say, started learning. codecademy. learning never stops
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<JonnieCache>
lupine: at last, someone else here is panicing
<lupine>
I'm not panicking
<JonnieCache>
alright not panicing but noticing
<lupine>
:)
<JonnieCache>
i tabbed to this shell hoping for absolute irc anarchy
<JonnieCache>
if anything its calmer than normal
<lupine>
tl;dr: if you installed any gems this week, you might have executed arbitrary code
<JonnieCache>
lupine: whats new
<lupine>
(but almost certainly not)
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<fuzai>
is there a way i can capture the stdout out of a running script from within a running script? i'd like to grab the output from my eventmachine debug lines and pipe them to a websocket
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<speakingcode-wor>
use pipes?
<JonnieCache>
$stdout is an IO object
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<fuzai>
hmmm
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<beaky>
what is ruby's most powerful feature?
<JonnieCache>
blocks
<beaky>
ah
<deed02392>
it's shiny
<tobiasvl>
beaky: meta-programming done easy
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<tobiasvl>
IMHO
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<beaky>
yeah I don't know of any other language (besides smalltalk and maybe LISP) where I can do that kind of thing
<JonnieCache>
blocks are a simple feature compared to the fancy functional/meta stuff but they provide so much power for such a simple thing
<Mon_Ouie>
Funny how most people avoid blocks whenever possible
<beaky>
but isn't metaprogramming a 'with responsibility comes power' ?
<JonnieCache>
Mon_Ouie: do they?
<beaky>
aren't block everywhere in ruby on rails?
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<Mon_Ouie>
&:something and the search for similar shortcuts
<tobiasvl>
beaky: yes, sure it is.
<tobiasvl>
beaky: some people don't like monkey patching
<JonnieCache>
Mon_Ouie: thats just annoyance at the absense of a scala style _ implicit variable
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<JonnieCache>
im shocked thats not in ruby2 tbh
<beaky>
btw, does ruby have something like pypy to speed up code?
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<beaky>
all my ruby applications take ages to 'kick in' and do something
<speakingcode-wor>
theres jruby
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<speakingcode-wor>
dunno how it performs tho but i imagine its a litle bit faster maybe? shrug
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<beaky>
ah :(
<JonnieCache>
rubinius is the equivalent of pypy
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<JonnieCache>
jruby is very fast to run, very slow to start
<JonnieCache>
beaky: are all your ruby apps rails apps by any chance?
<David_Miller>
Is there a way to get a numeric id of an object?
<JonnieCache>
rails is very slow to start regardless of how you run it
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<Mon_Ouie>
David_Miller: object_id. Why do you care about that?
<beaky>
JonnieCache: yes
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<beaky>
is rails known for being dog slow? ^^
<JonnieCache>
yeah pretty much aha
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<Mon_Ouie>
Other rubies rarely (if ever) beat YARV for start up time
<JonnieCache>
but it is fast to develop in, and developer time is a lot more expensive than servers
<beaky>
ah was hoping it would be at least as fast as PHP :(
<Xeago>
beaky: zend optimizers are slow
<JonnieCache>
its not "dog slow" but it isnt fast at all
<David_Miller>
Mon_Ouie: just looking for a "random" value that perisists with the instance to seed a hash with
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<David_Miller>
thanks
<David_Miller>
that works
<beaky>
but yes developer time is a priority so I would pick rails over the franekstein php
<Mon_Ouie>
Any reason not to just use the default hash function then? (Object#hash)
<Xeago>
beaky: rails is a framework, php is a language
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<Xeago>
it is like comparing melons to hot sexy girls
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<speakingcode-wor>
beaky not sure what you're working on but you might find sinatra more suitable if it's not huge and complex
<beaky>
yeah, rails is to php as ruby is to zend's mvc framework
<Xeago>
beaky: no
<speakingcode-wor>
i think it would be, rails is to ruby what zend is to php
<Mon_Ouie>
If you're working on something huge and complex, you're doing it wrong already :p
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<beaky>
ah I'll check out sinatra tehn
<speakingcode-wor>
but i don't know much about zend other than it's a big monolithic framework so that may not even be accurate
<David_Miller>
Mon_Ouie: yeah I will use #hash, thanks
<Xeago>
speakingcode-wor: zend is more than a framework
<Xeago>
zend is also a bytecode optimizer
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<speakingcode-wor>
sinatra is simple. routing, templating.. thats about the gist of it, btu it's flexible n powerful with that simplicity. similar to express for node, flask for python or i dunno, Slim for php
<beaky>
I hope ruby becomes lightning fast someday, like what happened to javascript :D
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<Xeago>
beaky: javascript still is not lightning fast, comparisons to c lack GC's
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<beaky>
ah
<speakingcode-wor>
what is the fastest of the modern popular dynamic/interperted langs? python?
