function remove_directory(directory_path)

_build/pack_up.js

@@ -12,9 +12,14 @@ var repository = 'work_crawler', branch = 'master', update_script_url = 'https:/
 // ----------------------------------------------------------------------------
 
 // const
-var node_https = require('https'), node_fs = require('fs'), child_process = require('child_process');
+var node_https = require('https'), node_fs = require('fs'), child_process = require('child_process')
+// path segment separator
+path_separator = require('path').sep;
+
+// You may need to change the working directory first.
+
+show_info('Build package in current directory [' + process.cwd() + ']...');
 
-show_info('Build package in current directory...');
 download_update_tool(update_script_url, build_package);
 
 function show_info(message) {
@@ -56,19 +61,27 @@ function download_update_tool(update_script_url, callback) {
  });
 }
 
+function remove_directory(directory_path) {
+ var is_windows = process.platform.startsWith('win');
+ if (is_windows)
+ directory_path = directory_path.replace(/[\\\/]/g, path_separator);
+ child_process.execSync((is_windows ? 'rd /s /q' : 'rm -rf') + ' "'
+ + directory_path + '"', {
+ stdio : 'inherit'
+ });
+}
+
 function build_package(update_script_name) {
  var directory_name = repository + '-' + branch;
  if (node_fs.existsSync(directory_name)) {
  show_info('清理戰場...');
- child_process.execSync(
- (process.platform.startsWith('win') ? 'rd /s /q ' : 'rm -rf ')
- + directory_name, {
- stdio : 'inherit'
- });
+ remove_directory(directory_name);
  }
+ // clean previous cache
  try {
- fs.unlinkSync('work_crawler-master.version.json');
+ node_fs.unlinkSync('work_crawler-master.version.json');
  } catch (e) {
+ // TODO: handle exception
  }
 
  show_info('建立執行環境...');
@@ -78,7 +91,7 @@ function build_package(update_script_name) {
  });
 
  node_fs.renameSync(directory_name + '.version.json', directory_name
- + require('path').sep + directory_name + '.version.json');
+ + path_separator + directory_name + '.version.json');
 
  // cd work_crawler-master
  process.chdir(directory_name);
@@ -91,16 +104,10 @@ function build_package(update_script_name) {
  stdio : 'inherit'
  });
 
- // rm -rf node_modules/cejs
- child_process.execSync((process.platform.startsWith('win') ? 'rd /s /q '
- : 'rm -rf ')
- + 'node_modules/cejs', {
- stdio : 'inherit'
- });
+ remove_directory('node_modules/cejs');
 
  // mv CeJS-master node_modules/cejs
- node_fs.renameSync('CeJS-master', 'node_modules' + require('path').sep
- + 'cejs');
+ node_fs.renameSync('CeJS-master', 'node_modules' + path_separator + 'cejs');
 
  show_info('開始打包...');
  child_process.execSync('npm run-script dist', {