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<Radar>
h00d: Show us an example please.
<h00d>
"Dono da bola": 5,
<h00d>
"Isgalamido": 18,
<h00d>
"Zeh": 20
<Radar>
h00d: sounds like you want a hash.
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<h00d>
if "Dono da bola" killed Isgalamido then "Dono da bola": 6
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<shevy>
come on h00d
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<shevy>
there aren't so many data structures in ruby
<shevy>
string, array, hash. that's the unholy trinity
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<zenspider>
Coraline: hey. what do I need to check out to get equivalent flog scores? I tried canvas-lcm and it only looks like half
<h00d>
yes I am aware, but there is so much information with examples on the internet. The information that I find are very broad
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<zenspider>
h00d: then what are you asking?
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<shevy>
h00d you should collect useful information into local files, then you will be less dependent on crappy info from the www; in your example, use a hash: hash = Hash.new; now populate it with the keys, set these keys to 0 or whatever other value you have; if you dont know how to add to a hash, here is one example: http://stackoverflow.com/questions/9571768/how-to-add-new-item-to-hash
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<zenspider>
hash = {} ... Hash.new w/o a value is pointless
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<bricker>
zenspider: I think it's about intent, and to me Hash.new is more clear than {}
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<h00d>
ok, thanks
<h00d>
I will study more about.
<shevy>
\o/
<shevy>
he'll be a good ruby hacker in no time
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<h00d>
what?
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<h00d>
shevy: the link you gave me is exactly what needed
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<h00d>
tks.
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<shevy>
well, ruby has the "there is more than one way to do things"
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<shevy>
so as a newcomer you have more than one thing to learn eventually
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<h00d>
really, but there is always an easier way to do.
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<shevy>
very often
<shevy>
the less code you can get away with is often for the better, unless it would be unreadable
<h00d>
really
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<shevy>
it would make your code more efficient and often easier to change as well lateron
<shevy>
you can think of methods as logical chunks
<shevy>
SELECT * FROM clients WHERE (clients.id = 10) LIMIT 1
<shevy>
h00d so you see, which one is easier to memorize there?
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<baweaver>
Admittedly I tend to cringe whenever I see something like ``val = {}`` because normally what follows should have been written in the form of map, reduce, or merge instead
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<baweaver>
or just straight putting the values in the hash.
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<h00d>
active record
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<baweaver>
Though I kinda wish there was a cleaner way to maybe add a value to a hash without breaking flow. hash[:a] = a if a # bugs me a bit
<sevenseacat>
ive written that once or twice - usually when trying to avoid a convoluted inject
<sevenseacat>
the syntax for inject is ugly
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<h00d>
understand, quite interesting is another matter I want to study.
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<baweaver>
I normally write it as reduce, as that's essentially what you're doing most of the time
<baweaver>
reducing a collection into a single element given a function.
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<postmodern>
those using brightbox's ruby-ng ubuntu packages
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<baweaver>
or foldL, depends who's been using too much Haskell lately.
<postmodern>
how do you keep the /usr/bin/ruby symlinks pointing to ruby2.0?
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<baweaver>
. /usr/bin/env ruby
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<postmodern>
even after setting them with ruby-switch --set ruby2.0, an apt-get upgrade caused the ruby1.9.1 package to reset them
<sevenseacat>
update-alternatives ?
<shevy>
sevenseacat admit it - you dislike .inject because of the most ancient fear of cats not wanting to see a vet with a huge nasty syringe
<postmodern>
sevenseacat, not what I'm asking
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<sevenseacat>
oh sorry.
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<postmodern>
sevenseacat, how do I make it permanent
<shevy>
a permanent symlink?
<postmodern>
sevenseacat, ruby-switch is basically a shell script around update-alternatives
<sevenseacat>
ah okay
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<postmodern>
shevy, yes, one that can survive an apt-get upgrade, where ruby1.9.1 gets upgraded and dpkg re-triggers an update-alternatives
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<Coraline>
zenspider: I'm not sure of the makeup and distribution of the OSS version
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<shevy>
aha
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<shevy>
postmodern not sure but I assume that perhaps you can add custom hooks to those upgrades
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<postmodern>
shevy, unfortunately i don't know enough about dpkg to do that
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<pietr0>
postmodern: i'd file a bug on debian
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<dorei>
Is active_support/inflector the easy way to go if I just want to pluralize strings but not in a naive way (eg. when adding a final 's' is not enough, like entity => entities)?
<sevenseacat>
its certainly the way to go in a rails app, not sure about outside rails
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<dorei>
i'm using ruby off rails :) but I think inflector can be required anywhere
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<pontiki>
hallo o/
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<chintanparikh>
How would I use gets.chomp ignoring all data in ARGV?
<Radar>
chintanparikh: !code
<Radar>
chintanparikh: Please stop asking questions without code.
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<chintanparikh>
I can't figure out why it's trying to open a file called 5678
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<pontiki>
i don't know either. what's RTPSocket?
<chintanparikh>
pontiki: I'll add it to the gist. But it was working fine when I hard coded the values in instead of passing them in from the command line
<chintanparikh>
sevenseacat: Yup, but now the file only contains command = gets.chomp
<chintanparikh>
And I'm still getting the error, which makes no sense
<sevenseacat>
"Returns (and assigns to $_) the next line from the list of files in ARGV (or $*), or from standard input if no files are present on the command line."
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<sevenseacat>
so Kernel.gets *does* read from argv
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<chintanparikh>
Yup that's what I thought
<chintanparikh>
How would I stop that?
<pontiki>
well that is interesting
<pontiki>
use STDIN.gets instead, i guess
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<chintanparikh>
Sweet, that solved that error
<chintanparikh>
Now getting another
<chintanparikh>
client.rb:10:in `parse': undefined method `connect' for nil:NilClass (NoMethodError) from client.rb:30:in `block in <main>' from client.rb:27:in `loop' from client.rb:27:in `<main>'
<chintanparikh>
I'll add it to the gist
<pontiki>
thanks, sevenseacat, i did not know Kernel.gets did that
<sevenseacat>
neither did i
<chintanparikh>
I'm getting that error after I type in connect (so command = "connect")
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<sevenseacat>
trying to work out how to get a link to the doc in dash
<pontiki>
what have you tried to solve that so far, chintanparikh
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<chintanparikh>
Nevermind, that was a stupid error
<sevenseacat>
pontiki: he posted it here :D
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<pontiki>
;)
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<dorei>
it certainly conveys the feeling that something went wrong :D
<weaksauce>
that's pretty awesome
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<ebot1>
.quit
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<vulix>
Something Im confused about as I learn more about Ruby - gems are not platform independent?
<sevenseacat>
not the ones with native extensions.
<sevenseacat>
the rest are.
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<vulix>
Ok so if I write a gem that is solely contains code that should run natively in the mri, im platform independent
<sevenseacat>
I think we have different definitions of the word 'native'
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<eam>
not all pure ruby gems are platform independent
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<vulix>
So I'm not sure if I have this right, let me know if it is - the problem with writing a rails app on windows and deploying on linux might be some of the gems, like the sqlite3 gem, have a windows-specific version and if I deploy on linux the app would be bundled with the win-specific version and it wouldnt go out and fetch the linux one?
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<eam>
vulix: you would re-bundle or re-gem install on linux
<eam>
many developers do rails development on a different system/architecture than they deploy on
<sevenseacat>
they shouldnt IMO, but anyway
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<eam>
sevenseacat: eh why so judgey
<sevenseacat>
because it leads to tricky little problems
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<sevenseacat>
yes your code works beautifully on your OSX machine, with its case insensitive file system and other crap
<sevenseacat>
deploy to linux... *many explosions*
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<eam>
sevenseacat: well I presume the ci/staging/integration and production environments will be the same architecture
<eam>
but who cares where the editor is run?
<sevenseacat>
sure they are, but now you're putting a lot more credence in the test suite than it probably deserves
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<sevenseacat>
i'm a little cynical when it comes to these things - I've seen devs do things like install beta versions of software to get the functionality they want on their machines, and then gasp in shock when the code they wrote against the beta version doesnt work anywhere else
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<eam>
well if it doesn't shake out in staging there's no reason to think it'll shake out on the dev laptop either
<c-c>
KISS
<eam>
but I don't know why I'm arguing this point since I do everything in linux
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<sevenseacat>
i'd prefer to do everything in linux, but now i have a company-mandated macbook
<eam>
not because I'm afraid of differences, more because OSX is just an absurdly poor environment
<eam>
sevenseacat: me too
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<eam>
but it runs plenty of VMs
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<tubuliferous>
I want to read a flat file into a string, then remove the header and all "\n" characters. What's a straightforward and fast way to do that?
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<tubuliferous>
What I'm doing right now is neither straightforward nor fast...
