implement 'source' builtin command

[ngklingler]

Hey,

I noticed your shell does not have the source command as one of its builtins, which lets you source rc files during a session. It works like this: make a change to ~/.cicadarc, run source ~/.cicadarc, and any changes you made to your RC file will then be loaded. I was a pretty simple implementation, I just had to call the load_file function in the rcfile module. I hope you will incorporate this into your project.

[mitnk]

Hi @ngklingler, Thanks for the PR.

The source builtin should be more capable than just loading rcfile. It should also run cicada scripts (which is not supported yet, see the two big todo in readme).

But reloading refile is a useful feature. We can merge this PR with the following adjust:

1. Check the input file, if it ends with "cicadarc", then reload the rc, otherwise, we print a hint that "scripting in cicada is still work in progress".

2. Can you add source into src/completers/path.rs around line 168. So cicada completion knows this new builtin.

3. Also a small item in Changelog would be great.

[ngklingler]

Hey @mitnk

Good call on those points. I changed the source commmand to check that the specified file ends in "cicadarc" if it does, we load the file; if it doesn't then it throws an error that only loading from cicadarc files is supported and scripting is a WIP. I added the source command to the completer, and I updated the changelog to mark this change. Let me know if anything else should be done.

[mitnk]

I think here we should have a return 1; :)

[ngklingler]

Fixed 23ec537

Wouldn't be coding if I didn't introduce an error :)

[mitnk]

Looks great! Thanks again!