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<Vainoharhainen>
horseman: Have not had time to read it yet.
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<horseman>
Vainoharhainen: ok oh, when reading occurs pls msg me yet, and tell me not what you dont think about it
<greyEAX>
how do i move data from one object to another?
<Vainoharhainen>
ok
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<shevy>
greyEAX depends. have you defined a way for these objects to exchange any data yet?
<shevy>
usually it is done via methods, assigning to instance variables
<shevy>
attr_writer :foo
<shevy>
object1.foo = object2.bar
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<greyEAX>
oic
<greyEAX>
erm, well basically, i've got two objects
<greyEAX>
one that connects to an irc server
<greyEAX>
and another that makes a listen server on udp
<greyEAX>
i need to be able to take data parsed from irc, and push it through the udp server
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<greyEAX>
i guess the udp server part isnt really just a listen server lol, basically, it 'listens' for connections, then marks down who wants data sent back to them
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<amh345>
I think i've seen something like this before, but i cant recall where or what it's called. i need to pass an arg to a module, but there is a chance that arg will not be defined if a condition is not met. is there a way when passing the arg to allow it to go through if it doesnt exist?
<amh345>
i could define the variable elsewhere and pass a nill to the argument. but im pretty sure there was a cleaner way.
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* Enekoos
se despide
<Spooner>
amh345 : You mean def frog(a, b = 12) ?
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<amh345>
@var if something == somevalue var = "blah" end modulemethod(@var) is the way i know. but not nice.
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<amh345>
Spooner: so that would mean that if "b" is not defined as something else, it will pass it as 12?
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<shevy>
DEFAULT_VALUE = 10
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<shevy>
def foo(a, b = DEFAULT_VALUE)
<shevy>
b = DEFAULT_VALUE if b.nil?
<amh345>
i wonder if modulemethod(a,b,c, @var if @var.exist) would work
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<shevy>
no that will not. but you can check inside the method.
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<amh345>
ok. i see. thanks.
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<crazed>
hm, how do you do log base 2 in ruby 1.8.7?
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<Spooner>
amh345: Strictly, it will make b == 12, if b is nil or not specified.
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<jtoft>
for gem sources, does the ordering matter in terms of priority? Or how can you enforce that?
<amh345>
ok. i was trying to find a way around writing a bunch of check. i guess i could pass b= nil
<Spooner>
No, if it isn't there, it will be 12 too. You can call frog(1, 2) to specify or frog(1) or frog(1, nil) to default.
<amh345>
def foo(a, b = nil) is no good?
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<shevy>
crazed, hmm ... this one? Math.log(Math::E) # => 1.0
<Spooner>
It matters if you have multiple defaults, such as frog(a, b = 12, c = 9) and want to do frog(1, nil, 2) defaulting not all params.
<shevy>
or that one Math.log(2) # => 0.6931471805599453
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<Spooner>
amh345: def foo(a, b = nil) doesn't do anything useful :)
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<amh345>
im just trying to figure out a way around this. heh
<amh345>
if i give 'b' a default value, then in my module i need to check if it's that default. and if it is, ignore it.
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<Spooner>
amh345 : I'm not sure what you mean.
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<Spooner>
shevy : Math.log(2, 7) would be how you do it in 1.9 (that is Log2 of 7), but 1.8.7 Math only seems to support LogE and Log10 :(
<amh345>
this is a rails app. so im building some statistics. i pass some args to the module and the module inserts them into the db. but one of those args might not exist should a condition not be met.
<shevy>
hmm
<shevy>
amh345 check inside your method
<amh345>
yeah. that's what ill have to do.
<shevy>
so far you only paste the parameter list but not the content of your method. it would be easier if you show your whole code, at least the one that is specific pertaining to your problem
<shevy>
to pastie.org
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<greyEAX>
oh boy
<greyEAX>
netsplits
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<greyEAX>
so yeah, how should i handle that situation?
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<greyEAX>
with the data i mean?
<greyEAX>
i mean, i guess i could make like, a global variable or something
<greyEAX>
and have the one object write every line to it or something
<shevy>
yeah use that
<greyEAX>
oh
<greyEAX>
welp
<greyEAX>
lol
<shevy>
lol
<shevy>
the child of well and help
<greyEAX>
i really need to learn the concept of occams razor
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<greyEAX>
i always come up with solutions, but i think 'man that sounds really dumb/way too simple, i bet i'm not right about this'
<greyEAX>
then i ask somewhere, and people are like 'yeah, no, do that.'
<eam>
mischief: two factor is orthogonal to plaintext/challenge response issue
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<Paradox>
isn't that what 1.9 sample already does?
<bnagy>
try to stay with the program, Paradox
<bnagy>
10:35 < sgronblom> Was just looking for a quick n dirty way to replicate Array#sample in 1.8.6
<Paradox>
oh lol
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<mischief>
eam: so?
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<horseman>
bnagy: i would just do: array.shuffle.take(n)
<horseman>
though some babies might say that's less efficient, i think it's cute
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<Paradox>
horseman, thats a nice one liner
<Paradox>
and not sure if its less efficient…
<Paradox>
erm
<Paradox>
yeah it is
<Paradox>
nvm
<bnagy>
horseman: yours has the advantage of needing a lot less error handling
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<bnagy>
I hate my isp
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<bnagy>
I think they use a proxy - I"ma get a google bot to continually search for things like 'nepal telecom customer service center location' and 'how to hide a body' and '7.62mm ammunition'
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<horseman>
bnagy: hey
<horseman>
bnagy: do you often get food poisoning?
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<Paradox>
bnagy, could be your dns
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<bnagy>
Paradox: yeah it could be, but it's not
<Paradox>
Charter used to do all sorts of stupid dns redirections
<Paradox>
they wouldn't send 404s or whatever
<bnagy>
horseman: no, that was the second time in >2 years
<Paradox>
or DNS errors
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<Paradox>
rather they'd redirect you to their shitty bing-powered ad-ridden site
<bnagy>
Aristata: if you have highlighted someone for better or worse they'll answer when they get back
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<jamescarr>
I'll restart unity...
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<bnagy>
Aristata: btu you might have more luck in one of the rails channels eg #rubyonrails
<Aristata>
You do realize that dm-paperclip is not a person right?
<Aristata>
It's a preface
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<bnagy>
no, I didn't realise that
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<bnagy>
but regardless of whether you choose to use your own personal shorthand that employs 'prefaces' that look like nicks, a) you don't need to paste the same thing every 10 minutes and b) you might have more luck in a rails channel
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<Aristata>
I have been in the rails channel
<Aristata>
I post it when my screen fills with eople coming and going
<Aristata>
That's reasonable, and I will continue
<graspee>
Aristata: it's not reasonable. that's not the way the channel works
<horseman>
Aristata: try posting on stack overflow
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<bnagy>
it's not reasonable because a) this is not a rails channel and b) every 10 minutes is too often
<graspee>
it's not some 1990s cracks and wares channel where people spam the same messages every few minutes until someone bites. think of it as a conversation
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<Aristata>
That's news to me that datamapper doesn't work with ruby
<Aristata>
Deal with it
<graspee>
that's overly aggressive talk for a newcomer. i do not see you doing well here
<Paradox>
freeayu, you wanted to completely delete a file and make a new one?
<Aristata>
A newcomer?
<Aristata>
ha
<Aristata>
I have been in this game for 7 years
<graspee>
what game?
<Aristata>
I don't come in here often becasue it's rare I need help
<horseman>
Aristata: reposting the same qustion every 10 mins would get u banned if there was an op here
<aces1up>
array1 - array2 # Remove Any Elements from Array 1 that are contained in Array 2.(Difference)
<aces1up>
=> ["z"] how do I remove elements from array 1 that ARE NOT in array 2?
<graspee>
oh srsly
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<Aristata>
so scared
<samuelkadolph>
aces1up: array1 & array2 will give you elements only in both arrays
<offby1>
aces1up: I'd be tempted to turn them both into Sets, then do a set intersection
<Paradox>
just use an &
<aces1up>
does that modify the arrays?
<horseman>
Aristata: diaf
<Paradox>
no
<offby1>
hmm, if a is an array, then a & a eliminates duplicates
<Paradox>
array1 = array1 & array2
<graspee>
Aristata: you seem to neither know nor care what the conventions of the channel are. all you care about is selfishly getting your question answered, no matter who it pisses off. you didn't deserve what banister wrote to you but banister is banister (horseman)
<offby1>
a = a & b
<offby1>
Paradox: d'oh :)
<aces1up>
Paradox thanks.
<Paradox>
offby1, a&a delets a whole array i believe
<offby1>
just tried it -- it merely eliminates dups
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<Paradox>
ah you're right
<Paradox>
thats a useful little code snippet
<offby1>
which strongly suggests that it's just doing set intersection under the covers. I imagine the docs say so explicitly but I'm too lazy to read them :)
<aces1up>
Paradox your code seems to work for me.
<offby1>
I tell ya, "pry" is handier than reading the dcs.
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<Paradox>
yah
<Paradox>
cd Array
<Paradox>
show-doc &
<Aristata>
graspee: There was a downtime of about a hundred people coming and going with no conversation what so ever, fuck off.
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<Guest68068>
i have configured root :to => "Graphter#home" in route of my rails app
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<davidcelis>
Guest68068: #rubyonrails
<Guest68068>
but browser landing at rails index page
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<eddie_>
davidcelis: yes
<eddie_>
i am new to web
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<Hanmac>
he means that you are in the wrong channel
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<eddie_>
Oops
<eddie_>
thanks
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* Hanmac
is going to #rubywithoutrails
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<Bonkers>
what's the really simple markup gem that converts text to HTML by adding stuff like <p> around paragraphs? I can't find it now, but there's somethign much simpler than textile/redcloth
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<the-newsman>
hi all
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<the-newsman>
plz tell me the best ruby IDE . i want an editor that helps me in writing ruby programs.
<davidcelis>
sublime text 2 or vim
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<the-newsman>
r those for windows or linux ?
<the-newsman>
i need windows
<davidcelis>
i will respectfully advise against windows
<bnagy>
IDEs suck in general, ruby IDEs suck in particular
<bnagy>
just use an editor
<davidcelis>
and suggest a virtual machine running linux; if you are intent on windows, can't help you
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<the-newsman>
davidcelis, windows is sueprior in UI. the best ever ide is visual studio editor
<the-newsman>
super marverllous
<the-newsman>
all linux's sux
<davidcelis>
lol...
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<rdctnst>
linux's... linii?
<the-newsman>
lenin
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<the-newsman>
stalin
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<the-newsman>
anyway. is there Good IDE for ruby under windows ?
<davidcelis>
no
<rdctnst>
no
<billiamii>
rubymine is ok, not great.
<davidcelis>
because there are no good IDEs
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<davidcelis>
rubymine kinda blows
<rdctnst>
^+1
<davidcelis>
it's clunky and slow
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<davidcelis>
and bloated
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<rdctnst>
kinda like windows
<becomingGuru>
I am learning Ruby and know Python very well. Which is a good detailed reference?
