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https://github.com/orf/dirscan
A high performance tool for summarizing large directories or drives
https://github.com/orf/dirscan
Last synced: 18 days ago
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A high performance tool for summarizing large directories or drives
- Host: GitHub
- URL: https://github.com/orf/dirscan
- Owner: orf
- License: mit
- Created: 2020-04-03T14:21:34.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2022-09-06T09:43:38.000Z (over 2 years ago)
- Last Synced: 2024-11-17T18:04:19.502Z (26 days ago)
- Language: Rust
- Homepage:
- Size: 2.33 MB
- Stars: 144
- Watchers: 2
- Forks: 5
- Open Issues: 4
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-starred - orf/dirscan - A high performance tool for summarizing large directories or drives (others)
README
# Dirscan [](https://crates.io/crates/dirscan) [](https://github.com/orf/dirscan/actions)
Dirscan is a high-performance tool for quickly inspecting the contents of huge (possibly networked) disks. It provides
a summary of every single directory on a given disk, complete with the number of files within, their total size, and the
latest time a file was created, accessed or modified.
It's designed for disks that are too large to inspect with traditional tools, and it:
* Is many orders of magnitudes faster than tools like `du`, `find` or `tree`
* Can max out any disk you give it, assuming you have enough CPU resources to keep up.
* Produces a simple JSON or CSV output that can be analysed by the built in viewer or other tools
* Supports a customisable number of threads
* Streams results to the output file, keeping relatively constant memory usage with any sized disk.
Table of Contents
=================
* [Install :cd:](#install-cd)
* [Homebrew (MacOS Linux)](#homebrew-macos--linux)
* [Binaries (Windows)](#binaries-windows)
* [Cargo](#cargo)
* [Docker](#docker)
* [Usage :saxophone:](#usage-saxophone)
* [Scan a directory](#scan-a-directory)
* [Inspect results](#inspect-results)
# Install :cd:
## Homebrew (MacOS + Linux)
`brew tap orf/brew`, then `brew install dirscan`
## Binaries (Windows)
Download the latest release from [the github releases page](https://github.com/orf/dirscan/releases). Extract it
and move it to a directory on your `PATH`.
## Cargo
For optimal performance run `cargo install dirscan`
## Docker
This project is packaged as a Docker container [as tomforbes/dirscan](https://hub.docker.com/r/tomforbes/dirscan).
Running `docker run -vYOUR_DIRECTORY:/dir tomforbes/dirscan scan /dir` will scan `YOUR_DIRECTORY`.
# Usage :saxophone:
## Scan a directory
You can start scanning a directory by executing:
`dirscan scan [PATH] --output=[OUTPUT]`
This will scan `[PATH]` and output all results, in JSON format, to `[OUTPUT]`. By default it will use a thread pool with
`2 * number_of_cores` threads, but you can customize this. Depending on your disk speed the number of threads can
drastically improve performance:
`dirscan scan [PATH] --output=[OUTPUT] --threads=20`
You can also output the results in CSV:
`dirscan scan [PATH] --output=[OUTPUT] --format=csv`
```
$ dirscan scan ~/ --output=output.json --threads=20
[00:00:15] Files/s: 17324/s | Total: 258734 | Size: 99.01GB | Components: 14291 | Errors: IO=0 Other=36
```
## Stream results
You can stream all files to stdout by executing:
`dirscan stream [PATH]`
If you wanted to remove all files in a disk in parallel, you could create a pipeline like:
`dirscan stream /my-dir | xargs -d ‘\n’ -L10 -P500`
This would launch up to 500 `rm` processes, each deleting 10 files.
## Inspect results
Once a scan is complete you can inspect the output using:
`dirscan parse [OUTPUT]`
For example:
```
$ dirscan parse output.json --prefix=/System/
[00:00:02] Total: 580000 | Per sec: 220653/s
+----------------------+---------+----------+-------------+-------------+-------------+
| Prefix | Files | Size | created | accessed | modified |
+----------------------+---------+----------+-------------+-------------+-------------+
| /System/Applications | 57304 | 777.28MB | 2 weeks ago | 2 weeks ago | 2 weeks ago |
| /System/DriverKit | 55 | 5.09MB | 2 weeks ago | 2 weeks ago | 2 weeks ago |
| /System/Library | 292190 | 13.56GB | 7 hours ago | 1 hour ago | 7 hours ago |
| /System/Volumes | 1468296 | 197.93GB | 1 hour ago | 1 hour ago | 1 hour ago |
| /System/iOSSupport | 13856 | 600.20MB | 2 weeks ago | 2 weeks ago | 2 weeks ago |
+----------------------+---------+----------+-------------+-------------+-------------+
```
You can include more directories with the `--depth` flag, or change the prefix search with `--prefix`.
You can also order the results by `name` (the default), `size` or `files`:
```
$ dirscan parse output.json --prefix=/System/ --sort=size
[00:00:02] Total: 580000 | Per sec: 220653/s
+----------------------+---------+----------+-------------+-------------+-------------+
| Prefix | Files | Size | created | accessed | modified |
+----------------------+---------+----------+-------------+-------------+-------------+
| /System/Volumes | 1468296 | 197.93GB | 2 hours ago | 2 hours ago | 2 hours ago |
| /System/Library | 292190 | 13.56GB | 7 hours ago | 2 hours ago | 7 hours ago |
| /System/Applications | 57304 | 777.28MB | 2 weeks ago | 2 weeks ago | 2 weeks ago |
| /System/iOSSupport | 13856 | 600.20MB | 2 weeks ago | 2 weeks ago | 2 weeks ago |
| /System/DriverKit | 55 | 5.09MB | 2 weeks ago | 2 weeks ago | 2 weeks ago |
+----------------------+---------+----------+-------------+-------------+-------------+
```