refactor: scope clear module to project modules only

package.json

@@ -95,6 +95,7 @@
     "minimatch": "^3.0.4",
     "patch-package": "^6.4.7",
     "prettier": "^2.1.1",
+    "parent-module": "^2.0.0",
     "raw-loader": "^4.0.2",
     "semantic-release": "^17.4.3",
     "typescript": "^4.2.4",

src/preview/CodeProvider.ts

@@ -1,6 +1,6 @@
 import { AndroidConfig, XML } from '@expo/config-plugins';
 import plist from '@expo/plist';
-import * as clearModule from 'clear-module';
+import { clearProjectModules } from '../utils/clearModule';
 import * as path from 'path';
 import * as vscode from 'vscode';
 import { window } from 'vscode';
@@ -151,7 +151,8 @@ export class CodeProvider implements vscode.TextDocumentContentProvider {
   async update(): Promise<void> {
     try {
       // Reset all requires to ensure plugins update
-      clearModule.all();
+      clearProjectModules(this.projectRoot);
+
       this.fileContents = this.formatWithLanguage(await this.getFileContents());
     } catch (error) {
       this.fileContents = '';

src/utils/clearModule.ts

@@ -0,0 +1,64 @@
+import parentModule from 'parent-module';
+import * as path from 'path';
+import resolveFrom from 'resolve-from';
+
+const resolve = (moduleId: string) => {
+  try {
+    return resolveFrom(path.dirname(parentModule(__filename)!), moduleId);
+  } catch {}
+};
+
+const clear = (moduleId: string) => {
+  if (typeof moduleId !== 'string') {
+    throw new TypeError(`Expected a \`string\`, got \`${typeof moduleId}\``);
+  }
+
+  const filePath = resolve(moduleId);
+
+  if (!filePath) {
+    return;
+  }
+
+  // Delete itself from module parent
+  if (require.cache[filePath] && require.cache[filePath]?.parent) {
+    let i = require.cache[filePath]!.parent!.children.length;
+
+    while (i--) {
+      if (require.cache[filePath]!.parent!.children[i].id === filePath) {
+        require.cache[filePath]!.parent!.children.splice(i, 1);
+      }
+    }
+  }
+
+  // Remove all descendants from cache as well
+  if (require.cache[filePath]) {
+    const { children } = require.cache[filePath]!;
+
+    // Delete module from cache
+    delete require.cache[filePath];
+
+    for (const { id } of children) {
+      clear(id);
+    }
+  }
+};
+
+export function clearProjectModules(projectRoot: string) {
+  const directory = path.dirname(parentModule(__filename)!);
+
+  //   for (const moduleId of Object.keys(require.cache)) {
+  //     console.log(resolveFrom(directory, moduleId));
+  //   }
+
+  for (const moduleId of Object.keys(require.cache)) {
+    if (
+      // Module is inside of project root
+      moduleId.includes(projectRoot) &&
+      // Ignore modules inside of node_modules
+      !/node_modules/.test(moduleId)
+    ) {
+      console.log(resolveFrom(directory, moduleId));
+      clear(moduleId);
+    }
+  }
+}