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<The_NetZ>
what do I need to have to extconf.rb/make a gem on windows?
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<jpstokes>
I'm working on a stand-alone ruby project...when I run rspec it pulls information from my dev db. How do have it pull from a test db...btw, I've also got FactoryGirl setup
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<jpstokes>
I'm working on a stand-alone ruby project...when I run rspec it pulls information from my dev db. How do have it pull from a test db...btw, I've also got FactoryGirl setup
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<shinobi_one>
jpstokes: did you tell it to pull data from your dev db?
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<noob101>
hello
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<shinobi_one>
hola
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<shevy>
it kinda sucks to google for prawn colours
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<shevy>
and get presented the colours of some crabs
<shinobi_one>
hm..
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<shinobi_one>
that?s not what i get lol
<shinobi_one>
excellent location for a question mark
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<ruby755>
Does anyone know if you can return multiple variables at once with Ruby?
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<nahkunt>
hi i want to learn ruby. i am a linux user for about 8 years, know a little bit about bash and sed and things and have sometimes edited bits of other people's C code... basically i'm a non-programmer but not clueless either.
<shinobi_one>
nahkunt: so go off and learn ruby then ;)
<nahkunt>
what resources should i use?
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<shevy>
nahkunt the irc channel here
<shevy>
nahkunt create a new file, give it an .rb end
<shevy>
inside, write: class Cat; end
<nahkunt>
well yes, but can you recommend any books or interactive thingies that sound like they fit my level?
<nahkunt>
ok :)
<shevy>
the pickaxe is ok if you want a general overview + explanation of the stdlib
<shinobi_one>
nahkunt: for interactive stuff, rubykoans is decent, rubymonk is decent
<shevy>
and the ruby koans
<shevy>
nahkunt but the best way to learn ruby is to really just dive in and start writing code, you'll pick up the things you need. You can also look at the three core classes, the most important ones
<shinobi_one>
shevy: he's not a programmer he said.
<shevy>
my friends are non programmers
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<shevy>
and windows users
<shevy>
so he uses linux for 8 years, I am sorry, he is no longer a non-programmer
<shinobi_one>
wat
<shevy>
nahkunt did you write that .rb file yet? the next line comes soon
<nahkunt>
shevy: yep
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<nahkunt>
echo "class Cat; end" > 1.rb
<nahkunt>
now what?
<shevy>
nahkunt ok, well I dont think this is your editor, but alright ;)
<shinobi_one>
lol
<shevy>
nahkunt ok you just wrote your first class in ruby \o/
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<shevy>
always remember this moment
<shinobi_one>
/kill
<nahkunt>
:D
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<shevy>
nahkunt next part is to instantiate it. add another line, cat = Cat.new
<shevy>
but please use a better editor than echoing...
<nahkunt>
ok i'm using vim
<shinobi_one>
nahkunt: step 1. don't allow shevy to be your teacher ^.^
<shevy>
shinobi_one see? "I am a non-programmer"
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<shinobi_one>
editing with vim and echoing, doesn't make you a programmer, at least i sure hope not
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<shevy>
nahkunt ok now you have a class, cat, and you instantiated a cat. Now we add one method ... between class and end, you must add a newline and the method... def meow; puts 'The cat meows.'; end
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<nahkunt>
ok it doesn't matter if i'm technically a programmer or not one, i was just trying to show my skill level so far
<shevy>
once you understand how you use methods, you have ruby covered about 70%
<shevy>
I abandoned vim when I realized it messes with my brain :(
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<shinobi_one>
it's power is too strong for some
<shinobi_one>
its*
<shevy>
yeah, needless complexity ain't a good thing
<circuit>
dont know if vim is optimal for programming
<circuit>
editing configuration files it's the best
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<shevy>
I had so many configuration settings in vim, one day I just lost all the fun tweaking them
<shevy>
since that day I understand convention > configuration
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<shinobi_one>
circuit: why would it not be optimal for programming?
<shevy>
nahkunt where are you at now
<shinobi_one>
shevy: maybe you'd prefer something like notepad, not much configuration, it's been around for a while too ;)
<shevy>
yeah, notepad is not bad
<circuit>
shinobi_one: because there are so many other editors/IDEs that are designed for programming
<shevy>
it is too minimal though
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<shinobi_one>
circuit: so because there are many other editors, vim must not be optimal
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<circuit>
shinobi_one: how *is* vim optimal?
<shevy>
there are always tradeoffs involved
<shevy>
- time to learn and master an editor vs. productivity
<circuit>
vim is powerful, but i would never use it for large programming projects
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<shinobi_one>
circuit: if you know how to use it, its shortcuts and power are wielded and make you a wizard
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<shinobi_one>
lol
<shevy>
yeah, I believed that too for some years
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<shevy>
the best editor is ultimately the human brain itself
<shinobi_one>
i would use it for every large programming project period.
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<shinobi_one>
but that's my preference, i can do things quicker in vim than any other editor (depending).
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<shevy>
how do you work with vim? do you use xterm?
<shinobi_one>
i use macvim on osx, or vim over ssh when i need to do something remotely, or gvim on linux
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<circuit>
ill stick to komodo
<shinobi_one>
vim has a large learning curve, it's not for everyone
<shinobi_one>
circuit: open source version or payed version?
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<circuit>
open source
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<shinobi_one>
not many features
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<nahkunt>
i'm no vim expert but i know my basic things and used it for years ... gg G regex dw dd p macros etc.
<shevy>
hehe
<shevy>
it has anchored itself into your brain firmly :)
<nahkunt>
people say it's too complicated but *shrug* i just don't bother with the complicated things
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<circuit>
im no vim expert either but im definitely not a rookie either
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<shinobi_one>
not many would claim to be an expert at vim, it's too powerful and so much to know
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<shinobi_one>
how do you jump to the 7th word on a line in komodo? click?
<shinobi_one>
:P
<nahkunt>
clicking is bad
<nahkunt>
waste of time, sore wrists
<circuit>
lol?
<shevy>
you have the cursor
<shinobi_one>
the almighty cursor!
<shevy>
did you guys never play tetris?
<shinobi_one>
i'm not sure how that's relevant
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<circuit>
how is jumping to the 7th word on a line?
<shevy>
i'm not sure how it is relevant to be able to do xyz in an editor
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<circuit>
unless you're in a timed competition
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<shinobi_one>
circuit: my point was, power ;)
<circuit>
that extra second wont matter
<shinobi_one>
productivity
<shevy>
I thought an editor exists so you can get things done
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<arubin>
Helping one type faster is not power.
<nahkunt>
true, it's more about the sore wrists that i'm careful about because when i was 14 i got golfer's elbow and it was very painful so i switched to colemak and tried to use the mouse less
<shinobi_one>
arubin: no, but act of doing so is powerful
<arubin>
Type or place the cursor.
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<circuit>
i dont believe you get 'sore' wrists from clicking
<benzrf>
kbd rools mouse droolz woo
<shevy>
A friend was faster with the mouse at warcraft3 than I was with the keyboard/shortcuts :(
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<shinobi_one>
benzrf: woot!
<benzrf>
B)
<benzrf>
shevy: your friend was not human
<arubin>
A powerful editor would allow you to write better code in less time, not save 1.5 minutes per day typing.
<benzrf>
shinobi_one: wanna try my new gem
<nahkunt>
circuit: believe me you do. it's not the clicking, it's constantly moving from mouse to keyboard and back
<shinobi_one>
arubin: that's cool, vim does that too
<benzrf>
arubin: sounds like SOMEBODY hasnt tried vim
<arubin>
I was only commenting on the focus of this conversation.
<arubin>
I have used vim.
<shinobi_one>
circuit: nahkunt is actually right here, constantly switching between keyboard and mouse is not ergonomic
<circuit>
nahkunt: must just be you because i have never experienced sore wrists and i use my computer a lot
<shevy>
arubin still using vim?
<arubin>
shevy: No.
