flet build command to package Flet app for any platform (#2271)

* Added `flet build` command prototype

* Bump `http` dependency

* Add `platform`, `python_app_path` and `--output_dir` to flet build command

* flet build - 1st prototype

* Build options per platform

* configurable output folder

* Copy assets

* Generate app icons and splashes

* Generate python package

* build find-links, install micropip

* Disable splash for specific platform

* --base-url, --web-renderer, --use-color-emoji, --route-url-strategy args

* Update logo-inkscape.svg

* Fix shake detector dependency

Close #2257

* Copy build directory and exclude it from a build

* More options, detect arch, copy build output

* Fix running flutter and dart on Windows

* Generate splash screen for selected platforms only

* Display output dir

* Added --team and --flutter-build-args arguments

* build number/version and template args

* Copy "assets" to web root

* Renamed platform to package

* Take stem of module_name

* package -> target_platform

* Simplified logic for Text.style and Text.theme_style

* Fix test: Text.style should support both enum and string

client/pubspec.lock

@@ -318,6 +318,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.1"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: "623a88c9594aa774443aa3eb2d41807a48486b5613e67599fb4c41c0ad47c340"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
   markdown:
     dependency: transitive
     description:
@@ -474,34 +482,18 @@ packages:
     dependency: transitive
     description:
       name: sensors_plus
-      sha256: "362c8f4f001838b90dd5206b898bbad941bc0142479eab9a3415f0f79e622908"
+      sha256: "8e7fa79b4940442bb595bfc0ee9da4af5a22a0fe6ebacc74998245ee9496a82d"
       url: "https://pub.dev"
     source: hosted
-    version: "1.4.1"
+    version: "4.0.2"
   sensors_plus_platform_interface:
     dependency: transitive
     description:
       name: sensors_plus_platform_interface
-      sha256: "95f0cc08791b8bf0c41c5fa99c84be2a7d5bf60a811ddc17e1438b1e68caf0d3"
+      sha256: bc472d6cfd622acb4f020e726433ee31788b038056691ba433fec80e448a094f
       url: "https://pub.dev"
     source: hosted
-    version: "1.1.3"
-  sensors_plus_web:
-    dependency: transitive
-    description:
-      name: sensors_plus_web
-      sha256: fca8d7d9ab6233b2a059952666415508e252420be1ef54f092d07884da53ec5e
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.1.2"
-  shake:
-    dependency: transitive
-    description:
-      name: shake
-      sha256: "107546951c6b8f5e4c2dca66dfb3aa27dd1a853b4e9a26c9aea224b167045023"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.2.0"
+    version: "1.2.0"
   shared_preferences:
     dependency: transitive
     description:

package/lib/src/controls/shake_detector.dart

@@ -1,5 +1,8 @@
+import 'dart:async';
+import 'dart:math';
+
 import 'package:flutter/widgets.dart';
-import 'package:shake/shake.dart';
+import 'package:sensors_plus/sensors_plus.dart';
 
 import '../flet_app_services.dart';
 import '../models/control.dart';
@@ -70,3 +73,120 @@ class _ShakeDetectorControlState extends State<ShakeDetectorControl> {
     return widget.nextChild ?? const SizedBox.shrink();
   }
 }
+
+/*
+Source: https://github.com/dieringe/shake/blob/master/lib/shake.dart
+
+Copyright 2019 Deven Joshi
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/// Callback for phone shakes
+typedef PhoneShakeCallback = void Function();
+
+/// ShakeDetector class for phone shake functionality
+class ShakeDetector {
+  /// User callback for phone shake
+  final PhoneShakeCallback onPhoneShake;
+
+  /// Shake detection threshold
+  final double shakeThresholdGravity;
+
+  /// Minimum time between shake
+  final int shakeSlopTimeMS;
+
+  /// Time before shake count resets
+  final int shakeCountResetTime;
+
+  /// Number of shakes required before shake is triggered
+  final int minimumShakeCount;
+
+  int mShakeTimestamp = DateTime.now().millisecondsSinceEpoch;
+  int mShakeCount = 0;
+
+  /// StreamSubscription for Accelerometer events
+  StreamSubscription? streamSubscription;
+
+  /// This constructor waits until [startListening] is called
+  ShakeDetector.waitForStart({
+    required this.onPhoneShake,
+    this.shakeThresholdGravity = 2.7,
+    this.shakeSlopTimeMS = 500,
+    this.shakeCountResetTime = 3000,
+    this.minimumShakeCount = 1,
+  });
+
+  /// This constructor automatically calls [startListening] and starts detection and callbacks.
+  ShakeDetector.autoStart({
+    required this.onPhoneShake,
+    this.shakeThresholdGravity = 2.7,
+    this.shakeSlopTimeMS = 500,
+    this.shakeCountResetTime = 3000,
+    this.minimumShakeCount = 1,
+  }) {
+    startListening();
+  }
+
+  /// Starts listening to accelerometer events
+  void startListening() {
+    streamSubscription = accelerometerEvents.listen(
+      (AccelerometerEvent event) {
+        double x = event.x;
+        double y = event.y;
+        double z = event.z;
+
+        double gX = x / 9.80665;
+        double gY = y / 9.80665;
+        double gZ = z / 9.80665;
+
+        // gForce will be close to 1 when there is no movement.
+        double gForce = sqrt(gX * gX + gY * gY + gZ * gZ);
+
+        if (gForce > shakeThresholdGravity) {
+          var now = DateTime.now().millisecondsSinceEpoch;
+          // ignore shake events too close to each other (500ms)
+          if (mShakeTimestamp + shakeSlopTimeMS > now) {
+            return;
+          }
+
+          // reset the shake count after 3 seconds of no shakes
+          if (mShakeTimestamp + shakeCountResetTime < now) {
+            mShakeCount = 0;
+          }
+
+          mShakeTimestamp = now;
+          mShakeCount++;
+
+          if (mShakeCount >= minimumShakeCount) {
+            onPhoneShake();
+          }
+        }
+      },
+    );
+  }
+
+  /// Stops listening to accelerometer events
+  void stopListening() {
+    streamSubscription?.cancel();
+  }
+}

