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extern crate term;
use std::fmt;
use std::io::prelude::*;
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum Progress {
Section,
Headline,
Item,
Bottom,
}
impl Progress {
pub fn enter<D: fmt::Display>(self, name: D) -> Self {
let mut t = term::stderr().unwrap();
match self {
Progress::Section => {
t.fg(term::color::BLUE).unwrap();
t.attr(term::Attr::Bold).unwrap();
write!(t, ":: ").unwrap();
t.reset().unwrap();
t.attr(term::Attr::Bold).unwrap();
writeln!(t, "{}", name).unwrap();
t.reset().unwrap();
Progress::Headline
}
Progress::Headline => {
t.fg(term::color::GREEN).unwrap();
t.attr(term::Attr::Bold).unwrap();
write!(t, "==> ").unwrap();
t.reset().unwrap();
t.attr(term::Attr::Bold).unwrap();
writeln!(t, "{}", name).unwrap();
t.reset().unwrap();
Progress::Item
}
Progress::Item | Progress::Bottom => {
t.fg(term::color::BLUE).unwrap();
t.attr(term::Attr::Bold).unwrap();
write!(t, " -> ").unwrap();
t.reset().unwrap();
t.attr(term::Attr::Bold).unwrap();
writeln!(t, "{}", name).unwrap();
t.reset().unwrap();
Progress::Bottom
}
}
}
pub fn leave(self) -> Progress {
match self {
Progress::Bottom => Progress::Item,
Progress::Item => Progress::Headline,
Progress::Headline | Progress::Section => {
let mut t = term::stderr().unwrap();
writeln!(t, "").unwrap();
Progress::Section
}
}
}
pub fn root(mut self) -> Progress {
loop {
if let Progress::Section = self {
break self;
}
self = self.leave()
}
}
pub fn error<D: fmt::Display>(&self, msg: D) {
let mut t = term::stderr().unwrap();
match self {
Progress::Section => {
t.fg(term::color::RED).unwrap();
t.attr(term::Attr::Bold).unwrap();
writeln!(t, ":: ERROR: {}", msg).unwrap();
t.reset().unwrap();
}
Progress::Headline => {
t.fg(term::color::RED).unwrap();
t.attr(term::Attr::Bold).unwrap();
write!(t, "==> ERROR: ").unwrap();
t.reset().unwrap();
t.attr(term::Attr::Bold).unwrap();
writeln!(t, "{}", msg).unwrap();
t.reset().unwrap();
}
Progress::Item | Progress::Bottom => {
t.fg(term::color::RED).unwrap();
t.attr(term::Attr::Bold).unwrap();
writeln!(t, " -> {}", msg).unwrap();
t.reset().unwrap();
}
}
}
pub fn warn<D: fmt::Display>(&self, msg: D) {
let mut t = term::stderr().unwrap();
match self {
Progress::Section => {
t.fg(term::color::YELLOW).unwrap();
t.attr(term::Attr::Bold).unwrap();
writeln!(t, ":: WARN: {}", msg).unwrap();
t.reset().unwrap();
}
Progress::Headline => {
t.fg(term::color::YELLOW).unwrap();
t.attr(term::Attr::Bold).unwrap();
write!(t, "==> WARN: ").unwrap();
t.reset().unwrap();
t.attr(term::Attr::Bold).unwrap();
writeln!(t, "{}", msg).unwrap();
t.reset().unwrap();
}
Progress::Item | Progress::Bottom => {
t.fg(term::color::YELLOW).unwrap();
t.attr(term::Attr::Bold).unwrap();
writeln!(t, " -> {}", msg).unwrap();
t.reset().unwrap();
}
}
}
pub fn single<D: fmt::Display>(&self, name: D) {
self.clone().enter(name).leave();
}
}
pub fn start() -> Progress {
Progress::Section
}
#[cfg(test)]
mod tests {
#[test]
fn it_works() {
assert_eq!(2 + 2, 4);
}
}