Makefile.js

/**
 * @fileoverview Build file
 * @author nzakas
 */
/* global cp, echo, exit, find, mkdir, rm, target, test */

"use strict";

/* eslint no-console: 0*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------

require("shelljs/make");

var nodeCLI = require("shelljs-nodecli");

//------------------------------------------------------------------------------
// Data
//------------------------------------------------------------------------------

var NODE_MODULES = "./node_modules/",
    TEMP_DIR = "./tmp/",
    BUILD_DIR = "./build/",

    // Utilities - intentional extra space at the end of each string
    MOCHA = NODE_MODULES + "mocha/bin/_mocha ",

    // Files
    MAKEFILE = "./Makefile.js",
    /* eslint-disable no-use-before-define */
    JS_FILES = find("lib/").filter(fileType("js")).join(" ") + " espree.js",
    TEST_FILES = find("tests/lib/").filter(fileType("js")).join(" ");
    /* eslint-enable no-use-before-define */

//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------

/**
 * Generates a function that matches files with a particular extension.
 * @param {string} extension The file extension (i.e. "js")
 * @returns {Function} The function to pass into a filter method.
 * @private
 */
function fileType(extension) {
    return function(filename) {
        return filename.substring(filename.lastIndexOf(".") + 1) === extension;
    };
}

//------------------------------------------------------------------------------
// Tasks
//------------------------------------------------------------------------------

target.all = function() {
    target.test();
};

target.lint = function() {
    var errors = 0,
        lastReturn;

    echo("Validating Makefile.js");
    lastReturn = nodeCLI.exec("eslint", MAKEFILE);
    if (lastReturn.code !== 0) {
        errors++;
    }

    echo("Validating JavaScript files");
    lastReturn = nodeCLI.exec("eslint", JS_FILES);
    if (lastReturn.code !== 0) {
        errors++;
    }

    echo("Validating JavaScript test files");
    lastReturn = nodeCLI.exec("eslint", TEST_FILES);
    if (lastReturn.code !== 0) {
        errors++;
    }

    if (errors) {
        exit(1);
    }
};

target.test = function() {
    // target.lint();

    var errors = 0,
        lastReturn;

    lastReturn = nodeCLI.exec("istanbul", "cover", MOCHA, "-- -c", TEST_FILES);

    if (lastReturn.code !== 0) {
        errors++;
    }

    if (errors) {
        exit(1);
    }
};

target.docs = function() {
    echo("Generating documentation");
    nodeCLI.exec("jsdoc", "-d jsdoc lib");
    echo("Documentation has been output to /jsdoc");
};

target.browserify = function() {

    // 1. create temp and build directory
    if (!test("-d", TEMP_DIR)) {
        mkdir(TEMP_DIR);
        mkdir(TEMP_DIR + "/lib");
    }

    if (!test("-d", BUILD_DIR)) {
        mkdir(BUILD_DIR);
    }

    // 2. copy files into temp directory
    cp("-r", "lib/*", TEMP_DIR + "/lib");
    cp("espree.js", TEMP_DIR);
    cp("package.json", TEMP_DIR);


    // 3. browserify the temp directory
    nodeCLI.exec("browserify", TEMP_DIR + "espree.js", "-o", BUILD_DIR + "espree.js", "-s espree");

    // 4. remove temp directory
    rm("-r", TEMP_DIR);
};