image2disk: add .zst extension, fix Readme

ldruschk · ldruschk · commit 0129ce9a7f01 · 2025-08-27T10:07:35.000+02:00
Signed-off-by: Lucas Druschke &lt;ldruschk@posteo.de&gt;
diff --git a/image2disk/README.md b/image2disk/README.md
@@ -58,7 +58,7 @@ actions:
 
 ## Supported Compression formats
 
-- bzip2 (`.bzip2`)
+- bzip2 (`.bzip2`, `.bz2`)
 - gzip (`.gz`)
 - xz (`.xz`)
-- xs (`.xs`)
+- zstd (`.zs`, `.zst`)
diff --git a/image2disk/image/image.go b/image2disk/image/image.go
@@ -186,7 +186,7 @@ func findDecompressor(imageURL string, r io.Reader) (io.ReadCloser, error) {
 			return nil, fmt.Errorf("[ERROR] New xz reader: %w", err)
 		}
 		return io.NopCloser(reader), nil
-	case ".zs":
+	case ".zs", ".zst":
 		reader, err := zstd.NewReader(r)
 		if err != nil {
 			return nil, fmt.Errorf("[ERROR] New zs reader: %w", err)

Original file line number	Diff line number	Diff line change
`@@ -186,7 +186,7 @@ func findDecompressor(imageURL string, r io.Reader) (io.ReadCloser, error) {`
`186`	`186`	`return nil, fmt.Errorf("[ERROR] New xz reader: %w", err)`
`187`	`187`	`}`
`188`	`188`	`return io.NopCloser(reader), nil`
`189`		`- case ".zs":`
	`189`	`+ case ".zs", ".zst":`
`190`	`190`	`reader, err := zstd.NewReader(r)`
`191`	`191`	`if err != nil {`
`192`	`192`	`return nil, fmt.Errorf("[ERROR] New zs reader: %w", err)`