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<BinaryMaster>
Can anyone tell my why this isn't working like I think it should: source = (samovar.respond_to? :get_name ? samovar.get_name : samovar.to_s) Instead of getting either the return from get_name or the var as a string I get a boolean value
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<slyv>
Hey - So I'm trying to match a string in the format of: ".something a b c d" Where the first match is "something" and the second match is "a b c d". I was trying /.(.*) (.*)/, but that was matching everything in the first match up to the final space, leaving the second match to d. Could anyone help me find the correct regex ?
<bricker>
for array = [1, 2, 3], how can I get array[20..30] to return an empty array? I know about Array(nil), wondering if there's an instance method way I can do it
<bricker>
slyv: you need to escape that first dot, like /\.(.*) (.*)/
<banisterfiend>
bricker: still a to_a on the end of it
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<bricker>
banisterfiend: ah, not bad, thanks!
<BinaryMaster>
slyv, ".something a b c d".sub!(/\.\w/, 'found1').sub!(/[a-Z] [a-Z] [a-Z] [a-Z]/, 'found2')
<slyv>
The a b c d was just random text with spaces in it, and thanks bricked.
<slyv>
*bricker
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<BinaryMaster>
Can anyone tell my why this isn't working like I think it should: source = (samovar.respond_to? :get_name ? samovar.get_name : samovar.to_s) Instead of getting either the return from get_name or the var as a string I get a boolean value
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<ShapeShifter499>
hi
<ShapeShifter499>
I'm new to ruby so I'm still learning
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<ShapeShifter499>
I want something that would act as a api to starbucks, I found this and it happens to be written in ruby. Anyone here know how to run this ? https://github.com/jakebilbrey/emeraldsiren
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<jamesaxl>
ShapeShifter499: you should install it 1st
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<ShapeShifter499>
jamesaxl, gem install?
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<jamesaxl>
ShapeShifter499: yeah
<ShapeShifter499>
ah ha
<ShapeShifter499>
lol
<ShapeShifter499>
thanks
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<waxjar>
they should've put that in the README. the project has a Gemfile, that means it uses Bundler to manage dependencies. You should install bundler, then run bundle install to install the app's dependency's
<waxjar>
*dependencies
<lectrick>
How do I give class_eval a block variable? I keep getting "wrong number of arguments (1 for 0)" when I try to do class_eval(&block)
<waxjar>
you can run it with rackup
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<waxjar>
lectrick, you can't with class_eval, but you can with class_exec :)
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<wormwood>
Hello all, anyone have Ruby 2.0 with DTrace support up on OSX? I compiled ruby 2.0 with dtrace support but its not triggering a probe. Aside from compiling with DTrace support is there anything else I'm supposed to do?
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<lewis>
hi
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<Liru>
Also should be mentioned that a lot of buildings would have their own inventory lists
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<Liru>
I'm guessing that I should implement classes
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<Hanmac>
Liru what kind of game are you planing?
<Liru>
Hanmac: IRC-based multiplayer game
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<Liru>
I feel like I should just implement the hash method and refactor it later
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<shevy>
IRC based?
<Liru>
Yeah
<shevy>
we can play that through IRC?
<Liru>
Well, I don't have much right now
<shevy>
Hanmac.reboot
<shevy>
Hanmac.do_something_silly
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<shevy>
hehe
<Liru>
Currently, you can only idle and get levels based on what you're "doing"
<Liru>
which doesn't actually produce anything
<shevy>
Liru, I am rewriting my largest project right now... it's now the third day ... I am at like 3% finished so far...
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<Liru>
oh?
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<shevy>
I often feel ruby is too complicated
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<shevy>
Liru, yeah I hate rewrites, so when you wrote you dont have much right now, I dont have much right now either, in this rewrite. but it feels better, I can throw away many past design decisions and just move on and continue
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<shevy>
Liru it's often best to just write and write and write and then rewrite when it all sucks and continue to write
<Liru>
Yeah, thought so
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<Liru>
I know a guy who contributes to a few gems
<Liru>
I'll show him when I'm done, then watch his reaction to the code
<shevy>
Fuzai it's just how to "think" in ruby, you can think in how you want to change data into something you can use, and for this you use methods usually
<shevy>
like .reject
<neku>
havenwood: lol, sorry. my bad.
<shevy>
or .grep, as Hanmac showed
<Fuzai>
well i don't think grep would work
<Fuzai>
because it's a complex data set coming in
<Fuzai>
but the .reject is something new to me
<Fuzai>
kinda sounds like a .map thing
<shevy>
yeah
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<shevy>
.reject and .select
<shevy>
when you want specific objects or want to do away with specific ones
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<shevy>
slay 'em!
