gulpfile.js

"use strict";

const gulp = require("gulp");
const concat = require("gulp-concat");
const replace = require("gulp-replace");
const changed = require("gulp-changed");
const order = require("gulp-order");
const uglify = require("gulp-uglify");
const sourcemaps = require("gulp-sourcemaps");
const iife = require("gulp-iife");
const istanbul = require("gulp-istanbul");
const tape = require("gulp-tape");
const tapSpec = require("tap-spec");

const replacements = require("./src/replacements");

const sources = [
  "src/header.js",
  "node_modules/uglify-js/lib/parse-js.js",
  "src/api.js"
];

gulp.task("build-dev", function() {
  return gulp.src(sources)
    .pipe(order(sources, { base: __dirname }))
    .pipe(sourcemaps.init())
    .pipe(replace(replacements[0].from, replacements[0].to))
    .pipe(replace(replacements[1].from, replacements[1].to))
    .pipe(replace(replacements[2].from, replacements[2].to))
    .pipe(replace(replacements[3].from, replacements[3].to))
    .pipe(concat("qmlweb.parser.js"))
    .pipe(iife({
      useStrict: false,
      params: ["exports"],
      args: ["{}"]
    }))
    .pipe(changed("./lib"))
    .pipe(sourcemaps.write("./"))
    .pipe(gulp.dest("./lib"));
});

gulp.task("build", gulp.series("build-dev", function() {
  return gulp.src("./lib/qmlweb.parser.js")
    .pipe(concat("qmlweb.parser.min.js"))
    .pipe(changed("./lib"))
    .pipe(sourcemaps.init({ loadMaps: true }))
    .pipe(uglify())
    .pipe(sourcemaps.write("./"))
    .pipe(gulp.dest("./lib"));
}));

gulp.task("build-covered-api", function() {
  return gulp.src(["src/api.js"])
    .pipe(istanbul())
    .pipe(concat("api.covered.js"))
    .pipe(gulp.dest("./tmp"));
});

gulp.task("build-covered", gulp.series("build-covered-api", function() {
  process.env.QMLWEB_PARSER_PATH = "tmp/qmlweb.parser.covered";
  return gulp.src(
    [
      "src/header.js",
      "node_modules/uglify-js/lib/parse-js.js",
      "tmp/api.covered.js"
    ])
    .pipe(order(sources, { base: __dirname }))
    .pipe(replace(replacements[0].from, replacements[0].to))
    .pipe(replace(replacements[1].from, replacements[1].to))
    .pipe(replace(replacements[2].from, replacements[2].to))
    .pipe(replace(replacements[3].from, replacements[3].to))
    .pipe(concat("qmlweb.parser.covered.js"))
    .pipe(iife({
      useStrict: false,
      params: ["exports"],
      args: ["{}"]
    }))
    .pipe(gulp.dest("./tmp"));
}));

gulp.task("test", gulp.series("build", function() {
  return gulp.src("tests/tape.js")
    .pipe(tape({
      reporter: tapSpec()
    }));
}));

gulp.task("cover", gulp.series("build-covered", function() {
  return gulp.src("tests/tape.js")
    .pipe(tape({
      reporter: tapSpec()
    }))
    .pipe(istanbul.writeReports());
}));

gulp.task("watch", gulp.series("build", function() {
  gulp.watch(sources, ["build"]);
}));

gulp.task("watch-dev", gulp.series("build-dev", function() {
  gulp.watch(sources, ["build-dev"]);
}));

gulp.task("default", gulp.series("watch"));