Added support for tool.flet.dev_packages (#4965)

* Added support for `tool.flet.develop_packages`

Close #4963

* develop_packages -> dev_packages

Author: FeodorFitsner

client/pubspec.lock

@@ -263,7 +263,7 @@ packages:
       path: "../packages/flet"
       relative: true
     source: path
-    version: "0.26.0"
+    version: "0.27.1"
   flet_ads:
     dependency: "direct main"
     description:

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

@@ -5,6 +5,7 @@
 import re
 import shutil
 import sys
+import time
 from pathlib import Path
 from typing import Optional, cast
 
@@ -23,6 +24,7 @@
 )
 from flet_cli.utils.pyproject_toml import load_pyproject_toml
 from packaging import version
+from packaging.requirements import Requirement
 from rich.console import Console, Group
 from rich.live import Live
 from rich.panel import Panel
@@ -1581,7 +1583,27 @@ def package_python_app(self):
             toml_dependencies.extend(platform_dependencies)
 
         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:
+                    toml_dependencies.append("--no-cache-dir")
+                    hash.update(time.time())
+
             package_args.append(",".join(toml_dependencies))
+
         elif requirements_txt.exists():
             if self.verbose > 1:
                 with open(requirements_txt, "r", encoding="utf-8") as f: