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use flate2::Compression;
use flate2::write::GzEncoder;
use std::fs::{self, File};
use std::path::{Path, MAIN_SEPARATOR};
use std::io::{self, Write};
use tar::Archive;
// todo: this is pretty involved. (re)factor this into its own crate
pub fn dir<W>(buf: W, path: &str) -> io::Result<()>
where W: Write
{
let archive = Archive::new(GzEncoder::new(buf, Compression::Best));
fn bundle<F>(dir: &Path, f: &F, bundle_dir: bool) -> io::Result<()>
where F: Fn(&Path) -> io::Result<()>
{
if try!(fs::metadata(dir)).is_dir() {
if bundle_dir {
try!(f(&dir));
}
for entry in try!(fs::read_dir(dir)) {
let entry = try!(entry);
if try!(fs::metadata(entry.path())).is_dir() {
try!(bundle(&entry.path(), f, true));
} else {
try!(f(&entry.path().as_path()));
}
}
}
Ok(())
}
{
let base_path = try!(Path::new(path).canonicalize());
// todo: don't unwrap
let mut base_path_str = base_path.to_str().unwrap().to_owned();
if let Some(last) = base_path_str.chars().last() {
if last != MAIN_SEPARATOR {
base_path_str.push(MAIN_SEPARATOR)
}
}
let append = |path: &Path| {
let canonical = try!(path.canonicalize());
// todo: don't unwrap
let relativized = canonical.to_str().unwrap().trim_left_matches(&base_path_str[..]);
if path.is_dir() {
try!(archive.append_dir(Path::new(relativized), &canonical))
} else {
try!(archive.append_file(Path::new(relativized), &mut try!(File::open(&canonical))))
}
Ok(())
};
try!(bundle(Path::new(path), &append, false));
try!(archive.finish());
}
Ok(())
}
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