bug fix in debugging (cwd = null) DonJayamanne#589, #546

Author: DonJayamanne

src/client/debugger/DebugClients/LocalDebugClient.ts

@@ -66,7 +66,7 @@ export class LocalDebugClient extends DebugClient {
  return new Promise<any>((resolve, reject) => {
  let fileDir = path.dirname(this.args.program);
  let processCwd = fileDir;
- if (typeof this.args.cwd === 'string' && this.args.cwd.length > 0) {
+ if (typeof this.args.cwd === 'string' && this.args.cwd.length > 0 && this.args.cwd !== 'null') {
  processCwd = this.args.cwd;
  }
  let pythonPath = 'python';

src/client/debugger/DebugClients/NonDebugClient.ts

@@ -42,7 +42,7 @@ export class NonDebugClient extends DebugClient {
  return new Promise<any>((resolve, reject) => {
  let fileDir = path.dirname(this.args.program);
  let processCwd = fileDir;
- if (typeof this.args.cwd === "string" && this.args.cwd.length > 0) {
+ if (typeof this.args.cwd === "string" && this.args.cwd.length > 0 && this.args.cwd !== 'null') {
  processCwd = this.args.cwd;
  }
  let pythonPath = "python";