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use ansi_term::{ANSIString, Colour, Style};
use lscolors::{Indicator, LsColors};
use std::collections::HashMap;
#[allow(dead_code)]
#[derive(Hash, Debug, Eq, PartialEq, Clone)]
pub enum Elem {
/// Node type
File {
exec: bool,
uid: bool,
},
SymLink,
BrokenSymLink,
Dir {
uid: bool,
},
Pipe,
BlockDevice,
CharDevice,
Socket,
Special,
/// Permissions
Read,
Write,
Exec,
ExecSticky,
NoAccess,
/// Last Time Modified
DayOld,
HourOld,
Older,
/// User / Group Name
User,
Group,
/// File Size
NonFile,
FileLarge,
FileMedium,
FileSmall,
}
impl Elem {
pub fn has_suid(&self) -> bool {
match self {
Elem::Dir { uid: true } | Elem::File { uid: true, .. } => true,
_ => false,
}
}
}
pub type ColoredString<'a> = ANSIString<'a>;
#[allow(dead_code)]
#[derive(Debug, Copy, Clone)]
pub enum Theme {
NoColor,
Default,
NoLscolors,
}
pub struct Colors {
colors: Option<HashMap<Elem, Colour>>,
lscolors: Option<LsColors>,
}
impl Colors {
pub fn new(theme: Theme) -> Self {
let colors = match theme {
Theme::NoColor => None,
Theme::Default => Some(Self::get_light_theme_colour_map()),
Theme::NoLscolors => Some(Self::get_light_theme_colour_map()),
};
let lscolors = match theme {
Theme::NoColor => None,
Theme::Default => LsColors::from_env(),
Theme::NoLscolors => None,
};
Self { colors, lscolors }
}
pub fn colorize<'a>(&self, input: String, elem: &Elem) -> ColoredString<'a> {
self.style(elem).paint(input)
}
pub fn colorize_using_path<'a>(
&self,
input: String,
path: &str,
elem: &Elem,
) -> ColoredString<'a> {
let style_from_path = self.style_from_path(path);
match style_from_path {
Some(style_from_path) => style_from_path.paint(input),
None => self.colorize(input, elem),
}
}
fn style_from_path(&self, path: &str) -> Option<Style> {
match &self.lscolors {
Some(lscolors) => lscolors
.style_for_path(path)
.map(lscolors::Style::to_ansi_term_style),
None => None,
}
}
fn style(&self, elem: &Elem) -> Style {
match &self.lscolors {
Some(lscolors) => match self.get_indicator_from_elem(elem) {
Some(style) => {
let style = lscolors.style_for_indicator(style);
style
.map(lscolors::Style::to_ansi_term_style)
.unwrap_or_default()
}
None => self.style_default(elem),
},
None => self.style_default(elem),
}
}
fn style_default(&self, elem: &Elem) -> Style {
if let Some(ref colors) = self.colors {
let style_fg = Style::default().fg(colors[elem]);
if elem.has_suid() {
style_fg.on(Colour::Fixed(124)) // Red3
} else {
style_fg
}
} else {
Style::default()
}
}
fn get_indicator_from_elem(&self, elem: &Elem) -> Option<Indicator> {
let indicator_string = match elem {
Elem::File { exec, uid } => match (exec, uid) {
(_, true) => None,
(true, false) => Some("ex"),
(false, false) => Some("fi"),
},
Elem::Dir { uid } => {
if *uid {
None
} else {
Some("di")
}
}
Elem::SymLink => Some("ln"),
Elem::Pipe => Some("pi"),
Elem::Socket => Some("so"),
Elem::BlockDevice => Some("bd"),
Elem::CharDevice => Some("cd"),
Elem::BrokenSymLink => Some("or"),
_ => None,
};
match indicator_string {
Some(ids) => Indicator::from(ids),
None => None,
}
}
// You can find the table for each color, code, and display at:
//
//https://jonasjacek.github.io/colors/
fn get_light_theme_colour_map() -> HashMap<Elem, Colour> {
let mut m = HashMap::new();
// User / Group
m.insert(Elem::User, Colour::Fixed(230)); // Cornsilk1
m.insert(Elem::Group, Colour::Fixed(187)); // LightYellow3
// Permissions
m.insert(Elem::Read, Colour::Green);
m.insert(Elem::Write, Colour::Yellow);
m.insert(Elem::Exec, Colour::Red);
m.insert(Elem::ExecSticky, Colour::Purple);
m.insert(Elem::NoAccess, Colour::Fixed(245)); // Grey
// File Types
m.insert(
Elem::File {
exec: false,
uid: false,
},
Colour::Fixed(184),
); // Yellow3
m.insert(
Elem::File {
exec: false,
uid: true,
},
Colour::Fixed(184),
); // Yellow3
m.insert(
Elem::File {
exec: true,
uid: false,
},
Colour::Fixed(40),
); // Green3
m.insert(
Elem::File {
exec: true,
uid: true,
},
Colour::Fixed(40),
); // Green3
m.insert(Elem::Dir { uid: true }, Colour::Fixed(33)); // DodgerBlue1
m.insert(Elem::Dir { uid: false }, Colour::Fixed(33)); // DodgerBlue1
m.insert(Elem::Pipe, Colour::Fixed(44)); // DarkTurquoise
m.insert(Elem::SymLink, Colour::Fixed(44)); // DarkTurquoise
m.insert(Elem::BrokenSymLink, Colour::Fixed(124)); // Red3
m.insert(Elem::BlockDevice, Colour::Fixed(44)); // DarkTurquoise
m.insert(Elem::CharDevice, Colour::Fixed(172)); // Orange3
m.insert(Elem::Socket, Colour::Fixed(44)); // DarkTurquoise
m.insert(Elem::Special, Colour::Fixed(44)); // DarkTurquoise
// Last Time Modified
m.insert(Elem::HourOld, Colour::Fixed(40)); // Green3
m.insert(Elem::DayOld, Colour::Fixed(42)); // SpringGreen2
m.insert(Elem::Older, Colour::Fixed(36)); // DarkCyan
// Last Time Modified
m.insert(Elem::NonFile, Colour::Fixed(245)); // Grey
m.insert(Elem::FileSmall, Colour::Fixed(229)); // Wheat1
m.insert(Elem::FileMedium, Colour::Fixed(216)); // LightSalmon1
m.insert(Elem::FileLarge, Colour::Fixed(172)); // Orange3
m
}
}
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