<leftylink>
then perhaps the approach to solving this problem must not involve putting that many integers into an array
<leftylink>
some other tack is called for
<havenwood>
poro_: That's a big number, so best to operate "lazily."
<havenwood>
poro_: As an incremental improvement, I'd next swap out the while statement and instead enumerate an enumerator or range.
<havenwood>
(2..600851475145) do |i|
<havenwood>
2.upto(600851475145) do |i|
<havenwood>
poro_: Either of those ^ are nice. The former is a little "lighter weight" and the latter reads nicely to me.
<havenwood>
poro_: With those ^, I'd think you'd push once before iterating, but the rest of the code could stay the same.
<havenwood>
poro_: In any case, go for #each, #map, and friends frequently.
<havenwood>
poro_: #map more than #each, #each more than while.
<poro_>
yea Im gonna read up on those, Im thinking that even with my current code, if I were to wait for the array to fully populate then the program would also break because of how big it is
<poro_>
so is best to solve the problem without having a huge array
<havenwood>
poro_: Agreed.
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<phaul>
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<aces1up>
so I have an array with different elements.. I want to create another array from original array, but replicate is so something like 5.times do |x| new_arr << orig_array[x]] end but if the orig array is smaller than the number of elements I want in new array old array should loop back around to beginning and start adding again to new array..
<leftylink>
to have a general idea of what's available in Array and Enumerable will add many useful tools to one's toolbox
<aces1up>
what enumerable method would I use to do this?
<leftylink>
one who knows Enumerable would also observe that Enumerable#cycle is possible for this job, but it may have to be paired with an Enumerable#take depending on the circumstances
<leftylink>
.... OH WHAT, TIL
<leftylink>
Enumerable#cycle takes an integer argument????????????????????????
<leftylink>
holy crap
<leftylink>
I didn't know this
<leftylink>
excuse me, got too emotional there
<aces1up>
thanks will check it out
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<aces1up>
i think cycle will work with a break after I get the number of elements i need.
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<nemesit|znc>
anyone know how to catch (undefined method `class_name' for nil:NilClass) when calling .klass on a reflection from reflect_on_all_associations
<nemesit|znc>
?
<nemesit|znc>
I tried almost everything but it seems the error doesn't care about begin rescue or anything
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<sagax>
hi all!
<sagax>
Enumerator can some events? like as .when_enum_reach_end do {something}
<sagax>
?
<pwnd_nsfw`>
sagax, just.... run code right after you've finishe dlooping?
<sagax>
i don't know when it finished
<pwnd_nsfw`>
It does though
<pwnd_nsfw`>
loop {}
<pwnd_nsfw`>
some_code_after
<sagax>
can't, because i send enumerator from IO.popen (IO.popen(cmd).each) as http response body
<sagax>
and i must close IO when enumerator reach eof
<pwnd_nsfw`>
Does it close at the end of it's block?
<pwnd_nsfw`>
If a block is given, Ruby will run the command as a child connected to Ruby with a pipe. Ruby's end of the pipe will be passed as a parameter to the block. At the end of block, Ruby closes the pipe and sets $?. In this case IO.popen returns the value of the block.
<pwnd_nsfw`>
There's even an eof method
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<adam12>
Anybody seen any projects that co-locate test files beside source files and _not_ inside (spec|test)? Only one I can think of is Que but I'm sure there are others out there.
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<nemesit|znc>
nobody an idea?
<nemesit|znc>
why does begin rescue not work?
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<adam12>
nemesit|znc: Are you passing an argument to rescue?
<ElderMalaclypse>
Taken out of context, that's a weird question.
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<adam12>
nemesit|znc: NoMethodError inherits from NameError which inherits from StandardError. A naked rescue should be fine. If it's not, then can you show your begin/rescue block and the full backtrace, in a Github Gist.
<adam12>
&>> begin; nil.bar; rescue; "rescued"; end
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<adam12>
nemesit|znc: And the code you're using?
<adam12>
nemesit|znc: Not much to go on here. You should be able to rescue NoMethodError without issue.
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<nemesit|znc>
found association_primary_key which seems to work way better for this anyway
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<AndreYuhai>
Hey there, I am using Google Cloud Vision API. I've already set GOOGLE_APPLICATION_CREDENTIALS environment variable to my private key file path. When I try to do text detection from within irb everything works fine but when I try the same thing in RubyMine I get this: https://dpaste.org/bqjr#L9 couldn't load credentials runtime error.
<AndreYuhai>
Don't know why it works in irb but not in RubyMine.
