lix-website/themes/lix/assets/bootstrap/node_modules/package-json/index.js
2024-04-26 22:49:34 -06:00

116 lines
2.7 KiB
JavaScript

'use strict';
const {URL} = require('url');
const {Agent: HttpAgent} = require('http');
const {Agent: HttpsAgent} = require('https');
const got = require('got');
const registryUrl = require('registry-url');
const registryAuthToken = require('registry-auth-token');
const semver = require('semver');
// These agent options are chosen to match the npm client defaults and help with performance
// See: `npm config get maxsockets` and #50
const agentOptions = {
keepAlive: true,
maxSockets: 50
};
const httpAgent = new HttpAgent(agentOptions);
const httpsAgent = new HttpsAgent(agentOptions);
class PackageNotFoundError extends Error {
constructor(packageName) {
super(`Package \`${packageName}\` could not be found`);
this.name = 'PackageNotFoundError';
}
}
class VersionNotFoundError extends Error {
constructor(packageName, version) {
super(`Version \`${version}\` for package \`${packageName}\` could not be found`);
this.name = 'VersionNotFoundError';
}
}
const packageJson = async (packageName, options) => {
options = {
version: 'latest',
...options
};
const scope = packageName.split('/')[0];
const registryUrl_ = options.registryUrl || registryUrl(scope);
const packageUrl = new URL(encodeURIComponent(packageName).replace(/^%40/, '@'), registryUrl_);
const authInfo = registryAuthToken(registryUrl_.toString(), {recursive: true});
const headers = {
accept: 'application/vnd.npm.install-v1+json; q=1.0, application/json; q=0.8, */*'
};
if (options.fullMetadata) {
delete headers.accept;
}
if (authInfo) {
headers.authorization = `${authInfo.type} ${authInfo.token}`;
}
const gotOptions = {
json: true,
headers,
agent: {
http: httpAgent,
https: httpsAgent
}
};
if (options.agent) {
gotOptions.agent = options.agent;
}
let response;
try {
response = await got(packageUrl, gotOptions);
} catch (error) {
if (error.statusCode === 404) {
throw new PackageNotFoundError(packageName);
}
throw error;
}
let data = response.body;
if (options.allVersions) {
return data;
}
let {version} = options;
const versionError = new VersionNotFoundError(packageName, version);
if (data['dist-tags'][version]) {
data = data.versions[data['dist-tags'][version]];
} else if (version) {
if (!data.versions[version]) {
const versions = Object.keys(data.versions);
version = semver.maxSatisfying(versions, version);
if (!version) {
throw versionError;
}
}
data = data.versions[version];
if (!data) {
throw versionError;
}
}
return data;
};
module.exports = packageJson;
// TODO: remove this in the next major version
module.exports.default = packageJson;
module.exports.PackageNotFoundError = PackageNotFoundError;
module.exports.VersionNotFoundError = VersionNotFoundError;