<shevy>
ruby is 90% perfect
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<Fuzai>
I like it alot, it's easier to sound out what is going on once you get the basics down
<shevy>
yeah
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<Fuzai>
from there it just turns into a research project
<shevy>
it's a bit complex taken together though
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<Fuzai>
I've been using it since the 1st week of January and i've wrote probably 2,000 lines of code with it
<shevy>
cool
<Fuzai>
I finally decided I needed to re-write everything into an OOP style
<shevy>
I rewrite all the time :(
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<Fuzai>
and emplore all the tricks i've learned along the way
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<shevy>
the thing to ask is always whether a rewrite is really worth it
<Fuzai>
Re-writing doesn't bother me, it just means i've evolved into something that fits better
<shevy>
yes but it's still time
<Fuzai>
in this case it will help me, because it will make it easier for me to debug, and give others a decent example
<shevy>
I only regard ruby as a nice hobby, I should never allow it to suck too much time away
<Fuzai>
right now i don't want to give my code to people learning because i used so many bad tricks
<Fuzai>
I wrote a Robot for a HTTP chat room in Ruby
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<Fuzai>
then i built an interface in jquery / php to basically act as a online console to dynamically generate the Ruby bots
<Fuzai>
so far everything works well and i've got about 30 bots online as we speak
<shevy>
ewwwwww
<Fuzai>
But I think the code is a mess
<shevy>
yeah
<shevy>
better don't show it to anyone else :D
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<Fuzai>
Eventmachine, with globals and no comments :)
<shevy>
ouw
<shevy>
no comments
<shevy>
I think there should always be comments, but they most be minimal, and also useful at the same time
<Fuzai>
Yea like i said, not code i wanna be giving people to learn how to write these things
<shevy>
*must be
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<neku>
hey guys, is it possibile to keep looping over an enumerator when it reaches his end?
<hoelzro>
neku: what would that mean?
<hoelzro>
can you provide an example scenario in which you would do that?
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<neku>
hoelzro: i'm working to a radio player
<neku>
i have a playlist
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<neku>
an when it reaches is end
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<neku>
i want to start again from the first song
<hoelzro>
oh
<hoelzro>
so you want a circular enumerator
<neku>
yep
<hoelzro>
that's easy enough
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<neku>
hoelzro: the problem is I am on an enviroment where exception have an high computational cost
<neku>
and I am wondering if there is a property of enumerator that let achive that
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<CyberMaN>
if obj == enum.last set whatever incremental value you have to 0 again?
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<Fuzai>
[1,2] << [3,4] yields [1,2,[3,4]]. How do I join two arrays so my return looks like [1, 2, 3, 4] ?
<neku>
ok, found it guys! #cycle return an enumerator like that
<hoelzro>
huh
<hoelzro>
I looked for cycle, but couldn't find it
<hoelzro>
what class is it on?
<neku>
Enumerable
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<hoelzro>
crazy
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<Hanmac>
on newer ruby Enumerators have size method where you can look how many iterations the enum will take ... for sample ary.cycle(2).size == ary.size * 2
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<Fuzai>
Shouldn't I be able to use .map with the same variable i would use .each with?
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<Fuzai>
I was using db.query("select * from table").each do |row| and i tried to move it to a db.query("select * from table").map{|row|} and i get an error of an undefined method
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<shevy>
Fuzai what do you mean "same variable?
<shevy>
.map means apply-on-each
<shevy>
.each just iterates through the collection/container
<Hanmac>
... Fuzai ithink it does not include the Enumerable module ... try db.query("select * from table").each.map do |row|
<Hanmac>
... and when this returns "no block given" then blame the autor if it
<Fuzai>
i'm trying to .map on a db.query() and it's failing, i used to use an each here, i'm confused because I thought if a variable supported each it would support map as well
<Fuzai>
ok i'll try that
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<atmosx>
anyone good with regexp?
<Fuzai>
still no luck :(
<Fuzai>
lots of people are good with regex atmosx
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<atmosx>
I'm using this string: list = dna.scan(/(atg).*?(tga)/) … but instead of matching from 'atg' to 'tga' it matches ['atg' 'tga']
<atmosx>
any idea why this happens?
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<Fuzai>
so your string looks like 'atgxxxtga'
<Hanmac>
atmosx: ? dna.scan(/atg(.*?)tga/)
<Fuzai>
ty :)
<atmosx>
Fuzai: yes
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<atmosx>
Hanmac: thanks :D
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<atmosx>
hmm but that doesn't match atg and tga
<atmosx>
lol
<Hanmac>
so you want that included or not?
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<atmosx>
ah k found it
<Hanmac>
this maybe what you want: dna.scan(/atg.*?tga/)
<atmosx>
Hanmac: yeap :-) thanks
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<PaulePanter>
Hi. Is there an abbreviation for `a => verylongvariablename if verylongvariablename`?
<PaulePanter>
So I can somehow avoid typing the variablename again?
<PaulePanter>
(Workaround is using an editor with completion.)
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<PaulePanter>
Just to broading my horizon, what would be the abbreviation when this is no hash literal?
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<Hanmac>
PaulePanter: the {} is the hash literal
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<PaulePanter>
Hanmac: Thanks.
<banister`sleep>
Hanmac: did you like BMO lost
<Hanmac>
banister`sleep: the bubble at the end was creepy
<banister`sleep>
Hanmac: BMO loved dat shiz though
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<tommylommykins>
PaulePanter: If you want to add something to a hash only if it exists, you possibly want something like "data[a] = longname if longname"
<tommylommykins>
or maybe "... unless longname.empty?", depending on the type of longname
* tommylommykins
doesn't think there are any sexy shortcuts for it
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<PaulePanter>
tommylommykins: Thanks. Good to know.
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<PaulePanter>
Thank you all for your help!
<Hanmac>
you can look at hash.merge
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<tommylommykins>
I guess also, depending on what you're using the hash for, it might be better to add a into it anyway?
<tommylommykins>
and just leave it pointing at nil or "" or 0 or whateve it is
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<banister`sleep>
Hanmac: i thought the most recent episode sucked
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<Fuzai>
Is there anything that would specifically block a list do |entry| vs. list { |entry| } ?
