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#!/usr/bin/env node
const fs = require('fs')
const lockfile = require('@yarnpkg/lockfile')
const { docopt } = require('docopt')
const deepEqual = require('deep-equal')
const R = require('ramda')
const fixPkgAddMissingSha1 = require('../lib/fixPkgAddMissingSha1')
const mapObjIndexedReturnArray = require('../lib/mapObjIndexedReturnArray')
const generateNix = require('../lib/generateNix')
const USAGE = `
Usage: yarn2nix [options]
Options:
-h --help Shows this help.
--no-nix Hide the nix output
--no-patch Don't patch the lockfile if hashes are missing
--lockfile=FILE Specify path to the lockfile [default: ./yarn.lock].
--builtin-fetchgit Use builtin fetchGit for git dependencies to support on-the-fly generation of yarn.nix without an internet connection
`
const options = docopt(USAGE)
const data = fs.readFileSync(options['--lockfile'], 'utf8')
// json example:
// {
// type:'success',
// object:{
// 'abbrev@1':{
// version:'1.0.9',
// resolved:'https://registry.yarnpkg.com/abbrev/-/abbrev-1.0.9.tgz#91b4792588a7738c25f35dd6f63752a2f8776135'
// },
// 'shell-quote@git+https://github.com/srghma/node-shell-quote.git#without_unlicenced_jsonify':{
// version:'1.6.0',
// resolved:'git+https://github.com/srghma/node-shell-quote.git#0aa381896e0cd7409ead15fd444f225807a61e0a'
// },
// '@graphile/plugin-supporter@git+https://1234user:1234pass@git.graphile.com/git/users/1234user/postgraphile-supporter.git':{
// version:'1.6.0',
// resolved:'git+https://1234user:1234pass@git.graphile.com/git/users/1234user/postgraphile-supporter.git#1234commit'
// },
// }
// }
const json = lockfile.parse(data)
if (json.type !== 'success') {
throw new Error('yarn.lock parse error')
}
// Check for missing hashes in the yarn.lock and patch if necessary
const pkgs = R.pipe(
mapObjIndexedReturnArray((value, key) => ({
...value,
nameWithVersion: key,
})),
R.uniqBy(R.prop('resolved')),
)(json.object)
const fixedPkgsPromises = R.map(fixPkgAddMissingSha1, pkgs)
;(async () => {
const fixedPkgs = await Promise.all(fixedPkgsPromises)
const origJson = lockfile.parse(data)
if (!deepEqual(origJson, json)) {
console.error('found changes in the lockfile', options['--lockfile'])
if (options['--no-patch']) {
console.error('...aborting')
process.exit(1)
}
fs.writeFileSync(options['--lockfile'], lockfile.stringify(json.object))
}
if (!options['--no-nix']) {
// print to stdout
console.log(generateNix(fixedPkgs, options['--builtin-fetchgit']))
}
})().catch(error => {
console.error(error)
process.exit(1)
})
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