bem-project distribution with Gulp

gulpfile.js

var pkg      = require('./package.json'),
    settings = pkg._settings,
    bem      = require('bem').api,
    gulp     = require('gulp'),
    gif      = require('gulp-if'),
    csso     = require('gulp-csso'),
    uglify   = require('gulp-uglify'),
    rename   = require('gulp-rename'),
    replace  = require('gulp-replace'),
    path     = require('path'),
    join     = path.join,

    BUNDLE       = 'index',
    BUNDLES_PATH = join(settings.root, settings.bundles),
    BUNDLE_DIR   = join(BUNDLES_PATH, BUNDLE),
    // .prefix.css is the css after autoprefixer updates, it works by magic node in make.js
    BUNDLE_CSS   = join(BUNDLE_DIR, '_' + BUNDLE + '.prefix.css'),
    BUNDLE_JS    = join(BUNDLE_DIR, '_' + BUNDLE + '.js'),
    BUNDLE_HTML  = join(BUNDLE_DIR, BUNDLE + '.html'),

    PUBLIC_PATH  = settings.public,
    PUBLIC_CSS   = join(PUBLIC_PATH, settings.styles.dest),
    PUBLIC_JS    = join(PUBLIC_PATH, settings.scripts.dest),
    PUBLIC_IMG   = join(PUBLIC_PATH, settings.images.dest),

    VERSION      = pkg.version;

gulp.task('bem', function() {
    bem.make({ verbosity: 'error' }, {targets: BUNDLE_DIR});
});

gulp.task('csso', function() {
    gulp.src(BUNDLE_CSS)
        .pipe(csso())
        .pipe(rename(settings.styles.filename))
        .pipe(gulp.dest(PUBLIC_CSS));
});

gulp.task('uglify', function() {
    gulp.src(BUNDLE_JS)
        .pipe(uglify())
        .pipe(rename(settings.scripts.filename))
        .pipe(gulp.dest(PUBLIC_JS));
});

gulp.task('replace', function() {
    gulp.src(BUNDLE_HTML)
        .pipe(replace('_' + BUNDLE + '.prefix.css', join(settings.styles.dest, settings.styles.filename)))
        .pipe(replace('_' + BUNDLE + '.js', join(settings.scripts.dest, settings.scripts.filename)))
        .pipe(gulp.dest(PUBLIC_PATH));
});

gulp.task('dist', ['csso', 'uglify', 'replace']);

gulp.task('default', ['bem']);

package.json

{
  "name": "project-name",
  "version": "0.0.1",
  "description": "Write some words about project-name",
  "private": true,
  "homepage": "https://github.com/verybigman/project-name",
  "bugs": "https://github.com/verybigman/project-name/issues",
  "author": {
    "name": "verybigman",
    "email": "[email protected]",
    "url": "https://github.com/verybigman"
  },
  "repository": {
    "type": "git",
    "url": "git://github.com/verybigman/project-name.git"
  },
  "_settings": {
    "root": "app",
    "blocks": "blocks",
    "bundles": "bundles",
    "libs": "bower_components",
    "public": "public",
    "scripts": {
      "dest": "scripts",
      "filename": "scripts.min.js"
    },
    "styles": {
      "dest": "styles",
      "filename": "styles.min.css"
    },
    "images": {
      "dest": "images"
    },
    "dist": {
        "dest": "dist",
        "filename": "project-name"
    }
  },
  "dependencies": {},
  "devDependencies": {
    "bem": "~0.7.6",
    "bem-environ": "~1.3.1",
    "borschik": "~0.4.2",
    "bower-npm-install": "~0.5.2",
    "bem-tools-autoprefixer": "0.0.2",
    "bem-cli": "~1.0.1",
    "gulp": "~3.6.0",
    "gulp-if": "0.0.5",
    "node-sass": "~0.8.4",
    "gulp-csso": "~0.2.7",
    "gulp-uglify": "~0.2.1",
    "gulp-rename": "~1.2.0",
    "gulp-replace": "~0.2.0"
  },
  "engines": {
    "node": ">=0.8.0"
  },
  "license": "MIT"
}