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//! This module defines the [PermissionFlag]. To set it up from [Cli], a [Config] and its
//! [Default] value, use its [configure_from](Configurable::configure_from) method.
use super::Configurable;
use crate::app::Cli;
use crate::config_file::Config;
use serde::Deserialize;
/// The flag showing which file permissions units to use.
#[derive(Clone, Debug, Copy, PartialEq, Eq, Deserialize, Default)]
#[serde(rename_all = "kebab-case")]
pub enum PermissionFlag {
/// The variant to show file permissions in rwx format
#[default]
Rwx,
/// The variant to show file permissions in octal format
Octal,
/// Disable the display of owner and permissions, may be used to speed up in Windows
Disable,
}
impl PermissionFlag {
fn from_arg_str(value: &str) -> Self {
match value {
"rwx" => Self::Rwx,
"octal" => Self::Octal,
"disable" => Self::Disable,
// Invalid value should be handled by `clap` when building an `Cli`
other => unreachable!("Invalid value '{other}' for 'permission'"),
}
}
}
impl Configurable<Self> for PermissionFlag {
/// Get a potential `PermissionFlag` variant from [Cli].
///
/// If any of the "rwx" or "octal" arguments is passed, the corresponding
/// `PermissionFlag` variant is returned in a [Some]. If neither of them is passed,
/// this returns [None].
/// Sets permissions to rwx if classic flag is enabled.
fn from_cli(cli: &Cli) -> Option<Self> {
if cli.classic {
Some(Self::Rwx)
} else {
cli.permission.as_deref().map(Self::from_arg_str)
}
}
/// Get a potential `PermissionFlag` variant from a [Config].
///
/// If the `Config::permissions` has value and is one of "rwx" or "octal",
/// this returns the corresponding `PermissionFlag` variant in a [Some].
/// Otherwise this returns [None].
/// Sets permissions to rwx if classic flag is enabled.
fn from_config(config: &Config) -> Option<Self> {
if config.classic == Some(true) {
Some(Self::Rwx)
} else {
config.permission
}
}
}
#[cfg(test)]
mod test {
use clap::Parser;
use super::PermissionFlag;
use crate::app::Cli;
use crate::config_file::Config;
use crate::flags::Configurable;
#[test]
fn test_default() {
assert_eq!(PermissionFlag::Rwx, PermissionFlag::default());
}
#[test]
fn test_from_cli_none() {
let argv = ["lsd"];
let cli = Cli::try_parse_from(argv).unwrap();
assert_eq!(None, PermissionFlag::from_cli(&cli));
}
#[test]
fn test_from_cli_default() {
let argv = ["lsd", "--permission", "rwx"];
let cli = Cli::try_parse_from(argv).unwrap();
assert_eq!(Some(PermissionFlag::Rwx), PermissionFlag::from_cli(&cli));
}
#[test]
fn test_from_cli_short() {
let argv = ["lsd", "--permission", "octal"];
let cli = Cli::try_parse_from(argv).unwrap();
assert_eq!(Some(PermissionFlag::Octal), PermissionFlag::from_cli(&cli));
}
#[test]
fn test_from_cli_permissions_disable() {
let argv = ["lsd", "--permission", "disable"];
let cli = Cli::try_parse_from(argv).unwrap();
assert_eq!(
Some(PermissionFlag::Disable),
PermissionFlag::from_cli(&cli)
);
}
#[test]
#[should_panic]
fn test_from_cli_unknown() {
let argv = ["lsd", "--permission", "unknown"];
let _ = Cli::try_parse_from(argv).unwrap();
}
#[test]
fn test_from_cli_permissions_multi() {
let argv = ["lsd", "--permission", "octal", "--permission", "rwx"];
let cli = Cli::try_parse_from(argv).unwrap();
assert_eq!(Some(PermissionFlag::Rwx), PermissionFlag::from_cli(&cli));
}
#[test]
fn test_from_cli_permissions_classic() {
let argv = ["lsd", "--permission", "rwx", "--classic"];
let cli = Cli::try_parse_from(argv).unwrap();
assert_eq!(Some(PermissionFlag::Rwx), PermissionFlag::from_cli(&cli));
}
#[test]
fn test_from_config_none() {
assert_eq!(None, PermissionFlag::from_config(&Config::with_none()));
}
#[test]
fn test_from_config_rwx() {
let mut c = Config::with_none();
c.permission = Some(PermissionFlag::Rwx);
assert_eq!(Some(PermissionFlag::Rwx), PermissionFlag::from_config(&c));
}
#[test]
fn test_from_config_octal() {
let mut c = Config::with_none();
c.permission = Some(PermissionFlag::Octal);
assert_eq!(Some(PermissionFlag::Octal), PermissionFlag::from_config(&c));
}
#[test]
fn test_from_config_classic_mode() {
let mut c = Config::with_none();
c.classic = Some(true);
assert_eq!(Some(PermissionFlag::Rwx), PermissionFlag::from_config(&c));
}
}
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