<mkinitrd>
whitequark: thanks, so regular users, so to speak, don't normally use the exclusive blocks, they use mutexes (and maybe conditional variables)
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<alsu>
oh, thread exits
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<ner0x>
How can I declare a variable so that it will be able to be accessed from the instance of a class?
<ner0x>
User.ROLES as a constant.
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<linusoleander>
I've an event machine application that eats memory on my ubuntu server, but not in OS X
<linusoleander>
In OS X the application takes ~ 150mb after 20 min, in Ubuntu it's 1.3Gb, why is that?
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<flyinprogramer>
so - opinion / best practice question: http://pastebin.com/R86Z6TFB <-- is doing things like that best practice because it uses metaprogramming -- or would it be best practice to parse each attribute into a method within the object?
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<reppard>
anyone know how to change the size of a tmux split?
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<Spooner_>
flyinprogramer, You don't put the , in a %w list. It splits by spaces so the , will be in each string.
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<flyinprogramer>
Spooner_: ignoring that - i have someone that believes "define_method" was built for doing things like that
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<Spooner_>
flyinprogramer, I guess it is. It is just how stuff like attr_reader works after all.
<flyinprogramer>
yah, but i feel like if the objects attributes get more complicated than reading data out of a hash, then it becomes a mess, so why ?
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<Spooner_>
So why what?
<flyinprogramer>
like why do things like that instead of just breaking out each attribute into a method and documenting it, allowing for easy code navigation
<flyinprogramer>
i feel like code like that is misinterpretation of DRY because you sacrifice the ability to document
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<Spooner_>
A lot of people would split it like that and yes, it is breaking maintainability to a degree.
<Spooner_>
There is nothing stopping you documenting, however.
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<flyinprogramer>
how would you rdoc something like that ?
<flyinprogramer>
or would you just write english and do some ascii prettiness ?
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<Spooner_>
In yardoc, @!attribute [r] phone_number
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<flyinprogramer>
Spooner_: aw man i'm silly
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<Spooner_>
I believe you could create a special generator, so you could do type_reader :first_name, :last_name, whatever and then tell yardoc to parse that in the same way as attr_reader.
<Spooner_>
Though I've not tried to do that myself.
<flyinprogramer>
alright
<flyinprogramer>
thanks for the input
<flyinprogramer>
:)
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<Spooner_>
You still end up documenting each attribute individually though (unless you get cleverer with yardoc than I am). I guess there comes a point where meta is just easier and a point where manual is just better. Whether 4 is on one side or the other is debatable.
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<flyinprogramer>
yah
<flyinprogramer>
idk, guess i'm just stubborn
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<Spooner_>
You could just expose #[] instead and document that ;)
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<yoshie902a>
I need the equivalent of JavaScript's getComputedStyle(), but in ruby to identify the CSS style of html elements. Can anyone recommend a solution?
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<ThePicard>
heyo, the first google result for 'ruby isalpha' is something telling you to use regex
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<ThePicard>
can anyone do better?
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<ThePicard>
something like 'a'.alpha? would be nice.
<ThePicard>
yoshie902a: i would guess that python is actually faster than ruby for most tasks
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<ThePicard>
but the amount is probably insignificant except at large scales
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<ThePicard>
ie, they are both really slow
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<ThePicard>
but I've heard this and that about the ruby GC and how it chokes when you are using lots and lots of memory
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<Ohga>
ThePicard: Having taken a peek in my teaching material, the trusty "PickAxe", I think isalpha is missing due to this:
<Ohga>
ThePicard: in ruby a string is a string is a string.. that is, there is no type for individual characters
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<ThePicard>
Ohga: python just checks for every char in the string
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<Ohga>
ThePicard: picking out one character from a string is to get a string with that sole character
<ThePicard>
I think my ruby comes from japan argument makes more sense
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<ThePicard>
And i'm no longer salty about using regexes XD
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<Ohga>
ThePicard: the second thing is that regex is used with most if not all of String's method
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<Ohga>
ThePicard: so this is chosen as the pervasive tool for manipulating strings, no need for low level bit juggling such as that of isalpha
<Ohga>
sure, the regex engine have to do this, but that's outside of the programmers concern
<Ohga>
does that answer your "why?"?
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<ThePicard>
Ohga: sort of
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<Ohga>
note though that I don't *know* this. it's my best guess
<ThePicard>
yeah
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<breakingthings>
Dearest #ruby, how would one create a delegate such that an instance of class "Connection", that holds an instance of class "IO", can delegate certain methods to IO most efficiently
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<havenwood>
shevy: Gah, I wrote that opposite as I meant.
<havenwood>
shevy: What i meant was: true == not(false) #=> true
<havenwood>
nevermind
<shevy>
yeah no worries
<shevy>
my brain is only 5% awake right now :(
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<havenwood>
ditto
<nycjv321>
maybe this is a stupid question what is difference between capybara and selenium?
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<nycjv321>
selenium is just generic tool with langauge interface and capybara is ruby specific?
