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Cargo.lock

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Cargo.toml

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··· 12 12 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html 13 13 14 14 [dependencies] 15 15 + clap = { version = "4.2.1", features = ["derive"] } 16 16 + tar = "0.4.38" 17 17 +

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README.md

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··· 1 1 # cmprss 2 2 3 3 - (UNIMPLEMENTED) A compression tool for the CLI 3 3 + (UNIMPLEMENTED) A compression multi-tool for the CLI 4 4 + 5 5 + ## Supported formats 6 6 + 7 7 + - tar (compress only)

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src/main.rs

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··· 1 1 + mod tar; 2 2 + 3 3 + use clap::Parser; 4 4 + use std::path::Path; 5 5 + 6 6 + /// A compression multi-tool 7 7 + #[derive(Parser, Debug)] 8 8 + #[command(author, version, about, long_about = None)] 9 9 + struct Args { 10 10 + /// Input file 11 11 + #[arg(index = 1)] 12 12 + input: String, 13 13 + 14 14 + /// Output filename 15 15 + /// If it's not provided, the extension is inferred from the compression type. 16 16 + #[arg(index = 2)] 17 17 + output: Option<String>, 18 18 + } 19 19 + 1 20 fn main() { 2 2 - println!("Hello, world!"); 21 21 + let args = Args::parse(); 22 22 + let out = match args.output { 23 23 + Some(file) => file, 24 24 + None => { 25 25 + // Append tar to the base file name as a default. 26 26 + let p = Path::new(&args.input); 27 27 + format!("{}{}", p.file_name().unwrap().to_str().unwrap(), ".tar") 28 28 + } 29 29 + }; 30 30 + tar::compress(Path::new(&args.input), out); 3 31 }

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src/tar.rs

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··· 1 1 + extern crate tar; 2 2 + 3 3 + use std::fs::File; 4 4 + use std::path::Path; 5 5 + use tar::Builder; 6 6 + 7 7 + /// Compress an input file or directory into a tar archive. 8 8 + pub fn compress<P: AsRef<Path>>(in_file: &Path, out_file: P) { 9 9 + let mut archive = Builder::new(File::create(out_file).unwrap()); 10 10 + if in_file.is_file() { 11 11 + archive 12 12 + .append_file( 13 13 + in_file.file_name().unwrap(), 14 14 + &mut File::open(in_file).unwrap(), 15 15 + ) 16 16 + .unwrap(); 17 17 + } else if in_file.is_dir() { 18 18 + archive 19 19 + .append_dir_all(in_file.file_name().unwrap(), in_file) 20 20 + .unwrap(); 21 21 + } 22 22 + archive.finish().unwrap(); 23 23 + }