cli_grrs_rust_sample 0.1.0

A tool to search files
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

use clap::Parser;
use anyhow::{Context, Result};

/// Search for a pattern in a file and display the lines that contain it.
#[derive(Parser)]
struct Cli {
    /// The pattern to look for
    pattern: String,
    /// The path to the file to read
    path: std::path::PathBuf
}

fn main() -> Result<()> {
    let args = Cli::parse();

    let content = std::fs::read_to_string(&args.path).with_context(|| format!("could not read file '{}'", args.path.display()))?;

    
    cli_grrs_rust_sample::find_matches(&content, &args.pattern, &mut std::io::stdout());
    Ok(())
}

#[test]
fn find_a_match() {
    let mut result = Vec::new();
    cli_grrs_rust_sample::find_matches("lorem ipsum\ndolor sit amet", "lorem", &mut result);
    assert_eq!(result, b"lorem ipsum\n");
}