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use crate::error::{Error, PermissionType, Result};
use std::fs::File;
use std::io::ErrorKind;
use std::path::Path;
pub fn open_file(filename: &Path) -> Result<Option<File>> {
File::open(filename).map(Some).or_else(|e| match e {
e if e.kind() == ErrorKind::NotFound => Ok(None),
e if e.kind() == ErrorKind::PermissionDenied => Err(Error::Permissions(
PermissionType::Read,
filename.to_path_buf(),
)),
e => Err(Error::from(e)),
})
}
pub fn create_file(filename: &Path) -> Result<File> {
File::create(filename).map_err(|e| {
if e.kind() == ErrorKind::PermissionDenied {
Error::Permissions(PermissionType::Write, filename.to_path_buf())
} else {
Error::from(e)
}
})
}
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