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<Xeago>
difficult to say
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<Xeago>
c-sharp can run line by line
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<speakingcode-wor>
c sharp isn't dynamic tho, no?
<Xeago>
it can operate fully dynamic
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<speakingcode-wor>
o
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<JonnieCache>
you should learn rails first then sinatra
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<JonnieCache>
and you should take the lessons that rails teaches you about rigid design, and apply them to sinatra's less insane environment
<David_Miller>
as long as you don't touch the 3rd one
<David_Miller>
you are good
<JonnieCache>
speakingcode-wor: it doesnt matter which language is "faster" because your app will be IO bound anyway
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<JonnieCache>
you could do it in fortran, it will still run at the speed of your disk and your network
<speakingcode-wor>
JonnieCache: yeah it's not a debate i have much concern about, was just curious if there is a claimed winner
<JonnieCache>
people who understand computers know that there cant be a winner ;)
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<speakingcode-wor>
yeah that's mostly true
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<_br_>
JonnieCache: saying that you should learn rails first then sinatra is the same as saying apples are better than oranges.
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<JonnieCache>
no its more like saying walk before you run
<speakingcode-wor>
if you have two identical machines/environments, each with a different language/engine doing the same operaton on the same data in memory, one might be faster ;-)
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<phinfonet>
Good Evening
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<speakingcode-wor>
i mean i, in my limited exposure, find rails a bit too opinionated for my taste, but i never appraoched ruby unitl after already having some years of architecting under my belt in other langs, so yeah. i think JonnieCache is saying play sheet music before you compose
<_br_>
JonnieCache: Different frameworks with different approaches on the same language. Makes no sense to recommend rails over sinatra. Depends on the task. It makes more sense to thoroughly review e.g. owasp
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<speakingcode-wor>
i don't think he is recommending rails over sinatra, just recommending to look at it and learn form it before going into sinatra, which is probably good advice for someone new to structuring applications (sorry to keep speakingo n your behalf JonnieCache )
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<shevy>
I am gonna reveal a secret now
<shevy>
I hate bugs...
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<Gate>
but they love you and want to be your friend.....
<_br_>
shevy: hehe good luck... you can try Knuth's cweb ^^
<breakingthings>
shevy: I'm going to make a language that's all bugs
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<breakingthings>
anything you create will be a stroke of pure luck
<shevy>
Knuth?
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<_br_>
breakingthings: see malborge
<breakingthings>
which will make all projects written in it more valued
<shevy>
breakingthings that does not sound very useful
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<shevy>
breakingthings I was not quite kidding about bug-free language btw... some kind of OOP language that is simulated along living cells. when bugs would happen, the system would be resilient and auto-corrective
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<breakingthings>
_br_: no, not just a pain in the ass to write, just spontaneously malfunctioning code–functions that work perfectly fine in one instance, but break crazily in another
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<workmad3>
shevy: it isn't the language you need to make bug-free
<workmad3>
shevy: it's the implementation :P
<_br_>
shevy: evolutionary languages are fun.. there are plenty of papers on this topic. Doesn't really work well unfortunately :(
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<_br_>
breakingthings: self-modifying code .. sounds like some sort of virus language :D
<Mon_Ouie>
Well, languages can have "bugs" in their specification too
<breakingthings>
Sounds pretty accurate _br_
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<JonnieCache>
speakingcode-wor: you got my views pretty correct :)
<_br_>
I personally like the whitespace language. It makes typing so much more easy.
<shevy>
workmad3 hmm, I'd actually rather like to go the erlang route, just extend it
<workmad3>
Mon_Ouie: or, in the case of C, lovely 'this behaviour is undefined' section or 'this behaviour is implementation defined'
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<rismoney>
i just want to divide by 0 already, i mean wtf - lol
<Gate>
shevy: bug free programs are like lightspeed. If you have any mass whatsoever you can only get close, with each step closer taking exponentially more energy.
