Updated hot reloader

packages/hot/.idea/hot.iml

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="WEB_MODULE" version="4">
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$">
-      <excludeFolder url="file://$MODULE_DIR$/.dart_tool" />
-      <excludeFolder url="file://$MODULE_DIR$/.pub" />
-      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
-      <excludeFolder url="file://$MODULE_DIR$/build" />
-      <excludeFolder url="file://$MODULE_DIR$/temp" />
-      <excludeFolder url="file://$MODULE_DIR$/tmp" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" name="Dart SDK" level="project" />
-    <orderEntry type="library" name="Dart Packages" level="project" />
-  </component>
-</module>

packages/hot/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/hot.iml" filepath="$PROJECT_DIR$/.idea/hot.iml" />
-    </modules>
-  </component>
-</project>

packages/hot/.idea/runConfigurations/main_dart.xml

@@ -1,8 +0,0 @@
-<component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="main.dart" type="DartCommandLineRunConfigurationType" factoryName="Dart Command Line Application" singleton="true" nameIsGenerated="true">
-    <option name="VMOptions" value="--observe" />
-    <option name="filePath" value="$PROJECT_DIR$/example/basic/main.dart" />
-    <option name="workingDirectory" value="$PROJECT_DIR$/example/basic" />
-    <method />
-  </configuration>
-</component>

packages/hot/.idea/runConfigurations/main_dart__No_VM_service_.xml

@@ -1,7 +0,0 @@
-<component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="main.dart (No VM service)" type="DartCommandLineRunConfigurationType" factoryName="Dart Command Line Application" singleton="true">
-    <option name="filePath" value="$PROJECT_DIR$/example/basic/main.dart" />
-    <option name="workingDirectory" value="$PROJECT_DIR$/example/basic" />
-    <method />
-  </configuration>
-</component>

packages/hot/.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>

packages/hot/CHANGELOG.md

@@ -1,41 +1,60 @@
-# 4.1.0
+# Change Log
+
+## 4.1.1
+
+* Fixed NNBD issues
+* Updated README
+  
+## 4.1.0
+
 * Updated `vm_service` to 7.1.x
 
-# 4.0.0
+## 4.0.0
+
 * Migrated to support Dart SDK 2.12.x NNBD
 
-# 3.0.0
+## 3.0.0
+
 * Migrated to work with Dart SDK 2.12.x Non NNBD
 
-# 2.0.6
+## 2.0.6
+
 * Support `--observe=*`, `--enable-vm-service=*` (`startsWith`, instead of `==`).
 
-# 2.0.5
+## 2.0.5
+
 * Use `dart:developer` to find the Observatory URI.
 * Use the app's logger when necessary.
 * Apply `package:pedantic`.
 
-# 2.0.4
+## 2.0.4
+
 * Forcibly close app loggers on shutdown.
 
-# 2.0.3
+## 2.0.3
+
 * Fixed up manual restart.
 * Remove stutter on hotkey press.
 
-# 2.0.2
+## 2.0.2
+
 * Fixed for compatibility with `package:angel_websocket@^2.0.0-alpha.5`.
 
-# 2.0.1
+## 2.0.1
-* Add import of `package:angel_framework/http.dart`
+
-  * https://github.com/angel-dart/hot/pull/7
+* Add import of `package:angel_framework/http.dart`
+  * <https://github.com/angel-dart/hot/pull/7>
+
+## 2.0.0
 
-# 2.0.0
 * Update for Dart 2 + Angel 2.
 
-# 1.1.1+1
+## 1.1.1+1
+
 * Fix a bug that threw when `--observe` was not present.
 
-# 1.1.1
+## 1.1.1
+
 * Disable the observatory from pausing the isolate
 on exceptions, because Angel already handles
 all exceptions by itself.

packages/hot/README.md

@@ -1,18 +1,20 @@
-# angel3_hot
+# Angel3 Hot Reloader
-[![version](https://img.shields.io/badge/pub-v4.1.0-brightgreen)](https://pub.dartlang.org/packages/angel3_hot)
+
+[![version](https://img.shields.io/badge/pub-v4.1.1-brightgreen)](https://pub.dartlang.org/packages/angel3_hot)
 [![Null Safety](https://img.shields.io/badge/null-safety-brightgreen)](https://dart.dev/null-safety)
 [![Gitter](https://img.shields.io/gitter/room/angel_dart/discussion)](https://gitter.im/angel_dart/discussion)
 
 [![License](https://img.shields.io/github/license/dukefirehawk/angel)](https://github.com/dukefirehawk/angel/tree/angel3/packages/hot/LICENSE)
 
-![Screenshot of terminal](screenshots/screenshot.png)
+![Screenshot of terminal](screenshots/angel3-screenshot.png)
 
-Supports *hot reloading* of Angel servers on file changes. This is faster and
+Supports *hot reloading* of Angel3 servers on file changes. This is faster and more reliable than merely reactively restarting a `Process`.
-more reliable than merely reactively restarting a `Process`.
+This package only works with the [Angel3 framework](https://github.com/dukefirehawk/angel).
 
-This package only works with the [Angel framework](https://github.com/dukefirehawk/angel/tree/angel3).
+**Not recommended to use in production, unless you are specifically intending for a "hot code push" in production..**
+
+## Installation
 
-# Installation
 In your `pubspec.yaml`:
 
 ```yaml
@@ -21,32 +23,28 @@ dependencies:
   angel3_hot: ^4.0.0
 ```
 
-# Usage
+## Usage
-This package is dependent on the Dart VM service, so you *must* run
-Dart with the `--observe` (or `--enable-vm-service`) argument!!!
 