<havenwood>
AndreYuhai: Does it work if you launch RubyMine from the terminal?
<AndreYuhai>
havenwood, let me check
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<AndreYuhai>
havenwood, yes, it works when I launch it from the terminal.
<havenwood>
AndreYuhai: I suspect a requisite environment variable set in your terminal dotfiles is not set in RubyMine.
<havenwood>
AndreYuhai: Or launch RubyMine from the terminal. ;)
<AndreYuhai>
havenwood, is there any chance I could find that? :D
<havenwood>
AndreYuhai: Use the scientific method with quick iterations to test your hypotheses.
<havenwood>
AndreYuhai: Can you make it break when launched from the terminal by unsetting environment variables?
<AndreYuhai>
havenwood, you mean unset all of them?
<havenwood>
AndreYuhai: For example, `unset RUBY_HOME` then launch RubyMine from the terminal and test if it works.
<havenwood>
AndreYuhai: To see the list of possible culprits: printenv
<AndreYuhai>
havenwood, oh sure I can do that. Do I need to restart my terminal or something after I unset a variable?
<havenwood>
printenv | cut -d"=" -f1
<havenwood>
AndreYuhai: Nope
<havenwood>
AndreYuhai: Once unset, it's unset.
<havenwood>
AndreYuhai: See, for example: export FOO=bar; unset FOO
<havenwood>
It's no longer exported.
<havenwood>
You can likewise unset a function with: unset -f
<havenwood>
Or an alias with: unalias
<havenwood>
It's important to know how to tear things down.
<LaoMalaclypse>
"unset" depends on your shell
<havenwood>
LaoMalaclypse: Good point, as it's typically a shell builtin.
<AndreYuhai>
alright, I just 80 environment variables when I did printenv. Gotta start from somewhere hahaha.
<havenwood>
I'm speaking only for bash and zsh.
<havenwood>
LaoMalaclypse: Is it not POSIX though?
<LaoMalaclypse>
Consider csh.
<LaoMalaclypse>
I don't recall whether csh has unset.
<LaoMalaclypse>
There are some weird shells floating around out there, too.
<havenwood>
LaoMalaclypse: It does.
<havenwood>
LaoMalaclypse: (Since I think it's POSIX.)
<LaoMalaclypse>
It's not, strictly, as far as I'm aware, but maybe I'm mistaken.
<LaoMalaclypse>
Of course, to the extent it's not strictly POSIX-compliant, it's probably not much worse than Bash.
<leah2>
wtf
<leah2>
csh has nothing to do with posix sh
<LaoMalaclypse>
Hell, I seem to recall even dash had a POSIX issue or two.
<LaoMalaclypse>
I think to be POSIX compliant it might need the ksh-style assignment syntax.
<LaoMalaclypse>
csh differs in that regard
<havenwood>
LaoMalaclypse: ksh has unset as well, just adds a -n flag
<havenwood>
-fv is standard
<havenwood>
with -v as default
<LaoMalaclypse>
I seem to recall that POSIX sh was derived from ksh by eliminating much of ksh, such that strict Bourne isn't compliant but strct ksh should be. Nobody uses strict ksh any longer, though, as far as I'm aware.
<havenwood>
unset isn't universally portable but it's widely supported and there is no better way I could possibly suggest. ¯\_(ツ)_/¯
<LaoMalaclypse>
Maybe someone has a vintage AT&T ksh runnnig in production.
<LaoMalaclypse>
havenwood: true
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<LaoMalaclypse>
Something like "FOO=" in some shells might be equivalent to "FOO=''" instead of equivalent to "unset FOO".
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<LaoMalaclypse>
I guess all I meant by questioning it is "Hey, AndreYuhai -- are you using Bash or Zsh, or something else?"
<LaoMalaclypse>
most likely Bash or Zsh, though
<AndreYuhai>
LaoMalaclypse, yes it's bash :)
<LaoMalaclypse>
I'm sorry.
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<havenwood>
LaoMalaclypse: Fish and Nu don't support `uset`.
<apotheon>
Aha!
<apotheon>
Fish. That's the one.
<havenwood>
It looks like zsh, bash, csh, ksh, dash, sh, and so on do.
<apotheon>
I loathe Fish.
<apotheon>
I suppose you could get the equivalent of unset by using the browser config interface for Fish, or something equally insane.
<apotheon>
What's this "Nu" of which you speak?
<leah2>
pretty sure csh uses unsetenv
<apotheon>
Is it as bad as Fish?
<apotheon>
leah2: Oh, yeah, I knew there was something screwy.