<tubuliferous>
basically I'm reading line by line
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<Nilium>
So, game programming, graphics programming, phone apps, desktop apps, server-side crap that isn't just a fancy web server, etc.
<pipework>
Like, application isn't exactly a great word to use in this context.
<pipework>
Nilium: I'd argue the fanciness isn't all that great anyways.
<weaksauce>
existensil I wouldn't go so far to say "extremely well supported" but it's quite nice
<Nilium>
The fanciness is mostly boring from what I've seen since it's just different ways of displaying HTML and CSS.
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<Nilium>
I am rapidly approaching the point where I feel like I need to learn Erlang.
<existensil>
compared to any other ruby GUI tools :-P
<weaksauce>
fair :D
<Nilium>
wxRuby is dead as a rock, so you can at least ignore that.
<pipework>
I don't mind browsers, or HTTP, if the problem doesn't beg to not be over HTTP. I mean, websockets are nice, but the browser sandboxed environment is one I don't have interest in working on more than occasionally. I'd not want to work on one constantly if I felt like it was either a pile of shit or becoming that.
<weaksauce>
Nilium that's probably the first time that sentence has been uttered about erlang
<pipework>
weaksauce: definitely not
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<pipework>
Lots of times when you hear the phrase "embarassingly parallel", it's followed by utterances of "I should learn erlang" or "I know erlang, we should use that."
<Nilium>
I basically end up writing stuff that needs to be heavily-distributed but communicating somehow, and Erlang's kind of up there for those jobs
<weaksauce>
I kid pipework... but it's still fringe for most purposes like haskell or prolog
<pipework>
Yeah, so most things have parallelism and concurrency, but you either need to select or create a mechanism for distribution of work.
<existensil>
as someone who already knows go, you think it doesn't fill the same void really?
<pipework>
existensil: It doesn't.
<Nilium>
No. Go's good at single-process concurrency.
<existensil>
I know its concurrency is supposed to be awesome
<pipework>
I mean, it can with libraries and stuff to support all the features in erlang.
<pipework>
They have channels, we have actors.
<existensil>
i guess, yeah, I haven't heard anything about distributing workloads across many machines with go
<pipework>
With either we can make the other though.
<Nilium>
Communicating across processes is still a case of picking and choosing how you do it, be it messaging via ZeroMQ or using some sort of RPC or what have you
<pipework>
weaksauce: I mean, it's not a popular language, but it's more prevalent in closed source systems than you might assume.
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<pipework>
I'd dare say a lot more than haskell is. Prolog probably is more prevalent as whale. I'm not personally sure on that one.
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<pipework>
However, the next new language I learn will be ocaml.
<pipework>
Or rust.
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<Nilium>
Erlang's thing, for me, is that the VM and programs can be distributed and communicate across a cluster and it's just built for that.
<weaksauce>
the problems prolog solves it can solve well.
<existensil>
Nilium, pipework ... so, is IPC mechanisms built into erlang? are they integrated into it's concurrency patterns?
<Nilium>
Basically yes.
<pipework>
existensil: Yes.
<pipework>
Literally, a message pass.
<weaksauce>
but It's not a great programming language
<existensil>
jeez, maybe I should check out some erlang
<pipework>
weaksauce: What isn't?
<existensil>
ugh
<weaksauce>
prolog
<Nilium>
There's also Elixir, not sure if that's actually worth learning over Erlang.
<pipework>
weaksauce: I don't know that I could agree if I'm being intellectually honest.
<Nilium>
Same VM, so at least it's a single target.
<pipework>
Nilium: Actually, there's *also* Elixir. Not just instead.
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<weaksauce>
pipework with the full statement or just the last bit?
<pipework>
Because Elixir emits more efficient bytecode than erlang does.
<Nilium>
Interesting
<pipework>
weaksauce: That prolog isn't a great programming language.
<Nilium>
At any rate, I just see Go and Erlang and so on as being different approaches to different problems.
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<weaksauce>
the full statement was the problems prolog solves it can solve well but It's not a great programming language
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<Nilium>
If I want a single binary that only needs to know about itself, Go's pretty great.
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<pipework>
Yeah, you can make it entirely cross-platform and not even link any libraries dynamically, even the linux.so
<Nilium>
There's a lot to be said for easy cross-compiling
<pipework>
The tooling for that is great. IIRC, you can do the same with erlang with the exception of some dynamic library loading for, iirc, system call symbols.
<Nilium>
It tends to get brushed over, but being able to build a binary for Linux on my Mac and scp it over to where it needs to be is pretty swell.
<pipework>
But go is pretty cool. They ship with gofmt which is great.
<pipework>
I disagree with some of it, but at least there's a single source of truth on how to format go.
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<Nilium>
Yeah, it's not perfect, but consistency goes a long way.
<Nilium>
It's definitely not the language for all problems, anyway. Kind of worrying that some people try to make it that.
<pipework>
There's nothing I dislike about Go that's objective. There's just more that I like about erlang that I believe is objective.
<Nilium>
I can believe that.
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<pipework>
Erlang is slow on a single-process perspective.
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<pipework>
But if you have parallel work, the real time you save by using erlang can crunch hours of single-threaded embarrassingly parallel work can be enormous.
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<pipework>
Especially if you've got more than one node.
<pipework>
It's really fun to marvel at the collective 'man hours' versus realtime.
<pipework>
Koolaids: Some people's clients show previews, nice rick roll attempt.
<Nilium>
I just don't click anything with multiple exclamation marks.
<Nilium>
I wonder if I could just set up a fleet of 32 Raspberry Pi 2s and if that'd handle Erlang well.
<pipework>
Nilium: You've probably missed out on boatloads of free penis enlargement offers.
<pipework>
Nilium: I don't know if erlang has support for arm.
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<Nilium>
It looks like it might, but I'm googling specifically for arm64, so it's a little iffy.
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<Nilium>
Granted I could just try building it on my Pi 2.
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<Nilium>
The idea of getting a cluster of Pis going just seems neat to me since it'd be an interesting way to get a low-power cluster for various things.
<Nilium>
Not sure what those things would be yet, so that's the hard part.
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<pipework>
Nilium: You could always implement your own BEAM
<pipework>
On arm64.
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<pipework>
My jokes aren't funny.
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<Radar>
And I've been doing Ruby for about 10 years of that 15... and I just tried to define a method called "send" but caught myself before I could do any real damage.
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<sevenseacat>
hehe
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<pipework>
But you can do that as long as you don't define __send__ too.
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<pipework>
IIRC, the bare minimum is #object_id and #__send__ and a couple other __-ish methods
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<Koolaids>
yeah ruby seems nice
<Koolaids>
i dig it
<pipework>
Koolaids: The big thing that python doesn't seem to ever want to do is have powerful lambdas.
<pipework>
List comprehensions and other fun things with their weak lambdas seem to keep them happy enough.
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<apeiros>
I guess you could qualify that as the basic minimum. I still wish for an external introspection class, though.
* wwwbukolaycom
hi
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<pipework>
apeiros: I don't think that's even the minimum. I think you can drop everything but __send__ and __id__ if #object_id is no longer the necessary method for that.
<apeiros>
pipework: afaik ruby does not require any of those methods either
<apeiros>
it'll just be hard to do a lot of stuff since most code assumes them to be present
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<pipework>
apeiros: Yeah? I guess you'd just have to trade off the ability to send messages or play with objectspace, respectively.
<apeiros>
I actually wonder how irb/pry do an inspect on a basicobject
<apeiros>
given that it lacks #class
<apeiros>
and missing #instance_variables certainly doesn't make it easier either
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<apeiros>
well, gotta commute, cya :)
<pipework>
:D
<pipework>
apeiros: Thanks for the extra info.
<pipework>
I haven't needed a cleanroom-style object in quite a long time.
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<workmad3>
pagios: that's the line you think is at issue, I got that
<workmad3>
pagios: but that line isn't referenced in the stack trace of your error
<pagios>
o
<workmad3>
pagios: making me suspect that the error is somewhere completely different
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<aawe>
Would it be possible to create a NilClass initializer?
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<aawe>
or is NilClass just a behavoir class around a null pointer, without any capacity for storing instance variables?