<shevy>
People who use vim a lot are very fond of it, like benzrf :)
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<nahkunt>
circuit: well at the time i had a job writing transcripts so yeah
<shinobi_one>
"used" vim is differen't than using vim at a semi-experienced level
<nahkunt>
circuit: i had to listen to videos and write down everything they said
<shevy>
semi-experienced hmmm ;)
<nahkunt>
circuit: and then go to school and write tests
<shinobi_one>
circuit: you may not be experiencing that now, but get back to me in 30 years
<circuit>
shinobi_one: and you don't think you'll develop an injury by just typing?
<circuit>
you're injury prone to repetitive tasks
<circuit>
regardless of what they are
<shevy>
I did not have sore wrists, but I did have some kind of strains (strenous? when you keep a finger in awkward positions for too longer... like if you start playing piano, and the teacher tells you to hit from top to the bottom directly with just one finger) in some fingers
<shinobi_one>
circuit: with my posture i probably will, but i did build a stand up desk at work, and get a new better chair for my posture at home
<shevy>
stand up coding?!?!
<shevy>
is this like comedy talking
<shinobi_one>
actually sanding desks are all the rage..
<shinobi_one>
standing*
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<shevy>
lol
<shevy>
sand my desk too!
<shinobi_one>
they have ones with treadmills even
<shevy>
really?
<shinobi_one>
yes
<shinobi_one>
it turns out that sitting 90% of your life is actually really bad for you lol
<shevy>
yeah
<shinobi_one>
i actually found i'm more productive when standing and coding, although it does take longer, and it's much much better on my posture/back/neck/shoulders
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<shinobi_one>
it does take longer to get used to***
<nahkunt>
i work in a warehouse and have to stand all day it's really not so bad. programmers are just pasty nerds allergic to physical activity :p
<shinobi_one>
this is all coming from a guy sitting in an office (not even at his standing desk cubicle) currently sitting with bad posture and a sore neck
<nahkunt>
come to think of it though i always sit when i'm on the computer.. maybe i should stand more at home too
<circuit>
my girlfriends dad has been working at a desk for 30 years and he has back problems
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<shinobi_one>
here this will scare the shit out of you
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<shinobi_one>
well
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<shinobi_one>
failed to open /etc/fuse.conf because i'm not root, is this command supposed to touch that file?
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<benzrf>
shinobi_one: dunt matter
<benzrf>
it always does that idk why
<benzrf>
works fine anyway
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<benzrf>
shinobi_one: ok
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<benzrf>
shinobi_one: quick is a LIVE CODING THINGY
<shinobi_one>
well i pressed Ctrl+C and it says unmounting /home/whatever/folder and it seems to be stuck or something
<benzrf>
oh god dammit
<benzrf>
dont ctrl-c thats the wrong way to exit >.<
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<shinobi_one>
haha okay
<benzrf>
just pkill it and then sudo umount -l <the_dir>
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<shinobi_one>
benzrf: ok i'm back in
<benzrf>
Cooler_:
<shinobi_one>
benzrf: btw i get this when starting gems/quick-0.2.2/lib/quick/fs.rb:225:in `const_get': Use RbConfig instead of obsolete and deprecated Config.
<benzrf>
*cool
<benzrf>
yes it does that >.<
<benzrf>
the mounted dir maps to the module hierarchy
<benzrf>
if you cd in u will see that there is a dir for each child module/class of Object
<shinobi_one>
i do see that
<benzrf>
you can make a new .rb file in any dir
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<benzrf>
whenever you save it, any methods defined in it will be reloaded into the module whose dir it is
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<benzrf>
also, you can use a few handy commands to do things like open pries
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<benzrf>
try just 'quick' to get a command listing
<shinobi_one>
ah
<shinobi_one>
i cd'd to Object, and ran quick pry
<benzrf>
quick pry will open into an instance by default
<benzrf>
use -m/--module for into the actual module
<shinobi_one>
yeah it failed and terminated the pry-remote-em session i guess, although it seems to have bugged out my terminal again lol
<shinobi_one>
session i should say
<JordanJ2>
Hello, I am trying to run Terminus-Bot on a OpenShift 1.9 cartridge and keep getting this error: http://pastebin.com/jJf8BwXp
<benzrf>
whaa
<benzrf>
shinobi_one: fyi use `quick stop` to terminate it properly
<benzrf>
shinobi_one: does it just do nothing when you run quick pry
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<benzrf>
what exactly happens o.O
<shinobi_one>
benzrf: to end the `quick pry` session?
<benzrf>
no, to tend quick entirely
<benzrf>
or rather the instance you are cd'd into
<benzrf>
shinobi_one: what happened when you did quick pry?
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<benzrf>
nothing? it opened a pry but bugged out?
<shinobi_one>
well, trying to cd back into my quick directory is pretty much freezing up the session
<shinobi_one>
i'll have to manually kill it again
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<JordanJ2>
Anyone?._.
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<shinobi_one>
benzrf: from the top level directory
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<benzrf>
o.o
<benzrf>
oh wait
<benzrf>
did you start with --foreground?
<shinobi_one>
benzrf: `quick pry` produces
<shinobi_one>
[pry-remote-em] server didn't finish negotiation within 15 seconds; terminating
<shinobi_one>
[pry-remote-em] session terminated
<shinobi_one>
yes
<benzrf>
o-O
<benzrf>
whaa
<benzrf>
what else did you try to do/
<benzrf>
just cd?
<shinobi_one>
so i made the folder called "quick", cd'd and ran `quick start . --foreground` in one session, opened another and cd'd into the quick folder, ls shows all the modules
<shinobi_one>
then ran `quick pry`
<benzrf>
hmmm
<benzrf>
let me try to replicate
<benzrf>
i always ran it from outside
<shinobi_one>
o
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<shinobi_one>
yeah it fucks up my session that i ran quick pry in as well
<shinobi_one>
also every session thereafter that i try to cd into the directory
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<benzrf>
aha yep
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<benzrf>
i got the same error when mounting on .
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<benzrf>
try again from outside o.o
<shinobi_one>
you mean run the quick start command from outside?
<benzrf>
after killing quick and unmounting
<benzrf>
*umounting
<benzrf>
>.>
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<shinobi_one>
yeah it loaded up pry now
<shinobi_one>
and i get some line 5 from quick_binding thing
<shinobi_one>
method
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<shinobi_one>
just realized what time it is, i'll play around more tomorrow benzrf, gotta head home and get some grub
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<benzrf>
kk
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<whatasunnyday>
Any ideas on how I can call a different controller from a controller spec? I know this is an awful idea but I’m need to post my sessions controller for authorization purposes.
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<whatasunnyday>
mary5030: on line 18. attached_device_with_no_primary is going to return an array which will be evaluated as true. since you said unless attached_device..present? it will return true and the unless you wnt execute
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<whatasunnyday>
won't*
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<mozzarella>
whatasunnyday: that's the line: args = parent_part.split(',').map(:&strip)
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<mary5030>
whatasunnyday: thank you so what do you suggest
<mary5030>
sorry i am total nob
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<Nowaker>
mozzarella: arr.map(&:strip)
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<Nowaker>
not :&
<mozzarella>
Nowaker: well he said :&
<Nowaker>
and i do correct it
<mozzarella>
thanks man
<whatasunnyday>
mary5030: umm its hard to understand exactly what you’re doing. it just depends on what your expected behavior is
<whatasunnyday>
thanks Nowaker sorry for the typo mozzarella
<mary5030>
where it is throwing error and saying it is nill i was expecting not be nil
<whatasunnyday>
since run only runs if the statement is false
<whatasunnyday>
it prints nothing
<whatasunnyday>
so its the same as def run;end
<Nowaker>
:&blah, if it was vald, would mean a symbol of blah. &:blah means a block of blah method.
<whatasunnyday>
since every ruby has a return value and it is the last line of the method, it’ll be nil because there are no lines
<Nowaker>
s/vald/valid/
<Nilium>
Every ruby? O_o
<whatasunnyday>
every method*
<mary5030>
right but i was expecting to return the error message instead of nil
<whatasunnyday>
obv i am not paying enough attention
<mozzarella>
Nowaker: where can I learn more about that & thing?
<Nilium>
For shame.
<Nowaker>
mozzarella: google for ruby blocks
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<Nilium>
Isn't unary &expr just shorthand for expr.to_proc?
