zola/src/console.rs
2018-11-01 19:59:02 -05:00

112 lines
3.3 KiB
Rust

use std::env;
use std::io::Write;
use std::time::Instant;
use atty;
use chrono::Duration;
use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
use errors::Error;
use site::Site;
lazy_static! {
/// Termcolor color choice.
/// We do not rely on ColorChoice::Auto behavior
/// as the check is already performed by has_color.
static ref COLOR_CHOICE: ColorChoice =
if has_color() {
ColorChoice::Always
} else {
ColorChoice::Never
};
}
pub fn info(message: &str) {
colorize(message, ColorSpec::new().set_bold(true));
}
pub fn warn(message: &str) {
colorize(message, ColorSpec::new().set_bold(true).set_fg(Some(Color::Yellow)));
}
pub fn success(message: &str) {
colorize(message, ColorSpec::new().set_bold(true).set_fg(Some(Color::Green)));
}
pub fn error(message: &str) {
colorize(message, ColorSpec::new().set_bold(true).set_fg(Some(Color::Red)));
}
/// Print a colorized message to stdout
fn colorize(message: &str, color: &ColorSpec) {
let mut stdout = StandardStream::stdout(*COLOR_CHOICE);
stdout.set_color(color).unwrap();
writeln!(&mut stdout, "{}", message).unwrap();
stdout.set_color(&ColorSpec::new()).unwrap();
}
/// Display in the console the number of pages/sections in the site
pub fn notify_site_size(site: &Site) {
println!(
"-> Creating {} pages ({} orphan), {} sections, and processing {} images",
site.library.pages().len(),
site.get_all_orphan_pages().len(),
site.library.sections().len() - 1, // -1 since we do not the index as a section
site.num_img_ops(),
);
}
/// Display a warning in the console if there are ignored pages in the site
pub fn warn_about_ignored_pages(site: &Site) {
let ignored_pages: Vec<_> = site
.library
.sections_values()
.iter()
.flat_map(|s| {
s.ignored_pages.iter().map(|k| site.library.get_page_by_key(*k).file.path.clone())
})
.collect();
if !ignored_pages.is_empty() {
warn(&format!(
"{} page(s) ignored (missing date or weight in a sorted section):",
ignored_pages.len()
));
for path in ignored_pages {
warn(&format!("- {}", path.display()));
}
}
}
/// Print the time elapsed rounded to 1 decimal
pub fn report_elapsed_time(instant: Instant) {
let duration_ms = Duration::from_std(instant.elapsed()).unwrap().num_milliseconds() as f64;
if duration_ms < 1000.0 {
success(&format!("Done in {}ms.\n", duration_ms));
} else {
let duration_sec = duration_ms / 1000.0;
success(&format!("Done in {:.1}s.\n", ((duration_sec * 10.0).round() / 10.0)));
}
}
/// Display an error message and the actual error(s)
pub fn unravel_errors(message: &str, error: &Error) {
if !message.is_empty() {
self::error(message);
}
self::error(&format!("Error: {}", error));
for e in error.iter().skip(1) {
self::error(&format!("Reason: {}", e));
}
}
/// Check whether to output colors
fn has_color() -> bool {
let use_colors = env::var("CLICOLOR").unwrap_or_else(|_| "1".to_string()) != "0"
&& env::var("NO_COLOR").is_err();
let force_colors = env::var("CLICOLOR_FORCE").unwrap_or_else(|_| "0".to_string()) != "0";
force_colors || use_colors && atty::is(atty::Stream::Stdout)
}