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<agent_white>
Evenin folks
<havenwood>
g'eve
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<benzrf>
hej da
<benzrf>
havenwood: any luck o.o
<havenwood>
benzrf: nada
<benzrf>
dag
<havenwood>
didn't try of os x, but os x was abort, abort abort
<havenwood>
off of*
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<havenwood>
benzrf: i get the concenpt, but yeah the OS X implementation just isn't quite there yet
<havenwood>
at least not on latest OS X
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<benzrf>
:I
<havenwood>
benzrf: to be fair, i'm out and about and running a dev version of OS X
<benzrf>
right now you can do this:
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<benzrf>
$ [run script for doing the thing]
<benzrf>
$ cd quick_test/SomeClass
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<benzrf>
$ vim some_methods.rb
<benzrf>
[write some methods, save]
<benzrf>
$ pry-remote-em
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<havenwood>
em?
<benzrf>
> SomeClass.new.a_method
<benzrf>
havenwood: eventmachine
<benzrf>
it allows multiple conns
<havenwood>
right
<havenwood>
but i thought, nvm
<benzrf>
[this is what you can do atm]
<benzrf>
[not what it is complete]
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<havenwood>
benzrf: so whatcha gunna call the pry plugin?
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<havenwood>
:)
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<havenwood>
benzrf: i just took a code-spike stab at pry extensions with pry-drb, i need to give that some love and make it proper: https://github.com/havenwood/pry-drb#readme
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<benzrf>
code-spike?
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<havenwood>
benzrf: a one-off script i wrote that i mentioned at a pry meetup at rubyconf in miami and cirwin convinced me to gemify the next day
<benzrf>
o=
<benzrf>
what do?
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<havenwood>
benzrf: starts a drb server to persist hash-like values across pry sessions, nothing fancy
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<benzrf>
neat.
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<havenwood>
benzrf: but uses DRb's fanciness
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<benzrf>
anyway quick isnt gonna be a pry plugin
<havenwood>
aha
<havenwood>
benzrf: ah right, can be used for lots of things
<havenwood>
huh
<benzrf>
to be precise, you'll do `quick pry' and itll open a pry in the module your pwd corresponds toastyne_
<benzrf>
*to
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<benzrf>
*each module will have a binding stored on it so that you can have persistent vars
<benzrf>
also planning on integration with dmtcp
<benzrf>
so that you can freeze and thaw projects
<havenwood>
nifty
<benzrf>
persisting state for the length of your usage
<benzrf>
:-)
<benzrf>
it's meant to be a dev env, not a tool
<benzrf>
smalltalk-style
<havenwood>
kinda reminds me of Maglev Gemstone, yeah smalltalk
<benzrf>
atm the way it works is that you can create .rb files in any dir
<benzrf>
dir structure corresponds to module-constant hierarchy
<benzrf>
plus special dirs for singleton classes
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<havenwood>
i'm pretty curious if MagLev is going to go forward as a thriving project or die on the vine.
<benzrf>
whenever a .rb file is written, the code in it is module-exec'd in the module it's stored in
<havenwood>
hmm
<benzrf>
unless there's a syntax error
<benzrf>
it also disallows having anything except for method decls unless the file is called 'header.rb' atm
<benzrf>
to encourage having code that can be reloaded non-effectually
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<benzrf>
it also spawns a read-only whatever.in_use.rb file that contains the last evalled version of whatever.rb
<benzrf>
so that you can see if it got loaded
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<benzrf>
presumably usable to make plugins or whatever
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<bawNg>
I just started getting weird rack errors when trying to do tiny file uploads via HTTP POST... Anyone ever seen errors like "No such file or directory - /tmp/RackMultipart20140327-59318-1cfcqyd.lock"?
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<benzrf>
bawNg: dont suppose it could be a threading thing
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<benzrf>
wait no
<bawNg>
benzrf: No, this is a single threaded application
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<wallerdev>
your names are too similar
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<benzrf>
i saw bawNg and i first thought "bnagy's alt nick"
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<benzrf>
havenwood: also also planning to add some kind of simple api for evaluating code snippest
<benzrf>
*snippets
<benzrf>
that way, editor plugins for testing code as you write it
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<hfp>
Hey guys
<benzrf>
within an actual env that has the vars you ned
<benzrf>
*nee
<benzrf>
d
<anoldhacker>
I've been looking into DCI (Data Context Interaction — http://www.artima.com/articles/dci_vision.html.) I don't like what I'm seeing out there, so I'm rolling my own. There is a problem, however. I have determined that I need to use wrapper objects, and these suffer from identity disorder. My solution is to make them VERY thin. In particular, I want to redefine all of the identity methods. ( https://gist.github.com/student/979729
<benzrf>
basically im just swiping as many Smalltalk/SLIME features as I can think of ways to impl
<benzrf>
=]
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<bawNg>
I think I fixed the exception by resetting perms of /tmp
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<bawNg>
Strange that something messed with the /tmp perms
<anoldhacker>
Someone did a b….a….d thing….
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<bawNg>
Still can't get my file uploads working for larger than microscopic files, but it seems to be something related to nginx
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<bawNg>
I always up the client upload file size limit on nginx when I install it, but for some reason it doesn't seem to be taking affect in this case
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<anoldhacker>
As in a config setting that limits file size?
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<bawNg>
Which is odd, considering I'm pretty sure it works fine for other applications using nginx on this same box
<hfp>
Hi guys! In the following: https://eval.in/127491, in the method brightness_index, can I use @r, @g, @b and r, g, b as variable names interchangeably? Is one better than the other? It seems to work with both but would there be any subtlety I missed?
<anoldhacker>
I would try changing another parameter. See if it is reading the file that you think it is.
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<bawNg>
It's not reading a file, it doesn't seem to be reaching my application code at all
<bawNg>
And it also doesn't log anything in nginx' error or access log
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<bawNg>
Nginx just gives a response 500 if the file is bigger than a few, or maybe even under a KB
<anoldhacker>
If it isn't getting to your application code, how does it know what to do with the request?
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<anoldhacker>
Unless it is just choking on the request.
<bawNg>
Exactly... something very odd is going on
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<anoldhacker>
If so, then there is probably some config outside your application to adjust.
<havenwood>
hfp: There is indeed some subtlety, especially when multithreading. I guess it doesn't matter till it matters? I can't think of a concise explaination.
<bawNg>
A file under 1KB works fine
<bawNg>
Everything else doesn't even reach my application
<bawNg>
But like I said, my upload file size limit on nginx is file, and even by default it isn't anywhere close to as small as 1KB
<bawNg>
So something else is going on, something I've never seen before
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<hfp>
havenwood: I see. So I should be using the argument variables, not the instance variables? Why are they even set then if we don't need them? Is it so that I can access them from outside the class with Object.r, Object.g and Object.b ?
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<havenwood>
hfp: If the whole instance should know about it, an instance variable lets that happen without needing to pass local variables around as arguments.
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<havenwood>
hfp: but sometimes passing them around is exactly what you need
<havenwood>
depends
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<hfp>
hmm...
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<havenwood>
hfp: You *can* access instance variables outside the class, but you have to do it manually unless they're exposed by method/attr.
<havenwood>
hfp: usually, you use public methods and don't dip in an get instance variables that aren't exposed - but ya can
<havenwood>
s/an/and
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<juanmnl>
hi, noob here, i'm trying to populate a db with an object "chapter" that has a "number" attribute. Each object should have only one number. I tried number = (0..12) but it doesn't work. What should i do? tx :)
<benzrf>
hfp: basically, store something in an ivar if it would make sense for the object to 'know' about it
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<benzrf>
hfp: if you were to receive this object from an API, would you expect to have to put that data into it?
<benzrf>
or would it be already in there?
<bawNg>
Found the issue
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<bawNg>
/dev/sda1 9.2G 8.8G 0 100% /
<benzrf>
bawNg: lol
<bawNg>
:P
<havenwood>
bawNg: hehe
<benzrf>
juanmnl: number attribute?
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<benzrf>
juanmnl: you mean with attr_accessor or the like?
<havenwood>
juanmnl: what ought `number ==`?
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<bawNg>
Best part is, it's nginx's log that filled up /
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<juanmnl>
i may have explained wrong. I have a chapter that has a title and a number:integer, i'm using a factory to populate the db. I want to create 12 chapters with the number filled up in sequence ch1(number=0)...ch12(number=11)
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<juanmnl>
hope it's clearer, doing my best with english :P
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<hfp>
Kinda, what do you mean by the object should know about it or not?
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<wallerdev>
dat netsplit lol
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<benzrf>
hfp: well
<benzrf>
if you think of an object as an entity that you can ask questions and give commands (by sending messages, aka calling methods)
<hfp>
yes
<benzrf>
then the entity's knowledge is the data stored in its ivars
<benzrf>
so when considering whether to put something in an ivar or trust the user to provide it
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<benzrf>
consider how you would expect to use it if you didn't know the internal bits
<benzrf>
or what you would expect the object to know
<wallerdev>
+1
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<hfp>
Ah, I think I get it. If I set ivar in the initialize method, then the vars are passed when the object is created, as in `Foo = Bar.new(:a, :b, :c)`. Then I would have to turn these variables into ivars in the initialize method so other methods could be called as `Foo.coolmethod` rather than `Foo.coolmethid(:a, :b, :c)`, right?
<benzrf>
more or less
<benzrf>
any method can set ivars
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<hfp>
Ok it's just that once you set an ivar with a particular method then other methods can access it yes?
<benzrf>
yep
<benzrf>
if you think of an object as a little box with methods as levers on the outside, ivars are like a filing cabinet on the inside
<hfp>
If you don't then you have to pass the variables for every method every time
<benzrf>
right
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<benzrf>
if you don't store enough in ivars, you end up with a bunch of methods that might as well be global
<benzrf>
*dont store anything
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<benzrf>
if you store all data ever in ivars, the object becomes single-use and inflexible
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<benzrf>
try to strike a happy medium :)
<hfp>
Ok. Just one thing doesn't addup yet in my mind. In the eval.in I pasted, whether I use ivars or r, g and b in the brightness_index method doesn't seem to make any difference. I don't understand why.
<wallerdev>
trying to scam more people with your virus benzrf ?
<wallerdev>
we all know its a dogecoin mining program
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<LadyRainicorn>
DogeCoin.mkblock(reward: 10e20)
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<benzrf>
read the src
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<benzrf>
it's <300 lines
<benzrf>
so far
<benzrf>
also i refuse to touch dogecoin
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<benzrf>
if i dont use it i can pretend its not real
<benzrf>
LadyRainicorn: u cloned =3
<wallerdev>
im pretty sure flash player is a secret bitcoin miner, no other reason for using the cpu it does
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<hfp>
benzrf: so what I understand so far. The initialize method of a class is the once that receives the arguments when you call new(), right? And if you don't assign these arguments to ivars in initialize, then other methods can't access them. attr_reader allows you to access the values of the variables without writing a specific method, attr_* does it for you. Did I get everything ok?
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<LadyRainicorn>
benzrf: Why would you do that? Dogecoin is such wow!
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<LadyRainicorn>
VERY COIN SUCH WOW
<wallerdev>
sounds right to me
<LadyRainicorn>
much moneyz
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<benzrf>
hfp: almost
<wallerdev>
my 401k is in dogecoin
<CaptainJet>
conspiracy theory:
<benzrf>
hfp: you can read any ivar regardless of attr_*
<benzrf>
hfp: attr_* generates methods for accessing ivars
<CaptainJet>
ever since bitcoin was announced, adobe flash player was updated to mine from every user's computer
<CaptainJet>
adobe is now owner of 31% of the bitcoins in the world
<benzrf>
that way code outside of the object can see what's in ivars or set it
<hfp>
benzrf: so even without attr_* you can still call Foo.var and it will return whatever var is equal too within the object?