-Usage is fairly simple. Pass a function that creates an `Angel` server, along with a collection of paths
+This package is dependent on the Dart VM service, so you *must* run Dart with the `--observe` (or `--enable-vm-service`) argument!!!
-to watch, to the `HotReloader` constructor. The rest is history!!!
 
-The recommended pattern is to only use hot-reloading in your application entry point. Create your `Angel` instance
+Usage is fairly simple. Pass a function that creates an `Angel` server, along with a collection of paths to watch, to the `HotReloader` constructor. The rest is history!!!
-within a separate function, conventionally named `createServer`. 
 
-**Using this in production mode is not recommended, unless you are
+The recommended pattern is to only use hot-reloading in your application entry point. Create your `Angel` instance within a separate function, conventionally named `createServer`.
-specifically intending for a "hot code push" in production..**
 
 You can watch:
-  * Files
+
-  * Directories
+* Files
-  * Globs
+* Directories
-  * URI's
+* Globs
-  * `package:` URI's
+* URI's
+* `package:` URI's
   
 ```dart
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
-import 'package:angel_framework/angel_framework.dart';
+import 'package:angel3_framework/angel3_framework.dart';
-import 'package:angel_hot/angel_hot.dart';
+import 'package:angel3_hot/angel_hot.dart';
 import 'package:logging/logging.dart';
 import 'src/foo.dart';
 
@@ -55,26 +53,26 @@ main() async {
     new Directory('src'),
     new Directory('src'),
     'main.dart',
-    Uri.parse('package:angel_hot/angel_hot.dart')
+    Uri.parse('package:angel3_hot/angel3_hot.dart')
   ]);
   await hot.startServer('127.0.0.1', 3000);
 }
 
 Future<Angel> createServer() async {
-  var app = new Angel()..serializer = json.encode;
+  var app = Angel()..serializer = json.encode;
 
   // Edit this line, and then refresh the page in your browser!
   app.get('/', (req, res) => {'hello': 'hot world!'});
-  app.get('/foo', (req, res) => new Foo(bar: 'baz'));
+  app.get('/foo', (req, res) => Foo(bar: 'baz'));
 
-  app.fallback((req, res) => throw new AngelHttpException.notFound());
+  app.fallback((req, res) => throw AngelHttpException.notFound());
 
   app.encoders.addAll({
     'gzip': gzip.encoder,
     'deflate': zlib.encoder,
   });
 
-  app.logger = new Logger('angel')
+  app.logger = Logger('angel')
     ..onRecord.listen((rec) {
       print(rec);
       if (rec.error != null) {

packages/hot/lib/angel3_hot.dart

@@ -140,7 +140,7 @@ class HotReloader {
 
   void _logWarning(String msg) {
     if (_server?.app.logger != null) {
-      _server!.app.logger!.warning(msg);
+      _server?.app.logger?.warning(msg);
     } else {
       print(yellow.wrap('WARNING: $msg'));
     }
@@ -148,7 +148,7 @@ class HotReloader {
 
   void _logInfo(String msg) {
     if (_server?.app.logger != null) {
-      _server!.app.logger!.info(msg);
+      _server?.app.logger?.info(msg);
     } else {
       print(lightGray.wrap(msg));
     }
@@ -183,10 +183,14 @@ class HotReloader {
       }
       _client = await vm.vmServiceConnectUri(uri.toString());
       _vmachine ??= await _client.getVM();
-      _mainIsolate ??= _vmachine!.isolates!.first;
+      _mainIsolate ??= _vmachine?.isolates?.first;
 
-      for (var isolate in _vmachine!.isolates!) {
+      if (_vmachine != null) {
-        await _client.setExceptionPauseMode(isolate.id!, 'None');
+        for (var isolate in _vmachine!.isolates ?? <vm.IsolateRef>[]) {
+          if (isolate.id != null) {
+            await _client.setExceptionPauseMode(isolate.id!, 'None');
+          }
+        }
       }
 
       await _listenToFilesystem();
@@ -206,16 +210,25 @@ class HotReloader {
     if (enableHotkeys) {
       var serverUri =
           Uri(scheme: 'http', host: server.address.address, port: server.port);
-      var observatoryUri =
+
-          await dev.Service.getInfo().then((i) => i.serverUri!);
+      var observatoryUri;
+      if (isHot) {
+        observatoryUri = await dev.Service.getInfo().then((i) => i.serverUri!);
+      }
 
       print(styleBold.wrap(
           '\n🔥  To hot reload changes while running, press "r". To hot restart (and rebuild state), press "R".'));
-      stdout.write('Your Angel server is listening at: ');
+      stdout.write('Your server is listening at: ');
       print(wrapWith('$serverUri', [cyan, styleUnderlined]));
-      stdout.write(
+
-          'An Observatory debugger and profiler on ${Platform.operatingSystem} is available at: ');
+      if (isHot) {
-      print(wrapWith('$observatoryUri', [cyan, styleUnderlined]));
+        stdout.write(
+            'An Observatory debugger and profiler on ${Platform.operatingSystem} is available at: ');
+        print(wrapWith('$observatoryUri', [cyan, styleUnderlined]));
+      } else {
+        stdout.write(
+            'The observatory debugger and profiler are not available.\n');
+      }
       print(
           'For a more detailed help message, press "h". To quit, press "q".\n');
 

packages/hot/pubspec.yaml

@@ -1,6 +1,6 @@
 name: angel3_hot
 description: Supports hot reloading/hot code push of Angel servers on file changes.
-version: 4.1.0
+version: 4.1.1
 homepage: https://github.com/dukefirehawk/angel/tree/angel3/packages/hot
 environment:
   sdk: '>=2.12.0 <3.0.0'