@speedscale/proxymock/lib/version.js

A free desktop CLI that automatically creates mocks and tests from watching your app run.

import { spawn } from "child_process";
import { join, dirname } from "path";
import { readFileSync } from "fs";
import { fileURLToPath } from "url";
import logger from "../lib/log.js";
import { INSTALLROOT, binaryPath } from "./constants.js";

/**
 * Reads the npm package version from package.json
 * @returns {string} The version string (e.g., "2.3.660")
 */
export function getPackageVersion() {
  try {
    const __dirname = dirname(fileURLToPath(import.meta.url));
    const packageJson = JSON.parse(
      readFileSync(join(__dirname, "..", "package.json"), "utf8"),
    );
    if (!packageJson.version) {
      throw new Error("No version found in package.json");
    }
    return packageJson.version;
  } catch (error) {
    throw new Error(`Failed to read package version: ${error.message}`);
  }
}

/**
 * Retrieves the version of the installed proxymock binary
 * @returns {Promise<string|null>} The installed version (e.g., "v2.3.660") or null if unable to determine
 */
export async function getInstalledVersion() {
  return new Promise((resolve) => {
    const child = spawn(binaryPath, [
      "version",
      "--client",
      "--output",
      "pretty",
    ]);

    let stdout = "";
    child.stdout.on("data", (data) => {
      stdout += data.toString();
    });

    child.on("exit", (code) => {
      if (code !== 0) {
        logger.error(`Failed to get proxymock version - exit code: ${code}`);
        resolve(null);
        return;
      }

      // With --output pretty, it just prints the version string directly
      const version = stdout.trim();
      resolve(version);
    });

    child.on("error", (err) => {
      logger.error(
        `Error spawning proxymock for version check: ${err.message}`,
      );
      resolve(null);
    });
  });
}