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<aedornm>
pretty much.. they both accomplish the same things. Watir, Capybara, Selenium, and others, just automate web site interaction. Watir and Capybara are very much Ruby specific, Selenium is multi-language
<nycjv321>
ah! okay
<nycjv321>
I work using QTP and its honestly grueling most of the time
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<aedornm>
You can mimic QTP by using a variety of tools ... like Sikuli, Rspec, and TestLink would be one example, and it would actually be less maddening ;)
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<aedornm>
(though I think I'd rather use QTP than STAF in most cases, so it has its advantages)
<nycjv321>
Trying to pick up on something open source... which tends to be 1000x more efficient :) just gotta get solid background in ruby or java <-- I know Java for most part but like Ruby alot more haha... (first language is perl :))
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<havenwood>
nycjv321: If you haven't already, might wanna check out JRuby, great implementation of Ruby on the JVM!
<nycjv321>
idk I just opened up Selenium today and starting writing some code and interacting with a web page and man it was so smooth (granted slow attributing that to the vm)
<nycjv321>
like if im doing qtp/qc I have to do all this rubbish to write some code
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<nycjv321>
havenwood: I'll have to check it out.. I've been doing ruby for about a month now... it makes me feel right at home (from Perl) I honestly love it.... just need more experience in it...
<aedornm>
My personal favorite is Watir, but Selenium is definitely more popular
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<nycjv321>
I'll have to check it out also
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<nycjv321>
havenwood : is jruby faster then standard C implementation?
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<havenwood>
nycjv321: Generally, yes. Slower startup time, but once its running quite fast.
<nycjv321>
havenwood: ah okay
<nycjv321>
its interesting to see that its possible to do that though
<nycjv321>
yea I just picked up ruby so I'm still a scrub in it, really just a scrub developer haha :P but I really like it... its amazing honestly considering what you can do in it
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<nycjv321>
compared to many other langauges
<havenwood>
nycjv321: As a fellow scrub I agree, <3 Ruby!!
<nycjv321>
havenwood: :D
<havenwood>
nycjv321: I've been having fun playing with Elixir. Ruby is my favorite though. :D
<nycjv321>
I love its integration of regex, and how it hangles oo... <--- main reason why I stopped doing Perl... just picked up Java as per recommendation and then found out about Ruby... gonna be flipping between both I guess
<aedornm>
heh... I started learning Elixir too, well, and Erlang also. Still not sure what I'd use it for just yet
<nycjv321>
wth haha
<nycjv321>
its just soo much lol
* nycjv321
brain explodes
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<nycjv321>
handles*
* nycjv321
facepalms
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<shevy>
how do I find out the encoding of a string again?
<shevy>
x.encoding # => #<Encoding:ASCII-8BIT>
<shevy>
ah yes :)
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<aedornm>
Sometimes... it's just easier to delete and start over. 834 lines of fairly crappy code
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<aedornm>
hmmm... gotta be a better way to handle global logging instead of tossing defined?(logger) all over the place
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<aedornm>
oh, right...
<ryanf>
aedornm: define MyNamespace.logger to be Logger.new(File::NULL) unless specified otherwise?
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<fuzai>
is there an easy way in ruby to start a shell script and capture the output and process on it from the process that started it? What i'm trying to do is make a websocket wrapper around the stdout of a running process.
<fuzai>
maybe to fire off the process as a file handle in read mode or something?
<fuzai>
read-write would be cool too
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<fuzai>
I think i just found it with popen
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<fuzai>
IO.popen("nkf -e filename", :external_encoding=>"EUC-JP") {|nkf_io| this |var| by itself is it being an alias to another variable?
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<Hanmac>
fuzai nkf_io is an io object where you can read the stuff
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<colgron>
hello
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<hoelzro>
howdy
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<colgron>
i need to install the ncurses gem under windows 7, running cygwin. however i get an error: ruby.h does not exist.
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<colgron>
i dont know how to fix this, or why it needs the header in the first place
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<Hanmac>
colgron install the devkit (or the ruby dev package): it does need the header because its an C-Extension and not pure ruby ... and to build an C-Ext that works as a brigde between an lib and ruby you need the header files of both
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<colgron>
Hanmac: thank you. i'll try
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<colgron>
Hanmac: seems that devkit isn't available via cygwin?
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<Hanmac>
i didnt use windows or mingw or cygwin ... but i think that somehow it should be possible to install the ruby stuff on cygwin too ... how did you install ruby on cygwin?
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<workmad3>
colgron: did you read the accepted answer on that?
<colgron>
Hanmac: i just selected it in the cygwin installer
<colgron>
workmad3: yes. but it doesnt solve my problem
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<colgron>
workmad3: he sais cygwin contains all tools, but still i cant install the gem. so it doesnt help me much
<workmad3>
colgron: can you gist the error trace you're geting?
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<workmad3>
(or have you already? I've not been in chan long yet today :) )
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<colgron>
workmad3: i'll try to find a way. this strange terminal emulator is not the best..
