pbjs/cli.js

A minimal implementation of Google Protocol Buffers for JavaScript

#!/usr/bin/env node
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const commander = require("commander");
const fs = require("fs");
const index_1 = require("./index");
commander
    .version(JSON.parse(fs.readFileSync(__dirname + '/package.json', 'utf8')).version)
    .arguments('<schema_path>')
    .option('--es5 <js_path>', 'Generate ES5 JavaScript code')
    .option('--es6 <js_path>', 'Generate ES6 JavaScript code')
    .option('--ts <ts_path>', 'Generate TypeScript code')
    .option('--decode <msg_type>', 'Decode standard input to JSON')
    .option('--encode <msg_type>', 'Encode standard input to JSON')
    .parse(process.argv);
if (!process.argv.slice(2).length) {
    commander.outputHelp();
    process.exit(1);
}
const contents = fs.readFileSync(commander.args[0], 'utf8');
const schema = index_1.parseSchema(contents);
// Generate ES5 JavaScript code
if (commander.es5) {
    const js = schema.toJavaScript({ es6: false });
    fs.writeFileSync(commander.es5, js);
}
// Generate ES6 JavaScript code
if (commander.es6) {
    const js = schema.toJavaScript({ es6: true });
    fs.writeFileSync(commander.es6, js);
}
// Generate TypeScript code
if (commander.ts) {
    const ts = schema.toTypeScript();
    fs.writeFileSync(commander.ts, ts);
}
// Decode standard input to JSON
if (commander.decode) {
    const chunks = [];
    process.stdin.on('data', chunk => {
        chunks.push(chunk);
    });
    process.stdin.on('end', () => {
        console.log(JSON.stringify(schema.compile()['decode' + commander.decode](Buffer.concat(chunks)), null, 2));
    });
    process.stdin.resume();
}
// Encode standard input to JSON
else if (commander.encode) {
    const chunks = [];
    process.stdin.on('data', chunk => {
        chunks.push(chunk);
    });
    process.stdin.on('end', () => {
        process.stdout.write(schema.compile()['encode' + commander.encode](JSON.parse(chunks.join(''))));
    });
    process.stdin.resume();
}
if (!commander.es5 &&
    !commander.es6 &&
    !commander.ts &&
    !commander.decode &&
    !commander.encode) {
    commander.outputHelp();
    process.exit(1);
}