<Hanmac>
you could use eclipse for ruby
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<davidcelis>
becomingGuru: The Well Grounded Rubyist is a good book
<the-newsman>
Hanmac i know. however i wish to use specialy made ruby editor
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<Xethron>
Heya, I know nothing about Ruby. Trying to work on a script here and add a MySQL connect. Its a class file, and I've tested my MySQL code in a normal rb file, and it works perfectly. But as soon as I add it to the class file, I don't think the method gets my "my" MySQL variable. I have found out if I put everything in the method, it does, but as this thing will run a few times a second,
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<Xethron>
its not very effective
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<Xethron>
so in the initialize method I got my = Mysql::new(my_host, my_user, my_pass, my_db)
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<Xethron>
but when I try to use it in another method, it doesnt work
<Xethron>
I tried chanigin it to $my and @my and @@my..... but yeah
<Xethron>
Not sure how to pas a a var to another method
<Xethron>
should I move it to the main class? or how do I get it public?
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<yoga>
anyone ever using twitter gems on ruby on rails?
<Hanmac>
yoda you asking in the wrong channel
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<yoga>
oh i'm sorry
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<Xethron>
meh :/
<Xethron>
no one around?
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<Xethron>
Dont know much about Ruby. Trying to add MySQL support to a class file. My MySQL code works perfectly in a standard one file script, but not in this class. I don't think the method gets my "my" MySQL variable, becayse if I put everything in the method, it works, but thats not very effective.
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<Xethron>
In the initialize method I got: my = Mysql::new(my_host, my_user, my_pass, my_db)
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<Xethron>
In my second method I got: my.query("INSERT INTO invites (`email`, `key`, `parent`) VALUES ('" + email + "','" + key + "','" + $user + "')")
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<Xethron>
I tried chanigin it to $my and @my and @@my. Not sure how to pas a var to another method. Should I move it to the main class? Or how do I get it public?
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<bigkevmcd>
Xethron: you're defining my as a local variable...you probably want it as @my = ...
<bigkevmcd>
Xethron: oh, and your SQL is insecure, look at preparing statements
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<Xethron>
bigkevmcd: I have tried @my, still doesn't work :/
<Xethron>
let me try it again.
<bigkevmcd>
Xethron: paste your code to gist.github.com
<Nitrodist>
lol banisterfiend what are you referring to?
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<banisterfiend>
Nitrodist: trying to view his source code
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<Nitrodist>
yeah, is there a specific thing you're referring to or did you just make that up
<banisterfiend>
Nitrodist: can i view yours too pls
<banisterfiend>
Nitrodist: it's pry syntax :)
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<Nitrodist>
there we go
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<rob_>
hi
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<rob_>
if you have two versions of ruby installed on a system (for example in debian precise i have 1.8 and 1.9 installed, 1.8 being /usr/bin/ruby) what is the recommended way to use the second ruby installation (in this case: 1.9) for my apps?
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<rob_>
some system packages depend on 1.8 so i can't just remove it
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<bnagy>
use rbenv
<bnagy>
or rvm if you must
<rob_>
bnagy: ok, it's not possible to do it without rbenv though?
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<bnagy>
it is
<bnagy>
but you'd just end up writing rbenv
<rob_>
ok, thanks :)
<bnagy>
you can compile from source and then link to the binaries
<banisterfiend>
bnagy: have you heard of rbfu?
<Nitrodist>
bnagy: woah, I think I have a good name for that
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<banisterfiend>
bnagy: apaprently it's even more lightweight than rbenv
<Nitrodist>
I'll call it the mvr - manager of versions of ruby
<Hanmac>
rob_ you could also change the bin/ruby with update-alternatives --config ruby
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<banisterfiend>
Hanmac: hello und :)
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<rob_>
Hanmac: i cant do that due to system packages..
<rob_>
thanks for the advice dudes
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<bnagy>
the only thing system ruby is good for on debian is.. wait nothing
<rob_>
bnagy: puppet relies on it
<rob_>
in our environment
<bnagy>
unless you use rvm then you need system ruby to bootstrap
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<Hanmac>
bnagy that is not so true ... in the next debian/ubuntu the default ruby is changed to 1.9*
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<bnagy>
yeah? It's not even installed by default on xubuntu
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<bnagy>
they'll probably use 1.9.1 or something though
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<rob_>
there isn't really a way around it being a dependency
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<Hanmac>
bnagy i said in the NEXT ... not in the current
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<bnagy>
what's more next than quantal?
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<Hanmac>
yeah in quantal ... the ruby-defaults package points now to ruby1.9
<bnagy>
which is great, but I bet they'll still fuck it up and use an old 1.9 version
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<bnagy>
I have about as much faith in ubuntu ruby packages as I have in the linux kernel dev team
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<Xethron>
bigkevmcd: Thanks, I got it working with your info :D
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<Xethron>
banisterfiend: sorry, no need to anymore :P
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<Hanmac>
bnagy currently its 1.9.3.194-1, wich is the latest ruby
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<banisterfiend>
Hanmac: hey i just bought diablo 3, wanna play against me?
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<Hanmac>
dont buy it
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<Xethron>
lol
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<shevy2>
lol
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<wubino>
What is the best flickr library?
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<apeiros_>
heftig: hm, I wonder whether github adds to nofollow meta to spoil such efforts…
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<klj613>
i got lib/room.rb and test/test_room.rb -- within test_room.rb i got --> require_relative '../lib/room' <-- i also tried using the .rb extension doesnt work
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<klj613>
nm, done
<Hanmac>
klj613 what was your error?
<klj613>
something basic. on one file i had '.vb' as couple weeks ago i had to do a .net project -.-
<klj613>
and im new to ruby... so habbit kicked in
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<klj613>
i keep getting "cannot load such file -- zlib" for trying to install gems or "gem update --system" etc
<klj613>
i installed zlib via rvm and via apt-get
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<Hanmac>
klj613 you need to install zlib and zlib-dev before you install rvm
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<klj613>
so reinstall rvm
<Hanmac>
i think thats the best way
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<apeiros_>
klj613: btw., `lsof -i:4567` if you don't want to grep
<apeiros_>
oh my, I'm writing on of those super-ugly method_missing's :-S
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<Xethron>
I'm building an IRC bot, and I want to check something 1 min after someone joins, but the script shouldn't halt. How can I set up a timer like that?
<bnagy>
about a million ways
<Xethron>
bnagy, most effective :P
<bnagy>
build it on an evented framework
* Progster
agrees with bnagy
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<Xethron>
Hmm, you don't maybe have a link to an example?
<Progster>
you can whip it up yourself, with just a regular producer/consumer queue, where the tcp stream parses input and then converts them to events that are posted on the queue. Your consumer then consumes the events and does what action is needed. You can set up a "delay" event which when the consumer inspects it, if the time hasn't elapsed yet, it just places it back on the queue
<Xethron>
oooh, ok
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<bnagy>
a Queue is definitely the easy place to start if you want to build from scratchj
<bnagy>
threadsafe
<Xethron>
Yes, I need something that isn't resource intensive
<bnagy>
then in whatever run loop you have you can just check the queue to look for work, otherwise process as usual
<bnagy>
well I don't think an IRC bot is going to tax your system
<Xethron>
bnagy, thanks :)
<bnagy>
you should still build it on an event framework or something though, it will save rewriting it in a month
<Xethron>
bnagy, shouldn't yes :P unless I do something wrong heh
<Xethron>
ok, will do
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<Progster>
unless you want to learn how to make an eventing framework
<Progster>
I think it's a good exercise to go through personally
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<Xethron>
Progster, if you have a link to a tutorial or example I can check it out
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<lewis1711>
how do I map between two files? like for each line in file b, I want to run a string transformation then write the transformed result to file b
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<JonnieCache>
im guessing line 2
<lewis1711>
ctojavautil.rb:2:in `convert': undefined method `split' for nil:NilClass (NoMethodError)
<lewis1711>
yeap
<JonnieCache>
ah well that means gsub! is returning nil
<JonnieCache>
and youre trying to call split on nil
<JonnieCache>
so you either need to tweak the regex so it doesnt return nil in that scenario
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<AxonetBE>
how to check an array is empty? Because I do @brans.empty? but this is doing a count query
<lewis1711>
ahh
<JonnieCache>
or put some conditional in so it doesnt try and call split
<lewis1711>
JonnieCache: did not occur to me about gsub doing it
<lewis1711>
thanks
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<JonnieCache>
basically when you see "no method error on nil" look for the method that wasnt found
<JonnieCache>
and work out where it is being called
<JonnieCache>
that object will then be nil, and oyu have to work out what is returning nil when it shouldnt be
<chimkan>
hi
<rob_>
hi, in ubuntu i can install ruby 1.8 and 1.9, can i use rbenv to control which one is used or do i have to install ruby under rbenv?
<JonnieCache>
the second one
<JonnieCache>
rbenv switches between its own rubies
<rob_>
so even though it can see them when i do 'rbenv alternatives', it can't actually create shims for them?
<JonnieCache>
you should probably uninstall the ubuntu ones and just rely on rbenv
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<JonnieCache>
oh can it? i might be misinformed then. its not how its supposed to work anyway
<chimkan>
I'm trying to transform a nested form in Rails into multiple image uploader, but I can't figure out how to transform the form to accept multiple upload and showing all the images
<apeiros_>
cek: I assume you want instance_exec(*args, &block)
<workmad3>
cek: you're passing in the block for define method?
<workmad3>
cek: why not do 'define_method &block' in the class?
<heisenmink>
workmad3, what is the difference? Running something on the class is context-free, static methods are context-free
<workmad3>
heisenmink: the class isn't context free
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<cek>
self.instance_exec(*args, &block) - yeah
<heisenmink>
can you run instance methods from class methods?
<workmad3>
heisenmink: the class in ruby is itself an object, an instance of the class Class
<workmad3>
heisenmink: no, but that's not the same as context-free
<heisenmink>
free of instance context of that class then
<workmad3>
heisenmink: it's a different context, the context (self) refers to the class
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<cek>
now i'm wondering why wasn't my version working, the docs are clear that self is passed properly
<apeiros_>
heisenmink: classes are instances too
<workmad3>
heisenmink: but classes are objects in ruby... you can create methods on them, assign instance variables for classes, get the class of the class, etc..
<cek>
oh wait, by block they mean locally defined block, not passed from outside
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<apeiros_>
class Foo; end; Foo.class # => Class
<phreax>
you can use the the method object to copy it into another class
<apeiros_>
they're instance of class Class
<apeiros_>
workmad3 already said the rest
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<phreax>
suppose you have Duck.quak
<workmad3>
heisenmink: which is a very different situation from a static method in something like java
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<apeiros_>
it also means that you can have instance variables in the context of class methods
<phreax>
than in you other class use define_method(:quak,&Duck.method(:quak))
<apeiros_>
nb., those ivars belong to the class
<workmad3>
class instance variables are in fact of more use than class variables :)
<apeiros_>
agreed
<apeiros_>
class variables are a sad topic in ruby :-(
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<workmad3>
I wouldn't say they're a sad topic... they are sometimes useful
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<davidw>
workmad3, yeah, I use them to store the names of all my global variables, and then eval to get at the latter
<workmad3>
however, they are easy to misunderstand in terms of behaviour and it would be nice if they were a bit harder to create and access to stop them being used when a class ivar is actually wanted
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<nullsign>
i suspect there is a negative reason for that.
