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<jaybe>
is the mac os x gcc compiler that comes with xcode/command line tools sufficient to compile and run ruby?
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<jaybe>
(10.8.3 Mountain Lion)
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<arubin>
jaybe: I know that I have been able to compile several version of Ruby using rbenv install, but I am not sure whether it is using gcc or clang.
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<jaybe>
arubin, by default, apple mac os x uses llvm-gcc-4.2
<arubin>
jaybe: I recommend using homebrew to install rbenv and ruby-build.
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<arubin>
Then use rbenv install to compile Ruby.
<arubin>
Unless you have a more specific need.
<jaybe>
arubin, indeed ruby does compile, but i also read that the default llvm-gcc-4.2 compiles a buggy implementation and recommends installing a stand alone gcc
<arubin>
Heard from whom?
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<jaybe>
arubin, i read about it from a few various resources regarding ruby environments for mac
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<postmodern>
jaybe, use ruby-build to compile ruby
<postmodern>
jaybe, it's what rbenv uses under the hood
<jaybe>
postmodern, yes; indeed; however, the discussion surrounds whether or not the default apple mac os x gcc (llvm-gcc-4.2) produces stable results versus installing and using a stand alone and more modern gcc.
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<postmodern>
jaybe, OSX ships with old software
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<postmodern>
jaybe, llvm-gcc was deprecated in favour of clang
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<jaybe>
postmodern, will `rbenv install` properly reference the upgraded brew libraries without explicitly specifying?
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<postmodern>
jaybe, i don't think so. I think you have to specify CONFIGURE_OPTS for that
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<jaybe>
postmodern, rbenv documentation makes no mention whatsoever regarding choosing libraries, etc.
<postmodern>
jaybe, also i don't think ./configure will check inside homebrew's root
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<codezombie>
shouldn't wrap_parameters work in test environment?
<codezombie>
whoops
<codezombie>
wrong chan
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<jaybe>
postmodern, so… to do this properly… on mac os x (10.8.3)… should i use ruby-build manually, with brew' updated libs/flags… and then set rbenv ROOT environment variable to wherever i installed the ruby builds, so that rbenv can do its magic?
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<postmodern>
jaybe, depends on whether your using rbenv, or just ruby-build and install into /usr/local
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<postmodern>
jaybe, also i think you can do CONFIGURE_OPTS="--with-foo-dir=..." rbenv install ...
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<postmodern>
jaybe, although it might be easier to just run Ubuntu/Fedora in a VM
<postmodern>
jaybe, but of them have ruby 1.9 packages, and updated versions of openssl
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<jaybe>
postmodern, what about just using brew' ruby version(s)? presuming it's always better to self compile to optimize, etc.?
<postmodern>
jaybe, also could do that
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<postmodern>
jaybe, ruby-2.0.0 will run faster if you compile with CFLAGS="-O3"
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<jaybe>
postmodern, sigh… ok - may i please understand your opinion re: the best way to go about this? and back to the gcc discussion… agree llvm-gcc is outdated… so - does that mean i should install a stand alone modern gcc before doing any of this?
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<postmodern>
jaybe, my personal opinion is just use a Linux distro :P
* arubin
has no problems with just using rbenv install...
<postmodern>
jaybe, `yum install ruby` gives me 1.9.3p392, and it's patched to install gems into ~/.gem/ for normal users
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<postmodern>
arubin, if you want to install 2.0.0, you have to do that openssl cacert trick
<jaybe>
i don't have any 'problems' doing that either, however, it's leveraging old compilers and libraries, and has been reported to result in an unstable environment with issues.
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<arubin>
postmodern: It installed fine for me.
<arubin>
jaybe: It is not leveraging old compilers.
<jaybe>
compiled and installed != optimized and or problem free
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<arubin>
Nothing uses gcc on OS X these days.
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<jaybe>
arubin, on mac os x it is/would be
<arubin>
jaybe: Everything uses clang.
<postmodern>
llvm-gcc is gcc
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<postmodern>
jaybe, did you install the CommandLine Tools?
<jaybe>
postmodern, yes
<postmodern>
jaybe, it should give you a recent version of clang
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<jaybe>
perhaps i'm referencing outdated documentation and the llvm-gcc issue is not longer an issue
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<jaybe>
postmodern, i use linux for prod/staging, etc. but my personal box/laptop, and what i often peck out work/development on is os x… and i'd prefer to just work/live natively. is there a reasonably small, optimized, not-annoying VM you fancy?
<arubin>
jaybe: Then why is squeezing every last bit of performance out of ruby a concern?
<postmodern>
jaybe, you should checkout vagrant for standing up a ubuntu VM image
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<jaybe>
arubin, as i stated from the get-go, my quest is not to enhance performance; my quest is to understand and ensure installing and compiling ruby on mac os x, with default compilers and libraries, are not and will not be problematic.
<postmodern>
jaybe, it runs a head-less VM, and sshes in to it for you
<arubin>
jaybe: I have not found rbenv install to create any problems.
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<arubin>
I have JRuby, Rubinius, MRI 1.9 and 2.0 installed.
<postmodern>
arubin, i have seen it have issues for others
<arubin>
postmodern: What kind of issues?
<postmodern>
arubin, mostly due to issues with system libraries being detected instead of homebrew versions
<postmodern>
arubin, openssl issues with ruby-2.0
<jaybe>
arubin, yes; - i get it that you've had no problems. thing is - i've read reports there have been problems with some gems and advanced development. furthermore, i've experienced failed rake tests on the mac, whereas the same tests do not fail on a linux box with similar versioning. hence my concerns and questions.
<postmodern>
arubin, but i think they modifies the ruby-build scripts, to download/compile it's own version of openssl and link against that
<postmodern>
arubin, but this creates potential problems, since your ruby is now using a different copy of openssl, than the system or homebrew's
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<jaybe>
postmodern, recent rbenv properly detects and installs ssl 1.x to ~/.rbenv/* prior to installing/compiling ruby; so that's covered
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<jaybe>
postmodern, but yes/nod - re: your point about differing compiled against ssl vs. system
<postmodern>
where as on linux, the package manager provides modern versions of openssl, readline, bash, etc
<postmodern>
the crux of the problem is that homebrew upgrade/override the system libraries
<postmodern>
*can't
<jaybe>
postmodern, … can't/won't; right
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<arubin>
For good reasons.
<postmodern>
indeed
<jaybe>
.
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<postmodern>
wish OSX came with a package manager
<arubin>
postmodern: I expect it to become more and more like iOS until they kill off their recent popularity with developers.
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<jaybe>
postmodern, so i suppose i should look at a simple VM and my enjoyed flavour of linux. you mentioned vagrant. i'll look into that.
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<jaybe>
it's a bit frustrating, because as arubin states, it *appears* to work fine. and it does work pretty well/fine. however, when one edges out into development, with various gems, and getting near the edge, things start to behave differently, and tests fail, etc. … and that's an issue in the long run.
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<arubin>
Vagrant uses VirtualBox.
<arubin>
It is nice when it is setup.
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<jaybe>
arubin, i'm seriously tempted to 'put up with' the inconsistencies so that i may stay on my enjoyable candy os x.
<jaybe>
i fear i'm too lazy and impatient to deal with VM, config, managing, launching, waiting, etc. … lol pathetic
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<jaybe>
postmodern, i'm going to experiment a bit with the library linking flags, rbenv/ruby-build, and see if that makes a difference.
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<Heimann>
I am doing a class project where I need to brute force a couple of MD5 password hashes in ruby and match them against passwords in a txt file, can anyone point me in the right direction on how to go about this?
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<Heimann>
The passwords are very simple, like: Password and God
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<nanothief>
Heimann: require 'digest/md5'; Digest::MD5.hexdigest('test') returns the md5 hash of 'test'. Then you need is to get a word list (on mac/linux you should find some in /usr/share/dict, otherwise use google), and get the words into an array (eg File.read('words').split("\n")). The rest is should be pretty simple
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<Heimann>
nanothief: yeah that's pretty much what i've done so far, i'm pretty sure we're not supposed to use a word list but rather brute force it, how would I write a hexdigest that iterates through the alphabet + special characters until there's a match?
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<jaybe>
arubin, from stephenson: "Recent versions of OS X have dropped gcc in favor of clang. This works fine for Ruby 1.9+ but not for older Rubies. "
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<nanothief>
Heimann: using a word list is brute forcing it. Attempting to iterate through every single word combination would take far too long. Eg for a 8 letter password (like "password"), there are 26^8 combinations, or 208,827,064,576 (~ 209 billion). Your program will never finish if you do it like that
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<Heimann>
Hm, it says: "The script should then start generating passwords, starting with single character, and then two characters, etc."
