Fixed issue with finding metro modules

Author: Eric Lange

lib/Config.js

@@ -10,19 +10,32 @@ const fs = require('fs')
 const resolve = require('metro-resolver').resolve
 const here = fs.realpathSync.native(__dirname)
 const blacklist = require('metro-config/src/defaults/blacklist')
+const local_path = path.resolve('.') + '/node_modules/';
 
 // There is no good way to save the system `require()` before metro overwrites
 // it.  Plus metro does not handle cyclic dependencies well at all.  We fix these by
 // using our own implementation of metroRequire.
-fs.writeFileSync(path.resolve(__dirname,'../node_modules/metro-config/src/defaults/defaults.js'),
-  fs.readFileSync(path.resolve(__dirname, 'metro-polyfill/defaults.js'))
-)
+try {
+  fs.writeFileSync(path.resolve(__dirname,'../node_modules/metro-config/src/defaults/defaults.js'),
+    fs.readFileSync(path.resolve(__dirname, 'metro-polyfill/defaults.js'))
+  )
+} catch (e) {
+  fs.writeFileSync(path.resolve(local_path,'metro-config/src/defaults/defaults.js'),
+    fs.readFileSync(path.resolve(__dirname, 'metro-polyfill/defaults.js'))
+  )
+}
 
 // Patch for: https://github.com/facebook/metro/issues/330
 // And disable throwOnModuleCollision -- this causes all kinds of problems and solves none.
-fs.writeFileSync(path.resolve(__dirname,'../node_modules/metro/src/node-haste/DependencyGraph.js'),
-  fs.readFileSync(path.resolve(__dirname, 'metro-polyfill/DependencyGraph.js'))
-)
+try {
+  fs.writeFileSync(path.resolve(__dirname,'../node_modules/metro/src/node-haste/DependencyGraph.js'),
+    fs.readFileSync(path.resolve(__dirname, 'metro-polyfill/DependencyGraph.js'))
+  )
+} catch (e) {
+  fs.writeFileSync(path.resolve(local_path,'metro/src/node-haste/DependencyGraph.js'),
+    fs.readFileSync(path.resolve(__dirname, 'metro-polyfill/DependencyGraph.js'))
+  )
+}
 
 const configure = (config) => {
   // Do not add all the react-native junk by default.  This needs to be done

lib/metro-polyfill/defaults.js

@@ -45,7 +45,13 @@ exports.assetExts = [
 exports.sourceExts = ["js", "json", "ts", "tsx"];
 // LiquidCore: Override default require
 //exports.moduleSystem = require.resolve("metro/src/lib/polyfills/require.js");
-exports.moduleSystem = require.resolve("../../../../lib/metro-polyfill/require.js");
+try {
+  exports.moduleSystem = require.resolve("../../../../lib/metro-polyfill/require.js");
+} catch (e) {
+  const path=require('path')
+  const local_path = path.resolve('.') + '/node_modules/';
+  exports.moduleSystem = require.resolve(local_path+"liquidcore/lib/metro-polyfill/require.js");
+}
 exports.platforms = ["ios", "android", "windows", "web"];
 exports.DEFAULT_METRO_MINIFIER_PATH = "metro-minify-uglify";
 exports.defaultCreateModuleIdFactory = defaultCreateModuleIdFactory;