<workmad3>
Dir['whatever'].each do |list|
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<apeiros_>
nullsign: Dir[] already returns an array
<apeiros_>
so you can use the [2..-1] on the result of that
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<nullsign>
Dir isn't what produces the array tho.
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<nullsign>
it's the rrdtool_out command
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<nullsign>
thats when im trying to trim.
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<nullsign>
rrd_out, typo
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<Markvilla>
Somebody's using mruby?
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<apeiros_>
nullsign: that'd have been relevant information :-p
<nullsign>
apeiros: sorry..
<apeiros_>
nullsign: you're using ruby 1.8?
<nullsign>
basically, i need to remove lines 1-2, and lastline from whatever is in the rrd_out array
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<apeiros_>
rrd_fixed.each is deprecated and won't work in 1.9 (String#each is ambiguous and was replaced by String#each_line and others)
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<apeiros_>
sub(/\A.*\n.*\n/, '') # removes the first 2 lines of a string
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<JonnieCache>
unorthodox
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<billy_ran_away>
Can anyone explain this error to me? /usr/local/rvm/gems/ruby-1.9.2-p290@maskable_attribute/gems/rake-0.9.2.2/lib/rake/ext/module.rb:36:in `const_missing': uninitialized constant MaskableAttribute::ActsAsMaskableAttribute::ActiveSupport (NameError)
<billy_ran_away>
Is the constant that's missing ActiveSupport?
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<billy_ran_away>
Cause it's in my Gemfile.lock...
<JonnieCache>
yes but its a class called activesupport within MaskableAttribute
<JonnieCache>
not the actual ActiveSupport
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<JonnieCache>
im guessing you havent required MaskableAttribute correctly
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<JonnieCache>
or maybe you need to require things in a different order
<billy_ran_away>
JonnieCache: I have require 'maskable attribute' in there...
<billy_ran_away>
JonnieCache: I have require 'maskable_attribute' in there...
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<JonnieCache>
i don't know that gem so i cant comment on specifics
<apeiros_>
JonnieCache: I'd assume it is ::ActiveSupport that is missing. but since it is invoked within MaskableAttribute::ActsAsMaskableAttribute, the error is MaskableAttribute::ActsAsMaskableAttribute:: ActiveSupport
<apeiros_>
also billy_ran_away ^
<billy_ran_away>
apeiros_: I saw : ) Thanks
<apeiros_>
so my guess is that you require 'maskable_attribute' before AS is loaded
<billy_ran_away>
apeiros_: awww...
<apeiros_>
and that maskable_attribute doesn't properly require its dependencies.
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<billy_ran_away>
apeiros_: that could possibly make sense...
<apeiros_>
(probably because it assumes to be required in a rails context, where AS is loaded anyway)
<billy_ran_away>
apeiros_: Do you know where I should put it in my test/dummy Rails app?
<apeiros_>
no
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<JonnieCache>
you need to specifically require activesupport in your gem
<JonnieCache>
or is it require 'activesupport' i can never remember
<apeiros_>
JonnieCache: no wonder, they're inconsistent
<billy_ran_away>
JonnieCache: Okay, but will that affect my gem when I'm using it in a real Rails2 project with Gemfile and everything...
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<JonnieCache>
billy_ran_away: any given file can only be required once
<JonnieCache>
so it wont matter
<JonnieCache>
thats how its meant to work. look at any rails gem, they'll all be explicitly requiring the bits of rails they need
<JonnieCache>
they should be anyway
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<shevy>
wheeeee and another new hd-install
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<billy_ran_away>
So now my name error has moved...
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<shevy>
now I am using konversation, not xchat. and I am confused...
<shevy>
hi billy_ran_away !!!
<billy_ran_away>
shevy: Hi
<iNerd>
join #openemu
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<shevy>
you are all in fancy colours....
<shevy>
it confuses me
<JonnieCache>
irssi ftw
<shevy>
hehe
<shevy>
man JonnieCache I remember you... but you look different too
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<billy_ran_away>
Same NameError, but different file… http://cl.ly/HN1X
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<billy_ran_away>
Now active_support/dependencies is saying uninitialized constant ActiveSupport::Concern
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<shevy>
I tell you, konversation is an annoying client... need to install xchat asap again...
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<shevy>
ok enough... need to get xchat. this is killing me...
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<robdodson>
if anyone has a moment.. I've been trying for about 2 days to make a ruby gem with a CLI. I have a git repo here: https://github.com/robdodson/zerp for some reason whenever I do rake install everything seems to install without errors but typing the command 'zerp' it says 'command not found'
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<robdodson>
any help is greatly appreciated. this is driving me crazy
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<rob_>
robdodson: add bin/ to your $PATH
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<robdodson>
rob_: like ~/bin or just bin/
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<rob_>
robdodson: well it has to be a valid path :)
<robdodson>
rob_: i've installed other gems with this same structure and never needed to do anything to my path. why would i need to now..?
<robdodson>
it does gem.files then gem.executables
<robdodson>
seems like that should work..
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<cek>
Any quick IPC pipe like library for ruby? I want minimal coding.
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<robdodson>
hmm
<robdodson>
if i do irb -I .
<robdodson>
and try their command: gem.files = `git ls-files`.split($\)
<iNerd>
sigh. this isn't exactly a ruby question, but is there any way to cleanup gems but leave dependencies if they require older versions? getting tired of hitting keep on every single entry
<robdodson>
oh oops nvm..
<llaskin>
iNerd: why bother?
<llaskin>
its not like gems take up a ton of space...
<iNerd>
there's that
<iNerd>
:p
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<JonnieCache>
iNerd: youd have to write a script using the rubygems api
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<JonnieCache>
maybe theres a config option to stop it pestering you
<iNerd>
i just wondered if there was a flag
<iNerd>
that i was somehow missing
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<Hanmac>
iNerd what package is your problem wich still depends on older gems? its pry right? :D
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<iNerd>
i can't even remember now
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<iNerd>
but lots of things want older active record etc.
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<robdodson>
omg such an idiot……………..
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<robdodson>
i didn't make the file in my bin directory executable
<lectrick>
not sure if such a channel exists already but I just started #ror-advanced FYI
<robdodson>
chmod 755
<robdodson>
dohhhhhhh
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<jeffreybaird>
Is there a way to interact with apple applications without using AppleScript? Trying to write a command line application in Ruby that can create an event in ical
<apeiros_>
jeffreybaird: OSA
<apeiros_>
there's a gem for that
<apeiros_>
it is essentially what AppleScript is built on
<jeffreybaird>
great, thanks
<apeiros_>
i.e., you can do about everything that applescript can.
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<apeiros_>
there are also cocoa bridges. or use macruby.
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<apeiros_>
but I think for simple tasks, osa is the easiest.
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<jeffreybaird>
yeah I just want simple and applescript is pretty awful
<iNerd>
it's sort of clever for what it is
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<iNerd>
i.e. somthing dating to system 7
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<cek>
@h = {box: hash_or_value} - no you just look at this
<codora>
heh. i love common lisp, but i'll have more luck getting my friends to learn ruby with me.
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<lectrick>
apeiros_: lol
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<Hanmac>
i think _lang has less trolls
<lectrick>
actually, what is the algorithm that measures the "distance" between two strings? (i.e. the number of their differences)
<apeiros_>
lectrick: levenshtein is one
<lectrick>
apeiros_: ah yeah, that's the one I've heard of before
<wubino>
how can I split a text file by blank lines?
<apeiros_>
there are others, too. a generic distance algorithm is the hamming distance
<apeiros_>
also soundex
<Prx>
wubino: A blank line is 2 \n in a row
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<Sigma00>
Prx: would ^$ also match a blank line? >_>
<Prx>
Sigma00: Yes
<Sigma00>
danke, just making sure
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<lectrick>
apeiros_: is there a way to find a word in a collection that is the nearest distance to a given word without iterating through every word every time?
<lectrick>
apeiros_: Basically I'm asking, is there a way to encode the word to "blur" it so that near matches will match?
<apeiros_>
lectrick: only if you can prepare the data
<lectrick>
apeiros_: I suppose that's basically like a soundex
<JonnieCache>
lectrick: the concept youre looking for is "edit distance:
<lectrick>
JonnieCache: I know but I want to avoid having to re-compare every time
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<lectrick>
like I have a list of 1000 words and I have a new word and I want to find out if there is an existing word with a levenshtein distance of less than 2 without iterating through 1000 checks
<lectrick>
If I just used soundex they would both just resolve to the same soundex code I guess
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<JonnieCache>
well if you only need the first word with distance < 2 then best case you only need to do one check
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<JonnieCache>
worst case will always be checking every item
<JonnieCache>
unless you can make very specific assumptions about the dataset but only you can answe that
<lectrick>
JonnieCache: So the average case is still N/2
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<JonnieCache>
lectrick: only if the dataset is not biased
<lectrick>
yeah
<JonnieCache>
if we're talking complexity theory then i guess we're assuming random data so yeah
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<JonnieCache>
in practice because youre using human words in a human language there will be an optimal algorithm
<workmad3>
lectrick: the best you can do with an unsorted collection is O(N) for searching
<lectrick>
workmad3: yeah I was thinking O(N), guess I was shooting for maybe an NlogN :)
<apeiros_>
o0
<workmad3>
lectrick: you'd need to find a way to sort the collection for that
<JonnieCache>
as long as its not 2^n then youre all good
<workmad3>
:)
<lectrick>
haha
<workmad3>
JonnieCache: or N^N
<Hanmac>
o sorry it was not for you
<lectrick>
Hanmac: Yeah I was like, this looks cool and all but
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<lectrick>
;)
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<JonnieCache>
if you're concerned about anything better than 2^n then youre probably a data engineer or something and youre getting paid enough so its still all good
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<workmad3>
lectrick: if you precomputed soundex for each item in the list though, you could indeed sort the collection lexically and then you could do a binary search through it :)
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<apeiros_>
JonnieCache: I think if your average algorithm is 2^n, you suck as a programmer and should change jobs. 2^n is horrible :)
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<lectrick>
workmad3: yeah that's the fallback position, that would work, just wondering if there is something like that for levenshtein distance
<workmad3>
lectrick: you can't precompute the levenshtein distance though, iirc
<Hanmac>
wubino: there for you: if lines is a array of strings ...: lines.each_with_object([0]).map {|l,i| [l,l.empty? ? i[0] += 1 : i[0]] }.select{|(l,i)| !l.empty? }.group_by {|(l,i)| i}.map {|k,v| v.map {|(a,b)|a}}
<workmad3>
lectrick: makes it a bit more difficult...
