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chalk from 'chalk';\nimport childProcess from 'child_process';\nimport {Command as CommanderCommand} from 'commander';\nimport path from 'path';\nimport {Command, Config} from '@react-native-community/cli-types';\nimport {logger, CLIError} from '@react-native-community/cli-tools';\nimport {detachedCommands, projectCommands} from './commands';\nimport loadConfig from '@react-native-community/cli-config';\nconst pkgJson = require('../package.json');\n\nconst program = new CommanderCommand()\n .usage('[command] [options]')\n .version(pkgJson.version, '-v', 'Output the current version')\n .option('--verbose', 'Increase logging verbosity');\n\nconst handleError = (err: Error) => {\n logger.enable();\n if (program.opts().verbose) {\n logger.error(err.message);\n } else {\n // Some error messages (esp. custom ones) might have `.` at the end already.\n const message = err.message.replace(/\\.$/, '');\n logger.error(`${message}.`);\n }\n if (err.stack) {\n logger.log(err.stack);\n }\n if (!program.opts().verbose) {\n logger.info(\n chalk.dim(\n `Run CLI with ${chalk.reset('--verbose')} ${chalk.dim(\n 'flag for more details.',\n )}`,\n ),\n );\n }\n process.exit(1);\n};\n\nfunction printExamples(examples: Command['examples']) {\n let output: string[] = [];\n\n if (examples && examples.length > 0) {\n const formattedUsage = examples\n .map((example) => ` ${example.desc}: \\n ${chalk.cyan(example.cmd)}`)\n .join('\\n\\n');\n\n output = output.concat([chalk.bold('\\nExample usage:'), formattedUsage]);\n }\n\n return output.join('\\n').concat('\\n');\n}\n\n/**\n * Custom type assertion needed for the `makeCommand` conditional\n * types to be properly resolved.\n */\nconst isDetachedCommand = (\n command: Command<boolean>,\n): command is Command<true> => {\n return command.detached === true;\n};\n\n/**\n * Attaches a new command onto global `commander` instance.\n *\n * Note that this function takes additional argument of `Config` type in case\n * passed `command` needs it for its execution.\n */\nfunction attachCommand<IsDetached extends boolean>(\n command: Command<IsDetached>,\n ...rest: IsDetached extends false ? [Config] : []\n): void {\n const cmd = program\n .command(command.name)\n .action(async function handleAction(\n this: CommanderCommand,\n ...args: string[]\n ) {\n const passedOptions = this.opts();\n const argv = Array.from(args).slice(0, -1);\n\n try {\n if (isDetachedCommand(command)) {\n await command.func(argv, passedOptions);\n } else {\n await command.func(argv, rest[0] as Config, passedOptions);\n }\n } catch (error) {\n handleError(error);\n }\n });\n\n if (command.description) {\n cmd.description(command.description);\n }\n\n cmd.addHelpText('after', printExamples(command.examples));\n\n for (const opt of command.options || []) {\n cmd.option(\n opt.name,\n opt.description ?? '',\n opt.parse || ((val: any) => val),\n typeof opt.default === 'function'\n ? opt.default(rest[0] as Config)\n : opt.default,\n );\n }\n}\n\nasync function run() {\n try {\n await setupAndRun();\n } catch (e) {\n handleError(e);\n }\n}\n\nasync function setupAndRun() {\n // Commander is not available yet\n\n // when we run `config`, we don't want to output anything to the console. We\n // expect it to return valid JSON\n if (process.argv.includes('config')) {\n logger.disable();\n }\n\n logger.setVerbose(process.argv.includes('--verbose'));\n\n // We only have a setup script for UNIX envs currently\n if (process.platform !== 'win32') {\n const scriptName = 'setup_env.sh';\n const absolutePath = path.join(__dirname, '..', scriptName);\n\n try {\n childProcess.execFileSync(absolutePath, {stdio: 'pipe'});\n } catch (error) {\n logger.warn(\n `Failed to run environment setup script \"${scriptName}\"\\n\\n${chalk.red(\n error,\n )}`,\n );\n logger.info(\n `React Native CLI will continue to run if your local environment matches what React Native expects. If it does fail, check out \"${absolutePath}\" and adjust your environment to match it.`,\n );\n }\n }\n\n for (const command of detachedCommands) {\n attachCommand(command);\n }\n\n try {\n const config = loadConfig();\n\n logger.enable();\n\n for (const command of [...projectCommands, ...config.commands]) {\n attachCommand(command, config);\n }\n } catch (error) {\n /**\n * When there is no `package.json` found, the CLI will enter `detached` mode and a subset\n * of commands will be available. That's why we don't throw on such kind of error.\n */\n if (error.message.includes(\"We couldn't find a package.json\")) {\n logger.debug(error.message);\n logger.debug(\n 'Failed to load configuration of your project. Only a subset of commands will be available.',\n );\n } else {\n throw new CLIError(\n 'Failed to load configuration of your project.',\n error,\n );\n }\n }\n\n program.parse(process.argv);\n}\n\nconst bin = require.resolve('./bin');\n\nexport {run, bin, loadConfig};\n"]} |