Possibility to have one-off execution of commands about ishell HOT 7 CLOSED

Yes, targeting different use cases with the same code base. I understand that this would be probably not that trivial - if we would add proper flag parsing and such... But we could start with the low hanging fruit: same command as in the interactive mode, just non-interactively executed. That alone would help a lot. All other bells & whistles might be non required. Just to keep the surface of this feature as small as possible.

If you think I could help somehow, just ask me. Would be glad to lend a hand on this :)

from ishell.

This is it https://godoc.org/github.com/abiosoft/ishell#Shell.Process.

e.g. shell.Process(os.Args[1:])

from ishell.

😻 @abiosoft It's awesome, thank you! This is exactly what I wanted! I will make a pull request with a Readme update later.

from ishell.

Thanks for your kind words :)

Can you explain a bit more about how that is expected to work and the usecases.

If I get you right, instead of getting into interactive mode, just execute the command and exit.

from ishell.

Hey, exactly this. The use case would be calling the binary in scripted environments without the possible complexities of real interactive environments. That would give you best of both worlds: interactive CLI with possibility for more traditional, non-interactive fallback with basically same results.

Some things might not work 100%, but still, that would be a really compelling reason to use ishell for everything CLI related in Go.

It should not be that hard, just getting the context, and executing the args in that env. Currently there is no public API for this...

We would have to figure out the best way to indicate the desired modus. Giving it an extra params at first position, that is then removed for all the commands, like:

$ /bin/some-cli scripted greet Someone Somehow

would understand, that is is non-interactive, call the greet command with modified args and after the execution exit the process. The exit code is up to a discussion. It could default to 0.

Do you think this could useful?

from ishell.

I think I get you now. Basically ishell without the interactiveness.

That sure can be done. I'm just thinking there are better libraries out there doing this already. e.g. spf13/cobra.

But I like the idea of toggling interactive and non-interactive mode with same code base.

from ishell.

I think it's safe to close this as the feature has been added.

Processing flags e.t.c are extra features and this thread can still be used for that discussion.

from ishell.