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<workmad3>
aawe: you can monkey-patch NilClass with methods that include ivar usage
<aawe>
workmad3: I want to add "@_nil_caller = caller_locations(1,1)[0]" to the initializer to store where the nil value was created
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<workmad3>
aawe: but you can't sensibly add an initialize constructor to NilClass... 'nil' is created a single time during Ruby's startup, it isn't recreated every time you access 'nil'
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<aawe>
that's a shame
<sevenseacat>
nil is a singleton, isnt it
<sevenseacat>
just like true and false
<workmad3>
sevenseacat: I'd call nil, true and false globals personally... and NilClass, TrueClass and FalseClass are singleton classes :)
<sevenseacat>
ah hah okay
<aawe>
it would be great to get some info where a nil was "created" anyway
<aawe>
instead of where it was attempted to be used as something else
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<workmad3>
aawe: except it isn't created apart from when ruby starts
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<aawe>
workmad3: that could be changed
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<workmad3>
aawe: not without a significant change to the ruby runtime, both in code and in semantics of nil
<aawe>
significant how? it's just a few if statements ;)
<aawe>
I see your point but I think it would be feasible
<aawe>
and it would be great to see where I got a nil instead of a null pointer exception
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<workmad3>
aawe: the runtime short-circuits a lot of stuff around 'nil' because it's always a single instance that it can check very quickly and easily
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<workmad3>
aawe: so it would be significant because *all* of that optimization would need to be pulled out
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<workmad3>
aawe: and semantically, you'd be altering the idea that there's only a single 'empty reference' value, and replacing it with the idea that every 'nil' is somehow special and newly created... and what value would you then use if you *couldn't* create a new 'nil' instance? such as in OOM situations...
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<elev>
someone here on?
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<anonym>
s
<apeiros>
no, yes, maybe
<apeiros>
just ask your question and you'll see ;-)
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<aawe>
According to my client there are 898 users here
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<Myrl-chan>
aawe: lol
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<pagios>
x["topic_arn"] =~ /#{topic}/ means find if x[topic_arn] contains a topic string?
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<certainty>
ruboto: tell me a joke
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<aawe>
certainty: this kills the bot
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<aawe>
pagios: yes
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<aawe>
pagios: but x["topic_arn"].contains?(topic) would be better in this case
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<aawe>
also x["topic_arn"] =~ /#{topic}/ is "failsy" if it begins with the topic ("monkeys" =~ /mon/ => 0)
<pagios>
awwaiid: if (x["endpoint"] == @subscriberARN && x["topic_arn"].contains?(topic)) then ... <-- the == is ok too ? or use .equal?
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<aawe>
wait it should be .include?
<vulix>
anyone ever integrate ruby and apache solr?
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<pagios>
aawe: i want to compaure if the strings are equal and if topic var is contained in x["topic_arn"]
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<pagios>
if (x["endpoint"].eql?(@subscriberARN) && x["topic_arn"].contains?(topic)) then
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<aawe>
pagios: it should be .include?
<pagios>
not there yet, it is not matched even though i am sure the strings are equal
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<pagios>
.include instead of .contains you mean
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<aawe>
yes
<aawe>
you rarely want to use .equals, use .eql or ==
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<pagios>
if (x["endpoint"] == @subscriberARN && x["topic_arn"].include?(topic)) then
<pagios>
still it does not match
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<apeiros>
aawe, pagios: topic could contain regex special characters. so .include?(topic) is not necessarily the same.
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<PeopleLaugh>
apeiros: can you get a chick and get laid? seriously?
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<wasamasa>
...
<PeopleLaugh>
no he cant
<wasamasa>
PeopleLaugh: your nick looks like you need the affirmation for your crappy trolling
<PeopleLaugh>
whatever do you mean?
<wasamasa>
it is a lie
<PeopleLaugh>
one these days imma learn how to make an irc bot and program a vpn changer in
<PeopleLaugh>
then leave it on a left alone computer and run that shit all day on freenode
<wasamasa>
and chill the fuck out, just because you got banned for trolling with java doesn't mean you should keep pestering #ruby
<PeopleLaugh>
how do you know i got banned from java?
<wasamasa>
haven't you got anything better to do
<PeopleLaugh>
also its quite flattering that i'm so famous
<certainty>
x(
<PeopleLaugh>
literally every coding channel knows who i am
<PeopleLaugh>
and they cant keep me out
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<PeopleLaugh>
##java can suck my dick
<PeopleLaugh>
yall know how it is
<PeopleLaugh>
where my niggas at
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<PeopleLaugh>
niggers and queers
<wasamasa>
yup, you haven't got anything better to do
<PeopleLaugh>
NO i dont
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<apeiros>
!kick PeopleLaugh bye
<jhass>
!ban PeopleLaugh boooring
PeopleLaugh was kicked from #ruby by ruboto [bye]
<canton7>
hah
<canton7>
teamwork!
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<jhass>
join #node.js if you want more fun
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<apeiros>
ah, and ^5 jhass :D
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<BLuEGoD>
what's the best way to deal with my_array['a']['b']['c']['d'] undefined method [] when somewhere in the middle something does not exist? like my_array['a']['b'] is nil. This actually comes from a Yaml file so unable to initialize non known values. I just want to return an empty string back, but don't want to check every single thing for nil?
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<rom1504>
you'll need to check
<rom1504>
no magic
<apeiros>
BLuEGoD: multiple options - a) reorganize your data so you use proper datastructures which remove this need, b) write a method with a signature like: deep_fetch(hash, *keys), c) check every single level manually
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<BLuEGoD>
if my_array['a'] && my_array['b'] && ...... my_array['z'] => sucks
<apeiros>
BLuEGoD: also array['a'] <-- is certainly not an array ;-)
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<apeiros>
(arrays are indexed, they don't have string keys)
<BLuEGoD>
well a hash in this case
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<BLuEGoD>
sorry for that
<apeiros>
np, luckily it was obvious enough this time
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<BLuEGoD>
groovy has something like a['b']?['c']?['d'] which may look a bit weird but certainly better than implement a method for this. I'm aware of .try, but looks horrible.
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<rom1504>
who said anything about "if my_array['a'] && my_array['b'] && ...... my_array['z'] "
<rom1504>
there are better ways to check
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<certainty>
I agree array['a'] is certainly not an arry
<certainty>
now you have certainty
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<elev>
Can someone help me with variables?
<certainty>
elev: sure. here you have one
<certainty>
@
<certainty>
damn
<elev>
what is @?
<elev>
means=
<certainty>
it's a typo
<elev>
I started ruby today
<elev>
no idea where to start
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<certainty>
elev: what are you struggling with?
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<elev>
I use sublime text and I am done with an easy code. Do I have to write end?
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<mwlang>
given a Hash: h = {:a=>{:b=>{:c=>"hello"}}} is it possible to assign h[:a][:b] to a variable, say “v” such that I could do v[:c][:d] = “World” and get {:a=>{:b=>{:c=>"hello”, :d => “World”}}} for h?
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<elev>
yes mwlang
<rom1504>
elev: yes write end, 9 times
<mwlang>
I’m trying to recursively build a hash from a tree of nodes
<elev>
I write end 9 times?
<rom1504>
yeah
<elev>
?
<elev>
why?
<rom1504>
because it's better than 8 !
<elev>
dude
<elev>
give me a answear fucker
<jhass>
elev: watch your language
<elev>
ydo I have to write end?
<elev>
sorry jhass
<elev>
but he is kidding with me
<rom1504>
elev: give me a question, I'll give you an answer
<elev>
jhass are you on this channel 24/7?
<elev>
rom1504 I write ruby in sublime etxt
<elev>
aftwr a code is done do I have to write end?
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<jhass>
rom1504: don't bother, its our troll
<elev>
dude
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<elev>
pls
<elev>
do I have to write end?
<elev>
or no?
<rom1504>
try it
<jhass>
yes, you have to
<elev>
ok thanks
<elev>
and after I write end, I can start another program?
<elev>
like write another code?
<jhass>
sure
<mwlang>
does my question make sense?
<jhass>
mwlang: yes and yes you can
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<mwlang>
oh, wait, just tried it again and it worked. Must’ve fubarred it first time around.
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* mwlang
*grumbles*
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<elev>
jhass?
<elev>
what happens when I write end
<elev>
?
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<IloveJhass>
+1
<IloveJhass>
:D
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<IloveJhass>
mwlang
<jhass>
!kick IloveJhass you focus on me again, I get it
<IloveJhass>
jhass and mwlang are online here 24/7
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<Ruby4newbie>
hello guys
<kaspergrubbe>
hi
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<Ruby4newbie>
can someone help me with an thing?
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<rom1504>
maybe
<Ruby4newbie>
When I start irssi my name is always Mathias123
<Ruby4newbie>
and I change it with / nick and new name
<rom1504>
/nick your_nick then /save
<jhass>
whoops
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<certainty>
damn i missed the fun
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<Industrial>
Hi. Are there books on how to implement things and/or patterns on how to make things more DRY that is not linked to one platform or language?
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<Industrial>
like besides assuming stuff is there ...
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<Industrial>
I don't really know how to create things so that I might evade boilerplate code :)
<Industrial>
How to create systems that avoid you from writing boilerplat code. I guess :)
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<aawe>
Industrial: I recommend watching the Destroy All Software screencasts
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<|bb|>
hello
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<|bb|>
what are the best books for a rails beginner?