<wallerdev>
:p
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<benzrf>
hfp: no, that's what attr_* does
<benzrf>
but from _inside_ you can do @var regardless
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<LadyRainicorn>
With the competence of Flash, they are probably mining a private altcoin.
<LadyRainicorn>
It is one of my new favorite subreddits.
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<benzrf>
LadyRainicorn: try quick already >:o
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<benzrf>
LadyRainicorn: did u clone the repo
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<LadyRainicorn>
yes
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<benzrf>
k so bundle install o=
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<benzrf>
LadyRainicorn: ...any luck
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<LadyRainicorn>
Oh, what is it supposed to do exactly?
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<benzrf>
did the gems install?
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<benzrf>
LadyRainicorn: did the bundle install
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<LadyRainicorn>
What's brb and pry-remote-em for?
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<benzrf>
the former isnt used yet
<benzrf>
LadyRainicorn: the latter is for pry-remoting over emergion
<benzrf>
*EM
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<benzrf>
LadyRainicorn: if the bundle is installed u may proceed to 'cd lib/quick && mkdir quick_test && curl http://bpaste.net/raw/194161/ | ruby'
<LadyRainicorn>
Do you know about const_set?
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<benzrf>
no wait
<benzrf>
wrong link
<benzrf>
LadyRainicorn: yea
<benzrf>
why?
<benzrf>
w/e that link will work
<LadyRainicorn>
The first method defined is for setting constants.
<benzrf>
?
<benzrf>
in fs?
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<LadyRainicorn>
Yes.
<benzrf>
oh wait
<benzrf>
no these are constant methods
<LadyRainicorn>
And they're global constants too.
<benzrf>
no, they are not.
<LadyRainicorn>
oh nvm, just define is globalish
<benzrf>
;p
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<benzrf>
10:23 < benzrf> LadyRainicorn: if the bundle is installed u may proceed to 'cd lib/quick && mkdir quick_test && curl http://bpaste.net/raw/194161/ | ruby'
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<bline79_>
I need to capture multi-line output from IO.popen.. is this possible?
<LadyRainicorn>
Yes.
<kies>
LadyRainicorn, omg /r/lolphp is hilarious
<LadyRainicorn>
I know :3
<bline79_>
I'm having trouble figuring out how to pull that off
<benzrf>
LadyRainicorn: does it mount proply
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<LadyRainicorn>
I haven't gotten to installing FUSE yet.
<bline79_>
I mean. I run a command IO.open ("tsung-recorder start") for example.. I want to evaluate the second line that is returned from that command and run some regex on it
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<benzrf>
pfft
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<bline79_>
such a headache with this.. even io.popen hangs when I run my command.. in the cli, the command requires you to press return to get back to a usable shell
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<bline79_>
system runs it just fine, but it can't see the command output.. just returns bolean value
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<mikehaas763>
Hi, what's the difference between config.vm.network "private_network", ip: "192.168.33.10" and config.vm.network "private_network", :ip => "192.168.33.10"
<mikehaas763>
or will the 2nd one not even do what I want it to do
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<bline79_>
wow, a friend gave me a nice solution :)
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<arubin>
mikehaas763: ip: is shorhand for :ip =>
<mikehaas763>
So it represents the same type of data structure, just syntactic sugar? I'm not a ruby person, just haven't had the time
<arubin>
Yes.
<benzrf>
mikehaas763: yea
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<mikehaas763>
Well now I'm just curious, what's the use case for the lengthier one?
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<arubin>
mikehaas763: Hashes pairs are defined with key => value. Ruby 1.9 added sugar for keys that are symbols (:ip is a symbol).
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<arubin>
Using symbols as keys is common, and most people use the new syntax.
<benzrf>
mikehaas763: so if you wanted to use strings or numbers, you need to use =>
<benzrf>
{'foo' => 'bar'}
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<benzrf>
=> is sometimes known as a hash rocket
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<mikehaas763>
Ok. So in the reading I just did it seems like a symbol if it were compared to more traditional C like languages is sorta kinda like an enum?
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<benzrf>
basically
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<benzrf>
mikehaas763: the general idea is that sometimes you care about the actual contents of a string, and sometimes you just care what it's equal to
<benzrf>
i.e. like in an enum
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<benzrf>
in ruby, strings are mutable and non-interned (because mutable)
<benzrf>
symbols are internally represented as ints, and there's a lookup table for the textual representation of each number
<benzrf>
symbols are immutable and automatically interned
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<mikehaas763>
Cool, thanks for the knowledge. Unfortunately I can guarantee because of all I've got on my plate ATM I won't be able to start using ruby for at least a year. I got probably ~5 hours into ruby monk once upon a time but feel like I forgot everything since.
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<byprdct__>
.
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<juanmnl>
hello, anyone knows the channel for rails? #rubyonrails doesn't seem to work
<centrx>
juanmnl, You need register/identify your nick to enter #rubyonrails
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<anoldhacker>
Anyone here from the core team?
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<viscera>
this has probably been asked a million times, but why are #ruby and #ruby-lang two distinct channels instead of one forwarding to the other?
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<anoldhacker>
I would presume that #ruby-lang is oriented more towards language development.
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<anoldhacker>
I've posted a question to https://www.ruby-forum.com/topic/4484730. I would really appreciate it if someone familiar with ruby internals would answer.
<viscera>
that was my first thought, but there's nothing in the channel topics that indicates that. also, ruby-lang.org points to #ruby-lang as "a wonderful way to chat with fellow rubyists", yet #ruby is more popular
<agent_white>
^
<agent_white>
Kinda odd. I have no idea why they would split it up. We are cooler anyways.
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<viscera>
it's going to irk me, i guarantee it ;)
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<agent_white>
viscera: Largely though, lack-of-response is due to your timing joining the channel. It's bedtime for much of the US, and the Euro's don't hop on for another ~4 hours.
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<viscera>
agent_white: i haven't had a lack of response...
<agent_white>
viscera: Ohhh! Well then... I dunno!
<viscera>
i just noticed that both exist and are seeminly redundant
<viscera>
seemingly**
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<CaptainJet>
you could always just be in both irc channels
<CaptainJet>
like i am
<viscera>
that's what i'm doing
<CaptainJet>
makes it easier to time asking a question
<CaptainJet>
if one has people talking, use that one, if not, use #ruby
<CaptainJet>
i default to here over #ruby-lang
<viscera>
yeah, that's similar to what i do with debian channels (they're split over freenode and oftc networks)
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<sincereness>
If I have an array of elements how to i remove the doubles or tripes of a certain entires?
<sincereness>
elements*
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<agent_white>
sincereness: arr = arr.uniq!
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<agent_white>
sincereness: Though that will make sure ALL elements are unique.
<sincereness>
kk ill try it 1 sec
<agent_white>
sincereness: Rather, the assignment is not needed if you use the bang on the end. so either `arr = arr.uniq` or `arr.uniq!`
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<sincereness>
it worked when i did arr = arr.uniq but i cant append another method on that
<sincereness>
why?
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<sincereness>
for example arr.uniq.first throws method error
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<centrx>
sincereness, Is the array empty?
<centrx>
sincereness, Even if it's empty that shouldn't be an error. Show actual code
<sincereness>
no
<chichou>
even if the array is empty it should work
<sincereness>
ok
<sincereness>
gimmi a sec
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<chichou>
maybe you typed arr.uniq!.first ?
<chichou>
if arr is already uniq it returns nil
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<sincereness>
yea its late so ill fix it tomorrow lol
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<GreatSUN>
I just came across some problem I have in Ruby 1.9.3p429
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<GreatSUN>
in ruby 1.8 I wrote some class/module that helps to install/load gems
<GreatSUN>
it was working like a charm
<GreatSUN>
now, I am doing the same in ruby 1.9, but I experience problems
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<GreatSUN>
it seams the classes defined in the gems are not defined correctly
<GreatSUN>
any ideas why this could be?
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<agent_white>
!code
<agent_white>
GreatSUN: We need your code to help you.
<agent_white>
GreatSUN: 1.8 is ancient and unsupported... you should DEFINITELY update.
<agent_white>
Like.. 2.1.0-kinda update.
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<GreatSUN>
agent_white: This is where I am out... I am not able to change given ruby version on my own :-(
<GreatSUN>
agent_white: there is lots of code....
<agent_white>
GreatSUN: Something-something due to work? :/
<agent_white>
GreatSUN: And that LOTS of code should be updated!
<GreatSUN>
agent_white: yeah
<chichou>
updating from 1.8 to 2.1 isn't a little bit rude ? :)
<agent_white>
chichou: Being stuck in 1.8 is :(
<GreatSUN>
chichou: I would have said, that they should have been updating all the time
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<agent_white>
GreatSUN: Well... shit. You really should inform your peers that 1.8 is unsupported... not "stable"
<GreatSUN>
but the topic was and is kinda "never touch a running system"
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<agent_white>
:/
<GreatSUN>
agent_white: no problem about 1.8
<chichou>
no problem ? do you use unofficial patch ?
<GreatSUN>
agent_white: but the 1.9.3p429 is doing something I don't understand
<agent_white>
GreatSUN: Anyways! Just a note. But if you post your code, code since if it's changed since porting it to 1.9, and a full stack trace, someone can help you!
<GreatSUN>
chichou: I don't have a lot of problems with it, a lot of workarounds in place, yes...
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<GreatSUN>
agent_white: thats a really big thing then
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<agent_white>
GreatSUN: Yep! Otherwise, we can't help!
<GreatSUN>
agent_white: I thought there might be some logical thing begind
<GreatSUN>
behind
<GreatSUN>
something that someone else experienced
<chichou>
a lot of things changed from 1.8 to 1.9
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<GreatSUN>
agent_white: the thing is, that I just have problems with one gem atm...
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<GreatSUN>
chef
<agent_white>
GreatSUN: Well... you're basically saying "Hey! My knee hurts and I switched to Nike
<chichou>
chef support 1.8 ?
<agent_white>
"Can someone tell my why my knee hurts?!"
<agent_white>
GreatSUN: We just need code.
<agent_white>
to help you.
<GreatSUN>
and this seams to be cause it is loading sub-parts additionally, but ruby 1.9 loads everything again
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<GreatSUN>
and it has something like an Immutable class
<agent_white>
GreatSUN: Hold your breath until you have a gist with CODE for us, a STACK TRACE, and what you expect but are given.
<GreatSUN>
after this errors with a typeerror, it seams the gem is not in place correctly
<agent_white>
Otherwise, you are wasting your breath.
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<GreatSUN>
agent_white: I will try to create something more easy
<agent_white>
GreatSUN: Just make it reproduceable.
<GreatSUN>
cause if I just copy paste my code this is about 500 lines of code at least
<agent_white>
GreatSUN: Enough code to reproduce it will suffice.
<GreatSUN>
I bet
<agent_white>
GreatSUN: Anything less than that and we cannot help you.
<GreatSUN>
:D
<agent_white>
;)
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<Macaveli>
Morning Friends
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<chichou>
hi
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<maletor>
In Ruby, how do i double fork out of a process so I'm reparented to init?
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<chichou>
you mean as a daemon ?
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<maletor>
chichou: I want to run a process separate from my Ruby process so when I restart the other process it doesn't interfere. It doesn't necessarily have to run forever which is what daemons do, right?
<Hanmac1>
i think there is a gem for that called demonize or something similar
<chichou>
maybe Process.daemon can help you
<maletor>
chichou: I've been reading a little about it, but doesn't that daemonize the current process? I want a new process group.