<Nowaker>
this is number one concept in ruby i'd say
<Nowaker>
need some sleep, bye
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<bricker`LA>
I know this isn't the #chef channel, but it's dead and I'm desperate: Has anybody used chef hosted and setup the serverdensity cookbook? I just don't think I'm doing it right - the config file isn't being written properly. I'll explain more if anybody is interested in helping.
<mozzarella>
Nilium: Symbol#to_proc is called, then?
<Nilium>
mozzarella: Yes.
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<mozzarella>
and what does it do?
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<Nilium>
I believe it just returns a proc similar to -> (obj) { obj.send(sym) }
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<Nilium>
Would have to check your Ruby implementation-of-choice's source for exactly how it's implemented.
<mozzarella>
ok
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<zcreative>
Anybody have any recommendations for video hosting and streaming services?
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<mrgoodcat>
besides youtube?
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<snardbafu1ator>
what does this compile error mean?
<snardbafu1ator>
it won't let me copy, so here is the screenshot
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<mrgoodcat>
this guy was in #python too
<mrgoodcat>
don't click on that
<mrgoodcat>
emo porn
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<thrillagorilla>
Pretty clever guy.
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<mrgoodcat>
who links a compile error as a jpg?
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<mrgoodcat>
and ruby doesn't even compile...
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<zcreative>
mrgoodcat yeah besides youtube. Currently, i'm looking into was
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<zcreative>
mrgoodcat yeah besides youtube. Currently, i'm looking into AWS S3, Streamio, and custom using ffmpeg
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<mrgoodcat>
oh. what are the goals? specifically what makes youtube a bad choice?
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<mrgoodcat>
and are you looking for anything ruby specific?
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<zcreative>
not necessarily ruby specific, but if it plays nice with ruby or has robust sdk's i'd like that. Youtube is too bloated and I don't really want to deal with oAuth. Plus their terms of service could be limiting.
<godd2>
I mean if this is just a 'weird thing about ruby I have to learn and just get over it" that's fine, but I'd like to know that this is one of those
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<xybre>
godd2: The class keyword "Takes either a constant name or an expression of the form << object. In the latter case, opens a definition block for the singleton class of object."
<Nilium>
I'm pretty sure it is just a weird thing in Ruby.
<Nilium>
So, yeah, weird thing.
<godd2>
ok thanks for that xybre
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<xybre>
The syntax is a little odd, but its handy.
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<Nilium>
There's a rather large number of ways to define singleton methods and such.
<godd2>
I guess the keywords are just their own little monsters sometimes
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<xybre>
The biggest thing in my opinion is that Ruby's classes are their own objects, putting them in a class << self block means its much more clear and grouped together.
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<godd2>
Would a good definition of a singleton class be "the class definition which, if changed, only affects this one instance of itself"?
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<godd2>
well anyway, thanks for the insight. I should get to bed
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<fly2web>
how can i access to wireless Router?
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<mrgoodcat>
What do you mean
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<fly2web>
mrgoodcat: you dont know about Router?
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<mrgoodcat>
Are you talking about the wireless router in your home or some ruby thing I'm not yet aware of?
<fly2web>
wireless router in the home
<fly2web>
mrgoodcat:
<mrgoodcat>
It depends on your specific router usually through a web interface at the IP address of the router
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<mrgoodcat>
Google the manufacturer and model#
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* mrgoodcat
goes to bed
<fly2web>
wait
<mrgoodcat>
I'm waiting
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<fly2web>
i want break into router.
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<mrgoodcat>
No I will not help
<pragmatism>
Could a senior engineer PM me? I need career advice.
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<fly2web>
mrgoodcat: you know it but you cant help me?
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<fly2web>
or you dont know it so you cant help me?
<mrgoodcat>
Of course I won't help you break into a router. Why would I?
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<mrgoodcat>
Routers are passworded for a reason
<pragmatism>
fly2web: that's not in anyone's best interest.
<mrgoodcat>
This is not the channel for that kind of thing
<fly2web>
i want break into my router
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<pragmatism>
fly2web: reset it per the manufactorers docs
<mrgoodcat>
No way. I can't be sure its yours
<fly2web>
it is mine
<pragmatism>
fly2web: If it's yours, you have physical access
<fly2web>
dont worry.
<pragmatism>
fly2web: reset it.
<fly2web>
hole is bloked.
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<mrgoodcat>
fly2web: you'll have to forgive me if I don't believe the word of an internet stranger
<pragmatism>
fly2web: Buy a new router.
<mrgoodcat>
And that is really shady
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<fly2web>
mrgoodcat: anyway you can do it?
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<mrgoodcat>
Irrelevant. I won't
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<pragmatism>
I can't think of a router that can't be reset by physical access
<pragmatism>
There should be a sticker on it
<pragmatism>
*might
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<pragmatism>
with the default access point name and pass
<fly2web>
oh
<fly2web>
i see
<fly2web>
then mrgoodcat give me sites or doc.
<fly2web>
docs
<mrgoodcat>
fly2web: sorry your parents blocked your internet but I won't help you bypass the router
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<fly2web>
mrgoodcat: you cant help, i want know onething.
<fly2web>
you can do it?
<fly2web>
or not?
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<mrgoodcat>
I. Am. Not. Going. To. Help. You.
<pragmatism>
lol
<fly2web>
my mean is that you have skill of that?
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<fly2web>
or not?
<mrgoodcat>
pragmatism: surely someone who calls themselves pragmatism understands where I'm coming from?
<mrgoodcat>
fly2web: I think you need to drop this
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<fly2web>
ok
<fly2web>
i see.thanks
<fly2web>
buby is easy to study?
<pragmatism>
to be pragmatic is to insist to learn.
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<pragmatism>
aka the reason we all love this
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<mrgoodcat>
Wow... I've been operating under the wrong definition
<mrgoodcat>
Similar... But still wrong
<pragmatism>
pragmatic adj.:
<pragmatism>
dealing with things sensibly and realistically in a way that is based on practical rather than theoretical considerations
<mrgoodcat>
That's what i thought
<pragmatism>
word
<mrgoodcat>
I thought I was being sensible
<pragmatism>
You were
<pragmatism>
I was laughing at fly
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<Macaveli>
Morning Friends
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<dareTake>
Hi, I have a problem with named pipes in Ruby. I'm opening the pipe in non blocking read mode, and then using IO.select to query the fd and use Marshall::load to load it. I do this in a loop, however the second time aroung Marshal::load complains that the object is not an IO object.
<dareTake>
around*
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<dareTake>
this is the error --> src/daemon.rb:31:in `load': instance of IO needed (TypeError)
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<dareTake>
here's the snippet, could someone take a look?
<mozzarella>
to make the parenthesis part optional
<apeiros>
you succeeded in that
<apeiros>
the parenthesis part is optional. your regex matches.
<apeiros>
so again, why would you want to change it?
<LadyRainicorn>
He wants the first output if they exist so he can get the languages if specified presumably
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<mozzarella>
it's not optional as of now
<apeiros>
yes it is. your own testcase shows as much.
<mozzarella>
if you do "Google.translate this is a test" it won't work
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<jmaister>
what if you put [^()] in stead of . in the first group?
<apeiros>
mozzarella: yes it does work
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<apeiros>
mozzarella: note, "doesn't work" is a pointlessly vague explanation
<jmaister>
>> 'google.translate(en, fr) this is a test'.match(/^([^()]+)(\((.*)\))? ?(.*)$/)
<eval-in>
jmaister => #<MatchData "google.translate(en, fr) this is a test" 1:"google.translate" 2:"(en, fr)" 3:"en, fr" 4:"this is a test"> (https://eval.in/130040)
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<mozzarella>
p 'Google.translate this is a test'.match(/^(.+)(\((.*)\)) ?(.*)$/)
<apeiros>
mozzarella: I ask you because if you can't phrase your problem, you probably can't write a regex. and all we do is guess what you *might* want.
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<mozzarella>
>> p 'Google.translate this is a test'.match(/^(.+)(\((.*)\)) ?(.*)$/)
<mozzarella>
I want to separate the different parts
<apeiros>
mozzarella: we don't know what a "part" is for you. be specific. explain it.