<JonnieCache>
apeiros_: that was my point. in practice anything faster than 2^n is fine, and you should spend the time developing another feature
<apeiros_>
JonnieCache: um, no
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<lectrick>
workmad3: like, you'd precompute the position of a string in an N-dimensional "levenshtein space" and then you'd round the position in that space to maybe the X nearest grid positions and then you could compute that for a test string and then do your search
<JonnieCache>
well yeah i guess it depends hwat youre doing
<apeiros_>
JonnieCache: maybe you mean n^2, but I'd still disagree
<workmad3>
lectrick: is it worth it? :)
<lectrick>
workmad3: wow I am on fire today. go adderall
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<lectrick>
workmad3: It is if someone else could take advantage of it
<apeiros_>
lectrick: first and easiest thing is to index by length
<Hanmac>
lectrick if the list is unquie and orderless you could use Set ...
<JonnieCache>
apeiros_: i think its because im biased as a web developer, where these things dont matter so much a lot of the time
<apeiros_>
if your max distance is 2, then any string with a size ±3 is out already
<workmad3>
good point, I was wondering if some form of bucket-sort would work
<lectrick>
apeiros_: that is a good point
<apeiros_>
JonnieCache: you do realize that there's a shitload of horribly slow O's below O(2^n)?
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<apeiros_>
lectrick: also an index by count of chars could help
<lectrick>
If you create an O(2^N) monster you should just hand in your nerd card and go party with clients at baseball games.
<apeiros_>
but maybe somebody already came up with a better idea of how to index for levenshtein. or soundex.
<workmad3>
apeiros_, JonnieCache: also, big-O notation hides a massive amount of performance... going by big-O then quicksort is no better than mergesort or heapsort
<apeiros_>
(most probably even)
<JonnieCache>
apeiros_: hmmmm. ok maybe i need to revise then. i thought 2^n was the cutoff point where the algorithm is never appropriate and you should throw it away and start again, even if your n is small
<JonnieCache>
better than 2^n, you can get away with it for a small n
<apeiros_>
JonnieCache: whether an algorithm is appropriate depends entirely on the context
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<apeiros_>
there's no such thing as a generic "up to this is good and beyond just sucks - no matter the context"
<workmad3>
even 2^n is ok for n < about 5, maybe 10 depending on how expensive the operations are
<eam>
if n is small then the O() is much less important than C
<JonnieCache>
apeiros_: yeah. i meant "below this point it may or may not suck depending on n, above this point You Are Definitely Doing It Wrong"
<eam>
where C is the constant time cost unrelated to n
<workmad3>
a literal 2^n is better than 10000n for n up to about 14 :)
<lectrick>
workmad3, apeiros_ ^ interesting link.
<eam>
JonnieCache: no such boundary
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<lectrick>
nullsign: string.split.last.sub? :)
<eam>
remember, big-o only relates to algorithmic efficiency at scale
<workmad3>
eam: it isn't just the C, it's the entire rest of the performance calculation.... 10000n is still O(n) and n^2/50000000 is still O(n^2) :)
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<JonnieCache>
hmmmm i was just making a general point. i know theres not *actually* a boundry in mathematical terms
<eam>
workmad3: that's exactly what I said
<JonnieCache>
but yes i accept that my knowledge of complexity theory is rusty
<nullsign>
lectrick: hrm. i want to take a array of strings, and remove the last string.
<workmad3>
eam: those aren't constants though
<workmad3>
eam: they're scaling factors
<lectrick>
nullsign: it's unshift or pop, I always have to check
<lectrick>
nullsign: or is it shift or pop
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<eam>
workmad3: constant scaling factors
<eam>
but yes
<deryl>
my knowledge of complexity theory is purely cenceptual. so enjoying lurking during these conversations. :)
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<lectrick>
nullsign: it's pop
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<workmad3>
of course, this is all only time-complexity too... there's also always space-complexity to consider :)
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<apeiros_>
and maintenance
<JonnieCache>
they are kind of equivalent though
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<apeiros_>
and how often the algorithm is used
<JonnieCache>
time and space
<workmad3>
JonnieCache: they're not equivalent
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<TubaraoSardinha>
Hello! I am having troubles with the require method! I have a simple sinatra file and want to include a class called UserData (user_data.rb) in it, they are in the same directory, the only way I managed to include the user_data was with a load
<TubaraoSardinha>
Is there a better way?
<JonnieCache>
kind of equivalent. you can exchange one for the other. see: rainbow tables
<apeiros_>
if going from O(n^2) to O(n) means 100LoC become 100KLoC, and the thing is used like once a year, I say: wtf do I care?
<JonnieCache>
memoization etc
<workmad3>
JonnieCache: in fact you tend to find they tend to be tradeoffs... a good algorithm in time-complexity is frequently poor in space-complexity
<workmad3>
JonnieCache: that's not equivalent
<lectrick>
nullsign: string.split.tap(&:pop).join
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<eam>
JonnieCache: you can't always exchange one for the other
<apeiros_>
TubaraoSardinha: the easy and wrong solution is require_relative. the long and proper solution is managing your $LOAD_PATH properly.
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<JonnieCache>
hmmmmmm we are quibbling over terms
<lectrick>
apeiros_: hey! I like require_relative!
<workmad3>
JonnieCache: not quibbling... you're getting things wrong and we're correcting you :P
<JonnieCache>
they are equivalent to the extent that you can often use up lots of space to save time and vice versa
<lectrick>
apeiros_: It allows me to run tests directly, for one thing, without any test_helper requires inside them breaking
<workmad3>
JonnieCache: yeah... if you want to redefine what 'equivalent' means, then sure
<JonnieCache>
i forget that equivalent has a specific technical meaning thats indeed my fault
<apeiros_>
lectrick: funny, I don't have require_relative in my tests, yet they *magically* work
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<JonnieCache>
i dont have any math background at all, only CS
<workmad3>
JonnieCache: it also has a specific english meaning that you're also changing ;)
<apeiros_>
lectrick: maybe it is because I spent my 5min on thinking how to manage the $LOAD_PATH :-p
<TubaraoSardinha>
apeiros_: Sounds painful! I think I will stick with the load for now. Thanks! =)
<workmad3>
JonnieCache: I only have formal CS background too
<lectrick>
apeiros_: so you're cd'd way down into a repo and you run "ruby test/some/test.rb" and that test says "require 'test_helper'" and it magically works? That really is magic.
<apeiros_>
TubaraoSardinha: um, load and require both use $LOAD_PATH
<JonnieCache>
equivalent can mean "can be exchanged one for the other" in normal english! you cant deny that
<apeiros_>
TubaraoSardinha: but sure, whatever
<nullsign>
lectrick: hrm. that doesn't remove the last line, and removes all the \n after each string, so everything goes into a single string..
<eam>
JonnieCache: but they *can't* be exchanged, categorically
<lectrick>
apeiros_: How do you set the $LOAD_PATH for an entire repo AND have it automatically available from anywhere inside the repo?
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<TubaraoSardinha>
apeiros_: Strange thing. With a require 'user_data.rb' it doesn't work but when I use load 'user_data.rb' it works!
<workmad3>
JonnieCache: no, equivalent means 'you can put this in instead of that'... what you're searching for is the word 'interchangable'
<apeiros_>
lectrick: I say ruby some/dir/test/runner.rb
<lectrick>
nullsign: ok join("\n")
<workmad3>
JonnieCache: and that's not universally true, just a frequently observed effect :)
<apeiros_>
and test/runner.rb encapsulates the knowledge of setting up the env.
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<JonnieCache>
eam: the fact that i can create a turing complete machine with only one variable, but might take a long time to run, doesnt that imply that time and space are interchangable in some way?
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<workmad3>
JonnieCache: not in the sense you're trying to state
<eam>
JonnieCache: in particular scenarios yes, but not in the general sense
<lectrick>
apeiros_: is that a parser that does not use eval? :)
<eam>
JonnieCache: you can say they're exchangable for this, or that, but you can't generally replace one with the other
<workmad3>
JonnieCache: it's frequently true that a good time-complexity has poor space-complexity, but it isn't a universal truth and it's also not the case that you can just exchange the values
<apeiros_>
lectrick: yes
<apeiros_>
I used it initially for my toy language, then moved it on to my test framework, then used it for cucumber tests
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<apeiros_>
now that I think of it, I should probably mention that it does not use eval…
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<lectrick>
apeiros_: If I'm reading that correctly, you still can't just run "ruby test/runner.rb" from within the project root
<apeiros_>
lectrick: you're not reading it correctly then.
<lectrick>
apeiros_: because it's not requiring your test_runner which mutates the load_path
<workmad3>
hmm, does anyone have a better suggestion than nerdtree for exploring a project layout with vim?
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<lectrick>
apeiros_: crap I meant
<lectrick>
apeiros_: you can't do "ruby test/path/to/unit/test.rb"
<apeiros_>
lectrick: yes. that's what I said.
<shevy>
in his career apeiros_ must have started one thousand projects :)
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<apeiros_>
17:29 apeiros_: if course, you can still run it with plain ruby, but then you're the one who needs the knowledge and you pass it to ruby via -I
<apeiros_>
shevy: probably more :(
<apeiros_>
and :( because you shouldn't ask how many I actually finished…
<lectrick>
apeiros_: well, I can agree that using require_relative spreads around repo structure knowledge, but I love the convenience of just running a test directly
<JonnieCache>
i just scrolled up, all i said was "kind of equivalent" i dont know where this idea came from that im trying to claim you can always swap time for space in any algorithm. i never said that.
<lectrick>
apeiros_: it also allows me to run it directly in my editor
<apeiros_>
lectrick: you still can, through the runner
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<apeiros_>
ruby test/runner.rb some/file.rb
<JonnieCache>
anyway who cares
<_br_>
Hello there fellow Rubyists
<apeiros_>
JonnieCache: I do! keep on arguing!
<shevy>
die _br_
<shevy>
oops wrong channel
<shevy>
hi _br_
<_br_>
lol
<_br_>
:D
<JonnieCache>
shevy: so in another channel you have beef with some other br?
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<workmad3>
16:25 < JonnieCache> kind of equivalent. you can exchange one for the other. see: rainbow tables <--
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<JonnieCache>
yeah. rainbow tables *are* swapping time for space! you just chose to interpret that sentance in the strongest possible way because that would provide maximum scope for quibbling :)
<JonnieCache>
i meant it in a very weak way
<workmad3>
JonnieCache: :P
<shevy>
JonnieCache not only him with ALL OF YOU!
<shevy>
damn it... wrong channel
<apeiros_>
JonnieCache: so revise the statement and throw in a "sometimes"?
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<shevy>
what are rainbow tables
<shevy>
is that something for gay parades? :D
<apeiros_>
and all are happy and the unicorn dance again on the rainbow (tables)
<workmad3>
shevy: they're tables for looking up the location of unicorns
<Tasser>
shevy, wikipedia may help ;-)
<_br_>
Precalcuated hashes for passwords
<JonnieCache>
rainbow tables are what they have in gay strip clubs
<shevy>
man, wikipedia sucks. I know because I help make it suck more
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<workmad3>
_br_: stop being boring :P
<shevy>
erm... less! I meant... suck less!!!
