nixpkgs/pkgs/development/tools/yarn2nix-moretea/yarn2nix/internal/fixup_yarn_lock.js
2019-07-25 17:15:00 +02:00

50 lines
1.1 KiB
JavaScript
Executable file

#!/usr/bin/env node
/* Usage:
* node fixup_yarn_lock.js yarn.lock
*/
const fs = require('fs')
const readline = require('readline')
const urlToName = require('../lib/urlToName')
const yarnLockPath = process.argv[2]
const readFile = readline.createInterface({
input: fs.createReadStream(yarnLockPath, { encoding: 'utf8' }),
// Note: we use the crlfDelay option to recognize all instances of CR LF
// ('\r\n') in input.txt as a single line break.
crlfDelay: Infinity,
terminal: false, // input and output should be treated like a TTY
})
const result = []
readFile
.on('line', line => {
const arr = line.match(/^ {2}resolved "([^#]+)#([^"]+)"$/)
if (arr !== null) {
const [_, url, shaOrRev] = arr
const fileName = urlToName(url)
result.push(` resolved "${fileName}#${shaOrRev}"`)
} else {
result.push(line)
}
})
.on('close', () => {
fs.writeFile(yarnLockPath, result.join('\n'), 'utf8', err => {
if (err) {
console.error(
'fixup_yarn_lock: fatal error when trying to write to yarn.lock',
err,
)
}
})
})