android-assistant/CLAUDE.md

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

A Python GUI tool for managing Android device files via ADB (Android Debug Bridge). The application automatically downloads ADB platform-tools if needed, detects connected devices, and provides a Tkinter-based interface for transferring files between Android devices and local systems.

Supported Platforms: Windows, Linux (Debian, Arch, RHEL/Fedora)

Development Setup

Installation

poetry install

Running the Application

poetry run python -m src.main

Common Commands

Testing

# Test if application runs
poetry run python -m src.main

# Run all tests
poetry run pytest tests/ -v

# Run tests with coverage
poetry run pytest tests/ -v --cov

# Run specific test file
poetry run pytest tests/core/test_adb_manager.py -v

Code Quality

# Format code with Black
poetry run black src/ tests/

# Lint with flake8
poetry run flake8 src/ tests/

# Type checking with mypy
poetry run mypy src/

Building and Packaging

Local Development Build (Linux)

poetry run python scripts/build_package_linux.py

Platform-Specific Builds

# Windows executable (PyInstaller)
poetry run pyinstaller scripts/spec_scripts/android-file-handler-windows.spec

# Linux packages use distro-specific spec files:
# - android-file-handler-debian.spec
# - android-file-handler-arch.spec
# - android-file-handler-rhel.spec

Architecture

Directory Structure

• src/core/: Core ADB functionality

  • adb_manager.py: Main ADB interface and operations coordinator
  • adb_command.py: Command execution wrapper
  • file_transfer.py: File transfer logic
  • platform_tools.py: ADB binary management and download
  • platform_utils.py: Platform detection utilities
  • progress_tracker.py: Transfer progress tracking

• src/gui/: GUI components

  • main_window.py: Main application window (entry point for GUI)
  • components/: Reusable UI widgets (file browser, path selectors, etc.)
  • handlers/: Event and animation handlers
  • dialogs/: Dialog windows (license agreement, device instructions, etc.)

• src/managers/: Business logic coordination

  • device_manager.py: Device detection and management
  • transfer_manager.py: Coordinates transfers between GUI and ADB manager

• src/utils/: Utility modules

  • file_deduplication.py: File deduplication logic

• scripts/: Build and packaging scripts

  • build_package_linux.py: Unified Linux packaging script (uses DISTRO_TYPE env var)
  • spec_scripts/: PyInstaller spec files for each platform

• tests/: Test suite mirroring src/ structure

Application Flow

1. Startup: src/main.py → License check → gui/main_window.py:main()
2. ADB Setup: ADBManager checks for platform-tools, downloads if needed
3. Device Detection: DeviceManager checks for connected devices
4. File Transfer: TransferManager coordinates UI updates with ADB file operations

Key Patterns

• Import Fallbacks: Most modules use try/except for relative vs. direct imports to support both module and direct execution
• Manager Pattern: Business logic separated into DeviceManager, TransferManager, ADBManager
• Component Composition: GUI built from reusable components in gui/components/
• Threading: File transfers run in background threads; UI updates via callbacks

CI/CD

The project uses GitHub Actions for multi-platform builds (.github/workflows/release.yml):

• Runs tests on Linux and Windows
• Builds binaries for Windows, Debian, Arch, and RHEL
• Packages using PyInstaller + fpm
• Supports manual workflow dispatch with configurable jobs
• Optional GitHub release creation and S3 upload

Coding Standards

• Follow PEP 8 guidelines
• Use type hints for all function parameters and return values
• Write docstrings for all public modules, functions, and classes
• Use f-strings for string formatting
• No single-letter variable names except e for exceptions
• Always run Python commands through Poetry
• Do not recreate deleted files
• Do not change user-facing text unless asked
• Always run the application to test if it will run and have it run successfully before declaring an iteration complete
• Never use the squash merge strategy unless specifically instructed to do so

Notes

• ADB Binaries: Stored in src/platform-tools/ - do not modify or delete unless explictly instructed to
• Python Version: Requires Python 3.13 (< 3.14)
• Package Mode: Poetry is configured with package-mode = false
• License: First-run license agreement required on Windows