<_br_>
hehe sorry
<apeiros_>
shevy: that's not called "helping" then…
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<workmad3>
shevy: I think you got it right the first time ;)
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<shevy>
one day I shall add a new page called RubyOS. Then shevy: "on my todo list"
<apeiros_>
now how were gay strip clubs again related to algorithmic complexity? o0
<workmad3>
shevy: and 10s later it will be flagged '[Citation needed]' ;)
<_br_>
shevy: RubyOS o.O
<JonnieCache>
raindbow tables. as in table dancers.
<workmad3>
apeiros_: it's better for your sanity to not ask...
<JonnieCache>
dancing on tables. thats what they do in strip clubs isnt it?
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<_br_>
A crazy^Wgenius mind can connect those two things :D
<workmad3>
JonnieCache: no idea, I don't tend to frequent them
<shevy>
workmad3 yeah
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<shevy>
workmad3 I'll probably have to write an epic blog article before I create that page ...
<workmad3>
JonnieCache: I certainly couldn't comment on the colour of the tables used for dancing in gay strip joints :P
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<JonnieCache>
tbh i imagine theyre black.
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<apeiros_>
being sick sucks. it took me 4 days to write what I'd normally write in a day or less :-(
<JonnieCache>
ive been looking at that soundex thingy
<apeiros_>
and it probably even has more bugs than normally…
<JonnieCache>
i cant see how it would work with peoples accents being so different
<apeiros_>
JonnieCache: it doesn't.
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<JonnieCache>
yeah thought that might be it haha
<workmad3>
basic soundex also sucks for non-english iirc
<apeiros_>
it also only works for english
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<JonnieCache>
in the UK you can go 20 miles and people have completely different vowels
<JonnieCache>
must be like that to some extent everywhere
<shevy>
young arnold schwarzenegger... that's austrian accent in english
<shevy>
yeah JonnieCache
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<workmad3>
JonnieCache: you think we need to go 20 miles? cute :)
<apeiros_>
IMO it should be possible to design a language/pronunciation independent soundex algorithm. but it'd still be quite difficult to gather all the data…
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<JonnieCache>
again with the pedantry lol. yes indeed right here you could go 5 meters and find different vowels because the people in the next office are from elsewhere
<dcope>
JonnieCache: nice name ;)
<JonnieCache>
you know what i meant :P
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<apeiros_>
(nb, independent doesn't mean it doesn't need to know which language/pronunciation you want it to use for the comparison…)
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<workmad3>
JonnieCache: actually, I was thinking that where I grew up there were communities about 5 miles away that as far as I was concerned spoke fecking gobbldeygook
<_br_>
shevy: Best movie ever Commando, violence, weird english and stupid jokes mixed with other random weird stuff. :D
<dcope>
fecking gobbldeygook he says
<shevy>
_br_ hehe
<shevy>
action movies in the 1980s were not thaaaat bad
<JonnieCache>
workmad3: youre a manc arent you? you dont need to tell me that northerners speak funny man. i know,
<_br_>
true true..
<workmad3>
JonnieCache: actually, I came from gloucestershire
<shevy>
all I know is that scots were dresses
<shevy>
*wear
<workmad3>
JonnieCache: 20 miles was as far as I needed to go to get to worsels territory :)
<workmad3>
I assure you... I sound *nothing* like that
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<shevy>
hehe
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<workmad3>
JonnieCache: but yes, I live in manc now :)
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<JonnieCache>
im from the west country. in our town most people have relatively generic southern accents, but if you went to a decent pub, or out to the villages, it was full on wurzel times
<shevy>
lol
<shevy>
wurzel
<shevy>
omg
<workmad3>
JonnieCache: you've seen Hot Fuzz, right? you know the farmer with the guns?
<JonnieCache>
vaguely
<shevy>
why do you guys use german words
<workmad3>
JonnieCache: when I worked @ a supermarket, I had people who spoke like that at times...
<shevy>
hah! hot fuzz was great
<shevy>
I understood the farmer better than the rest of the team :P
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<workmad3>
shevy: the farmer? or the police officer intermediary? :)
<JonnieCache>
I've seen the wurzels. theyre amazing.
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<shevy>
workmad3 the farmer!
<shevy>
workmad3 he was growling like I expect from someone in the UK
<workmad3>
heh
<workmad3>
yeah... we don't generally speak like that :P
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<JonnieCache>
hot fuzz was meant to be filmed in a village really near where im from... the local people turned it down because they thought it would make the village look bad lol
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<JonnieCache>
thereby confirming their appropriateness for that film
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<workmad3>
JonnieCache: :)
<elhu>
Hi! I'm having some troubles with the rack/openid middleware and setting it up with google Apps… It should be a fairly simple config.ru, but I can't get it to work. Here's the gist of my config.ru, if anyone has a minute to take a look :)
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<ekaleido>
"w" writes a new file every time, whats the flag to append to the file?
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<workmad3>
ekaleido: guess ;)
<apeiros_>
ekaleido: a
<ekaleido>
shoulda figured :)
<apeiros_>
ekaleido: also see the docs of IO and IO::open
<WhereIsMySpoon>
Hi, I have this: contents = page.read.gsub(/.*meta name="title" content=/, '').gsub(/\>.*/, '').strip which is reading a youtube page and getting the description, but it isnt working :( what am i doing wrong?
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<apeiros_>
you're using a regex to process html
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<WhereIsMySpoon>
so? it's just characters
<workmad3>
WhereIsMySpoon: html is not amenable to regex
<apeiros_>
you asked me what you do wrong, I told you.
<WhereIsMySpoon>
why
<workmad3>
WhereIsMySpoon: because HTML is not a regular language
<WhereIsMySpoon>
all it has are characters in it, nothing out of the ordinary, why would it fail
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<WhereIsMySpoon>
im not disagreeing that what you're saying is the truth
<JonnieCache>
because of the opening and closing tags, and the nesting, its impossible to parse html in regex
<WhereIsMySpoon>
im just curious
<apeiros_>
you should also note that . does not match newlines without the //m flag.
<wmoxam>
WhereIsMySpoon: you've got a problem, then you decided to use regex to solve it. Now you have two problems
<WhereIsMySpoon>
you so funny
<workmad3>
WhereIsMySpoon: because a regular expression can't handle nesting, and it gets horrendously complex if you want to allow for the fact that attributes don't have to be ordered
<WhereIsMySpoon>
wait
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<WhereIsMySpoon>
workmad3: ok then, ill try and look for a html parser or somesuch
<Tasser>
workmad3, they can handle nesting... :-)
<WhereIsMySpoon>
im sure there's thousands
<apeiros_>
nokogiri
<wmoxam>
WhereIsMySpoon: try Nokogiri
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<JonnieCache>
quite apart from anything else, regexs are a pain. whereas nokogiri almost makes xml fun
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<workmad3>
Tasser: really? write me a regex that will give me the contents of the outer div of '<div> <div> </div> <div></div></div>' ;)
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<workmad3>
Tasser: and then generalise it to arbitrary nesting ;)
<apeiros_>
Nokogiri.HTML(string).at_css('meta[name=title]')['content'] should do it
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<WhereIsMySpoon>
regexes are lovely
<Tasser>
workmad3, well, as soon as you can make references in regexp, they're not regular anymore...
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<JonnieCache>
what they do is lovely. using them is often a pain
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<workmad3>
WhereIsMySpoon: they are... but there are certain classes of problem where they are provably not adequate
<Tasser>
apeiros_, at_css? why not css? :-)
<apeiros_>
workmad3: perl actually has extensions to its regex engine that lets it process non-regular expressions too. afaik.
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<WhereIsMySpoon>
workmad3: i was talking to JonnieCache
<apeiros_>
Tasser: because at_css gives a single node (the first) instead of a node set.
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<Tasser>
apeiros_, oke
<WhereIsMySpoon>
JonnieCache: it only takes learning the syntax
<WhereIsMySpoon>
:)
<workmad3>
Tasser: oh sure... at that point you're getting into pushdown-automata, just wrapped up in 'regex' syntax :)
<JonnieCache>
yeah even then they are confusing. i guess it depends on how your mind works
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<Tasser>
workmad3, indeed
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<rhalff>
anybody uses facebook ?
<workmad3>
rhalff: no... it's a barren wasteland that is devoid of any users...
<workmad3>
oh wait, that's wishful thinking :)
<apeiros_>
rhalff: last I heard it was close to 1 billion who use FB
<JonnieCache>
i think technically, a RegEx is not the same as a Regular Expression. RegEx is the perl variant where they added loads of stuff that allows you to parse html and so on
<WhereIsMySpoon>
well you already did it
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<WhereIsMySpoon>
so i dont see why you asked
<WhereIsMySpoon>
:S
<rhalff>
dunno just irritated, that a guy like that just gets pushed away.
<workmad3>
apeiros_: can I tell this guy to foad? :)
<apeiros_>
foad?
<WhereIsMySpoon>
fck off and die
<apeiros_>
oh
<WhereIsMySpoon>
l2internet :p
<WhereIsMySpoon>
(jks)
<rhalff>
I can imagine all IRC traffic being banned later on. and nobody will ever know what irc was
<WhereIsMySpoon>
banned
<apeiros_>
workmad3: sure. but preferably in his pm.
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<workmad3>
rhalff: nah, we'll just tunnel it through tor
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<rhalff>
and linux will be removed from history also, it will just be googles creation. Before there where operation systems there was nothing, and then android was born.
<deryl>
irc will never die. especially when we learn telepathic capabilities!
<WhereIsMySpoon>
o.o
<WhereIsMySpoon>
who is this guy
<JonnieCache>
hmmm except that google is built on linux.
<workmad3>
wmoxam: when they're out to get you, paranoia is really just good sense
<deryl>
workmad3: hahaha
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<wmoxam>
workmad3: then it's not paranoia
<rhalff>
how come I have the sense I'm just in an isolated box of retarded people
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<workmad3>
rhalff: biased perceptions
<deryl>
rhalff: because your box is made of mirrors
<rhalff>
anyway, you convinced me local is the way to go, so thanks for that
<workmad3>
rhalff: people hate to think of themselves as moronic, so it colours their perceptions of those around them
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<wmoxam>
rhalff: everyone thinks that when they're 16
<wmoxam>
the golden age when one knows EVERYTHING
<JonnieCache>
and theyre indestructable. *sigh* those were the days
<rhalff>
people who are 16 don't know better, they just assume that's the way it is.
<rhalff>
unless they are intelligent, in which case they will be silenced
<wmoxam>
I totally knew everything there is to know when I was 16. I've know a little less each year since
<JonnieCache>
haha
<wmoxam>
now I'm pretty damn stupid
<deryl>
good tune! Indestructable by Disturbed
<deryl>
at least the band name is right on the money hehe
<workmad3>
wmoxam: sounds like the reason given for universities being accumulations of knowledge
<workmad3>
wmoxam: students go in thinking they know everything and come out knowing they know nothing... obviously all that knowledge is kept in the university :)
<JonnieCache>
clever
<workmad3>
JonnieCache: iirc, it's a prachettism
<deryl>
universities are called brain trusts are they not? ;)
<deryl>
probably more accurate to call them a brain drain hehe
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* rhalff
*so shut up*
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<wmoxam>
rhalff: like a European should talk about debt
<deryl>
rhalff: who cares. go pay it off. make it zero. until then the number is useless
<deryl>
wmoxam: hahahahahaha
<workmad3>
wmoxam: hey, it's not all of europe that's broke
<JonnieCache>
workmad3: have you read the discworlds where they invent the internet
<workmad3>
wmoxam: some of us are just being 'austere'
<bricker88>
How would you find all classes that have a certain method defined? Is it generally okay to have that method push into an array defined in a global variable?