<jmaister>
apeiros is right. regex is just a way of expressing what you want. if you can't explain it in plain human language first, you're going to run into problems
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<mozzarella>
I want "Google.translate", "this is a test" and "en, fr" ONLY if that part is there
<apeiros>
mozzarella: how do you understand that "google.translate" is a part?
<apeiros>
what defines it, what makes "this is a test" not a part of it?
<mozzarella>
apeiros: what do you mean?
<mozzarella>
it's a command parser, Google.translate is just an example of command
<mozzarella>
it could be anything, really, as long as the syntax is good
<mozzarella>
command(optional args) first_arg
<apeiros>
mozzarella: I still don't know how *I* could identify it as a part.
<mozzarella>
well it doesn't contain any space for one thing
<mozzarella>
and never will…
<apeiros>
see, that's a start :)
<apeiros>
tell that your expression too.
<apeiros>
what else? it seems to me it must not contain parens either?
<apeiros>
also, can you express it as what it *can* contain, instead of what it *can't* contain?
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<mozzarella>
how do I make the group non-greedy?
<apeiros>
a group is a single entity, non-greedy = optional
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<mozzarella>
what do you mean
<apeiros>
anyway, seems like you don't feel like answering my question. I think I don't feel like trying to further help then.
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<mozzarella>
I DID IT!
<mozzarella>
IT WORKS!
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* LadyRainicorn
claps and whistles.
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<mozzarella>
/^([^\s\(]+)(\((.*)\))? ?(.*)$/
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<apeiros>
congrats
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<frerich>
Hi! I'm embedding Ruby (using the Ruby 1.9.2 C API) and pre-define a couple of methods via rb_define_module_function and rb_define_method_id. Is there a way to define multiple functions and bind them all to the same generic dispatcher function which then does a 'reverse lookup'?
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<Nilium>
A for loop would be a good start.
<frerich>
Let me whip up a quick code sketch to show what I'm doing...
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<frerich>
Nilium: I.e. bind multiple functions (which may have the same name, but are defined on separate classes/modules) to the same generic dispatcher function within which I'd then like to check what funciton is invoked so that I can call the correct C++ code.
<Nilium>
They're different modules and different function names, so a batch function wouldn't really make much sense.
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<Hanmac>
frerich: are you looking for "method_missing" ?
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<Nilium>
If you want to avoid writing out a ton of calls to the same function, stick the modules and function names in arrays and just use a for loop.
<frerich>
Nilium: The issue is that the list of functions is not hardcoded, it's only available at runtime - I'm loading external plugins which expose the provided methods/propertiesvia some sort of Reflection API and I'm creating Ruby bindings for that.
<frerich>
Hanmac: Yeah I had that originally, but I dropped the approach because the Ruby script could no longer enumerate the available methods.
<frerich>
Hanmac: ...since technically I didn't actually define any Ruby methods anymore except for method_missing.
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<apeiros>
I think he's looking for the C equivalent of __method__
<Nilium>
Well, if method_missing can do the lookup, it can also define the method once it's found so that future lookups don't go through method_missing.
<apeiros>
though… the method names are the same, just the module changes?
<apeiros>
the receiver is in self (or in your case, obj)
<Hanmac>
hm add "method_missing" and "respond_to_missing?" and then overwrite the "methods" functions to add them dynamilcy
<frerich>
apeiros: Yeah, it's possible that the method names are the same but the module changes. that's why rb_frame_current_func() (which emrely returns an ID matching the name of the function) is apparently inappropriate for uniquely identifying the method.
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<frerich>
Hanmac: hmm, that might work, let me think about it...
<Hanmac>
apeiros: C equivalent of __method__ => rb_frame_this_func()
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* frerich
hoped that rb_define_module_function et al would yield some sort of VALUE which I could then lateron retrieve from within my dispatcher function to get nay custom extra information I'd need to implement the dispatch, but that doesn't seem to work out. :-/
<Hanmac>
frerich: if you use method_missing you get the name of the wanted method as parameter
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<apeiros>
frerich: you can store whatever information you want in a module
<apeiros>
via instance variables
<frerich>
Hanmac: Yeah, I used that in the past, it worked fairly well. The only downside is that the 'methods' function woudln't yield anything anymore, but if I can reimplement that myself...
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<frerich>
apeiros: True, but I'd rather not expose the internal bookkeeping to the Ruby script if possible.
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<apeiros>
frerich: then don't. receiver + method name uniquely identifies a method
<Hanmac>
frerich: add your own methods method like that: def methods(parent); super + @plugins.map(&:name); end
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<apeiros>
so store the information in C
<Hanmac>
frerich: or: make the plugins as extra Module and then include/extend them into the main Module/Class while loading the plugin ... this way you can still find the mthods via #methods
<frerich>
apeiros: True. And in the case of rb_define_method_id (i.e. defining instance methods) I could use the class of the receiver.
<apeiros>
frerich: yes. correction of what I said before: owner + method-name uniquely identifies
<frerich>
apeiros: It sounds too easy to be true, I'll give it a shot. :)
<frerich>
Thanks everybody for the feedback! :-)
<apeiros>
hf, gl :D
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<nones>
hi, is there any tools for parallel computing in ruby's stdlib?
<nones>
like python's "multiprocessing"
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<maasha>
nones: checkout the fork and parallel gems
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<shevy>
long live ruby!
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<shevy>
long live shevy!
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<gr33n7007h>
Has ruby got anything like Python's Turtle Graphics?
<frerich>
apeiros: Turns out the idea of using the VALUE of the receiver (or the class of it, in case of instance method) plus the ID given by rb_frame_this_func() works beautifully for implementing the genericDispatch we chatted about earlier. Thanks again for this idea!
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<gr33n7007h>
In ruby 1.9.3 Liguistics.use(:en) works but in 2.1 it doesn't
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<shevy>
hmm
<shevy>
odd
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<shevy>
Liguistics eh
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<gr33n7007h>
Also in 2.1 10000000000.en.numwords isn't there also?
<gr33n7007h>
god knows whats going on
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<apeiros>
frerich: great :)
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<j416>
is there a way to determine the length of a string as it would appear, printed in the current terminal?
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<j416>
use case is, I want to print a string and then print another line of say '-'es to create an underline, just as long as the string
<j416>
this works well with String#length for ascii
<jhass>
"-"*string.size
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<j416>
but if I try to underline, say 'こんにちは' it doesn't work quite as well
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<apeiros>
j416: that's probably because your terminal/font can't manage to retain monospacing with those signs
<j416>
apeiros: exactly
<apeiros>
I don't think there's a way
<j416>
I'd like a way to ask the terminal how long that string would actually be
<apeiros>
because it theoretically shouldn't be as long as it practically is
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<j416>
yeah.
<jhass>
start with finding a way to ask your terminal to draw a line of a specific pixel length
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<j416>
as this would perhaps be terminal-dependent, I'm thinking maybe the only way is to do a lot of checking, or use something like ncurses
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<jhass>
I'd consider just adding one or two spaces around your string and underline those too, so it appears centered over the underline
<apeiros>
I don't think anything character based will do
<apeiros>
you'd need a toolkit which is pixel or vector based
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<j416>
perhaps the best choice is to redesign things so that it won't need to know the length
<j416>
not underline it but rather separate it some other way
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<hard2findfreenic>
is there class/lib to provides izi IP ranges handle?
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<jhass>
what the hell are "izi IP ranges"?
<apeiros>
I guess that's how 8y olds say 'easy' nowadays. you're just an old fart now too, jhass
<jhass>
:(
<jhass>
I already got very said when I turned 20
<jhass>
er
<jhass>
sad even
<jhass>
I mean it's the first time you really notice that the number in front changes...
<apeiros>
it might also be that hard2findfreenic is in fact a very old fart, desperately trying to look young
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<jhass>
I guess I'd like to have "izi IP ranges"
<jhass>
they sound fun
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<jhass>
still, april 1st, time to write and submit an rfc
<jhass>
any ideas?
