<NME> gulpfile.js
<BEF> 'use strict';

var gulp = require( 'gulp' );
var download = require( 'gulp-download' );
var decompress = require( 'gulp-decompress' );
var convertEncoding = require( 'gulp-convert-encoding' );
var chmod = require( 'gulp-chmod' );
var p2j = require( './lib/glup-p2j.js' );

gulp.task( 'default', function () {
  return download( [
    'http://www.post.japanpost.jp/zipcode/dl/roman/ken_all_rome.zip',
  ] )
  .pipe( decompress() )
  .pipe( convertEncoding( { from: "shift_jis", to: "utf-8" } ) )
  .pipe( p2j() )
  .pipe( chmod( 644 ) )
  .pipe( gulp.dest( function( args ) {
    return 'api/v1';
  } ) );
} );
/**
 * Create an API of the postal code.
 */
gulp.task( 'v1', [ 'download' ], function () {
  gulp.src( 'api/KEN_ALL_ROME.CSV' )
    .pipe( postal2json() )
    .pipe( v1() )
    .pipe( chmod( 644 ) )
    .pipe( gulp.dest( 'api/v1' ) );
} );

/**
 * Create an API of the Jigyosyo postal code.
 */
gulp.task( 'v1-jigyosyo', ['download'], function () {
  gulp.src( 'api/JIGYOSYO.CSV' )
    .pipe( jigyosyo2json() )
    .pipe( v1() )
    .pipe( chmod( 644 ) )
    .pipe( gulp.dest( 'api/v1' ) );
} );

gulp.task( 'default', [ 'v1', 'v1-jigyosyo' ] );

<MSG> some fix

<DFF> @@ -5,17 +5,19 @@ var download = require( 'gulp-download' );
 var decompress = require( 'gulp-decompress' );
 var convertEncoding = require( 'gulp-convert-encoding' );
 var chmod = require( 'gulp-chmod' );
-var p2j = require( './lib/glup-p2j.js' );
+var v1 = require( './lib/v1.js' );
 
-gulp.task( 'default', function () {
+gulp.task( 'v1', function () {
   return download( [
     'http://www.post.japanpost.jp/zipcode/dl/roman/ken_all_rome.zip',
   ] )
   .pipe( decompress() )
   .pipe( convertEncoding( { from: "shift_jis", to: "utf-8" } ) )
-  .pipe( p2j() )
+  .pipe( v1() )
   .pipe( chmod( 644 ) )
   .pipe( gulp.dest( function( args ) {
     return 'api/v1';
   } ) );
 } );
+
+gulp.task( 'default', [ 'v1' ] );

some fix