24 lines
853 B
Rust
24 lines
853 B
Rust
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use flate2::bufread;
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use std::env::args;
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use std::fs::File;
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use std::io::copy;
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use std::io::BufReader;
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use std::time::Instant;
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fn main() {
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// E.g. `cargo run --example decompress_file examples/hello_world.txt.gz hello_world.txt`
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if args().len() != 3 {
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eprintln!("Usage: ./decompress_file `source` `target`");
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return;
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}
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let input = BufReader::new(File::open(args().nth(1).unwrap()).unwrap());
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let mut output = File::create(args().nth(2).unwrap()).unwrap();
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let source_len = input.get_ref().metadata().unwrap().len();
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let start = Instant::now();
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let mut decoder = bufread::GzDecoder::new(input);
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copy(&mut decoder, &mut output).unwrap();
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println!("Source len: {:?}", source_len);
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println!("Target len: {:?}", output.metadata().unwrap().len());
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println!("Elapsed: {:?}", start.elapsed());
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}
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