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<workmad3>
colgron: yeah... I have to admit, I've never managed to get a stable cygwin environment set up... and I've tried many a time
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<workmad3>
but I haven't tried for a few years now, so it could be different (they may actually have it working now </troll> ) :)
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<colgron>
hehe sounds encouraging
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<colgron>
i just noticed that it seems to use the Embacadero make instead of the one from cygwin (?)
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<fuzai>
if I have an array of hashes and in each of those hashes I have a common variable that I would like to compare to a another variable to see if it exists, is there an easy way to do this with something like include?
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<fuzai>
[ { "port" => 8000 }, { "port" => 8001 }] and i'd like to test if any of the port variables equal my random variable
<fuzai>
because that's how my brain thought it out
<colgron>
Hanmac: i'm at work. here i have to use windows. though i not like it :)
<colgron>
workmad3: ok, no problem :)
<workmad3>
fuzai: change that 'break' to an else ;)
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<colgron>
Hanmac: what better guis are there?
<fuzai>
now theres an idea :)
<Hanmac>
colgron for sample wxWidgets, it has gui for windows, linux and mac too, and it has ruby bindings wxRuby and rwx
<workmad3>
colgron: ones that give you pixels rather than characters? :)
<fuzai>
oh so there is a wxRuby
<fuzai>
thats gotta be a lot of fun to play with :)
<fuzai>
i did wxPerl a very long time ago
<Hanmac>
fuzai: i whould recoment rwx more ... its more rubyish
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<colgron>
mhh
<fuzai>
i'll probably never use it, but i pondered the idea of wxRuby a day or so ago
<fuzai>
that's pretty cool
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<colgron>
well my program is just for getting some hands on experience on ruby, so i could change. but i wanted to write something with gui for the console.
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<colgron>
i used wxWidgets with c++ once, but changed to Qt later
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<fuzai>
i use processing for all my gui stuff
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<colgron>
i have never heard of processing
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<JonnieCache>
its that time again
<JonnieCache>
rails fail time
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<JonnieCache>
apparently its officially technoweenie's fault
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<shevy>
rails exists
<shevy>
that is the biggest fail
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<Hanmac>
what is the current problem?
<colgron>
what is the difference between the gem "ncurses" and "ffi-ncurses". is there a way to get information about gems (via the gem progam) before installing them?
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<shevy>
colgron I suppose ffi uses some automatic way to make bindings
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<shevy>
look at "gem help", it has sub-help stuff too
<fuzai>
test = [ "1", "2" ]; puts "#{a} #{b}" if a = test.shift && b = test.shift # Output is: 2 2
<Hanmac>
shevy ffi does not create bindings, but it access the functions from the lib directly
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<colgron>
thank you shevy
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<fuzai>
whats the proper way to shift two values out at the same time?
<fuzai>
so puts outputs 1 2?
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<colgron>
and thank you Hanmac
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<shevy>
fuzai what
<Hanmac>
fuzai like that? b,a = test.shift(2)
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<fuzai>
oh cool
<fuzai>
yea just like that thank you
<fuzai>
i'm glad i'm asking because the way i would go about it would look like crap compare to how simple that looks
<shevy>
hehehe
<shevy>
Hanmac why did you have b before a ...
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<shevy>
ALL THOSE CONSTANT REWRITES
<shevy>
TO IMPROVE
<shevy>
GO ON MY NERVES
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<JonnieCache>
Hanmac: more paramater parsing yaml leakage stuff
<JonnieCache>
Hanmac: its basically the same vuln as before but exposed by a different bug
<JonnieCache>
people have gone to town on those code paths in recent weeks
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<JonnieCache>
fortunately because rails is so modular its a very easy fix
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<fuzai>
>> test = ["1","2"]; puts "#{a} #{b}" if b,a = test.shift(2)
<whitequark>
taint/trust should be removed actually
<whitequark>
even matz thinks so
<fuzai>
i was thinking equal housing or equal oppurtuinity
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<Hanmac>
whitequark hm okayy and what whould be the replacement?
<shevy>
hehe
<shevy>
how can you remove something if you want to add a replacement for it!
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<shevy>
that's like no change
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<whitequark>
Hanmac: nothing. trust/taint/$SAFE are fundamentally broken
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<Hanmac>
shevy as you can see, true can neigher be tainted or untrusted :P
<whitequark>
sandboxing should be provided by OS/JVM (but I won't trust JVM)
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<Hanmac>
sandboxing and JVM does not fit into one sentence :P
<matti>
;]
<matti>
Hanmac: It does.
<whitequark>
matti: but then the sentence becomes EXPLOITABLE
<matti>
Hanmac: You get your San Ultrasparc II, go to a sandbox.
<matti>
Hanmac: And burry it deep.
<matti>
Hanmac: REAL deep.
<Hanmac>
yeah if you insert an "is not supported by"
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<matti>
whitequark: ;p
<matti>
whitequark: I was sarcastic ;p
<matti>
s/San/Sun/
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<whitequark>
SPARC is a neat architecture
<whitequark>
do you know that OpenSPARC is a GPL'd CPU?
