Add setLocalRulesVersion and getLocalRulesVersion .

Author: zhaobozhen

library/src/main/assets/lcrules/rules.db

@@ -8,13 +8,30 @@ import java.io.File
 object Repositories {
 
     const val RULES_DATABASE_NAME = "rules_database"
+    private const val LOCAL_RULES_VERSION_FILE = "lcrules/version"
 
     fun checkRulesDatabase(context: Context) {
         if (!checkMd5(context) && !checkVersion(context)) {
             deleteRulesDatabase(context)
         }
     }
 
+    fun getLocalRulesVersion(context: Context): Int {
+        val localCloudVersionFile = File(context.filesDir, LOCAL_RULES_VERSION_FILE)
+        if (localCloudVersionFile.exists().not()) return LCRules.getVersion()
+        if (localCloudVersionFile.isDirectory.not()) return LCRules.getVersion()
+        localCloudVersionFile.listFiles()?.takeIf { it.isNotEmpty() }?.let {
+            return runCatching { it[0].name.toInt() }.getOrDefault(LCRules.getVersion())
+        } ?: return LCRules.getVersion()
+    }
+
+    fun setLocalRulesVersion(context: Context, version: Int): Boolean {
+        val localCloudVersionFile = File(context.filesDir, LOCAL_RULES_VERSION_FILE)
+        if (localCloudVersionFile.isDirectory.not()) localCloudVersionFile.delete()
+        if (localCloudVersionFile.exists().not()) localCloudVersionFile.mkdirs()
+        return File(localCloudVersionFile, version.toString()).createNewFile()
+    }
+
     private fun deleteRulesDatabase(context: Context) {
         val databaseDir = context.getDatabasePath(RULES_DATABASE_NAME).parent
         FileUtils.delete(File(databaseDir, RULES_DATABASE_NAME))
@@ -34,7 +51,7 @@ object Repositories {
     }
 
     private fun checkVersion(context: Context): Boolean {
-        val versionFile = File(context.filesDir, "lcrules/version")
+        val versionFile = File(context.filesDir, LOCAL_RULES_VERSION_FILE)
         if (versionFile.exists().not()) return false
         if (versionFile.isDirectory.not()) return false
         versionFile.listFiles()?.takeIf { it.isNotEmpty() }?.let {