Add uninstall hook script (cleanUp) (vscode-icons#1537)

package.json

@@ -235,6 +235,7 @@
         "posttest": "nyc report -r lcov",
         "test:vs": "node ./node_modules/vscode/bin/test",
         "vscode:prepublish": "npm run build",
+        "vscode:uninstall": "node ./out/src/uninstall.js",
         "precompile": "rimraf ./out",
         "compile": "tsc",
         "compile:w": "npm run compile -- -w",

src/cleanUp/index.ts

@@ -0,0 +1,52 @@
+import { readFile, writeFile, unlink } from 'fs';
+import { constants } from '../constants';
+import { vscodePath as getAppPath, parseJSON, pathUnixJoin } from '../utils';
+
+export function getAppUserPath(dirPath: string): string {
+  const isDev = /oss-dev/i.test(dirPath);
+  const isOSS = !isDev && /oss/i.test(dirPath);
+  const isInsiders = /insiders/i.test(dirPath);
+  const vscodeAppName = isInsiders ? 'Code - Insiders' : isOSS ? 'Code - OSS' : isDev ? 'code-oss-dev' : 'Code';
+  return pathUnixJoin(getAppPath(), vscodeAppName, 'User');
+}
+
+export function removeVSIconsSettings(settings: {}): void {
+  Reflect.ownKeys(settings)
+    .map(key => key.toString())
+    .filter(key => /^vsicons\..+/.test(key))
+    .forEach(key => delete settings[key]);
+}
+
+export function resetThemeSetting(settings: {}): void {
+  if (settings[constants.vscode.iconThemeSetting] === constants.extensionName) {
+    settings[constants.vscode.iconThemeSetting] = null;
+  }
+}
+
+export function cleanUpVSCodeSettings(): void {
+  const saveSettings = content => {
+    const settings = JSON.stringify(content, null, 4);
+    writeFile(settingsFilePath, settings, err => console.error(err));
+  };
+  const cleanUpSettings = (err, content) => {
+    if (err) {
+      console.error(err);
+      return;
+    }
+    const settings = parseJSON(content);
+    if (!settings) { return; }
+
+    removeVSIconsSettings(settings);
+
+    resetThemeSetting(settings);
+
+    saveSettings(settings);
+  };
+  const settingsFilePath = pathUnixJoin(getAppUserPath(__dirname), 'settings.json');
+  readFile(settingsFilePath, 'utf8', cleanUpSettings);
+}
+
+export function cleanUpVSIconsSettings(): void {
+  unlink(pathUnixJoin(getAppUserPath(__dirname), 'vsicons.settings.json'),
+    err => console.error(err));
+}

src/uninstall.ts

@@ -0,0 +1,4 @@
+import { cleanUpVSCodeSettings, cleanUpVSIconsSettings } from './cleanUp';
+
+cleanUpVSIconsSettings();
+cleanUpVSCodeSettings();