<apeiros>
:D
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<jmaister>
IPoAC
<jmaister>
Internet Protocol over Aquatic Carriers
<jmaister>
aka the fishnet
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<jhass>
hmm, "IPoAC Zone Interconnection IP ranges"
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<keymone>
are there any significant patches for 1.9.3p545?
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<keymone>
like is falcon still relevant, etc
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<momoa>
hello
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<momoa>
can anyone help me with Enumerator, please?
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<tobiasvl>
momoa: sure, just state your question and someone will probably answer
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<fly2web>
the instance variable that backs these methods should be _age <———— what mean? i dont interprete it.
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<momoa>
when I do [:a, :b, :c].cycle, I get an Enumerator back. And I can always call #next on it... but where does it store its "state" ?
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<tobiasvl>
momoa: inside the Enumerator instance itself
<momoa>
(thanks, tobiasvl)
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<momoa>
as an instance var?
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<tobiasvl>
most probably
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<momoa>
I tried listing the instance vars of the enumerator object, nothing
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<momoa>
trying to wrap my head around it :/
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<apeiros>
momoa: Enumerator is implemented in C, it probably stores it in a part which is not accessible from ruby.
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<momoa>
oh... ok, then. makes it seem magical :D
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<Veejay>
Hello everyone. I have a daemon written in Ruby that's running and I need to execute a rake task when a certain condition is met. Right now I'm using system "cd SOMETHING; RAILS_ENV=BLAH #{bundle exec rake something}"
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<Veejay>
I have two questions: Is using system here bad for memory use? Also, is there a wahy for me to execute that rake task without having to use system?
<banister>
Hanmac can you de-germanify something for me?
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<banister>
Hanmac: "Funktionale Programmierung - und damit auch Haskell - war immer anders: sehr elegant, aber eher etwas für Wissenschaftler; von theorieverliebten Sprachdesignern konzipiert, aber selten in kommerziellen Produkten zu finden. Ein Blick in die Literatur spiegelte dies. Findet man in Büchern über C, Java oder Perl Programmbeispiele, mit denen man Dateien verwalten kann, Texte mit Hilfe regulärer Ausdrücke durchsuchen oder Web-Anwendungen
<banister>
erstellen kann, findet der Leser in Büchern über Haskell viel über Monaden, Typsysteme und als Beispiel wird dann ein Fraktal gezeichnet."
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<Veejay>
Somewhat Über Monaden is even more terrifying
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<Veejay>
Somehow*
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<apeiros>
functional programming - which includes haskell - has always been different: very elegant, but something for scientists; from theory infatuated language designers designed, but rarely found in commercial applications/products.
<Hanmac>
apeiros: i think "designers designed" is a bit duplicated, i would try to find a similar word
<apeiros>
Hanmac: go ahead ;-)
<banister>
Veejay hah
<banister>
haha*
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<Hanmac>
and i would write it like "by theory-loving language designers" ;P *but i am cruel if i want*
<apeiros>
a look in literatur mirrors this. while you find in books about C, Java or Perl examples to manage files, search texts using regular expressions, or how to create web applications, the reader finds in books about haskell a lot about monads, typesystems, and as an example, you draw a fractal
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<apeiros>
hth banister
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<apeiros>
it's a relatively direct translation.
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<spstarr_work>
i like new style since it reminds me more of new C/C++ style 'tag' structures
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<phutchins>
anyone written a wrapper around SSH in ruby?
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<apeiros>
phutchins: you mean, like, net/ssh?
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<phutchins>
apeiros: yes that or somehow using system to launch ssh and have the ability to send commands to it before the user does
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<phutchins>
The goal is to take care the server to log into for the user and ssh to the host. I have this working now. But i need to programatically sudo su - [anotheruser]
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<phutchins>
i've been hacking at net/ssh for a day and feel like i've gotten close but for such a simple task it seems that net/ssh is overkill. unless i'm missing an easier way to do this
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<phutchins>
i've got it connecting and printing stdout from the ssh connection, starting a pty and shell
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<phutchins>
but the part where i need to take stdin from the user and send it to the shell is tricky.
<nacho_>
I'm looking for the name of a famous ruby guy! I watched one of his talks back in 2006, he had a long name which ended in III (as in Richard the III). Any ideas?
<nacho_>
He gave a talk making parallels with a game for building your own world, I think it was called "My little world"
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<phutchins>
I found examples that use termios to do the input buffering but i'm having troubles with that as well as it used session (i thiink) which doesn't exist in the library any more...
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<phutchins>
moved on to trying to work with net/ssh/session which is where i'm at now...
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<phutchins>
So i started thinking maybe there was an easier way to do this that i'm missing...
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<apeiros>
nacho_: James Edward Grey II?
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<apeiros>
oh, *Gray
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<apeiros>
@jeg2 on twitter
<nacho_>
@apeiros you got it! thanks!!
<apeiros>
phutchins: too involved, can't help I think.
<phutchins>
apeiros: kk, no worries.
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<shlant>
can anyone help me find out why my regex isn't working?
<apeiros>
shlant: that code looks syntactically invalid
<apeiros>
shlant: include does not create/take a block
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<apeiros>
I'd verify that you read the file you expect to read. i.e. that port_config really contains what you pasted.
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<apeiros>
also even if you do that correct, it'll fail. your expectation is an array of strings. you convert it to an array of integers in apache_configured_ports.
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<shlant>
apeiros: so to_s instead of to_i?
<apeiros>
why'd you call to_s on a string? just drop the map.
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<arount>
apeiros: are you french ?
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<gaussblurinc>
is there any way to generate class instance setters/getters? (instance setters/getters for class object)
<toretore>
just run attr_x in the right scope
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<toretore>
class << Klass; attr_accesor :foo; end
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<gaussblurinc>
toretore: great, thanks!
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<tobiasvl>
s/accesor/accessor ;)
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<toretore>
alias atr_axesor attr_accessor
<gaussblurinc>
tobiasvl: I search a way to manipulate classes as objects:)
<tobiasvl>
gaussblurinc: well classes ARE objects ;) (s/objects/instances)
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<tobiasvl>
toretore: er du den ekte Tore Torell
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<toretore>
selvsagt
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<apeiros>
arount: bien sûr
<gaussblurinc>
toretore: how to read line 'class << Klass;' ? not sure that I understand usage of shift left
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<apeiros>
arount: pour quoi?
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<apeiros>
gaussblurinc: that's not a left shift there. it's a syntax construct to open the singleton class of Klass
<tobiasvl>
gaussblurinc: it opens up Klass's singleton class
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<gaussblurinc>
tobiasvl: uh, see. it reveal class as instance
<toretore>
a class *is* an instance, of Class
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<ak5>
hey everyone, I wanted to ask some questions about the workflow
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<ak5>
regarding rvm usage, should I create a gemset for each project I am working on
<ak5>
or for each type of project?
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<arount>
apeiros: parce qu'apeiros ça ressemble à apéro
<arount>
apeiros: et j'aime bien les apéros
<ak5>
as in, rvm use rubyversion@rails or rubyversion@project-using-rails
<apeiros>
arount: hah, sorry, I'm not french :-)
<apeiros>
and apeiros has nothing to do with apero
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<arount>
apeiros: haha ok
<arount>
apeiros: apero means drink
<arount>
the best moment of a day
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<toretore>
j'aime bien les apeiros
<arount>
toretore: c'est signe de bonne santé
<apeiros>
arount: I'm swiss, I know the word ;-)
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<arount>
apeiros: :)
<hemanth>
when was the last time you monkey patched?
<apeiros>
arount: but I didn't think it was used outside of switzerland - I thought the common french word for that was aperitif
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<arount>
apeiros: right, the "real" word is apéritif, apéro is a diminutive
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<apeiros>
excuse my lack of accents. I'm lazy :)
<arount>
maybe i should create a chanel #apero
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<arount>
apeiros: no worries, i speak english like a foot (it's a french expression litteraly translated ..)
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<toretore>
feet don't speak
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<tobiasvl>
feet don't fail me now
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<arount>
toretore: after many apéros, my feet speak
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<toretore>
a few more shoud quiet them
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<arount>
toretore: :)
<gaussblurinc>
oh, shi-i-it, all stuff with private/protected methods affects class too?