<matti>
No.
<matti>
;]
<fuzai>
whats the proper way to run an external command?
<fuzai>
something like system in perl?
<fuzai>
nm i found it
<matti>
fuzai: Try system.
<fuzai>
it's system
<matti>
fuzai: YOu'd be shocked ;p
<matti>
Hehe
<fuzai>
i wanna do something like system("nohup ./myprocess &") is there an easy way to catch the pid of that?
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<fuzai>
oh i think spawn will do
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<colgron>
it's always best to ask first and then look for oneself ;P
<fuzai>
i looked i didn't see anything, then i asked, and re-read and saw a note that spawn and system were basically the same thing so i investigated.
<matti>
colgron: They way-around ;p
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<colgron>
hrm :( still couldnt get ncurses running on cygwin
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<JonnieCache>
no dont do any work carry on hacking your tools
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<JonnieCache>
you know its the right answer
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<colgron>
JonnieCache: :P
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<fuzai>
so i'm doing a pid = spawn ({},"nohup ./script &") and i'm getting the pid of the nohup which doesn't exist anymore instead of the pid of my script. Does anyone have any suggestions on how to get the pid of my script that nohup is firing?
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<JonnieCache>
get the script to write out its own pid to a file or something?
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<JonnieCache>
im not great at that unix stuff i should probably keep my mouth shut
<fuzai>
i'm gonna try getting rid of nhup first
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<fuzai>
nohup first
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<fuzai>
that didn't seem to he lp either :(
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<fuzai>
is there any other way then spawn or system to fork an external ruby script into the background and get it's pid? i think i'm ending up with the bash shell pid that my script is running in instead of the actual pid still
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<fuzai>
yea i see a defunct sh for the pid i'm being returned from spawn and kill -9 isn't doing anything to it
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<blacktulip>
Hi
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<blacktulip>
I just start using slim ... Can someone tell me how to insert an inline literal pipe symbol `|` in a slim file please?
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<fuzai>
http://www.ruby-doc.org/core-1.9.3/IO.html#method-c-popen looking a IO.popen i read at IO.popen([env, command]) but when I do a IO.popen([ { "LOVE" => "true" }, "/bin/echo $LOVE"]) i get an error that /bin/echo doesn't exist
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<fuzai>
i'm assuming that IO.popen works the same way as spawn does with its environment hash
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<fuzai>
but i don't understand why it can't find /bin/echo, when i do a which from the command line it happily finds it
<fuzai>
Errno::ENOENT: No such file or directory - /bin/echo $LOVE
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<fuzai>
that from irb trying to execute test = IO.popen([{ "LOVE" => "TRUE"}, "/bin/echo $LOVE"])
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<fuzai>
nm i think i'm just going to go back to the spawn idea and have it write it's pid to a temp file
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<a_a_g>
the command should not contain the argument
<a_a_g>
pass that as the third argument
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<stnly>
yoshie902a: you should break the loop once you reach the node with no parent else you will see the error.
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<yoshie902a>
stnly: how?
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<yoshie902a>
I thought the while should do that, if nil, than while should stop right?
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<stnly>
yeah thats true but i think parent.parent is one step too far?
<Hanmac>
something like that: while parent;parents << parent; parent = parent != doc ? parent.parent : nil; end
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<Hanmac>
or::: while parent;parents << parent; parent = parent.respond_to?(:parent) ? parent.parent : nil; end
<fuzai>
someone once mentioned that there was a better option to sleep X when using eventmachine, but my googlefu is failing me, does anyone know what i'm talking about?
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<yoshie902a>
Hanmac: what is the doc variable?
<Hanmac>
the doc in your sample before
<Bracki>
When using a git repo with bundler and multiple gems how deep can they be nested? Or must they be at the repo root?
<yoshie902a>
oh, ya thanks!
<Hanmac>
or: while parent.respond_to?(:parent);parents << parent; parent = parent.parent; end
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<yoshie902a>
Hanmac: I think I'll go with respond_to, it's more generic. I didn't know about respond_to, it's a great method!
<yoshie902a>
thanks for letting me know about it
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<martinklepsch>
!! Unexpected error while processing request: deadlock; recursive locking
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<martinklepsch>
Getting that from my rack app. I'm kind of clueless how to debug it. I stepped through with rdb but was not able to really identify the place where stuff breaks.
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<martinklepsch>
Any advice on debugging this kind of error?
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<yoshie902a>
I'm not sure what redb is, but I used "pry" to step through my ruby code.
<yoshie902a>
s/redb/rdb
<martinklepsch>
ruby debugger
<martinklepsch>
stepping does not work with pry be default, does it?
<banister`sleep>
martinklepsch: no, you need to install pry-debugger plugin
<yoshie902a>
I manually go through, step by step, it gives me more control and I can see the result of each issue
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<yoshie902a>
nonetheless, i'm not great at this stuff, so I might be making my life harder
<martinklepsch>
banister`sleep: cool, last time I checked that was not so easy1 does it provide any significant benefit to rdb?
