Fix: do not remove flutter-packages on re-build if dev_packages configured. (#5002)

Author: FeodorFitsner

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Flet changelog
 
+## 0.27.4
+
+* Fix: do not remove `flutter-packages` on re-build if `dev_packages` configured.
+
 ## 0.27.3
 
 * Fixes to make `flet build` work in CI environment ([#4993](https://github.com/flet-dev/flet/issues/4993))

packages/flet/CHANGELOG.md

@@ -1,3 +1,7 @@
+# 0.27.4
+
+* Fix: do not remove `flutter-packages` on re-build if `dev_packages` configured.
+
 # 0.27.3
 
 * Fixes to make `flet build` work in CI environment ([#4993](https://github.com/flet-dev/flet/issues/4993))

packages/flet/pubspec.yaml

@@ -2,7 +2,7 @@ name: flet
 description: Write entire Flutter app in Python or add server-driven UI experience into existing Flutter app.
 homepage: https://flet.dev
 repository: https://github.com/flet-dev/flet/packages/flet
-version: 0.27.3
+version: 0.27.4
 
 # This package supports all platforms listed below.
 platforms:

sdk/python/packages/flet-cli/src/flet_cli/commands/build.py

@@ -1731,25 +1731,24 @@ def package_python_app(self):
         if platform_dependencies:
             toml_dependencies.extend(platform_dependencies)
 
+        dev_packages_configured = False
         if len(toml_dependencies) > 0:
             dev_packages = (
                 self.get_pyproject(f"tool.flet.{self.config_platform}.dev_packages")
                 or self.get_pyproject(f"tool.flet.dev_packages")
                 or []
             )
             if len(dev_packages) > 0:
-                no_cache = False
                 for i in range(0, len(toml_dependencies)):
                     package_name = Requirement(toml_dependencies[i]).name
                     if package_name in dev_packages:
                         dev_path = Path(dev_packages[package_name])
                         if not dev_path.is_absolute():
                             dev_path = (self.python_app_path / dev_path).resolve()
                         toml_dependencies[i] = f"{package_name} @ file://{dev_path}"
-                        no_cache = True
-                if no_cache:
+                        dev_packages_configured = True
+                if dev_packages_configured:
                     toml_dependencies.append("--no-cache-dir")
-                    hash.update(time.time())
 
             package_args.append(",".join(toml_dependencies))
 
@@ -1857,11 +1856,13 @@ def package_python_app(self):
         # check if site-packages installation could be skipped
         for arg in package_args:
             hash.update(arg)
-        if not hash.has_changed():
-            package_args.append("--skip-site-packages")
-        else:
-            if self.flutter_packages_dir.exists():
-                shutil.rmtree(self.flutter_packages_dir, ignore_errors=True)
+
+        if not dev_packages_configured:
+            if not hash.has_changed():
+                package_args.append("--skip-site-packages")
+            else:
+                if self.flutter_packages_dir.exists():
+                    shutil.rmtree(self.flutter_packages_dir, ignore_errors=True)
 
         package_result = self.run(
             package_args,