<hanmac1>
|bb| #RubyOnRails
<|bb|>
k
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<jhass>
Industrial: Design patterns in Ruby is also good. Don't worry about which language the book uses, you can easily transfer such stuff to all languages you know well enough
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<hanmac1>
jhass: design patterns are nice, but some does use them just to have them which is wrong imo ... (and such patterns can be overused ... like Java with FactoryFactory classes ;P)
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* certainty
uses patterns for conversations
<certainty>
rarely for code
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<jhass>
I totally agree, but I sometimes recognize them in my code and that helps me do the last step in some cases
<jhass>
in any case I think learning them can help you think a bit more object oriented which helps in DRYing up your code usually
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<ninjs>
So I'm working on a project where I grab a bunch of claim files and spit them out to an excel file, one claim per line. Before I write them to the spreadsheet, I need to sort them by one of the values(date_range). I'm wondering if I could solve this by making a class 'Claim'? I'm not sure
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<mikecmpbll>
ninjs: probably a bit overkill. just sort whichever structure you're parsing the 'claim files' into.
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<ninjs>
Haha. I was told yesterday that my code was a mess and that I should make it more 'rubylike'
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<ninjs>
So I'm trying to first separate my giant method into a bunch of smaller ones, but the way I'm writing those files is looping through all of the files in a directory, and doing file.each that writes each grabbed value to a row that gets written to an excel file
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<shevy>
is there a question
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<certainty>
interesting i have a case where my AR model doesn't typcast a column correctly. The column has type smallint(6). It's a mysql db. Saving an int to that column works fine. Howver loading the record again results in a string value for that column. Might be some gem messing with AR or the MySQL adapter
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<certainty>
will construct a testcase later
<certainty>
damn i justed wanted to upgrade
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<bMalum>
how can i set manually a cookie for get requests with ruby net::http
<dudedudeman>
in what context are you using AR, certainty?
<dudedudeman>
outside of rails?
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<hanmac1>
imo i still find it funny that some big things like Symphony or CakePHP does not work correctly with Models that does have combined primary key ;P imo its a key feature of databases and it does makes a bad view if ORMs does not support that
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<ytti>
StringScanner question
<ytti>
sc = StringScanner.new string
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<ytti>
sc.scan_until /something
<ytti>
data = sc.pre_match
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<ytti>
sc.scan_until /somethin_else/
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<ytti>
how do i get delta between last scan_until
<ytti>
and current scan_until
<ytti>
w/o the matched data?
<ytti>
i guess string manipulation is only option?
<ytti>
delta = sc.scan_until /something_else/
<ytti>
then remove sc.matched from delta?
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<tosbourn>
Quick question: Before requiring 'date' in an IRB session, what is the Date class that you have access to?
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<tosbourn>
I was trying to look it up but my google-fu is letting me down
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<ninjs>
So I have a method now that crates each claim that is processed using the Claim class.. my thought was at the end of each iteration to write it to a row on the excel sheet based on it's id#. But I'm looking for a way to sort all of the claims, collectively, by date_range, before I write them. Any ideas? I'll post a gist.
<mikecmpbll>
ninjs: ok, it doesn't appear you're storing each claim in that loop
<mikecmpbll>
just printing it out
<ninjs>
I was thinking of replacing line 115 'claim.show' with something like newsheet1.row(claim.get_number)
<tosbourn>
gem -v gives me 2.2.2 jhass
<ninjs>
mikecmpbll: yeah I was just printing it for now to make sure everything was working
<mikecmpbll>
ninjs: if you create an array before you iterate over the files: claims = []
<mikecmpbll>
ninjs: then add each new claim to the array: claims << claim
<mikecmpbll>
then you can use ruby's sort and sort_by methods
<jhass>
tosbourn: then it comes from there, 2.4 removed it
<ninjs>
mikecmpbll: awesome! but how do I write that array out?
<tosbourn>
jhass: thanks :)
<mikecmpbll>
ninjs: to the spreadsheet?
<ninjs>
I guess, I mean how do I grab each claim out of the array once I put it in there haha
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<mikecmpbll>
ninjs: you can iterate over the array using .each for example
<mikecmpbll>
like you're doing with the files.
<ninjs>
Oh. awesome
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<ninjs>
My array looks crazy though.
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<mikecmpbll>
why?
<ninjs>
It's like #<Claim:0x007f96d7951a08 @payor="PAYER NAME", @patient="John Doe", @total="TOTALS.TT", @date_range="D./FR/OM-D./TO/OO", @sent_date="CR/EA/TE", @comments="Sent on CR/EA/TE", @loc="unknown", @units="22">]
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<mikecmpbll>
that's a claim object.
<matugm>
That's an object, not an array.
<mikecmpbll>
(with a closing array bracket at the end)
<mikecmpbll>
:)
<ninjs>
right I mean it's an array of object that look like that
<mikecmpbll>
yes, correect.
<matugm>
Yell, having an array of objects is fine :)
<ninjs>
that's right? so I do something like Claims.each do |claim|; print claim.patient; end; for example?
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<mikecmpbll>
you can do that, yes.
<matugm>
Well*
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<mikecmpbll>
except not exactly that.
<mikecmpbll>
claims*
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<ninjs>
oh just lowercase c at the beginning
<mikecmpbll>
ninjs: yep, if that's what you called the array.
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<ninjs>
That's right. I'm getting invalid method 'patient' with that example
<mikecmpbll>
ninjs: because that method isn't defined on Claim.
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<ninjs>
Oh, they keep on being a claim object
<ninjs>
nice. I love ruby haha
<mikecmpbll>
you can use attr_reader :patient if you want that method.
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<Matip>
I have a class and in each of the n methods I'm adding "def foo \n begin \n ... \n rescue Bar => e \n puts e.message \n end"
<Matip>
can I do that on a class level so I don't have to do so on each method?
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<Matip>
something like class Example \n def on_exception(e) puts e.message end end" or something
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<ninjs>
mikecmpbll: so to sort that array... claims.sort(date_range) ? or something like that
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<Matip>
I mean, define an exception handler for the whole class
<mikecmpbll>
ninjs: if you want to sort it in-place (replacing it with the sorted version), you can do claims.sort_by!{ |c| c.date_range }
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<mikecmpbll>
ninjs: but, if it's a method you've not used before just look at the docs.
<mikecmpbll>
and it will tell you how to use it.
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<hanmac1>
Matip maybe use a Decorator for that
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<ninjs>
but c.date_range has to be a method in the Claim class
<stephenh>
hi, hopefully not too off topic.. is there a way to use bundler to install gems from git into the gem path ? the problem i'm having is gems from git are installed to $GEM_PATH/bundler/gems and not $GEM_PATH/gems; i'd like to make use of these gems without using 'bundle exec'
<ninjs>
mikecmpbll: ^
<mikecmpbll>
ninjs: yes, correct.
<Mon_Ouie>
You could write a method that generates your methods by using using define_method. You can also drop the `begin' and just have a single line that goes rescue Bar => e; foo(e) at the end of each method
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<ninjs>
mikecmpbll: matugm: thanks for your help, I really appreciate it. :)
<hanmac1>
maasha: you might use || for line 4-6
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<mbff>
Hello! I am having a bit a trouble with requiring files
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<mbff>
I have require './lib/strike_api'
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<hanmac1>
imo rubocop is a whiny little spoiled child ... it tears at the simplest code
<shevy>
if you have a gem structure, or a gem, then require 'name' should be fine mbff
<mikecmpbll>
maasha: simply replace lines 4..8 with all your conditions or'd together
<hanmac1>
mbff: checkout require_relative
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<shevy>
mbff otherwise try require_relative
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<mikecmpbll>
you don't need any return statements
<mbff>
however the file that uses that require will only run from the root of my project
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<mbff>
how would i write the require statement so regardless of where I run "ruby test.rb" it works
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<maasha>
hanmac1: agreed, but it makes my code better I think.
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<mikecmpbll>
maasha: the worst thing about that code is the if true; return true; else return false; end antipattern
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<mikecmpbll>
that's probably not what robocop is complaining about tho
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<maasha>
mikecmpbll: antipattern?
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<mikecmpbll>
maasha: ineffective code
<shevy>
mbff make it a gem, it's much simpler in the long run; or use an aliased directory, then you could use something like: require 'x/strike_api.rb' if x is the name of the symlink
<shevy>
but as said, if you have it a gem, require 'name_of_project' would work as-is; in test.rb, you can have this as the first line, and it'll work
<mikecmpbll>
maasha: you're making the same return true if <condition> mistake in there
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<Mon_Ouie>
maasha: Use Enumerable#any?
<mikecmpbll>
maasha: actually ignore me
<mikecmpbll>
but yeah that can still be simplified quite substantially.
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<maasha>
Mon_Ouie: ?
