Git feature

[cinghiopinghio]

Hi,

This is my attempt to implement the github feature as in #27 .

I added the -g command argument to use git ls-files as a file and folder factory.

It works in my environment and passed all test in your test folder (after adding -g to stowsh in all run scripts).

Yet to be done: add permanently tests to the test suite.

[mikepqr]

This looks great too! Thanks. I'll take a proper look as soon as I can.

In the meantime, the test system is very hacky but it should be self explanatory. You create a directory for the package and directories for what the target look like once it's installed and after it's uninstalled. In this case you'd presumably want to test .gitignored files and untracked files do not make it into the installation if -g is on. Test coverage isn't great (#21) and I have vague plans to move to a real bash unit test framework, so I won't block this merge on the absence of tests, but it would be great to see them!

[cinghiopinghio]

I have added a test for the git feature.
It was actually useful as I could spot a small bug in folders with no git files!
Cheers.

[mikepqr]

Looks great! Just one issue that does need fixing, but should be pretty straightforward. Let me know if you have any trouble with my request.

[cinghiopinghio]

Should work now

[cinghiopinghio]

I'm not sure if I have any more tasks to do in this "review request" (first timer).

[mikepqr]

Thanks! LGTM. Tested on macOS.

I think this is ready to merge once you add the quotes (see inline comment) and squash into a single commit. (I think the standard github workflow for that is something like git rebase -i main to tidy up, and then git push -f once you're done to update this PR. Let me know if you have any difficulties.)

[mikepqr]

Thank you for your contribution!