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<workmad3>
JonnieCache: you mean the clacks? :)
<JonnieCache>
yeah
* deryl
chokes on his coffee
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<JonnieCache>
the bit where he describes huffman coding using flags is AMAZING
<workmad3>
:)
<wmoxam>
workmad3: it's my understanding the western europe minus Germany and the Nordic countries are pretty much fucked
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<rhalff>
yeah, anyway assange should be sentenced to death, so #ruby becomes nothing more than a filth channel.
<workmad3>
wmoxam: probably
<wmoxam>
rhalff: probably
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<workmad3>
wmoxam: but hey, at least here in the UK, we're not going to be dragged down by the euro going bust
<wmoxam>
workmad3: hehe
<workmad3>
wmoxam: just the fact that the rest of euroope will be
<JonnieCache>
workmad3: unfortunately it sucks anyway
<JonnieCache>
i must remember to move to germany before they shut the borders
<rhalff>
oh forgot, the real ruby channel is #ruby-lang
<workmad3>
rhalff: yeah, go there... see how long before you get kickbanned
<deryl>
hehe you'll last a LOT shorter in there
<workmad3>
rhalff: we'll take bets on the time ;)
* workmad3
checks if zenspider is around right now
<workmad3>
ok, I'm going to bet on 2 minutes
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<shevy2>
hehehe
<wmoxam>
rhalff: yer pathetic
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<wmoxam>
slacktivism at it's worst
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<shevy>
rhalff except, we have +100% people here, and dont require +v on the channel :P
<JonnieCache>
innit. go outside and glue yourself to something mate then you might get some respect
<codora>
hehe
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<JonnieCache>
the head of the student union when i was studying glued himself to the prime minister
<JonnieCache>
go and do that
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<JonnieCache>
that guy was such a legend
<tamaska>
sounds like fun
<shevy>
ewww
<wmoxam>
12:49 < rhalff> wmoxam, no, but 10 years from now there are no ruby questions to answer.
<wmoxam>
lololol
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<shevy>
why would anyone want to glue himself to a politican
<workmad3>
JonnieCache: student unions are hotbeds of craziness
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<JonnieCache>
to draw attention to their pressure group
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<JonnieCache>
in this case it was an environmental thing
<workmad3>
JonnieCache: the student union @ manchester got transgender toilets a bit after I graduated
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<JonnieCache>
also it enabled him to talk to the PM for some time
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<JonnieCache>
workmad3: hahaha quality
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<JonnieCache>
that kind of thing is basically what student unions are for
<wmoxam>
JonnieCache: they've been trashing Montreal for months
<workmad3>
JonnieCache: 'with urinals' and 'without urinals' rather than male and female... the newspaper even reported on it... I loved the response of the person who got the toilets in
<JonnieCache>
wmoxam: yeah saw that. pretty mad. the same thing happened in the UK, they trashed some government buildings and had a couple of riots back in 2010
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<JonnieCache>
but it didnt carry on like in canada
<workmad3>
JonnieCache: when the reporter asked 'isn't this political correctness gone mad' she said 'that phrase is disablist'
<JonnieCache>
THATS AMAZING.
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<tamaska>
lololol
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<shevy>
when I have a module called Foo
<shevy>
what would be the best way to include it, the moment when it is required?
<wmoxam>
JonnieCache: well, it's in Quebec, and students there are far more radical than in the rest of the country
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<JonnieCache>
down here someone complained because you have to mark bus tickets as Male or Female when you buy them (to stop people selling them) and someone complained because of transgener discrimination
<JonnieCache>
they didnt get listened to though
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<deryl>
JonnieCache: which carry on in canada do you refer to? the vancouver student riots, or the stanley cup riots? ;)
<shevy>
JonnieCache odd mechanism... so you can sell the ticket to other male ones, if you are male. but not to female ones???
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<JonnieCache>
shevy: i guess it stops enough selling to be worth it, with minimal complexity
<JonnieCache>
deryl: the student riots
<wmoxam>
awww
<wmoxam>
he left
<JonnieCache>
the hockey riots were HILARIOUS. canada should be so ashamed of that as a country
<shevy>
he was not man enough for #ruby
<wmoxam>
JonnieCache: that wasn't the first time
<JonnieCache>
as the rest of the world rioted for bread, votes etc, they rioted for hockey. i laughed so hard
<tamaska>
needs moar balls of steel
<deryl>
JonnieCache: and trust me, the major population is
<wmoxam>
JonnieCache: and really no worse than Soccer riots in Europe
<shevy>
depends where in europe
<wmoxam>
JonnieCache: one of which happened in Poland this week
<deryl>
wmoxam: exactly true
<shevy>
we always here of dangerous hooligans in... poland, russian and the UK!
<JonnieCache>
i dont mean ashamed of rioting at all, but simply the contrast with egypt
<shevy>
*hear
<shevy>
*russia
<JonnieCache>
that was what mademe laugh
<shevy>
god, it's too hot here...
<deryl>
isn't the poland team the one told that if their fans riot again, the TEAM will be fined?
<JonnieCache>
my friend wins £200 if ANY game in the euros is stopped because of fan unrest
<deryl>
i only heard of the fining in passing on the news.
<JonnieCache>
he only bet £10 or something.
<tamaska>
fanboiz
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<mjb2k>
any body ever use Ruby in an ESB or any type of messaging bus/cache?
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<tamaska>
hey guys, i have a question. is it possible to use eventmachine on top of zeromq?
<jtoft>
If you have a bunch of gems you've created, what's the best way to manage them + ruby gems separately? Can you setup another gem sources, and set priorities? Or what would be the suggested way?
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<Muz>
jtoft: running your own gemserver is trivial. It involves having an HTTPD sat somewhere, just place your gems into a folder named /gems, and run `gem regenerate_index -d /path/to/the/folder/containing/the/gems/folder`
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<lorn>
Hi, does anyboe use emacs with ruby-mode or enhanced-ruby-mode? I'm got a 'encoding : utf-8' error everytime i open a.rb :/
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<jtoft>
Muz: sure, but that only gets the gems you have specified, can you passthrough to ruby gems? And how do your organize priority?
<Muz>
E.g, creating a folder named /var/www/gemserver/gems, placing your .gem files into there, and then running gem generate_index -d /var/www/gemserver
<Muz>
gems takes a --source argument
<Muz>
As for priority, not sure if gems respects that natively. If you're using bundler, you can order your Gemfile to indicate priority
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<Paradox>
scumbag python: claims to be object oriented…isnt
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<tds>
is it not possible to use bare hashes with setter methods? i want to have a method foo=(arg) and pass in a bare hash
<Hanmac>
what is a "bare" hash?
<tds>
when you pass a hash to a method with braces surrounding it
<tds>
without
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<Sigma00>
you mean foo(this=>that,there=>then) ?
<tds>
yes
<tds>
except i want to do
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<tds>
foo = this=>that, there=>then
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<tds>
if the method was just foo i could do
<tds>
foo this=>that, there=>then
<Paradox>
i think you can, but not sure of how
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<bricker88>
here's a general question that doesn't really have anything to do with Ruby: Should I be populating my factories with *all* attributes for a model, or just the required ones?
<Paradox>
up to you and your dev team
<Paradox>
and also probably a better question for #rails
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<bricker88>
probably
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<Paradox>
:)
<Paradox>
(づ｡◕‿‿◕｡)づ
<lorn>
Hi, does anyboe use emacs with ruby-mode or enhanced-ruby-mode? I'm got a 'encoding : utf-8' error everytime i open a .rb file :/
<Paradox>
well there's your problem
<Paradox>
"…use emacs…"
<Paradox>
:p
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<lorn>
Paradox: :D
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<mjb2k>
bricker88: I don't believe there is an overall right answer to that, whatever fits your situation the best (as is as "future proof" as you can make it)
<shevy>
I dont know what is a factory other than that it produces things
<mjb2k>
exactly
<shevy>
sounds quite java-ready though
<shevy>
Factory.assemble :donut
<shevy>
hmm ok
<shevy>
donuts arent made in factories?
<bricker88>
mjb2k: Thanks for the input
<mjb2k>
Ruby is object oriented and could use factories just the same
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<nullsign>
all dontus are classes
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<nullsign>
donuts/
<nullsign>
sugar is the method
<Paradox>
the only time i've ever seen factories used is in rails
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<Paradox>
and even then i find that what i want usually doesn't fit the factory
<Paradox>
but still
<Paradox>
factorygirl saves a lot of time
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<mjb2k>
with Ruby classes not being "sealed" and the ability to use mixins, it seems many creation patterns get ignored
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<shevy>
well java won't be like ruby ever!
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<shevy>
do java hackers actually use scripting languages?
<wmoxam>
shevy: some do
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<mjb2k>
shevy: ?? I dont understand the question
<wmoxam>
just as some Rubyists use compiled languages
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<wmoxam>
mjb2k: he's trolling
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<mjb2k>
Java is 80% of my day job
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<wmoxam>
mjb2k: many rubyists view 'patterns' as a workaround for a language's inflexibility
* tamaska
manufactures donuts
<mjb2k>
I'm actually in the early stages of a long term plan to push out PHP in favor of Ruby and Rails
<Paradox>
honestly, i never understood why java or other languages sealed classes
<Paradox>
is it for security?
<Paradox>
if someone has access to your source
<wmoxam>
Paradox: safety scissors
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<Paradox>
they can just override your classes anyway
<Paradox>
i gtg
<tamaska>
see ya
<wmoxam>
Paradox: on large teams some member won't be reasonable
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<wmoxam>
"lets change how the '+' method works, it's a great shortcut!"
<mjb2k>
I think some patterns are just to work around a languages inflexibility, but some are just simply the tried and true best general solution to a common problem
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<wmoxam>
mjb2k: such as?
<lectrick>
TIL that \A and \Z are not the same as ^ and $ with regards to regexen
<shevy>
mjb2k well if you write java code daily, do these guys also write in scripting-languages in addition to that?
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<erichmenge>
Is there any equivalent to #respond_to? or defined? that doesn't go up the ancestor chain?
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<Mon_Ouie>
You can check if instance_methods(false) includes your method
<mjb2k>
well Java has a really broad range of applied uses, in my group specifically Java and PHP are our main 2, and of course all the typical web stuff comes along too
<erichmenge>
Mon_Ouie: Ah, of course, instance_methods, thanks.
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<shevy>
k mjb2k so that question is answered. I count php into the scripting languages family too
<wmoxam>
mjb2k: patterns are pretty language specific though
<shevy>
ruby should kill php
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<wmoxam>
shevy: why?
