Fix site-packages update on Android (flet-dev#194)

* Add asset extraction invalidation by version keys

Introduces invalidateKey support to asset extraction utilities, allowing unpacked assets to be invalidated based on Python or app version. Updates Android plugin and Dart code to provide app and Python version info for more robust cache invalidation when extracting Python bundles and site-packages.

* Add debug logs; deduplicate ffi import

Move and remove duplicate ffi import, format python invalidate key assignment, and add spDebug logging for Python version and app version. These changes improve readability and add runtime debug output to help diagnose bundle extraction and versioning without altering core behavior.

* Use getLongVersionCode() unconditionally

Replace the SDK-version conditional for retrieving the app version code with a direct call to PackageInfo.getLongVersionCode(). This simplifies the code by removing the legacy branch that used the int versionCode and assumes compilation/targeting against API 28+ where getLongVersionCode() is available. No functional change to the returned string (versionName + "+" + versionCode).

* Add prepare-release codex skill

Introduce .codex/skills/prepare-release/SKILL.md documenting a prepare-release workflow for serious_python. The file lists required inputs and step-by-step actions to bump package versions (pubspecs, podspec, Android build.gradle), run pub get for example apps, and add changelog entries from git history while excluding trivial/chore/duplicate items.

* Release 0.9.10: bump versions & update locks

Bump package versions to 0.9.10 across the repository and add 0.9.10 changelog entries. Update platform package pubspecs, Android build.gradle and Darwin podspec. Update example pubspec.lock files to reference the new package versions and refreshed dependency hashes/versions (including a Dart SDK constraint bump in one lock). Changelog notes highlight: add Android debug logs, deduplicate FFI imports, and invalidate extracted assets when version keys change.

Author: FeodorFitsner

.codex/skills/prepare-release/SKILL.md

@@ -0,0 +1,20 @@
+---
+name: prepare-release
+description: Use when asked to prepare new serious_python release by bumping versions and author release notes.
+---
+
+## Inputs
+
+* Previous serious_python version from repo tags.
+* Whether it's minor or major release.
+
+## Steps
+
+* Take latest serious_python release version from the repo and
+  increment third (patch) digit to get the next version if it's a minor release
+  or second (minor) digit if it's a major release.
+* Set new version in pubspec.yaml of all packages in /src.
+* Set new s.version in src/serious_python_darwin/darwin/serious_python_darwin.podspec.
+* Set new version in src/serious_python_android/android/build.gradle.
+* Run pub get for all apps in src/serious_python/example to refresh their pubspec.lock with new version.
+* Add a new entry into all packages' CHANGELOG.md from a git log since the last release. Do not add chore/trivial/duplicate items, add items with related issue or PR.

src/serious_python/CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.9.10
+
+* Android: Add debug logs and deduplicate FFI imports.
+* Android: Invalidate extracted assets when version keys change.
+
 ## 0.9.9
 
 * Add zipDirectoryPosix to create POSIX-compliant app archives on Windows.

src/serious_python/example/flask_example/pubspec.lock

@@ -289,42 +289,42 @@ packages:
       path: "../.."
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_android:
     dependency: transitive
     description:
       path: "../../../serious_python_android"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_darwin:
     dependency: transitive
     description:
       path: "../../../serious_python_darwin"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_linux:
     dependency: transitive
     description:
       path: "../../../serious_python_linux"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_platform_interface:
     dependency: transitive
     description:
       path: "../../../serious_python_platform_interface"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_windows:
     dependency: transitive
     description:
       path: "../../../serious_python_windows"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   shelf:
     dependency: transitive
     description:

src/serious_python/example/flet_example/pubspec.lock

@@ -117,10 +117,10 @@ packages:
     dependency: transitive
     description:
       name: fake_async
-      sha256: "6a95e56b2449df2273fd8c45a662d6947ce1ebb7aafe80e550a3f68297f3cacc"
+      sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44"
       url: "https://pub.dev"
     source: hosted
-    version: "1.3.2"
+    version: "1.3.3"
   ffi:
     dependency: transitive
     description:
@@ -280,10 +280,10 @@ packages:
     dependency: transitive
     description:
       name: intl
-      sha256: d6f56758b7d3014a48af9701c085700aac781a92a87a62b1333b46d8879661cf
+      sha256: "3df61194eb431efc39c4ceba583b95633a403f46c9fd341e550ce0bfa50e9aa5"
       url: "https://pub.dev"
     source: hosted
-    version: "0.19.0"
+    version: "0.20.2"
   js:
     dependency: transitive
     description:
@@ -304,26 +304,26 @@ packages:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: c35baad643ba394b40aac41080300150a4f08fd0fd6a10378f8f7c6bc161acec
+      sha256: "33e2e26bdd85a0112ec15400c8cbffea70d0f9c3407491f672a2fad47915e2de"
       url: "https://pub.dev"
     source: hosted
-    version: "10.0.8"
+    version: "11.0.2"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
       name: leak_tracker_flutter_testing
-      sha256: f8b613e7e6a13ec79cfdc0e97638fddb3ab848452eff057653abd3edba760573
+      sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.9"
+    version: "3.0.10"
   leak_tracker_testing:
     dependency: transitive
     description:
       name: leak_tracker_testing
-      sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
+      sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.1"
+    version: "3.0.2"
   lints:
     dependency: transitive
     description:
@@ -368,10 +368,10 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: e3641ec5d63ebf0d9b41bd43201a66e3fc79a65db5f61fc181f04cd27aab950c
+      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
       url: "https://pub.dev"
     source: hosted
-    version: "1.16.0"
+    version: "1.17.0"
   package_info_plus:
     dependency: "direct main"
     description:
@@ -562,42 +562,42 @@ packages:
       path: "../.."
       relative: true
     source: path
-    version: "0.9.8"
+    version: "0.9.10"
   serious_python_android:
     dependency: transitive
     description:
       path: "../../../serious_python_android"
       relative: true
     source: path
-    version: "0.9.8"
+    version: "0.9.10"
   serious_python_darwin:
     dependency: transitive
     description:
       path: "../../../serious_python_darwin"
       relative: true
     source: path
-    version: "0.9.8"
+    version: "0.9.10"
   serious_python_linux:
     dependency: transitive
     description:
       path: "../../../serious_python_linux"
       relative: true
     source: path
-    version: "0.9.8"
+    version: "0.9.10"
   serious_python_platform_interface:
     dependency: transitive
     description:
       path: "../../../serious_python_platform_interface"
       relative: true
     source: path
-    version: "0.9.8"
+    version: "0.9.10"
   serious_python_windows:
     dependency: transitive
     description:
       path: "../../../serious_python_windows"
       relative: true
     source: path
-    version: "0.9.8"
+    version: "0.9.10"
   shared_preferences:
     dependency: transitive
     description:
@@ -719,10 +719,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: fb31f383e2ee25fbbfe06b40fe21e1e458d14080e3c67e7ba0acfde4df4e0bbd
+      sha256: ab2726c1a94d3176a45960b6234466ec367179b87dd74f1611adb1f3b5fb9d55
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.4"
+    version: "0.7.7"
   toml:
     dependency: transitive
     description:
@@ -839,10 +839,10 @@ packages:
     dependency: transitive
     description:
       name: vector_math
-      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
+      sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.4"
+    version: "2.2.0"
   vm_service:
     dependency: transitive
     description:
@@ -924,5 +924,5 @@ packages:
     source: hosted
     version: "6.5.0"
 sdks:
-  dart: ">=3.7.0 <4.0.0"
+  dart: ">=3.8.0-0 <4.0.0"
   flutter: ">=3.22.0"

src/serious_python/example/run_example/pubspec.lock

@@ -312,42 +312,42 @@ packages:
       path: "../.."
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_android:
     dependency: transitive
     description:
       path: "../../../serious_python_android"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_darwin:
     dependency: transitive
     description:
       path: "../../../serious_python_darwin"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_linux:
     dependency: transitive
     description:
       path: "../../../serious_python_linux"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_platform_interface:
     dependency: transitive
     description:
       path: "../../../serious_python_platform_interface"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   serious_python_windows:
     dependency: transitive
     description:
       path: "../../../serious_python_windows"
       relative: true
     source: path
-    version: "0.9.9"
+    version: "0.9.10"
   shelf:
     dependency: transitive
     description:

src/serious_python/pubspec.yaml

@@ -2,7 +2,7 @@ name: serious_python
 description: A cross-platform plugin for adding embedded Python runtime to your Flutter apps.
 homepage: https://flet.dev
 repository: https://github.com/cfms-dev/serious-python
-version: 0.9.9
+version: 0.9.10
 
 platforms:
   ios:

src/serious_python_android/CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.9.10
+
+* Android: Add debug logs and deduplicate FFI imports.
+* Android: Invalidate extracted assets when version keys change.
+
 ## 0.9.9
 
 * Add zipDirectoryPosix to create POSIX-compliant app archives on Windows.

src/serious_python_android/android/build.gradle

@@ -1,5 +1,5 @@
 group 'com.flet.serious_python_android'
-version '0.9.9'
+version '0.9.10'
 
 def python_version = '3.14'
 

src/serious_python_android/android/src/main/java/com/flet/serious_python_android/AndroidPlugin.java

@@ -60,6 +60,17 @@ public void onAttachedToActivity(@NonNull ActivityPluginBinding activityPluginBi
   public void onMethodCall(@NonNull MethodCall call, @NonNull Result result) {
     if (call.method.equals("getPlatformVersion")) {
       result.success("Android " + android.os.Build.VERSION.RELEASE);
+    } else if (call.method.equals("getAppVersion")) {
+      try {
+        String packageName = context.getPackageName();
+        android.content.pm.PackageManager pm = context.getPackageManager();
+        android.content.pm.PackageInfo info = pm.getPackageInfo(packageName, 0);
+        String versionName = info.versionName;
+        long versionCode = info.getLongVersionCode();
+        result.success(versionName + "+" + versionCode);
+      } catch (Exception e) {
+        result.error("Error", e.getMessage(), null);
+      }
     } else if (call.method.equals("getNativeLibraryDir")) {
       ContextWrapper contextWrapper = new ContextWrapper(context);
       String nativeLibraryDir = contextWrapper.getApplicationInfo().nativeLibraryDir;