copyPlatformBinaryInPlace.js

#!/usr/bin/env node

var fs = require("fs");

var arch = process.arch;
var platform = process.platform;

if (arch === "ia32") {
  arch = "x86";
}

if (platform === "win32") {
  platform = "win";
}

copyBinary(`exe/rescript-atdgen-generator-${platform}-${arch}.exe`, "atdgen");

function copyBinary(filename, destFilename) {
  var supported = fs.existsSync(filename);

  if (!supported) {
    console.error("rescript-atdgen-generator does not support this platform :(");
    console.error("");
    console.error(
      "rescript-atdgen-generator comes prepacked as built binaries to avoid large"
    );
    console.error("dependencies at build-time.");
    console.error("");
    console.error("If you want rescript-atdgen-generator to support this platform natively,");
    console.error(
      "please open an issue at our repository, linked above. Please"
    );
    console.error("specify that you are on the " + platform + " platform,");
    console.error("on the " + arch + " architecture.");

  }

  if (!fs.existsSync(destFilename)) {
    copyFileSync(filename, destFilename);
    fs.chmodSync(destFilename, 0755);
  }

  var destFilenameExe = destFilename + ".exe";
  if (!fs.existsSync(destFilenameExe)) {
    copyFileSync(filename, destFilenameExe);
    fs.chmodSync(destFilenameExe, 0755);
  }
}

function copyFileSync(source, dest) {
  if (typeof fs.copyFileSync === "function") {
    fs.copyFileSync(source, dest);
  } else {
    fs.writeFileSync(dest, fs.readFileSync(source));
  }
}