nixpkgs/pkgs/development/tools/yarn2nix-moretea/yarn2nix/bin/yarn2nix.js
2022-10-26 19:30:06 -05:00

90 lines
2.6 KiB
JavaScript
Executable file

#!/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
let pkgs = R.pipe(
mapObjIndexedReturnArray((value, key) => ({
...value,
nameWithVersion: key
})),
R.uniqBy(R.prop("resolved"))
)(json.object);
(async () => {
if (!options["--no-patch"]) {
pkgs = await Promise.all(R.map(fixPkgAddMissingSha1, pkgs));
}
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(pkgs, options["--builtin-fetchgit"]));
}
})().catch(error => {
console.error(error);
process.exit(1);
});