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import { LiteralUnion } from "./deps/types.ts";import { matchOne } from "./utils/match.ts";
export interface GitRepository {  site: string;  user: string | undefined;  name: string | undefined;  ref: LiteralUnion<"HEAD", string>;  url: string;  ssh: string;  subdirectory: string | undefined;  mode: "tar" | "git";}const GIT_URL_REGEX =  /^(?:(?:https:\/\/)?(?<urlSite>[^/:]+\.[^/:]+)\/|git@(?<gitSite>[^/:]+)[/:]|(?<namedSite>[^/]+):)?(?<user>[^\s/]+)\/(?<name>[^\s#/]+)(?:(?<subdirectory>(?:\/[^\s#/]+)+))?\/?(?:#(?<ref>.+))?/;
/** * From the provided string, extract the hostname and the path. * * Adapted from https://github.com/Rich-Harris/degit/blob/64b80577acf3313b669840f7452800ee8d09fbf3/src/index.js#L327-L364 */export function parseGitUrl(source: string): GitRepository | undefined {  const match = matchOne(source, GIT_URL_REGEX);
  if (!match) {    return;  }
  const { unnamed } = match;
  const site = (unnamed[0] || unnamed[1] || unnamed[2] || "github").replace(    /\.(com|org)$/,    "",  );
  if (!SUPPORTED.has(site)) {    return;  }
  const user = unnamed[3];  const name = unnamed[4]?.replace(/\.git$/, "");  const subdirectory = unnamed[5];  const ref = unnamed[6] || "HEAD";
  const domain = `${site}.${    site === "bitbucket" ? "org" : site === "git.sr.ht" ? "" : "com"  }`;  const url = `https://${domain}/${user}/${name}`;  const ssh = `git@${domain}:${user}/${name}`;  const mode = SUPPORTED.has(site) ? "tar" : "git";
  return { site, user, name, ref, url, ssh, subdirectory, mode };}
const SUPPORTED = new Set(["github", "gitlab", "bitbucket", "git.sr.ht"]);