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<Mon_Ouie>
What do you mean, '?'? Enumerable#any? is a method for checking if there is any element in a collection that satisfies some predicate, which is what you're doing here
<hanmac1>
maasha: about " return true if value.is_a?(String) && @exact.include?(value.to_sym), return true if !value.is_a?(String) && @exact.include?(value)" what other types than String / Symbol does you expect? Symbol does have to_sym too
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<mikecmpbll>
^ yeah that too. i didn't even read the code tbh :D
<maasha>
hanmac1: expected types are String, Symbol, Integer and Float
<hanmac1>
maasha: normally "return true if @exact.include?(value.respond_to?(:to_sym) ? value.to_sym : value)" should do what you want
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<maasha>
hanmac1: ...in 80 chars with a bit of indention and you-know-who whines?
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<hanmac1>
ah the 80 chars rule ... my old archenemy
<maasha>
but it is probably more clean, agreed
<maasha>
maasha: and fixes the complexity problem. Thanks.
<bricker>
> "a" ??!??! "b"
<bricker>
>> "a" ??!??! "b"
<ruboto>
bricker # => /tmp/execpad-bab35b50b24f/source-bab35b50b24f:3: syntax error, unexpected keyword_rescue, expecting ...check link for more (https://eval.in/314569)
<hanmac1>
maasha: you might write it in more lines like this with linebreaks "return true if @exact.include?( \n value.respond_to?(:to_sym) ? value.to_sym : value \n )" ... but sooner or later rubocop will whine that the method is to long again
<bricker>
aww
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<maasha>
I am assigning a new value to the backreference match - so it is used?
<mikecmpbll>
you're creating a new variable.
<centrx>
you're assigning the name match to a new object, not re-assigning the previous object
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<mikecmpbll>
puts match.object_id; match = "X"; puts match.object_id
<mikecmpbll>
:d
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<maasha>
So how do you gsub something using the backreference to determine the outcome?
<maasha>
apparently my way is messy
<mikecmpbll>
maasha: why?
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<maasha>
rubocop says so.
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<mikecmpbll>
that code isn't doing anything
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<mikecmpbll>
if you've got some real code to show, then by all means show it
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<mikecmpbll>
maasha: what i mean by not doing anything is the assignment of `match` isn't affecting that code, you could just as well replace line 6 with 'X'
<shellfu>
"Go ahead skin it! Skin that smoke wagon and see what happens!"
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<ninjs>
shevy: Oh, I see what you mean, condense some of those if statements
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<ninjs>
so that I don't repeat myself
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<adaedra>
I was told to prefer the use of interpolation or String#% to adding strings, as it will not create temporary objects
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<shevy>
ninjs yeah
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<shevy>
because you duplicate the same task
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<adaedra>
And I would do the "name split" by first_name, last_name = full_name.split(/, /).map(&:capitalize)
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<adaedra>
so you have it in one line and don't do the split operation twice
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<adaedra>
oh ninjs
<adaedra>
is that a tab character in Claim#show ?
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<ninjs>
whoops that's a pasting error haha
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<ninjs>
that Claim#show doesn't even need to be there I was just using it for testing haha
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<adaedra>
And ARGV is supposed to be an array, so ARGV == 'help' seems wrong
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<adaedra>
Your variable naming in file_move is very bad
<adaedra>
What's w, x, y, z
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<centrx>
always improvements
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<adaedra>
aww, you can't comment lines on a gist, too bad
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<mikecmpbll>
ninjs: btw if you had a hash which contained the row numbers for the different type of data in the different formats, you could avoid all that if claim_ext == .. nonsense in every method
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<mikecmpbll>
and just do claim_array[column_for[claim_ext][:sent_date]) or something like that
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<mikecmpbll>
i worded that like shit so you've probably got no idea what i mean, nvm
<ninjs>
adaedra: yeah that was an old quick script I wrote haha
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<dEPy>
If I rescue like this: rescue *[SomeError, AnotherError]
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<dEPy>
Can I do this? rescue *[SomeError, AnotherError] => e ?
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<Mon_Ouie>
`*[X, Y]' is silly, you can just replace it with `X, Y'
<Mon_Ouie>
But yes, you can do that just fine
<dEPy>
oh, ok
<dEPy>
Tnx! :)
<bricker>
It could be useful if you're dynamically deciding which errors to rescue
<bricker>
shrug
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<apeiros>
dEPy: that said, you could do something like: RelevantExceptions = [SomeError, AnotherError]; … begin; …; rescue *RelevantExceptions => e; … end
<apeiros>
now I ponder trying a method in the rescue clause - should work I'd say…
<ruboto>
eam # => I'm on fire (RuntimeError) ...check link for more (https://eval.in/314602)
<apeiros>
oh, actually
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<apeiros>
WHY ON EARTH DOES FILE.NEW ACCEPT RANDOM KEYWORD ARGS IT DOESN'T UNDERSTAND?!?
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<apeiros>
(╯°□°）╯︵ ┻━┻
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<apeiros>
sooo, it works indeed as I thought it would. you just have to use the right name for the keyword argument. and File.new doesn't effing care if you pass it nonsense.
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<dorei>
but how could File.new know what arguments make sense?
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<apeiros>
dorei: serious question?
<dorei>
doesnt that depend upon the underlying filesystem?
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<apeiros>
no
<apeiros>
the underlying file system has absolutely nothing to do with which keyword arguments File.new accepts
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<dorei>
oh, i see what you mean
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<apeiros>
and I wrote encoding_external: "utf-8" instead of external_encoding: "utf-8"
<eam>
File.new takes keyword arguments?
<apeiros>
well, technically it accepts a hash
<apeiros>
it has not yet been retrofitted to take kwargs
<apeiros>
and that's probably the reason for its behavior, as it doesn't check against unknown keys in the hash.
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<eam>
ah for opt
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<wald0>
im trying to use "ruby-staccato" to track google-analytics events, but it simply not works (pry says that everything is OK)
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<wald0>
is there anybody that uses it or that knows that it WORKS ?
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<wald0>
im trying to use "ruby-staccato" to track google-analytics events, but it simply not works (pry says that everything is OK)
<wald0>
is there anybody that uses it or that knows that it WORKS ?
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<centrx>
?ask
<ruboto>
Don't ask to ask. Just ask your question, and if anybody can help, they will likely try to do so.
<centrx>
helpa has been replaced by MR ruboto
<momomomomo>
centrx: that’s not the type of response I was looking for
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<centrx>
uh oh
<momomomomo>
I was specifically looking for the getting answers guide
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<centrx>
yeah
<centrx>
fu ruboto
<momomomomo>
:p
<apeiros>
:<
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<momomomomo>
apeiros: is that your bot?
<apeiros>
I'd say "it's our bot"
<apeiros>
but yes
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<momomomomo>
make it not deviate from railsbot
<adaedra>
Our bot ♪ In the middle of our chan ♪
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<apeiros>
momomomomo: it eventually will. I don't intend to import all of helpa's factoids. there's quite a lot of stuff in it I'd prefer not to have.
<momomomomo>
did Radar deprecate helpa?
<centrx>
radar has been locked in a room until he agrees with the bot coup
<centrx>
I think the room is called ##political-prisoner
<apeiros>
but I'll see with Radar how far we can sync
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<momomomomo>
wack, I like helpa
<momomomomo>
why the change?
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<dudedudeman>
how to ask smart questions is a good read
<momomomomo>
dudedudeman: agreed!
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<apeiros>
momomomomo: because ruboto will be connected with the channel website. and that's far easier when the bot runs on the same server.
<momomomomo>
loooool didn’t realize there was a channel website
<apeiros>
topic :)
<apeiros>
it's new. we're working on getting our tooling up.
<momomomomo>
but also, that’s a pretty weak excuse :p
<centrx>
and no longer links to mod-ruby from 185
<centrx>
1985
<apeiros>
momomomomo: you're free to provide the work to make it work with helpa.
<apeiros>
momomomomo: until then I suggest you stop judging what's how strong or weak a reason.
<centrx>
maybe the bots should fight to decide
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<momomomomo>
apeiros: what level of integration are you looking for?
<wald0>
momomomomo: centrx: i dont understand... i asked the question, there's nothing in my statistics using staccato, checking if anybody here can confirm that works
<momomomomo>
i.e. what’s the scope of the connectivity?
<apeiros>
momomomomo: join #ruby-community to discuss that
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<centrx>
wald0, I think the answer is "no one here really knows staccato, but we may be able to answer a more specific, practical question"
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* dudedudeman
wants to see a bot fight
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<wald0>
centrx: but i dont see anything more specifical... pry reports that everything is fine, but there's no track at all in my google-analytics, so... idk
<centrx>
wald0, check the log files? puts/p out some of your variables in your code to see what's happening?
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<dudedudeman>
some .inspect might be helpful, too
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<centrx>
yeah p calls inspect
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<dudedudeman>
does it?