<fuzai>
EventMachine.popen("./neuroBot.rb", RubyCounter) how do i write data to that?
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<_br_>
Whats the hot new language these days anyway the kids play with? Io?
<JonnieCache>
go is pretty sweet
<fuzai>
Ruby for me
<Muz>
GoLang.
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<speakingcode-wor>
shevy: if i'm not mistaken i believe there is research on resilience modeled after biological immune systems
<shevy>
Gate if you would have a million monkeys for free, they might create a perfect program, and 999.999 buggy ones. you can then just discard the buggy ones
<workmad3>
_br_: PDP-11 assembler
<Gate>
go and haskell are all the rage, But I'm still with my one true love, ruby.
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<speakingcode-wor>
that may be in the context of system security and reliablity tho, not sure about language and data
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<_br_>
workmad3: haha... yeah that one is the rage
<shevy>
_br_ I think Io died years ago :(
<shevy>
and all because they used := for assignment!!!
<_br_>
shevy: what dead? noo :(((
<shevy>
yeah kinda
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<Gate>
shevy: if a program lacks intent, can it be said to work as intended?
<shevy>
it lost momentum as the years passed by
<shevy>
Gate if you have a specific goal in mind, sure!
<workmad3>
shevy: 'There's a theory that if you gave a million monkeys a million typewriters, they would eventually randomly type the complete works of shakespear. Now, thanks to the internet, we know this theory is wrong'
<speakingcode-wor>
isn't something popular based (loosely anyway) on io? i feel like i remember hearing that, but meh
<shevy>
workmad3 well you could breed the better monkeys :D
<shevy>
then you end up with the shakespeare monkey eventually
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<speakingcode-wor>
workmad3: have you googled 'complete works of shakespseare' ?? i bet its out there
<workmad3>
:)
<speakingcode-wor>
i bet someone has typed it. completely bored and randomly. not by accident, of course
<workmad3>
some people taking that a bit too literally :P
<shevy>
I watched the old "Planet of the Apes"
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<_br_>
good stuff
<shevy>
I am gonna bet on the monkeys rather than the humans in the long run
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<shevy>
speakingcode-wor well if given enough time, we'd probably even find someone so bored enough to indeed type it all randomly...
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<speakingcode-wor>
i mean
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<fuzai>
or am i supposed to catch the return of popen and do it to that
<speakingcode-wor>
how many charactersi s an average shakespear work? so there's 26^(that many chars) possible random texts of the same length, ignoring punctuation and capitlization
<fuzai>
i'm really confused on how to send data to that popen from later in event machine
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<speakingcode-wor>
lets find a shakespeare work and get a char count, and do some hard math on this
<workmad3>
speakingcode-wor: I'm sure he uses numbers too, so 36^char_count
<speakingcode-wor>
in good fanciful english numbers are usually written out tho
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<shevy>
fuzai no real clue, I never quite understood popen
<workmad3>
some are :)
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<speakingcode-wor>
but this is a bottom-line case tho
<Xeago>
speakingcode-wor: what about dates
<_br_>
speakingcode-wor: just search for "shakespeare corpus" should be out there
<workmad3>
I think ignoring punctuation is a bit bad practice too... at least include comma, apostrophe and period... so 29^char_count
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<Xeago>
but!
<Xeago>
why?
<speakingcode-wor>
he did 37 plays
<Xeago>
exclamation mark and question-mark are important too
<workmad3>
Xeago: good point, 31 :)
<Xeago>
but we are programmers right;
<workmad3>
capitalization is important too
<Xeago>
semi colon and colon require love
<speakingcode-wor>
nah cause
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<shevy>
lol
<speakingcode-wor>
if a monkey randomly types a shakespeare play with no caps
<workmad3>
"Capitalization is the difference between 'I helped my uncle Jack off a horse' and 'I helped my uncle jack off a horse' "
<speakingcode-wor>
im satisfied that the monkey randomly typed a shakespeare play
<shevy>
workmad3 what about spoken english :D
<workmad3>
shevy: you emphasise a name differently ;)
<Xeago>
unclejack
<Xeago>
instead of uncle jackoff
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<speakingcode-wor>
anyway
<shevy>
I heard the japanese require a lot of context-specific word information
<speakingcode-wor>
damnit
<speakingcode-wor>
26!!! we're doing minimum case here
<workmad3>
speakingcode-wor: minimum case is still 27, not 26
<workmad3>
speakingcode-wor: spaces :P
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<shevy>
hahaha that bash comment is epic
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<workmad3>
speakingcode-wor: and in reality, shakespear was a wordsmith... punctuation placed emphasis and meaning into his work... it's much more important in, say shakespear, than in an IRC channel :P
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<workmad3>
speakingcode-wor: a mis-placed comma can change the meaning of an entire play, if it was placed badly
<speakingcode-wor>
ok but if a monkey randomly types a shakespeare play all in lower case and without punctuation i'm still satisfied it randomly typed the play
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<workmad3>
speakingcode-wor: be satisfied all you want
<workmad3>
speakingcode-wor: it's still not the play ;)
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<workmad3>
_br_: ah, that old bs :)
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<speakingcode-wor>
so Cymbeline is ~ 150,000 chars. , about 130,000 for romeo and juliet...
