dranke/upkr
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add compression levels

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This commit is contained in:
Dennis Ranke
2021-11-26 00:01:33 +01:00
parent 5fedc032a9
commit c0560f99a8
3 changed files with 184 additions and 33 deletions
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12
src/main.rs
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@@ -8,20 +8,21 @@ fn main() -> Result<()> {
match args.subcommand()?.as_ref().map(|s| s.as_str()) {
None => print_help(),
Some("pack") => {
let fast = args.contains("--fast");
let level = args.opt_value_from_str(["-l", "--level"])?.unwrap_or(2u8);
let infile = args.free_from_os_str::<PathBuf, bool>(|s| Ok(s.into()))?;
let outfile = args.free_from_os_str::<PathBuf, bool>(|s| Ok(s.into()))?;
let mut data = vec![];
File::open(infile)?.read_to_end(&mut data)?;
let packed_data = if fast {
let packed_data = if level == 0 {
upkr::pack_fast(&data)
} else {
let mut pb = pbr::ProgressBar::new(data.len() as u64);
pb.set_units(pbr::Units::Bytes);
let packed_data = upkr::pack(
&data,
level,
Some(&mut |pos| {
pb.set(pos as u64);
}),
@@ -29,7 +30,12 @@ fn main() -> Result<()> {
pb.finish();
packed_data
};
println!("Compressed {} bytes to {} bytes ({}%)", data.len(), packed_data.len(), packed_data.len() as f32 * 100. / data.len() as f32);
println!(
"Compressed {} bytes to {} bytes ({}%)",
data.len(),
packed_data.len(),
packed_data.len() as f32 * 100. / data.len() as f32
);
File::create(outfile)?.write_all(&packed_data)?;
}
Some("unpack") => {