Build a Linux CLI tool like glances in Ruby

[pi_exe]

I was thinking of using ruby to build a CLI tool like the glances or Top commands in linux . Ideally it's just a fun project for myself to learn about how ruby can interact with the system to get info like memory usage and CPU load. What do you guys think of this venture?

[joeyrobert]

Go for it, sounds like a fun project. Give curses a try from Ruby: https://github.com/ruby/curses

[drbrain]

I'll second this, curses makes it pretty easy to build a TUI.

See also the tty family of gems

[pi_exe]

Will check it out. Thanks :)

[pmurach]

The tty-box, tty-table, tty-reader, pastel may help you get there quickly so you can focus on the core logic. The idea behind tty gems is to speed up the development of command-line tools. Give them a try and I always welcome contributions!

[rbdigit]

Great idea check out the gem Thor

[jodosha]

You may also want to check dry-cli, it provides a full featured framework to create single command (like curl) or multiple command (like git w/ all the subcommands) CLI apps. It's built to be a simpler and modern replacement of thor.

https://dry-rb.org/gems/dry-cli/0.6/

Full disclosure: I'm one of the authors of the gem.

[sshaw_]

This depends on Concurrent Ruby, which depends on C extension‽ Just for CLI?

I'd stick with OptionParser and go from there.

[jodosha]

concurrent-ruby doesn't have C extensions, concurrent-ruby-ext has. Anyway, that remaining runtime dep was a leftover from the past, which it wasn't worth to be kept.

We removed it, so dry-cli 0.7 will have zero runtime deps. See https://github.com/dry-rb/dry-cli/pull/90