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<arubin>
jaybe: Okay. I do not use older versions.
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<nanothief>
I'm not sure then, you'll have to check with your teacher on what is allowed.
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<MouseTheLuckyDog>
If I am running in multiple loops how can I brerak out of two?
<MouseTheLuckyDog>
s/brerak/break/
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<TTilus>
make it a method and return?
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<TTilus>
MouseTheLuckyDog: ^
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<jaybe>
sebastianb, pretty slick; re: vagrant/virtual; thanks for enlightenment
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<sebastianb>
jaybe: yw :)
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<bigmac>
any one read about LD_PRELOAD
<jaybe>
sebastianb, i could see how understanding that, and creating ones ideal setup, then reusing … could be very handy. would be nice to keep everyday desktop environment/system clean and clear from dev cruft too.
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<sebastianb>
jaybe: it's great if you need to write/test something in different environment than currently on your desktop
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<jaybe>
sebastianb, perhaps i'm overlooking, but, i don't seem to find a list of available remote boxes/distributions available. e.g. debian, *bsd, etc. am i overlooking something obvious?
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<sebastianb>
g'nite folks
* sebastianb
&
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<whowantstolivefo>
guys, i've done play with the ruby koans, whats my next stage to understand better ruby fundamentals ?
<tobiasvl>
whowantstolivefo: i don't know what "the ruby koans" offer, but did you feel during playing with them that you wanted to learn more about some aspect?
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<whowantstolivefo>
tobiasvl: you might be know that i wanna learn ruby... since a few months i play with the different examples and i didnt figure out fundamental good, and i've asked and speak with some guys that help people here and they suggested me to koans for beginning and understanding snyax this is why i finished it.. i have some knowledge and koans made me understand some part of ruby.
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<whowantstolivefo>
tobiasvl: and now what next suggest for me :) ?
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<tobiasvl>
no idea, i don't know what "koans" cover
<tobiasvl>
but start making some ruby programs maybe?
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<whowantstolivefo>
tobiasvl: http://rubykoans.com/ <<< if you see this maybe understand me better
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<abhinavmehta>
How to find for standard ruby classes, like Time.rb?
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<canton7>
Eiam, re the #inject discussion last night...
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<canton7>
#inject accepted a symbol before the Symbol#to_proc stuff existed. It was a very common use-case to want to e.g. sum an array, so #inject provided a special shortcut
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<canton7>
(note that you can only pass one of a few number of symbols to #inject - not just any symbol with the same name as a method)
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<canton7>
then people decided they wanted the ability to pass a symbol representing a method to lots of functions, and for lots of symbols
<canton7>
and so Symbol#to_proc was invented, and #inject supported that too
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<canton7>
so nowadays you don't need to call e.g. inject(:+) at all - just use inject(&:+). The former is legac
<canton7>
*legacy
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<Mon_Ouie>
Sure you can pass any method name to inject, as long as the accumulator responds to it.
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<canton7>
Mon_Ouie, funky! Was that the case before Proc#to_symbol ?
<Mon_Ouie>
Sure
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<Mon_Ouie>
It just sends the method to the current accumulator value instead of calling the proc
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<canton7>
fair. Nice, obvious way to do it :)
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<kke>
does someone know how the old mysql gem works? i can't get any results for joined tables, results.fetch_hash(true) gives me "users.name" => "john" etc, but there's no keys for joined tables
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<hoelzro>
kke: what's the SQL you're running?
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<clocKwize>
Morning
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<blf>
Suppose that I have a field which should store only things which can be treated as strings. Is it acceptable (and common practice?) to test for #to_s when setting the field value?
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<blf>
Is there a better way to ensure I'm only storing a string?
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<hoelzro>
so Hash's aren't really hashes any more?
<tobiasvl>
pandy: namespace resolve
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<Spooner>
pandy, You can use test_data.to_yaml which feels more Rubyish
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<hoelzro>
(╯°□°）╯︵ ┻━┻
<pandy>
great, I keep seeing :: everywhere though
<tobiasvl>
pandy: it's the namespace resolution operator
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<pandy>
thanks
<Spooner>
It should be YAML.dump though. It is a method in a module, so should be . - a module/class in a module/class uses :: (though they are technically interchangeable)
<pandy>
I see now!
<pandy>
Wish people would stop trying to be clever and keep the syntax the same :P
<tobiasvl>
the same?
<tobiasvl>
:: is ruby syntax though
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<tobiasvl>
"It gives you the ability to access things that the . operator won't such as constants, modules or non instance methods. It also can remove ambiguity when dealing with local and global variables."
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<Hanmac1>
pandy: about ::,
<Hanmac1>
::b is a method call, ::b() is a method call too
<Hanmac1>
::B is a constant lookup, but ::B() is a method call
<Hanmac1>
that is specialy important because there are Array as a Constant, and Array() as a method
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<Hanmac1>
blueocean: what about: MAX_RETRIES.times { url = get_url; break url if url }
<blueocean>
Hanmac1: oou, nice one. What if I wanna log/raise something when the max_retries is reached? Should I use return instead of break and raise after the loop?
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<Banistergalaxy>
Hi boys
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<becom33>
Im having a trouble with ruby regex I have a string like "<div> <?php echo $_GET['name'] </div>" and I want to catch the "$_GET['name']" and replace it with fix($_GET['name'])
<becom33>
can some one help me with this ?
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<hoelzro>
becom33: what's your current regex?
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<becom33>
I don't have one :/
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<hoelzro>
well, that's a good way to start =)
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<ChristianS>
becom33: are you expecting this channel to do your (home)work for you?
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<dp>
what's the easiest way to find indices that are common through multiple arrays?
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<becom33>
ChristianS,
<becom33>
p "<div> <?php echo $_GET['name'] </div>".gsub /\$_GET/, 'fix($_GET' this is what I was trying
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<becom33>
but the problem is ['name'] value name is dynamic it changes . so I though I can use * in their but doesnt work that way ither
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<injekt>
becom33:
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<becom33>
injekt, wait let me try that
<injekt>
dp: huh?
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<dp>
injekt: I have several arrays of strings being generated. I need to find the strings that are common to any of the arrays, and put them in another, "higher-level" array
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<injekt>
dp: common in terms of what?
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<dp>
injekt: that there is a string "test123" in any index, in more than one of the arrays
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<injekt>
dp: you're going to have to check every array for each iteration, maybe use String#include? to check if those strings include the string you're currently scanning
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<hoelzro>
dp: common to any of the arrays, or all of the arrays?
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<dp>
hoelzro: any
<hoelzro>
dang
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<dp>
injekt: the string is going to be different. imagine this
<dp>
pseudo code
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<dp>
for each value in arr1; for each value2 in arr2; if value == value2 { add value to high_arr; }
<injekt>
oh you're looking for equality?
<dp>
but there will be tens to hundreds of arrays
<injekt>
not index?
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<becom33>
injekt,
<dp>
yes. same string in any of the arrays
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<injekt>
you can probably use Array#&
<injekt>
but tens to hundreds of arrays, this isn't going to be fast
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<becom33>
in "$name = $_POST['name'];".sub(/(\$_POST[^\s]+)/, 'fix(\1)') . the output comes as "$name = fix($_POST['name'];)" I want the ; to be outside the fix() . I mean only the $_POST['dynamic_value'] chould be replaced
<injekt>
becom33: that matches $_ followed by anything until ;
<injekt>
which is what [^;] is doing
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<injekt>
match anything EXCEPT ;
<injekt>
just like the one I wrote before was [^\s] - match anything except whitespace
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<becom33>
injekt, I'm sorry I should have been more clear about this before . the inputs for the regex are dynamic . its possible the string might not contain ; . the only thing I was looking for to replace $_POST['name'] with fix($_POST['name']) . 'name' also can be dynamic since in PHP its a parameter
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<injekt>
I know what it is, if you're going to ask questions please be as precise as possible
<injekt>
otherwise this happens, wasting both of our time :)
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<becom33>
injekt, yes I know
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<becom33>
what I explained before it the whats actually Im looking for
<becom33>
the strings can be looks like "somthingsomthing$_POST['name']somthingsomthing" still it should replace $_POST['name'] with fix($_POST['name'])
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<becom33>
oki
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<injekt>
you can strip it and make it a little more simple, but lets be honest, getting it this far has taken long enough
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<becom33>
injekt, alright thanks
<becom33>
lemme try this out
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<becom33>
injekt, its working fine :D thank you very much
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<dp>
ok. I've got all of my arrays compiled to a single multi-d array. is there a way to loop all possible combinations of pairs? IE, arr[0] and arr[1], and arr[0] and arr[2], etc, all the way up to arr[100] and arr[99]?
