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<leitz>
Would someone mind looking at their irb files (mine is /usr/local/lib/ruby/gems/2.6.0/gems/irb-1.2.1) and seeing if there's a "readline" file? Somehow a gem update seems to have killed irb
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<leitz>
Okay, stole one.
<ratah>
leitz: /usr/local/lib/ruby/gems/2.6/gems/irb-1.0.0/exe/irb is the only one I got
<leitz>
I'm using ruby 2.2.6p124, and there was no readline.rb in /usr/local/lib/ruby/2.6.0. I move in the one from 2.7.0 and it seems to work.
<leitz>
ratah, thanks!
<leitz>
I'm still trying to figure out what happened. I'm using a ruby that I compiled, but usually things don't die after they've worked for a while. :)
<ratah>
Cool :)
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<Cork>
what would be the best way to write something like a bruteforce unicode string builder in ruby (looping through all possible unicode characters)
<Cork>
i have a string escaper i need to verify it escapes all that is needed
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<leitz>
Studying "Head First Object-Oriented Analysis and Design", getting lots of good ideas on how to improve my code.
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<adam12>
leitz: The POODR book is pretty good too.
<adam12>
leitz: Also, on ruby 2.2, you'd be looking for readline.so not readline.rb. Before Ruby 2.7, readline was a C extension. Ruby 2.7 ships with a pure ruby Readline implementation.
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<leitz>
adam12, I've read POODR a couple times, good stuff! Reading HFOOAD gives me a lot of the same, from a different perspective. Sometimes it takes a while for things to sink in.
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<leitz>
adam12, in the cut of 2.7.0 I have, /usr/local/lib/ruby/2.7.0/readline.rb just requires readline.so.
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<adam12>
leitz: Interesting. I wonder if that's a configuration option. The Ruby version is called reline.
<leitz>
The only readline.so I can see, except for the Python lib, is /usr/local/src/ruby/.ext/x86_64-linux/readline.so
<adam12>
leitz: It's possible that readline.rb requiring readline.so is just a fix for people doing 'require "readline.rb"'.
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<leitz>
Ah, and there's the reline.rb. I'm still trying to figure out what killed my irb. Copying readline.rb from 2.7.0 to 2.6.0 seemed to fix it, but not sure what broke it.
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<havenwood>
Anyone have thoughts on how to do nice optimistic concurrency with a Ruby API? A version field? What format?
<havenwood>
And somewhat related, how long to you expect an idempotency key to be persisted?
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<leitz>
havenwood, I haven't gotten to concurrency yet. On idempotency, as long as the program runs. Granted, I'm more used to code that does a run and then ends, like Ansible.
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<siery>
Hey, I'd notice that when you declare the Gosu class (like Gosu = Class.new) and then include the gosu library somewhere else the previous empty declaration will 'hang' in the memory to be accessed
<siery>
Can you somehow overwrite that class with correct Gosu class but later?
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<rubydoc>
stderr: -e:75:in `rpn_print': undefined local variable or method `leds' for main:Object (NameError)... check link for more (https://carc.in/#/r/8jca)
<phaul>
method defs are lexical scope boundary to local variables
<AndroidKitKat>
so is the simple solution to just pass the leds in?
<AndroidKitKat>
i know globals are sorta a non standard thing in ruby iirc, so i don't want to use them if there's a better solution
<phaul>
define_method(:rpn_print) { |char| .. would have worked, or make leds instance var, or just pass it in
<AndroidKitKat>
thanks
<phaul>
or you can point to the led has with a constant
<phaul>
probablly in this case that's the best
<phaul>
you would also freeze the hash for good measure
<AndroidKitKat>
ah good idea
<AndroidKitKat>
thanks for your advice
<phaul>
yw
<adam12>
havenwood: Version field for optimistic concurrency is how Docker Swarm does it IIRC. It works reasonably well. Its a plain Integer.
<havenwood>
adam12: That sounds along the lines of what we're currently doing. Incrementing monotonically.
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<al2o3-cr>
AndroidKitKat: keep in mind the way you've wrote it will give you symbols as keys and not strings.
<AndroidKitKat>
yeah i was running into that
<adam12>
havenwood: I'd presume a nonce to live forever... at least scoped to the parent of whatever it's being acted on. I don't have much more of an opinion on that tho, because I really just want to prevent rapid-fire transactions in a row, not me being an idiot and mass-recharging everyone from 2012. That would be on me.
<havenwood>
adam12: Yeah, forever seems reasonable to me too, buuut
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<adam12>
havenwood: Maybe we need a new name for nonce that is temporary. sonce? (sometimes once)
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<splud_wurk>
I have a couple of arrays with data which came from cmdline as two sequences which have ordered relationship with one another. Suffice it to say, I have them in respective arrays sn=['1', '2', '3'] and id=['A', 'B', 'C']
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<splud_wurk>
I want to get them (and some other data) into an array of hashes so that I can use sensible hash references instead of hard coded array indexes for getting to the individual elements in a row.
<splud_wurk>
I can iterate with $device.each_index |i| , but then have to maniupulate data with $device[i][1] to get to the id for instance.
<havenwood>
splud_wurk: What should the result be.
<havenwood>
splud_wurk: It's easier to understand data rather than parsing this logic. Unix rule!
<splud_wurk>
No, is array of sn, id, other data. same SN is associated with other array columns as well.
<havenwood>
splud_wurk: Could you do an example showing inputs and desired output?
