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app.js
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app.js
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const rp = require("request-promise");
const { writeFileSync, mkdirSync, existsSync } = require("fs");
const { exec, execSync } = require("child_process");
const rimraf = require("rimraf");
const { npmModules, earliestVersion } = require("./config");
(async function() {
if (!existsSync("./packages")) {
mkdirSync("./packages");
}
for (const npmModule of npmModules) {
const body = await rp({
uri: `https://registry.npmjs.org/${npmModule.replace('/', '%2F')}`,
json: true
});
for (const version in body.time) {
if (["modified", "created"].includes(version)) continue;
if (version.toUpperCase() !== version) continue;
if (new Date(body.time[version]) < earliestVersion) continue;
createDirectoryForVersion(npmModule, version, body.time[version]);
}
}
})();
function ensureDirectoryExists(directory) {
if (!existsSync(directory)) {
mkdirSync(directory);
console.log(`creating directory`, directory);
}
}
function createDirectoryForVersion(name, version, time) {
const baseDirectory = `./packages/${name}`;
const directory = `${baseDirectory}/${version}`;
if(name.startsWith('@')) {
const [scope] = name.split('/');
ensureDirectoryExists(`./packages/${scope}`);
}
ensureDirectoryExists(baseDirectory);
ensureDirectoryExists(directory);
const packageJson = {
dependencies: {
[name]: version
}
};
if (existsSync(`${directory}/package-lock.json`)) {
console.log(`skipping package ${name}@${version}...`);
return;
}
console.log(`processing package ${name}@${version}...`);
writeFileSync(
`${directory}/package.json`,
JSON.stringify(packageJson, null, 2)
);
npmInstall(true);
function npmInstall(sync) {
if (sync) {
try {
execSync("npm install", { cwd: directory, stdio: [0,1,2] });
console.info(`installed dependencies for ${name}@${version}`);
rimraf.sync(`${directory}/node_modules`);
} catch (error) {
console.error(`failed to install dependencies for ${name}@${version}`);
}
} else {
exec("npm install", { cwd: directory }, (error, sdtout, sdterr) => {
if (error) {
console.error(
`failed to install dependencies for ${name}@${version}`,
error
);
return;
}
console.info(`installed dependencies for ${name}@${version}`);
rimraf.sync(`${directory}/node_modules`);
});
}
}
}