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<banister`sleep>
martinklepsch: you have the full power of pry
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<banister`sleep>
martinklepsch: which means you can view source for methods/classes, edit them during the debugging process, etc
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<martinklepsch>
ok, great to know :) unfortunately this will probably not help with my deadlock problem :P
<banister`sleep>
hehe
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<yoshie902a>
off to work! good luck martinklepsch
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<shevy>
what is better
<shevy>
class Asciicounter or ... class AsciiCounter
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<aedornm>
ASCIICounter - work that shift key!
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<fuzai>
http://pastie.org/5934236 i'm spawning a process, waiting 3 seconds for it to write it's pid to a file ( it's the first thing the process does ) and then scraping that file for the pid. My code works, but i'm worried that in high io load times that 3 seconds won't be enough. Part of me thinks there is a smarter way to do this. Does anyone have any suggestions?
<shevy>
"This class uses instance variables like Parmesan cheese - just sprinkle it around, the more the better!"
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<shevy>
aedornm it happens to me too though when I maintain some code, and add new features to it. as the years pass by, sometimes code is obsoleted and I forget to kill the ivar :(
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<fuzai>
my process fired with pid 666. I think it's time for break :)
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<aedornm>
shevy: I hate the fact that I wrote it, too.
<shevy>
lol
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<aedornm>
fuzai: That just means it's really a daemon!
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<aedornm>
There's also Configuration and @configuration. They're different YAML files. I don't even know where to start with this, besides a use-case of why not to use a prototype in production
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<shevy>
aedornm hahahaha wait
<shevy>
you use a constant in one case and an ivar in another case?
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<shevy>
aha... in one project I use a config object... CONFIG = Config.new
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<aedornm>
Well, the test "platform" has a configuration, which parts of it has to be global. The "devices" have a separate configuration that's specific to each device. I actually introduced "Configuration" during the "test" platform rewrite, but @configuration within the devices has always existed.
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<aedornm>
I think there's a lot of complexity I don't need, but then there's still quite a bit I do. There's just far too many variables!
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<aedornm>
There's gotta be a better way of doing all of this.
<gosshedd>
hello
<gosshedd>
<georgi_> niggas
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<fuzai>
"Error: unsupported name `SIG9' " Process.kill("9",bot["pid"]) What am i supposed to send for a signal if 9 doesn't work?
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<arturaz>
SIGKILL
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<tobiasvl>
well, judging from the error message you want to send it just "KILL" (it prefixes "SIG")
<crazed>
beat me too it
<crazed>
not sure if you want to send a KILL, TERM might be more appropriate unless you don't care about it shutting down cleanly
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<johnsonw>
Hello all! Can anyone recomend a good ruby to look at for an example of how to write ruby well and idiomatically, how to layout directories and so on. Ideally something simple but complete.
<TomJ>
Is there a simple method that can modify a hash, manipulating the keys? Specifically I have a hash where I want to downcase all the key names. so myhash = {"POSTCODE"=>"NW4 3FP", "COVERED"=>"1"}. I want to end up with {"postcode"=>"NW4 3FP", "covered"=>"1"} . I could write a loop that adds myhash[key].downcase and removes myhash[key] but is there a nicer way?
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<shevy>
hmmm anyone of you guys here use no emacs no vim for your editor while coding ruby?
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<TomJ>
Hanmac: very nice, thanks a lot!
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<Hanmac>
shevy i use gedit mostly for the small stuff
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<shevy>
Hanmac hmm
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* fuzai
hugs eventmachine
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<fuzai>
anyone here familiar with em-proxy? I'm looking at the examples and each of them start with Proxy.start firing off it's own server. Is there anyway to use the existing socket from em-websocket and have it connect back to the ip / port that i want it to?
<fuzai>
basically what i'm trying to do is use the existing websocket, pass it a string that flips the socket into a passthru / proxy to a server running on a loopback address
<fuzai>
i'm reading right now
<fuzai>
umm are you sure thats the right link?
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<Hanmac>
fuzai its something for learning programming
<fuzai>
that's where I'm at at the moment
<fuzai>
i'm basically trying to write function 3which is supposed to open a socket to the little bot itself
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<fuzai>
i'm sorry but i don't find your link helpful
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<chiel>
so, i decided to start working remotely, so i don't have to set up a new machine etc anymore.. however, i used to use pow for running ruby apps locally
<chiel>
mainly because it made it easy to reload and such
<shevy>
oh man
<chiel>
what are other options to reloading apps on every refresh?
<shevy>
what has become of the world
<shevy>
people no longer have ruby running locally
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<chiel>
i have ruby running locally
<chiel>
but since i work on multiple machines, i prefer to keep it remote, and just ssh in
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<ner0x>
Does anyone in here use anything to map out their tests other than the tests themselves?
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<hashpuppy>
if i have lib/sync/something_sync.rb and lib/sync/other_sync.rb. each wrapped in module Sync. how can i include something like lib/sync.rb and have access to Sync::Something and Sync::Other so that I don't have to something_sync.rb and other_sync.rb?
