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Bootstrap with Yarn when available (facebook#2673)
* Bootstrap with Yarn if we can * Update test scripts * Check OS and npm concurrency ability * Windows support * Update bootstrap.js * Install yarn before bootstrap
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,67 @@ | ||
'use strict'; | ||
|
||
const { execSync, spawn } = require('child_process'); | ||
const { resolve } = require('path'); | ||
const { existsSync } = require('fs'); | ||
const { platform } = require('os'); | ||
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function shouldUseYarn() { | ||
try { | ||
execSync('yarnpkg --version', { stdio: 'ignore' }); | ||
return true; | ||
} catch (e) { | ||
return false; | ||
} | ||
} | ||
|
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function shouldUseNpmConcurrently() { | ||
try { | ||
const versionString = execSync('npm --version'); | ||
const m = /^(\d+)[.]/.exec(versionString); | ||
// NPM >= 5 support concurrent installs | ||
return Number(m[1]) >= 5; | ||
} catch (e) { | ||
return false; | ||
} | ||
} | ||
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const yarn = shouldUseYarn(); | ||
const windows = platform() === 'win32'; | ||
const lerna = resolve( | ||
__dirname, | ||
'node_modules', | ||
'.bin', | ||
windows ? 'lerna.cmd' : 'lerna' | ||
); | ||
|
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if (!existsSync(lerna)) { | ||
if (yarn) { | ||
console.log('Cannot find lerna. Please run `yarn --check-files`.'); | ||
} else { | ||
console.log( | ||
'Cannot find lerna. Please remove `node_modules` and run `npm install`.' | ||
); | ||
} | ||
process.exit(1); | ||
} | ||
|
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let child; | ||
if (yarn) { | ||
// Yarn does not support concurrency | ||
child = spawn(lerna, ['bootstrap', '--npm-client=yarn', '--concurrency=1'], { | ||
stdio: 'inherit', | ||
}); | ||
} else { | ||
let args = ['bootstrap']; | ||
if ( | ||
// The Windows filesystem does not handle concurrency well | ||
windows || | ||
// Only newer npm versions support concurrency | ||
!shouldUseNpmConcurrently() | ||
) { | ||
args.push('--concurrency=1'); | ||
} | ||
child = spawn(lerna, args, { stdio: 'inherit' }); | ||
} | ||
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child.on('close', code => process.exit(code)); |
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