use {
super::*,
ansi_term::{ANSIGenericString, Color::*, Prefix, Style, Suffix},
atty::Stream,
};
#[derive(Copy, Clone, Debug, PartialEq)]
pub(crate) struct Color {
use_color: UseColor,
atty: bool,
style: Style,
}
impl Color {
fn restyle(self, style: Style) -> Self {
Self { style, ..self }
}
fn redirect(self, stream: Stream) -> Self {
Self {
atty: atty::is(stream),
..self
}
}
fn effective_style(&self) -> Style {
if self.active() {
self.style
} else {
Style::new()
}
}
pub(crate) fn auto() -> Self {
Self {
use_color: UseColor::Auto,
..Color::default()
}
}
pub(crate) fn always() -> Self {
Self {
use_color: UseColor::Always,
..Color::default()
}
}
pub(crate) fn never() -> Self {
Self {
use_color: UseColor::Never,
..Color::default()
}
}
pub(crate) fn stderr(self) -> Self {
self.redirect(Stream::Stderr)
}
pub(crate) fn stdout(self) -> Self {
self.redirect(Stream::Stdout)
}
pub(crate) fn doc(self) -> Self {
self.restyle(Style::new().fg(Blue))
}
pub(crate) fn error(self) -> Self {
self.restyle(Style::new().fg(Red).bold())
}
pub(crate) fn warning(self) -> Self {
self.restyle(Style::new().fg(Yellow).bold())
}
pub(crate) fn banner(self) -> Self {
self.restyle(Style::new().fg(Cyan).bold())
}
pub(crate) fn command(self) -> Self {
self.restyle(Style::new().bold())
}
pub(crate) fn parameter(self) -> Self {
self.restyle(Style::new().fg(Cyan))
}
pub(crate) fn message(self) -> Self {
self.restyle(Style::new().bold())
}
pub(crate) fn annotation(self) -> Self {
self.restyle(Style::new().fg(Purple))
}
pub(crate) fn string(self) -> Self {
self.restyle(Style::new().fg(Green))
}
pub(crate) fn diff_added(self) -> Self {
self.restyle(Style::new().fg(Green))
}
pub(crate) fn diff_deleted(self) -> Self {
self.restyle(Style::new().fg(Red))
}
pub(crate) fn active(&self) -> bool {
match self.use_color {
UseColor::Always => true,
UseColor::Never => false,
UseColor::Auto => self.atty,
}
}
pub(crate) fn paint<'a>(&self, text: &'a str) -> ANSIGenericString<'a, str> {
self.effective_style().paint(text)
}
pub(crate) fn prefix(&self) -> Prefix {
self.effective_style().prefix()
}
pub(crate) fn suffix(&self) -> Suffix {
self.effective_style().suffix()
}
}
impl Default for Color {
fn default() -> Self {
Self {
use_color: UseColor::Auto,
atty: false,
style: Style::new(),
}
}
}