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<dudedudeman>
consider me enlightened
<wald0>
the staccato command simply sends a call to google analytics, so i dont know to where see any logs
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<user121212>
Hi!, I wrote a crawler in ruby and I want to run in in a server for a few days, and log the stdout in a log file. what will be the best way to do that?
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<dorei>
user121212: you could use the shell to redirect the stdout to a file
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<Doue>
okay thanks I see how to
<Doue>
thanks I will try this way
<jhass>
Doue: two notes if you don't mind: prefer "string #{interpolation}" over "string" + concatenation and I'm not sure why you call super in initialize, since you don't subclass anything special
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<Doue>
in your examples, can I do initize("one value") ?
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<Doue>
and not only two ?
<Doue>
yes I don;t need super actually
<jhass>
mh? My example only passed only one parameter
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<apeiros>
hm, interesting. seems File.read(path, external_encoding: x) will convert from x to Encoding.default_internal, except if x is binary.
<Doue>
you got a and b
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<jhass>
Doue: in the definition yeah, note that I only pass b in Foo.new
<h00d>
hi guys
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<jhass>
cosmicfires: not in any range that's relevant to worry about anyway
<apeiros>
that is, for equivalent case/when vs. if/else. with a complex case expression, the equivalent for if/elsif would require you to assign the result to a variable first.
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<jhass>
cosmicfires: use what's more efficient to write in your case, not what's more efficient to run
<jhass>
benchmark and optimize only if you suspect an actual bottleneck
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<cosmicfires>
thanks
<cosmicfires>
I was curious
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<Doue>
ninjs: I should probably do something like this: def initialize(params = {}) ?
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<jhass>
Doue: why no "string #{interpolation}"? :)
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<jhass>
Doue: no it's fine, prefer the keyword args if you can use them
<jhass>
though I'd spend that definition a few more newlines
<jhass>
another style note: we prefer snake_case for variable names
<cosmicfires>
I did a quick benchmark if/else vs case/when if/else used 30% less cpu time so not worth worrying about
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<Doue>
jhass: okay I change to interpolation ! so you don't think I should use the has ?
<Doue>
hash
<jhass>
Doue: no, don't use the hash
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<ninjs>
and no... I didn't spend almost 20 minutes doing that...
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<ninjs>
apeiros: what's wrong with your eyes? haha
<juyhj>
eyes = identity matrix
<vulix>
How smoothly does build on OSX deploy on Linux go? Or is it really recommended to dev in Linux as well
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<King_Dead>
ok I got rails to work now
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<ninjs>
vulix: I haven't had many problems building on OSX and deploying on linux
<jhass>
vulix: I think it's a pretty standard path, so tools should be ironed out for that. Developers with shiny MBPs and Linux on the server is quite common, especially in the Ruby community
<ninjs>
Really depends on what kind of underlying stuff you're doing
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<vulix>
Ty guys
<vulix>
I was worried it was like the Windows situation :P
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<ninjs>
I couldn't imagine trying to write Ruby on windows.. haha
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<ninjs>
just having to set up environments for my coworkers to run some scripts of mine has been a headache
<vulix>
yeah im surprised python has got cross-platform working so well
<vulix>
I think its because theyve been on 2.7 forever and not everyones jumped to 3 yet
<ninjs>
Eh, lots of science tools are on windows to start with, so python has to cater to that crowd
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<vulix>
I'm wanting to port some topic modeling tools I use to Ruby from Java
<vulix>
SciRuby though...I cant tell if its dead or ongoing
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<juyhj>
python is a big guy in science and machine learning
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<vulix>
I know, it's just not enjoyable to use for me. I already use Java and R for that type of work anyway
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<vulix>
There seems to be a small group of people interested in Ruby for scientific applications...not many though
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<dudedudeman>
oh my god
<apeiros>
I googled
<juyhj>
a little button just at the left of status, there is option, hide join and quit, done
<apeiros>
and actually I googled for freenode's webchat
* dudedudeman
bows down
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<apeiros>
and STILL found the solution for pidgin
<apeiros>
;-p
<dudedudeman>
clearly i suck at the google
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<apeiros>
next time, just search for a different thing than what you use :D
<juyhj>
next book the art of googling
<dudedudeman>
speaking of books, my copy of the pick axe book is going to be delivered today!
<jhass>
dudedudeman: pidgin also has a smart filter plugin somewhere
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<juyhj>
I learned a lot with pickage but I learned online, didn't buy anything
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<dudedudeman>
i think i got it set up....
<juyhj>
one small advantage of using webchat.freenode is that you can browse other things at the same time very easily
<dudedudeman>
true
<jhass>
dudedudeman: get the pidgin plugin pack and enable IRC helper or whatever it was called
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<juyhj>
dudedeman, you shouldn't repeat yourself, ruby is dry
<dudedudeman>
the way i run this is i have chat, terminal and email client open on my left monitor, and all other windows full screened on my main monitor
<toretore>
you mean like switching between windows?
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<jhass>
toretore: tabs! that's totally different!
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<toretore>
i find switching windows much easier than switching tabs
<dudedudeman>
toretore: same here. i don't haver to change the position with my hand to do so
<toretore>
and how do you switch between channels inside the tab?
<juyhj>
in webchat channels are like tabs, but not real tab, don't know the hotkey to switch tabs
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<jhass>
Alt+tab, Alt+^, Ctrl+tab all pretty much the same
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<dudedudeman>
yeah, Ctrl+tab switches windows for me in pdigin
<juyhj>
jhass in the firefox webchat control+tab is to switch to another tab in the navigator but all channel of webchat are in one unique tab
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<juyhj>
by the way, a question of javascript, how can one discover what key are bound to any event, that is how you discover keys associated with events
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<jhass>
my point is that switching between tabs (Ctrl+tab) and switching between windows (alt+tab, alt+^) doesn't make much of a difference to me, so it doesn't influence my decision whether to prefer a web based tool or a native application
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<jhass>
there's #javascript or ##javascript, I don't remember (probably the later)
<juyhj>
ok, jhass I discovered that you don't have all the answers ))
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<vulix>
havenn I read through that GIL blog post, ty
<jhass>
or maybe I stay on topic ;)
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<juyhj>
#javascript is full of people.
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<juyhj>
I find handy watir with ruby, but I remember waiting for a new version to catch up with new versions of firefox
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<mr_snowf1ake>
so i have an alias in zsh... alias ls="ls -Gp". so when i do "type ls" it says it's an alias to ls -Gp. When I do ruby -e 'puts `type ls`' it outputs that ls is /bin/ls. is there a way to get ruby to read in these aliases? is there some equivalent to a .bashrc or .bash_profile for ruby possibly? :P
<juyhj>
askend in javascript about discovering hot keys, it seems there is not an easy way
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<jhass>
mr_snowf1ake: you could /bin/bash -c it, but it's meh
<jhass>
just not worth it, use Dir[]/Dir.entries to list files in Ruby
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<mr_snowf1ake>
jhass: my alias is in ~/.bashrc and i tried running ruby -e 'puts `/bin/bash -c "type ls"`' and it still didn't come up with the right output. hmm...
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<mr_snowf1ake>
i also tried making it into a login shell with the --login option
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<jhass>
what's your true goal?
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<havenn>
mr_snowf1ake: ruby -e 'puts `bash -ci "type ls"`' #=> ls is aliased to `echo omgwtfbbq!'
<mr_snowf1ake>
jhass: i have a git commit hook written in ruby. i have cmake aliased for a system specific library configuration. i want the hook to respect that
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<mr_snowf1ake>
havenn: ooh cool, thanks!
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<juyhj>
-ci interactive
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<mr_snowf1ake>
ahh, alright
<jhass>
I wonder if there isn't some environment variable convention for cmake, like there's CC and stuff
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<mr_snowf1ake>
i don't know... i tried looking for that, but couldn't find anything.
<mr_snowf1ake>
but jhass, i would agree that that is the right way to solve this..
<mr_snowf1ake>
i'll try #cmake as well
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<user121212>
newbee here, I'm learning the CSV library, I want to add some string into a csv inside a block, But it only adds the first row, can you help me to find the reason?
<jhass>
user121212: you're overwriting the file in each iteration
<wasamasa>
jhass: any news from our bad troll?
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<jhass>
not so far
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<user121212>
@jhass yes, should I open the csv from outside the block?
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<jhass>
user121212: yeah, basically swap the blocks around
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<user121212>
@jhass okay, thank you
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<hutch78>
Hello friends, I have been trying to debug an issue I am receiving.. I am trying to schedule cron tasks using the whenever gem. I am receiving an error in cron_error_log.log which reads “bin/rails:7: undefined method `require_relative' for main:Object (NoMethodError)”. - anyone have exprience with this ? it works PERFECT locally
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<jhass>
hutch78: sounds like your server has an ancient ruby version (1.8)
<hutch78>
which ruby shows 2.1.5
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<jhass>
well, not inside the cron task I bet
<hutch78>
ahh
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<jhass>
?crosspost hutch78
<ruboto>
hutch78, Please do not crosspost without at least telling so. Experience shows that people don't bother to inform the other channels of provided solutions, therefore it is considered rude.
