feat: add --git option to igniter.new

[albinkc]

the --git option does git init && git add . && git commit -m "Initial commit"

Contributor checklist

Leave anything that you believe does not apply unchecked.

• Bug fixes include regression tests
• Chores
• Documentation changes
• Features include unit/acceptance tests
• Refactoring
• Update dependencies

[zachdaniel]

Nice 👍

1. lets add an integration test for this, that uses System.cmd to run this in a tmp directory.
2. lets make that initial message include a list of what was installed initially

[zachdaniel]

Let's add 🔥 to the beginning of the initial commit too 😎

[albinkc]

Nice 👍

1. lets add an integration test for this, that uses `System.cmd` to run this in a tmp directory.

2. lets make that initial message include a list of what was installed initially

so I've semi-vibe coded an integration test, but not sure how to do the second one 😶

[zachdaniel]

For now, lets just add 🔥 initial commit 🔥

We can follow up with the other idea if we want

[albinkc]

Have added the flames again (messed up something when git pushing).
I think need to update CI to run mix test inside of installer/ (don't want to mess this up)
Please review.

[zachdaniel]

Well want to remove inspects etc.

[zachdaniel]

Had one comments. For the CI thing can you confirm the tests all pass locally? I can set up CI after we merge.

[zachdaniel]

Merging and adding some finishing touches 😄 This will become the default behavior, so it will actually be --no-git if you don't want it.

[albinkc]

Thanks a ton for picking this up