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About the developer

Byron
1.2K Stars 40 Forks MIT License 681 Commits 18 Opened issues

Description

View disk space usage and delete unwanted data, fast.

Services available

!
?

Need anything else?

Contributors list

Rust Crates.io Packaging status

dua (-> Disk Usage Analyzer) is a tool to conveniently learn about the usage of disk space of a given directory. It's parallel by default and will max out your SSD, providing relevant information as fast as possible. Optionally delete superfluous data, and do so more quickly than

rm
.

asciicast

Installation

Binary Release (all but Windows)

MacOS

curl -LSfs https://raw.githubusercontent.com/byron/dua-cli/master/ci/install.sh | \
    sh -s -- --git byron/dua-cli --crate dua

MacOS via MacPorts:

sudo port selfupdate
sudo port install dua-cli

MacOS via Homebrew

brew update
brew install dua-cli

Linux

Linux requires the target to be specified explicitly to obtain the MUSL build.

curl -LSfs https://raw.githubusercontent.com/byron/dua-cli/master/ci/install.sh | \
    sh -s -- --git byron/dua-cli --target x86_64-unknown-linux-musl --crate dua

Windows and others

See the releases section for manual installation.

Cargo

Via

cargo
, which can be obtained using rustup

For Unix… ``` cargo install dua-cli

And if you don't need a terminal user interface

cargo install dua-cli --no-default-features ```

For Windows, nightly features are currently required.

cargo +nightly install dua-cli

VoidLinux

Via

xbps
on your VoidLinux system.
xbps-install dua-cli

Fedora

Via

dnf
on your Fedora system.
sudo dnf install dua-cli

Arch Linux

Via

pacman
on your ArchLinux system.
sudo pacman -S dua-cli

NetBSD

Via

pkgin
on your NetBSD system.
pkgin install dua-cli

Or, building from source

cd /usr/pkgsrc/sysutils/dua-cli
make install

Windows

You will find pre-built binaries for Windows in the releases section. Alternatively, install via cargo as in

cargo +nightly install dua-cli

Usage

# count the space used in the current working directory
dua
# count the space used in all directories that are not hidden
dua *
# learn about additional functionality
dua aggregate --help

Interactive Mode

Launch into interactive mode with the

i
or
interactive
subcommand. Get help on keyboard shortcuts with
?
. Use this mode to explore, and/or to delete files and directories to release disk space.

Please note that great care has been taken to prevent accidential deletions due to a multi-stage process, which makes this mode viable for exploration.

dua i
dua interactive

Development

Please note that all the following assumes a unix system. On Windows, the linux subsystem should do the job.

Run tests

make tests

Learn about other targets

make

But why is…

…there two available backends?
crossterm
works everywhere!

Why add complexity to support

termion
if
crossterm
works everywhere? The answer is compile time and binary size, which both are larger when using
crossterm
. Thus on Unix we still build with
termion
, but there is no reason to stop supporting it once
crossterm
has no disadvantages.

The

crosstermion
crate makes handling this a bit less cumbersome.

Acknowledgements

Thanks to jwalk, all there was left to do is to write a command-line interface. As

jwalk
matures, dua should benefit instantly.

Limitations

  • Does not show symbolic links at all if no path is provided when invoking
    dua
    • in an effort to skip symbolic links, for now there are pruned and are not used as a root. Symbolic links will be shown if they are not a traversal root, but will not be followed.
  • Interactive mode only looks good in dark terminals (see this issue)
  • easy fix: file names in main window are not truncated if too large. They are cut off on the right.
  • There are plenty of examples in
    tests/fixtures
    which don't render correctly in interactive mode. This can be due to graphemes not interpreted correctly. With Chinese characters for instance, column sizes are not correctly computed, leading to certain columns not being shown. In other cases, the terminal gets things wrong - I use alacritty, and with certain characaters it performs worse than, say iTerm3. See https://github.com/minimaxir/big-list-of-naughty-strings/blob/master/blns.txt for the source.
  • In interactive mode, you will need about 60MB of memory for 1 million entries in the graph.
  • In interactive mode, the maximum amount of files is limited to 2^32 - 1 (
    u32::max_value() - 1
    ) entries.
    • One node is used as to 'virtual' root
    • The actual amount of nodes stored might be lower, as there might be more edges than nodes, which are also limited by a
      u32
      (I guess)
    • The limitation is imposed by the underlying
      petgraph
      crate, which declares it as
      unsafe
      to use u64 for instance.
    • It's possibly UB when that limit is reached, however, it was never observed either.

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