common.ts

import is from '@sindresorhus/is';
import { logger } from '../../logger';
import { filterMap } from '../../util/filter-map';
import { regEx } from '../../util/regex';
import { defaultVersioning } from '../versioning';
import * as allVersioning from '../versioning';
import datasources from './api';
import { CustomDatasource } from './custom';
import type {
  DatasourceApi,
  GetPkgReleasesConfig,
  ReleaseResult,
} from './types';

export function getDatasourceFor(datasource: string): DatasourceApi | null {
  if (datasource?.startsWith('custom.')) {
    return getDatasourceFor(CustomDatasource.id);
  }
  return datasources.get(datasource) ?? null;
}

export function getDefaultVersioning(
  datasourceName: string | undefined
): string {
  if (!datasourceName) {
    return defaultVersioning.id;
  }

  const datasource = getDatasourceFor(datasourceName);

  if (!datasource) {
    logger.warn({ datasourceName }, 'Missing datasource!');
    return defaultVersioning.id;
  }

  if (!datasource.defaultVersioning) {
    return defaultVersioning.id;
  }

  return datasource.defaultVersioning;
}

export function isGetPkgReleasesConfig(
  input: unknown
): input is GetPkgReleasesConfig {
  return (
    is.nonEmptyStringAndNotWhitespace(
      (input as GetPkgReleasesConfig).datasource
    ) &&
    is.nonEmptyStringAndNotWhitespace(
      (input as GetPkgReleasesConfig).packageName
    )
  );
}

export function applyExtractVersion(
  releaseResult: ReleaseResult,
  extractVersion: string | undefined
): ReleaseResult {
  if (!extractVersion) {
    return releaseResult;
  }

  const extractVersionRegEx = regEx(extractVersion);
  releaseResult.releases = filterMap(releaseResult.releases, (release) => {
    const version = extractVersionRegEx.exec(release.version)?.groups?.version;
    if (!version) {
      return null;
    }