<cocotton>
I have an array containing string that begin with an integer (e.g. ["123 blabla", "59 bleble", "2918 hoho"]. Is there a way to sort that array on the integer in each string?
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<toretore>
Enumerable#sort is your friend
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<cocotton>
toretore: I'll go read about that right away :)
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<havenn>
cocotton: sort_by &:to_i
<toretore>
actually Array overrides it, so it's Array#sort
<olivier_bK>
i have a question
<olivier_bK>
i need to develop an application with a server and a client to get file back in client computer.
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<olivier_bK>
this api must do some task like update, synchronize etc..
<olivier_bK>
could you tel me what is the most appropriate for doing that ?
<atmosx>
smart thought, I forgot about string.to_i
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<atmosx>
bbl
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<havenn>
toretore: using String#to_i for how it works is fine to rely upon. only caveat I can think of is that if the String doesn't begin with digits you'll get a `0`, but easy enough to handle that.
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<[ROOT]XxNeoLiTHi>
Hi all, need some advice on lambda's/method pointers.
<[ROOT]XxNeoLiTHi>
Im trying to get the following to be a dynamic directory based on the root as it changes: :dir => { :output_root => File.expand_path("."), :boxes => lambda { File.join(boxes[:dir][:output_root], "boxes") } }
<havenn>
unless `0` is what the string might begin with. >.>
<[ROOT]XxNeoLiTHi>
but i dont want to do a lambda.call all the time
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<toretore>
havenn: well, that's an opinion
<[ROOT]XxNeoLiTHi>
would it be possible to create a global method and assign a method reference to the variable instead?
<toretore>
mine is different
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<havenn>
toretore: second example in the docs for String#to_i: "99 red balloons".to_i #=> 99
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<havenn>
not some obscure behavior, just a core Class standard method
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<toretore>
that doesn't change my opinion
<havenn>
okay :P
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<lectrick>
[ROOT]XxNeoLiTHi: I would not make a lambda dependent on the state of an earlier key in the hash LOL
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<[ROOT]XxNeoLiTHi>
thats assuming context but I get your point
<toretore>
make a class
<lectrick>
[ROOT]XxNeoLiTHi: also your output root isn't dynamic
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<toretore>
with methods
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<lectrick>
[ROOT]XxNeoLiTHi: yeah you're trying to do too much with a hash here. just make a simple class
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<lectrick>
[ROOT]XxNeoLiTHi: you'd call it like this: DynamicDirectory.new(output_root = File.expand_path('.')).boxes
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<lectrick>
[ROOT]XxNeoLiTHi: actually the output_root = File.expand_path('.') should be in the initialize method of this class, my bad
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<lectrick>
so then you could just do DynamicDirectory.new.boxes
<toretore>
guy whose nick is too cumbersome to write: what's the purpose and context of this code?
<lectrick>
[ROOT]XxNeoLiTHi: yeah, also change your damn nick like toretore said. Not everyone has autocomplete I guess
<[ROOT]XxNeoLiTHi>
lol
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<[ROOT]XxNeoLiTHi>
gotcha and gotcha
<toretore>
i do, but i can't even read that
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<toretore>
somewhat better
<xxneolithicxx>
tough crowd :-P
<toretore>
the worst ones are those that mix lI0O|
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<apeiros>
arount: it's greek. the unbound, infinite. I derived it from anaximandros' "apeiron", the matter from which everything was created
<apeiros>
coincidentally, it also means "the unteachable" :D
<arount>
apeiros: hum, i should use google before asking stupid question
<arount>
apeiros: anyway, i preffer apero
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<arount>
prefer*
<apeiros>
no wonder… who wouldn't prefer edibles above all else? :D
* apeiros
nouns language - the new trend after verbing
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<mib_mib>
hi - why does enumerable not contain 'uniq' ?
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<apeiros>
mib_mib: no idea. wondered about that myself.
<apeiros>
mib_mib: .to_a.uniq
<mib_mib>
apeiros: it has a sort method....
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<mib_mib>
apeiros: yeah that works, except i have a CSV::Table and i want to remove the uniq rows, but i dont want arrays, i want a CSV::Row object so i can refer to fields using json... without converting and converting back
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<apeiros>
mib_mib: an Enumerable#uniq would return an array anyway
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<Sawbones>
hey guys, what's the difference between defining `def myMethod...end` and `def self.myMethod...end`
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<apeiros>
Sawbones: one defines an instance method in the class/module, the other a class method
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<apeiros>
that's the quick and lazy explanation
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<mib_mib>
apeiros: yeah i guess you're right - although i want to keep the row objects... i guess i will just have to put them in an array myself
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<apeiros>
the thorough and more correct explanation only changes for the def self.foo one: it defines an instance method in self's singleton_class. so you can do this for every object which can have a singleton_class (which is almost all)
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<apeiros>
mib_mib: to_a.uniq should give you an array of row objects
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<apeiros>
if not, then .each doesn't yield row objects
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<apeiros>
oh, or to_a doesn't…
<mib_mib>
apeiros: to_a gives you an array of arrays
<apeiros>
right, because Table has its own to_a and doesn't use Enumerable#to_a
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<apeiros>
well, just check what gives you an array of rows, then call .uniq on that
<havenwood>
Sawbones: in `class Example; def self.something; end end` the `self` is `Example`, so you're defining `def Example.something`. The `self` makes it so you can rename the Class/Module without having to rename everything.
* apeiros
off for commute
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<havenwood>
Sawbones: so without `self` you'd `Example.new.something` and with it you'd `Example.something`.
* havenwood
needs more coffee.
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<Sawbones>
ohhhh ok, it's sort of like a static method?
<Sawbones>
to access a method without self, I'd have to instantiate a new Class before having access to the method
<nath_schwarz>
Is it mandatory to create a class variable w/ "def classVariable; @classVariable: end" or is the statement @classVariable enough?
<havenwood>
Sawbones: ya
<Sawbones>
woo! thanks havenwood
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<robde>
how would you convince someone of ruby in maximal three sentences? (someone who did some java, lisp, python, c++, haskell and prolog programming but couldn’t find his favorite language yet)
<freeone3000>
How do I make ['a'].zip(['a', 'b']) { |a, b| p a + ' ' + b } have a second iteration of 'nil, b'?
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<noctua>
hey everyone. I try to install rails on my Mac (Mavericks). After installing it says that rails is not installed. This is what i got: https://gist.github.com/donnoc/9916660
<workmad3>
noctua: please don't use sudo for installing gems
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<noctua>
workmad3: but when i don't use sudo i got "permission denied"
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<workmad3>
noctua: use 'gem install rails --user-install'
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<noctua>
workmad3: thx, i will give it a try
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<noctua>
havenwood: Yes ... this woked. is it an other path than export PATH=$PATH:/Users/artur/.gem/ruby/2.1.0/bin ?
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<noctua>
havenwood: ok, I see it is an other xD ... thank you verry much
<benzrf>
apeiros: if u already have libfuse/libfuse-dev then u can just gem install quick
<benzrf>
:u
<apeiros>
benzrf: let me see how well homebrew works today :)
<benzrf>
+
<benzrf>
oop
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<shevy>
hah
<shevy>
you poor osx dudes!
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<noctua>
why poor?
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<havenwood>
noctua: he just means we have no money.
<noctua>
havenwood: xD
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<benzrf>
cuz u spent it all on expensive apple bullshit
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<noctua>
benzrf: Why? you think 10,000EUR for the top Mac Pro is too much?
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<noctua>
upgraded*
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<shevy>
noctua for having to depend on homebrew!
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<Hanmac>
shevy: did you hear that about the new Airport in Berlin? they think it would cost less if they breakdown the city, search for an existing/working airport and build berlin around the new one again
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<shevy>
Hanmac unfortunately today is the most hated day
<shevy>
I am boycotting that day though
<certainty>
Hanmac: it's a good one though :)
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<shevy>
well
<shevy>
the problem is that they want to build something
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<shevy>
the proper solution would have been to do away with Berlin altogether
<shevy>
then you won't need an airport either
<shevy>
keep it simple!