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<Debaser>
hi, is there a method which transform [1, 1, 3, 4, 1, 3, 3, 4] in [[1,1], [3], [4], [1], [3,3], [4]] (which group every consecurtive similare elements in the same sub-array) ?
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<lupine>
probably nothing built-in
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<lupine>
you could do it with a quick select though
<Debaser>
ok, I'm actually new to ruby and am looking for to most "rubyest" way to do it :)
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<charliesome>
lupine, Debaser: there is something built in
<lupine>
last = nil ; result = ary.select {|elem| r = ( last == elem ) ; last = elem ; r } would do what you want, I think, but I'd be interested to see the built-in
<lupine>
of course I do. "the boss doesn't see it as a priority"
<withnale>
is there an easy way to merge two YAML files? I thought I could just .merge the resulting loaded structures but that will only merge at the top level not lower levels.
<lupine>
well, how do you want to handle conflicts ?
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<charliesome>
lupine: he'll see it as a priority in a year or so when the cost of remaining on 1.8 is ridiculous
<lupine>
mm, probably
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<lupine>
but we're not there yet
<charliesome>
how stubborn is your boss being about it?
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<charliesome>
have you tried laying out the reasons why you should upgrade?
* lupine
wouldn't mind getting to use all the shinies in 1.9
<lupine>
now wheezy's out, we might start getting somewhere with it
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<kapowaz>
wanted: somebody with experience implementing Warden in a Ruby app (not via Devise).
<kapowaz>
I'm trying to get my head around how to handle authentication failures so that I can classify an authentication failure (e.g. wrong credentials vs user account is locked etc.)
<julianhurley>
it's pretty good, I'm about 60% through
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<MrZYX>
withnale: a deep merge implementation is very easy, probably not worth a gem :)
<MrZYX>
and you can exactly define the behaviour on conflicts if you do it on your own
<lupine>
eh, you can always vendor it in
<apeiros>
MrZYX: I have a generic deep_merge which takes a block to deal with conflicts
<apeiros>
just like merge
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<withnale>
aperios: got a gist?
<MrZYX>
apeiros: then submit it to stdlib or core :P
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<apeiros>
aperios has no gists
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<lectrick>
OK so I need something from Ruby. I want a method that I give a block. When I yield to that block, I want this method to tell me a FULL benchmark- how long the block took to run is too trivial. I want to know the # of objects generated, their classes and sizes (if available), and
<lectrick>
... the actual memory consumed by running that block. if possible. not sure if that is, in pure ruby.
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<lectrick>
I can GC.stop, count all the objects, take the difference and GC.start and output that I guess, but I wonder if there is a more clever solution
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<lectrick>
I still think there is too much opacity around the "cost of doing business" in Ruby. It is nice to not have to worry about memory use... until you do have to worry
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<lectrick>
apeiros: banisterfiend: any thoughts?
<hoelzro>
the cost of using a HLL =)
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* lupine
recalls a very cool gem that tracked this kind of thing in exquisite detail
<hoelzro>
it would be nice if you could plug into the allocator
<lectrick>
hoelzro: OK, fine, admittedly. But if you want to know that info, it should be easily accessible
<hoelzro>
lectrick: oh, I agree
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<lectrick>
hoelzro: Yes. It would. I think you can have both ease of use AND visibility into the inner workings, too.
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<lectrick>
I am seeing so many issues lately having to do with a bit of code exploding in memory use and nobody caught it because the tools just aren't there or easy to use
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<lectrick>
:: mumbles something about using exception handling as flow control being even worse than a code smell ::
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<hoelzro>
hehe
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<lupine>
but I honestly can't remember what it was
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<hoelzro>
wow
<hoelzro>
I'm surprised to see so much malloc in the Ruby source
<apeiros>
lectrick: busy @ work, sry
<julianhurley>
hoelzro: Would you recommend something else?
<lectrick>
apeiros: it's ok, i am too haha
<lupine>
memprof ?
<hoelzro>
julianhurley: well, that depends; are you new to programming?
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<hoelzro>
(also, I haven't looked at Beginning Ruby, so I have no opinion on it)
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<julianhurley>
No, I'm from a PHP + Javascript background...I'm actually getting on pretty well, it's just that damn ::
<lectrick>
I apologize for my rant. I actually <3 Ruby. This is just a class of bugs I've seen a lot of lately
<julianhurley>
which I sort of get now
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<julianhurley>
:P
<tobiasvl>
julianhurley: PHP has :: too? what do you mean
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<lupine>
lectrick, if memprof is the one I'm thinking of, I used it successfully to track down a number of this kind of issue
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<julianhurley>
I never used it
<lupine>
(massive string object proliferation in my case)
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<lectrick>
hoelzro: binding.pry is pretty fuckin sweet, but that's all banisterfiend's labor of love
<hoelzro>
indeed
<hoelzro>
that's the thing about open source - things only get done if they interest someone
<lectrick>
i hope that fucker commits to core. if not i will have to beat down some asians. because open source is no panacea- you can have the best code and if some arrogant greybeard doesn't like you, you will still have to put on your salesman/politician suit and lobby
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<lectrick>
code does not stand on its own evidence. actually the big lesson of life is that nothing does. If you just hand someone the truth, they will not take it at face value. You have to massage it in.
<hoelzro>
yeah, it's a shame
<MrZYX>
given that it's surprising that religion works at all :P
<lectrick>
"here, here is the truth. don't you see it?" "ah, no, well... yeah, but if I allow this into core it will make me look bad right now, so go work on some gems for a while or something"
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<wmoxam>
lectrick: FORK IT
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<wmoxam>
;)
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<hoelzro>
so make sure you work with a language that allows cool stuff to be done outside of core ;)
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<lectrick>
MrZYX: Religion got one thing right- Evangelizing is something that you have to do even outside religion.
<lectrick>
wmoxam: hahaha right?
<lectrick>
People's damn worldviews and egos are the ultimate problem
<wmoxam>
lectrick: that goes both ways
<wmoxam>
"my code is truth" is often a product of ego :p
<lectrick>
:: mumbles something that rhymes with meineheier manson ::
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<lectrick>
how am i not surprised that zed shaw came up with "code fisting" lol
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<MouseTheLuckyDog>
Is there a way to require a ruby file without extension in the local directory?
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<lectrick>
MouseTheLuckyDog: Some won't like you doing it, but require_relative "the_file" should work
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<lectrick>
MouseTheLuckyDog: Ruby path management is a pain. I usually write helper methods to not pollute my entire repo with "path information"
<MouseTheLuckyDog>
lectrick, tried it. Does work. tried it with strace, shows that ruby tries to load "file.rb" and "file.so" but not "file".
<lectrick>
MouseTheLuckyDog: Oh. You want a non-extensioned file. Why?
<banisterfiend>
MouseTheLuckyDog: use 'load'
<banisterfiend>
MouseTheLuckyDog: load "./hello"
<lectrick>
The problem with "load" is it will always load
<lectrick>
Even if it's already loaded
<lectrick>
"require" only requires once
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<lectrick>
MouseTheLuckyDog: You didn't have to use strace, you could have probably just read the docs for that, that's how I knew that lol
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<Raydiation>
is there a way to overwrite /etc/gemrc by providing a local file? im getting * WARNING: Found --user-install in /etc/gemrc, please remove it, as it will break rubygems in RVM.
<MouseTheLuckyDog>
lectrik wasn't hard to use strace and easier then finding it in the docs.
<ner0x>
If I have an array of keys and an array of values associated to those keys is there a way to merge them easily so they are 1:1?
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<lectrick>
Raydiation: hmmm. maybe a .gemrc in your ~ ?
<lectrick>
MouseTheLuckyDog: Use your favorite tool I guess :)
<nemesit|znc>
i've found Dir.glob('tasks/*.rake').each { |r| import r } to import external rake files but it only works if i substitute import with load…i know nothing about ruby is it ok to just use load or could it cause problems?
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<Raydiation>
lectrick: nope, does not work
<Raydiation>
still getting the warning
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<lectrick>
Raydiation: Not sure. Never dealt with that error locally. I assume you googled... Also make sure your PATH is correct
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<Raydiation>
lectrick: hm, ok ty
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<MrZYX>
or you register a catch all hook and do it yourself
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<Spooner>
Hanmac2, I didn't say it should be in core, but it does seem to be something that is sometimes useful (seen it asked for at least twice in #ruby).
