cyberalien-color
Version:
Color library
296 lines (259 loc) • 9.07 kB
JavaScript
;
// Node modules
const fs = require('fs'),
path = require('path'),
glob = require('glob');
// List of source files
const sources = [
'keywords.js',
'color.js',
];
// List of directories
const testsDir = 'tests',
srcDir = 'src',
distDir = 'dist';
// Library name
const libraryName = 'color';
// Output banner and footer
const banner = '/**\n' +
' * This file is part of the cyberalien-color package.\n' +
' *\n' +
' * (c) Vjacheslav Trushkin <cyberalien@gmail.com>\n' +
' *\n' +
' * For the full copyright and license information, please view the LICENSE\n' +
' * file that was distributed with this source code.\n' +
' */\n',
bannerBrowser = banner +
'\n' +
'"use strict";\n\n' +
'((_global) => {\n' +
' var modules = {};\n\n',
footer = '\n\n // Export to global namespace\n' +
' _global.CAColor = modules.Color;\n' +
'\n' +
'})(typeof window !== "undefined" ? window : (typeof WorkerGlobalScope !== "undefined" ? self : (typeof global !== "undefined" ? global : Function("return this;")())));\n';
// List of test files
let tests = {
// List of tests in order they should run.
// Script will scan for missing files and append them to list.
color: [],
adjustments: []
};
/**
* Find missing files
*
* @param {string} path Directory to check
* @param {Array} files List of known files
* @returns {Array}
*/
function findMissingFiles(path, files) {
let start = path.length + 1;
glob.sync(path + '/**', {nodir: true}).forEach(file => {
file = file.slice(start);
if (files.indexOf(file) === -1) {
files.push(file);
}
});
return files;
}
/**
* Convert filename to key
*
* @param filename
* @returns {string}
*/
function sourceToKey(filename) {
filename = path.normalize(filename).slice(srcDir.length + 1);
return filename.split('.')[0].split(/[/_]/).map(item => item.slice(0, 1).toUpperCase() + item.slice(1)).join('');
}
/**
* Remove header from .js file before merging it into one big file
*
* @param {string} str
* @param {string} file
* @returns {string}
*/
function parseFile(str, file) {
// Remove header
let pos = str.indexOf('"use strict";');
str = pos === -1 ? str : str.slice(pos + 13);
// Remove node-only code
let start = 0;
while ((pos = str.indexOf('// NODE ONLY', start)) !== -1) {
let end = str.indexOf('///NODE ONLY', pos);
if (end === -1) {
break;
}
str = str.slice(0, pos) + str.slice(end + 13);
start = pos;
}
// Change require
start = 0;
let dir = path.dirname(file);
dir = dir.length ? dir + '/' : '';
while ((pos = str.indexOf('require(', start)) !== -1) {
let end = str.indexOf(')', pos);
if (end === -1) {
console.log('Error parsing require() in ' + file);
throw new Error('Error parsing require() in ' + file);
}
let url = str.slice(pos + 8, end).trim();
if (url[0] !== '"' && url[0] !== "'") {
console.log('Error parsing require() in ' + file);
throw new Error('Error parsing require() in ' + file);
}
url = path.normalize(dir + url.slice(1, url.length - 1));
let replacement = 'modules[\'' + sourceToKey(url) + '\']';
str = str.slice(0, pos) + replacement + str.slice(end + 1);
start = pos + replacement.length;
}
// Change module.exports
str = str.replace('module.exports =', 'modules[\'' + sourceToKey(file) + '\'] =');
return str;
}
// Do Grunt stuff
module.exports = function(grunt) {
let config = {
clean: [distDir, testsDir + '/browser.js'],
concat: {
options: {
banner: bannerBrowser,
footer: footer,
process: (src, filepath) =>
" (() => {\n" +
" " +
parseFile(src, filepath).
replace(/(\n)/g, "\n ").
