Android Deployment: Install Python dependencies on first call

- `pyside6-android-deploy` has dependencies on Python packages `jinja2`
  and 'pkginfo'. Earlier they had to be manually installed by the user.
- This patch automates the installation on the first invocation of the
  tool.
- Windows and macOS desktop hosts now prints a not supported message
  and exits pyside6-android-deploy.
- As an addition, ran `isort` on the file.

Pick-to: 6.6
Task-number: PYSIDE-1612
Change-Id: I9ecba72afb396624809e98adf43236a2f15c15eb
Reviewed-by: Adrian Herrmann <adrian.herrmann@qt.io>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>

1 files changed, 13 insertions, 6 deletions

diff --git a/sources/pyside-tools/pyside_tool.py b/sources/pyside-tools/pyside_tool.py
index 5f71dd126..1648b2943 100644
--- a/sources/pyside-tools/pyside_tool.py
+++ b/sources/pyside-tools/pyside_tool.py
@@ -2,16 +2,16 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
-import sys
+import importlib
 import os
-from pathlib import Path
 import subprocess
+import sys
 import sysconfig
+from pathlib import Path
+from subprocess import PIPE, Popen
 
-from subprocess import Popen, PIPE
 import PySide6 as ref_mod
 
-
 VIRTUAL_ENV = "VIRTUAL_ENV"
 
 
@@ -55,7 +55,6 @@ def qt_tool_wrapper(qt_tool, args, libexec=False):
     sys.exit(proc.returncode)
 
 
-
 def pyside_script_wrapper(script_name):
     """Launch a script shipped with PySide."""
     script = Path(__file__).resolve().parent / script_name
@@ -195,7 +194,15 @@ def deploy():
 
 
 def android_deploy():
-    pyside_script_wrapper("android_deploy.py")
+    if not sys.platform == "linux":
+        print("pyside6-android-deploy only works from a Linux host")
+    else:
+        dependent_packages = ["jinja2", "pkginfo"]
+        for dependent_package in dependent_packages:
+            if not bool(importlib.util.find_spec(dependent_package)):
+                command = [sys.executable, "-m", "pip", "install", dependent_package]
+                subprocess.run(command)
+        pyside_script_wrapper("android_deploy.py")
 
 
 if __name__ == "__main__":