<shevy>
wat
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<shevy>
so all is inside module Sync
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<shevy>
simply require the file where you need it inside your other .rb file
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<shevy>
if lib/sync.rb is your main file, it could require the other two .rb files
<hashpuppy>
ok. i'll just do that
<hashpuppy>
thanks
<hashpuppy>
is that common practice?
<shevy>
the way I usually do it is this:
<shevy>
$: << File.dirname(__FILE__)
<shevy>
and then
<Hanmac>
but you should use require_relative for that
<shevy>
oh no require_relative there, sorry Hanmac :D
<shevy>
require 'pry/helpers/base_helpers'
<shevy>
require 'pry/hooks'
<shevy>
but you are right
<workmad3>
require_relative is evil
<shevy>
they indeed do not modify $:
<shevy>
odd that they can work without $: and also without require_relative
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<workmad3>
shevy: I bet that their test running does '-I ./lib'
<shevy>
hmm
<workmad3>
shevy: and rubygems itself will set up lib/ on $:
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<Hanmac>
i know why, and and i also know thy it may not work when you play with rake tests
<shevy>
aha
<shevy>
it seems I don't have to modify $:
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<shevy>
:)
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<johnki>
Hi. How can I read the ruby docs offline? I tried http://www.ruby-doc.org/downloads/ but these tarballs have absolute paths in them so you can't read them without a server. I just want to read the HTML. what can I do?
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<shevy>
hashpuppy ok seems you dont have to modify $:
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<shevy>
I wonder why I did it... hmmm
<workmad3>
shevy: it used to be a lot more common to modify $: in your own stuff than it is nowadays
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<workmad3>
rubygems now handles most of it, and things like bundler, jeweler, etc also set up rake tasks and other project structures that make it unnecessary in most cases
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<workmad3>
but still, I'd rather ensure my lib/ directory is in $: than resort to require_relative
<shevy>
yeah that seems like a nice thing
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<shevy>
if that works, if I can still use require, then I can kill all those lines in all my little projects :)
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<shevy>
lol
<shevy>
while grepping I found this... in minilight.rb
<shevy>
BEGIN { $:.push( File.dirname( $0 ) ) }
<workmad3>
well, I guess that's a little bit more reliable than adding '.'
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<workmad3>
because at least then it wouldn't change if you changed the working directory during execution :)
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<Hanmac>
imo $0 cant be trusted and should not added to the path eigher ...
<workmad3>
Hanmac: I agree
<workmad3>
Hanmac: but at least it's stable and unreliable, rather than unstable and unreliable :)
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<shevy>
hehehe
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<shevy>
hey can someone in irb do this please:
<shevy>
"".methods.sort.size # => 607
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<banisterfiend>
shevy: what's the point in calling sort before size
<benju>
I installed newgem, because some tutorial recommended it. I ran it and found that it's all broken with modern ruby. Now I can't uninstall it - it just says "ERROR: While executing gem ... (Gem::InstallError)". I'm really suck trying to get going writing a gem. What am I doing wrong?
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<shevy>
Hanmac 73868
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<shevy>
I think I pull in way too much on irb startup...
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<havenwood>
benju: One nice modern option to generate a gem is to use Bundler: bundle gem gem-name-here
<shevy>
aha... that code in a .rb file gives me 164
<Xeago>
how to make an image a hyperlink in markdown?
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<benju>
havenwood: ok thanks. how I am supposed to know what's the old way of doing things and what's the new way when i read about things online? there was nothing to say that newgem was out of date
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<shevy>
benju keep in mind that some blog entries are not always 100% accurate
<havenwood>
benju: A good way is to check the repo, and see if there are modern commits. For newgem: https://github.com/drnic/newgem
<benju>
shevy: where should i look for a right way to do things, for some good enough definition of right
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<shevy>
benju hmm
<shevy>
benju I think the first step is to always understand the minimum required
<havenwood>
benju: Or there are good sites that have metrics on how up-to-date gems are: https://www.ruby-toolbox.com
<shevy>
benju years ago there was only setup.rb :)
<shevy>
that was even before gem
* Xeago
still uses setup.rb
<benju>
I'm letting myself get frustrated, because whatever i try, ten minutes later i find that i'm doing something the old way, and should be using something else
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<beaky>
hello
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<johnju>
How do I specify the version of Ruby needed to run my gem in the gemspec file?
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<poikon>
johnju: you can't (not in the Gemfile)
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<poikon>
johnju: you should do that with, for example, rbenv or rvm
<workmad3>
poikon: bundler 1.2 lets you specify the ruby version ;)
<havenwood>
or chruby
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<poikon>
workmad3: ohreally? :o
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<workmad3>
poikon: but then Gemfile != gemspec
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<johnju>
poikon: what do i do if I rely on a ruby 1.9 feature? if someone gem installs on ruby 1.8 how will they know?
<poikon>
@everyone ignore me i'm drunk
<workmad3>
johnju: it will blow up in their face
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<havenwood>
johnju: if you put a .ruby-version file in the dir, then chruby or rvm will autoswitch.
