# 🍺 [Run] —
`Run` is a command-line tool that executes commands in multiple directories
concurrently.
[Run]: HTTPS://crates.io/crates/prun
## Bench
<table>
<tr>
<th>Command:</th>
<th>Time:</th>
</tr>
<tr>
<td>
<pre>find -iname .git -execdir ls \;</pre>
</td>
<td>
<pre>real 0m17.340s
user 0m6.214s
sys 0m9.138s</pre>
</td>
</tr>
<tr>
<td>
<pre>Run -P .git -C ls</pre>
</td>
<td>
<pre>real 0m8.480s
user 0m0.046s
sys 0m0.046s</pre>
</td>
</tr>
<tr>
<td>
<pre>find -iname .git -execdir git status \;</pre>
</td>
<td>
<pre>real 1m19.070s
user 0m5.385s
sys 0m7.357s</pre>
</td>
</tr>
<tr>
<td>
<pre>Run -P .git -C 'git status'</pre>
</td>
<td>
<pre>real 0m26.170s
user 0m0.030s
sys 0m0.046s</pre>
</td>
</tr>
</table>
## 🚀 Installation
```sh
cargo install prun
```
## 🛠️ Usage
`Run` can be used with various options:
```sh
🍺 Run —
Usage: Run [OPTIONS] --Command <COMMAND> <PATTERN>
Arguments:
<PATTERN> 🔍 Pattern — [default: .]
Options:
-F, --File 📝 File —
-P, --Parallel ⏩ Parallel —
-R, --Root <ROOT> 📂 Root — [default: .]
-E, --Exclude <EXCLUDE> 🚫 Exclude — [default: "node_modules .git target dist vendor"]
-C, --Command <COMMAND> 🖥️ Command —
-h, --help Print help
-V, --version Print version
```
```sh
Run .git -C 'git fetch upstream'
```
This command will fetch from upstream for all `.git` repositories inside the
current directory. It essentially replaces the following command:
```sh
find -iname .git -type d -execdir git fetch upstream \;
```
## Options
#### --Command or -C:
The command to execute:
```sh
Run .git -C 'git status'
```
or multiple commands:
```sh
Run .git -C 'git status' -C 'git add .' -C 'git commit'
```
#### --File or -F:
Limit execution to files matching a certain pattern:
```sh
Run -F astro.config.ts -C 'npx astro add @playform/compress'
```
#### --Root or -R:
Set the current working directory to a different folder (default is `.`):
```sh
Run -R D:\Developer .git -C 'git fetch upstream'
```
#### --Parallel or -P:
Run commands in `parallel` (default is `sequential`):
```sh
Run -P -R D:\Developer .git -C 'git fetch upstream'
```
#### --Exclude:
Exclude certain files or directories (defailt is
`node_modules .git target dist vendor`)
#### --Pattern:
Specify a custom pattern for matching
## Dependencies
`Run` relies on several Rust crates to provide its functionality:
- [clap](https://crates.io/crates/clap) (v4.5.17) - A powerful and flexible
command-line argument parser. The "derive" feature is used to simplify the
creation of command-line interfaces through derive macros.
- [walkdir](https://crates.io/crates/walkdir) (v2.5.0) - Provides an efficient
and cross-platform way to recursively traverse directories. This is useful
for filesystem operations and searching.
- [futures](https://crates.io/crates/futures) (v0.3.30) - Offers abstractions
for asynchronous programming in Rust. It's used in conjunction with tokio to
handle asynchronous operations effectively.
- [rayon](https://crates.io/crates/rayon) (v1.10.0) - Enables easy parallelism
for data-parallel tasks. It's used to parallelize CPU-bound operations,
improving performance on multi-core systems.
- [tokio](https://crates.io/crates/tokio) (v1.40.0) - An asynchronous runtime
for Rust, providing essential building blocks for writing reliable
asynchronous applications. The "full" feature set is used to enable all
tokio functionality.
- [num_cpus](https://crates.io/crates/num_cpus) (v1.16.0) - A small crate that
determines the number of CPUs on the current system. This is useful for
optimizing parallel workloads.
- [once_cell](https://crates.io/crates/once_cell) (v1.19.0) - Provides a way
to perform lazy static initialization. It's often used for global variables
or singletons that need to be initialized only once.
These dependencies work together to provide a robust, efficient, and
user-friendly command-line tool capable of handling parallel and asynchronous
operations while efficiently traversing filesystems.
[Run]: HTTPS://crates.io/crates/prun
## Changelog
See [CHANGELOG.md](CHANGELOG.md) for a history of changes to this CLI.