<jlogsdon>
php will never die, sorry
<zenom>
anyone here use rbenv and know of an automated way to install bundler via a script? I have tried rbenv shell 1.8.7-p358 && rbenv exec gem install bundler
<shevy>
wmoxam because less competition means more users
<zenom>
but using puppet it doesn't work, wondering if there is another way
<jlogsdon>
it's far to easy to get started with, and it's pretty much ubiquitous with hosts now,
<wmoxam>
shevy: why do we want more users?
<mjb2k>
on the other side of the building where their jobs are more focused on the main product (written in Java), I know Python is popular of there for infrastructure and integration type stuff
<shevy>
jlogsdon not any time soon, but look at perl5
<shevy>
wmoxam because no young blood means a language will die
<jlogsdon>
perl does not have the 'ease of use' that php has, though
<wmoxam>
shevy: I don't think Ruby has that problem :p
<jlogsdon>
ruby is getting lots of young blood?
<jlogsdon>
(like, all of it)
<shevy>
jlogsdon more than perl5 for sure, less than python though. and probably less than php, though I am not sure about that lately
<shevy>
I think the www is very appealing, so php will profit from that a lot, more than other languages
<wmoxam>
mjb2k: "Language advances kill patterns-as-recipes. Back in 1998, Peter Norvig argued that most of the original GOF patterns were invisible or simpler in Dylan or Lisp. Since then, Greg Sullivan has made the same point for Scheme. Jan Hannemann demonstrated the same for Java+AspectJ. Design patterns do not perform well as recipes. They are seasonal at best."
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<pabloh>
how can u test for a deprectaion warning?
<pabloh>
deprecation*
<shevy>
9.23% for the scripting languages only :(
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<mjb2k>
wmoxam: I certainly agree patterns are language specific, I realize that certain aspects of Ruby negate certain patterns, but I don't think the entire idea of patterns should be thrown out the window
<tamaska>
hey yall, is ruby a good prototyping language?
<shevy>
pabloh I dont think you can test for it, you only get warnings
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<shevy>
hmm
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<shevy>
or perhaps there is a "treat warnings as error" flag
<bricker88>
Sorry for asking this twice, didn't get an answer the first time: Is it a no-no to have a bunch of classes that each adds something to a global variable that is an array? For example, I want to know all classes that respond to the "administrate" method, so I thought to put "ADMINISTRATABLE.push self.name" at the top of each of those classes… is there a better way?
<shevy>
Kernel.warn
<pabloh>
shevy: i recall reading rails code that was testing for a deprecation warning...
<pabloh>
shevy: maybe i'm wrong
<shevy>
pabloh no idea, first time I heard this :)
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<shevy>
bricker88 anyway, you can add to constants if you must. I dont really know of a much better way when you want to keep data from modules, without classes
<bricker88>
shevy: anywhere
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<pabloh>
shevy: it should be possible even by monkey patching the 'warn' method
<shevy>
bricker88 but not in the code you showed hahaha :D
<bricker88>
shevy: I know I can, it's the "if you must" that concerns me
<pabloh>
pabloh: not in a nice way, but posible...
<bricker88>
shevy: eh, this is just all swirling around right now, just planning really
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<shevy>
bricker88 well, if you can use classes then this may be better. if you cant, well then you would have to use a global variable anyway. or a constant in that case, though it is a bit weird
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<shevy>
in one project I am using a $use_colours variable
<shevy>
I hate it so much that I want to remove it though
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<mjb2k>
every time I think to make a global variable, I right away re-evaluate my class structures and relationships
<mrbrdo>
is there a way I can compile ruby code inside irb and show YARV bytecode for it?
<bricker88>
shevy: I could use a constant too… Really I just need a place to store an array that anything can access, so that I can do something like ADMIN_CLASSES.each ...
<mrbrdo>
I've seen someone use VM::InstructionSequence.compile but it seems I need to require something to get access to VM?
<mjb2k>
in most cases, if you think you need a global, there is something else wrong
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<shevy>
bricker88, well then use a constant there
<bricker88>
shevy: thanks!
<shevy>
I do the same btw ;)
<shevy>
this is the first time that I like Pathname actually
<shevy>
Pathname(__FILE__).dirname.realpath.to_s
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<shevy>
whoa
<shevy>
almost as many people on #rubyonrails as are here on #ruby
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<jlogsdon>
Well, RoR "launched" ruby into the scene
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<mjb2k>
that's where I first heard of Ruby from, Rails, now I use Ruby for a handful of different uses
<mjb2k>
rails being the least, haha
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<shevy>
hmm
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<mjb2k>
anybody have any experience packaing ruby apps into a Windows executable?
<mjb2k>
or even in a Mac app?
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<jlogsdon>
mjb2k: like, a desktop app?
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<Hanmac>
mjb2k google for "ruby orca"
<Guest49415>
ocra
<mjb2k>
yes, I have a handful of ruby-GTK utility apps
<advorak>
mjb2k, hotcocoa (mac) or even macruby's xcode additions ..
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* Hanmac
used my own wx port :P
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<shevy>
mjb2k \o/ so you use ruby-gtk too
<shevy>
Hanmac, isn't wx dead
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<Hanmac>
only wxruby is dead ... wx itself is not
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<mjb2k>
shevy: yep, nothing too advanced, but I have a handful of little utilities for easy point and click automation
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<shevy>
:)
<shevy>
Hanmac, ok but that's not ruby code then? :(
<nullsign>
ruby to replaced by new language - emerald
<shevy>
nullsign if it ain't on github, it aint exist!
<nullsign>
i like that linkedin profiles link to github projects ;)
<Hanmac>
shevy i rewrote the wxruby stuff ... so you could still use ruby code to make an wx app
<shevy>
"Emerald is a window decorator for beryl."
<shevy>
Hanmac really?
<Hanmac>
jeah
<Hanmac>
but its not finish yet
<shevy>
:-)
<shevy>
like my projects!
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<mjb2k>
so would ocra wrap the gtk gem in the app, but the app would still rely on Windows to have GTK installed. right?
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<Hanmac>
yeah
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<lectrick>
Is there something like .irbrc, except for the "ruby" command itself?
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<shevy>
lectrick dont think so... though there are some ruby FLAGS
<shevy>
like $RUBYOPT
<apeiros_>
lectrick: alias ruby=ruby -rsomething
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<shevy>
hehe
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<lectrick>
apeiros_: I got it to work in a fairly clean way doing this: https://gist.github.com/2932330 Now I can require 'test_helper' from any test in my project and it works right from anywhere
<lectrick>
No test_runner required
<lectrick>
And my editor also runs it fine (sublime text 2 via command-B when the test is open)
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<apeiros_>
lectrick: :-/
<lectrick>
what's wrong?
<apeiros_>
I'll get back at you. cooking & eating…
<lectrick>
I thought that would be a slick way of making ruby aware of any project-specific paths unobtrusively. The only 'gotcha' is dependence on RVM
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<lectrick>
apeiros_: crap it's buggy if I cd out of the dir and back in.
<lectrick>
apeiros_: i fixed it but now I just don't include any existing RUBYLIB into the new RUBYLIB.
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<lectrick>
granted that this is information that should be part of the repo (without having to add the .rvmrc to it)
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<mrbrdo>
what does putiseq do in YARV VM?
<lectrick>
apeiros_: holy crap. running a ruby script with the -W option is amazing
<mrbrdo>
warning level?
<mrbrdo>
why is that amazing? :)
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<apeiros_>
lectrick: I stopped using -W the moment I started using 3rd party code.
<lectrick>
apeiros_: yeah, that's the amazing part lol
<apeiros_>
it's also the reason why i say ruby's warning system is broken.
<lectrick>
some warnings are kind of silly (using an @attribute before it's set), I wish it was configurable
<apeiros_>
it's useless the way it currently works.
<apeiros_>
using @attribute before set is not silly.
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<apeiros_>
it's a potential bug
<lectrick>
apeiros_: well, a lot of stuff does that, let's just say
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<apeiros_>
sure
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<apeiros_>
but since you can't flag where you know that @ivar might be nil…
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<mrbrdo>
does anyone remember which gem it was that you could execute C code in ruby with?
<mrbrdo>
like it compiled on the fly and executed it
<Hanmac>
"inline c" ?
<mrbrdo>
thanks
<cek>
%x{gcc a.c}
<mrbrdo>
it's rubyinline
<cek>
jelaous
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<shevy>
yeah, the warnings have become quite odd
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<shevy>
and they dont allow enough fine tuning
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<shevy>
like that ruby always warns when a variable is not used afterwards
<shevy>
x = do_something
<shevy>
it will warn if x is not used at all
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<shevy>
the problem then becomes for this:
<nullsign>
so why is strata good?
<shevy>
x,y,z = do_something
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<shevy>
when y is not used, it will warn ... but perhaps the author does not care about y, only about x and z
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<billy_ran_away>
I see a lot of methods where elements of an array used as a method argument can be either a symbol or a hash, I'm trying to do the same thing, is there a better way then this to get all the (element || element.keys.first?) http://cl.ly/HNSK
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<cek>
you need to fix the caller
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<billy_ran_away>
cek: Me?
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<jlogsdon>
billy_ran_away: i dont think there's a better way, outside of shortening it to `mask.is_a?(Hash) ? mask.keys.first : mask`
<billy_ran_away>
Yea, inline if...
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<jlogsdon>
ternary*
<billy_ran_away>
jlogsdon: Thanks for looking
<billy_ran_away>
jlogsdon: Never heard it called that...
<billy_ran_away>
ternary |ˈtərnərē| adjective composed of three parts.
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<jlogsdon>
Yup. Part 1 is condition, part 2 is TRUE result, part 3 is FALSE result
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<habib>
Hi Everyone
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<digitalcakestudi>
how would I format a number to something like 000001 from 1 ?
<eam>
sprintf
<digitalcakestudi>
where 0 fills in the empty place
<digitalcakestudi>
thanks eam
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<digitalcakestudi>
so I have it figured out to encode to a number such as sprintf("%06d", 1) being 000001 but is there a way to revers that such as sprintf("%-06d", 000001) ??
<jlogsdon>
digitalcakestudi: or String#rjust
<jlogsdon>
try just %d?
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<jlogsdon>
if that doesn't work I dont think sprintf can handle that case
<digitalcakestudi>
nice it works
<jlogsdon>
:)
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<eam>
000001 is 1 already
<digitalcakestudi>
trying to make my invoice ids look good
<digitalcakestudi>
eam yeah if its an int but what about a string?
<digitalcakestudi>
jk
<eam>
that would be "000001" :)
<eam>
and .to_i will turn it into 1
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<digitalcakestudi>
nice I will need that
<digitalcakestudi>
thanks
<digitalcakestudi>
going to be using as slugs in urls
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<habib>
what if interpreter says "couldn't load SDL"?
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<cek>
bidirectional communication over a socket, please
<cek>
blocking
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<apeiros_>
cek: is that a question?
<cek>
apeiros_, depends on your answer
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<cek>
zaychenok, хуй!
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<cek>
It seems like i can't get it working. I'm getting broken pipe, resouce unavail and all sort of errros.
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<cek>
all those examples on internets are ass sided one way implementations
<cek>
who needs one way?