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<lectrick>
shevy: considering how often this sort of thing is done, I doubt it's worthless effort :)
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<injekt>
that makes complete sense
<shevy>
the pickaxe lied to me
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<shevy>
it said '' is faster than ""
<lectrick>
injekt: you read the source code, i bet
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<shevy>
I will bookmark this
<injekt>
lectrick: no, I know that creating one string is faster than creating a string, concating to it, or creating a string and then creating another string
<shevy>
so that every new generation of ruby guys can see that the pickaxe lies
<cout>
lectrick: maybe
<cout>
lectrick: the profile doesn't give me a breakdown, unfortunately :(
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<injekt>
lectrick: try using one single string and concating to it n times, << will probably win
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<injekt>
unfortunately the benchmark is a poor comparison for the reasons to use << vs +
<lectrick>
cout: yeah, i was just bitching about that this morning here. an easy language-level way to see mem consumption of a block
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<catphish>
are there any widely used alternative yaml parsers?
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<MrZYX>
what's wrong with Psych?
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<catphish>
might look at RbYAML
<catphish>
MrZYX: i'm not sure, i'm having some network code hang when using psych
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<Eiam>
canton7: neat.. interesting bit of history.
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<lectrick>
I wrote this a month ago or so to help profile memory consumption. I just noticed that it doesn't stop/start the GC, oh well: https://gist.github.com/pmarreck/5245761 cc injekt dr_bob cout shevy wmoxam
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<lectrick>
I will be the first to admit that it is 1) probably ugly, and 2) spends a lot of logic not stepping on itself :)
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<lectrick>
But hey, it has inline test coverage. And by "test coverage" I mean "one big test method with a bunch of asserts" :)
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<julianhurley>
Getting on well with databases, but where exactly are they stored? In the sqlite gem? They're not in my project's directory?
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<julianhurley>
apologies for noobishness
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<banisterfiend>
julianhurley: it's stored in a file on disk
<julianhurley>
banisterfiend: And the location of this elusive file?
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<lectrick>
julianhurley: it depends on the database. sqlite db's are stored in <rails project root>/db/ I believe. MySQL are stored in /usr/local/var/mysql (if installed via Homebrew on OS X, at least)
<banisterfiend>
julianhurley: that's up to you and the framework you're using
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<banisterfiend>
julianhurley: but it should be a .sql file somewhere in your project folder
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<lectrick>
julianhurley: if you're using rails, I mean
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<julianhurley>
Yes, using rails. It's appeared in my root directory. I think Finder lagged :L
<julianhurley>
thanks a lot chaps
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<peta_>
How can I apply a range object to an array? e.g. r = (0..1), a = [1,2,3,4,5] -- something like a[r].each {|e| kungfoo }
<shevy>
peta_ a range has a START and an END
<shevy>
array[3..5]
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<Liquid-->
hello, anyone know how to have a ruby script enter a password when prompted? I have a script that logs into remote servers but each server will prompt for a password.
<T|ASK>
HI
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<banisterfiend>
peta_: just like shevy said: a[r].each
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<shevy>
array = [1,2,3,4,5] # => [1, 2, 3, 4, 5]
<shevy>
r = 3..5 # => 3..5
<shevy>
array[r] # => [4, 5]
<peta_>
yes yes
<shevy>
that's the cool part of ruby peta_
<peta_>
omg .. i was sure to have tried this syntax array[r].each ...
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<shevy>
enjoy and remember these for the days when you use the dark parts of ruby
<shevy>
when the keyword "meta" is used, you know you are on the dark side
<shevy>
also when "eval" is part of an API, you are very much in the dark
<peta_>
yes sir
<shevy>
the dark side of ruby is not as much fun as the dark side for Luke Skywalker you see
<shevy>
or his dad, I forgot who was good and who was evil
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<shevy>
his dad probably wrote python scripts
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<catphish>
Liquid--: if you don't mind console echo, use gets
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<catphish>
if you do mind, there are gems that can do it, but no standard ruby way afaik
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<Liquid-->
catphish: thank you! what would be an example code snippet using gets? you are saying that the password will be displayed on the console if I use gets? So the only way to hide it would be to use a custom gem?
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<catphish>
Liquid--: correct
<catphish>
Liquid--: i think you just do: password = gets
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<markalanevans>
but i don't understand the syntax for headers: {Accept: "text/html"}
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<markalanevans>
or params: {field1: "a field"},
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<Quadlex>
markalanevans: That's the "New" hash syntax
<MrZYX>
it's the 1.9 of writing {:field1 => "a field" }
<Quadlex>
When you have symbol keys, you can instead place the colon at the end of the symbol
<Quadlex>
Apparently it looks "more natural"
<Quadlex>
I think it's an abombination
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<markalanevans>
Wow. Totally not more natural.
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<MrZYX>
in 2.0 you also pass keyword arguments that way (if the method expects it, otherwise it'll be a hash)
<lectrick>
Unless you've used json...
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<shevy>
markalanevans you can use the old way
<markalanevans>
Well I want to be hip.. i guess.
<Quadlex>
NOOOOO
<shevy>
really
<wuest>
markalanevans: do what feels natural to you :p
<markalanevans>
So basically putting the : after the words.
<Quadlex>
You want to be comfortable and have people be able to read your code
<shevy>
only because you wanna be hip
<markalanevans>
means its part of a hash
<shevy>
:(
<danman>
hey is array.delete breaking ruby's method naming convention? array.delete actually deletes from array. Shouldn't there be a array.delete! method to change the content of the array, like compact!, gsub!, uniq!?
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<markalanevans>
no more typing the {}
<Quadlex>
I totally understand the desire to be hip:P
<shevy>
markalanevans I think I hate you
<markalanevans>
haha
<akhet>
you dont hate anyone shevy
<Quadlex>
markalanevans: You still need the hash braces
<shevy>
mark_locklear, no, the {} can be omitted sometimes, regardless of the syntax
<wuest>
Quadlex: not in all cases.
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<shevy>
def foo(input = nil)
<markalanevans>
Quadlex: yea there are no braces in the example
<shevy>
end
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<Quadlex>
wuest: Only when an argument though, right?
<shevy>
foo( { :key => 'value' } )
<MrZYX>
danman: the convention is, if there's a ! version of the method, the non ! version will not modify the receiver
<markalanevans>
so apparently i can leave off the braces.
<shevy>
foo( :key => 'value' )
<shevy>
foo( key: 'value' )
<wuest>
Quadlex: yeah.
<shevy>
markalanevans yes but that has nothing to do with the : syntax
<wuest>
And only for the terminal argument.
<markalanevans>
?
<MrZYX>
danman: you won't find a bang version if there's no non-bang version in core ruby
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<shevy>
markalanevans the rails fanbois wanted key: 'value'
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<workmad3>
shevy: you missed out 'foo({key: 'value'})' as an example ;)
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<Quadlex>
markalanevans: method calls which are written METHOD( ARG1, ARG2, { A3 => X, A4 => Y}, BLOCK }
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<Quadlex>
Or any variation thereov
<shevy>
Quadlex is a mathematician :D
<Quadlex>
Can drop the hash braces
<shevy>
can I bang a version?
<Quadlex>
And it will assume everything after the 2nd last argument (exccluding the block) is a hash
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<Quadlex>
shevy: uh no?
<danman>
MrZYX: I would have to say that's non-intuitive. What if I don't want to change the array?
<shevy>
I just liked the all caps there :D
<shevy>
GOTO START
<markalanevans>
but in their case they have method(arg1, arg2, key1: "value1", key2: "value2", arg3)
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<shevy>
well markalanevans, that depends
<markalanevans>
it just seems weird to leave off the {}
<shevy>
def method(*input)
<shevy>
^^^ all can be optional now
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<shevy>
you do not have to leave off the {}
<shevy>
if it confuses you, keep using it!
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<markalanevans>
right but you can, and thats just confusing
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<shevy>
you can do a lot of whacky stuff in ruby, that's true
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<shevy>
and 90% of the ruby code written by others I hate
<markalanevans>
what if i did : method(arg1, arg2, key1: "value1", key2: "value2", arg3, key3: "value3")
<shevy>
what is that
<shevy>
is that even valid syntax what you try to do here?
<markalanevans>
would key3 be apart of the hash?
<MrZYX>
danman: usually #reject
<shevy>
I have no idea what that is haha
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<shevy>
but intuitively, it looks invalid syntax
<shevy>
any project needing such a method call must be deleted
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<markalanevans>
i guess what i'm saying is how is that by leaving off the {} but still separating the values with commas ruby isn't interpreting those as separate params rather than making it a hash.
<shevy>
ok, so 3 hashes as input to that method?