<Fuzai>
I'm reading this API that is all using do end blocks and i'd like to move to the other one
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<Fuzai>
https://github.com/obrie/turntabler <-- That's the API i'm looking at, if you scroll down you can see the client.on :event do |data| end blocks i'm referring too
<Fuzai>
to
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<spider-mario>
Fuzai : the difference between do |x| … end and {|x| …} is purely stylistic
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<Fuzai>
that's what I thought
<waxjar>
only thing you have to keep in mind is that arguments need parenthesis when using { … } to pass a block
<spider-mario>
do … end blocks are typically used when the block is passed for its side-effects
<spider-mario>
is that right?
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<foofoobar>
so when installing a gem via "gem install rails"; the installation of the gem is fast. What is really slow is the creation of the "ri" and "rdoc" documentation. Why does that need so long?
<foofoobar>
s/creation/installation
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<waxjar>
spider-mario: there are two conventions, one is the side effect thing, the other one is { } for single line blocks, do .. end for multiple line blocks
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<shevy>
why arent there more ruby-to-c bindings?
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<_bart>
shevy: there are quite many
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<waxjar>
i was wondering, would rack rewritten as a C extension boost performance much?
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<injekt>
waxjar: it wouldn't improve rack in the parts that rack needs improving
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<shevy>
I hate rack .ru files
<BinaryMaster>
Am I wrong in thinking that the following example should create a new link even if one is already there? FileUtils.ln_s src.full_path, destination_path, :force => true
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<waxjar>
is that because of a design flaw injekt?
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<Jon30>
is there a way to make .each loop itterate through every second item?
<Melnorme>
psych-shield only works with the Psych parser
<Melnorme>
rake aborted!
<Melnorme>
...now how do I fix? Do I need to change yaml parser from something to Psych? If so, how? if not - I got no idea...
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<r0bgleeson>
Melnorme: what does YAML::Engine return?
<r0bgleeson>
Melnorme: what version of Ruby?
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<Melnorme>
how do I ask about yaml? ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux]
<r0bgleeson>
Ruby 1.8.7 uses syck.
<r0bgleeson>
1.9 uses Pysch.
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<r0bgleeson>
well, you can choose on 1.9
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<Melnorme>
ah. So I need to install newer ruby?
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<Sou|cutter>
you probably shouldn't be using 1.8.x at this point since it will be unsupported this summer
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<Sou|cutter>
at least as far as MRI
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<wwalker>
I've got a strange problem. I'm using koala / omniauth the retrieve auth tokens. the token I get from token = request.env["omniauth.auth"]['credentials']['token'] looks like a token but varies in length from 215 to 221 characters. If I go to the token generator on facebook I get a 228 character token every time
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<wwalker>
if I use the 228 I get manually it works, but when facebook hits my call bath the omniauth token is short and doesn't work.
<wwalker>
I was trying to find somewhere with a trustworthy set of ruby 1.9 rpms for centos, but no joy. (I need them too....)
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<r0bgleeson>
wwalker: can't use fedora's?
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<Phibs>
when using Net::HTTP on Ruby 1.9.3, can I force it to use a specific record type like 'A' or IPV4 only ?
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<wwalker>
r0bgleeson I can probably take the ruby packages from fedora and rebuild them after changing a couple of paths. It would need to be able to co-exist with the default ruby .
<r0bgleeson>
wwalker: im not sure if the exact option is --program-suffix, but there's definitely a switch for that
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<Phibs>
nobody eh
<wwalker>
r0bgleeson: also needs a separate lib dir, but that may happen already. It's not hard, just time consuming. And I'm at 60/hrs a week a t the moment, so it'll keep getting pushed out... :-(
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<r0bgleeson>
wwalker: yeah, i just use rbenv+ruby-build which keeps the effort to a minimum :)
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<Phibs>
880 people in here and nobody knows the internals of net::http and ruby dns :)
<momomomomo>
Phibs: Post your code to http://gist.github.com/ (all related code and errors), and then come back and explain: What you're trying to do, what the issue is, and what you think has gone wrong. This will help people be able to digest/understand your problem. Also check this out when you get a chance: http://www.catb.org/esr/faqs/smart-questions.html
<Phibs>
nod
<Phibs>
fair enough, but the code is proprietary unfortunately :(
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<momomomomo>
hard for us to help you when we don't know what the issue is.
<wwalker>
r0bgleeson: does rbenv handle system wide now? or is it per-user?
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<slobad23>
Could someone please explain the difference between: def return_block yield end compared to def return_proc(&proc) yield end
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<slobad23>
They both take a block and execute... are they just different methods of doing the same thing?
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<MrZYX>
the later one captures the block, converts it to a proc and assigns it to the proc variable
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<slobad23>
Is that conversion an unnecessary overhead? The end result appears the same to me.
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<MrZYX>
if you don't do anything with the proc variable, yes
<slobad23>
Ah okay. Following simple examples is... too simple :-) Thanks for the clarity on that one.
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<slobad23>
This book just shows a yield on each one. Nothing too funky going on inside the method.
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<MrZYX>
the main usage is passing it to another method
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<slobad23>
I have spent the last... year I guess, getting as much Javascript knowledge as possible. Ruby is a new world with some familiar concepts and some rather odd (yet very cool) ways of doing things.
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<slobad23>
MrZYX, will have to go through the Ruby online docs to check for differences between this book and 2.0. Any immediate gotchas I should be aware of?
<MrZYX>
no major ones really, 2.0 got keyword arguments, lazy enumerators and some methods return arrays instead of enumerators now (there are still enumerator alternatives)
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<wuest>
Are there any documented changes to regexps in 2.0? I didn't see any at a glance when 2.0 was released, but code that works on 1.9.3 is breaking on 2.0 (specifically, String#scan looking for escaped hex code ranges breaks with invalid multibyte escape)
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<spider-mario>
but that shouldn’t be a problem anyway
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<spider-mario>
any valid ASCII string is valid UTF-8 as well and represents the same text
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<wuest>
Indeed. Interesting.
