generator-fedhipster/generators/generator-transforms.js

Spring Boot + Angular/React in one handy generator

/**
 * Copyright 2013-2019 the original author or authors from the JHipster project.
 *
 * This file is part of the JHipster project, see https://www.jhipster.tech/
 * for more information.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const through = require('through2');
const prettier = require('prettier');

const prettierOptions = {
    printWidth: 140,
    singleQuote: true,
    useTabs: false,
    tabWidth: 2,
    // js and ts rules:
    arrowParens: 'avoid',
    // jsx and tsx rules:
    jsxBracketSameLine: false
};

const prettierTransform = function(defaultOptions) {
    const transform = (file, encoding, callback) => {
        /* resolve from the projects config */
        prettier.resolveConfig(file.relative).then(options => {
            if (file.state !== 'deleted') {
                const str = file.contents.toString('utf8');
                if (!options || Object.keys(options).length === 0) {
                    options = defaultOptions;
                }
                // for better errors
                options.filepath = file.relative;
                const data = prettier.format(str, options);
                file.contents = Buffer.from(data);
            }
            callback(null, file);
        });
    };
    return through.obj(transform);
};

module.exports = {
    prettierTransform,
    prettierOptions
};