<habib>
Просто интересно сколько русских на канале
<ukd1>
hi guys, I'm having some minor issues with pretty url's not working. They work fine with the inbuilt server, but don't work using apache + passenger - requests just 404 from apache. Any suggestions?
<shadoi>
So, I'm profiling a TFTP server I wrote in ruby, it's (not surprisingly) very slow for file transfers.
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<shadoi>
Anyone have and good pointers on optimizing UDP socket file transfers?
<apeiros_>
TFTP? /me googles
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<apeiros_>
shadoi: I heard EM was fast for IO…
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<apeiros_>
also, I don't know, but maybe there's something like sendfile for udp?
<heftig>
i don't think so
<heftig>
UDP is message-based, not stream-based. and connection-less, too
<apeiros_>
oh, seems sendfile works over udp too
<cek>
udp is datagram based
<apeiros_>
before 2008 only for files <64KB, though :)
<shadoi>
I have to encode each packet, so… unless I move all of that code out to C, I'm stuck using ruby's sockets.
<cek>
okay, so what about 2way comm over unix socket?
<apeiros_>
shadoi: did you profile?
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<shadoi>
yeah
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<shadoi>
48% of the time it's in UDPSocket.recvfrom
<shadoi>
in the server...
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<shadoi>
which confused me a bit
<heftig>
cek: datagram or stream?
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<apeiros_>
shadoi: recvfrom blocks, no?
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<apeiros_>
in the server, try a select loop with nonblocking IO?
<cek>
heftig, doesn't matter as long as it works. i need 2way on unix socket, blocking. thats all
<shadoi>
I used recvfrom_nonblock as well
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<apeiros_>
btw., what's the difference between recvfrom and read
<shadoi>
I'll try an eventmachine version and see how big of a difference it makes
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<shadoi>
and maybe a celluloid::io version
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<billy_ran_away>
Anyone know a good way to take a hash like { :default_formats => [], :formats => [], :format => [], :something_else => nil } and collect all the keys that include? "format" returning them as a hash, and modifying the original hash at the same time?
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<billy_ran_away>
select! I guess...
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<cek>
did you know that you can retry the begin/rescue/end block on exception?
<cek>
okay, so it looks like you can open a socket 2 times in the same process. the 2way example is at http://apidock.com/ruby/v1_9_3_125/UNIXServer/accept . you can interchange the accept_nonblock for server and client flawlessly
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<apeiros_>
I don't know cek, but do you actually *read* the stuff people write you?
<cek>
why would you need to make an echo server? internets are full of echo servers.
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* apeiros_
facepalms
<cek>
you just take any page and that's echo server right there
<cek>
even national los alamos labaratory runs an echo server
<apeiros_>
cek: dude, you asked for 2 way sockets. that's demo code for just that.
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<cek>
i'm just wasting my time with all these echo servers. I need real solutions for real people.
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<apeiros_>
but hey, it's nice how thankful you are towards heftig. I find it great that you took your time to say 'thank you'
<Sigma00>
lawl what
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* apeiros_
puts his mental ignore hat on…
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<Sigma00>
no no wait, this could get good
<apeiros_>
no, it'd end in a kick and eventually a ban. I know how those things escalate.
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<cek>
That would be a fork!
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<heftig>
so we've provided a solution for the wrong problem, it seems
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<apeiros_>
heftig: no, he doesn't articulate his problem. it's endemic with him. see his first "question".
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<shadoi>
Usually boils down to "Do my job for me!"
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<cek>
it looks like it's impossible to do that wiht unixsocket classes
<lectrick>
hey apeiros_ hope you had a delicious meal. did you already mention your opinion on https://gist.github.com/2932330 yet? (I may have missed it)
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<apeiros_>
cek: odd, heftig disproved that statement with his demo code.
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<apeiros_>
lectrick: whoops
<cek>
he's not using unixsocket /unixserver
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<apeiros_>
lectrick: I feel uneasy with putting the env setup knowledge there
<cek>
that's plain system calls there
<apeiros_>
cek: yes he does.
<apeiros_>
and yes, of course those result in system calls. like so much in programming. that's why you have a system…
<lectrick>
apeiros_: Well there's no ideal place to put it, it has to land somewhere lol. But at least this allows me to have project-specific load paths "without even thinking"
<apeiros_>
lectrick: yes, it's always a tradeoff
<apeiros_>
but with that, you rely on rvm
<lectrick>
apeiros_: Of course, when distributing a project, that knowledge is no longer there so you'd still need a test_runner that adds to the load_path
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<apeiros_>
the tradeoff with the runner.rb is that you can't just use the ruby executable. but it doesn't introduce additional dependencies.
<lectrick>
apeiros_: In my case I'm just dealing with rails apps so it works
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<lectrick>
cek: OALA
<apeiros_>
lectrick: personally I think the test framework should actually do that. baretest was designed with that in mind.
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<apeiros_>
unfortunately I'm stuck at rewriting it :(
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<lectrick>
cek: by which I meant "opinions are like assholes... everybody's got one" because I know some prefer rbenv :)
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<cek>
rvm is very unstable. they introduce bugs and change interfaces
<cek>
amateurs
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<lectrick>
yeah i've noticed lol. but our team uses it
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<lectrick>
don't get my started on how $HOME/.rvmrc is expected to be a completely different type of file than $project_dir/.rvmrc
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<lectrick>
me, not my
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<lectrick>
cek: does rbenv have gemsets?
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<cek>
no idea, never tried, but I think we'll switch to it.
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<lectrick>
I don't think it does. have to say that is a nicety of rvm even if rvm does it by making "gem" a function :O
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<workmad3>
rbenv has a plugin for gemsets iirc
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<lectrick>
ah ok.
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<lectrick>
So rbenv works by putting ruby commands ahead in your PATH via 'shims' so they grab them first.
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<lectrick>
I suppose commands like 'ruby' and 'gem' resolve to /shims/ and those are scripts that determine your current Ruby version and then set the right things and run it
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<heftig>
still the same. just with more class and less parameters
<cek>
heftig, yeah, but you're too late. the trick here is not to open 2 servers accidentally or it won't work
<apeiros_>
it's really sad that github didn't implement the commit view of the normal github service for gists.
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<cek>
that is, unixserver creates the socket, but you must not #accept it, they you connect from "remote" via unixsocket, then you accept it on server if you want to listen and there you go with 2way
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<apeiros_>
cek: where are you coming from?
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<heftig>
cek: what.
<heftig>
of course you run #accept first thing
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<digitalcakestudi>
anyone here feel like helping me out with a cancan ability issue I'm having?
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<cek>
heftig, well, i wish i could get that working with https://github.com/pbosetti/SimpleIPC . i managed to get 2way locally, but this lib is giving me all the problems.
<digitalcakestudi>
trying to can :read, Quote, user_ids.include?(user.id) where Quote habt user
<cek>
all those assumptions because #accept and order of calls was because of that lib
<cek>
it uses sockets in somewhat drastic way
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<cek>
thanks!
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<apeiros_>
wow. he… he said "thanks". that was unexpected.
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<shevy>
let's say I have a file called "foo.txt"
<shevy>
can I require that and have it run as ruby code?
<shevy>
require 'foo.txt'
<shevy>
:P
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<shevy>
eval File.read('foo.txt')
<shevy>
hmmmmmmmmm damn you eval
<hoelzro>
shevy: you should write a sandbox module using mRuby =)
<hoelzro>
I was thinking about that, but I don't have nearly enough experience with Ruby
<shevy>
I got ruby code in some .cgi pages right now
<shevy>
and now trying to turn them all out
<havenn>
shevy: load 'foo.txt'
<shevy>
wheeeee
<shevy>
that seems to work just fine
<shevy>
thanks
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<digitalcakestudi>
is it possible to use cancan to prevent a user from calling a controller? vs a resource/model?
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<digitalcakestudi>
for example I have a role :client were that use can :read Quote but I have two controllers where one is namescaped to client and that other admin. Now the client is for the clients and the admin is for the admins but a client and still call the controllers for the admin because the client can read
<digitalcakestudi>
user*
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<digitalcakestudi>
blaaa, I cant type today
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<elrond255>
can I write methods in a module and then access the method from a class within the same module? what is the syntax? are there pointers where to get that information?
<apeiros_>
elrond255: methods either must be defined on self's singleton class, self's class or any of self's class' ancestors. that's the whole rule about methods in ruby. in all other cases, you must provide an explicit receiver for the method.
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<apeiros_>
getting methods into self's singleton class can be done by a) def obj.foo; end, or b) obj.extend SomeModule
<elrond255>
so if I create a method in the module ebook called process_foo I can call it from a module class my_process as ebook.process_foo?
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<apeiros_>
the only other speciality is that a module included into a class becomes part of that class' ancestry
<apeiros_>
your module can't be called ebook. do you mean Ebook?
<apeiros_>
and yes, if you define it on Ebook's singleton class, you can call it by Ebook.process_foo
<elrond255>
yes, I forget the rules for casing of names some times
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<elrond255>
thank you
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<minijupe>
how do I access aggregate data with AR? Purchase.successful.select("sum(transactable_price) as total").on_day(Date.today-1.month).total >> undefined method `total'
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<apeiros_>
minijupe: #rubyonrails
<icy`>
hi, what's a good way of storing multiple items which have a string (like a price), and a timestamp with that price? Could have many prices and timestamps per item
<minijupe>
apeiros_: tried and failed there :(
<apeiros_>
minijupe: that doesn't make this the right channel to escalate.
<minijupe>
apeiros_: many ruby apps use active record, tho, not just rails.
<apeiros_>
minijupe: not the point and I'm not going to argue about it.
<apeiros_>
icy`: so the price and the timestamp belong together? Struct.new(:price, :timestamp), then have an array (or other collection) of these stored in your item.
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<icy`>
apeiros_, ah, i forgot about structures =) ty.
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<apeiros_>
icy`: just a cheap way to create a class. creating a "full" class is perfectly reasonable too.
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<apeiros_>
meh, I should finish that gist on cross-posting and restart kicking cross-posters.
<icy`>
apeiros_, i was originally just going to have an array of the form [price, time, price2, time2...] and then step or w/e through it
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<Tasser>
icy`, if it's semantically a struct, make it a struct ;-)
<Tasser>
apeiros_, y u no sleep? :-)
<icy`>
might be more overhead
<apeiros_>
Tasser: sickness fucks up sleep schedule.
<icy`>
if one item is holding an array of like 10 structs o.O
<apeiros_>
icy`: never be afraid to create a class
<Tasser>
icy`, so what?
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<apeiros_>
icy`: oh noes! 10 structs! omg I think the ruby interpreter will burst in flames! :-p
<icy`>
=)
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<icy`>
yes, i definitely miss ruby
<apeiros_>
start worrying about such things when they actually become a problem.
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<apeiros_>
premature optimization yadda yadda…
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<Tasser>
apeiros_, ...
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<Tasser>
the perl yadda-yadda operator
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<Tasser>
kinda equivalent to ruby raise NotImplementedError
<apeiros_>
why am I not surprised that perl has a yadda-yadda operator?