Diving into Go by building a CLI application

Re:Diving into Go by building a CLI application by Groxx on Wednesday May 27, 2020 @05:26AM (#23321086)

Alternative: I'd say Java (or similar), since it has the language abilities and sophisticated static analysis tools are readily available. But startup time is still not interactively-fast, so for CLIs it's sorta a no. For long-running processes tho I mostly like it, and stuff like compacting GCs keeps it running healthier much more easily than Go.

Beyond that, dunno - I usually reach for Python since I've written it professionally for a few years and it's pleasantly terse. But it's a fair bit of work to make actually fast and I don't generally think it's worth that effort. Go is much easier there... as long as it's kept simple.

I have some strong hope for Rust, but I think it's fair to label it as "still maturing", though it's already very far of ahead many langs in some areas. And I just don't have much experience with it yet, so have no real conclusions ¯\_(ツ)_/¯

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Re:Diving into Go by building a CLI application by vips7L on Wednesday May 27, 2020 @08:03AM (#23321977)

Java has made some strides with startup time. It's still a little bit slower than python when loading the full vm.

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Re:Diving into Go by building a CLI application by apta on Wednesday May 27, 2020 @10:12PM (#23332669)

> But startup time is still not interactively-fast, so for CLIs it's sorta a no

They're working on it, for example: https://openjdk.java.net/jeps/310

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Re:Diving into Go by building a CLI application by Groxx on Friday May 29, 2020 @04:55PM (#23355432)

They've been working on it for quite a while, yeah :) I appreciate it and they've made quite a lot of progress... but it's still nowhere near Go, and I mostly doubt it ever will be.

    # time ./hellogo 
    hello world
    
    real 0m0.005s
    user 0m0.001s
    sys  0m0.005s

It's probably "good enough" for many cases nowadays tho, yes, e.g.: https://cl4es.github.io/2019/11/20/OpenJDK-Startup-Update.ht...

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Re:Diving into Go by building a CLI application by apta on Saturday May 30, 2020 @12:23AM (#23358452)

You might want to check out: https://quarkus.io/

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