file-indexer

Create index.js file for folders

npm install --save-dev file-indexer

Why

Reduces boilerplate for nested file structures.

before

var one = require('./path/one');
var two = require('./path/two');
var three = require('./path/three');

after

es6

import {one, two, three} from './path';

js

var path = require('./path');
var one = path.one, two = path.two, three = path.three;

####es6

API

indexer(array|string, callback)

array|string

A folder path string (or an array of folder paths) where you'd like to generate index.js files.

callback(error, files)

files: an object of buffers labeled by relative filename.

if indexer(['./file1', './path/file2'], cb(<err>, <files>))

files = {
 file1: <buf>,
 file2: <buf>
}

How to Use

var indexer = require('file-indexer');
indexer(['./path/folder', './path/src', './path/src/components'], function(err, files) {
  fs.writeFileSync('./path/folder/index.js', files.folder);
  fs.writeFileSync('./path/src/index.js', files.src);
  fs.writeFileSync('./path/src/components/index.js', files.components);
})

With folder stucture:

• path/
  • folder/
    • one.js
    • two.js
    • three.js
    • index.js

path/folder/index.js

var index = {};

module.exports = index;

index['one'] = require('./one');
index['two'] = require('./two');
index['three'] = require('./three');

• src/
  • init.js
  • save.js
  • components/
  • index.js

src/index.js

var index = {};

module.exports = index;

index['init'] = require('./init');
index['save'] = require('./save');
index['components'] = require('./components');

• components/
  • header.js
  • footer.js
  • index.js

components/index.js

var index = {};

module.exports = index;

index['header'] = require('./header');
index['footer'] = require('./footer');

Using gulp-ecosystem

Gulp-Pattern (plugin in the works)

var tap = require('gulp-tap');
var conflict = require('gulp-conflict')
var rename = require('gulp-rename');

var paths = ['./path/folder', './path/src'];

gulp.task('index', function() {
  indexer(paths, function(err, files) {

    gulp.src(paths)
        .pipe(tap(function(file) {
          gulp.src(file.path, {read: false})
              .pipe(tap(function(file) {
                file.contents = files[file.relative]
              }))
              .pipe(rename('index.js'))
              .pipe(conflict(file.path))
              .pipe(gulp.dest(file.path))
        }))

  })
})

MIT