<markalanevans>
no no
<markalanevans>
so going back to the original pastie
<shevy>
markalanevans, honestly, 99% of the code I see where {} is left off is either by accepting only one argument, or by having the last argument to the method be a hash
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<shevy>
def foo( :cat => 'tom' }
<shevy>
oops
<shevy>
that was a bad example
<workmad3>
markalanevans: that's calling a method with a url and a hash of options
<workmad3>
markalanevans: but some of the keys in that hash point to nested hashes, which always need the {} wrapping them
<shevy>
markalanevans I think he must have something like: def initialize(bla, *options)
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<workmad3>
shevy: he has 'def initialize(url, options = {})'
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<shevy>
hmm
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<shevy>
no * ?
<slash_nick>
active support has the #extract_options!
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<workmad3>
shevy: why would he need a variable length array arg?
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<workmad3>
shevy: it's a string and a hash being passed in
<MrZYX>
or def initialize(url, method: 'get', body: nil, etc
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<workmad3>
markalanevans: exactly the same thing, yes
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<shevy>
the second is better
<MrZYX>
because you're more used to it
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<shevy>
because it requires less brain processing time
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<Quadlex>
shevy: I just wanted to make it clear
<banisterfiend>
Quadlex: make what clear
<shevy>
Quadlex :D
<markalanevans>
so does that mean that the ruby interpreter is looking at each param being passed and assumes that if it is postfixed with a : then it should be part of the methods defined second param and is a hash
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<workmad3>
markalanevans: no
<Quadlex>
banisterfiend: an example I was giving
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<markalanevans>
and then the next param that doesn't end with : is the next param.
<shevy>
trying to understand the ruby parser is like trying to understand madness
<markalanevans>
right, but thats pretty much what it must be doing
<Quadlex>
markalanevans: OK, so lets ignore block for now
<Quadlex>
If a method has 4 arguments
<workmad3>
markalanevans: an implicit hash param has to be the last argument to a method
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<Quadlex>
And you supply 4 exactly OR more then 4
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<markalanevans>
params in a method separate by commas should be separate params, but in this case it must be looking at params with a given postfix ":" and and do something with it...
<Quadlex>
The parser will assume the last one is a hash
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<workmad3>
markalanevans: and what the parser does is essentially go 'does this syntax match an inline hash token?' if it does, then the rest of the arguments need to also be hashey
<Quadlex>
It can do this because the method you're calling has a signature with 4 arguments
<workmad3>
markalanevans: and they all get gathered together into a single hash and passed as that
<Quadlex>
This ONLY works for the final argument (That's not a block)
<markalanevans>
Ok one sec i'm going to look at the object signature. one sec
<markalanevans>
I really want to understand this because its been confusing me.
<workmad3>
markalanevans: 'foo bar: "baz"' and 'foo :bar => "baz"' are both identical too btw
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<Quadlex>
It's one of those things that is "easy" once you've been doing it a while
<ericwood>
rocketships are better than that silly json notation
<Quadlex>
But when you're new there are lots of weird things to remember
<Quadlex>
ericwood: EXACRTLY
<workmad3>
markalanevans: in the same way that 'foo = {bar: "baz"}' and 'foo = {:bar => "baz"}' are identical hash declarations
<Quadlex>
...spelling
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<ericwood>
=> => => pew pew pew
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<Quadlex>
Rocketships are exciting
<Quadlex>
Colons are shitty
<Quadlex>
Do you want your code to be exciting, or shitty?
<ericwood>
both.
<workmad3>
unless you're using named parameters in ruby 2, anyway :)
<ericwood>
I would like to have my cake and eat it
<Morrolan>
Do you want your code to be as explosive as a rocket?
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<Zelest>
Colons are shitty by design :D
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<workmad3>
I personally would prefer the ruby json-esque notation if it was actually json-esque
<markalanevans>
So basicaly ruby got rid of => in hash declarations
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<markalanevans>
to be simply key: "value
<Morrolan>
Only when the keys are symbols.
<markalanevans>
kinda like json
<Quadlex>
Morrolan: Yes. I want it to blast the user off on a magical space adventure
<workmad3>
markalanevans: ruby introduced a shorthand for symbol-keys
<Morrolan>
Quadlex: Remind me never to use your software. :o
<Quadlex>
That's another reason I hate it
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<ericwood>
=>
<Quadlex>
"YAY ANOTHER SPECIAL CASE"
<workmad3>
markalanevans: => is still valid, and needed if you want to use anything other than a symbol as a key
<ericwood>
just use it for everything because it's more explicit...
<ericwood>
maybe that's just me, though
<workmad3>
ericwood: it's not any more explicit
<ericwood>
bah!
<shevy>
markalanevans it did not get "rid" of it because the old way still works
<workmad3>
ericwood: {foo: "bar"} is explicitly a hash literal with a single k-v pair, key == :foo, value == "bar"
<markalanevans>
Most likely i will just use it. But i think i get it now. Just want to be able to understand what i'm reading as i dissect gems.
<shevy>
I use => all the time and never :
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<slash_nick>
"foo": => "bar" is valid?
* slash_nick
tries
<workmad3>
ericwood: it's less general, slightly less verbose, and is annoyingly close to json while still ensuring copy-pasting json into irb will spew errors all over your screen
<workmad3>
ericwood: but it's the same level of explicitness ;)
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<shevy>
slash_nick I hope not
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<slash_nick>
shevy: rest easy
<shevy>
slash_nick hehe
<ericwood>
things would be easier if y'all just agreed with me
<ericwood>
just sayin'
<slash_nick>
I completely assumed markalanevans: was a symbol
<workmad3>
ericwood: you took the words right out of my fingers ;)
<shevy>
ericwood only if you agree with matz
* ericwood
bows before Matz shrine
<shevy>
hehehe
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<banisterfiend>
what shall we talk baout
<ericwood>
ruby
<workmad3>
incidentally, if you write coffeescript solidly for about 3 months, you tend to end up using foo: "bar" in ruby :(
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<ericwood>
the same thing we talk about every night, banisterfiend
<ericwood>
RUBY
<workmad3>
ericwood: how to take over the world... with RUBY!!!
<ericwood>
been there, done that
<banisterfiend>
workmad3: i've been doing a fair bit of coffeescript recently via marionette.js
<ericwood>
it was boring
<banisterfiend>
workmad3: i like it, but it's a real pain when you try to move code around
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* ericwood
has been doing marionette as well, sans coffeescript
<workmad3>
ericwood: do it again, but this time use excessive metaprogramming ;)
<Quadlex>
How about we talk about... Why Rubyists don't tend to do integration testing of their web apps
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<banisterfiend>
ericwood: the nice thing about marionette/backbone is that the coffeescript class model matches up to the backbone one
<ericwood>
I do need to work on my meta skillz
<banisterfiend>
ericwood: so you can just use 'class Blah' rather than the Blah.Blah.extend() jazz u have to do in other MVC frameworks
<ericwood>
banisterfiend: my coworkers would not be happy if I suddenly switched langs :P
<ericwood>
but I like extend() !!!!
<workmad3>
banisterfiend: yeah, I can see that... I'm still trying to get vim to play nice with coffeescript indentation... until that happens, then ]p won't work for moving it :(
<Quadlex>
Canonical ruby: a method called do_the_things taking an optional :all argument
<banisterfiend>
ericwood: it would literally take your team about 3 days to switch to coffeescript
<Quadlex>
That then does whatever you, as the original author, think the next guy should WANT to do
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<banisterfiend>
ericwood: and if you're using rails you can just tap a .js.coffee on the end of the new files ,and let sprockets deal with it
<Quadlex>
I still want .rb.coffee
<ericwood>
yeah but my coworkers have to deal with the code :P
<ericwood>
and we're having enough trouble as it is reprogramming them all to use marionette as it is!
<workmad3>
ericwood: if they can do javascript, they can do coffeescript
<ericwood>
I'm sure
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<ericwood>
they're capable, we just don't have the time right now
<banisterfiend>
workmad3: multiple cursors help (in emacs)
<workmad3>
:)
<ericwood>
so leave me be!
<banisterfiend>
ericwood: which widget set are you using? kendo ui?
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<workmad3>
banisterfiend: it's more that when I ask vim to indent a coffeescript file, it decides that every line should be an extra level of indent compared to previously :(
<ericwood>
banisterfiend: we use a modified boostrap
<banisterfiend>
ericwood: the creator of marionette is on the kendo ui team so the kendo widgets work great with backbone/marionette
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<ericwood>
we have lotsa bootstrappy stuff, in addition to a lot of our own kit
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<workmad3>
banisterfiend: not sure how multiple cursors help with bad indent rules
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<banisterfiend>
workmad3: well when you mess up indentation (say when u're moving large chunks of code around between methods/classes) i find it useful to just tweak the indentation
<workmad3>
banisterfiend: that's what ]p does ;) 'paste and reindent' :)
<banisterfiend>
workmad3: how does it know how far to reindent?
