make instance and make switch should optionally source ~/.bashrc

[EnigmaCurry]

Discussed in #87

^{Originally posted by mcmikemn July 29, 2023}
When you make instance, d.rymcg.tech creates a sub-shell for the new instance. Can that subshell retain or copy the environment from the main shell? For example, I have aliases set up in .bashrc in my main shell, but they're not available in the sub-shell.

Because we cannot control what a user has in their ~/.bashrc it should not be the default behaviour to source it in the make instance subshell, however it might be nice to extend the environment by sourcing a select file by configuration.

A root environment variable like MAKE_INSTANCE_SOURCE_RCFILE= would be blank (or /dev/null) by default, but if you set this variable to a file path, it should source that file it before the other variables in the make instance/switch script, thus extending the user's environment.

[mcmikemn]

I also just noticed that completion is only partial in subshells. I can type d.r and press the key and it autocompletes to d.rymcg.tech - which is good. But if I type d.rymcg.tech con and press , it does not autocomplete to d.rymcg.tech context like it does in the main shell.

[EnigmaCurry]

You just need to eval the completion code the same way as is in your .bashrc, so I think it will be solved by adding MAKE_INSTANCE_SOURCE_RCFILE:

## Put this in whatever file MAKE_INSTANCE_SOURCE_RCFILE points to:
export PATH=${PATH}:${HOME}/git/vendor/enigmacurry/d.rymcg.tech/_scripts/user
eval "$(d.rymcg.tech completion bash)"

[mcmikemn]

Oh, I see. Completeion isn't configured within d.ry, it's configured within my shell, and hence not (currently) in the subshell.

[mcmikemn]

I just pushed ffda844, but it doesn't work yet. I'm struggling with the syntax to make the subshell source the file.

[EnigmaCurry]

open a pull request and i will review.