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<poikon>
it seems i can't read anymore
<workmad3>
poikon: bundler doesn't change to the version though, it just tells you 'this gemfile is set to 1.9.3, but you're running 2.0.0, lol, not gonna work now'
<poikon>
:$
<johnju>
how do you people write useful software like this?!
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<workmad3>
johnju: we struggle along somehow :P
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<johnju>
I come from the Haskell community, and there every library has to explicitly say exactly which range of library and compiler versions it will work wtih
<reactormonk>
johnju, ruby prefers to fail runtime
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<workmad3>
johnju: here's a question to ponder though... the gemspec file is itself ruby... if you declared in that a requirement for ruby 1.9 and then used ruby 1.9 specific features, what would you expect to happen?
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<workmad3>
johnju: (as in 1.9 specific features inside the gemspec)
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<Kuifje>
hi guys
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<Kuifje>
what dirs does ruby look in when using require with a relative path?
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<havenwood>
Kuifje: It checks each dir in $LOAD_PATH.
<havenwood>
s/dir/path
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<havenwood>
Check $: ($LOAD_PATH) array.
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<havenwood>
$: == $LOAD_PATH
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<tuxillo>
k, let me try that. thanks
<tuxillo>
just need to output html code to stdout
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<peteyg>
I'm wondering if it's possible to directly 'include' the code of another module in a certain function. I made a pseudo-code of what I'd like to see here: http://pastie.org/5943396
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<peteyg>
sorry, replace the word module with method*
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<invisime>
peteyg: you can call the method.
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<peteyg>
@invisime: I need have the function that's called propogate to the __method__ variable.
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<peteyg>
Let me create a slightly more fool proof pseudo-code...
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<invisime>
peteyg: ah. if it's more reflect-y than that, yeah. a bigger example would be better. :-)
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<havenwood>
peteyg: by 'include' do you mean call the other method?
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<peteyg>
havenwood: Oddly enough, that doesn't work. It will only print out the method name that came last. See this pastie (working code): http://pastie.org/5943971
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<havenwood>
peteyg: Yeah... I see now what you're saying. Hrmm. I dunno!
<havenwood>
peteyg: my bad: __method__ == __callee__
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<peteyg>
havenwood: Okay, no worries, I'll approach this some other way :). Thanks though!
<havenwood>
peteyg: (Pass __method__ as an argument, with a default set.)
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<ashp>
Hey guys, if I have two hashes I need to merge together, is there an alternative to hash1.merge(hash2)? Right now it's throwing away an entire level of the hash1 to replace it with hash2
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<ashp>
I want them to add, not replace :/
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<peteyg>
havenwood: Yep, that will do. I was trying to see if I could avoid having to pass an extra argument, but alas!
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<peteyg>
(Probably wasn't worth the hassle of avoiding an extra argument passing anyways @_@)
<havenwood>
peteyg: Aye, cool. Well interesting problem!
<Mon_Ouie>
You can use caller to find the context
<Mon_Ouie>
You have to parse the output manually to extract the method name though
<Mon_Ouie>
You need something like ruby-devel probably
<Mon_Ouie>
Oh, you have it
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<cesarstafe>
Mon_Ouie: yes.. is present -> ruby-devel.x86_64 1.8.7.352-7.el6_2 @base
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<Mon_Ouie>
But you still don't have the headers? Check both /usr/lib/ruby/ruby.h and around /usr/include(/ruby)?/ruby.h
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<cesarstafe>
this happens when I want to run the next -> "gem install passenger -v=3.0.19]/returns: Building native extensions. This could take a while."
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<cesarstafe>
and says ... "ERROR: Failed to build gem native extension."
<cesarstafe>
Mon_Ouie: doing 'ls /usr/lib/ruby' I get the list of folders '1.8 gems site_ruby'
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<shevy>
isn't OOP just a fancy name for setting data structures?
<Mon_Ouie>
What's important in (Smalltalk-style) OOP is message passing: you send a message to an object, and depending on what that object is, it will react differently
* breakingthings
smacks around shevy with a large oop trout
<cesarstafe>
Mon_Ouie: I can't find 'ruby.h' file :(
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<Mon_Ouie>
Can you check what files are provided by that ruby-devel package? That sounds like pretty much the only thing it should have
<cr3>
is there a way to invoke ruby to compile a source file using the gems from the system in its lib?
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<cesarstafe>
Mon_Ouie: I will see.. I am really newbie in Centos.. I am used to working with Debian & Ubuntu environments
<cesarstafe>
so.. I guess that something more happens because if not "gem install passenger -v=3.0.19" should works well
<Mon_Ouie>
That's because it's not in the right directory
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<cesarstafe>
Mon_Ouie: ups.. this is the fault of Centos directory structure?
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<Mon_Ouie>
Normally, the directory is decided according to the options passed when ruby was compiled
<cesarstafe>
:-(
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<Mon_Ouie>
So either someone (e.g. packager) manually moved the files (e.g. to respect distribution's conventions) or the different packages weren't built with the same options
<cesarstafe>
I really don't know how to solve it in Centos.. well.. I don't remember having this directory installation problems in Debian and Ubuntu
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<cesarstafe>
Mon_Ouie: what a bad luck!
