@vscode/gulp-electron/src/linux.js

gulp plugin for packaging Electron into VS Code

"use strict";

var path = require("path");
var es = require("event-stream");
var rename = require("gulp-rename");
var semver = require("semver");

function getOriginalAppName(opts) {
  return semver.gte(opts.version, "0.24.0") ? "electron" : "atom";
}

exports.getAppPath = function (opts) {
  return "resources/app";
};

function removeDefaultApp() {
  var defaultAppPath = path.join("resources", "default_app");

  return es.mapSync(function (f) {
    if (!f.relative.startsWith(defaultAppPath)) {
      return f;
    }
  });
}

function renameApp(opts) {
  return rename(function (path) {
    if (
      path.dirname === "." &&
      path.basename === getOriginalAppName(opts) &&
      path.extname === ""
    ) {
      path.basename = opts.linuxExecutableName || opts.productName;
    }
  });
}

/**
 * For Electron versions that support the setuid sandbox on Linux, changes the permissions of
 * the `chrome-sandbox` executable as appropriate.
 *
 * The sandbox helper executable must have the setuid (`+s` / `0o4000`) bit set.
 *
 * See: https://github.com/electron/electron/pull/17269#issuecomment-470671914
 */
function updateSandboxHelperPermissions() {
  return es.mapSync(function (f) {
    if (!f.isNull() && !f.isDirectory() && f.path === "chrome-sandbox") {
      f.stat.mode = 0o4755;
    }
    return f;
  });
}

exports.patch = function (opts) {
  var pass = es.through();

  var src = pass
    .pipe(updateSandboxHelperPermissions())
    .pipe(opts.keepDefaultApp ? es.through() : removeDefaultApp())
    .pipe(renameApp(opts));

  return es.duplex(pass, src);
};