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<maletor>
i.e. init
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<chichou>
daemon attach it to daemon group
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<chichou>
maletor: or system backgrounds or whatever, as far I understand
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<agent_white>
<GreatSUN>
agent_white: I just found the problem
<agent_white>
GreatSUN: Good to hear!
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<GreatSUN>
not really dependent to the ruby version, but a recent change that ruby 1.8 seams not to error on
<GreatSUN>
so it was a developer issue which didn't appear in ruby 1.8 :D
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<agent_white>
GreatSUN: :D Well make sure to prepare for the changes in 1.9, nonetheless.
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<GreatSUN>
agent_white: I am already
<agent_white>
Good deal :)
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<GreatSUN>
agent_white: the main things I am really disappointed of are in the gems
<GreatSUN>
for example the mysql gem
<GreatSUN>
(mysql2 for 1.9)
<GreatSUN>
some methods are just deleted
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<GreatSUN>
so you have to make a switch for the gem installation, requirement, the connection building and the query actions
<GreatSUN>
a lot of if's
<agent_white>
maletor: So you mean forking?
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<maletor>
agent_white: maybe?
<agent_white>
maletor: NVM. Didn't see your previous text.
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<GreatSUN>
chichou: different things... basic automation stuff is done via chef, then we have ruby scripts and self written libraries for a lot of things
<GreatSUN>
I myself am maintaining about 16.000 lines of code
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<chichou>
omg :)
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<chichou>
sometime it's easier to restart from scratch
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<GreatSUN>
chichou: it's not, there is a lot of different stuff... for example a mysql server installation cookbook
<GreatSUN>
the libraries that are helping a lot if it comes to different OS and stuff
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<chichou>
GreatSUN: but why do you want to do your switch stuff ? you want to keep code compatible with multiple versions of ruby ?
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<GreatSUN>
chichou: I have to, else I have to write and maintain two different versions and explain the users which version to use and stuff
<GreatSUN>
so that would be a lot of more work to do
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<chichou>
For that, I would use git and support branch for example
<chichou>
I mean, it's not your code responsibility to manage version but I guess it's much more complex in your project :)
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<GreatSUN>
chichou: yes, it is and there is lots of guys using the code that have no clue
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<GreatSUN>
that doesn't make things easier
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<pipework>
GreatSUN: What versions of ruby are you using?
<chichou>
good luck then, I wish I never have to work on some project like that :)
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<GreatSUN>
pipework: atm 1.8.7 and 1.9.3
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<pipework>
GreatSUN: oh my.
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<GreatSUN>
chichou: I wished I could work on some nice project as lead architect ;-)
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<GreatSUN>
chichou: Have been writing at least 7000 lines of code in the last 1 1/2 year
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<GreatSUN>
pipework: yes, please, give me sympathy
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<pipework>
You have a good amount of it.
<GreatSUN>
pipework: thanks :-)
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<shevy>
pipework please give me sympathy
<pipework>
shevy: I have no more to give.
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<harshada>
Hey Plz Help FileHandler.loadDataSet not reading string value from input file showing "NaN"
<harshada>
=> {0=>NaN, 1=>NaN, 2=>1234.0}
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<shevy>
harshada what is FileHandler
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<harshada>
@shevy: Actually Its in JRuby
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<Hanmac1>
harshada: first there is #jruby channel, second what do you got and what do you want? NaN as Float is valid or do you want "NaN" as String?
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<apeiros>
harshada: also note that "actually it's in jruby" does not answer the question of shevy.
<shevy>
harshada aha, can't help you there, I have only good old compiled-from-source mruby :)
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<pipework>
shevy: You use mruby?
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<pipework>
So when can we expect RubyOS?
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<shevy>
pipework mruby ain't finished
<pipework>
so?
<pipework>
Actually, it's reached 1.9
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<pipework>
1.0
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<harshada>
@shevy: I asked same que in jruby but no body response der so I asked here.. I am expecting output as => {0=>Harshada, 1=>Ghodke, 2=>1234.0}
<shevy>
pipework nah, it is far from complete anywhere near
<pipework>
shevy: It's 1.0
<toretore>
harshada: show code
<tobiasvl>
harshada: do you mean {0=>"Harshada", 1=>"Ghodke", 2=>1234.0} ?
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<shevy>
it's at about 0.0.2
<harshada>
tobiasvl: Yes
<tobiasvl>
you want to get strings, unless it's a float
<pipework>
shevy: It's as complete as it should be for a release.
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<Hanmac>
i made something similar to for as a statement modifier
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<rindolf>
apeiros: «for x in 1..10 { puts x }» ==> this does not appear to work either. Only «for x in 1..10 do puts x end»
<apeiros>
rindolf: so you discovered that your alternative syntax is not valid.
<apeiros>
rindolf: you might also go an search for how rubys syntax actually looks instead of randomly trying out ideas. just a suggestion.
<rindolf>
apeiros: I did, but I was under an impression that { ...} and do ... end were equivalent.
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<apeiros>
rindolf: they are - for blocks. for/in is not a method and does not take a block.
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<apeiros>
and most people use it without do
<apeiros>
same for while/until
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<rindolf>
apeiros: OK, thanks.
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<elementz>
Hi, I am having trouble understanding wether my javascript assets are properly loading when using sprockets.
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<elementz>
erm, wrong channel. sorry...
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<elementz>
I would like to run bower commands from within a rake task. How would I write a rake task which executes e.g. 'bower install'? I've tried like so http://sprunge.us/ZWEX . When running rake middleman:update I get the following error: "undefined local variable or method `clean' for main:Object"
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<elementz>
So I am obviously doing it wrong, but how would I run arbitrary commands from rake then?
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<canton7>
sh "arbitrary command"
<j416>
elementz: the Rakefile is ruby, so you can't just throw shell commands into it and assume them being run
<j416>
^
<canton7>
or system(), or exec(), or %x{..}, or `...`
<canton7>
sh is a method provided by rake which does some nice stuff iirc
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<j416>
nice stuff
<elementz>
canton7: good to know
<j416>
like run shell commands? w
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<elementz>
canton7: what about bundler commands? Would it be recommended to use 'sh' as well? Or would there be some method that I could run that would execute bundler tasks for me?
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<canton7>
bundler almost certainly exposes stuff for rake
<canton7>
let me have a look
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<canton7>
hmm, they mainly seem to be to do with building gems
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<elementz>
canton7: ok, I'll try via sh then. thx though
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<canton7>
to do a clean, try Bundler.load.clean ?
<canton7>
got that from trawling the sauce
<canton7>
probably safer to use sh though
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<elementz>
yep. sh is working fine.
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<AlexRussia>
hm
<AlexRussia>
someone know solution for it: i should in intaller some ruby program for windows(with included mri and some lib).its possible?
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<benzrf>
hows it going ruby users
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<benzrf>
hey
<benzrf>
is there any significant semantic difference between:
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<benzrf>
Object.new.extend(some_class)
<benzrf>
*module
<benzrf>
Class.new.include(some_module).new
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<apeiros>
benzrf: depends on what you consider significant :)
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<apeiros>
in both cases you will be able to use some_module's instance methods on the newly created object
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<rrios>
Hello. I was reading the inject documentation and it says that if "you do not explicitly specify an initial value for memo, then uses the first element of collection is used [sic] as the initial value of memo". But how do I specify an initial value for memo?
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<rrios>
inject, in the case, being a method from Enumerable
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<apeiros>
rrios: by passing it as the first argument
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<maasha>
hi
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<maasha>
O_o
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<maasha>
o_O
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<sprocket>
hello all
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<sprocket>
does anybody have any tips for debugging a SystemStackError (stack level too deep)?
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<sprocket>
i was in the process of upgrading a rails 2 application to rails 4, and this error's popped up when the .save! method is called on one of my active record models
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<apeiros>
benzrf: a) where the module ends up (class vs. singleton_class), b) the callback on the module (self.included vs. self.extended), c) the creation of a "throw-away" class
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<benzrf>
kk
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<spstarr_work>
Question: if I have a hash, say @myhash = { :city = "", :province = "" } and its inside a class, why doesn't ruby allow me to do this in a method in class: @myHash[:city] = "My New City" ?
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<spstarr_work>
since the hash is an instance variable of the class why doesn't that work?
* spstarr_work
is new to ruby
<spstarr_work>
so im trying to understand why this is complex to update a hash value
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<Mon_Ouie>
How does it not
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<Mon_Ouie>
How does it not work?*
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<spstarr_work>
undefined method `[]' for nil:NilClass (NoMethodError) is the error
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<shevy>
spstarr_work you dont have a hash there
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<spstarr_work>
shevy: er isn't that a hash with symbols w/ new style?
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<Mon_Ouie>
First you're not setting if you get that error, you're just getting
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<Mon_Ouie>
Oh, that's true, your syntax is wrong too, but that should even be a syntax error
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<shevy>
spstarr_work you assign a hash somewhere else, sure. but in your given object, you simply do not have a hash at all
<Mon_Ouie>
"Old" style is {:city => "", :province => ""}, new style is {city: "", province: ""}
<spstarr_work>
oh NO '='
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<spstarr_work>
@myHash = { city: "", ... }
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<spstarr_work>
i have it w/o equals though
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<Mon_Ouie>
And it says you're trying to call "[]" on nil, which means it hasn't been initialized the way you seem to expect it.
<Mon_Ouie>
Where is that line located, and where are you using it?
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<Mon_Ouie>
(where are you using the hash, I mean)
<spstarr_work>
oh in a method of this class
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<Mon_Ouie>
And where's @myHash = …?
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<spstarr_work>
in the class
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<Mon_Ouie>
Not in a method, in the class itself directly? i.e. class Foo; @myHash = …; end?
<spstarr_work>
class Foobar ---> @myHash = { city: "", .... } ............ end
<spstarr_work>
yes
<Mon_Ouie>
Yeah, that's your problem
<spstarr_work>
??
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<Mon_Ouie>
You should do initialization in the initialize method
<shevy>
spstarr_work who taught you to put the hash outside of a method?
<Mon_Ouie>
@foo = bar sets the instance variable called '@foo' of self to bar
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<spstarr_work>
shevy: just experimenting as i learn language
<Mon_Ouie>
But self within the class block is not an instance of the class, it is the class itself
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<shevy>
spstarr_work hmm but you must have read about @ivars somewhere
<spstarr_work>
so the hash should be just initialized as (0)
<Mon_Ouie>
(Also, that block is only ever run once, when you create the class)
<spstarr_work>
@myHash = Hash.new(0) ?
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<spstarr_work>
and then actually initialize it elsewhere?
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<spstarr_work>
well set the keys for it even
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<spstarr_work>
i thought you'd want to create the hash with keys but have no values
<Mon_Ouie>
Hm? You just need to put initialization code in the initialize method, which is run every time you create a new instance of your class
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<shevy>
spstarr_work you are making up things as you go :)
<spstarr_work>
yep
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<shevy>
for instance
<shevy>
why do you use Hash.new(0) suddenly
<spstarr_work>
yes it works if set in initialize()
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<spstarr_work>
but that seems different in structure
<shevy>
sure it's different now
<shevy>
you invoke it inside of a method now
<spstarr_work>
ive typically set instance variables *IN* the class outside of any constructor...
