zip-rs-wasm/examples/extract.rs
2017-10-28 10:51:46 +08:00

75 lines
2.1 KiB
Rust

extern crate zip;
use std::io;
use std::fs;
fn main() {
std::process::exit(real_main());
}
fn real_main() -> i32 {
let args: Vec<_> = std::env::args().collect();
if args.len() < 2 {
println!("Usage: {} <filename>", args[0]);
return 1;
}
let fname = std::path::Path::new(&*args[1]);
let file = fs::File::open(&fname).unwrap();
let mut archive = zip::ZipArchive::new(file).unwrap();
for i in 0..archive.len() {
let mut file = archive.by_index(i).unwrap();
let outpath = sanitize_filename(file.name());
{
let comment = file.comment();
if !comment.is_empty() {
println!("${} comment: {}", i, comment);
}
}
if (&*file.name()).ends_with('/') {
println!("${}-> {}", i, outpath.as_path().display());
fs::create_dir_all(&outpath).unwrap();
} else {
println!("${}-> {}: {}", i, outpath.as_path().display(), file.size());
if let Some(p) = outpath.parent() {
if !p.exists() {
fs::create_dir_all(&p).unwrap();
}
}
let mut outfile = fs::File::create(&outpath).unwrap();
io::copy(&mut file, &mut outfile).unwrap();
}
// Get and Set permissions
#[cfg(unix)]
{
use std::os::unix::fs::PermissionsExt;
if let Some(mode) = file.unix_mode() {
fs::set_permissions(&outpath, fs::Permissions::from_mode(mode)).unwrap();
}
}
}
return 0;
}
fn sanitize_filename(filename: &str) -> std::path::PathBuf {
let no_null_filename = match filename.find('\0') {
Some(index) => &filename[0..index],
None => filename,
};
std::path::Path::new(no_null_filename)
.components()
.filter(|component| match *component {
std::path::Component::Normal(..) => true,
_ => false,
})
.fold(std::path::PathBuf::new(), |mut path, ref cur| {
path.push(cur.as_os_str());
path
})
}