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<banisterfiend>
it's so ambiguous
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<banisterfiend>
multiple cursors allows me to do that manually since editors often mess it up
<shevy>
ericwood what languages do you or your co-workers use?
<ericwood>
we're a rails shop
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<workmad3>
banisterfiend: well, if the indent rules worked properly in my vim setup, then it would take it from context
<ericwood>
so, all of the languages you'd expect from a rails shop
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<Quadlex>
What syntax do you guys like to use for multiline blocks of text you need to output to the console?
<banisterfiend>
Quadlex: do/end
<banisterfiend>
wait
<workmad3>
Quadlex: heredocs
<banisterfiend>
heredocs
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<banisterfiend>
workmad3: but i think the point is that there's almost never enough context to figure it out definitely, emacs doesnt try to figure it out either
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<banisterfiend>
you'd need some pretty sophisticated scripts to figure it out maybe
<banisterfiend>
and even then it would just be a guess in many cases, since there's many cases where it will always be ambiguous
<workmad3>
banisterfiend: possibly, I'm hopeful that my vim-coffeescript plugin will be modded by the authors to have better indent rules eventually :)
<workmad3>
banisterfiend: until then, it's just 'p' then visual-block select it and manually > or < it
<banisterfiend>
workmad3: which client side js MVC are you using?
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<workmad3>
banisterfiend: you asked this previously I believe ;) the project a lot of my CS is in isn't using a JS MV* framework
<workmad3>
banisterfiend: it's more of a hand-rolled visual hierachy roughly analogous to a document-presenter thing
<banisterfiend>
workmad3: yeah i figured i might have, ah, probably cos you didnt mention one it didnt stick
<workmad3>
banisterfiend: which we migrated too when we just couldn't get ember to stay stable (too many interactions that caused bad, uncontained cascades :( )
<workmad3>
s/too/to
<workmad3>
if we redid it, would possible consider backbone
<banisterfiend>
workmad3: you should check out marionette, im finding it really elegant
<workmad3>
*possibly
<banisterfiend>
yeah backbone+marionette
<banisterfiend>
marionette is the shiz
<rking>
banisterfiend: Did you post code re: marionette?
<banisterfiend>
rking: what?
<rking>
Do you have public code that uses it?
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<rking>
A gist or repo.
<banisterfiend>
rking: ah not yet really
<banisterfiend>
rking: but there's lots of it around
<banisterfiend>
one sec ill find you some
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<workmad3>
banisterfiend: would be a pretty major rebuild now though... we've got essentially 3 major js apps in the project now, totalling about 4k lines of cs
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<banisterfiend>
workmad3: seems crazy you guys would have so much cs and not have decided on a framework early on
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<banisterfiend>
but i guess u tried ember and it didnt work out, from the sounds of it
<workmad3>
banisterfiend: yeah, pretty much it
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<banisterfiend>
workmad3: backbonerails.com
<rking>
Ugh I'm such a CoffeeScript snob.
<banisterfiend>
workmad3: get your boss to buy it :)
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<rking>
After looking at some JS this week that's such a delight.
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<rking>
Hanmac: Why does the conveyor move differently than the tables?
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<workmad3>
banisterfiend: we'd also been working on 2 of the apps in parallel, one smaller one was the one we started with ember and didn't work out, the other one was mostly done by a guy who'd done a lot of UI work in other languages, and went with a style he knew would work and stay stable as he built on it
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<banisterfiend>
workmad3: cool
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<workmad3>
banisterfiend: so when ember was being a real PITA with event containment, it made a certain amount of sense to spend about 4 days rewriting it to a style we already knew was working with our stuff :)
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<Hanmac>
rking: "You are right, this is a violation of the laws of physics. I'll -notify the physics police"
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<workmad3>
rking: heh :) I wrote some javascript this week
<rking>
banisterfiend: What is the relationship of Marionnette vs. Backbone?
<workmad3>
rking: directly into the text editor in a html macro in confluence :)
<rking>
Hanmac: I didn't say that. It's possible that the top of the table is at a different depth with respect to the viewer, and the tables hover above the lower part of the band.
<banisterfiend>
rking: same as between padrino and sinatra, except marionette doesn't suck.
<Quadlex>
Ouch
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<rking>
workmad3: Are you OK?
<banisterfiend>
not saying that padrino sucks, i've never used it, but that's what i've been told :)
<Quadlex>
I hate when people pick on stylistic things in os code
<workmad3>
s/this week/last week
<workmad3>
rking: it was kinda fun... sort of like I imagine driving a real wreck of a car is
<rking>
Quadlex: Who did that?
<Hanmac>
rking: this was a quote, now its your turn to google that ,P
<workmad3>
not that I know what any sort of driving was
<workmad3>
*any sort of driving is like
<rking>
Hanmac: Which quote?
<workmad3>
bleh, brain isn't working right
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<banisterfiend>
rking: IMO marionette could/should be huge. It stands up to ember.js/angular in terms of reduction of boiler plate, but of course it's much easier from the already large number of backbone users to migrate to
<banisterfiend>
for the*
<Hanmac>
rking: this one in the ""
<banisterfiend>
Hanmac: are you james baxter?
<banisterfiend>
Hanmac: do you know who james baxter is
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<Hanmac>
banisterfiend: the bubble is the father ;P
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<banisterfiend>
Hanmac: most likely :) something terrible happens to the baby though
<banisterfiend>
bbl
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<Quadlex>
rking: Actually, that reminds me, my VERY FIRST FOSS commit, I was told off for not following their desired style
<Quadlex>
They didn;t have a styleguide
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<shevy>
hehe
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<shevy>
I guess most of the styleguides are what most people will do after some years
<shevy>
like after ten years of coding, people tend to indent in a certain way
<shevy>
two spaces if they are smart per level of indent
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<Spooner>
4 spaces is fine too. 1 tab is sorta horrid (but I have to do that for my main client, which is a pain) ;)
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<ChristianS>
Spooner: set your visual tabwidth to 2 and you'll be fine (more or less)
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<Spooner>
ChristianS, I've set it to 4, which is Python normal (it is a Python client, because I can find those, unlike Ruby ones :D). The problem comes with terrible pasties or online repository browsing...or accidentally mixing spaces in :(
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<Spooner>
Main problem, however, is having to change the setting in my editor for other clients who aren't muppets :D
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<Spooner>
Gives me something to moan about though!
<ChristianS>
lol, i understand
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<rking>
Quadlex: URL?
<rep0st>
so i am assigning 116 characters to a variable called bob using %{}. seems like when i pass it to system(bob) it inserts a new line character which breaks what i'm trying to do. Is that as designed?
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<banisterfiend>
rking: did u get much feedback/reaction to your lightning talk
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<Spooner>
rep0st, It is if you put newlines in the %{}
<rking>
banisterfiend: A bit, yeah.
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<rking>
The A/V problems ate most of the feedback.
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<banisterfiend>
wat did they say
<banisterfiend>
lame
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<Spooner>
rep0st, If you have to write it on multiple lines, use %{...}.gsub("\n", '') to get rid of the newlines.
<banisterfiend>
rking: i heard that arko guy was still using exception_explorer, that was cute :D
<rep0st>
Spooner: well that's the thing i'm not. Hm. I was thinking of doing that. I was hoping for a nicer way of doing it. But if it has to be done it has to be done.
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<rep0st>
Spooner: ty
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<Spooner>
rep0st, It won't have newlines in it unless you put them there by putting the } on a different line than the %{
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<banisterfiend>
rking: what was the non A/V feedback about?
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<rep0st>
Spooner: Ah makes sense. root cause was that i wasn't chomping input from gets. makes sense. I had half an idea that either the string or the system call was inserting a new line some where. Thank you for pointing me.
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<Ontolog_>
i always find myself wanting something like this: a - b < 0 ? 0 : a - b but i don't want to type out a - b twice
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<workmad3>
Ontolog: [0, a - b].max
<Ontolog>
workmad3: oh yeah that's cool, that works in that specific instance
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<workmad3>
Ontolog: you could also try (tmp = a - b) < 0 ? 0 : tmp
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<Ontolog>
ah
<Ontolog>
yeah that might work
<workmad3>
Ontolog: wouldn't recommend either apart from in throwaway code though... neither is particularly intention revealing (and neither is the first case)
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<Ontolog>
jeez
<Ontolog>
in that case might was well write java :p
<jeebster>
musl: ah so I can't do so in the form of a 2d hash, I must merge afterwards
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<shevy>
"Work on the ASCII standard began on October 6, 1960"
<shevy>
god, none of you has been even born then
<shevy>
"The IANA prefers the name US-ASCII[10] to avoid ambiguity."