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<shevy>
no worries
<shevy>
we all do plenty of mistakes when we are young
<spstarr_work>
well to empty/null etc and any structs to null for the elements
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<spstarr_work>
so ruby seems to say no to this ;)
<spstarr_work>
well to hashes
<shevy>
of course it does
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<spstarr_work>
I mean this: class MyClass @myHash = { city: nil, province: nil, country: nil } ..................... end
<Mon_Ouie>
Your class itself *is* an object too, and by setting an ivar within the class block, you set an ivar of the class itself
<shevy>
god
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<shevy>
why are you again doing this outside of a method
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<spstarr_work>
because you can set instance variables like this and it works?
<spstarr_work>
@myVariable = nil
<shevy>
didn't we correct your earlier mistake already?
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<shevy>
now you just repeat what we corrected already :(
<Mon_Ouie>
It's hard to tell the difference between @foo = nil and doing nothing
<spstarr_work>
so you should *not* put instance variables of any kind in the class body but in initialize() only
<shevy>
learning progress: 0%
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<shevy>
you can of course
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<shevy>
but it works on the class instance
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<DouweM>
spstarr_work: it's no "you should not", it just doesn't do what you think it does
<Mon_Ouie>
Because if you try and read an ivar that hasn't been set before it just evaluates to nil
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<benzrf>
Mon_Ouie: oh hey didnt you make pry-remote-em?
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<benzrf>
or was it just pry-remote?
<Mon_Ouie>
benzrf: Nope, just pry-remote
<shevy>
spstarr_work think of it this way - you want your object to have certain values stored in @ivars, ok? so for this, you use these only inside of methods, ok?
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<benzrf>
hmmm
<spstarr_work>
yes
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<shevy>
the first method that will be called for you to use or change is the initialize() method, when an object is instantiated via .new
<spstarr_work>
and to me anything in the class body with @ is an @ivar so 'logically' I thought ruby would accept variable definitions
<shevy>
I usually have as one of the first methods one called reset(), which resets the object, but also initializes it
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<Mon_Ouie>
>> class Foo; @foo = 3; end; Foo.instance_variables
<spstarr_work>
(why didn't we just use a different symbol for that!)
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<shevy>
spstarr_work, class Foo; @bla = x; end <--- is very rarely used, it is not very useful
<DouweM>
spstarr_work: it's similar to what's called static in other languages, I guess
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<spstarr_work>
!!!!
<DouweM>
spstarr_work: why would we? Foo and Foo.new re both objects
<Mon_Ouie>
Also what do you call "class instance variable"? Because a class instance variable in Ruby is the instance variable of a class itself, i.e. @foo = 3 (and not @foo = 10) in your example
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<spstarr_work>
Mon: self
<DouweM>
classes aren't some special construct in Ruby, they're interfaced with just like objects.
<spstarr_work>
'this'
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<shevy>
spstarr_work ok but self depends on the context too
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<DouweM>
they are of course special, but you can work with them like objects
<spstarr_work>
for each Foo instance you have a variable 'foo' which has a value per instance but separate
<apeiros>
shevy: I use class Foo; @bla = x; end quite often
<DouweM>
right
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<apeiros>
shevy: and I find it very useful
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<shevy>
apeiros what for
<DouweM>
and because what you refer to as Foo is just an instance of the Class class, it can have instance variables as well
<apeiros>
most often, multiton patterns and config
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<spstarr_work>
right, but in every single language ive used, class Foo; @myInstanceVariable = 100; end ........... puts Foo.instance_variable_get(:@myInstanceVariable) 'should' print 100
<DouweM>
which it does
<shevy>
hehehe
<DouweM>
>> class Foo; @myInstanceVariable = 100; end; Foo.instance_variable_get(:@myInstanceVariable)
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<DouweM>
spstarr_work: now you're calling a method called `myInstanceVariable=`.
<shevy>
spstarr_work that is just a method
<DouweM>
spstarr_work: but @ does indeed work on self
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<shevy>
spstarr_work you just called it myInstanceVariable :)
<shevy>
def this_is_not_a_method
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<etqqkoiflwhb>
shevy: oh, isn;t it implicity passed as a method parameter?
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<etqqkoiflwhb>
implicitly*
<spstarr_work>
ok so thats very pythonisk
<shevy>
etqqkoiflwhb I don't know how it works internally
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<shevy>
some C guru can explain
<DouweM>
etqqkoiflwhb: that would still make it a keyword
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<spstarr_work>
but in python self.foobar may refer to a method or variable instance
<spstarr_work>
of the instance of a class
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<spstarr_work>
'this'
<shevy>
what do you mean with "refer"?
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<shevy>
in ruby you could return an @ivar or whatever another method returns
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<DouweM>
spstarr_work: you understand that `Foo` is an object just like some var `foo`? You understand that `self` is the class within the class def, and an instance within the methods? You understand that @ refers to that same `self`? You understand that any object can have ivars, and that because classes are objects too, so can they?
<DouweM>
If you understand all that, I don't see where any remaining confusion comes from
<shevy>
you can use class methods too, Foo.bla()
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<shevy>
DouweM did you not say before that he is confused? :P
<spstarr_work>
I know that 'self' means 'this' or the current instance that is instantiated from a Foo object
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<shevy>
why does it have to be instantiated
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<DouweM>
self just refers to the current context. it needs to be an object, which the class Foo is an example of
<spstarr_work>
if its not then its a static class
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<spstarr_work>
right
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<DouweM>
there's no "static" in Ruby
<shevy>
hehe
<DouweM>
there's just methods on objects
<shevy>
he likes the word
<DouweM>
a class method on a class is just a method on an object
<spstarr_work>
i come from a C world in past
<DouweM>
because the class is an object
<shevy>
it is hard coded in his neuronal CPU
<DouweM>
I know C, forget everything you know about C :P
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<spstarr_work>
hehe
<DouweM>
You don't need no stinking static keyword
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<DouweM>
classes are objects
<DouweM>
methods are methods
<shevy>
DouweM is a class in ruby static?
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<DouweM>
nah
<shevy>
if he does not understand us
<spstarr_work>
so then what is this called:
<shevy>
we will try to understand him
<DouweM>
shevy: you know what static methods are?
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<DouweM>
benzrf: you're aware that a lot of people have trouble understanding singleton classes, *especially* when they're just starting out with Ruby? :p
<shevy>
who mentioned singletons first anyway
<DouweM>
+1 shevy
<DouweM>
fucken benzrf
<spstarr_work>
class Foo; def Foo.myclassInstanceMethod end; end; ... Foo.myclassInstanceMethod ?
<spstarr_work>
or no
<benzrf>
spstarr_work: yes
<spstarr_work>
ooh
<shevy>
<spstarr_work> static == singleton class really
<DouweM>
spstarr_work: sure, but you could also use self. here
<shevy>
aha!
<benzrf>
spstarr_work: every object has its own special class separate from every other object's class
<DouweM>
shevy: but it's not!
<shevy>
spstarr_work was the first to mention singletons!
<spstarr_work>
or def self.myclassInstanceMethod ?
<spstarr_work>
same thing in this aspect ?
<shevy>
so he confused himself
<DouweM>
spstarr_work: either, because self == Foo at that point
<DouweM>
shevy: a skill I admire
* spstarr_work
smile
<shevy>
DouweM lol
<benzrf>
spstarr_work: when you say that foo is an instance of string, what you really mean is that foo is an instance of its own unique class that is a subclass of string
<benzrf>
spstarr_work: this lets objects have their own methods that other objects 'of the same class' dont
<benzrf>
spstarr_work: like a 'baz' method on only oen string
<benzrf>
*one
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<shevy>
btw spstarr_work are you at work?
<spstarr_work>
yes and about to get lunch ;)
<shevy>
ah ok
<benzrf>
spstarr_work: def foo.bar is defining bar in foo's 'real' class, which is a subclass of String
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<DouweM>
shevy: good question
<shevy>
DouweM I just thought he has enough time to learn ruby at work, that would be quite a feat
<benzrf>
spstarr_work: in a class block, 'self' is the class
<shevy>
I never have enough time for anything at work :(
<spstarr_work>
benzrf: right for the singleton class of 'foo' only
<benzrf>
right
<spstarr_work>
an INSTANCE of foo would not have bar() as a method
<benzrf>
spstarr_work: so 'def self.something' defines the method 'something' on the singleton class of self, which is the class you're writing
<spstarr_work>
only the singleton ('static') class
* spstarr_work
runs
<spstarr_work>
'static :D
<spstarr_work>
i have static shock
<DouweM>
nonono
<benzrf>
never use static when talking about ruby
<DouweM>
lose hat
<DouweM>
eh
<benzrf>
it has nothing to do with anything
<DouweM>
*that
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<DouweM>
static != singleton
<benzrf>
and nothing in ruby is like static in java
<DouweM>
static isn't a thing in Ruby
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<benzrf>
lose the comparison o-o
<DouweM>
look what you've done, you broke him :(
<shevy>
damn it
<benzrf>
oh nooo
<shevy>
he uses the old word again
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<DouweM>
yeah all our hard work
* DouweM
hold shevy and sobs
<spstarr_work>
ok so let me ask you this
<benzrf>
spstarr_work: rubies are not like coffee
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<spstarr_work>
why is singleton != static in ruby?
<mrgoodcat>
is rubygems.org broken right now? or does it frequently slow down?
<shevy>
!!!
<benzrf>
spstarr_work: they aren't related
<DouweM>
spstarr_work: there's no static in ruby
<shevy>
lol
<benzrf>
spstarr_work: that's like asking why isn't def like class
<benzrf>
they're just
<spstarr_work>
benzrf: what do you mean 'not related'
<DouweM>
spstarr_work: singleton class is a whole different concept
<benzrf>
different things
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<benzrf>
there's no reason why they SHOULD be related
<benzrf>
they have nothing to do with each other
<shevy>
spstarr_work singleton is unique
<spstarr_work>
but outside of ruby singleton == static is it not or am I mixing up something altogether?
<benzrf>
no
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<DouweM>
mixups all around
<shevy>
what is the difference
<benzrf>
spstarr_work: a singleton class is just a class for a specific object
<benzrf>
instead of a group of objects
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<spstarr_work>
benzrf: right but a singleton is a class for when the class has NO instances
<DouweM>
NO
<benzrf>
no
<spstarr_work>
??
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<benzrf>
11:20 < benzrf> spstarr_work: a singleton class is just a class for a specific object
<DouweM>
let's forget singleton classes for now...
<benzrf>
11:20 < benzrf> instead of a group of objects
<benzrf>
any object in ruby has its own class that no other object has
<benzrf>
every string is actually an instance of a special unique class just for that string
<DouweM>
I know experienced Ruby devs who have a hard time wrapping their head around the subject
<benzrf>
which is a subclass of String
<DouweM>
he really doesn't need to know that at this point
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<benzrf>
kk
<DouweM>
spstarr_work: are you clear on the ivar thing from before?
<spstarr_work>
yes i have that working in my test code ;)
<DouweM>
spstarr_work: do you understand that a class is just another object?
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<DouweM>
spstarr_work: an instance of Class, to be precise
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<bilbo_swaggins>
So what is it called when I do
<spstarr_work>
DouweM: an instance of a Class or of Class?
<DouweM>
spstarr_work: well, if you have any other questions on that, let us know. if you feel comfortable dealing with the class hierarchy stuff in Ruby, come back for benzrf's class on singleton classes
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<bilbo_swaggins>
class Foo; def self.bar; :baz; end; end; Foo.bar
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<bilbo_swaggins>
>> class Foo; def self.bar; :baz; end; end; Foo.bar
<benzrf>
bilbo_bbl: haskell is fun the same way abstract math is fun
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<benzrf>
bilbo_bbl: do u like abstract math
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<DouweM>
anoldhacker: why do you think you need to override it?
