Get positron working again:

- add back positronBinding and atomBinding
  - use upstream electron common/reset-search-path.js to work with newer node

lib/browser/init.js

@@ -118,7 +118,11 @@ require('./guest-window-manager');
 
 // Now we try to load app's package.json.
 var packageJson = null;
-var searchPaths = ['app', 'app.asar', 'default_app'];
+// Electron launches it's app that in turn launches the command line app.
+// Positron directly launches the app for now so we have to add '' to the search
+// path to look in the current directory.
+// TODO: launch electron app?
+var searchPaths = ['', 'app', 'app.asar', 'default_app'];
 var i, len, packagePath;
 for (i = 0, len = searchPaths.length; i < len; i++) {
   packagePath = searchPaths[i];
@@ -172,11 +176,13 @@ app.setPath('userCache', path.join(app.getPath('cache'), app.getName()));
 
 app.setAppPath(packagePath);
 
+// TODO: figure out how we want to load extensions
 // Load the chrome extension support.
-require('./chrome-extension');
+// require('./chrome-extension');
 
+// TODO: figure out how we implement desktop capturer
 // Load internal desktop-capturer module.
-require('./desktop-capturer');
+// require('./desktop-capturer');
 
 // Set main startup script of the app.
 var mainStartupScript = packageJson.main || 'index.js';

lib/common/init.js

@@ -1,20 +1,19 @@
-const path = require('path');
 const timers = require('timers');
-const Module = require('module');
 
-process.atomBinding = function(name) {
-  try {
-    return process.binding("atom_" + process.type + "_" + name);
-  } catch (error) {
-    if (/No such module/.test(error.message)) {
-      return process.binding("atom_common_" + name);
+if (process.type === 'browser') {
+  process.positronBinding = function(name) {
+    return require("../../../modules/" + name);
+  };
+
+  process.atomBinding = function(name) {
+    try {
+      return require("../../../modules/atom_" + process.type + "_" + name);
+    } catch (error) {
+      if (/Cannot find module/.test(error.message)) {
+        return require("../../../modules/atom_common_" + name);
+      }
     }
-  }
-};
-
-if (!process.env.ELECTRON_HIDE_INTERNAL_MODULES) {
-  // Add common/api/lib to module search paths.
-  Module.globalPaths.push(path.join(__dirname, 'api'));
+  };
 }
 
 
@@ -26,7 +25,8 @@ if (!process.env.ELECTRON_HIDE_INTERNAL_MODULES) {
 // called.
 var wrapWithActivateUvLoop = function(func) {
   return function() {
-    process.activateUvLoop();
+    // TODO: add a binding to do this
+    // process.activateUvLoop();
     return func.apply(this, arguments);
   };
 };

lib/common/reset-search-paths.js

@@ -1,36 +1,37 @@
-const path = require('path');
-const Module = require('module');
+const path = require('path')
+const Module = require('module')
 
 // Clear Node's global search paths.
-Module.globalPaths.length = 0;
+Module.globalPaths.length = 0
 
-// Clear current and parent(init.coffee)'s search paths.
-module.paths = [];
-
-module.parent.paths = [];
+// Clear current and parent(init.js)'s search paths.
+module.paths = []
+module.parent.paths = []
 
 // Prevent Node from adding paths outside this app to search paths.
-Module._nodeModulePaths = function(from) {
-  var dir, i, part, parts, paths, skipOutsidePaths, splitRe, tip;
-  from = path.resolve(from);
-
+const resourcesPathWithTrailingSlash = process.resourcesPath + path.sep
+const originalNodeModulePaths = Module._nodeModulePaths
+Module._nodeModulePaths = function (from) {
+  const paths = originalNodeModulePaths(from)
+  const fromPath = path.resolve(from) + path.sep
   // If "from" is outside the app then we do nothing.
-  skipOutsidePaths = from.startsWith(process.resourcesPath);
-
-  // Following logoic is copied from module.js.
-  splitRe = process.platform === 'win32' ? /[\/\\]/ : /\//;
-  paths = [];
-  parts = from.split(splitRe);
-  for (tip = i = parts.length - 1; i >= 0; tip = i += -1) {
-    part = parts[tip];
-    if (part === 'node_modules') {
-      continue;
-    }
-    dir = parts.slice(0, tip + 1).join(path.sep);
-    if (skipOutsidePaths && !dir.startsWith(process.resourcesPath)) {
-      break;
-    }
-    paths.push(path.join(dir, 'node_modules'));
+  if (fromPath.startsWith(resourcesPathWithTrailingSlash)) {
+    return paths.filter(function (candidate) {
+      return candidate.startsWith(resourcesPathWithTrailingSlash)
+    })
+  } else {
+    return paths
   }
-  return paths;
-};
+}
+
+// Patch Module._resolveFilename to always require the Electron API when
+// require('electron') is done.
+const electronPath = path.join(__dirname, '..', process.type, 'api', 'exports', 'electron.js')
+const originalResolveFilename = Module._resolveFilename
+Module._resolveFilename = function (request, parent, isMain) {
+  if (request === 'electron') {
+    return electronPath
+  } else {
+    return originalResolveFilename(request, parent, isMain)
+  }
+}