langium-cli/lib/langium.js

CLI for Langium - the language engineering tool

/******************************************************************************
 * Copyright 2021 TypeFox GmbH
 * This program and the accompanying materials are made available under the
 * terms of the MIT License, which is available in the project root.
 ******************************************************************************/
import { Command, Option } from 'commander';
import { generate, generateTypes } from './generate.js';
import { cliVersion } from './generator/node-util.js';
const program = new Command();
program
    .version(cliVersion)
    .command('generate')
    .description('Generate code for a Langium grammar')
    .option('-f, --file <file>', 'the configuration file or package.json setting up the generator')
    .option('-w, --watch', 'enables watch mode', false)
    .addOption(new Option('-m, --mode <mode>', 'used mode for optimized builds for your current environment').choices(['development', 'production']))
    .action((options) => {
    generate(options)
        .then(success => {
        if (!success) {
            process.exit(2);
        }
        else {
            process.exit(0);
        }
    }).catch(err => {
        console.error(err);
        process.exit(1);
    });
});
program.command('extract-types')
    .argument('<file>', 'the langium grammar file to generate types for')
    .option('-o, --output <file>', 'output file name. Default is types.langium next to the grammar file.')
    .option('-f, --force', 'Force overwrite existing file.')
    .action((file, options) => {
    options.grammar = file;
    generateTypes(options).catch(err => {
        console.error(err);
        process.exit(1);
    });
});
program.parse(process.argv);
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