<benzrf>
:-D
<DouweM>
anoldhacker: just leave it alone and come back when it gives you trouble
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<DouweM>
which it probably won't
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<benzrf>
anoldhacker: i keep reading ur nick as 'arnoldhacker'
<bilbo_bbl>
thanks benzrf.
<DouweM>
me too
<bilbo_bbl>
bbl
<anoldhacker>
:P
<freeone3000>
In a ruby script, Net::SSH.start() throws Errno::ETIMEDOUT, while in irb, with the same arguments, it does not. What is the difference?
<benzrf>
anoldhacker: maybe make it an_old_hacker
<bilbo_bbl>
benzrf: I loved discrete math
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<benzrf>
freeone3000: the rest of the script
<benzrf>
bilbo_bbl: learn haskell
<bilbo_bbl>
calculus I was always too lazy to get into
<benzrf>
it will explode your braincrash
<benzrf>
*brain
<bilbo_bbl>
but I've been more interested in lately
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<benzrf>
it has static typing but it doesnt suck
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<freeone3000>
benzrf: That's an oddly specific error for some random line a few dozen lines up to interfere, especially with this being the first invocation of Net::SSH.
<bilbo_bbl>
Ruby is the most typed untyped language ever
<benzrf>
bilbo_bbl: 90% of errors in haskell are type errors
<anoldhacker>
There are times to wait & see & times to aggressively chase corner cases. Something weird like trying to add DCI to a language feels very much like a time to chase corner cases to me.
<bilbo_bbl>
I could stand some inferred static typing
<benzrf>
bilbo_bbl: haskell has nearly perfect inference
<benzrf>
:-D
<bilbo_bbl>
Most of my Ruby bugs are type errors
<benzrf>
it's good practice to write the types of top-level functions, but everything else is normally inferred
<DouweM>
anoldhacker: :) I've warned you, I'd stay away from __ methods. But hey, try it and maybe you won't crash and burn
<bilbo_bbl>
or, sorry, "class" errors
<benzrf>
bilbo_bbl: haskell has higher-order functions out the wazoo
<bilbo_bbl>
sweet
<benzrf>
your wazoo will be full of functions
<benzrf>
do you want this y/n
<bilbo_bbl>
I don't know
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<benzrf>
replicate <$> readLn <*> pure 'y'
<benzrf>
Prelude Control.Applicative> replicate <$> readLn <*> pure 'y'
<benzrf>
35
<benzrf>
"yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy"
<spstarr_work>
food == good
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<shlant>
basically I want to be able to handle no key, single key value and multiple key value
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<shlant>
in reference to up/down
<spstarr_work>
benzrf|offline: hehe
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<bklane>
I am using a phantomjs gem for scraping and keep getting the error: 'OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=SSLv3 read finished A: decryption failed or bad record mac', anyone know how to solve it?
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<bklane>
I'm hosting on heroku, (unsure if that makes a difference)
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<xybre>
bklane: HAve you checked to see what the input its processing is?
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<bklane>
xybre: yup, im scraping something thats identical for each page, on a single domain yet it will randomly run that error when the jobs are being processed in DelayedJobs
<bklane>
I just re-run the jobs and they will process but want to try to stop it from happening to begin with
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<sabooky>
If I have a method that takes arguments and a block, is there a way to pass the block using curly braces on one line?
<sabooky>
my_method arg1, arg2, {my block}
<xybre>
bklane: Basically what I'm asking is that since its an SSL decryption error, maybe you're not getting the payload you expect, so you should look at the raw payload.
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<sabooky>
Or do i have to use do/end syntax
<xybre>
sabooky: Yeah, but you have to use parens.
<sabooky>
xybre: Thanks, yeah that worked. Had a brain glitch since it was a ruby dsl. Thanks!
<bklane>
xybre: yup thats the problem, the site redirects to https and when i do a request with https it works fine but on the http request it sometimes fails
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<bklane>
thank you
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<xybre>
bklane: :D
<xybre>
sabooky: Its all good :)
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<havenwood>
f0ster: File.delete '-rf ~'
<havenwood>
:P
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<f0ster>
haha, from ruby
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<RubyPanther>
I was building mruby for android yesterday and the android toolchain did indeed take a ~ literally, and created a dir called ~ in the localdir, I just took a deep breath and said rm -rf ./\~
<f0ster>
and that worked?
<RubyPanther>
yeah, the ./ is probably not needed but I wanted to protect myself from my own mistakes ;)
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<matti>
RubyPanther: And then you by accident made space between . and /
<matti>
;]
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<RubyPanther>
matti: mistakes can be deadly, I did stare at the screen for a few seconds before pressing enter
<matti>
;]
<matti>
I am sure you did.
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<RubyPanther>
What is worse on a new sysadmin is creating too many files in a dir for bash to list, because it breaks rm using wildcards
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<RubyPanther>
you can still delete them with a glob... using Ruby (or Perl)
<matti>
RubyPanther: Or using find, or using xargs.
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<RubyPanther>
xargs is less help unless you're also using find because you can't give ls a glob, bash still has to handle the args
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<RubyPanther>
They should succeed, but they'll probably also cry and worry they picked the wrong new job ;)
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<matti>
Its actually more fun to see a developer who is trying to troubleshoot issues on Linux box.
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<RubyPanther>
Well, in that case you might stump them and waste a whole week
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<matti>
Indeed
<matti>
;]
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<RubyPanther>
You can probably do that much damage just with a carefully exported env var
<matti>
RubyPanther: Interesting would be also: make wchar literal file name and then flip back to LA_ALL/LANG = C
<matti>
RubyPanther: And ask people to remove it ;]
<apeiros>
I guess you meant MyClass.instance_variable_get(:@aHash)[:company]
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<spstarr_work>
ahh
<spstarr_work>
interesting
<apeiros>
also, probably rather an_instance_of_my_class.instance_variable_get…
<DouweM>
spstarr_work: `:@aHash` is just a symbol argument to instance_variable_get, which will have it looked up the ivar by that name and return it
<apeiros>
(it's possible on the class too, but much less likely that that's what you actually want)
<DouweM>
spstarr_work: on that returned ivar value, the Hash in this case, you can call the :company lookup
<spstarr_work>
yeah that works
<spstarr_work>
interesting
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<DouweM>
apeiros: this is related to what we were talking about with spstarr_work earlier today. he was actually looking for an ivar on the class then :)
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<apeiros>
ok
<spstarr_work>
DouweM: that is interesting
<spstarr_work>
so could you set the ivar of a class within a method?
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<spstarr_work>
@myHash[:company] = "Foobar" <-- set an instantiated instance variable myHash's w/ symbol company value Foobar
<DouweM>
spstarr_work: sure: `self.class.instance_variable_set(:@ivar_name, "value")` but don't do that :P
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<spstarr_work>
DouweM: i mean within an instantiated class method though
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<DouweM>
spstarr_work: you can't directly access any object's instance variables, so not your class's either
<spstarr_work>
I See, only via the approach you list above
<DouweM>
spstarr_work: if you want your instances to read one of their class's instance variables, use a getter method
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<spstarr_work>
or via a setter/getter method within the class
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<spstarr_work>
ya
<DouweM>
yup :)
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* spstarr_work
is building up various examples so i can see how ruby does things
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<spstarr_work>
ie
<spstarr_work>
def self.classInstanceMethod return "Only available as class method, singleton" end
<spstarr_work>
puts MyClass.classInstanceMethod()
<DouweM>
spstarr_work: side note: teach yourself now to use snake_case rather than camelCase
<DouweM>
for methods and variables that is
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<DouweM>
classes are still CamelCase
<sigurding>
short question: if I execute “bundle exec monitoring” I get a /forwardable.rb:186: stack level too deep (SystemStackError). Aborting with STRG + C shows me: https://gist.github.com/jhiemer/2a223fcd419b22a3cb44. Anyone has an idea?
<spstarr_work>
i noticed Ruby enforces CamelCase
<spstarr_work>
for ClassName
<DouweM>
and drop the () at the end of that method. No args, no parentheses
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<spstarr_work>
thats a habit that dies hard :)
<spstarr_work>
()
<DouweM>
spstarr_work: it needs to have a capital initial letter, but the rest can be as ugly as you like
<Senjai>
spstarr_work: Sorry? You can do Classname if you really wanted.
<spstarr_work>
sure
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<spstarr_work>
but 'C'
<Senjai>
Thats not camel case
<Senjai>
thats capitalization.
<Burgestrand>
sigurding: is monitoring trying to load monitoring?
<DouweM>
constants need a capital letter, and a classname is a constant
<spstarr_work>
DouweM: that explained the error ruby told me
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<spstarr_work>
i always kept () at end of methods to indicate it is a method
<Senjai>
I mean afaik you could do something like: my_class = Class.new do ... end
<Senjai>
my_class.new
<spstarr_work>
not a variable
<Senjai>
but thats not a good idea
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<Senjai>
spstarr_work: You should look up the ruby style guide on github
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<Burgestrand>
sigurding: it’s not a lot to go on, but chances are that the generated file from bundler is not at fault, but the actual ruby script being executed by that load
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<Senjai>
spstarr_work: Everything in ruby is an object. So there is no reason to differentiate a "variable" from a "method"
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<Senjai>
spstarr_work: my_class is an object that takes no arguments. my_class(thing) is an object that takes one argument
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<sigurding>
Burgestrand: I am able to run the execution script via ruby monitor.rb without any issue
<DouweM>
Senjai: I wouldn't go mixing objects with variables with methods
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<spstarr_work>
Senjai: I guess thats the confusion Im trying to unconfuse
<Burgestrand>
sigurding: perhaps spelunking would be a good idea. If you replace the “load” at line 16 in that file with “puts”, should give you a hint of what file it is trying to load.
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<spstarr_work>
I mean I get that "foo bar".length()
<Senjai>
DouweM: Well, a variable in ruby is something =
<spstarr_work>
literal string is an object too
<Senjai>
something="hello"
<Senjai>
something is an object and a variable
<Burgestrand>
sigurding: (and run it again, of course, to have it print the file path)
<spstarr_work>
or 100.repeat(100)
<Senjai>
all variables in ruby are objects
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<DouweM>
variables refer to objects, the variable itself isn't an object :/
<DouweM>
methods aren't objects either
<Burgestrand>
sigurding: I am *guessing* that the path resolves to the same file, and if that is the case the reason is probably has to do with something else in your setup
<DouweM>
they're, well, methods
<sigurding>
Burgestrand: it references to itself
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<spstarr_work>
Senjai: but for code legibility
<Senjai>
DouweM: "hello".class ?
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<Senjai>
DouweM: All methods return objects
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<DouweM>
that's not the same thing
<DouweM>
not trying to be pedantic, but you confused me
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<Burgestrand>
sigurding: some more context is necessary :)
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<Senjai>
DouweM: Right, but for the sake of getting used to ruby, you can make that assumption
<spstarr_work>
seeing myClass.getThisString (while the name of the method may imply its a method or if ruby does like C++ does and denotes m_methodName)
<sigurding>
Burgestrand: ok, wait a sec
<Senjai>
DouweM: Given that a method in ruby will always return an object
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<DouweM>
Senjai: sure, but I'd make that distinction. a lot of things *are* objects, but not everything in the language syntax is
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<DouweM>
spstarr_work: is that a question?
<spstarr_work>
DouweM: yea
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<Senjai>
DouweM: A method is a block of reuseable code that always returns an object
<Burgestrand>
DouweM: do you have an example of that? I don’t disagree, I’m just curious about which kind of semantics you two are discussing.
