Support for creating new zip files?

[Boscop]

I noticed this crate supports creating new files in a zip file, but it doesn't support creating a new zip file yet. It would be very useful to also support that :)

[icefoxen]

Seems like the easy way would just be to use the zip crate, and anything this provides would just be a thin layer atop that. Zip files aren't really designed to be modified or created in anything other than batch mode, as far as I can tell. What kind of API would you want from such functionality?

[Boscop]

Ideally the API would mirror the std fs API as much as possible, so that one can enable/disable whether a zip file is used or the fs is used directly, with minimal code changes (or even switchable at runtime based on a config).
E.g. things like creating/deleting dirs/files, path.exists() etc.

[icefoxen]

Using the zip crate at least, that would involve essentially creating a new zip file from scratch on every modification. This sounds like a great way to produce more issues 6 months from now saying "file operations in a zip file are slow!" XD