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<flyinprogramer>
anyone know how to create custom code completion rules for ruby mine ?
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<flyinprogramer>
clear
<flyinprogramer>
stupid me lol
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<havenwood>
johnmilton: Curb or Patron are good options if you want to go the CURL route.
<johnmilton>
cool, ill check this out
<johnmilton>
thank you havenwood
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<havenwood>
johnmilton: Yeah, Nakamura's talk goes into more detail than I can possibly remember! I've enjoyed using HTTParty for simple tasks of that ilk.
<havenwood>
johnmilton: np
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<Eiam>
+1 httparty
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<Eiam>
If you have an array of hashes like hsh = [ {"blah"=>"yay","boo"=>"hi"}, .. repeat] is there a way to do something like hsh.map(&:boo)
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<Eiam>
obviously the keys aren't symbol so to_proc cannot be called on them
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<Eiam>
okay so.. its saying :[] should call this method with this block ?
<Eiam>
I totally don't understand how this code worksh sha
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<Mon_Ouie>
It's creating a proc that calls [] with "foo" on its first argument, and adds all the other arguments at the end
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<Mon_Ouie>
I added the &(block || new_block) just for completeness, in case you'd call the block with yet another block
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<whitequark>
Eiam: the fact that you don't understand how it works should discourage you from using it in production code.
<whitequark>
but whatever.
<deed02392>
is '' suppsed t evauate to true?
<deed02392>
in codepad it doesn't but in my setup it is
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<Eiam>
whitequark: I'm not going to use it, but that doesn't mean I don't want to learn something =)
<Mon_Ouie>
'' evaluates to the empty string. Only nil and false are considered like false in conditionals.
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<Eiam>
Mon_Ouie: okay so recv is the :[] which I got…. *args is "foo" (and anything else pushed in), but what is &block then, and where did *new_args come from?
<interactionjaxsn>
" ".each_byte { |b| puts b } => 32
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<Mon_Ouie>
A string that contains only white space won't necessarily have all its bytes at 32
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<Mon_Ouie>
It could include tabs, etc. and might even be using a non-ASCII compatible encoding
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<interactionjaxsn>
good point. i wanted to demonstrate that something was there.
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<cr3>
how can I set a breakpoint in my code?
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<Eiam>
interactionjaxsn: depends on what you mean by "something was there". For me at least, an empty string may as well not exist
<Eiam>
its not something I generally want to show a user, and " " may as well be "" or nil
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<cr3>
looks like I can simply paste these lines in my code: require "rubygems"; require "ruby-debug/debugger"
<Eiam>
(which is probably why .blank? exists)
<Eiam>
rubydebug19
<Eiam>
although I think it was replaced
<Mon_Ouie>
Eiam: There are many applications where whitespace is important. And being a string or being nil makes an even bigger difference.
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<Eiam>
Mon_Ouie: I wasn't disputing that it was important, I was saying clearly for many cases the distinction between " " and "" and nil are irrelevant
<Eiam>
and []
<Eiam>
at some level all of them indicate "no data present"
<Eiam>
for certain types of applications =)
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<interactionjaxsn>
" ".present? => false
<interactionjaxsn>
Eiam: you have a point
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<Eiam>
I'm dealing with data from all sorts of feeds and implementors have varied on how they designate "no data"
<Eiam>
so .blank? has been a godsend for me
<Eiam>
(because it catches all of them)
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<rubyweapon>
I want to rotate my log files daily. So I use: Logger.new("my-logfile.log", shift_age = "daily") -- so far so good. But I have a feeling that only a small number of log files are retained (last 3 days). Can you somehow control the number of files that should be kept? The only way I found was to give a number instead of "daily", but I still want daily rotation.
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<heftig>
rubyweapon: unsure. the logger never seems to delete/unlink any files
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<heftig>
rubyweapon: maybe something else is cleaning up the directory. are you running systemd?
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<rubyweapon>
heftig: mh it's a jruby rails app running on a server that is not managed by me. Dunno, but I don't think so. The app has been running for a month now and yet there are only logs for the last 3 days.
<rubyweapon>
heftig: but yes, maybe something else is deleting the files. Although I have no idea what that might be.
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<banisterfiend>
Mon_Ouie: have oyu looked at rbcurse?
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<Mon_Ouie>
Nope
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<banisterfiend>
Mon_Ouie: you should experiment with saying "nup" instead, it's slightly edgier and makes u look k00
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<havenn>
wow, computer now officially have over a million cores - time for parallelism? :O
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<drakedouay>
i want to set a string to a value, and tell ruby to ignore any special characters contained in it. It is a password hash and as a result it contains many control characters. So far I have 'var = <<<EOS', but it seems that ruby is still trying to parse the contents. How can I fix this?
<havenwood>
drakedouay: <<-EOS
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