binstub.js.mustache

#!/usr/bin/env node
var path = require("path");
var spawn = require("child_process").spawn;
var fs = require("fs");

var os = process.env.BINWRAP_PLATFORM || process.platform;
var arch = process.env.BINWRAP_ARCH || process.arch;

var requested = os + "-" + arch;
var current = process.platform + "-" + process.arch;
if (requested !== current ) {
  console.error("WARNING: Using binaries for the requested platform (" + requested + ") instead of for the actual platform (" + current + ").")
}

var binExt = "";
if (os == "win32") {
  binExt = ".exe";
}

var unpackedBinPath = path.join(__dirname, "..", "unpacked_bin");
var binPath = path.join(unpackedBinPath, {{ binName }} + binExt);

function execBin() {
  spawn(
    binPath,
    process.argv.slice(2),
    {stdio: 'inherit'}
  ).on('exit', process.exit);
}

if (fs.existsSync(binPath)) {
  execBin();
} else {
  console.error("INFO: Running " + path.basename(__filename) + " for the first time; downloading the actual binary");

  var packageInfo = require(path.join(__dirname, "..", "package.json"));
  var package = require(path.join(__dirname, "..", packageInfo.main));

  package.install(unpackedBinPath, os, arch).then(function(result) {
    execBin();
  }, function(err) {
    console.log("ERR", err);
    process.exit(1);
  });
}