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#![cfg_attr(windows, feature(windows_by_handle))]
#![warn(
clippy::all,
clippy::cargo,
clippy::complexity,
clippy::correctness,
clippy::nursery,
clippy::pedantic,
clippy::perf,
clippy::style,
clippy::suspicious
)]
#![allow(
clippy::cast_possible_truncation,
clippy::cast_precision_loss,
clippy::cast_sign_loss,
clippy::let_underscore_untyped,
clippy::struct_excessive_bools,
clippy::too_many_arguments
)]
use clap::CommandFactory;
use context::{layout, Context};
use progress::Message;
use render::{Engine, Flat, Inverted, Regular};
use std::{error::Error, io::stdout, process::ExitCode};
use tree::Tree;
/// Operations to wrangle ANSI escaped strings.
mod ansi;
/// CLI rules and definitions as well as context to be injected throughout the entire program.
mod context;
/// Operations relevant to the computation and presentation of disk usage.
mod disk_usage;
/// Filesystem operations.
mod fs;
/// All things related to icons on how to map certain files to the appropriate icons.
mod icons;
/// Concerned with displaying a progress indicator when stdout is a tty.
mod progress;
/// Concerned with taking an initialized [`Tree`] and its [`Node`]s and rendering the output.
///
/// [`Tree`]: tree::Tree
/// [`Node`]: tree::node::Node
mod render;
/// Global used throughout the program to paint the output.
mod styles;
/// Houses the primary data structures that are used to virtualize the filesystem, containing also
/// information on how the tree output should be ultimately rendered.
mod tree;
/// Utilities relating to interacting with tty properties.
mod tty;
/// Common utilities across all modules.
mod utils;
fn main() -> ExitCode {
if let Err(e) = run() {
eprintln!("{e}");
return ExitCode::FAILURE;
}
ExitCode::SUCCESS
}
fn run() -> Result<(), Box<dyn Error>> {
let ctx = Context::try_init()?;
if let Some(shell) = ctx.completions {
clap_complete::generate(shell, &mut Context::command(), "erd", &mut stdout());
return Ok(());
}
context::color::no_color_env();
styles::init(ctx.no_color());
let indicator = (ctx.stdout_is_tty && !ctx.no_progress).then(progress::Indicator::measure);
let (tree, ctx) =
Tree::try_init_and_update_context(ctx, indicator.as_ref()).map_err(|err| {
if let Some(ref progress) = indicator {
progress.mailbox().send(Message::RenderReady).unwrap();
}
err
})?;
let output = match ctx.layout {
layout::Type::Flat => {
let render = Engine::<Flat>::new(tree, ctx);
format!("{render}")
}
layout::Type::Inverted => {
let render = Engine::<Inverted>::new(tree, ctx);
format!("{render}")
}
layout::Type::Regular => {
let render = Engine::<Regular>::new(tree, ctx);
format!("{render}")
}
};
if let Some(progress) = indicator {
progress.mailbox().send(Message::RenderReady)?;
progress.join_handle.join().unwrap()?;
}
println!("{output}");
Ok(())
}
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