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<Hanmac>
certainty: the problem, if they keep doing it like that it seems to become true
<horrorvacui>
Its been months since I was on here, but I still see shevy talking about things
<horrorvacui>
lol
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<Hanmac>
horrorvacui: no wrong, i keep talking about things, shevy is only responding ;P
<horrorvacui>
yeah seems like the same ole people on here
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<aniM>
hey folks. I am trying this and index and deleted method don't seem to work for index 0 element:
<shevy>
horrorvacui there are some new folks but they often talk much less
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<shevy>
horrorvacui usually most just have one question, it gets solved (or not), then they stop talking
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<Thaifood>
hi, I am on Centos 6.5. I did "yum install ruby" to install ruby and then did "gem install guard-livereload" but I get "gem command not found". Any ideas please ?
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<Thaifood>
i have 1.8.7 ruby installed
<freeone3000>
Thaifood: CentOS packages ruby and rubygems separately.
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<Thaifood>
freeone3000: thank you !
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<workmad3>
Thaifood: also, ruby 1.8.7 is completely dead now... if that's all that is available in packages, you really want to install using something like ruby-install, ruby-build or rvm
<horrorvacui>
Is version 1.8 even supported any more?
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<s2013>
yea
<s2013>
get 2
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<s2013>
1.9.3 if you must get something earlier
<horrorvacui>
Consider rvm,chruby, rbenv or something
<Thaifood>
centos 6.5 only has that in the packages
<shevy>
that's sad
<workmad3>
horrorvacui: chruby and rbenv don't have ruby installation... ruby-install and ruby-build are the respective builders :)
<shevy>
enjoy your old ruby
<horrorvacui>
true
<banister>
workmad3 hey, do u know much about ack? htf can i get it to ignore log files
<Thaifood>
and guard-livereload requires 1.9.2
<Thaifood>
shevy: how to get a newer one ?
<shevy>
compile it
<horrorvacui>
but If he follows the github instructions he'll be told how to acquire ruby-install or ruby-build
<shevy>
Thaifood, that does not make sense - you can use the --prefix option to compile ruby into some directory
<workmad3>
Thaifood: ruby-install and rvm will even make good use of the package manager for the dependencies that work from there (ruby-build might do to, but last I checked you needed to manually invoke the package manager there)
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<shevy>
as far as I know, RVM also uses --prefix
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<havenwood>
Thaifood: if you need only one Ruby a nice option is to ruby-install to /usr/local
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<freeone3000>
Ah, okay. 0.7.3 is generating decent coverage.
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<Thaifood>
Anyone know how to setup guard-livereload ? I got them installed but the docs make no sense to me on what next.
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<horrorvacui>
Thaifood: have you used guard init and setup your guard file etc?
<horrorvacui>
Thaifood: tell us what you are stuck on in particular
<Thaifood>
i'm unable to find guard to run it atm
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<workmad3>
Thaifood: the docs for Rack::LiveReload tell you what to do in rails (it's just adding a single line to config/environments/development.rb iirc)
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<Thaifood>
maybe here ? /opt/ruby/211/lib/ruby/gems/2.1.0/gems/guard-2.6.0/bin
<jpstokes>
I'm finishing up a coding assignment and wouldn't you the last thing I need to do is giving me problems...anyway, I have the following rspec file to test my app...in the last test case I've having a problem with the test passing SOMETIMES and sometimes failing. Any insight would be more than appreciated '#triple_crown_winner when critieria met' https://gist.github.com/jpstokes/9918743
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<Thaifood>
i did setup a guard file
<Thaifood>
i think i'm getting there
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<jpstokes>
I'm finishing up a coding assignment and wouldn't you know the last thing I need to do is giving me problems...anyway, I have the following rspec file to test my app...in the last test case I've having a problem with the test passing SOMETIMES and sometimes failing. Any insight would be more than appreciated '#triple_crown_winner when critieria met' https://gist.github.com/jpstokes/9918743
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<jhass>
jpstokes: clean up or yet better do not even persist the objects you create
<Thaifood>
yay it works
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<horrorvacui>
jpstokes you need to dry that up
<Thaifood>
had to add ruby to path
<jpstokes>
don't understnad
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<atmosx>
jpstokes: it's wet
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<atmosx>
jpstokes: hydrolysis might occur
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<jpstokes>
I'm am rolling back the db after each test case
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<jhass>
as you can see @@bar is shared accross instances
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<jhass>
so if a test hit your method it stored @@players and due to the ||= later test had no chance to reassign it
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<jpstokes>
cool thanks for pointing that out
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<jpstokes>
I did install rubocop btw and it does not like my code :-(
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<jhass>
in practice you never need class variables, so don't use them unless you can argue why every other solution wouldn't work
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<horrorvacui>
jpstokes: did you ever get the test case to pass?
<jpstokes>
horrorvacui: yes I changed the class variable to an instance variable as jhass suggested and that fixed it
<jpstokes>
working on these rubocop suggestions now
<horrorvacui>
jpstokes: mind me asking what kinda of class is this assignment for?
<jpstokes>
this is actually for a job
<horrorvacui>
job interview?
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<jpstokes>
phase 1...i think the next step is the interview
<horrorvacui>
I see.
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<shevy>
phase 2... draw the knife
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<horrorvacui>
Are ghost methods something that are frowned upon in use in the real world? I feel like they have to much potential to clash with other methods.
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<shevy>
what is a ghost method
<shevy>
and there can't be a clash in ruby, can there be? the last one defined always wins
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<horrorvacui>
method_missing
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<shevy>
ack
<shevy>
the most horrible method (right after eval)
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<toretore>
horrorvacui: as with most things, it depends
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<horrorvacui>
Also, since its now > 1.9 is the practice to use BasicObject for a clean slate or do people still use the undef_method?
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<toretore>
you should use BasicObject
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<horrorvacui>
Okay thanks toretore
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<amaltson>
hello everyone, I'm trying to use Rake's package task to build up a tarball, but I'd like it to start the root of the tarball in a subdirectory. Is there a way to do that? Been looking here: http://rake.rubyforge.org/classes/Rake/PackageTask.html
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<horrorvacui>
I'm trying to get an idea of what type questions I might get in a Ruby job interview. Does anyone recall questions on data structures such as trees, graphs, etc?
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<canton7>
amaltson, Dir.chdir first ?
<amaltson>
canton7: I tried that :(
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<canton7>
and...?
<amaltson>
when I do a p.package_files.include('**/*') after the Dir.chdir it packaged the entire root folder
<iitywimwybmab>
horrorvacui: I was asked questions like that when interviewing for companies out west...something like "write a 4x4 boggle board solver"
<iitywimwybmab>
horrorvacui: when you try to solve the problem, you might consider data structures
<amaltson>
the package_files is a Rake FileList, trying to see if there's a subdir feature on FileList
<horrorvacui>
iitywimwybmab: just seems like ruby lacks as much need for focusing on datastructure implementation
<horrorvacui>
but thats what I was looking for
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<freeone3000>
horrorvacui: The startup time is too long, and performance is too low, for useful engineering to produce tangible benefits. Much like you don't optimize COBOL, Ruby speed optimization is really your last priority.
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* Hanmac
writes C++ bindings for ruby ... the speed is not that bad (even when the eventsloop is on the ruby side)
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<horrorvacui>
Well I guess just to brush up some, I'll still play around with some data structures.
<banister>
Hanmac wanna hang out
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<amaltson>
yeah don't see anything about subdirectories in FileList
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<horrorvacui>
I think the most fearful part of the job interview is the prospect of coding without all the available references I have here at my desk. I can't for the life of me remember all the matchers in rspec, all the query methods of ActiveRecord etc...
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<horrorvacui>
I think I'm going to just make a bunch of flash cards and finally conquer all it.
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<j416>
what is the difference between Range#cover?, Range#include?, Range#member?, and Range#=== ?
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<j416>
are they the same?
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<shevy>
hmm
<shevy>
you are asking difficult questions, my son
<horrorvacui>
hold on let me test that in irb/pry
<shevy>
lol
<horrorvacui>
lol
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<j416>
haha
<shevy>
horrorvacui do that in a job interview
<j416>
:D
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<shevy>
"Hold on - I shall test it, then give an answer."
