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|
use crate::color::{ColoredString, Colors, Elem};
use crate::Flags;
#[cfg(unix)]
use std::fs::Metadata;
#[cfg(unix)]
use users::{Groups, Users, UsersCache};
#[derive(Default)]
pub struct Cache {
#[cfg(unix)]
users: UsersCache,
#[cfg(unix)]
groups: UsersCache,
}
#[cfg(unix)]
#[derive(Clone, Debug, Default)]
pub struct Owner {
user: u32,
group: u32,
}
#[cfg(windows)]
#[derive(Clone, Debug, Default)]
pub struct Owner {
user: String,
group: String,
}
impl Owner {
#[cfg(windows)]
pub fn new(user: String, group: String) -> Self {
Self { user, group }
}
}
#[cfg(unix)]
impl From<&Metadata> for Owner {
fn from(meta: &Metadata) -> Self {
use std::os::unix::fs::MetadataExt;
Self {
user: meta.uid(),
group: meta.gid(),
}
}
}
fn truncate(input: &str, after: Option<usize>, marker: Option<String>) -> String {
let mut output = input.to_string();
if let Some(after) = after {
if output.len() > after {
output.truncate(after);
if let Some(marker) = marker {
output.push_str(&marker);
}
}
}
output
}
impl Owner {
// allow unused variables because cache is used in unix, maybe we can cache for windows in the future
#[allow(unused_variables)]
pub fn render_user(&self, colors: &Colors, cache: &Cache, flags: &Flags) -> ColoredString {
#[cfg(unix)]
let user = &match cache.users.get_user_by_uid(self.user) {
Some(user) => user.name().to_string_lossy().to_string(),
None => self.user.to_string(),
};
#[cfg(windows)]
let user = &self.user;
colors.colorize(
truncate(
user,
flags.truncate_owner.after,
flags.truncate_owner.marker.clone(),
),
&Elem::User,
)
}
// allow unused variables because cache is used in unix, maybe we can cache for windows in the future
#[allow(unused_variables)]
pub fn render_group(&self, colors: &Colors, cache: &Cache, flags: &Flags) -> ColoredString {
#[cfg(unix)]
let group = &match cache.groups.get_group_by_gid(self.group) {
Some(group) => group.name().to_string_lossy().to_string(),
None => self.group.to_string(),
};
#[cfg(windows)]
let group = &self.group;
colors.colorize(
truncate(
group,
flags.truncate_owner.after,
flags.truncate_owner.marker.clone(),
),
&Elem::Group,
)
}
}
#[cfg(test)]
mod test_truncate {
use crate::meta::owner::truncate;
#[test]
fn test_none() {
assert_eq!("a", truncate("a", None, None));
}
#[test]
fn test_unchanged_without_marker() {
assert_eq!("a", truncate("a", Some(1), None));
}
#[test]
fn test_unchanged_with_marker() {
assert_eq!("a", truncate("a", Some(1), Some("…".to_string())));
}
#[test]
fn test_truncated_without_marker() {
assert_eq!("a", truncate("ab", Some(1), None));
}
#[test]
fn test_truncated_with_marker() {
assert_eq!("a…", truncate("ab", Some(1), Some("…".to_string())));
}
}
|