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<speakingcode-wor>
so lets just say, on average, 125,000 chars per play. times 37 plays. so there's 26^(37*125000) possible permutations of letters (ignoring case) equal to the length of shakesspeares plays
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<speakingcode-wor>
thats a big number. and we have what, a million monkeys?
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<workmad3>
speakingcode-wor: 27, not 26
<workmad3>
speakingcode-wor: you have to include spaces at a minimum
<speakingcode-wor>
ok sure
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<workmad3>
>> p 27**(37 * 125000)
<eval-in>
workmad3: Output: "/tmp/execpad-e70fff3c3556/source-e70fff3c3556:1: warning: in a**b, b may be too big\nInfinity\n" (http://eval.in/7973)
<workmad3>
haha
<speakingcode-wor>
so 27^(4625000)
<workmad3>
>> p 27 ** 4625000
<eval-in>
workmad3: Output: "/tmp/execpad-6b2c3e568f92/source-6b2c3e568f92:1: warning: in a**b, b may be too big\nInfinity\n" (http://eval.in/7974)
<workmad3>
:(
<speakingcode-wor>
lmao
<speakingcode-wor>
we need a million monkeys just to do the calculation
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<samuel02>
why does creating a tempfile with different tmp path then default fail, permissions seem correct?
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<samuel02>
that question mark should have been after the first sentence
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<samuel02>
and actually, maybe behind the second one as well
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<speakingcode-wor>
so take that big number, and divide by a million. and that's how many 125,000 char permutations each monkey would have to do to 'gaurnatee' shakespeares works at minimum
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<speakingcode-wor>
assuming they never repeat each other and ignoring punctuation and capitlization. eek
<workmad3>
_br_: not as much fun as normal numbers ;)
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<workmad3>
afaik, it's still not proven that pi is normal
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<speakingcode-wor>
here's a question
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<speakingcode-wor>
if the number is bigger than the number of atoms in the observable universe... is there even a machine that can represent the number in long form?
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<_br_>
workmad3: normal numbers ... meh ... I'll take perfect ones every day ;)
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<workmad3>
_br_: normal numbers are fun though... decimal expansion of a normal number contains every number
<_br_>
:) we sound like geeks from #math ^^
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<_br_>
Sandwhich time.
<workmad3>
_br_: e^(i*tau) = 1 !!
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<workmad3>
tau > pi !!
<_br_>
couldn't agree more !
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<workmad3>
_br_: it's not just agreement, it's mathematical truth ;)
<speakingcode-wor>
math was my 2nd major, largely unutlized these days tho. i liked graph theory n combinatorics tho (hence the let's count the permutations)
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<workmad3>
_br_: have you already started planning your pi-day and tau-day celebrations for the year?
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<_br_>
workmad3: hehe... I wish .. you're having a party?