<havenwood>
splud_wurk: For example, with [42, 24].cycle, ['1', '2', '3'], and ['A', 'B', 'C'], I want: {"1"=>["A", 42], "2"=>["B", 24], "3"=>["C", 42]}
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<adam12>
lmat: You probably want @object.update almost all the time; if you look at the AR docs, you'll see that update_attributes() does some other stuff that is unexpected (I'm presuming you meant update_attributes)
<splud_wurk>
like the output of the sn.zip above, but where [0] [1] [2] indexes are referenced by some associated/arbitrary text. "sn" 'id"
<adam12>
lmat: Strong parameters is meant to avoid scenarios where someone changes the POST to set `admin=1` or something. If you just accepted params as is, then they might have their Account set to an admin. Strong parameters just says, in _this_ structure, give me a hash, then take that hash and use it for updating the record.
<phaul>
siery: When you first declare your Gosu class the class object will be allocated. Any subsequent Gosu class definition will add onto that existing class, as casses are open, giving us monkey patching. Does this help?
<splud_wurk>
I want the subarray indexed referred to by name So basically taking some number of equal-length arrays and making hashes from then: :sn => perhaps "1" => |
<lmat>
adam12: So is it recommended never to use params, but always strong params?
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<splud_wurk>
lemme try a different tact: if I have a 2-dimentional array, how can I assign keys ?
<adam12>
lmat: There's alternatives built outside of Rails (dry-validation or dry-schema for one) but yes, strong parameters or just manually filtering out params is your best bet in Rails last time I looked.
<adam12>
splud_wurk: reduce into a hash (reduce, each_with_object, etc)
<phaul>
we are asking for very simple description of the probem. Data In -> Data Out. You give Data In and Data Out, we figure out the task. We are having trouble understanding your explanation.
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<havenwood>
^
<lmat>
adam12: I'm replacing things like user = User.find(params[:id]) to user = User.find(user_params[:id])
<adam12>
lmat: find is less of a risk. You're safe leaving it the way it is, if it's a naked find like that.
<splud_wurk>
phaul: - I really don't know what the hash elements would be like - I just want to be able to refer to whatever['123'][0] as whatever['123'][sn]
<lmat>
adam12: Okay, thanks!
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<splud_wurk>
lemme try the reduce.
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<havenwood>
splud_wurk: whatever.dig('123', sn)
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<al2o3-cr>
splud_wurk: so, you want an array of hashes?
<havenwood>
splud_wurk: If you could contrive a single example of what the data looks like, you'll probably get a quick answer.
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<splud_wurk>
back in a few, trying some tests
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<e3d3>
My ruby is installed in /usr/local/bin, but that dir has root-permisions so I need sudo to install gems. Is this the normal ?
<e3d3>
also, can I install multiple ruby-version ?
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<ratah>
e3d3: Doesn't sound normal at all. There are version managers that let you install multiple rubies, but imho they're just add extra complexity.
<ratah>
e3d3: Here on OpenBSD (aka. the world's simplest and most secure Unix-like OS), I just did `doas su && pkg_add ruby` and all my gems got installed into my user ~/.gem nice and easy.
<ratah>
no more rvm, chruby or whatever
<e3d3>
ratah: I saw also on ruby-lang.org that /usr/local is default for building from source
<e3d3>
doas ? must be an OpenBSD thing
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<ratah>
Yep :) Like a more secure version of sudo
<splud_wurk>
okay, seems like I just need to build each hash from the index for each array element.
<e3d3>
I tried multiple times to try BSD-os's but, if I remember well, they have nasty partition requirements
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<ratah>
they got a more secure version of pretty much everything from firewalls to web/mailservers to ssl implementations.
<splud_wurk>
e3d3: 'rvm' (ruby version manager). puts different rubies in your home directory, and you can switch between them. You have to maintain ALL of your gems on a version-by-version basis though.
<ratah>
hmm
<splud_wurk>
if you're using 2.10 and install a gem, when you 'rvm use 2.2.0' that gem won't be there until you install it for that version.
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<ratah>
e3d3: freebsd's installation is super nasty. tons of flashing ascii art etc... openbsd's is the simplest most elegant text-only installation i've ever seen. iirc partitioning was like a breeze
<splud_wurk>
rvm puts the path to the selected ruby at the front of your path.
<e3d3>
ratah: If I remember well, it required a primary partition.
<ratah>
e3d3: anyway yeah, instead of making life harder with rvm i just install the prebuilt openbsd package, security audited and ready to go. maintained by none other than jeremy evans. is he idling here right now?
<al2o3-cr>
splud_wurk: did you want something like this?
<al2o3-cr>
&>> sn = %w(1 2 3); id = %w(A B C); st = [0,2,1]; ver = %w(0.0.1 0.0.2 0.0.3); sn.zip(id, st, ver).map { |x| %i(sn id status version).zip(x).to_h }
<rubydoc>
# => [{:sn=>"1", :id=>"A", :status=>0, :version=>"0.0.1"}, {:sn=>"2", :id=>"B", :status=>2,... check link for more (https://carc.in/#/r/8jcr)
<ratah>
e3d3: i think you're right
<al2o3-cr>
because i'm dying to know :P
<e3d3>
ratah: I see that my distro (debian-derivate) suplies 'rbenv', simple per-user Ruby version manager. Thanks for the tip
<splud_wurk>
al2o3-cr: yea, that looks like what I was wanting. Thanks.
<splud_wurk>
.map duhr.
<ratah>
nice!
<e3d3>
ratah: I must say that the enthusiasm about OpenBSD that I almost hear from every user makes me curious. I'll look into it again :)
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<ratah>
:D
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<e3d3>
Good search-machine on ruby-dom.com; searching for 'string' gives me amazon ads for strings and other clothing !?
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