Fix: Correctly ignore files that start with a `.` (eg. `.DS_Store`)

[jlwbr]

This pr adresses 2 issues:

1. #399: .DS_Store files where not ignored, this was caused by the pathlib library treating a file starting with a dot the same as a file without an extension. We now treat the whole filename as the extension in this case.
2. When a file is already indexed in the library, but is excluded later, it will stay in the library (only new files are excluded). We now remove these files from the library when refreshing.

Closes #399

[eivl]

Is this a to broad fix? seems overkill to exclude all files that are hidden under linux/macos/unix just to remove a macos .DS_Store file. wouldn't it make more sense to just ignore that file, and continue to extend the list of ignored files as they appear?

[jlwbr]

Is this a to broad fix? seems overkill to exclude all files that are hidden under linux/macos/unix just to remove a macos .DS_Store file. wouldn't it make more sense to just ignore that file, and continue to extend the list of ignored files as they appear?

That's not how this fix works, it just treats the name of the dot file the same as an extension of a normal file. (Eg excluding .json will exclude a.json and .json so a file with only an extension is treated the same as a file with an name and an extension.

[CyanVoxel]

Is this a to broad fix? seems overkill to exclude all files that are hidden under linux/macos/unix just to remove a macos .DS_Store file. wouldn't it make more sense to just ignore that file, and continue to extend the list of ignored files as they appear?

That's not how this fix works, it just treats the name of the dot file the same as an extension of a normal file. (Eg excluding .json will exclude a.json and .json so a file with only an extension is treated the same as a file with an name and an extension.

I also presumed that this was hiding all files with a leading dot as Unix would, my mistake for not reading more closely.

I feel treating files with leading dots as toggleable hidden files instead of as extensions would make more sense, since that's how these files are designed to be treated. Plus if you had a file such as ".file.json", this wouldn't be registered as a proper ".json" file despite it being a valid file extension on a Unix hidden file.

[jlwbr]

Thank you for this! I feel however this would be better as a toggle, perhaps to the left of the existing search options. I would also expect this to handle Windows' hidden file implementation, however I understand if that's out of the scope of what you're able to do.

Example:

I will try this next week, I had the idea of changing up the system so that uses the same syntax as .gitignore this way, you can exclude whole files, all files with a particular extension, etc. But thought that that might be to big of a change for now and might also be to difficult to understand for some people without some solid ui around it.

[CyanVoxel]

I will try this next week, I had the idea of changing up the system so that uses the same syntax as .gitignore this way, you can exclude whole files, all files with a particular extension, etc. But thought that that might be to big of a change for now and might also be to difficult to understand for some people without some solid ui around it.

There's actually an issue associated with this (#14) if you'd be interested in taking a stab at it

[CyanVoxel]

@jlwbr Just wanted to touch base on this. A lot has changed in the codebase since this was last worked on, with the biggest being the merging of #332 which introduces a new library backend rendering this PR incompatible in its current state.

Would you still be interested in addressing #399?