<jhass>
but maybe our definitions of scripting differ
<narayana>
For like general linux admin stuff.
<narayana>
Is it a good or bad idea to use `crystal run` over ruby ?
<jhass>
well, most of these tasks are IO bound rather than CPU bound
<jhass>
and don't require low level programming either
<jhass>
so it's a question of whether crystal can compile faster than ruby can boot up
<jhass>
and to be honest that's not the case
<narayana>
Ahhh ok
<jhass>
now if you'd have something that you execute very regularly, the same command, maybe with a couple of command line options, then you can precompile and optimize the crystal thingy and the resulting binary will indeed do bootup much faster than ruby
<jhass>
to me "scripting" is not a very well defined task, I pick the language on the actual task at hand
<jhass>
if all I do is spawn a bunch of other commands, rename a file, invoke something on it, pass its output to something else, I still write shell scripts because that's what shells are built for
<jhass>
I basically always have a pry session open for little one of thingies and as a calculator
<jhass>
for something IO bound I still pick ruby, also because it's more available
<narayana>
Very insightnful thanks
<jhass>
and turns out I don't write reusable CLI utilities much, so I rarely pick Crystal in that domain, but might be a possibility
<jhass>
I guess our cache works better than I would've thought
<jhass>
oh wait, that's over a minute, haha
<FromGitter>
<stellarpower> I was actually wanting to use crystal for scripting. I'm bothered about development speed, not runtime speed. I start projects as shell scripts because that's what I wanna write but it quickly becomes a real pain not having access to features of a real language
<jhass>
yeah, if I can forsee it becoming more complex than like five ifs I tend to just start in ruby
<livcd>
I dont use sh for anything. It's an abomination that needs to die.
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<raz>
pro-tip just write your scripts in the subset of crystal that also runs as ruby. :p
<raz>
you can even put #!/usr/bin/env ruby at the top, as crystal will ignore that as a comment
<FromGitter>
<stellarpower> Thank you!! I think some of these concepts have been around for so long and it's just people don't question to change things because they're well-used
<FromGitter>
<stellarpower> Like I am on a chat server at my university and saying I don't like python at all is controversial.
<FromGitter>
<stellarpower> Yes bash is a useful skill because it is everywhere if you're doing sysadmin stuff but if I said like you I'd rather get rid of it people would get antsy
<FromGitter>
<stellarpower> I was hoping to knock together a little shard to make running shell-type stuff a bit easier
<FromGitter>
<stellarpower> Ruby is what I would use but it's a little clunky getting popen3 working fully
<FromGitter>
<stellarpower> I was hoping I could do something in crystal that would nicely wrap system commands and overload the or operator to pipe automatically
<FromGitter>
<stellarpower> @raz is that if you explicitly call crystal on the file with the shebang?
<kevinsjoberg>
Have anyone read the "Programming Crystal" book? If so, I have a question; The book states Crystal does not have global variables but doing a regex match allow you to use $1, $2 and so on to reference matches. Aren't they global variables?
<kevinsjoberg>
Oh, doing some investigation on my own it looks like the regex variables aren't really "global" but method local.
<oprypin>
(with the `$0` entry being outdated, of course, as per the issue)
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<raz>
i love how every little thing gets such an elaborate explanation/discussion in crystal
<raz>
not all languages have that culture, it's a great asset
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<raz>
stellarpower: sorry, i was only tongue in cheek there. ;) while hybrid ruby/crystal scripts are possible, i don't think that's a maintainable idea :D
<FromGitter>
<stellarpower> Oh yes, was just curious, I remember reading that the shebang is done by the kernel somewhere and not the running shell
<FromGitter>
<stellarpower> Some langs explicitly handle a shebang line and others need a bit of help, I saw a video about go w.r.t that
<FromGitter>
<stellarpower> I like it too
<FromGitter>
<stellarpower> I am keen on C++, it seems fewer and fewer reasons to use it but it make me think more than I type
<FromGitter>
<stellarpower> I helped debug someone's code the other day without a compiler and I got to the root of the problem just from reading.
<FromGitter>
<stellarpower> I can't do that nearly as easily with Python.
<FromGitter>
<stellarpower> It makes one a better programmer I think to understand the theory and why things are that way. Conversely it's good for people in a domain to be able to have that abstracted
<FromGitter>
<stellarpower> I was actually porting something I wrote form python and the quickest thing was to use an automated Py->Rb script, make a few edits until it parsed okay, then point Crystal at it and start tidiyng up and then will go into the runtime issues and putting back in shards or standard library classes that do the equivalent
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<kevinsjoberg>
oprypin: Thanks for that. :)
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<FromGitter>
<confact> Does it exist some way to have a timer with a "hook" or call a method when that timer is reached?
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<FromGitter>
<Blacksmoke16> like js timeout?
<FromGitter>
<Blacksmoke16> setTimeout
<FromGitter>
<Blacksmoke16> prob could do something with a proc/fiber
<yxhuvud>
stellarpower: I find the `Process.spawn` to be the best way of doing processes in Ruby, especially when you need some extra bling for doing redirections.
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<ryanprior>
I'm interested in creating some desktop environment oriented flows in my app- for example, opening a link in the default browser, getting the name of the current browser, copying text to the clipboard, etc.
<ryanprior>
I can do that by shelling out to utils like `xdg-open`, `xdg-mime`, `xsel`- that's what they're for after all. But do you know if anybody's written Crystal wrappers for those things, or a library that handles those kinds of interactions?
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<jhass>
@confact: spawn { sleep X; hook; }
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<FromGitter>
<stellarpower> @yxhuvud cheers!
<FromGitter>
<stellarpower> Looks somewhat like Process in crystal