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<workmad3>
yeah, I'll invite all my socialable math friends
<_br_>
speakingcode-wor: don't let your skill go to waste.. math is fun.. to many interesting things you can do
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<workmad3>
I'm sooo alone
<_br_>
:) thats nice... wish people around me would understand tau even -.-
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<_br_>
oh. irony. aehm
<workmad3>
_br_: :P
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<_br_>
lol
<speakingcode-wor>
well i'm a software engineer so it comes in handy from time to time but i don't do much number crunching on a day to day basis
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<workmad3>
bah, I'm a software developer :P
* workmad3
has just finished reading 'Software Craftsmanship'
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<_br_>
I'm just a monkey typing random characters ^^
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<speakingcode-wor>
when i do signal processing stuff that seems to be where i use it most in my job, i guess i use 'applied graph theory' quite a bit
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<speakingcode-wor>
ah
<speakingcode-wor>
i have a book, understanding unix/linux programming, pretty good
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<speakingcode-wor>
also there's a book by mark sobell (sp?) Linux: commands, editors, and shells I think is the title. i have the 2nd edition, still much relevant and useful today but a third edition came out a couple of months ago
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<speakingcode-wor>
one of the most useful books on linux i've come across. very distro agnostic, well written, thorough, just all around good
<speakingcode-wor>
do |rant| end
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<workmad3>
speakingcode-wor: taoup is nice, as it covers the ethos underlying unix as much as anything else
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<Xeago>
can anyone help me
<Xeago>
how heavy is steel relative to titanium
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<speakingcode-wor>
how dense?
<Xeago>
no idea, stainless steel
<speakingcode-wor>
steel varies
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<speakingcode-wor>
steel is iron + carbon
<speakingcode-wor>
depends on the grade of steel
<Xeago>
between 7480-8000 I suppose, but my math looks wrong
<speakingcode-wor>
The density of steel varies based on the alloying constituents but usually ranges between 7,750 and 8,050 kg/m3 (484 and 503 lb/cu ft), or 7.75 and 8.05 g/cm3
<Xeago>
titanium is about half as heavy as steel right?
<speakingcode-wor>
-wikipedia
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<workmad3>
Xeago: wiki reckons '4.506 g·cm−3' for titanium
<Xeago>
my math was wrong by thousands
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<workmad3>
Xeago: 7480 is kg/m3, so titanium would be 4506 kg/m3
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<Xeago>
thanks, aluminum is ±2700 right?
<Xeago>
kg/m3
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<workmad3>
wiki agrees
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<speakingcode-wor>
wooops
<Xeago>
thanks
<shevy>
ok so what kind of package managers do we have in ruby
<shevy>
machomebrew... anything else?
<Xeago>
gem?
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<shevy>
hmm
<shevy>
I meant general purpose actually
<Xeago>
general purpose of what?
<Xeago>
spreading bundled code?
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<shevy>
well, machomebrew allows you to install packages via formulas, like m4 or grep or ffmpeg so forth
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<shevy>
it seems to be the only general purpose package manager written in ruby or?
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<shevy2>
whee
<shevy2>
I have 16826 .rb files ... in my ruby directory
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<shevy>
and I got disconnected...
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<aedorn>
*sigh* took off my headphones for just a few minutes to get some water, and now I can't get back to work. Let's see... what do we have going on today - Star Trek to the right, and I think some reality show to the left.
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<shevy>
pick Star Trek
<shevy>
which series is it?
<aedorn>
And someone is playing some FPS, but I can't tell what it is. I'm thinking BlackOps
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<aedorn>
oh, it's Storage Wars to my left... and Star Trek TNG
<shevy>
wtf I have gotten old
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<shevy>
Star Trek: Generations was made 1994
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<shevy>
that is almost fucking 20 years :(
<shevy>
ok watch TNG
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<aedorn>
can't.. it's behind a wall. I can only hear it. And by a wall I mean a short cube
<shevy>
lol
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<shevy>
you sound like someone in a prison man
<shevy>
it must be like how ruby hackers in china code!
<aedorn>
Cubes are like a prison
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<aedorn>
and call centers tend to be designed to keep people from seeing other people, so yeah... it really is a prison. I saw some sun a few hours ago. It was neat.
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<shevy>
oh man
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<Xeago>
how much stuff that you want to get done do you get done
<Xeago>
even if it is unproductive stuff
<Xeago>
how much non-work do you get done, aedorn?
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<aedorn>
Hmmm... with other people here I generally get 1 hour of work done for every 8 hours. With nobody here, it's 1 hour for 1 hour.
<Xeago>
wait, are you classifying work in your sentence as non-work?
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<aedorn>
Oh... no... that's both really. I'm lucky if I get to concentrate one a single task for more than 5 minutes without being interrupted with some nonsense.
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<aedorn>
one=on... see? I can't even get through a full sentence!
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<aedorn>
Then I go home and work, and my girlfriend complains that I work too much. I always tell her, "I know, but I didn't get anything done at work!"
