create-web3
Version:
A boilerplate for creating a web3 projects
97 lines (93 loc) • 2.58 kB
JavaScript
/* eslint-disable import/no-extraneous-dependencies */
const chalk = require('chalk');
const spawn = require('cross-spawn');
/**
* Spawn a package manager installation with either Yarn or NPM.
*
* @returns A Promise that resolves once the installation is finished.
*/
const install = (
root,
dependencies,
{ useYarn, isOnline, devDependencies }
) => {
/**
* NPM-specific command-line flags.
*/
const npmFlags = [];
/**
* Yarn-specific command-line flags.
*/
const yarnFlags = [];
/**
* Return a Promise that resolves once the installation is finished.
*/
return new Promise((resolve, reject) => {
let args = [];
let command = useYarn ? 'yarnpkg' : 'npm';
if (dependencies && dependencies.length) {
/**
* If there are dependencies, run a variation of `{displayCommand} add`.
*/
if (useYarn) {
/**
* Call `yarn add --exact (--offline)? (-D)? ...`.
*/
args = ['add', '--exact', '--legacy-peer-deps'];
if (!isOnline) args.push('--offline');
args.push('--cwd', root);
if (devDependencies) args.push('--dev');
args.push(...dependencies);
} else {
/**
* Call `npm install [--save|--save-dev] ...`.
*/
args = ['install', '--save-exact', '--legacy-peer-deps'];
args.push(devDependencies ? '--save-dev' : '--save');
args.push(...dependencies);
}
} else {
/**
* If there are no dependencies, run a variation of `{displayCommand}
* install`.
*/
args = ['install'];
if (useYarn) {
if (!isOnline) {
console.log(chalk.yellow('You appear to be offline.'));
console.log(chalk.yellow('Falling back to the local Yarn cache.'));
console.log();
args.push('--offline');
}
} else {
if (!isOnline) {
console.log(chalk.yellow('You appear to be offline.'));
console.log();
}
}
}
/**
* Add any package manager-specific flags.
*/
if (useYarn) {
args.push(...yarnFlags);
} else {
args.push(...npmFlags);
}
/**
* Spawn the installation process.
*/
const child = spawn(command, args, {
stdio: 'inherit',
env: { ...process.env, ADBLOCK: '1', DISABLE_OPENCOLLECTIVE: '1' },
});
child.on('close', (code) => {
if (code !== 0) {
reject({ command: `${command} ${args.join(' ')}` });
return;
}
resolve();
});
});
};
exports.install = install;