gulpfile.js

'use strict';

var gulp = require('gulp');
var mocha = require('gulp-mocha');
var istanbul = require('gulp-istanbul');
var eslint = require('gulp-eslint');
var unused = require('gulp-unused');

gulp.task('coverage', ['eslint'], function () {
  return gulp
    .src(['index.js', 'lib/**/*.js'])
    .pipe(istanbul({ includeUntested: true }))
    .pipe(istanbul.hookRequire());
});

gulp.task('mocha', ['coverage'], function () {
  return gulp
    .src('test/{integration/,}*.js')
    .pipe(mocha({ reporter: 'spec' }))
    .pipe(istanbul.writeReports())
    .pipe(
      istanbul.writeReports({
        reporters: ['text', 'text-summary'],
        reportOpts: { dir: 'coverage', file: 'summary.txt' }
      })
    );
});

gulp.task('eslint', function () {
  return gulp
    .src(['*.js', 'lib/**/*.js', 'test/*.js'])
    .pipe(eslint())
    .pipe(eslint.format())
    .pipe(eslint.failAfterError());
});

gulp.task('unused', function () {
  var utils = require('./lib/utils');
  return gulp
    .src(['index.js', 'lib/**/*.js'])
    .pipe(unused({ keys: Object.keys(utils) }));
});

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