package/pubspec.yaml

@@ -37,7 +37,7 @@ dependencies:
   flutter_svg: ^2.0.9
   window_to_front: ^0.0.3
   audioplayers: ^5.2.1
-  shake: ^2.2.0
+  sensors_plus: ^4.0.2
   path: ^1.8.2
   js: ^0.6.5
   fl_chart: ^0.65.0

sdk/python/packages/flet-core/src/flet_core/text.py

@@ -35,25 +35,6 @@ class TextOverflow(Enum):
     VISIBLE = "visible"
 
 
-TextThemeStyleString = Literal[
-    "displayLarge",
-    "displayMedium",
-    "displaySmall",
-    "headlineLarge",
-    "headlineMedium",
-    "headlineSmall",
-    "titleLarge",
-    "titleMedium",
-    "titleSmall",
-    "labelLarge",
-    "labelMedium",
-    "labelSmall",
-    "bodyLarge",
-    "bodyMedium",
-    "bodySmall",
-]
-
-
 class TextThemeStyle(Enum):
     DISPLAY_LARGE = "displayLarge"
     DISPLAY_MEDIUM = "displayMedium"
@@ -203,7 +184,7 @@ def _get_children(self):
         children = []
         children.extend(self.__spans)
         return children
-    
+
     def _before_build_command(self):
         super()._before_build_command()
         if dataclasses.is_dataclass(self.__style):
@@ -279,35 +260,25 @@ def __set_weight(self, value: FontWeightString):
 
     # style
     @property
-    def style(self) -> Optional[Union[TextThemeStyle, TextStyle, TextThemeStyleString]]:
+    def style(self) -> Optional[Union[TextThemeStyle, TextStyle]]:
         return self.__style
 
     @style.setter
-    def style(self, value: Optional[Union[TextThemeStyle, TextStyle, TextThemeStyleString]]):
+    def style(self, value: Optional[Union[TextThemeStyle, TextStyle]]):
         self.__style = value
-        if isinstance(value, TextThemeStyle):
-            self._set_attr("style", value.value)
-        else:
-            self.__set_style(value)
-
-    def __set_style(self, value: Optional[Union[TextStyle, TextThemeStyleString]]):
-        self._set_attr("style", value)
+        if isinstance(value, (TextThemeStyle, str)) or value is None:
+            self._set_attr(
+                "style", value.value if isinstance(value, TextThemeStyle) else value
+            )
 
     # theme_style
     @property
-    def theme_style(self) -> Optional[Union[TextThemeStyle, TextThemeStyleString]]:
-        return self.__theme_style
+    def theme_style(self):
+        return self._get_attr("theme_style")
 
     @theme_style.setter
-    def theme_style(self, value: Optional[Union[TextThemeStyle, TextThemeStyleString]]):
-        self.__theme_style = value
-        if isinstance(value, TextThemeStyle):
-            self._set_attr("theme_style", value.value)
-        else:
-            self.__set_theme_style(value)
-
-    def __set_theme_style(self, value: Optional[TextThemeStyleString]):
-        self._set_attr("theme_style", value)
+    def theme_style(self, value: Optional[TextThemeStyle]):
+        self._set_attr("theme_style", value.value if value is not None else None)
 
     # italic
     @property

sdk/python/packages/flet-runtime/src/flet_runtime/utils.py

@@ -261,23 +261,5 @@ def patch_manifest_json(
         f.write(json.dumps(manifest, indent=2))
 
 
-def copy_tree(src, dst):
-    """Recursively copy a directory tree using shutil.copy2().
-
-    Arguments:
-    src -- source directory path
-    dst -- destination directory path
-
-    Return a list of files that were copied or might have been copied.
-    """
-    if not os.path.isdir(src):
-        raise OSError("Source is not a directory")
-
-    os.makedirs(dst, exist_ok=True)
-    for item in os.listdir(src):
-        s = os.path.join(src, item)
-        d = os.path.join(dst, item)
-        if os.path.isdir(s):
-            copy_tree(s, d)
-        else:
-            shutil.copy2(s, d)
+def copy_tree(src, dst, ignore=None):
+    return shutil.copytree(src, dst, ignore=ignore, symlinks=True, dirs_exist_ok=True)