init

internal/apk_util/apk.go

@@ -0,0 +1,53 @@
+package apk_util
+
+import (
+	"github.com/shogo82148/androidbinary/apk"
+)
+
+// Info holds basic APK version information.
+type Info struct {
+	Version     string
+	VersionCode int32
+}
+
+// Version returns the versionName from an APK's manifest.
+func Version(path string) (string, error) {
+	a, err := apk.OpenFile(path)
+	if err != nil {
+		return "", err
+	}
+	defer a.Close()
+
+	v, err := a.Manifest().VersionName.String()
+	if err != nil {
+		return "", err
+	}
+
+	return v, nil
+}
+
+// Read returns version name and version code from an APK's manifest.
+func Read(path string) (*Info, error) {
+	a, err := apk.OpenFile(path)
+	if err != nil {
+		return nil, err
+	}
+	defer a.Close()
+
+	manifest := a.Manifest()
+
+	version, err := manifest.VersionName.String()
+	if err != nil {
+		return nil, err
+	}
+
+	code, err := manifest.VersionCode.Int32()
+	if err != nil {
+		return nil, err
+	}
+
+	return &Info{
+		Version:     version,
+		VersionCode: code,
+	}, nil
+}