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<DouweM>
Burgestrand: I was responding to Senjai's "spstarr_work: Everything in ruby is an object. So there is no reason to differentiate a "variable" from a "method"" and "spstarr_work: my_class is an object that takes no arguments. my_class(thing) is an object that takes one argument"
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<DouweM>
Burgestrand: IMO those statements only make things more confusing to someone trying to wrap their head around Ruby syntax en semantics
<Senjai>
There is no reason to differentiate a method from a variable as a user, because they will both always return objects
<sigurding>
I updated it with all relevant information regarding bundler
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<Burgestrand>
I suppose a more correct way of saying it is: all expressions in ruby return an object
<spstarr_work>
Senjai: they might but visually looking at code
<Mon_Ouie>
Senjai: You can't assign a method to something. That makes them very different already.
<DouweM>
Burgestrand: +1
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<Mon_Ouie>
Also variables are lexically scoped, methods are dynamically scoped
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<Burgestrand>
sigurding: ah, you have a binstub for a gem you are actively developing?
<sigurding>
Burgestrand: yes!
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<DouweM>
spstarr_work: got a specific question?
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<spstarr_work>
DouweM: none right now, more experimenting :)
<Burgestrand>
sigurding: I’m not sure you’re intended to have a binstub for the same gem you’re developing, but I would say it’s enough to warrant a visit to the bundler issue tracker / IRC (if there is one) or similar. Why do you have a binstub for the project you are currently working on? ^^
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<spstarr_work>
mixed up my plicits
<spstarr_work>
:P
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<Burgestrand>
sigurding: I’ll have a quick read, see if I can follow :)
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<Burgestrand>
sigurding: I can’t see anything about binstubs in it though!
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<sigurding>
Burgestrand: ok, perhaps I need to ask something: where to you see the binstubs etc?
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<Burgestrand>
sigurding: by binstubs I refer to the generated file by bundler (the one that contained “load Gem…”). Those files are generally generated using bundler when working in projects to ensure that when you type “some_command”, that “some_command” loads the right version of the gem from the start. Because you had such a file (that is causing the loading of itself), I assume that you’ve at some point generated binstubs using
<Burgestrand>
the bundler command
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<Burgestrand>
sigurding: i.e. something like “bundle install --binstubs”
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<sigurding>
Burgestrand: yes correct
<Burgestrand>
sigurding: doing the same with a new imaginary gem to try to get a feeling for what I should tell you to do ;)
<Burgestrand>
(I am doing the same…)
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<Burgestrand>
sigurding: how are you executing the “monitoring” command, and from which folder?
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<sigurding>
Burgestrand: I am executing from the project base dir
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<Burgestrand>
sigurding: alright! So you want your gem to install a command “monitoring” when somebody installs your gem?
<sigurding>
an in this directory I am starting it via “bundle exec monitoring”
<sigurding>
Burgestrand: exactly, this should be the project to executre
<sigurding>
execute
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<Burgestrand>
sigurding: alright, I don’t think you should be using binstubs for this development. You can stop bundler from creating binstubs every time you do “bundle install” if you edit the file “.bundle/config” and remove the BUNDLE_BIN line
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<Burgestrand>
sigurding: next up after that is removing all stuff inside your_gem/bin, except the “monitoring” file, which is the one where you should write your command code
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<sigurding>
Burgestrand: all done!
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<Burgestrand>
sigurding: finally, you should make sure your command file is executable by doing “chmod +x bin/monitoring”
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<Burgestrand>
sigurding: and at the top of the file, it is good practice to write the line “#!/usr/bin/env ruby”, which will use the current ruby from the environment if nothing else is specified somewhere else (for example, if your users are using bundler)
<sigurding>
Burgestrand: ok done!
<sigurding>
would you not recommend to use bundler?
<Burgestrand>
sigurding: you should can use bundler, but only for things that bundler should be used for :)
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<Burgestrand>
sigurding: when you do “bundle install --binstubs”, bundler will overwrite bin/monitoring with a bundler-generated file
<sigurding>
Burgestrand: ok, and that’s something bundler should not be used for?
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<spstarr_work>
ah
<spstarr_work>
@@
<Burgestrand>
sigurding: and if bundler overwrites bin/monitoring with it’s own file, you cannot place *your* code in it, because it will always be overwritten
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<spstarr_work>
class variables
<Burgestrand>
spstarr_work: be careful with those
<benzrf>
hej da
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<Burgestrand>
spstarr_work: they are inherited :)
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<benzrf>
spstarr_work: they have weird semantics that may be confusing at first
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<spstarr_work>
Burgestrand: even singletons?
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<Burgestrand>
spstarr_work: you can use regular @variables in the class scope as well
<spstarr_work>
yes
<Burgestrand>
spstarr_work: most of the time, that is also what you should be using ;)
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<Burgestrand>
spstarr_work: I will give you an example with your singleton
<spstarr_work>
but i thought class variables were of scope at the class level like self.myMethod being a class method
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<sigurding>
Burgestrand: did all the stuff, but still getting the error
<Burgestrand>
sigurding: main interesting code is in bin/custom_command
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<Burgestrand>
sigurding: when users install that gem, they will have the custom_command command available
<Burgestrand>
sigurding: during development, to test it out yourself, you can use “bundle exec bin/custom_command”
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<sigurding>
Burgestrand: thx, I will try it myself :)
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<sigurding>
need to grab some food and a take a deeper look a it
<sigurding>
*at
<Burgestrand>
sigurding: I will go to the store real quick (5 min), but I’ll be here :)
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<sigurding>
Burgestrand: great! thx a lot for your patience
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<shevy>
test
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<alexblackie>
yep
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<renier>
hey, looking for comments on this. https://gist.github.com/renier/9815009 Is there a better way to pick up files for rake package? Also, can the loop be better? Thanks!
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<Burgestrand>
renier: bundler uses git to list files. I’m not sure I think it’s a better way; it can be annoying at times, but I wanted to let you know that’s how they do it.
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<Burgestrand>
renier: that way they can avoid the need to parse the .gitignore, and their way also respects the global .gitignore file.
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<renier>
Burgestrand, good point. thanks. they use git ls-files
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<renier>
Burgestrand, hey, so since my gemspec already uses the git method for filling out the files attribute, I can use spec.files and that's it
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<renier>
saves a lot of code. thx for the pointer
<Burgestrand>
renier: :)
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<spstarr_work>
nice
<spstarr_work>
so just like python i can do crazy things...
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<spstarr_work>
shevy: what?
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<spstarr_work>
:(
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<RubyPanther>
They are assumed to exist, but Rubyists are smart enough to choose a quality API
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<RubyPanther>
So nobody really knows for sure
* spstarr_work
snickers
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<shevy>
spstarr_work it was rdale, he even was on freenode irc
<shevy>
#qtruby still exists
<shevy>
qtruby looked much better than ruby-gnome too
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<shevy>
but without a developer, it is dead
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<spstarr_work>
hmm
<pipework>
Unless somehow they wrote it in a way that's actually fairly complete.
<shevy>
the best would be to use an agnostic UI though
* spstarr_work
prepares to go $HOME
<pipework>
spstarr_work: ::1?
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<AlexRussia>
hi people!
<AlexRussia>
I again should in your help!
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<shevy>
please no
<AlexRussia>
okay, target in it: i get big text, included some vcards....
<AlexRussia>
shevy: ???
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<AlexRussia>
question: how diffrent text to parts, if i know some string-diffrent?
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<toretore>
lol
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<AlexRussia>
maybe, some method for it....i don't have make own for and some tricks
<jhass>
I think he want's to extract vcards from a textblob
<toretore>
AlexRussia: show some code perhaps?
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<jhass>
AlexRussia: can you provide example input?
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<toretore>
code > words
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<AlexRussia>
jhass: i want diffrent text by some key.....to parts
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<jhass>
AlexRussia: provide example input and expected output at least
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<toretore>
AlexRussia: explain with code and data
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<AlexRussia>
jhass: you want see my now code?
<AlexRussia>
jhass: and example data input?
<jhass>
that and what you expect to have, for example the result array you would like to have
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<AlexRussia>
jhass: now i get one string and using it like data, but i should in some string, where included not one data, should diffrent it, yah, i think, diffrent to array by data.
<AlexRussia>
jhass: shevy like it, ofc, is example :P
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<toretore>
it's obvious you're trying to process a bunch of vcard files, extract a phone number and put the numbers into a new file
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<AlexRussia>
toretore: toooo right
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<toretore>
but i don't understand what you're asking about
<AlexRussia>
toretore: is for my some friend....
<toretore>
try explaining with code instead
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<toretore>
code is much easier to understand
<AlexRussia>
toretore: oh....every vrards concatenated in ONE file.But vcardigan unsupport this style, i think
<toretore>
you want to have one file with multiple vcards in it?
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<AlexRussia>
toretore: one file with ultiple vcards is like input....
<jhass>
I think he has that and wants to parse it
<AlexRussia>
multiple*
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<shevy>
lol
<AlexRussia>
jhass: yah, parse by vcards for using it in vcardigan
<shevy>
AlexRussia, write in simple english.
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<AlexRussia>
shevy: O_O, i write in RUSSIAN english :P
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<droptone>
Question: I have a hash and I want to set a value to the sum of two strings, with a space in between. For example, MyHash = { 'Value1" => AnotherVar["Address1"] + " " + AnotherVar["Address2"] }
<shevy>
yeah, that is bad, the way to think in russian is different to writing in english, it's like matz speaking english while he continues to think in japanese
<droptone>
What would the proper syntax be for that statement?
<AlexRussia>
jhass: we parsing by 'END:VCARD', in file 2 vcards, but in each 3!
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<AlexRussia>
jhass: lulz-lulz
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<AlexRussia>
jhass: don't worry, if vcard.tlf fix it
<AlexRussia>
'if vcard.tlf'
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certainty is now known as certainty|vacati
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<AlexRussia>
File.exist?(file_name) returned bool, true if file exist, else false
<AlexRussia>
?
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<jhass>
it does that, yes
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<shevy>
AlexRussia seems logical, doesn't it? :)
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<jhass>
probably not in russian english shevy
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<shevy>
lol
<shevy>
AlexRussia what is "logical" in russian?
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<AlexRussia>
shevy: logical?O_O you about boolean?
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<shevy>
AlexRussia no, the russian word
<Authenticator>
Is there a way to stop SimpleCov from reporting for a given process? It's failing my forking tests when I run them with coverage on. I'm already setting a CommandName based on the PID...
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<AlexRussia>
shevy: логический
<shevy>
I cant read that
<shevy>
ес
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<lapinferoce>
join #github
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<sigurding>
what are alternatives to bundler?
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<centrx>
sigurding, To do what?
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<sigurding>
centrx: I am trying to build an executable gem, which should automatically load all dependencies, when it’s installed
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<sigurding>
jhass: ok so the gemspec files is enough to resolve the dependencies during install?
<jhass>
yes
<sigurding>
jhass: sounds great, is there any way to test this in an rvm enviroment?
<jhass>
sure, just make a new gemset
<jhass>
(and empty / pristine your global one if you got related stuff installed there)
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<lex_functor>
AlexRussia: what sound is ч
<lex_functor>
I can at least sound out the other characters
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<Killa>
Hi. I am trying to measure memory footprint of my rails app, I'm measuring the overall kilobytes of the process with method found at https://gist.github.com/pvdb/6240788#file-process_rss, which is returning "203,628 kilobytes". I would expect all of that to be stored in objects, but ObjectSpace.count_objects[:TOTAL] returns only 792372 objects. Every object weights 40 bytes, which sums up to ~30 megabytes of objects. Do I calculate the obje
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<Killa>
Can anyone tell where should I look for the missing memory?
