Add .xz archive support (#433)

Signed-off-by: egibs <[email protected]>

.github/workflows/go-tests.yaml

@@ -25,7 +25,7 @@ jobs:
 
       - name: Checkout code
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
-      
+
       - name: Checkout code
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
         with:
@@ -47,9 +47,9 @@ jobs:
           sudo add-apt-repository -n -y "deb http://security.ubuntu.com/ubuntu mantic-security main restricted universe multiverse"
 
           sudo apt update && sudo apt install libyara-dev -y
-        
+
       - name: Prepare samples
-        run : |
+        run: |
           cp -a ${{ github.workspace }}/test_data/. ${{ github.workspace }}/samples/
           for file in caddy.xz chezmoi.xz minio_x86_64.xz mongosh.xz neuvector_agent_aarch64.xz opa.xz ; do \
             tar -xJvf ${{ github.workspace }}/samples/linux/clean/${file} -C ${{ github.workspace }}/samples/linux/clean; \

pkg/action/archive.go

@@ -48,7 +48,7 @@ func extractTar(ctx context.Context, d string, f string) error {
 		}
 		defer gzStream.Close()
 		tr = tar.NewReader(gzStream)
-	case strings.Contains(filename, ".tar.xz"):
+	case strings.Contains(filename, ".xz"):
 		_, err := tf.Seek(0, io.SeekStart) // Seek to start for xz reading
 		if err != nil {
 			return fmt.Errorf("failed to seek to start: %w", err)
@@ -347,7 +347,7 @@ func extractionMethod(ext string) func(context.Context, string, string) error {
 		return extractZip
 	case ".gz":
 		return extractGzip
-	case ".apk", ".gem", ".tar", ".tar.gz", ".tgz", ".tar.xz":
+	case ".apk", ".gem", ".tar", ".tar.gz", ".tgz", ".tar.xz", ".xz":
 		return extractTar
 	default:
 		return nil

pkg/action/programkind.go

@@ -27,6 +27,7 @@ var archiveMap = map[string]bool{
 	".tar.xz": true,
 	".tar":    true,
 	".tgz":    true,
+	".xz":     true,
 	".zip":    true,
 }