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<xorro>
anyone know how this is possible? -> [-43759].pack("n") I don't get how ruby is packaging a negative number as an unsigned short?
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<xorro>
in python the equivilent would be struct.pack('!H', -43759) This would cause an exception though because it's a negative number
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<xorro>
i don't get what ruby does to make it work
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<wuest>
xorro: can you tell me the relationship between those two numbers? If you had, let's say, a 24 bit integer, what would the two numbers look like in binary?
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<wuest>
Specifically, unpack that packed value. If you truncate the high order byte of the aforementioned 24 bit integers, you'll find the result to be the same. :)
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<aedornm>
Is the date format correct? "yyMMdd-T-hhmmss" = "130418-T-142510"? If not, what is T? What is the correct format? Answered: Yes, it is the correct format: T is on the ISO 8601 specs.
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<aedornm>
Words ... they fail me.
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<spike|spiegel>
aedornm: that doesn't look ISO to me
<aedornm>
Let's cite an ISO spec, and then proceed to confirm the wrong format for that spec. Obviously this is the cherry pick what you want from a spec and when questioned about the random changes refer to the original.
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<aedornm>
spike|spiegel: Indeed it does not. That's why I questioned it and the guy refers back to ISO 8601. I'm working with geniuses here!
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<cpruitt>
Can anyone offer some insight into an error? (Please point me to a different channel if this isn't appropriate here). I'm working with a colleague who's having an issue installing the mysql2 gem. He's done a complete removal / reinstall of MySQL (OS X 64 bit) and is using rbenv. Error indicates missing mysql.h but it's very clearly installed. This is the specific error. https://gist.github.com/cpruitt/402f2d111dee1193d4a7
<cpruitt>
Trying to install directly (gem install) as opposed to using bundler.
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<aedornm>
cpruitt: That realy means your compiler environment does not see mysql.h ... So if you say you have it installed, it's not looking for it in the directory you believe it to be.
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<CyberMaN>
I have a string, like this one: "test\r\n". The important thing to realize here, is that this is not a string literal, it is read from a file. Now, I want to manipulate each string byte by byte, but no matter what I do, \r and \n are treated as two bytes
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<CyberMaN>
How can I go past this behavior?
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<spike|spiegel>
CyberMaN: you mean .each_char ?
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<CyberMaN>
spike|spiegel; seeing the same behavior. tried both
<MrZYX>
CyberMaN: they are two bytes?!
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<MrZYX>
do `man ascii`
<CyberMaN>
MrZYX; when I view the file normally, \r\n are interpreted by the text browser (notepad, notepad++, visual studio)
<CyberMaN>
I am not an idiot
<aedornm>
If you want to replace CRLF with just a LF then you can do "test\r\n".encode(universal_newline: true) #=> "test\n"
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<MrZYX>
so you want to threat two special bytes as a single one?
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<CyberMaN>
when I read the line from the file, the string contains "test\r\n". Is it not logical that when I iterate with each_char, \n would be 1 character instead of two?
<CyberMaN>
it is an escape sequence, after all
<aedornm>
And then parse over the returned string ... otherwise you need to tell it to just ignore one or the other and continue on
<spider-mario>
no, not really logical
<aedornm>
CyberMaN: No, that's not logical at all.
<CyberMaN>
:|
<spider-mario>
the file does contain \ and n as separate characters
<MrZYX>
again, man ascii
<CyberMaN>
oh my god
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<MrZYX>
they are two bytes and two characters
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<CyberMaN>
spider-mario; if so, how can all text browsers/editors filter it normally?
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<CyberMaN>
how can I view the text with \r\n INTERPRETED?
<CyberMaN>
if I opened it in notepad it would show \r\n
<aedornm>
CyberMaN: It's not going to assume, by itself, to do something. But you can replace it using the encode method as already stated.
<spider-mario>
by performing a manual substitution, for example
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<bean__>
*sigh* dev at work is insisting on using `curl ` calls instead of using curb or other net/http libraries
<bean__>
:(
<bean__>
makes me a sad panda
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<MrZYX>
bean__: just overwrite Kernel#` :P
<bean__>
haha
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<csmrfx>
whats wrong with using curl, then?
<qubit>
If a ruby script is running an external program via %x{} and the script receives a signal such as SIGTERM, is there a way to pass that signal on to the program being run through the %x{} before exiting?
<bean__>
I would just rather he use curb.
<csmrfx>
why?
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<bean__>
because I don't like using backticks inside of scripts when I can programatically build the request
<MrZYX>
no need ot spawn a shell and a process?
<bean__>
^
<csmrfx>
bean__: backticks is your point?
<csmrfx>
lel
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<csmrfx>
eek, spawning processes *makes a lady-on-the-table-imitation*
<csmrfx>
man, I wish my problems were as insignificant and artificial as yours
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<bean__>
jesus, aren't you condescending.
<MrZYX>
qubit: nothing automagical that I'm aware of, maybe have a look at $? and check the return code
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<csmrfx>
qubit: how did you start the script?
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<csmrfx>
assuming it is in a normal process, you just send the signal
<csmrfx>
you can use kill
<csmrfx>
bean__: see qubits prob, forking processes and using systems infra for your things is perfectly valid thing to do, imo
<bean__>
sure, i never said it was invalid, i just prefer to use curb, etc, if available
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<csmrfx>
qubit ps. the pid seen with $?.pid
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<csmrfx>
bean__: well, newsflash: curb uses curl
<bean__>
no, it uses libcurl
<bean__>
not backticks out to curl
<bean__>
you really don't need to be a dick csmrfx
<qubit>
csmrfx: $? will be updated even if the script receives a signal before %x has completed?
