144 lines
3.4 KiB
JavaScript
Executable file
144 lines
3.4 KiB
JavaScript
Executable file
#!/usr/bin/env node
|
|
"use strict";
|
|
|
|
const crypto = require('crypto');
|
|
const fs = require("fs");
|
|
const https = require("https");
|
|
const path = require("path");
|
|
const util = require("util");
|
|
|
|
const lockfile = require("@yarnpkg/lockfile")
|
|
const docopt = require("docopt").docopt;
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
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].
|
|
`
|
|
|
|
const HEAD = `
|
|
{fetchurl, linkFarm}: rec {
|
|
offline_cache = linkFarm "offline" packages;
|
|
packages = [
|
|
`.trim();
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
function generateNix(lockedDependencies) {
|
|
let found = {};
|
|
|
|
console.log(HEAD)
|
|
|
|
for (var depRange in lockedDependencies) {
|
|
let dep = lockedDependencies[depRange];
|
|
|
|
let depRangeParts = depRange.split('@');
|
|
let [url, sha1] = dep["resolved"].split("#");
|
|
let file_name = path.basename(url)
|
|
|
|
if (found.hasOwnProperty(file_name)) {
|
|
continue;
|
|
} else {
|
|
found[file_name] = null;
|
|
}
|
|
|
|
|
|
console.log(`
|
|
{
|
|
name = "${file_name}";
|
|
path = fetchurl {
|
|
name = "${file_name}";
|
|
url = "${url}";
|
|
sha1 = "${sha1}";
|
|
};
|
|
}`)
|
|
}
|
|
|
|
console.log(" ];")
|
|
console.log("}")
|
|
}
|
|
|
|
|
|
function getSha1(url) {
|
|
return new Promise((resolve, reject) => {
|
|
https.get(url, (res) => {
|
|
const { statusCode } = res;
|
|
const hash = crypto.createHash('sha1');
|
|
if (statusCode !== 200) {
|
|
const err = new Error('Request Failed.\n' +
|
|
`Status Code: ${statusCode}`);
|
|
// consume response data to free up memory
|
|
res.resume();
|
|
reject(err);
|
|
}
|
|
|
|
res.on('data', (chunk) => { hash.update(chunk); });
|
|
res.on('end', () => { resolve(hash.digest('hex')) });
|
|
res.on('error', reject);
|
|
});
|
|
});
|
|
};
|
|
|
|
function updateResolvedSha1(pkg) {
|
|
// local dependency
|
|
if (!pkg.resolved) { return Promise.resolve(); }
|
|
let [url, sha1] = pkg.resolved.split("#", 2)
|
|
if (!sha1) {
|
|
return new Promise((resolve, reject) => {
|
|
getSha1(url).then(sha1 => {
|
|
pkg.resolved = `${url}#${sha1}`;
|
|
resolve();
|
|
}).catch(reject);
|
|
});
|
|
} else {
|
|
// nothing to do
|
|
return Promise.resolve();
|
|
};
|
|
}
|
|
|
|
function values(obj) {
|
|
var entries = [];
|
|
for (let key in obj) {
|
|
entries.push(obj[key]);
|
|
}
|
|
return entries;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Main
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
var options = docopt(USAGE);
|
|
|
|
let data = fs.readFileSync(options['--lockfile'], 'utf8')
|
|
let json = lockfile.parse(data)
|
|
if (json.type != "success") {
|
|
throw new Error("yarn.lock parse error")
|
|
}
|
|
|
|
// Check fore missing hashes in the yarn.lock and patch if necessary
|
|
var pkgs = values(json.object);
|
|
Promise.all(pkgs.map(updateResolvedSha1)).then(() => {
|
|
let newData = lockfile.stringify(json.object);
|
|
|
|
if (newData != data) {
|
|
console.error("found changes in the lockfile", options["--lockfile"]);
|
|
|
|
if (options["--no-patch"]) {
|
|
console.error("...aborting");
|
|
process.exit(1);
|
|
}
|
|
|
|
fs.writeFileSync(options['--lockfile'], newData);
|
|
}
|
|
|
|
if (!options['--no-nix']) {
|
|
generateNix(json.object);
|
|
}
|
|
})
|