Use Expo SDK 31 instead, enable offline with assetBundlePatterns, disable autoupdates for apps via CDN

Author: cpirich

apps/src/templates/export/expo/CustomAsset.exported_js

@@ -33,14 +33,25 @@ export default class CustomAsset {
           // Ignore this because it throws if the dir already exists on Android
         }
       }
-      ({ md5 } = await FileSystem.downloadAsync(this.asset.uri, localUri, {
+      if (this.asset.localUri) {
+        await FileSystem.copyAsync({
+          from: this.asset.localUri,
+          to: localUri,
+        });
+        ({ md5 } = await FileSystem.getInfoAsync(localUri, {
           cache: true,
           md5: true,
-      }));
+        }));
+      } else {
+        ({ md5 } = await FileSystem.downloadAsync(this.asset.uri, localUri, {
+            cache: true,
+            md5: true,
+        }));
+      }
       if (md5 !== this.asset.hash) {
         throw new Error(
           `Downloaded file for asset '${this.fileName} ` +
-            `Located at ${this.asset.localUri} ` +
+            `Located at ${localUri} ` +
             `failed MD5 integrity check`
         );
       }

apps/src/templates/export/expo/app.json.ejs

@@ -4,7 +4,7 @@
     "description": "<%- appName %> from Code.org Code Studio.",
     "slug": "<%- appName.replace(/([^a-zA-Z0-9_\-]+)/gi, '-') %>",
     "privacy": "public",
-    "sdkVersion": "32.0.0",
+    "sdkVersion": "31.0.0",
     "platforms": ["ios", "android"],
     "version": "1.0.0",
     "orientation": "portrait",
@@ -15,8 +15,12 @@
       "backgroundColor": "#ffffff"
     },
     "updates": {
+      "enabled": false,
       "fallbackToCacheTimeout": 0
     },
+    "assetBundlePatterns": [
+      "**/*"
+    ],
     "packagerOpts": {
       "assetExts": [
         "html",

apps/src/templates/export/expo/package.exported_json

@@ -8,9 +8,9 @@
     "eject": "expo eject"
   },
   "dependencies": {
-    "expo": "^32.0.0",
+    "expo": "^31.0.4",
     "expo-cli": "^2.6.14",
     "react": "16.5.0",
-    "react-native": "https://github.com/expo/react-native/archive/sdk-32.0.0.tar.gz"
+    "react-native": "https://github.com/expo/react-native/archive/sdk-31.0.1.tar.gz"
   }
 }