Merge pull request #2087 from xodio/fix-one-settings-file-for-all-processes

Fix: configure electron-settings for all kinds of processes

packages/xod-client-electron/src/app/main.js

@@ -35,6 +35,8 @@ import {
   IS_DEV,
   getFilePathToOpen,
   getPathToBundledWorkspace,
+  setUserDataArg,
+  getUserDataDir,
 } from './utils';
 import * as WA from './workspaceActions';
 import {
@@ -61,12 +63,8 @@ app.setName('xod');
 
 configureAutoUpdater(autoUpdater, log);
 
-// to ensure compatibility with the old default
-settings.rewriteElectronSettingsFileName('Settings');
-
 if (process.env.USERDATA_DIR) {
   app.setPath('userData', process.env.USERDATA_DIR);
-  settings.rewriteElectronSettingsFilePath(app.getPath('userData'));
 }
 
 if (IS_DEV) {
@@ -119,6 +117,7 @@ function createWindow() {
       contextIsolation: false,
       additionalArguments: [
         IS_DEV ? 'ELECTRON_IS_DEV' : 'ELECTRON_IS_PACKAGED',
+        setUserDataArg(getUserDataDir()),
       ],
     },
   });

packages/xod-client-electron/src/app/settings.js

@@ -1,6 +1,8 @@
 import * as R from 'ramda';
 import electronSettings from 'electron-settings';
 
+import { getUserDataDir } from './utils';
+
 // =============================================================================
 //
 // Default settings object
@@ -15,22 +17,17 @@ export const DEFAULT_SETTINGS = {
 
 // =============================================================================
 //
-// Unpure save / load / setDefaults settings
+// Configure settings file
+//
+// The `electron-settings` pakage creates a `config` variable to store paths and
+// file names in it. So separate processes, like main process and renderer
+// will have the separate instances of this variable.
+// To achieve the same data in all processes, we use utility `getUserDataDir`
+// and will set the correct config for `electron-settings` every time we call to
+// load or save the settings file.
 //
 // =============================================================================
 
-// TODO: Add catching broken settings (if user opens settings file and break it)
-//       On catch — show error to user and fallback to default settings.
-export const load = () => R.merge(DEFAULT_SETTINGS, electronSettings.getSync());
-
-// TODO: Add schema and validating on save to prevent errors
-export const save = settings => electronSettings.setSync(settings);
-
-export const setDefaults = R.compose(
-  R.when(R.isEmpty, () => save(DEFAULT_SETTINGS)),
-  load
-);
-
 /**
  * To make settings path changeble in dependency of env varialbe (E.G. for functional tests)
  * we have to call this function before electron app onReady called.
@@ -48,6 +45,36 @@ export const rewriteElectronSettingsFileName = fileName => {
   });
 };
 
+const ensureSettingsFileConfiguration = () => {
+  // to ensure compatibility with the old default
+  rewriteElectronSettingsFileName('Settings');
+  rewriteElectronSettingsFilePath(getUserDataDir());
+};
+
+// =============================================================================
+//
+// Unpure save / load / setDefaults settings
+//
+// =============================================================================
+
+// TODO: Add catching broken settings (if user opens settings file and break it)
+//       On catch — show error to user and fallback to default settings.
+export const load = () => {
+  ensureSettingsFileConfiguration();
+  return R.merge(DEFAULT_SETTINGS, electronSettings.getSync());
+};
+
+// TODO: Add schema and validating on save to prevent errors
+export const save = settings => {
+  ensureSettingsFileConfiguration();
+  return electronSettings.setSync(settings);
+};
+
+export const setDefaults = R.compose(
+  R.when(R.isEmpty, () => save(DEFAULT_SETTINGS)),
+  load
+);
+
 // =============================================================================
 //
 // Workspace setters & getters

packages/xod-client-electron/src/app/utils.js

@@ -10,6 +10,27 @@ export const IS_DEV =
     ? process.argv.includes('ELECTRON_IS_DEV')
     : !electron.app.isPackaged) || process.env.NODE_ENV === 'development';
 
+const USERDATA_ARGNAME = '--userdata-dir=';
+
+// Utility to set the user data directory arguments for the renerer processes
+// from the main process on creating a renderer.
+export const setUserDataArg = userDataDir =>
+  `${USERDATA_ARGNAME}${userDataDir}`;
+
+export const getUserDataDir = () =>
+  process.type === 'renderer'
+    ? R.compose(
+        R.slice(USERDATA_ARGNAME.length, Infinity),
+        R.find(arg => arg.startsWith(USERDATA_ARGNAME))
+      )(process.argv)
+    : process.env.USERDATA_DIR || electron.app.getPath('userData');
+
+// =============================================================================
+//
+// IPC
+//
+// =============================================================================
+
 // for IPC. see https://electron.atom.io/docs/api/remote/#remote-objects
 // if we don't do this, we get empty objects on the other side instead of errors
 export const errorToPlainObject = R.when(
@@ -17,6 +38,12 @@ export const errorToPlainObject = R.when(
   R.converge(R.pick, [Object.getOwnPropertyNames, R.identity])
 );
 
+// =============================================================================
+//
+// Cross-platform
+//
+// =============================================================================
+
 /**
  * It provides one iterface for getting file path, that
  * should be opened on start-up (if User opens associated file),
@@ -58,6 +85,8 @@ export const getFilePathToOpen = app => {
   return () => pathToOpen;
 };
 
+// =============================================================================
+
 /**
  * Returns Path to the resources directory root.
  *