<j416>
you're right, this is an interesting interview question that a ruby guru would ace and a non-ruby-guru would have no clue about
<horrorvacui>
I just find the last one suspect.
<horrorvacui>
But it all does the same thing.
<j416>
the last one is the one used by case, apparently
<horrorvacui>
Ahh yeah that explains it
<Hanmac>
j416: look :
<Hanmac>
>> r = "a".."aa"; v = "b"; [:cover?,:include?,:member?,:===].map {|m| r.send(m,v)}
<horrorvacui>
I can't tell is that really sim city or nyc :P
<j416>
I was going to say wow, that's NY
<Hanmac>
apeiros: nice, now try to build the new berlin airport with it ;P
<j416>
but it's a real photo, right?
<apeiros>
horrorvacui: it's real nyc
<j416>
hah, cool
<yekta>
shevy: hah… :) well I guess that makes sense doesn't it. I guess I'm trying to see the interactive output though, so like I'm tryin got see the progress of an rsync in a rake task, but it only outputs after the rsync is done with puts.
<j416>
yekta: stop guessing, start knowing
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<shevy>
in pictures like that from new york city, you can see that the town grew artificially on a sketch board
<yekta>
shevy: (well, its not interactive, its just dynamic)
<yekta>
j416: -_- that was an expression, not a state of fact
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<horrorvacui>
yekta: try looking up pv and rsync
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<freeone3000>
yekta: IO.popen() gets you the output as a readable.
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<yekta>
Hmm
<horrorvacui>
just thought you mike like the added progress bar
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<horrorvacui>
if you figure out the output
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<j416>
yekta: :P
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<yekta>
Cool, I'll check those approaches out. Thank you.
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<freeone3000>
Say I have a set of tests which look up the presence of a file in the OS and attempt to execute it. What's the best way to write unit tests for these methods?
<bilbo_swaggins>
I think it ought to return a message like that
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<bilbo_swaggins>
I might like Python, come to think of it
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<rfennec>
don't say that, stick the the ruby world (evil laugh)
<bilbo_swaggins>
Working on Haskell first though :) and ruby has Sinatra, which I have a definite use for, as well as Rails, which I have a different use for (a paid gig)
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<rfennec>
:)
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<shevy>
porn
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<arcanez>
when using DateTime.parse on a datetime string without a timezone, how can I force the tz to local?
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<lectrick>
it doesn't default to local?
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<lectrick>
also, you may need to define "local". Server local? Client local?
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<lectrick>
The latter is not trivial, arcanez
<arcanez>
server..
<arcanez>
right now, it defaults to UTC
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<zorak>
hi friends
<zorak>
i have a question about "return"
<zorak>
in codeacademy course, they said that return dont need to be used
<zorak>
that the script will ork equal if i use return or not
<toretore>
arcanez: you should be explicit about what timezone you want
<zorak>
but in actuall practice i see that sometime i need use return and other times not
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<toretore>
zorak: example?
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<toretore>
the only time you have to use return is when you want an early return
<jhass>
zorak: the value of the last statement in a method will be it's return value. If you use a return statement not being the last statement in a method, it will abort the method at this point and return the given value
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<zorak>
jhass: so, if im maing an exit i need use return because i want to exist if the case
<jhass>
"maing" ?
<benzrf>
bbl
<zorak>
making
<toretore>
zorak: it would be easier if you could give some real code examples
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<bilbo_swaggins>
>> def foo bar; return if bar == 1; :baz; end; "#{foo 1} #{foo 2}"
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<dku>
jhass: ahh, that did the trick - thanks!
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<horrorvacui>
Do you think brain teasers are still common in job interviews for ruby/RoR jobs?
<apeiros>
lectrick: yeah, I like to eat too, hence sports. otherwise I'd become one of those grossly overweight people. and I don't want that.
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<horrorvacui>
I like them, but I don't want them at an interview?
<horrorvacui>
.*
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<otyugh>
hey. I'm trying to install "agritux" from git. It recommand using "bundle install" for installing. Doing so only get me the following message :"Fetching surce index from http://rubygem.org/" "Retrying source fetch dueto error (2/3): Bundler::HTTPError Could not fetch specs from http://rubygems.org". Any idea ?
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<horrorvacui>
So did Tom Preston-Werner get fired from github?
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<tcstar>
I haven't heard of anything about him being fired -- just still suspended as far as i know
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<toretore>
anyone know if conditionals in ruby regexes need the else part?
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<centrx>
conditionals in ruby regexes?
<Veejay>
Hello, I have a program where I create two threads. Both of them display messages using puts and I've noticed that the produced output is broken (i.e. I don't have the messages on a separate line for each output). Can anyone explain the reason why I'm observing this behaviour?
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<Veejay>
I suspect a race condition, as is often the case with threads, but I'd like to understand the underlying mechanism
<hoelzro>
Veejay: you mean the messages are interleaved?
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<toretore>
Veejay: that's simply the way threading works
<toretore>
a thread can be preemted at any point in its execution
<Veejay>
hoelzro: Not really interleaved no, more like I'm not seeing the newlines where I expect them to be
<toretore>
it's common enough to get output like "From thread1\nFrom thread2From thread1\n\n"
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<toretore>
which means thread2 got interrupted between "From thread2" and "\n"
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<Veejay>
As if the puts itself is broken down to two separate actions, the print and then the printing of the newline and the threads are somehow printing, printing, printing, printing the newline, printing the newline
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<Veejay>
toretore: Yeah
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<hoelzro>
depending on how Ruby handles the I/O, it could be several different operations
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<hoelzro>
strace is your friend here
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<toretore>
someone mentioned it earlier, and it's kinda weird since the gil should prevent that behavior
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<horrorvacui>
What if it isn't MRI ruby
<hoelzro>
should, yes
<havenwood>
Veejay: you'll notice if you put an explicit "\n" at the end of the string with #puts it won't happen
<Veejay>
havenwood: Ah interesting
<toretore>
the c implementation of puts should be synchronized while it's printing
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<havenwood>
Veejay: the way the #puts method works, if it is adding an implicit one it may not be synced, but explicit is
<Veejay>
So I guess replacing the puts with a print "#{string}\n"would do the trick as well?
<Veejay>
I a space there sorry
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<havenwood>
Veejay: yup, a good trick
<hoelzro>
the userspace impl might do buffering as well
<Veejay>
I'll try that then
<toretore>
ah yes
<Veejay>
toretore: What do you mean synchronized?
<toretore>
one thread runs until it's done without being interrupted
<Veejay>
OK
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<Veejay>
I could also use a mutex but oh well, seems a bit panzer-ish
<toretore>
if it's just this then it's not a big deal, but if you're doing more stuff then it's a good idea
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<toretore>
if you have messages coming from several threads you could put them in a queue
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<Veejay>
Yes, that's another option indeed
<Veejay>
OK, I'll give all that stuff a spin on the morrow
<Veejay>
Thanks everyone
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<shevy>
dumdedum
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<aces1up9939>
hey guys, what IO class / method would I hook to calculate all incoming bytes over the wire to my machine?
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<wallerdev>
aces1up9939: might need to use something like libpcap for that
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<wallerdev>
probably ruby bindings for that
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<aces1up9939>
wallerdev i don't need to go that deep, but someone the other night suggested i hook the IO library, as all incoming data comes through that, just didn't know what method is the main incoming method that handles like socket incoming data etc.
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<wallerdev>
oh like running a server on your machine and having people connect to that?
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<wallerdev>
if so you probably want to look at the Socket class, maybe TCPServer, etc
<juanmnl>
hello! has anyone used RubyMotion? if yes, is it worth it? or should i go with cocoa/obj-c? Tx! :)
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<wallerdev>
stick with cocoa/obj-c
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<wallerdev>
obj-c is a decent language and all code samples and libraries you use are going to be in obj-c, no reason to force ruby in there
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<whatasunnyday>
hi! i have absolutely no experience with messaging/job queueing systems and i want to use one for my side project. does anyone have a suggestion on how should i go about evaluating between resque, rabbitmq or sidekiq? is there a “rails” go to?
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<juanmnl>
I'll try obj-c then, thanks for your answer wallerdev