Compress the snapshot in a tarball

meilisearch-types/src/compression.rs

@@ -0,0 +1,28 @@
+use std::fs::{create_dir_all, File};
+use std::io::Write;
+use std::path::Path;
+
+use flate2::read::GzDecoder;
+use flate2::write::GzEncoder;
+use flate2::Compression;
+use tar::{Archive, Builder};
+
+pub fn to_tar_gz(src: impl AsRef<Path>, dest: impl AsRef<Path>) -> anyhow::Result<()> {
+    let mut f = File::create(dest)?;
+    let gz_encoder = GzEncoder::new(&mut f, Compression::default());
+    let mut tar_encoder = Builder::new(gz_encoder);
+    tar_encoder.append_dir_all(".", src)?;
+    let gz_encoder = tar_encoder.into_inner()?;
+    gz_encoder.finish()?;
+    f.flush()?;
+    Ok(())
+}
+
+pub fn from_tar_gz(src: impl AsRef<Path>, dest: impl AsRef<Path>) -> anyhow::Result<()> {
+    let f = File::open(&src)?;
+    let gz = GzDecoder::new(f);
+    let mut ar = Archive::new(gz);
+    create_dir_all(&dest)?;
+    ar.unpack(&dest)?;
+    Ok(())
+}