XasCode/terrafile-backend-lib

import { Path, Status, FetchParams } from '../../types';
import { cloneRepoToDest } from './cloneRepo';
import type { ModulesKeyType } from '../../moduleSources';
import { startsWith } from './startsWith';

type TestableTypes = {
  replacePathIfPathParam: (_source: Path, _repoPath: Path) => Path;
  replaceUrlVersionIfVersionParam: (_source: Path, _version: string) => Path;
};

type GitModuleTypes = {
  fetch: (_fp: FetchParams) => Promise<Status>;
  match: (_source: Path) => ModulesKeyType | ``;
  testable: TestableTypes;
  replaceUrlVersionIfVersionParam: (_source: Path, _version: string) => Path;
  replacePathIfPathParam: (_source: Path, _repoPath: Path) => Path;
};

function Git(matchStart?: string, sourceType?: ModulesKeyType): GitModuleTypes {
  function replaceUrlVersionIfVersionParam(source: Path, version: string): Path {
    return version ? [source.split(`?ref=`)[0], version].join(`?ref=`) : source;
  }

  function replacePathIfPathParam(source: Path, repoPath: Path): Path {
    const [beforeGit, afterGit] = source.split(`.git`);
    const newAfterGit = afterGit || ``;
    const [beforeQref, afterQref] = newAfterGit.split(`?ref=`);
    const newQrefPart = afterQref ? `?ref=${afterQref}` : ``;
    const [beforePathSep, afterPathSep] = beforeQref.split(`//`);
    const newPathPart = afterPathSep ? `//${afterPathSep}` : ``;
    const newPath = repoPath ? `/${repoPath}` : newPathPart;
    return `${beforeGit}${source.includes(`.git`) ? `.git` : ``}${beforePathSep}${newPath}${newQrefPart}`;
  }

  async function fetch({ params, dest, cloner, fsHelpers }: FetchParams): Promise<Status> {
    const newUrl = replaceUrlVersionIfVersionParam(params.source, params.version);
    const regRepoUrl = replacePathIfPathParam(newUrl, params.path);
    return cloneRepoToDest(regRepoUrl, dest, cloner, fsHelpers);
  }

  const testable = {
    replacePathIfPathParam,
    replaceUrlVersionIfVersionParam,
  };

  function match(source: Path): ModulesKeyType | `` {
    return startsWith(source, matchStart) ? sourceType : ``;
  }

  return { fetch, match, testable, replaceUrlVersionIfVersionParam, replacePathIfPathParam };
}

export default Git;