<Senjai>
jhass: Do we not use helpa anymore? j/c
<jhass>
Senjai: yeah
<Senjai>
!tips
<Senjai>
jhass: Yeah we do, or yeah we dont :P
<jhass>
ruboto is our new overlord
<jhass>
if you want any fact added, just note so ;)
<adaedra>
helpa is dead, long live ruboto
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<mr_snowf1ake>
is the source for ruboto available somewhere public? :)
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<dorei>
is there a way to rewrite/rethink this: @file = arg.is_a?(StringIO) ? arg : File.new(arg, 'r') ?
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<adaedra>
Are you sure you will only have StringIO or String as input ?
<adaedra>
Can’t you have other kinds of IO, like a File or a Socket?
<jhass>
mr_snowf1ake: no
<Senjai>
Why wouldnt it be public >.>
<Senjai>
?test
<ruboto>
I don't know anything about test
<jhass>
Senjai: because we can ban and kick with it
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<dorei>
adaedra: maybe a File
<jhass>
dorei: respond_to? to_io is a nice way to duck type on IO, afaik
<Senjai>
jhass: /cs access not good enough anymore ? :P
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<jhass>
Senjai: programmers are lazy ;)
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<Senjai>
jhass: Theres a plugin for that, on almost every irc client ever xD
<jhass>
Senjai: timed bans and stuff like that ;)
<adaedra>
Senjai: bot kickban can be automated and more precise than ChanServ or /mode
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<Senjai>
Ah
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<mwlang>
today is a good day. Everything I tried just worked and I had no lame questions slip out to y’all.
<mwlang>
:-)
<jhass>
automatic mask choosing by nick & auth status and so on
<adaedra>
dorei: then as jhass said, replacing your test by a duck-typing one (test for a #read method, for example) or find a common ancestor to all classes (maybe IO) would be better
<apeiros>
Senjai: cs does not support kick, and cs akick without mask goes for authname
<jhass>
not that it already does that, but it gives us the possibility
<apeiros>
Senjai: and the plan for the bot is to go by nick and automatically ban nick + ip, with the ip only for a limited time
<adaedra>
but otherwise it’s compact enough, dorei
<nemish>
if i wanted to rescue that script if /usr/bin/aws (pip awscli) wasn't installed or if aws returned error because of creds missing... how would I go about doing that
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<nemish>
dudedudeman, yeah sorry already had it there for another channel
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<dudedudeman>
nemish: ha, i ain't mad
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<nemish>
i'm far from a ruby guy this was as good as I got... just have no idea how to rescue it :(
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<bricker>
nemish: what does the command do if either of those cases are true?
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<nemish>
returns 1
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<bricker>
nemish: great, just check that condition and do something
<bricker>
if exit_status > 1 ...
<nemish>
rescue?
<bricker>
er
<bricker>
> 0 would be better
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<bricker>
nemish: you don't need to rescue if it just returns 1.
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<bricker>
Well
<nemish>
but its exit status of tags = Facter::Util::REsolution.exec
<bricker>
right, it sounds like it's just the bash exit status
<bricker>
If it works, does it return 0?
<nemish>
has to return a 0 (hence the rescue i'm guessing)
<nemish>
yes
<bricker>
yes
<bricker>
so just check the exit status
<bricker>
and do something if the exit status is non-zero
<nemish>
how do you check the exit_status on tags = ?
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<bricker>
nemish: tags will be set to 1 or 0
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<nemish>
so basically line 9-23 would only get run if exit of tags exec is 0... else rescue just so the ruby script returns 0 exit code
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<thomcom>
whoa
<thomcom>
I just got LocalJumpError: unexpected return
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<thomcom>
Is early termination illegal in ruby?
<bricker>
thomcom: it's illegal from main
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<bricker>
and from non-methods
<bricker>
class bodies and stuff
<thomcom>
my early termination is from deep in activerecord objects
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<thomcom>
Maybe the error is something I'm not expecting then :D
<thomcom>
In a statesman transition callback actually.
<bricker>
thomcom: It's unlikely that the Rails team released a version with a LocalJumpError
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<thomcom>
yup
<bricker>
. . .
<bricker>
*high fice*
<bricker>
high face*
<bricker>
high five*
<bishop>
nailed it :P
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<bricker>
:P
<thomcom>
statesman callback is somehow from main? From main of a thread?
<adaedra>
*high fist*
<adaedra>
ooops
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<thomcom>
ugh well now I get to cordone off half a method into an else hehe
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<dudedudeman>
Wooo! got my pickaxe book
<dudedudeman>
it's a lot thicker than i expected.....
<ninjs>
wow.. that's so dumb haha the excel libraries available for python are so much cooler than the ones for ruby
<bishop>
Could someone explain the concept whole "taint" thing for objects?
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<bricker>
bishop: they're flags for your objects to tell the program whether the object can be trusted or not
<bishop>
What determines a trusted object
<bishop>
Like sanitization?
<bricker>
bishop: Ruby does in some places, and you can also set the flags yourself
<xxneolithicxx>
i think its used a lot by cgi/web stuff although i havent used it much myself
<nemish>
bricker, modules/ec2tags/lib/facter/ec2tags.rb:8:in `<main>': undefined local variable or method `exit_status' for main:Object (NameError)
<bricker>
bishop: so for example, the strings in ENV are automatically set to "tainted"
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<bricker>
nemish: it's not literally copy-and-paste "exit_status"
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<thomcom>
Does every object have a taint flag already, or is this something you need to create yourself?
<bricker>
I'm saying your method returns an exit status, and you're setting that value to the "tags" variable
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<bricker>
thomcom: taint, untaint, trust, untrust (and related check methods) are defined on Object
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<nemish>
bricker, no my variable returns array from the output of the command
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<nemish>
so when the exec can't find the application it fails
<bricker>
nemish: fails in what way
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<nemish>
bricker, /usr/share/gems/gems/json-1.7.7/lib/json/common.rb:155:in `initialize': no implicit conversion of nil into String (TypeError)
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<bricker>
nemish: sorry, there's not much I can do with that.
<nemish>
so if tags is nil
<nemish>
exit 0 rather than continuing
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<bricker>
nemish: I still don't know what you neab by "it fails"
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<bricker>
mean* by
<nemish>
would !(tags.nil)? work?
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<bricker>
nemish: `!tags.nil?` will check if tags is nil
<Marabo>
How big is Ruby compared to Python?
<xxneolithicxx>
thomcom: a common example is any data from a web app, like ENV should be considered dangerous until sanitized and explicitly marked not so. and you can make dangerous functions check the taintness of objects to decide whether to handle the data differently based on a security context level
<nemish>
if tags is not nil
<bricker>
Marabo: in LOC?
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<Marabo>
bricker, LOC?
<xxneolithicxx>
LOC =lines of code
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<thomcom>
Hehe
<thomcom>
On WINDOWS???
<Marabo>
No, semantics and libraries etc.
<thomcom>
Binary size?
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<Marabo>
stdlib and such
<thomcom>
Hehe popularity wise?
<thomcom>
I think ruby has a MUCH bigger set of tools than python.
<thomcom>
5x
<thomcom>
Python has much much more do-it-yourself.
<bishop>
Marabo: I would say that one area where I use Python over ruby is most things math related. Python had a much larger selection of mathematical tools.
<bricker>
Marabo: calculating now...
<Marabo>
Sure, I think too. I asked the question, "How long does it take to learn Python well for a C++ programmer" in #Python and they went like, 5 years etc. So it seems pretty big language-wise.
<thomcom>
Want a python web server? There's no rails! You create your own authentication, data access layer, etc etc.
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<bishop>
Ruby is cool for web stuff, but I can't really imagine doing anything at scale with ruby long term.
<thomcom>
numpy is pretty useful bishop
<thomcom>
Seems like all that ruby is really for is web stuff at this point.
<bricker>
oh he doesn't care about source LOC
<bricker>
:(
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<Marabo>
I mainly want a language for web lol.
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<thomcom>
Ruby or Javascript :)
<bricker>
well, the answer is: mri = 1,778,753 LOC, cpython = 1,802,209
<bishop>
Oh yeah! No doubt, thomcom. I just am saying that Python generally has more math related libraries in my day to day programming
<Marabo>
But I want to know what I dig into. Like, I didn't know Python was huge.
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<adaedra>
who has a huge python?
<Marabo>
lol
<bricker>
Python and Ruby are basically the same. Marabo as a cpp dev you will be more at home using Python.