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<csmrfx>
great q
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<csmrfx>
I must be dyslexic, didn't realize you mentioned %x{}
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<cpruitt>
aedornm: Sorry, I had to step away. Thanks for the reply. Unfortunately we've also tried specifying the mysql config file and that doesn't seem to work either. It's like nothing we do will specify the correct location and the error isn't telling me the full path it's trying to read.
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<csmrfx>
qubit: to me it seems it will be updated
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<qubit>
csmrfx: sweet
<qubit>
ty, i'll give it a shot
<netto>
hello guys, for years I had a form with a wysiwyg (description field), so now I want to convert these html to plain text, because I'll use only a textarea in edit file. can you recommend something better than 'html_massage'?
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<qubit>
csmrfx: didnt work. $? only updates once %x completes. if it receives the signal while it's executing it fails
<csmrfx>
yeah
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<netto>
yeah, I tried nokogiri, but it's almost like .gsub("\n","<br>") command, i dont see too difference. for example when I have unordered list
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<netto>
jrabbit:
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<csmrfx>
qubit: oh, fails? independent of the signal?
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<qubit>
csmrfx: fails, $? isnt updated. For example `%x{sleep 60}` and then SIGTERM the script while the sleep is still running
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<csmrfx>
qubit: ok, so "$?" fails, not the process?
<jrabbit>
netto: oh another option could be to convert to markdown
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<qubit>
csmrfx: if I put in a Signal.trap, $? is not updated when the trap executes
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<csmrfx>
lol surprise: I sent my process SIGTERM and my process died?
<netto>
yes, theres a gem called 'reverse_markdown'
<csmrfx>
wonder why?
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<qubit>
csmrfx: I'll just launch the pid in a fork or something and git the fork's pid, and then just wait for the fork to exit
<qubit>
s/pid/program/
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<jrabbit>
netto: it'd probably take more of the stuff you want into account
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<jrabbit>
netto: I can't see it being perfect but probably good enough
<netto>
jrabbit: I'll try, but I still think html_massage convert to a better plain text, but the problem is: there a lot of gem dependencies
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<csmrfx>
qubit: you do realize that SIGTERM tells processes to terminate
<csmrfx>
+?
<netto>
jrabbit: yeah, Im trying to get the best solution
<qubit>
csmrfx: yes, and it can be trapped via Signal.trap("TERM")
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<jrabbit>
oh html_massage even does markdown out
<qubit>
csmrfx: all signals other than SIGKILL can be caught
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<qubit>
err, and SIGSTOP
<jrabbit>
netto: they don't have that many deps
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<aedornm>
cpruitt: You can pass the locations when doing the gem install: gem install mysql -- --with-mysql-dir=/usr/mysql --with-mysql-lib=/usr/mysql/lib --with-mysql-incklude=/usr/mysql/include .. or whatever they may be
<netto>
jrabbit: yeah, I looked at reverse_markdown but the markdown doesnt make a lot sense to nooby people (my audience)
<aedornm>
gem install mysql2 even
<netto>
jrabbit: what do u think?
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<csmrfx>
qubit: how about Process.pod
<jrabbit>
netto: use html_massager
<csmrfx>
*.pid
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<jrabbit>
netto: I don't see why dependencies is a bad thing. Just means they didn't reinvent the wheel
<cpruitt>
aedornm: Thanks. I'm pretty sure I've tried that but at this point I've tried so many things I might not have done it right. I'll give it another shot. Thanks very much for the reply.
<qubit>
csmrfx: that gives you the pid of the script, not the thing being run
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<netto>
jrabbit: cool! I said that because I'm new to rails, I thought many gems = bad practice
<csmrfx>
yes
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<MrPoT4tO>
hey guys, who here can help me with netbeans and ruby gems? I wanna use the latest ruby version and all (Linux). How do I install it ?
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<MrPoT4tO>
(if there's a guide I can follow, also that can help)
<csmrfx>
qubit: maybe you wanted spawn instead
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<nezumi>
Depending on the distro, there should be packages available
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<csmrfx>
qubit: or, IO.popen3 or whatever that is these days
<MrPoT4tO>
it's kubuntu nezumi
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<MrPoT4tO>
I'm looking for them, but only shows an old version for some reason. What if I download it from the site? do I have to put it in my usr/lib folder?
<eval-in>
csmrfx => /tmp/execpad-8ad4bb9973f4/source-8ad4bb9973f4:2:in `<main>': undefined local variable or method `www' for main:Object (NameError) (http://eval.in/17490)
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<symme7ry>
I'm unable to create an AES cipher of key length 128 .. cipher = OpenSSL::Cipher.new('AES-128-CBC') then cipher.key_len = 128 gives an error.. anyone know why? OpenSSL::Cipher.ciphers lists 'AES-128-CBC' as a valid option
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<csmrfx>
pastie?
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<csmrfx>
also, ruby --version
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<csmrfx>
symme7ry: well, your arguments are wrong afaics
<atmosx>
Guys, in this situation I use the variable list which in outside the scope and cannot be used in printf. I usually get by this sort of situation by using $list instead of list… but what's the common way to deal with this? https://gist.github.com/5454649
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<atmosx>
Should I use $list which is kinda hard-coded or maybe define list is a 'list' earlier? orf_list() returns an array or elements.
