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|
#![forbid(unsafe_code, rust_2018_idioms, unsafe_code)]
use anyhow::Result;
use clap::Parser;
use dua::{canonicalize_ignore_dirs, TraversalSorting};
use log::info;
use simplelog::{Config, LevelFilter, WriteLogger};
use std::fs::OpenOptions;
use std::{fs, io, io::Write, path::PathBuf, process};
#[cfg(feature = "tui-crossplatform")]
use crate::interactive::input::input_channel;
#[cfg(feature = "tui-crossplatform")]
use crate::interactive::terminal::TerminalApp;
mod crossdev;
#[cfg(feature = "tui-crossplatform")]
mod interactive;
mod options;
fn stderr_if_tty() -> Option<io::Stderr> {
if atty::is(atty::Stream::Stderr) {
Some(io::stderr())
} else {
None
}
}
fn main() -> Result<()> {
use options::Command::*;
let opt: options::Args = options::Args::parse_from(wild::args_os());
if let Some(log_file) = &opt.log_file {
log_panics::init();
WriteLogger::init(
LevelFilter::Debug,
Config::default(),
OpenOptions::new()
.create(true)
.append(true)
.open(log_file)?,
)?;
info!("dua options={opt:#?}");
}
let byte_format: dua::ByteFormat = opt.format.into();
let mut walk_options = dua::WalkOptions {
threads: opt.threads,
apparent_size: opt.apparent_size,
count_hard_links: opt.count_hard_links,
sorting: TraversalSorting::None,
cross_filesystems: !opt.stay_on_filesystem,
ignore_dirs: canonicalize_ignore_dirs(&opt.ignore_dirs),
};
if walk_options.threads == 0 {
// avoid using the global rayon pool, as it will keep a lot of threads alive after we are done.
// Also means that we will spin up a bunch of threads per root path, instead of reusing them.
walk_options.threads = num_cpus::get();
}
let res = match opt.command {
#[cfg(feature = "tui-crossplatform")]
Some(Interactive {
no_entry_check,
input,
}) => {
use anyhow::{anyhow, Context};
use crosstermion::terminal::{tui::new_terminal, AlternateRawScreen};
let no_tty_msg = "Interactive mode requires a connected terminal";
if atty::isnt(atty::Stream::Stderr) {
return Err(anyhow!(no_tty_msg));
}
let mut terminal = new_terminal(
AlternateRawScreen::try_from(io::stderr()).with_context(|| no_tty_msg)?,
)
.with_context(|| "Could not instantiate terminal")?;
let keys_rx = input_channel();
let mut app = TerminalApp::initialize(
&mut terminal,
walk_options,
byte_format,
!no_entry_check,
extract_paths_maybe_set_cwd(input, !opt.stay_on_filesystem)?,
)?;
app.traverse()?;
let res = app.process_events(&mut terminal, keys_rx);
let res = res.map(|r| {
(
r,
app.window
.mark_pane
.take()
.map(|marked| marked.into_paths()),
)
});
// Leak app memory to avoid having to wait for the hashmap to deallocate,
// which causes a noticeable delay shortly before the the program exits anyway.
std::mem::forget(app);
drop(terminal);
io::stderr().flush().ok();
// Exit 'quickly' to avoid having to not have to deal with slightly different types in the other match branches
std::process::exit(
res.map(|(walk_result, paths)| {
if let Some(paths) = paths {
for path in paths {
println!("{}", path.display())
}
}
walk_result.to_exit_code()
})
.unwrap_or(0),
);
}
Some(Aggregate {
input,
no_total,
no_sort,
statistics,
}) => {
let stdout = io::stdout();
let stdout_locked = stdout.lock();
let (res, stats) = dua::aggregate(
stdout_locked,
stderr_if_tty(),
walk_options,
!no_total,
!no_sort,
byte_format,
extract_paths_maybe_set_cwd(input, !opt.stay_on_filesystem)?,
)?;
if statistics {
writeln!(io::stderr(), "{:?}", stats).ok();
}
res
}
None => {
let stdout = io::stdout();
let stdout_locked = stdout.lock();
dua::aggregate(
stdout_locked,
stderr_if_tty(),
walk_options,
true,
true,
byte_format,
extract_paths_maybe_set_cwd(opt.input, !opt.stay_on_filesystem)?,
)?
.0
}
};
process::exit(res.to_exit_code());
}
fn extract_paths_maybe_set_cwd(
mut paths: Vec<PathBuf>,
cross_filesystems: bool,
) -> Result<Vec<PathBuf>, io::Error> {
if paths.len() == 1 && paths[0].is_dir() {
std::env::set_current_dir(&paths[0])?;
paths.clear();
}
let device_id = std::env::current_dir()
.ok()
.and_then(|cwd| crossdev::init(&cwd).ok());
if paths.is_empty() {
cwd_dirlist().map(|paths| match device_id {
Some(device_id) if !cross_filesystems => paths
.into_iter()
.filter(|p| match p.metadata() {
Ok(meta) => crossdev::is_same_device(device_id, &meta),
Err(_) => true,
})
.collect(),
_ => paths,
})
} else {
Ok(paths)
}
}
fn cwd_dirlist() -> Result<Vec<PathBuf>, io::Error> {
let mut v: Vec<_> = fs::read_dir(".")?
.filter_map(|e| {
e.ok()
.and_then(|e| e.path().strip_prefix(".").ok().map(ToOwned::to_owned))
})
.filter(|p| {
if let Ok(meta) = p.symlink_metadata() {
if meta.file_type().is_symlink() {
return false;
}
};
true
})
.collect();
v.sort();
Ok(v)
}
|
