1 files changed, 22 insertions, 1 deletions
diff --git a/src/util/tar.rs b/src/util/tar.rs
index 07ad795..885663e 100644
--- a/src/util/tar.rs
+++ b/src/util/tar.rs
@@ -1,11 +1,32 @@
 use std::{
 	ffi::CString,
 	fs::DirBuilder,
-	io::{self, Read},
+	io::{self, Read, Write},
 	os::unix::ffi::OsStrExt,
 	path::Path,
 };
 
+pub fn pack<W: Write, P: AsRef<Path>, E: AsRef<Path>, I: Iterator<Item = E>>(
+	archive: W,
+	source: P,
+	entries: I,
+) -> io::Result<W> {
+	let mut ar = tar::Builder::new(archive);
+	ar.mode(tar::HeaderMode::Deterministic);
+	ar.follow_symlinks(false);
+
+	for entry in entries {
+		let path = source.as_ref().join(entry.as_ref());
+		if path.is_dir() {
+			ar.append_dir_all(entry.as_ref(), path)?;
+		} else {
+			ar.append_path_with_name(path, entry.as_ref())?;
+		}
+	}
+
+	ar.into_inner()
+}
+
 pub fn unpack<R: Read, P: AsRef<Path>>(archive: R, dest: P) -> io::Result<()> {
 	let dest_path = dest.as_ref();