- some warnings are muted since fixing them right now can be a breaking
API change
- fix Clippy warns in the src, examples and tests
Tested:
- Local test run
The `?` operator exists since Rust version 1.13.0 and has since become the
standard and recommended variant over the `try!` macro (see
https://doc.rust-lang.org/std/macro.try.html where it is explicitly mentioned to
use the `?` operator instead of the `try!` macro).
I think it is especially useful to replace the `try!` usages throughout the
examples (since new users might not be familiar with the `try!` macro at all).
This change adds a FileOptions struct. This struct can be filled using a builder pattern
to set the options for a file or folder.
With this change, we also introduce the option to set the (unix) permissions of a file or folder.