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<aedorn>
What's the rest_client replacement? Faraday? httpclient? Hmmm
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<meuuf>
Hey folks I'm having some trouble undoing some pack/unpack operations on a number. I currently start with [123456789.0].pack("N").unpack("g") and get the result I want. It turns it into a 32bit unsigned bigendian array and then back to a big endian float. Anyone able to see how I can go from the result back to the first value?
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<meuuf>
oh nevermind, the very act of typing out my question made me realise what the problem was
<meuuf>
:)
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<fuzai>
So it doesn't like ws.send on the receive event. How do I fix this?
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<havenn>
send
<havenn>
sry, misstell
<Mon_Ouie>
Well, that's because you didn't define a ws variable in that scope
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<Mon_Ouie>
Your RubyCounter instance needs a reference to ws
<fuzai>
so like flip lines 36 and 37
<banisterfiend>
fuzai: do you have a book on ruby? you need to learn about scope
<fuzai>
and then end it with something like RubyCounter(ws) ?
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<fuzai>
i don't i understand scope from perl and pascal
<banisterfiend>
fuzai: buy a ruby book :) it'll clear that stuff up for you in no time at all, but you'll need to read the chapter on scope (or whatever they call it)
<fuzai>
i'd need money for that
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<fuzai>
:(
<shevy>
cr3 you can get a type via .class as in :foo.class
<dawkirst>
banisterfiend, in what context would I use that though? do I call it on the method?
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<banisterfiend>
dawkirst: i think you need to gist some code, i'm not 100% sure what you're asking
<banisterfiend>
gist.github.com
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<shock_one>
dawkirst, more generally you shouldn't ask what it is, you should ask what it respond_to?
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<dawkirst>
banisterfiend, ok so I'm trying to wrap my head around something fundamental, but let's use https://github.com/codingjester/tumblr_client/blob/master/lib/tumblr/post.rb as an example. I want to call tumbler_object.photo, so how can I see what parameters the photo method takes, and of what class they are?
<banisterfiend>
dawkirst: oh, you can't find that out
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<banisterfiend>
dawkirst: class is usually irrelevant in a dynamically typed language like ruby, all that matters is the object responds to the methods that are sent to it
<banisterfiend>
dawkirst: method parameter do not have type information attached to them
<banisterfiend>
just names :)
<dawkirst>
banisterfiend, ok, so how would I know what to pass it at all?
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<reactormonk>
ass
<banisterfiend>
dawkirst: because the documentation tells you
<reactormonk>
hals#%bete139
<dawkirst>
ok, so that is what shock_one meant :)
<reactormonk>
htop
<banisterfiend>
reactormonk: what's wrong?
<banisterfiend>
you seem broken
<shock_one>
dawkirst, If you use 3rd party lib without docs, the only way is to read the source code
<havenn>
i <3 htop
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<havenn>
All those green and red bars, Christmas!
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<dawkirst>
shock_one, that was what I wanted to ask next. That is a big hurdle of course. I'm trying to learn Ruby, so I don't understand half the source code I read.
<shock_one>
htop
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<shock_one>
what is htop?
<havenn>
shock_one: The command-line tool. :P
<banisterfiend>
dawkirst: what languages do you know already?
<dawkirst>
so last question for the night: take https://github.com/codingjester/tumblr_client/ again as an example. Is there any *additional* documentation other than that on GitHub? ri, rdoc (I've never used either)
<dawkirst>
shock_one, so I've heard.
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<havenn>
dawkirst: If a gem has tests/specs that is a good place to look (that one doesn't). Using Pry to poke around the gem is a nice way to get up to speed!
<dawkirst>
havenn, thanks, never heard of Pry, will check it out
<dawkirst>
thanks
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<havenn>
dawkirst: Fantastic for exploring code! :D
<reactormonk>
banisterfiend, and now I had to change my password... seriously. WTF did that write my input to the console as well as X.
<havenn>
dawkirst: alias irb="pry"
<dawkirst>
havenn, that looks brilliant. Does it hook into central doc repositories, or does it ship with its own?
<ericwood>
I have mine the other way around
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<havenn>
dawkirst: banisterfiend is the one to ask! But for getting started I'd recommend: gem install pry pry-doc jist
<havenn>
dawkirst: If you want to look at the C implementation of a method, you can do something like: ? Array#pop
<dawkirst>
havenn, awesome, thanks.