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<LiquidInsect>
where are you getting 40 bytes from?
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<Killa>
LiquidInsect: I've read that somewhere. Is that not accurate?
<LiquidInsect>
40 bytes might be the overhead alone
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<LiquidInsect>
not counting additional instance variables, the actual data in each
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<RubyPanther>
objects take up a varying amount of memory. Fact.
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<LiquidInsect>
having no idea what your objects are, I can't tell you how big each one would be
<LiquidInsect>
yes
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<Killa>
The page you mentioned and countless different, where they say, that ruby objects weight 5 words
<LiquidInsect>
ok
<LiquidInsect>
but that's just
<LiquidInsect>
Object.new
<toretore>
a string is a single object, but it's not going to be a constant 40 bytes
<LiquidInsect>
like, empty
<LiquidInsect>
right
<RubyPanther>
And many objects will only be represented in ObjectSpace by some overhead, a pointer, and a pointer to a C function that frees whatever memory the object uses.
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<Killa>
allright than, so I am calculating the memory in a wrong way
<Killa>
cool, that's something : ]
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<Killa>
so, that also means I can judge the memory footprint of methods by number of allocated objects, right?
<RubyPanther>
Killa: What I do for overall usage is I turn off all my swap, and then measure resident memory
<RubyPanther>
Right, you can't judge the memory footprint of methods through any sort of rule of thumb, only through measuring actual memory usage according to the operating system
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<Killa>
I guess I will have to play with new features from 2.1.0
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<Killa>
Thanks a lot, everyone
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<dmead>
hey boys and girls
<Authenticator>
Does anyone know how to disable SimpleCov in a subprocess? My forking tests are dying with coverage on.
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<dmead>
if i want to call another process and collect it's output as it happens, whats the best thing to do?
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<jhass>
dmead: IO.popen I guess
<apeiros>
dmead: or Kernel#spawn
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<jhass>
that is if as it goes means you don't want to block until it exited
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<benzrf>
hmmmmmm
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<benzrf>
anybody know if there's a remote pry derivative that allows for multiple conns that DOESNT require eventmachine?
<benzrf>
id rather use celluloid i think
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<apeiros>
funny that a remote pry solution would use EM
<apeiros>
given that EM is pretty invasive
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<benzrf>
yeah :[
<jamto11>
does anyone know how to turn a time like this "2014-03-19 05:00:00 +0100" to "2014-03-19 06:00:00" ?
<benzrf>
i would just use remote-pry but it doesnt really support doing anything but suspending
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<toretore>
pry-remote-em is made specifically for em apps
<benzrf>
hmmmm
<apeiros>
toretore: ah, lol, yeah ok, I guess that makes sense :D
<benzrf>
the thing is that if i spin off multiple remote-pry's in threads, they dont play well
<benzrf>
they take over each others stdouts, and stuff
<toretore>
jamto11: first, convert the string into a Time, then use Time#strftime to create the string you want
<dmead>
k thanks
<toretore>
benzrf: what are you using it for?
<benzrf>
Quick
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<jamto11>
i have tried that but havent been able to get the +0100 at the end to change the rest of the time
<apeiros>
man! I really should work on my sill automaton. procrastinating this for like forever :-S
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<apeiros>
*silly
<benzrf>
it's owrking OK right now
<benzrf>
*working
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<benzrf>
but my current solution feels a tad messy o.o
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<benzrf>
anyway...
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<toretore>
jamto11: explain "tried"
<toretore>
code pls
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<jhass>
jamto11: also how are those two equivalent? is the second one supposed to be in UTC+2?
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<toretore>
you have a cet time represented in a string and you want to create another string representing that time as utc without tz information
<toretore>
oh
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<toretore>
it's not utc
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<jhass>
not, that'd be 4:00
<benzrf>
i need some way to start a remote-pry-em client, but have it send a command or two before giving a prompt to a user
<toretore>
fuckin timezones
<benzrf>
anybody know if theres a hook for that?
<apeiros>
ruby Time + timezones = mess
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<jamto11>
the thing is it used to be utc zulu then i changed it to non-utc, but i cant get rid of the fuken +400
<apeiros>
sadly, rubys time classes still suck.
<apeiros>
somebody should pay me to finish chronos :-p
<jamto11>
because redshift's convert_timezone thing ignores that
<toretore>
jamto11: you are not making any sense
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<jhass>
apeiros: do some crowdfunding! :P
<apeiros>
jhass: NO TIME!
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<apeiros>
I hate time, really. I mean, my lack of it :(
<jamto11>
ill make a gist
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<benzrf>
redshift ftw
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<bricker>
jamto11: so, just to be clear, you want to convert the time to UTC and then add two hours to it?
<jamto11>
js autoconverts the frontend to zulu time and i need to handle it on the backend
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<toretore>
jamto11: so what is the *real* time?
<jhass>
jamto11: converts it from what?
<toretore>
you don't have your data in order
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<bricker>
omg is this fullcalender... if it is I had this problem like 6 years ago
<jhass>
jamto11: and by convert you mean overrides the timezone without adjusting the time or really converting it?
<jamto11>
it really converts it
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<jamto11>
datepicker
<toretore>
jamto11: then why are you adding 2 hours to it?
<chichou>
I've done Time.parse time and it returned what you need
<jamto11>
sorry its supposed to be 4:00
<toretore>
i have no idea what it is you're doing here
<toretore>
you have an iso8601 formatted time
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<toretore>
and then?
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<toretore>
you want a string that says "2014-03-19 04:00:00 +0000" ?
<_riz_>
I'm not sure this is the right way to ask this question, but does anyone know the difference between $stdout.puts and puts ?
<toretore>
from one that says "2014-03-19T04:00:00.000Z" ?
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<chichou>
puts default to STDOUT
<shevy>
_riz_ I think these would seem the same
<shevy>
STDOUT is just assigned to $stdout
<_riz_>
I would think puts, by default, would use stdout, but I'm having a hard time grabbing it when overriding $stdout.write
<shevy>
aha
<jamto11>
the iso8601 worked lol..
<jamto11>
thanks
<_riz_>
shevy, chichou yeah, that's what I would have thought
<shevy>
well
<shevy>
.write seems to be like print
<toretore>
_riz_: what are you trying to achieve?
<_riz_>
what I'm doing is trying to split stdout
<_riz_>
like "tee"
<_riz_>
where it goes both to stdout and a file
<shevy>
hmm
<toretore>
_riz_: for what reason?
<_riz_>
what I've done works for $stdout.puts but not puts
<benzrf>
gah
<_riz_>
(also apparently not for stuff called with ``)
<benzrf>
how do =[
<toretore>
replace STDOUT with a proxy that forwards to both $stdout and your file
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<toretore>
it's a bad idea, but that's how you'd do it
<_riz_>
Where can I read more about STDOUT?
<toretore>
it's just a constant containing the same IO as $stdout
<Mon_Ouie>
$stdout is the one you have to change
<toretore>
yeah, might be the other way around
<Mon_Ouie>
STDOUT being a constant it should not be changed
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<benzrf>
<$ is a thing in haskell
<_riz_>
what I really want is a ruby implementation of dup2
<benzrf>
they dont have $> tho
<benzrf>
afaik
<_riz_>
but googling has come up empty
<_riz_>
(well, actually, with the technique I'm using)
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<havenwood>
think of STDOUT as the placeholder, and $stdout as the thing to fiddle with. capturing output from subshells is tricky, good ways to do it with IO.pipe
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<havenwood>
_riz_: RubyTapas episode 29 (which unfortunately is not one of the free ones) covers the issue really nicely.
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<havenwood>
We should ask Avdi to add that one to the free list, because it does come up and I don't know of another good writeup on the subject.
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<havenwood>
Though if the $9 for all episodes is a hardship just send a postcard asking for it free. There's a nice Ruby tradition of "free if you send a postcard asking" that helps for those short on cash! :)
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<benzrf>
Mon_Ouie: you there?
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<xybre>
benzrf: What is <$ other than unggogleable?
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<benzrf>
v <$ f = fmap (const v) f
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<havenwood>
I was gunna say, in Ruby nothing.. :P
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<havenwood>
my brain transposed to $< initially though, AFGF!
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<benzrf>
haha
<benzrf>
<$ can be handy
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<benzrf>
it looks wrong to me though
<benzrf>
i feel like the arrow should be toward the functor
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<benzrf>
plus the unwrapped side is the side toward the functor
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<bricker>
<$ is an ice cream cone obviously
<shevy>
lol
<havenwood>
bricker: money flavored
<Mon_Ouie>
benzrf: Yes?
<havenwood>
benzrf: No!
<Mon_Ouie>
xybre: hoogle
<xybre>
Mon_Ouie: whoogle?
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<Mon_Ouie>
hoogle!
<benzrf>
Mon_Ouie: hey, i dont suppose theres any way you could somehow fix pry-remote to be able to have multiple servers running at once?
<benzrf>
>->
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<Mon_Ouie>
You can have multiple ones listening to different ports (not with a single call to pry_remote though)
<benzrf>
u sure?
<benzrf>
i think i tried that and it bugged out
<xybre>
Mon_Ouie: Interesting. I wonder what it says about a language that is so symbol ehavy that it requires a special search engine.
<benzrf>
xybre: it's really not
<benzrf>
xybre: the special search engine is so you can search types and stuff
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<benzrf>
symbols are a bonus
<benzrf>
the majority of haskell code is no more symbolly than RubyPanther
<benzrf>
*ruby
<benzrf>
unless you're using lens with all the operators or something o=
<RubyPanther>
And I'm not very symbolly
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<benzrf>
Mon_Ouie: yeah
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<Mon_Ouie>
benzrf: Maybe you created them all in the same thread and so you had to wait for one to finish before the other started? You'd need to run each call to pry remote in a separate thread
<xybre>
benzrf: I just see a lot of stuff like (a : t@(b:_)) = (a+b)
<benzrf>
if i start multiple concurrent pry-remotes
<benzrf>
the second connection fails to load properly
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<RubyPanther>
In fact I cringe whenever I see symbol used as data and converted to a string and displayed to a user, "Aiiiiiieeeeeeeeeeeeeeee"
<benzrf>
and the 'connected' message shows up in the first one
<benzrf>
xybre: that's just pattern matching
<benzrf>
xybre: like destructuring assignment
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<benzrf>
a:b matches a list where a is the first element and b is the rest
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<benzrf>
the @ is for pulling part of a pattern into a var
<benzrf>
given:
<benzrf>
(a:t@(b:_)) = [1, 2, 3, 4]
<benzrf>
a == 1
<Mon_Ouie>
Hm, I don't know why it happens. I'm starting to feel like using DRb for that was a bad idea, makes it harder to understand those types of issues.
<benzrf>
t == [2, 3, 4]
<benzrf>
b == 2
<benzrf>
Mon_Ouie: hmmm
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<xybre>
Ah okay, pattern matching syntax. Like Ocaml. It's so dense yet sparse on semantic content that it throws me off out of context.
<xybre>
I'm actually pretty fond of data destructuring, but it always feels weird to actually do.
<xybre>
I can never decide if I want more than Ruby has or not.
<benzrf>
xybre: do some haskell and you will find that the answer is you do
<benzrf>
=)
<benzrf>
haskell has general immutability and lack of side effects tho
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<benzrf>
so destructuring is pretty damn important
<benzrf>
it's the only primitive way to take data out of something
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<xybre>
I also don't like how many operations it sometimes takes in Ruby to do something that I know is conceptually simple.
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<viscera>
11 "getting started" guides, and no way to distinguish which is best... i think i should probably use Why's for the lulz
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<xybre>
There's a lot of invisible, but real temporary objects being created and immediately GC'd. It jsut sorta bugs me.