<shevy>
ack
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<shevy>
"ASCII was the most commonly used character encoding on the World Wide Web until December 2007, when it was surpassed by UTF-8"
<shevy>
:(
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<musl>
jeebster: What are you trying to do? #<< isn't defined for Hash.
<cupakromer>
musl arr.merge(hash.to_a)?
<jeebster>
cupakromer: yes I belive I must merge
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<musl>
Since when can you merge arrays?
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<bentech>
greenarrow: Help me?
<cupakromer>
musl meant arr.concat
<greenarrow>
bentech: hello
<bentech>
greenarrow: hi
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<greenarrow>
bentech: welcome to #ruby
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<bentech>
greenarrow: Thanks for the welcome
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<greenarrow>
bentech: no problem
<bentech>
greenarrow: Will you help with my problem?
<musl>
cupakromer: What's in the receiving array? more key/value pairs?
<greenarrow>
bentech: yes
<bentech>
greenarrow: Great thanks
<cupakromer>
no idea, i'm guessing that's what jeebster wanted
<greenarrow>
bentech: what's the problem
<musl>
ah.
<jeebster>
cupakromer: you got it
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<jeebster>
thanks fellas
<bentech>
greenarrow: Which one is greater than, i always forget, > or <
<greenarrow>
greenarrow: <
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<bentech>
greenarrow: Thanks
<greenarrow>
bentech: anytime
<jeebster>
lol
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<Hanmac>
bentech: we are in the 21th century, we use spaceships <=> ;P
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<bentech>
Hanmac: Thanks Hanmac, i don't know what that is though
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<shevy>
bentech spaceship operator is "<=>"
<shevy>
bentech I think in ruby it is used for sorting
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<bentech>
wbut what does that do?
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<Hanmac>
shevy and what is that?`<~ or the -> ?
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<shevy>
-> is the useless and evil lambda operator
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<shevy>
I dunno what abomination <~ should be
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<shevy>
I hope it is invalid syntax
<Hanmac>
bentech: look at the Comperable module, <,>,==,<=,=> redirects to <=>
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<bentech>
oh it's just compare
<Hanmac>
shevy they are for ruby gem version checking
<shevy>
bentech < is smaller than, > is greater than, == is equal to, <= is less than or equal, => is greater than or equal
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<shevy>
bentech yes, programming is all about comparing
<shevy>
if x > y
<RiftyMcF3arless>
hello all. i'm working on a project for a client that we're using Watir in to drive an instance of Firefox. we want to be able to retain our login state between browser closes using a website's cookies. when i load the profile we're using in Firefox itself, it works fine, but when i load the profile using Watir, it loads everything but the cookies. any ideas why?
<Hanmac>
shevy: i was wondering if -> or ~> also have such names like "spaceship operator"
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<shevy>
-> is the lambda operator, isn't it?
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<shevy>
ruby is so cool that you can pick only 10% of the language and still be happy
<tylersmith>
stabby lambda
<shevy>
ah yes, the stabby something
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<forrest>
so what is ~> for?
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<workmad3>
forrest: spermy version operator!
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<forrest>
heh, i was going to call it a sperm something
<workmad3>
forrest: also known as the 'twiddle version operator'
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<shevy>
man
<workmad3>
forrest: ~> X.Y.Z is equivalent to >= X.Y.Z and < X.(Y + 1)
<shevy>
how can you think of ~> as spermy
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<shevy>
now if it were ~<>
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<workmad3>
shevy: pretty sure that's what the rubygems manual calls it (or did at one point)
<shevy>
or
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<shevy>
~~~<>
<shevy>
lol workmad3
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<shevy>
now that would actually be hilarious
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<shevy>
imagine a japanese hacker trying to translate it into english
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<Hanmac>
shevy this is valid ruby ;P --++--++--++--++--++--++--0
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<shevy>
grrrrr
<slash_nick>
pretty too
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<Hanmac>
shevy on 64bit systems: 0.0.object_id == 0.0.object_id but (-0.0).object_id != (-0.0).object_id
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<Spooner>
Hanmac, (0.0).object_id != (0.0).object_id for me as well (Ubuntu64, Ruby 1.9.3)
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<Spooner>
Oh yeah, in 2.0. Oops...
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<Spooner>
Because only some floats are immediate values.
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<Hanmac>
its funny that 0.0 has fixed id but -0.0 has not ;P
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<AndChat|>
Yeah
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<AndChat|>
They are, Spooner
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<Spooner>
Interesting that -1.0 has fixed value. It is because +0 and -0 are different for floats, but I guess the special case of -0 isn't one of the immediates. Sort of makes sense (so you don't need a gap to fit -0 in).
<Spooner>
*gap in the ids
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<Spooner>
Float::INFINITY has constant ID though and that is another special case. Strange...
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<kke>
let's imagine we have loads of instance methods and loads of instances, would we save memory if instead of instance methods, those were class methods that take instance as argument? (the assumption being that instances do not hold on to the class methods, and no i do not know anything about mri internals)
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<banisterfiend>
kke: no
<banisterfiend>
kke: not much memory anyway
<banisterfiend>
the instance methods are not copied fromt hthe class to the instances
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<kke>
ok, nice to know. just trying to appreciate the legacy junk i have (has a lot of class methods that take an instance of itself as argument)
<kke>
so it's just because someone didn't know what he was doing
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<Spooner>
kke, Someone who thought they were writing Python ;)
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<Spooner>
kke, Could be any instance being passed in, however. It wouldn't have to be an instance of that class (is the only sensible explanation I can think of).
<kke>
so an instance is actually just a collection of instance variables and some stuff like extended modules?
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<kke>
hey i didn't think of that
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<kke>
that would actually kind of fit my purposes
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<Spooner>
But in that case, it would make more sense to use a module method, but *shrugs* Legacy code is...always dumb in retrospect.
<apeiros>
mine is purrfect
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<Spooner>
My legacy code is pretty dumb. My current code is a bit dumb and other people's legacy is diabolical ;)
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<kke>
sometimes i'm amazed by my legacy code, having doubts that i must have copypasted it from somewhere
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<kke>
nowadays i think i've lost some readability as i'm overoptimizing and using too much ? : and || and tap and whatnot
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<banisterfiend>
kke: using "?:" is not about optimization
<kke>
and includes and all sorts of trickery
<Quadlex>
<3 ?:
<banisterfiend>
all that does is shrinks your code, but who cares if your code has a small line count
<banisterfiend>
small line count means nothing
<kke>
yeah, that's what i mean by having lost readability
<injekt>
ternatory operators are nice for extremely simple cases
<banisterfiend>
injekt: which js mvc framework (if any) are you using for your rockin' real estate site?
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<kke>
nested ternaryrs for complex cases are not nice? :(
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<banisterfiend>
kke: hehe
<injekt>
banisterfiend: we aren't using one, all our js is custom, we just tab into other libs, mostly jquery extensions I believe
<injekt>
banisterfiend: we use jquery-mobile
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<banisterfiend>
injekt: ah ok
<injekt>
banisterfiend: our app has about 24k lines of js
<injekt>
to about ~15k of Ruby
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<banisterfiend>
injekt: and it doesn't feel like a clusterfuck?
<injekt>
banisterfiend: I don't touch the JS myself the other dev does. But it's pretty organized
<injekt>
he's a sucker for organized code
<injekt>
banisterfiend: it's distributed over a LOT of files
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<kke>
congrats, my colleague is a sucker for copy & paste
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<injekt>
hundreds of js files, and precompiled in production
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<injekt>
kke: only 2 developers on a high scale startup like ours, we aint got no time for copy pasta :D
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<banister_>
injekt: ah ok
<injekt>
there's also 700 ruby files in this app
<injekt>
not including the ~400 migration files
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<injekt>
the controllers are the only clusterfuck really
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<tylersmith>
idk why controllers seem to always be the worst
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<injekt>
tylersmith: because they suck to dry up :(
<kke>
chubby controllers, obese models. that's where we're at.