<havenn>
dawkirst: Type `help` in pry for a good list of pry commands.
<banisterfiend>
dawkirst: most docs (except wikis) ship with the gem's source itself
<banisterfiend>
dawkirst: so pry just grabs docs/source directly from the gem
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<dawkirst>
banisterfiend, ok
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<banisterfiend>
dawkirst: one advantage in an interpreted language, the source code hangs around :)
<aedornm>
so how many people have come across developers that can't write Ruby without using Rails?
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<ericwood>
none, really
<havenn>
aedornm: That sounds like jsut "can't write Ruby"
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<ericwood>
every once and a while I'll realize something I was using was just a nice thing activesupport provided, if that counts :P
<shock_one>
aedornm, I've seen Java person who can't reverse a string without apache library
<banisterfiend>
aedornm: i've met experienced rails programmers who are pretty bad at ruby
<banisterfiend>
but obviously none who dont know ruby at all
<dawkirst>
banisterfiend, indeed :)
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<aedornm>
Well, what I mean is .. I just got asked how to get something to display if there aren't any view files (followed by no controllers, models, and app config)
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<banisterfiend>
aedornm: a lot of horrible cargo-culted code, where they use 'include' and included() hook instead of extend, for example
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<dawkirst>
havenn, thanks again for the recommended gems, they're going to make learning easier
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<OliverJAsh>
apologies for asking a n00b question, i never write any ruby but i've got to deal with this small script very quickly.
<dawkirst>
anyway, I'm out for tonight
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<aedornm>
The whole conversation was pretty interesting. He built a rails app, it looked okay. It wasn't fancy or anything. So I ask for a simple script to wrap around ARPing which started with "rails new .."
<OliverJAsh>
i have a string containing "Hello World" (each word on a new line) and another string containing "Hello". I need to compare these two and return the different. So in this example it would return "World", but if the compared string was "World", it would return "Hello".
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<elux>
what do you guys recommend for an http library? im looking for something fast, with proper timeout handling, etc. etc? net::http is fine, however I don't like that it uses Timeout (which spawns a thread to test the timeout for each connection its opening)
<shock_one>
OliverJAsh, you need what is called «longest common substring»
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<RubyPanther>
elux: I spider millions of pages a day with Net::HTTP I've never noticed any sort of bottleneck in Timeout
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<OliverJAsh>
shock_one: hmm okay…
<elux>
RubyPanther: i do as well..
<banisterfiend>
Mon_Ouie: the matching parentheses highlight in coolline is awesome :))
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<elux>
but still.. im crazy about performance.. and the Timeout code does what it does.. which seems unnecessary to me.. doing Socket.new, with IO.select should be able to work just fine.. i wonder the difference with some benchmarking
<banisterfiend>
it doesnt flicker like that locally
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<aedornm>
elux: Most of the other libraries wrap around it. httpclient is its own client, and Faraday can wrap a bunch of others like patron, and typhoeus. Hiroshi Nakamura did a really good comparison at Ruby Conf: http://www.youtube.com/watch?v=x6CeB75aMwc
<havenn>
OliverJAsh: Not really sure what you're expected input/output is, but: "Hello\nWorld".split.delete_if { |word| word == "Hello" }.join("\n")
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<elux>
thanks
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<havenn>
elux: What would be a better way to have preemptive timeout than a system thread?
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<OliverJAsh>
Is there a way I can test that quickly? I've created a .rb file and ran `ruby test.rb` but it doesn't return anything. sorry i'm such a n00b!
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<OliverJAsh>
havenn:
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<havenn>
OliverJAsh: I didn't put a #puts in there, so it doesn't print to terminal. Try it in irb (or better yet, Pry).
<havenn>
OliverJAsh: gem install pry; pry
<invisime>
OliverJAsh: alternately, just try using irb. :-)
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<OliverJAsh>
cheers guys!
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<OliverJAsh>
What if the input is something like: "Hello there\nGoodbye now"
<shock_one>
OliverJAsh, what do you want to output?
<OliverJAsh>
The line that does not match the string.
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<OliverJAsh>
So if I provide another string of "Hello there", it should return "Goodbye now"
<OliverJAsh>
availableOutputs is just going to output something like the examples I gave, separated by a \n
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<shock_one>
OliverJAsh, What is alfred? Is it some output prettyfier?