<thomcom>
bishop R is my favorite math language, but I have used numpy a few times when my data was already available in python
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<thomcom>
Ruby is less strict than python
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<Marabo>
bricker, Really?
<thomcom>
So if you as a C++ programmer want strictness, but versatile, go with python.
<Marabo>
I don't know but for some reason I want to go with Ruby.
<thomcom>
If you want to get as DYNAMICAL as you can, go with Ruby. :)
<ninjs>
thomcom: There is django.. it's pretty close to Rails. Also saying that Ruby has a bigger set of tools is probably false
<ninjs>
ruby has more web tools, but python has more general tools
<bishop>
Marabo, learning any language isn't something that you need to take a lot of time to consider. Virtually any programming language will give you the insight and confidence to switch later on if you don't like.
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<bishop>
Given that you are looking at web-dev stuff ruby is a good place to start
<Marabo>
bishop, Yea that's what I also think.
<bishop>
Check out sinatra, it's small light-weight and you can have a working site in a weekend :)
<thomcom>
ninjs hard to argue with that. I've written a fair amount of python and it feels a lot more like the wild west to me.
<thomcom>
bishop Marabo agreed totally - it really doesn't matter much
<thomcom>
Marabo make a list of stuff you like about Ruby and become a Rubyist. Simple. :) Same thing business execs do when deciding on a tech.
<ninjs>
thomcom: I think it's all just what you are used to. Python's syntax can feel very wild west, but there's only one way to do things (python way) vs. Ruby's many ways to do things
<Marabo>
I really want to learn the language and feel comfortable with it. I mean the flow is so important. Like in C, you have header files, using the cpp files to include them, know how it works. That's what I'm mainly looking for in a language.
<bishop>
thomcom lol
<Marabo>
in C++*
<ninjs>
Marabo: both Ruby and Python have those elements
<bishop>
yep
<ninjs>
either through requiring gems in ruby, or importing libraries in python
<thomcom>
Yeah python syntax is NOT wild west, it is very strict and that is a nice thing about it. What I mean is, after doing research looking for toolsets for a variety of web and numerical tasks, Python came up short way more often than Ruby does in my experience ninjs
<Marabo>
Is Ruby as big or bigger than Python? Semantics and such. Much to learn?
<thomcom>
I miss header files Marabo
<thomcom>
You will not find them anywhere else.
<Marabo>
thomcom, They are awesome.
<thomcom>
Marabo maybe you should stay a C++ programmer
<ninjs>
thomcom: web tasks definitely. Other tasks.. I think it really just depends. I just said maybe 10 minutes ago how the libraries for working with excel files are drastically better than the ones available for ruby.
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<jhass>
Marabo: I'd say syntax is less, there's some redundancy in some semantics you can safely ignore for quite a while though
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<Marabo>
thomcom, How so?
<thomcom>
When I was a C++ programer I really believed in code beauty. Now that I know ten languages and work with varied groups I know that all code is shit.
<ninjs>
thomcom: I'm not sure I meant that syntax is wild west, but you don't often have the simple methods that good ruby code exhibits.
<thomcom>
So, keep the innocence and make beautiful code. Nothing brings me more pleasure still than a well organized header file. :D :D
<jhass>
Marabo: a surprising amount of stuff is just method calls or syntax sugar for them
<bricker>
thomcom: all code is shit, just write it, collect paycheck, move on.
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<bishop>
Marabo, Don't sweat syntax.
<Marabo>
jhass, Yea did read that :p
<thomcom>
bricker ikr
<Marabo>
Will any background in C++ help learning Ruby?
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<bricker>
Marabo: yes
<bricker>
But, also Python
<thomcom>
Oh strict indentation is also AWESOME
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<jhass>
Marabo: blocks is probably the hardest part to grasp, after that it's easy
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<bishop>
object oriented yo
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<Marabo>
I don't like Django, really. And as I said, I want a web language.
<Marabo>
So I much rather use Rails.
<thomcom>
You'll have no trouble with Ruby Marabo. There will be weird syntaxes that take you a long time to accept, but the core principles are always the same from language to language (except functional) hehehe
<bishop>
Learn you a Haskell for great good
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<Marabo>
thomcom, Yea that's true. But the #Python guys scared the sht out of me telling me it would take 5 years to decade to become good at Python.
<thomcom>
know haskell bishop?
<Marabo>
I was like, it took me 3 years for C++..
<thomcom>
Yeah I think they probably just meant it will take you 5 years to reproduce PEP 8 exactly and perfectly without fail.
<jhass>
Marabo: well, that's because "good" is arbitrary
<Marabo>
jhass, True,
<jhass>
so you were up to the interpretation of it of whoever was around
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<Senjai>
Marabo: Deciding to be a good programmer is hard. Especially if you work for or around terrible people
<Senjai>
That decision means leaving that position.
<Marabo>
What I mean by good is to really be able to do what you want and understand one of the best ways of doing it.
<Senjai>
A lot of people just stick it out for the paycheck and have no intetion on getting better, just getting the job done
<Marabo>
Senjai, Currently I'm doing it for myself.
<bishop>
That's nonsense. Find something you like. Make some things you like. Don't sweat the gurus, then you will become one. It's all just experience
<Senjai>
Marabo: If you're not already in the industry, you're set!
<jhass>
a common saying is that to truely master a language you need to work for 10 years with it, but I'd say you're usually productive with it already in less than 6 months, less even depending on your prior skillset
<Marabo>
Senjai, Got 5 years until I get into the industry :p
<Senjai>
Marabo: Nonsense, took me 5 months of self teaching, I'm sure you could do the same
<thomcom>
Honestly who wants to be a true language master
<thomcom>
10 years is 1.5 epochs in computer time
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<thomcom>
30 years is literally 5 pivotal changes in technology
<thomcom>
or more
<Senjai>
Marabo: The hardest thing to understand about code, is that its just code. No matter what language, it all works the same. Things call other things.
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<thomcom>
the more you know the better, because the better equipped you will be to completely abandon what you were doing and do something different
<Marabo>
Of course, mastering something will take a life time. But as I said before, what I mean by being good is to really do what you want. "Oh I want to create a web application x that does y".
<Senjai>
Marabo: Like league of legends? Do something cool with its api
<Senjai>
Like games? make a tetris clone
<Senjai>
Like networking? Make an IRC client
<thomcom>
indeed Marabo
<thomcom>
Make Stuff
<Senjai>
and so on and so forth
<Marabo>
Senjai, I have made a NES emulator in C++.
<Senjai>
Marabo: That's impressive
<thomcom>
Only by making stuff in your spare time will you truly become a master. :D
<Senjai>
Marabo: open source?
<thomcom>
I have 4 kids so I don't do much in my spare time anymore :D
<thomcom>
Except play Pillars of Eternity
<Marabo>
Senjai, Nop. It was for Uni project.
<Senjai>
thomcom: That'd slow ya down
<Marabo>
Senjai, Too overkill.
<Senjai>
Marabo: lol what? Uni project? :P
<Marabo>
But I needed the grade badly.
<Marabo>
Yes.
<Marabo>
University.
<Senjai>
I get it
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<Senjai>
That just sounds like a very long project for uni
<Senjai>
Like horribly involved
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<Senjai>
Marabo: You should open source it
<Marabo>
Senjai, Not really, but took some time.
<Marabo>
Senjai, How so?
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<thomcom>
Pretty awesome Marabo
<thomcom>
Emulators are deep technology to build
<thomcom>
You should open source it because it is good resume materual.
<thomcom>
If I interviewed you and knew you wrote an emulator I would want to hire you probably.
<eam>
which is why it's a good idea to open source stuff -- published material is your resume
<thomcom>
more important than any piece of paper
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<Marabo>
I don't see it as a big deal tho but yea sure maybe I will open source it.
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<Senjai>
thomcom: Eh, wouldn't go that far. You can accomplish anything and still write terrible terrible code
<Senjai>
Marabo: You should
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<Senjai>
Open source EVERYTHING
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<postmodern>
say you follow semver, and you have a method that returns a Hash{String => String}, but you want to include additional data in that Hash, how do you maintain backwards compatibility? Make a String-like class?
<xxneolithicxx>
can you add an optional param to the method :compat = false and if compatibility return the new hash otherwise the old one and remove the compat setting with the transition to next major version
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<xxneolithicxx>
reverse what i said, :compat = true
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<postmodern>
jhass, er the data will be added to the value, not the key
<jhass>
I was more seeking an example you can't fake metaprogramatically (I think I made that up right now :D)
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<jhass>
I like xxneolithicxx idea, let the caller explicitly enable the new behavior until next major
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<eam>
>> special="a string"; special.instance_eval { def extra(x=nil); @x=x if x;@x; end }; special.extra "data"; [special, special.class, special.extra]