gulpfile.js

var gulp = require("gulp");
var rename = require("gulp-rename");
var jshint = require("gulp-jshint");
var replace = require("gulp-replace");
var insert = require("gulp-insert");
var streamify = require("gulp-streamify");
var browserify = require("browserify");
var uglify = require("gulp-uglifyes");
var concat = require("gulp-concat");
var source = require("vinyl-source-stream");
var merge = require("merge-stream");
var collapse = require("bundle-collapser/plugin");
var Server = require("karma").Server;
var buble = require("gulp-buble");
var package = require("./package.json");
var sourcemaps = require("gulp-sourcemaps");

var header =
  "/*!\n" +
  " * Chart.Funnel.js\n" +
  " * A funnel plugin for Chart.js(http://chartjs.org/)\n" +
  " * Version: {{ version }}\n" +
  " *\n" +
  " * Copyright 2016 Jone Casaper & YetiForce\n" +
  " * Released under the MIT license\n" +
  " * https://github.com/xch89820/Chart.Funnel.js/blob/master/LICENSE.md\n" +
  " */\n";

gulp.task("js", function() {
  // Bundled library
  var bundled = browserify("./src/chart.funnel.js", {
    standalone: "Chart.Funnel"
  })
    .plugin(collapse)
    .bundle()
    .pipe(source("chart.funnel.bundled.js"))
    .pipe(insert.prepend(header))
    .pipe(streamify(replace("{{ version }}", package.version)))
    .pipe(streamify(jshint()))
    .pipe(jshint.reporter("default"))
    .pipe(gulp.dest("dist"))
    .pipe(streamify(uglify()))
    .pipe(insert.prepend(header))
    .pipe(streamify(replace("{{ version }}", package.version)))
    .pipe(streamify(concat("chart.funnel.bundled.min.js")))
    .pipe(gulp.dest("dist"));

  var nonBundled = browserify("./src/chart.funnel.js", {
    standalone: "Chart.Funnel"
  })
    .ignore("chart.js")
    .plugin(collapse)
    .bundle()
    .pipe(source("chart.funnel.js"))
    .pipe(insert.prepend(header))
    .pipe(streamify(replace("{{ version }}", package.version)))
    .pipe(streamify(jshint()))
    .pipe(jshint.reporter("default"))
    .pipe(gulp.dest("dist"))
    .pipe(streamify(uglify()))
    .pipe(insert.prepend(header))
    .pipe(streamify(replace("{{ version }}", package.version)))
    .pipe(streamify(concat("chart.funnel.min.js")))
    .pipe(gulp.dest("dist"));

  return merge(bundled, nonBundled);
});

gulp.task("jshint", function() {
  return gulp
    .src("src/**/*.js")
    .pipe(jshint("config.jshintrc"))
    .pipe(jshint.reporter("jshint-stylish"))
    .pipe(jshint.reporter("fail"));
});

gulp.task("compile-min", () =>
  gulp
    .src("dist/chart.funnel.js")
    .pipe(sourcemaps.init())
    .pipe(
      rename({
        suffix: ".min"
      })
    )
    .pipe(uglify())
    .pipe(buble())
    .pipe(sourcemaps.write("."))
    .pipe(gulp.dest("dist"))
);

// For CI
gulp.task("unittest.ci", function(done) {
  new Server(
    {
      configFile: __dirname + "/karma.conf.ci.js",
      singleRun: true
    },
    done
  ).start();
});

gulp.task("test.ci", ["jshint", "unittest.ci"]);

gulp.task("default", function() {
  gulp.watch("src/**/*.js", ["js"]);
});