pub fn copy<P, Q>(from: P, to: Q, options: &CopyOptions) -> Result<u64> where
    P: AsRef<Path>,
    Q: AsRef<Path>, Expand description
Copies the directory contents from one place to another using recursive method. This function will also copy the permission bits of the original files to destionation files (not for directories).
Errors
This function will return an error in the following situations, but is not limited to just these cases:
- This frompath is not a directory.
- This fromdirectory does not exist.
- Invalid folder name for fromorto.
- The current process does not have the permission rights to access fromor writeto.
Example
ⓘ
extern crate fs_extra;
use fs_extra::dir::copy;
let options = CopyOptions::new(); //Initialize default values for CopyOptions
// options.mirror_copy = true; // To mirror copy the whole structure of the source directory
// copy source/dir1 to target/dir1
copy("source/dir1", "target/dir1", &options)?;