fix(config): migrate project config and harden SmartFile and StreamFile defaults for updated toolchain compatibility

ts/classes.smartfile.ts

@@ -23,7 +23,7 @@ export class SmartFile extends plugins.smartjson.Smartjson {
    * the relative path of the file
    */
   @plugins.smartjson.foldDec()
-  public path: string;
+  public accessor path: string = '';
 
   /**
    * a parsed path
@@ -43,20 +43,20 @@ export class SmartFile extends plugins.smartjson.Smartjson {
    * the content of the file as Buffer
    */
   @plugins.smartjson.foldDec()
-  public contentBuffer: Buffer;
+  public accessor contentBuffer: Buffer = Buffer.alloc(0);
 
   /**
    * The current working directory of the file
    * Note:this is similar to gulp and different from native node path base
    */
   @plugins.smartjson.foldDec()
-  public base: string;
+  public accessor base: string = process.cwd();
 
   /**
    * sync the file with disk
    */
   @plugins.smartjson.foldDec()
-  public sync: boolean;
+  public accessor sync: boolean = false;
 
   /**
    * the constructor of Smartfile
@@ -64,13 +64,16 @@ export class SmartFile extends plugins.smartjson.Smartjson {
    * @param smartFs optional SmartFs instance for filesystem operations
    */
 
-  constructor(optionsArg: ISmartfileConstructorOptions, smartFs?: any) {
+  constructor(
+    optionsArg: ISmartfileConstructorOptions = {
+      path: '',
+      contentBuffer: Buffer.alloc(0),
+      base: process.cwd(),
+    },
+    smartFs?: any,
+  ) {
     super();
-    if (optionsArg.contentBuffer) {
-      this.contentBuffer = optionsArg.contentBuffer;
-    } else {
-      console.log('created empty Smartfile?');
-    }
+    this.contentBuffer = optionsArg.contentBuffer || Buffer.alloc(0);
     this.path = optionsArg.path;
     this.base = optionsArg.base;
     this.smartFs = smartFs;