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use clap::Clap;
use dua::ByteFormat as LibraryByteFormat;
use std::path::PathBuf;
use std::str::FromStr;
#[derive(PartialEq, Debug)]
pub enum ByteFormat {
Metric,
Binary,
Bytes,
GB,
GiB,
MB,
MiB,
}
impl FromStr for ByteFormat {
type Err = String;
fn from_str(s: &str) -> Result<Self, Self::Err> {
Ok(match s {
"metric" | "Metric" => ByteFormat::Metric,
"binary" | "Binary" => ByteFormat::Binary,
"bytes" | "Bytes" => ByteFormat::Bytes,
"GB" | "Gb" | "gb" => ByteFormat::GB,
"GiB" | "gib" => ByteFormat::GiB,
"MB" | "Mb" | "mb" => ByteFormat::MB,
"MiB" | "mib" => ByteFormat::MiB,
_ => return Err(format!("Invalid byte format: {:?}", s)),
})
}
}
impl ByteFormat {
const VARIANTS: &'static [&'static str] =
&["metric", "binary", "bytes", "MB", "MiB", "GB", "GiB"];
}
impl From<ByteFormat> for LibraryByteFormat {
fn from(input: ByteFormat) -> Self {
match input {
ByteFormat::Metric => LibraryByteFormat::Metric,
ByteFormat::Binary => LibraryByteFormat::Binary,
ByteFormat::Bytes => LibraryByteFormat::Bytes,
ByteFormat::GB => LibraryByteFormat::GB,
ByteFormat::GiB => LibraryByteFormat::GiB,
ByteFormat::MB => LibraryByteFormat::MB,
ByteFormat::MiB => LibraryByteFormat::MiB,
}
}
}
#[derive(Debug, Clap)]
#[clap(name = "dua", about = "A tool to learn about disk usage, fast!")]
#[clap(setting = clap::AppSettings::ColoredHelp)]
#[clap(override_usage = "dua [FLAGS] [OPTIONS] [SUBCOMMAND] [input]...")]
pub struct Args {
#[clap(subcommand)]
pub command: Option<Command>,
/// The amount of threads to use. Defaults to the amount of logical processors.
/// Set to 1 to use only a single thread.
#[clap(short = 't', long = "threads")]
pub threads: Option<usize>,
/// The format with which to print byte counts.
/// Metric - uses 1000 as base (default)
/// Binary - uses 1024 as base
/// Bytes - plain bytes without any formatting
/// GB - only gigabytes
/// GiB - only gibibytes
/// MB - only megabytes
/// MiB - only mebibytes
#[clap(short = 'f', long, case_insensitive = true, possible_values(&ByteFormat::VARIANTS))]
pub format: Option<ByteFormat>,
/// Display apparent size instead of disk usage.
#[clap(short = 'A', long)]
pub apparent_size: bool,
/// Count hard-linked files each time they are seen
#[clap(short = 'l', long)]
pub count_hard_links: bool,
/// If set, we will not cross filesystems or traverse mount points
#[clap(short = 'x', long)]
pub stay_on_filesystem: bool,
/// One or more input files or directories. If unset, we will use all entries in the current working directory.
#[clap(parse(from_os_str))]
pub input: Vec<PathBuf>,
}
#[derive(Debug, Clap)]
pub enum Command {
/// Launch the terminal user interface
#[cfg(any(feature = "tui-unix", feature = "tui-crossplatform"))]
#[clap(name = "interactive", visible_alias = "i")]
Interactive {
/// One or more input files or directories. If unset, we will use all entries in the current working directory.
#[clap(parse(from_os_str))]
input: Vec<PathBuf>,
},
/// Aggregrate the consumed space of one or more directories or files
#[clap(name = "aggregate", visible_alias = "a")]
Aggregate {
/// If set, print additional statistics about the file traversal to stderr
#[clap(long = "stats")]
statistics: bool,
/// If set, paths will be printed in their order of occurrence on the command-line.
/// Otherwise they are sorted by their size in bytes, ascending.
#[clap(long)]
no_sort: bool,
/// If set, no total column will be computed for multiple inputs
#[clap(long)]
no_total: bool,
/// One or more input files or directories. If unset, we will use all entries in the current working directory.
#[clap(parse(from_os_str))]
input: Vec<PathBuf>,
},
}
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