builder: set the default compression algorithm for meta ci to lz4

We set the compression algorithm of meta ci to zstd by default, but there is no option for nydus-image to configure it. This could cause compatibility problems on the nydus version that does not support zstd. Let's reset it to lz4 by default. Signed-off-by: Huang Jianan <[email protected]>
dragonflyoss · May 31, 2023 · 1451e9b · 1451e9b
1 parent 08c3d0f
commit 1451e9b
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/rafs/src/builder/core/blob.rs b/rafs/src/builder/core/blob.rs
@@ -184,7 +184,11 @@ impl Blob {
             header.set_separate_blob(true);
         };
 
-        let mut compressor = compress::Algorithm::Zstd;
+        let mut compressor = if ctx.conversion_type.is_to_ref() {
+            compress::Algorithm::Zstd
+        } else {
+            ctx.compressor
+        };
         let (compressed_data, compressed) = compress::compress(ci_data, compressor)
             .with_context(|| "failed to compress blob chunk info array".to_string())?;
         if !compressed {