48 lines
1.3 KiB
TypeScript
48 lines
1.3 KiB
TypeScript
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import semver from "semver";
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import { getUrl } from "./geturl";
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import { Package, getPackage as _getPackage } from "./local";
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const cache: Record<string, any> = { };
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async function getPackageInfo(name: string): Promise<any> {
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// Convert dirname to package if needed
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name = _getPackage(name).name;
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if (!cache[name]) {
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try {
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const result = await getUrl("http:/" + "/registry.npmjs.org/" + name);
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cache[name] = JSON.parse(Buffer.from(result.body).toString("utf8"));
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} catch (error) {
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if (error.status === 404) { return null; }
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throw error;
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}
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}
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return cache[name] || null;
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}
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export async function getPackage(name: string, version?: string): Promise<Package> {
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const infos = await getPackageInfo(name);
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if (infos == null) { return null; }
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if (version == null) {
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const versions = Object.keys(infos.versions);
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versions.sort(semver.compare);
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version = versions.pop();
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}
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const info = infos.versions[version];
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return {
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dependencies: (info.dependencies || {}),
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devDependencies: (info.devDependencies || {}),
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location: "remote",
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name: info.name,
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tarballHash: info.tarballHash,
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version : info.version,
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_ethers_nobuild: !!info._ethers_nobuild,
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};
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}
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