<injekt>
our models are pretty small, we have like ~50 of them
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<injekt>
and we have 143 gem dependencies
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<injekt>
some of those are custom in house libraries
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<banister_>
injekt: you should get into the js MV* buzz, it's just as rich, if not richer than rails stuff
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<banister_>
in my very limited experience*
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<injekt>
banister_: meh, it's hard to migrate from jquery-mobile, and I'd have to convince my JS guy
<injekt>
we took a chance at going down this route, I've still no idea if it paid off or not
<banister_>
probably means you'll have a harder time getting new front end programmers grokking the codebase
<banister_>
if you scale up
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* stenno
is confused by the ruby apt packages
<injekt>
with plain old js? na, sticking to a specific mvc js library would also compress the niche
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<injekt>
stenno: dont install ruby via apt
<tylersmith>
i would hope most developers wouldn't need it to be in a framework to understand
<banister_>
but with each mvc library there is a pseicifc way of doing things that they can read up on
<tylersmith>
not that hope ever got anybody anywhere
<stenno>
i installed ruby-1.9.1, now i have an executable ruby1.9.1... but -v gives ruby1.9.3p0
<banister_>
whereas with a custom codebase they'd have to just persistently question the one guy who designed it
<stenno>
yeah figures :|
<banister_>
specific*
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<injekt>
banister_: sure, but we really only use jquery and basic js, everything we use is documented very well, I dont think the curve would be harder than when using a js lib, unless of course the new developer was awesome with said lib
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<banister_>
fair enough
<injekt>
stenno: yeah apt installs ruby 1.9.x into 1.9.1 paths
<banister_>
so u didnt recrate your own mv* thing?
<injekt>
stenno: again, dont use apt to install ruby
<stenno>
injekt: too late ;_;
<injekt>
banister_: no no not at all, it's all basic js
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<injekt>
banister_: which may come back to bite us, I'm really not sure
<stenno>
but i know for next time i guess :)
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<injekt>
banister_: I'm certainly not sold on either way, we may end up going down the mvc route. Feels weird to me, though
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<banister_>
injekt: it is really weird actually, i think it's a transitional phase, cos you have two huge MVC apps on both the client and server
<banister_>
feels wrong
<injekt>
banister_: yeah that's my view on it too
<banister_>
maybe something like meteor is the way to go, but i know little about that
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<injekt>
banister_: I like the idea of meteor, but it's way too infant to adopt imp
<injekt>
imo*
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<injekt>
banister_: all of our api is built in Go though, so are a few of our inside libraries, so some of the website is moving that way, too
<banister_>
injekt: how does your go talk to your ruby?
<injekt>
but there's only one ruby dev (me) and one go dev (me) so it's a bit of a pain
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<injekt>
banister_: it doesn't yet, the api is entirely a go app and separate from Ruby, and we have 2 internal libraries built in go that are web processes so Ruby doesn't need to talk to them
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<injekt>
I think more stuff will move to go
<banister_>
why did you choose go?
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<Hanmac>
because ruby has not goto ;P
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<injekt>
we have a csv importer and the import files usually about around 15k rows so go is super fast and nice on memory
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<banister_>
cool
<injekt>
banister_: because writing it in C would take too long, writing it in Java is too tedious and I like Go, it was previously written in scala
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<banister_>
yeah
<banister_>
makes sense
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<injekt>
scala is nice but the syntax annoyed me too much, I already knew go so it sort of made sense
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<banister_>
injekt: do you have any go code on github?
<injekt>
wrote it in ruby first, then wrote it in go with about 400% more code and 200% faster
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<graft>
anyone good with Readline? I'm trying to make a thing to complete filenames, but i wanted to have it append a / for a directory and a " " for a file after it completes...
<banister_>
graft: look into Bond
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<banister_>
injekt: go does look pretty nice
<graft>
but i'm 90% happy with readline... dangit
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<banister_>
graft: bond is just a completion plugin for Readline
<injekt>
banister_: it's ok, there's things I dont like but there's no language that doesn't happen with
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<banister_>
graft: we use it in recent pry versions
<graft>
oic
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<banister_>
injekt: cool, are you following this whole FRP buzz?
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<injekt>
banister_: no what's that?
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<banister_>
everyone seems to be creaming themselves over it, i've been looking at bit into bacon.js, and i see there's another lib for objective-c that's getting press
<banister_>
injekt: functional reactive programming (that's about the extent of my knowledge, the name :)
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<banister_>
injekt: could just be fluff that'll die down of course, or it could be the start of something..
<injekt>
banister_: ah yeah heard of it but I try and avoid stuff like that until I see it take hold a little more or I can see a benefit to myself quickly
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<injekt>
haven't had much time for buzz lately, too much writing code
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<injekt>
hoping things slow down soon, less time for open source
<injekt>
I've only managed to maintain mechanize much lately
<injekt>
and fix slop issues (very few)
<Absdia>
Hi, I was wondering if someone could tell me where I went wrong with my gems install or discover whats missing. Exception `LoadError' at /usr/lib/ruby/site_ruby/1.8/rubygems.rb for example. How do I track that?
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<injekt>
Absdia: paste the entire exception backtrace to a pastie
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<Hanmac>
banister_: i use chain "Name" do; def meth;super; doxyz;end;end ... that uses anonymous modules with prepend, do you want to see my .ancestors list?
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<banister_>
Hanmac: watch james baxter, now.
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<Hanmac>
banister_: i will to it tomorrow, currently my internet is slow
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<banister_>
Hanmac: you can't even stream a simple cartoon? :) just leave it to buffer for a few hours..
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<Hanmac>
banister_: i am online over my handy ...
<banister_>
hwat..?
<banister_>
phone you mean?
<injekt>
Absdia: did you install daemons?
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<Hanmac>
banister_: yeah my mobilephone
<Absdia>
Nope, guessing I'm missing that. =) Where do I get that? or is it available as a yum package? sorry this is the first time i've come near ruby
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<jokke>
hey, i think i asked this before but didn't find a solution to my problem: i use a ruby-based wm called subtle. It has so called sublets as in plugins. One of these is battery. I'm currently extending it to read in a file of "BatteryRules" that are triggered if they should_trigger?, alright? Now. This file where the rules are defined should look like a config, so i made the constructor yield the object itself
<jokke>
so i can do BatteryRule.new(:critical) do |critical| and then set instance variables on critical and what not. The problem is, this file doesn't require the class, and i don't want it to. So if i require the file in the sublet (plugin) i get an error because BatteryRule is not known.
<jokke>
oh god, that was long..
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<jokke>
anyhow... i need to load the file and evaluate it only after it's been loaded... because the BatteryRule class definition is at the top of my sublet file
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<jokke>
Or in other words, just pasting the code from the rules file underneath the class definition works fine. i need that kind of behavior for require.
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<jokke>
I already thought of evaluating each line of the file with eval()
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<jokke>
but that sounds pretty ugly
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<jokke>
which i would first join with ;
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<jokke>
jeez
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<injekt>
jokke: this sounds very specific to subtle itself, did you try asking in their channel?
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<jokke>
yeah but it's a quiet channel :)
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<Quadlex>
Hmm
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<Quadlex>
I want to do some magic around an RSpec test
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<injekt>
jokke: the problem is, in terms of plain ruby, I dont understand your question, and I dont touch subtle
<jokke>
:)
<Quadlex>
What's better, custom Runner or Rake shenanigans?
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<apeiros>
custom runner which you can `load 'yourrunner'` in rake
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<musl>
I'd also dig a wm like xmonad or i3 with a decent ruby interface. I'd suspect it'd still be best to write the majority of it in C though.
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<andrew12>
I used xmonad for a while but i3 looked a bit simpler
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<andrew12>
and I was having some issues where my computer would freeze up (I don't think it was the wm, I think it's my video drivers), and when I rebooted it, xmobar would be covered up by any windows I open
<andrew12>
plus haskell has pretty arcane syntax
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<jokke>
andrew12: i can highly recommend subtle
<andrew12>
that doesn't answer my question :P
<jokke>
its super flexible and easy to configure, yet powerful to expand
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<jokke>
its a grid based wm
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<andrew12>
so "tiling"
<andrew12>
:p
<jokke>
not really because windows can overlap
<andrew12>
hmm
<jokke>
and you can _not_ use space on the screen if you wish to do so
<jokke>
i used i3 too for a long time and didn't dislike it. Still i prefer subtle, mostly because of sublets and parts of it being written in ruby.
<jokke>
andrew12: it can be a bit confusing coming from i3 at first that windows by default open filling the whole screen. You have to tell them where to go by config or with hotkeys.
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<andrew12>
i3 does that by default too
<musl>
jokke: How is subtle with multiple monitors?
<jokke>
musl: i heard it's awesome, but i only have one :(
<andrew12>
I liked how in xmonad I could just mod+number on any of my monitors and that workspace would be on that monitor, where in i3 it will move the mouse to the monitor that has that workspace
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<jokke>
andrew12: yes but if you then open up another window it tiles the screen to fit them both in. subtle would just open the next one ontop of the other
<andrew12>
ah
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<andrew12>
I think I'll stick with i3 for now, mostly because i'm a minimalist
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<jokke>
subtle is just as minimalistic. Only cooler ;)