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<MrZYX>
list = nil before the block should do
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<csmrfx>
symme7ry: docs even mention this for .key_len: Under normal circumstances you do not need to call this method (and probably shouldn’t).
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<g3org3s>
hey there;, i am having a problem with ruby ... maybe u can help out plz :) http://pastebin.com/81xSvQDr
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<atmosx>
g3org3s: why are you running this as root?
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<csmrfx>
>> require 'benchmark'; def tst; list = []; t = Benchmark.realtime do; list = 1; end; p list; end
<atmosx>
secondly I know of no gem called memcacheex
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<csmrfx>
tylersmith: thx
<tylersmith>
$500 plz ;p
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<csmrfx>
atmosx: owes me 5k, ask him
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<tylersmith>
oh, then I meant $5000
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<g3org3s_>
sorry disc
* csmrfx
dodges the inginite loop
<atmosx>
I'm Greek so I'm broke by default.
<g3org3s_>
atmosx: is it the issue ? running as root ?
<atmosx>
g3org3s: no that's just stupid.
<slobad23>
^^
<atmosx>
g3org3s: the issue not finding the required gem.
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<slobad23>
can you def tst without adding an end?
<atmosx>
g3org3s_: which that either is not installed or it's installed (most likely) in a path that root user can't find it when running ruby. that's why people use rbenv, rvm or install ruby system-wide in /usr/local/
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<csmrfx>
slobad23: wait what?
<atmosx>
slobad23: why you would wanna do that?
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<slobad23>
Just glanced at the code line above and it contains "def tst;"
<csmrfx>
well, methods are defined by code between def and end
<csmrfx>
so, no end, no joy
<slobad23>
Sorry, my bad, it's the syntax on the IRC line to show the code. I couldn't read it properly :-)
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<slobad23>
They should make a tag for IRC to show your code indented with syntax highlighting.
<netto>
csmrfx: i dont know how to debug this error
<atmosx>
g3org3s_: then try "locate mkmf"
<netto>
i'm only access the url
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<csmrfx>
g3org3s_: remember, with debian you either 1) install rubygems -program manually and gem install -- or 2) apt-get install both ruby, rubygems and the gems.
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<TTilus>
csmrfx: actually as of wheezy apt-installed stuff satisfies gem dependencies
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<TTilus>
so you can actually mix and match
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<csmrfx>
yeah?
<TTilus>
but im blissfully unaware of any details
<cpruitt>
Resolved an issue with msql2 gem not building extensions. Required downgrade from MySQL version 5.6.11 to 5.5.31. Can anyone recommend a good place to look to see if there is a known issue with using the latest version of MySQL?
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<csmrfx>
I'm still on squeeze
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<csmrfx>
cpruitt: can you even imagine all the factors from OS, OS version to ruby implementations?
<csmrfx>
Does mysql have public bug tracker?
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<TTilus>
cpruitt: already tried googling the error message + some keywords
<cpruitt>
csmrfx: I understand. I'm not so much asking about a cause, I'm asking about the best place to look for / ask about the details. A general Ruby IRC channel doesn't seem like the best place for a discussion of a specific gem (though I could be wrongs, you can correct me)
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<csmrfx>
you ask your question and maybe get lucky
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<rubycode>
hi. how can I force minitest to continue running my unit tests after a single assertion failure?
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<TTilus>
rubycode: it doesnt?
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<cpruitt>
TTilus: Yes. The error is that the compiler can't find mysql.h, though it's clearly installed with the OS X binary. Specifying all the relevant paths does not resolve the error, while rolling back to an earlier version installs the gem without any issue or special config. I'd just like to do my homework & see if I can figure out why this is an issue.
<g3org3s_>
atmosx: csmrfx i couldnt find the package .... i added sources to my cache, now updating then i will try to find the package
<cpruitt>
That error occurrs with MySQL version 5.6.11 but not with 5.5.31
<rubycode>
TTilus: within the same test. i am driving some data thru a unit test case.
<cpruitt>
If there's a legitimate problem, I'd like to report it, but I don't quite know how to go about looking for any info.
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<netto>
csmrfx: I tried: >> Sanitize
<netto>
=> Sanitize
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<csmrfx>
cpruitt: well supposedly it's the mysql2 gem
<rubycode>
also is there a chat for total ruby newbs
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<rubycode>
cos i r.
<csmrfx>
this is it
<csmrfx>
welcome
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<rubycode>
awesome.
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<rubycode>
I have a hash, and some of the elements in it, but not all, are hashes of hashes, or arrays of hashes.
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<cpruitt>
csmrfx: Yes. Well, more specifically it's the compiler trying to build and link against libmsqlclient. I t can't find a header, but I've confirmed that the header is there. Something is different between the installs of those MySQL versions.
<rubycode>
how would i go about converting all integers in that structure into strings"
<rubycode>
?
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<cpruitt>
I'm sorry If I'm phrasing the question poorly.
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<MrZYX>
rubycode: that sounds like a silly requirement, what do you actually want to achieve by doing that?
<cpruitt>
After I resolve an error (especially if it requires a downgrade) I always try to thorough ally understand why it happened and that's what I'm trying to do here. Find the cause, not just the fix.
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<rubycode>
MrZYX: crack xml and json parsers dont parse integers the same way. json parser spits out integers and xml - strings.
<rubycode>
i need to unify them.
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<Sou|cutter>
rubycode: use recursion
<rubycode>
Sou|cutter: i dont know when i will get a hash or an array :(
<MrZYX>
you can check with is_a?
<rubycode>
so recursion with a switch statement?
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<Sou|cutter>
rubycode: yeah
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<rubycode>
ew.
