# rgon - A simple Rust-based grep clone
`rgon` is a command-line tool written in Rust that searches for a query string within a file, similar to the `grep` command in Unix-like systems. It supports case-insensitive searching if an environment variable is set.
## Features
- Search for a query string in a text file.
- Case-insensitive search if the `IGNORE_CASE` environment variable is set.
- Prints matching lines from the file.
## Installation
To use `rgon`, you'll need to have Rust and Cargo installed. If you don't have them, you can install them from [https://rust-lang.org](https://rust-lang.org).
To install and run `rgon`, clone the repository and build the project:
```bash
git clone https://github.com/jmeq17/rgon.git
cd rgon
cargo build --release
```
## Usage
Once installed, you can use `rgon` by running the following command:
```bash
cargo run -- [OPTIONS] <query> <file_path>
```
### Example
```bash
cargo run -- "to" "assets/tinyTale.txt"
```
This will search for the string `"to"` in the file `assets/tinyTale.txt` and print all matching lines.
### Case-Insensitive Search
To perform a case-insensitive search, set the `IGNORE_CASE` environment variable:
```bash
cargo run -- -i "To" "assets/tinyTale.txt"
```
This will match both `"To"` and `"to"` in the file.
## OPTIONS
- `-i` or `--ignore-case`：ignore case sensitivity.
## Tests
To run the tests:
```bash
cargo test
```
This will run the unit tests for `search` and `search_case_insensitive` functions.
## License
This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.