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/* eslint-disable import/no-extraneous-dependencies */
import { yellow } from 'picocolors'
import spawn from 'cross-spawn'
interface InstallArgs {
/**
* Indicate whether to install packages using Yarn.
*/
useYarn: boolean
/**
* Indicate whether there is an active Internet connection.
*/
isOnline: boolean
/**
* Indicate whether the given dependencies are devDependencies.
*/
devDependencies?: boolean
}
/**
* Spawn a package manager installation with either Yarn or NPM.
*
* @returns A Promise that resolves once the installation is finished.
*/
export function install(
root: string,
dependencies: string[] | null,
{ useYarn, isOnline, devDependencies }: InstallArgs
): Promise<void> {
/**
* NPM-specific command-line flags.
*/
const npmFlags: string[] = ['--logLevel', 'error']
/**
* Yarn-specific command-line flags.
*/
const yarnFlags: string[] = []
/**
* Return a Promise that resolves once the installation is finished.
*/
return new Promise((resolve, reject) => {
let args: string[]
let command: string = 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']
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']
args.push(devDependencies ? '--save-dev' : '--save')
args.push(...dependencies)
}
} else {
/**
* If there are no dependencies, run a variation of `{displayCommand}
* install`.
*/
args = ['install']
if (!isOnline) {
console.log(yellow('You appear to be offline.'))
if (useYarn) {
console.log(yellow('Falling back to the local Yarn cache.'))
console.log()
args.push('--offline')
} else {
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()
})
})
}
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