cli.js

#!/usr/bin/env node

var path = require('path');
var fs = require('fs');
var reshape = require('reshape');
var globby = require('globby');
var argv = require('yargs')
	.usage('Usage: $0 [-o output-file/directory|-r] [-i input-file/directory] [--config|-c path/to/file/config]')
	.example('reshape -o output.html -i input.html', 'Default example')
	.alias('i', 'input')
	.array('input')
	.demand(['i'])
	.alias('o', 'output')
	.alias('r', 'replace')
	.alias('u', 'use')
	.array('use')
	.pkgConf('reshape')
	.config('c')
	.alias('c', 'config')
	.version(function () {
		return require('./package.json').version;
	})
	.alias('v', 'version')
	.help('h')
	.alias('h', 'help')
	.check(function (argv) {
		if (argv.output && argv.replace) {
			throw new Error('Both `output file` and `replace` provided: please use either --output or --replace option.');
		}
		if (!argv.output && !argv.replace) {
			throw new Error('Both `output file` and `replace` missing: please use either --output or --replace option.');
		}
		return true;
	})
	.argv;

function processing(file, output) {
	// get htmls
	var html = fs.readFileSync(file, 'utf8');

	// config
	var config = {
		plugins: {}
	};

	// create config extends for post-load-plugins
	if (argv.use) {
		argv.use.forEach(function (plugin) {
			config.plugins[plugin] = argv[plugin] || {};
		});
	}

	if (argv.config) {
		config = Object.assign(require(path.resolve(argv.config)), config);
	}

	config.plugins = [require('post-load-plugins')(config)];

	// processing
	reshape(config)
	.process(html)
	.then(function (result) {
		fs.writeFileSync(output, result.output());
	});
}

function isFile(outputPath) {
	if (outputPath === undefined) {
		return false;
	}
	return Boolean(path.extname(outputPath));
}

function getOutput(file) {
	if (argv.output === undefined) {
		return file;
	}
	return argv.output + path.basename(file);
}

function createFolder(outputPath) {
	if (isFile(outputPath) === true) {
		outputPath = path.dirname(outputPath);
	}

	if (fs.existsSync(outputPath) === false) {
		fs.mkdirSync(outputPath);
	}
}

globby(argv.input).then(function (files) {
	if (argv.output !== undefined) {
		createFolder(argv.output);
	}

	files.forEach(function (file) {
		var output = isFile(argv.output) ? argv.output : getOutput(file);
		processing(file, output);
	});
});