support install local archive

pkg/util/util.go

@@ -54,7 +54,6 @@ func Wget(ctx context.Context, rawURL string, dest string) (string, error) {
 
 // InstallArchive downloads the URL and extracts the archive to the dest diretory.
 // Supports zip, and tarball.
-// TODO: support local file
 func InstallArchive(ctx context.Context, rawURL string, dest string) error {
 	err := os.MkdirAll("/tmp/chaos", 0755)
 	if err != nil {
@@ -69,8 +68,12 @@ func InstallArchive(ctx context.Context, rawURL string, dest string) error {
 	defer os.RemoveAll(tmpDir)
 
 	var name string
-	if name, err = Wget(ctx, rawURL, tmpDir); err != nil {
-		return err
+	if strings.HasPrefix(rawURL, "file://") {
+		name = strings.Trim(rawURL, "file://")
+	} else {
+		if name, err = Wget(ctx, rawURL, "/tmp/chaos"); err != nil {
+			return err
+		}
 	}
 
 	if strings.HasSuffix(name, ".zip") {
@@ -83,9 +86,6 @@ func InstallArchive(ctx context.Context, rawURL string, dest string) error {
 		return err
 	}
 
-	// Remove the archive file
-	os.Remove(name)
-
 	if dest, err = filepath.Abs(dest); err != nil {
 		return err
 	}

pkg/util/util_test.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"io/ioutil"
 	"os"
+	"os/exec"
 	"path"
 	"strconv"
 	"testing"
@@ -41,6 +42,27 @@ func TestInstallArchive(t *testing.T) {
 	if err != nil {
 		t.Fatalf("install archive failed %v", err)
 	}
+
+	archFile := path.Join(tmpDir, "a.tar.gz")
+	testCreateArichive(t, path.Join(tmpDir, "test"), archFile)
+	err = InstallArchive(context.Background(), "file://"+archFile, path.Join(tmpDir, "3"))
+	if err != nil {
+		t.Fatalf("install archive failed %v", err)
+	}
+}
+
+func testCreateArichive(t *testing.T, srcDir string, name string) {
+	os.MkdirAll(srcDir, 0755)
+	f, err := os.Create(path.Join(srcDir, "a.log"))
+	if err != nil {
+		t.Fatalf("create file failed %v", err)
+	}
+	f.WriteString("hello world")
+	f.Close()
+
+	if err = exec.Command("tar", "-cf", name, "-C", srcDir, ".").Run(); err != nil {
+		t.Fatalf("tar %f to %f failed %v", srcDir, name, err)
+	}
 }
 
 func TestDaemon(t *testing.T) {