<apotheon>
(with csh unset)
<leah2>
fish uses set -e variable
<leah2>
very smart choice >.>
<apotheon>
. . . so csh unset should work for "regular" variables, but not environment variables.
<apotheon>
leah2: seems fishy to me
<apotheon>
That whole shell stinks.
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<apotheon>
I had a boss who unironically preferred Fish until I got laid off in 2016.
<apotheon>
I'd rather use scsh or Ypsilon as my shell.
<havenwood>
Things Yehuda works on tend to be nice.
<apotheon>
hmm
<apotheon>
The Nu features "beautiful tables", "fun with data", and "structured data" seem like they should've been pipeline utilities.
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<apotheon>
It might be nifty, though, I suppose.
<phaul>
anybody remembers what that shell thing was that tried to be more interactive like output of ls became clickable entries that get you in the directory etc. I think it was in ruby. But I can't remember the name..
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<phaul>
At the time I thought it was interesting, but I guess the project died
<adam12>
Anybody seen any projects that co-locate test files beside source files and _not_ inside (spec|test)? Only one I can think of is Que but I'm sure there are others out there.
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<ruby-lang715>
i need a datetime obj to print the weekday in german ... @dt.strftime('%a')
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<ruby-lang715>
how can i set the locale ( in plain ruby)
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<jhass>
phaul: I totally remember what you mean, but no name :D
<jhass>
looks like it got a different focus now though
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<phaul>
yeah, that was it
<jhass>
I think my problem with this kind of stuff is that it's too unspecific, too general. I don't have any "problem -> xiki" association, like I have for example "count lines -> wc -l", search something -> "grep, ag, find" etc
<jhass>
so I end up never using it thus never learning it
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<phaul>
same here. This new nu shell reminded me of this, but it could be totally different. I spend very little time at the shell anyways, 99% of my time is in the editor.
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<jhass>
which might make the new editor focus of xiki to actually be a smart move
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<xco>
trying to scrape content using Ruby, the content is behind an Authy authentication, what will be the best way to validate credentials to go past the 2fa?
<xco>
in other words, how can i programatically get an auth 2fa code that i can use with 'mechanize' gem to bypass 2fa? :)
<jhass>
2fa is a general term, there's many implementations such as E-Mail, Telephony, TOTP, U2F, WebAuthn
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<xco>
jhass yeah right. thought i mentioned it's an OTP code from Authy
<jhass>
OTP is again general and there's more than one implementation. I guess TOTP. The algorithm is public, I'm sure you can find a ruby implementation
<xco>
jhass thank you. i understand they are implementations. problem i'm trying to overcome here is for a given web app, i have tokens for it on my Authy app, which is on my mobile phone. is there a way to programmatically get the tokens (codes) on my phone that i can pass to Mechanize to by pass the 2fa part of the web app?
<jhass>
TOTP's only input is a key, extract it from your phone (or the QR code before scanning it into your phone if the service doesn't give you a textual version), use it as input to a ruby implementation
<xco>
jhass there's no qr code. in the web app i just entered my gmail and got the entry in my auth mobile app, plus even if there were a qr code the token changes periodically
<jhass>
so it's not TOTP but a propriarity implementation?
<jhass>
if my guess it's TOTP was wrong, of course that doesn't apply
<jhass>
I guess you may reverse engineer the API the mobile is using
<xco>
jhass if my understand is correct Authy is a TOTP mobile app
<xco>
jhass to be honest i don't know the implementation details here but this is what i'm taking about https://authy.com/
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<xco>
i have it as a mobile app. which provides codes for me to login to some webapp. i'm looking for ways to authenticate a ruby script to bypass the level to scrape content
<jhass>
xco: nobody's gonna reverse engineer that for you, sorry :)
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<havenwood>
jhass: Yes, xiki! I couldn't remember that for the life of me.
<jhass>
havenwood: heh we figured that one out hours ago :D
<havenwood>
haha
<jhass>
seeing_is_believing had me get a rubygems.org dump to search with SQL queries...
* havenwood
reads backlog
<jhass>
which actually made me find spam along the way xD
<xco>
jhass yup thanks anyway... got some idea from havenwood
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<AndreYuhai>
havenwood, The problem is still with the GOOGLE_APPLICATION_CREDENTIALS environment variable. Because when I set it manually in RubyMine from Run Configurations, it works fine.
<AndreYuhai>
I don't know why RubyMine does not see that
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<siery>
Good day, is there is a way to overwrite a method with yield inside? Given following example, when attempting to define a block with `M.define_a!` you get `LocalJumpError (no block given (yield))`