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// Copyright 2018-2022 System76 <info@system76.com>
// SPDX-License-Identifier: MIT OR Apache-2.0

use crate::supported::SupportedFilesystems;

/// Defines how the file system type should be derived for a mount -- auto or manual
#[derive(Clone, Copy, Debug)]
pub enum FilesystemType<'a> {
    /// The automatic variant will iterate through a list of pre-generated supported
    /// file systems, and attempt to mount each one before giving up.
    Auto(&'a SupportedFilesystems),
    /// The caller can avoid costly trial-and-error iteration with this variant.
    Manual(&'a str),
    /// A specific set of file systems to attempt to mount with.
    Set(&'a [&'a str]),
}

impl<'a> From<&'a SupportedFilesystems> for FilesystemType<'a> {
    fn from(s: &'a SupportedFilesystems) -> Self {
        FilesystemType::Auto(s)
    }
}

impl<'a> From<&'a str> for FilesystemType<'a> {
    fn from(s: &'a str) -> Self {
        FilesystemType::Manual(s)
    }
}

impl<'a> From<&'a [&'a str]> for FilesystemType<'a> {
    fn from(s: &'a [&'a str]) -> Self {
        FilesystemType::Set(s)
    }
}