plugin-preloader/src/getEntitiesMapWithVersions.ts

This library dynamically preloads and installs Babel and ESLint plugins and presets based on your configuration, streamlining the build process without the need to include them as dependencies in your project.

import { Entity, Map, MapWithVersions, Name } from "./types";
import { resolve } from "path";
import log from "fancy-log";
import { wrappers } from "./utils";

function getEntitiesMapWithVersions(entities: Entity[], entitiesMap: Map): MapWithVersions {
  const mapWithVersions: MapWithVersions = {};
  for (const entity of entities) {
    const name: Name = Array.isArray(entity) ? entity[0] : entity;
    try {
      const { nameInRegistry } = entitiesMap[name];
      mapWithVersions[name] = {
        nameInRegistry,
        desiredVersion: Array.isArray(entity) ? entity[1] : "latest",
      };
      const currentDir = process.cwd();
      const packagePath = resolve(currentDir, "node_modules", nameInRegistry);
      const packageIsInstalled = wrappers.syncExists(packagePath);
      if (packageIsInstalled) {
        const { version } = require(packagePath + "/package.json");
        mapWithVersions[name].currentVersion = version;
        if (mapWithVersions[name].desiredVersion === "latest") {
          const command = `npm view ${nameInRegistry} version`;
          const remoteVersion = wrappers.syncExec(command, { encoding: "utf8" });
          mapWithVersions[name].desiredVersion = remoteVersion.trim();
        }
      }
    } catch (e) {
      delete mapWithVersions[name];
      log.error(`Plugin ${name} is not handled yet.`);
    }
  }
  return mapWithVersions;
}

export default getEntitiesMapWithVersions;