support --show-template or --show-config to allow inspecting the succinct config form of the active config

[dwt]

While using fence, I frequently want to look into the templates to understand what they do. From the shell there is --debug, but that shows the native sandbox commands which are very verbose.

I would like something more like --show-template that shows the configuration of the chosen template. For chained template, this could either show the chain, or the merged down form that is used internally to generate the sandbox.

Perhaps --show-config could be a better name to show the currently active config in a merged down view?

What do you think, does that make sense?

[jy-tan]

This makes sense, I prefer --show-config, or even --show, as it's more general.

# Show the `code` template
fence -t code --show

# Show the user-defined config (resolved/merge if extending another)
fence -s "path/to/config.json" --show

# Show the user config at the default path
fence --show

Does this align with how you're thinking about it?

I agree with the direction, feel free to create a PR!

[dwt]

Yes, that does align with what I'm thinking. Not sure I'll be able to produce more than a slop PR, as I have never programmed in GO before. :/