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<elux>
havenn: well.. since its synchronous i/o .. you could do non_blocking io, loop, and use IO.select to test the socket, which allows for a timeout value.. im pretty sure that would work
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<OliverJAsh>
alfred… it's a mac application but the module i'm requiring there is just for formatting xml i believe
<OliverJAsh>
shock_one:
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<havenn>
OliverJAsh: That seems like coincidence, I don't think the new code broke it.
<havenn>
OliverJAsh: The alfred gem is installed in your currently selected Ruby?
<havenn>
OliverJAsh: From Pry (or irb) what does this return: require 'alfred'
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<OliverJAsh>
if i change `result[:title] = result[:uid] = availableOutputs.ditch_line currentOutput ` to `result[:title] = result[:uid] = "test"` it works fine (from alfred, not from rib). i think alfred handles the require??
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<havenn>
OliverJAsh: So if you open irb and type just `require 'alfred'` it works?
<OliverJAsh>
no. "LoadError: cannot load such file -- alfred"
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<havenn>
OliverJAsh: And you've installed the gem?: gem install alfred
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<OliverJAsh>
but the require seems to work fine in the context of where i am actually running the script, not inside irb.
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<OliverJAsh>
it's not a gem, it's simply another ruby file sitting alongside this script.
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<OliverJAsh>
so in my directory i have two files: script.rb and alfred.rb
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<havenn>
OliverJAsh: Ahh, you need to add the directory to $LOAD_PATH, use `require_relative` or prefix alfred with ./, as in: require './alfred'
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<havenn>
OliverJAsh: try changing it to: require './alfred'
<OliverJAsh>
havenn: agh, i see, cheers. now here's the error we need to deal witth: "get_current.rb:9:in `<main>': undefined method `ditch_line' for "AirPlay\nBuilt-in Output\n":String (NoMethodError)"
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<danneu>
where is #ditch_line defined and is it defined on String?
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<andrewvos>
Anyone know of something that allows you to use vcr but for another language? Basically it would just take all requests and either proxy them or respond with the vcr cached version.
<andrewvos>
Cross post from ruby-lang ^
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<aedornm>
Dir['**/*.haml'] will give you an array of all your haml files, then you can just iterate over them
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<aedornm>
or you can use find -name '*.haml' -exec haml {} ... etc
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<ewilliam>
then how do u print to parent directory? i get no file/destination errors all of the time
<ewilliam>
autumn: ^
<aedornm>
and since you're using rake, and calling a system command to do your conversion, I'm not really sure which one you really want
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<ewilliam>
aedornm: ^ _-_
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<ewilliam>
lol -_-
<autumn>
ewilliam: what?
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<ewilliam>
autumn: my bad, a-tabbed too quick. was talking to aedornm
<autumn>
an E may've helped
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<ewilliam>
autumn: lol i know
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<aedornm>
ewilliam: using find?
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<workmad3>
ewilliam: I haven't used the haml plugin before... however, it works fine for me, I just put a file in my source directory with a .haml extension
<aedornm>
you technically don't, but you can use awk in combination
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<workmad3>
ewilliam: even works for a layout
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<davidcelis>
How am I supposed to sign my gems and still allow for people to point their Gemfile to the GitHub repo?
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<davidcelis>
If they don't have the private key, it'll fail to build because it can't find that file
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<ewilliam>
aedornm: how so with awk, never used that before
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<workmad3>
davidcelis: is the signing info part of the gemspec file?
<Spooner>
davidcelis, You can download from github without a key. Just can't upload.
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<ewilliam>
workmad3: thats really weird. i guess ill test the default theme, see if it works
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<davidcelis>
workmad3: Yes
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<davidcelis>
workmad3: spec.signing_key and spec.cert_chain
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<Spooner>
Ah sorry. Dumb me.
<workmad3>
davidcelis: alter your gem build process to add the signing info into the gemspec, and leave the github version without?
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<davidcelis>
I could wrap the signing in a conditional to check for that file, i guess?
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<pewter_tao>
How do you call a ruby function from a bash script?
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<havenn>
pewter_tao: ruby -e "ruby script here"
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<havenn>
pewter_tao: there are many ways, depends
<pewter_tao>
then fuction_from_script() ?
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<kyle__>
Why would irb not be able to find rexml, when I can easily locate it via find {blah}/ruby1.9 -name "rexml.rb"?
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