<g3org3s_>
atmosx: i installed it ... still same error ... the error basically says i need the gem memcacheex installed ? right ?
<rubycode>
i was hoping there was some kind of majik .inject I could use or something
<rubycode>
can i not inject this somehow?
<atmosx>
g3org3s_: hm no
<atmosx>
if required that gem will be installed aumatically
<MrZYX>
rubycode: nope, also .map on a hash doesn't return a hash
<csmrfx>
rubycode: start with each
<csmrfx>
or map
<atmosx>
some gems need header files. You probably need some -dev packages which I don't know where you will find since I never used debian for anything
<atmosx>
I use gentoo/freebsd and macosx
<g3org3s_>
atmosx: souldnt it tell me what packages i need ? "technically speaking"
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<banister`sleep>
rubycode: there's always room for cleverness, but you have to figure it out yourself :)
<banister`sleep>
i think it's more of a programmer virtuosity question than a language question
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<cpruitt>
rubycode: Would it make more sense to use a class of your own design that keeps the hash / array representation internally? You then define a method to get a value and it converts your integer when called?
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<atmosx>
g3org3s_: yes, it does.
<rubycode>
cpruitt: it would make sense, yes.
<rubycode>
i just dont know how to implement this
<atmosx>
g3org3s_: but you need a debian-guru to tell which exact package you're going to need. Try to #debian ask for some ruby user… it's easy for someone who knows the system to solve this kind of thing
<cpruitt>
Hard to say without really knowing what you're doing. You have any existing code?
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<cpruitt>
And what does your data structure represent?
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<rubycode>
cpruitt: it represents an XML object i recieve from a rest call.
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<cpruitt>
rubycode: But how complex is that? Is it completely arbitrary or does it follow a predictable pattern? (e.g. invoice > line items > line item details)
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<rubycode>
cpruitt: predictable.
<rubycode>
it's a documented call, and its very stable.
<rubycode>
idk why xml parsers are so messy.
<g3org3s_>
atmosx: allrigth will try in debian , tahnks :=)
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<atmosx>
g3org3s_: good luck :-)
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<g3org3s_>
tanks
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<cpruitt>
OK, if it were me (on a better day) I'd use the hash only as a structure for retrieving the data. Then I'd create classes for each of my models. I'd create a class method for each to create an instance from an hash / array. So if the root of my XML is <invoice> I'd call Invoice.new_from_hash(some_hash)
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<cpruitt>
or just require the hash be passed into my initialize method Invoice.new(some_hash)
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<cpruitt>
that initialize method would reach the hash & when it gets to a child (e.g. line item) it'd loop through and repeatedly call it's own add_line_item(hash_item) which would instantiate a new line item instance & read the data
<cpruitt>
Then you have all the opportunity in the world to massage your data
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<cpruitt>
Now, on a bad day, I'd just use a whole bunch of hash['some_attr'].to_i :-)
<mechcozmo>
Does anyone here use BBEdit for their programming? I'm having a hard time giving up BBEdit's great built-in PHP function autocomplete for the near-total lack of Ruby autocomplete, and hoping that someone here can point me towards a solution to augment BBEdit in this regard.
<lewis>
hi
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<csmrfx>
mechcozmo: mac vim
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<mechcozmo>
csmrfx: I'm not really looking to switch editors (nor start an argument about them)
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<csmrfx>
I dont even have a mac
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<mechcozmo>
Well… thanks anyway I guess.
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<awkisopen>
gem install python
<Olipro>
is there a method to find the n'th occurrence of a char in a string?
<awkisopen>
doesn't work
<awkisopen>
suggestions?
<awkisopen>
(or a substring in a string, honestly, we're not picky)
<eval-in>
csmrfx => /tmp/execpad-0275c128fbdb/source-0275c128fbdb:2:in `<main>': undefined local variable or method `string' for main:Object (NameError) (http://eval.in/17501)
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<canton7>
you'll want the actual string ;)
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<canton7>
I'm an idiot
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<canton7>
>> "foo/bar/baz/boo".split('/').inject(nil){ |s,k| {s => k } }
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<canton7>
and yeah, need that .reverse in there
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<MrZYX>
Olipro: convinced? ;P
<canton7>
I think we win there :P
<awkisopen>
he said emoticonally
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<bitcycle>
Hey all. I am new to ruby. I'm trying to use rvm during development, and I'm wondering is it possible to install the gem from source or symlink the gem from my repository on the file system so that I don't have to keep re-installing the gem each time I make a change and want to test it?
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<Olipro>
well, I'd ideally like something that codeclimate doesn't think is a complete disaster
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<netto>
Guys, I'm using html_massage gem but I got this error: Expected /Users/netto/my-app/lib/sanitize.rb to define Sanitize
<netto>
can someone help me with this issue?
<awkisopen>
is sanitize.rb defining a class called Sanitize?
<MrZYX>
Olipro: well, code analysis isn't there to be blindly trusted, it's there to give you some pointers at what you should stare another day or two ;)
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<Olipro>
let me put it another way, some code that doesn't look like it's from an obfuscation competition
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<MrZYX>
"foo/bar/baz/boo".split("/").reverse.inject(nil) { |hsh, key| {key => hsh} } that are only three chained method calls, once you read up on inject it'll be pretty obvious to you
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<canton7>
yeah, it's the obvious way to solve the problem - build the hash up from the inside. If I saw anyone using any other principle I'd think they were an idiot
<awkisopen>
it would be doable if that were the only path being acted on
<MrZYX>
you're issue is that you need the call a few times? make a method
<MrZYX>
ew, *your
<Olipro>
yeah, I'll extend this out further; it should scale so that the input could be as such: ['foo/bar/baz/boo', 'foo/bar/baz/bez', 'foo/bar/baz', 'foo/bar', 'foo']
<canton7>
using #inject's a matter of taste, but once you're familiar with it (and you should be - it's one of the core members of Enumerable), it's a pretty obvious choice
<canton7>
what would be the output for that input?