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<benzrf>
viscera: what other langs do you know?
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<xybre>
I like Why's guide personally. But some people like super format stuff.
<viscera>
benzrf: little bits of lots...
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<benzrf>
viscera: python?
<benzrf>
java?
<benzrf>
C?
<apeiros>
xybre: the moment you worry about such things is the moment you lost
<benzrf>
haskell?
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<havenwood>
potion?
<benzrf>
xybre: haskell has some interesting abstractions
<benzrf>
like monads =D
<viscera>
python, java, C, bash, asm, perl
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<benzrf>
neat.
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<benzrf>
viscera: any lisp?
<apeiros>
xybre: focus on understandable, maintainable and readable code. care about performance when it's too slow.
<viscera>
a little
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<benzrf>
viscera: ok, you probably already know most of the basic concepts in ruby
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<benzrf>
viscera: ruby's OOP is more like java's than python's
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<benzrf>
but it's still fairly different
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<havenwood>
Ruby's OOP is more like OOP than Java's. :P
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<benzrf>
viscera: ruby objects have an internal set of instance variables, like attributes on python objects, but you can only see them from inside methods
<benzrf>
viscera: foo.bar is ALWAYS a method call
<xybre>
apeiros: I understand. And most of those temp variables are small and have very little impact so I don't worry about them too much, but it lends itself to some seriously procedural code, or else dense and unreadable object diving. A specific example of this is dealing with large amounts of semistructured data, API responses or legacy databases, dump files, etc.
<benzrf>
viscera: syntax is fairly perlish; you can leave off parens on methods, there's 'unless', and there's postfix if/unless
<benzrf>
viscera: as in lisp, everything is an expression.
<benzrf>
for example:
<benzrf>
def foo(n)
<benzrf>
if n > 3
<benzrf>
true
<benzrf>
else
<benzrf>
false
<apeiros>
xybre: that's what I'm saying - focus on the code, not on its performance implications.
<benzrf>
end
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<benzrf>
end
<benzrf>
obviously you'd just write n > 3
<benzrf>
but the point is that the if is an expression
<apeiros>
benzrf: >3 lines go to paste service
<benzrf>
apeiros: right sorry
<benzrf>
viscera: like in lisp, the result of a block of code is the last expr in it
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<benzrf>
viscera: also like in lisp, a lot of methods take functions, which you pass as 'blocks'
<benzrf>
which are basically similar to lambdas
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<benzrf>
Mon_Ouie: since im having issues with multiple pry-remotes, and I kinda wanna not use EM, got any suggestions for what I should do?
<viscera>
benzrf: okay... thanks...
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<benzrf>
viscera: ;p
<benzrf>
viscera: feel free to try _why's
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<benzrf>
viscera: it gives a fairly good general feel
<benzrf>
viscera: but it's a bit light on detailed explanations of how things work
<viscera>
benzrf: i started with it years ago, but then got sidetracked and/or lost interest, as i do
<havenwood>
viscera: be sure to read it along with the soundtrack
<benzrf>
havenwood: huh
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<Mon_Ouie>
I'm not really sure, loading pry-remote-em probably is the only way without writing your own code but if you don't want to use EM then…
<xybre>
apeiros: I can honestly say I've never had an issue with invisible objects outside of an n++ scenario, but the resulting code doesn't end end looking clean or OO.
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<benzrf>
bugging more people to look @ quick
<benzrf>
:-D
<xybre>
apeiros: Hmm, perhaps. What I'm saying is that I don't like the data constructs Ruby gives me because they are both ugly and inefficient. If they were not ugly or not inefficient it wouldn't bug me so much.
<banister>
benzrf cool
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<apeiros>
xybre: then make proper classes
<apeiros>
relying on just hashes and arrays is probably what makes your code ugly
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<benzrf>
Mon_Ouie: once you bundle install, you should be able to `require './service'; Quick::Service.run`
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<benzrf>
oh wait
<benzrf>
Mon_Ouie: gotta pass it a dirname to mount on my bad
<banister>
benzrf Mon_Ouie is a french magician
<banister>
the rimbaud of ruby (as he's known around the mean streets of brugges)
<benzrf>
!!!
<benzrf>
oops i mean <!DOCTYPE html>
<benzrf>
</haml_joke>
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<xybre>
apeiros: Classes are porrly suited to semistructured data. Especially if the data changes a lot. Whats required then is to write a DSL which walks an AST of parsed information since Ruby's built in data types are not up to the task.
<Mon_Ouie>
Btw, I tried it with a directory that didn't exist (I thought it would create the directory itself too) and I can't ^C it
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<graft>
benzrf: there's no need for closing tags, just un-indent.
<apeiros>
xybre: instead of whining about lacking datatypes - why not go and build them?
<benzrf>
Mon_Ouie: oopsie
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<banister>
xybre what datatype are u looking for (that exists in another language)
<slash_nick>
graft: outdent you mean?
<benzrf>
Mon_Ouie: the correct way to shut it down is as follows:
<xybre>
I'm hardly whining. The problem is not the data types.
<benzrf>
Mon_Ouie: i am using brb atm because EM :\
<xybre>
It is possible to create a class per "node" and try to have that class understand itself, tokenize and associate a class with each node and then recusively call its nested nodes in the same fasion. I've done this, but its a lot of excessive overhead.
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<benzrf>
xybre: use haskell :D :D :D
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<benzrf>
xybre: it is absolutely ideal for this
<benzrf>
parsec is fantastic for parsing, and ADTs sound like something youd want
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<benzrf>
Mon_Ouie: got it running on an extant dir?
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<Mon_Ouie>
Yes, I tried pry-remote-em to connect, doesn't seem to output correctly though
<Mon_Ouie>
undefined method `<<' for #<PryRemoteEm::Server::EM_CONNECTION_CLASS:0x00000004f0ed40>
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<xybre>
benzrf: Right and for data structure exploration functional languages shine. Haskell and Ocaml are ones I've explored as being good tools for that job, and I'm currently writing a bit in Rebol which is quite nice if less well known.
<Mon_Ouie>
(when I try to eval anything)
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<benzrf>
ive heard of rebol
<benzrf>
Mon_Ouie: huh
<benzrf>
Mon_Ouie: it works on my end o-o
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<benzrf>
Mon_Ouie: wheres the error originating from?
<Mon_Ouie>
It does run the code though, if I try to use puts it will display it on the process that started the server
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<bilbo_swaggins>
xybre, what do you mean by exploration?
<benzrf>
huh...
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<bilbo_swaggins>
exploring new ideas?
<Mon_Ouie>
I can't easily tell, if I puts $! it's already gone
<benzrf>
Mon_Ouie: i have == 0.75
<benzrf>
*0.7.5
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<Mon_Ouie>
[pry-remote-em] remote is PryRemoteEm 0.7.5 pryem
<benzrf>
huh...
<benzrf>
Mon_Ouie: anyway.
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<benzrf>
Mon_Ouie: if you cd into the mount dir, you should see the module hierarchy as directories
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<Mon_Ouie>
Oh! That's neat
<xybre>
bilbo_swaggins: given a large set of semistructured data, find the paths to the values you want, and then use thsoe paths to extract the values you need. An example of this would be some of the traditional web services that dump large data sets with no standard conventions. Pretty much any AST fits this specification as well. Old databases, proprietary file formats, all sorts of fun stuff.
<benzrf>
if you create any .rb file in a dir, all of the code in it will be evalled in that dir's corresponding module each time you save
<benzrf>
HOWEVER
<benzrf>
if the file is not named header.rb, the code will be rejected if it is not only method defs
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<benzrf>
so that you dont accidentally do effectful stuff
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<benzrf>
try making a new class in your pry, then editing methods in it live =D
<Mon_Ouie>
What about meta programming stuff?
<benzrf>
ill work something out later -.-
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<benzrf>
ITF there will be support for things like opening up a pry in the current dir's module
<benzrf>
including onto a persistent instance
<benzrf>
and the big one is
* benzrf
drum rolls
<benzrf>
integration with dmtcp
<benzrf>
=]
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<benzrf>
Mon_Ouie: anyway, what kinda project will have significant amounts of code outside of method defs?
<benzrf>
Mon_Ouie: i guess something small in sinatra maybe?
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<Mon_Ouie>
Well it could have helpers like attr_accessor that it defines and uses
<benzrf>
yeah, so put those in header.rb
<benzrf>
d:
<benzrf>
probably not a ton of em
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<Mon_Ouie>
Oh, ok, I'd missed that bit
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<benzrf>
kk
<benzrf>
also gonna be a thing:
<benzrf>
easy api for eval in the running process
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<benzrf>
vim plugin?
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<benzrf>
Mon_Ouie: btw, you can see what version of each file was most recently evaled by looking at the autocreated foo.in_use.rb file for foo.rb
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<benzrf>
it gets updated when code from foo.rb is loaded, stays the same when not
<benzrf>
potentially also useful for indicating whether changes are currently reflected in the process
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m0s^away is now known as m0s
<Mon_Ouie>
I don't know if it's related to fuse but if you try to ls a module that doesn't contain any classes it says 'no such file or directory'
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<benzrf>
oh?
<benzrf>
example?
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<Mon_Ouie>
ls <that dir>/Object => ls: cannot access tmp/Object: No such file or directory
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<benzrf>
o-O
<benzrf>
is it still running?
<Mon_Ouie>
Yes, it does have an error, not sure if it's related
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<Mon_Ouie>
ERROR: Exception #<NoMethodError: undefined method `[]' for nil:NilClass> not an Errno:: !respond_to?(:errno)
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<benzrf>
o_o
<benzrf>
line origin?
<Mon_Ouie>
Comes from getxattr in fuse, the call comes from quick/service.rb:22:in `block in run' in your code
<benzrf>
kk
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<benzrf>
uh?
<benzrf>
hmm
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<benzrf>
aha
<benzrf>
is your default ls different from just ls --color=auto
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<Mon_Ouie>
ls: aliased to ls --color=aut
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<benzrf>
hmm
<Mon_Ouie>
(well I didn't past the 'o' but you've probably guessed it's there)
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<benzrf>
haha
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<benzrf>
yeah the issue is that i misimpl'd a method
<benzrf>
[i think!]
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<benzrf>
Mon_Ouie: it expects a hash from xattr but it got nil
<benzrf>
:{
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<shevy>
hmm
<shevy>
in a client like irssi, how do you colourize something like yo
<benzrf>
yo
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<Mon_Ouie>
There's a mode in here that disables the colors, isn't there?
<benzrf>
hello brianpWins
<shevy>
hmm
<Mon_Ouie>
Yes, it's mode +c
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<shevy>
I am working on a minimal ruby IRC client, I wonder if and how I should enable colour support
<xybre>
shevy: In a terminal?
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<shevy>
no, only for IRC
<shevy>
got the terminals well covered already :)
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<shevy>
well; so that others on IRC can see the colours
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<xybre>
You mean so I can type [red]this text is red[\red] or something?
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<benzrf>
Mon_Ouie: i fixed that thing btw
<benzrf>
not pushed yet
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<shevy>
xybre precisely!
<shevy>
though typing [red] is probably not so convenient?
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<Mon_Ouie>
(I'm not sure the one for the color is that practical. I don't think many people use colors often enough they'd remember what they are). Allowing the first letter instead of the number could help.
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<xybre>
I'd say skip adding colors to messages.
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<xybre>
I used mIRC back in the day and everyone did it. Totally sucked. I wouldn't mind parsing a subset of markdown for bold and italics though, like how google does.