Add Reset Project command

[HardCodeDev777]

Your project and its architecture are very cool, I really like it 👍

I decided to try implementing the Reset Project command from #14.

Summary

A new reset-project command that resets a Unity project by removing generated and cache files.
It keeps only Assets/, Packages/ and ProjectSettings/.

This provides a safe (with --dry-run 😁) and repeatable way to reset a project directly via UCLL.

[chrisyarbrough]

Cool, thanks for your contribution, @HardCodeDev777 ! Clean style and formatting!

I tested it and I believe it currently deletes a bit "too much". For example:

.gitignore
.sln.DotSettings (checked into git to share with team)
local ignored auth file (need to keep)
local ignored packages (not shared with team, e.g. special designer tool)
BuildPipeline folder (e.g. Jenkins scripts in project root)
...

It's similar to the git command which deletes all untracked files:

git glean -fd

Since that already exists, we don't need to provide this specific functionality in UCLL.

Let me propose inverting the logic:

• Search for known Unity directories to delete: Library, obj, Logs, Temp, UserSettings (because window layout is one of the things that can corrupt, probably other user settings from packages as well)
• Search for known Unity-generated files in project root: .sln, .csproj, .user (e.g. .sln.DotSettings.user)

Basically, we want to get rid of things that can corrupt project state and which users would sometimes manually delete to fix issues. I consider all user settings to fall into this category.

We can assume that most users will be using version control, so they can always use their vcs to delete everything untracked, but for UCLL it makes most sense to focus on specific Unity file system entries.

If you agree, please go ahead and implement the changes, I'll help you test (I have quite a few large-scale company projects that I can use). And thanks again! :)

[chrisyarbrough]

See comment: #27 (comment)

(ha, I'm still figuring out how GitHub works)