<awkisopen>
a single hash
<MrZYX>
Olipro: and then you want n hashes? or just one for all?
<canton7>
an array of hashes, or one bit hash?
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<canton7>
[array of stuff].map{ |x| x.split('/') }.flatten
<Olipro>
MrZYX: it should nest such that the baz hash contains both bez, boo and baz
<canton7>
then as before
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<canton7>
ah, each sub-hash has more than one member in that case?
<canton7>
so a directory-structure parsing problem
<MrZYX>
hmm active_supports deep_merge would make that easy :P
<Olipro>
I'm okay with using a gem
<canton7>
a deep_merge implementation is only a few lines - no need for the whole gem
<MrZYX>
active_support is like a second stdlib, you don't really want to use it unless you're in rails already
<Olipro>
I'm not in Rails
<bitcycle>
Hey all. I am new to ruby. I'm trying to use rvm during development, and I'm wondering is it possible to install the gem from source or symlink the gem from my repository on the file system so that I don't have to keep re-installing the gem each time I make a change and want to test it?
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<csmrfx>
yo dawg I heard you like gems so we put gems in your ruby so you can rubygems
<Olipro>
here's the way I have it right now: http://codepad.org/k56usbx4 - I dislike the way I get the substring on line 7
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<bitcycle>
csmrfx, Hm.. maybe my question needs clarification: I'm developing gem foo. My functional tests require "foo". So, that gem needs to be installed to latest available on the filesystem where I'm developing and making changes to the foo project. How should I accomplish that with rvm?
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<netto>
awkisopen: yes
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<csmrfx>
bitcycle: there is a link to that from the thread
<PaulePanter>
But due to the comma »,« it is hard to use control structures. So I want to “calculate/create” the values beforehand and as there are a lot, I thought just using the same variable names.
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<PaulePanter>
Now only some Ruby magic is needed to connect both.
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<LennyLinux>
PaulePanter: to get all the variable names as sym, an idea would be have them define inside a scope and use local_variables and then using the zip method with argument the same variables
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<LennyLinux>
:P
<LennyLinux>
I dunno if i'm clear
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<PaulePanter>
LennyLinux: Thanks. But I did not get what you mean.
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<LennyLinux>
>> def m; t1, t2 = 1, 2; k = local_variables.zip [t1, t2]; p k; end
<huismon>
how do I interact with local users/groups in ruby?
<injekt>
A124: that's an infinite hash, if that's what you mean
<huismon>
like list users, groups, add users, etc
<ericwood>
what operating system?
<huismon>
ericwood, sorry, linux.
<A124>
injekt: Yeah. But this is the proc way.
<ericwood>
use the system() command, or backticks to run commands
<otters>
injekt: that's nicer than how I would do it
<LennyLinux>
PaulePanter: you can even avoid listing all variables using local_variables.map { |x| eval x.to_s } as zip's argument. Pretty ugly though
<ericwood>
just like you would from the command line
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<huismon>
ericwood, seriously? That's dumb, why isn't there a ruby api built?
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<injekt>
A124: huh?
<ericwood>
because that's extraordinarily platform-specific
<ericwood>
maybe there's a gem
<injekt>
otters: heh, I've done it many times, I did it much much worse many times before I got it right, too :D
<huismon>
ericwood, yeah perhaps
<ericwood>
huismon: but what you want shouldn't be core language functionality...
<otters>
damn you ruby for making hashes too easy
<otters>
I want to use them for everything
<huismon>
ericwood, oh, I agree. I just thought there was a gem or something everyone used.
<DaniG2k>
do you guys know why ruby had hashes right the first time round while python needed itertools before it got the whole key/val thing to work
<DaniG2k>
just curious
<otters>
luck
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<A124>
injekt: You are referencing to proc. Which is not wrong, of course, but I think I was looking for.. sth like tree_block = lambda{|h,k| h[k] = Hash.new(&tree_block) }
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<otters>
yeah, but injekt's method doesn't require an extra assignment
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<A124>
otters: You don't get it .. Do you even know lambda logic to judge?
<A124>
otters: Anyway, hash.to_json
<otters>
what about it?
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<A124>
That's OP, if you use gem like 'oj'
<otters>
"lambda logic"?
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<MrZYX>
A124: in ruby, what's the difference between a lambda and a proc
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<A124>
injekt: Thank you. It's nices notation I came with for .. I would use p.call which seemed not right.
<otters>
I'm still trying to figure out what just happened
<injekt>
:D
<A124>
MrZYX: Is what I mentioned identical to injekt's proc or not?
<A124>
otters: At least I'm not alone
<tylersmith>
and you know lambda logic :(
<otters>
lambda logic, huh?
<otters>
my mistake, I should've studied it
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<MrZYX>
in ruby a lambda is a special type of proc enforcing its argument arity
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<Spooner>
jeebster1, You don't decrypt passwords. You encrypt what the user gives and see if that is the same as the encrypted password that you've stored.
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<jeebster1>
Spooner: you are correct. I'm reading up on this.
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<kinginky>
i'm writing something for a client, storing UTC date/times in the DB. he wants these displayed in EST. i'm using Sequel. does anyone know of a simple way to do this?
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