trim() +
"\n" +
" })();"
},
dist: {
src: sources.map(file => srcDir + '/' + file),
dest: distDir + '/full.js'
}
},
'compile-es6': {
options: {
sourceMap: false,
compact: false,
comments: true,
plugins: [
'transform-es2015-parameters',
'transform-es2015-destructuring',
['transform-es2015-arrow-functions', { 'spec': false }]
]
},
dist: {
files: {
[distDir + '/full/' + libraryName + '-es6.js']: distDir + '/full.js'
}
}
},
'compile-es6-min': {
options: {
sourceMap: false,
compact: true,
comments: false,
plugins: [
'transform-es2015-parameters',
'transform-es2015-destructuring',
['transform-es2015-arrow-functions', { 'spec': false }]
]
},
dist: {
files: {
[distDir + '/' + libraryName + '-es6.js']: distDir + '/full.js'
}
}
},
'compile-es5': {
options: {
presets: ["es2015"]
},
dist: {
files: {
[distDir + '/full/' + libraryName + '-es5.js']: distDir + '/full.js'
}
}
},
uglify: {
dist: {
files: {
[distDir + '/' + libraryName + '-es5.js']: distDir + '/full/' + libraryName + '-es5.js'
}
}
},
watch: {
dist: {
files: [srcDir + '/**/*.js'],
tasks: ['compile-main']
}
}
};
function loadTaskAs(task, key, names) {
names.forEach(name => {
grunt.loadNpmTasks(task);
grunt.renameTask(key, name);
});
}
// Load tasks
grunt.loadNpmTasks('grunt-contrib-concat');
grunt.loadNpmTasks("grunt-contrib-clean");
grunt.loadNpmTasks('grunt-contrib-uglify');
grunt.loadNpmTasks('grunt-contrib-watch');
// Babel
loadTaskAs('grunt-babel', 'babel', ['compile-es6', 'compile-es6-min', 'compile-es5']);
// Cleanup
grunt.registerTask('cleanup-es5', function() {
let files = [distDir + '/full/' + libraryName + '-es5.js'],
search1 = '"use strict";',
search2 = '(function () {';
files.forEach(filename => {
// Move Babel stuff inside anonymous function
let data = fs.readFileSync(filename, 'utf8'),
start = data.indexOf(search1),
end = data.indexOf(search2, start);
if (start === -1 || end === -1) {
return;
}
data = data.slice(0, start + search1.length).trim() + '\n\n' +
search2 + '\n\n ' +
data.slice(start + search1.length, end).trim().replace(/(\n)/g, '\n ') + '\n ' +
data.slice(end + search2.length);
fs.writeFileSync(filename, data, 'utf8');
});
fs.unlinkSync(distDir + '/full.js');
});
// Add comments to minified files
grunt.registerTask('cleanup-minified', function() {
let files = [distDir + '/' + libraryName + '-es6.js', distDir + '/' + libraryName + '-es5.js'];
files.forEach(filename => {
let data = fs.readFileSync(filename, 'utf8');
if (data.slice(0, 2) === '/*') {
return;
}
fs.writeFileSync(filename, banner + data.trim() + '\n', 'utf8');
});
});
// Create list of tests
grunt.registerTask('compile-browser-tests', function() {
let time = Date.now();
fs.writeFileSync(testsDir + '/browser.js',
'/* List of tests to open in browser. See tests.html in parent directory. */\n' +
findMissingFiles(testsDir, [])
.filter(file => file.slice(-8) === '_test.js')
.map(name => 'document.write(\'<' + 'script src="' + testsDir + '/' + name + '?' + time + '"></' + 'script>\');')
.join('\n') +
'\n',
'utf8'
);
});
// Compilation
grunt.registerTask('compile-main', ['concat', 'compile-es6']);
grunt.registerTask('compile', ['clean', 'concat', 'compile-main', 'compile-es6-min', 'compile-es5', 'uglify', 'cleanup-es5', 'cleanup-minified', 'compile-browser-tests']);
grunt.registerTask('test', 'compile-browser-tests');
grunt.registerTask('default', 'compile');
// Init configuration file
grunt.initConfig(config);
};