build_python.sh

#!/bin/bash

set -e  # Exit immediately if a command exits with a non-zero status.

echo "Starting Python build process..."

# Define output directories
BASE_DIR="./bindings/python"
PACKAGE_DIR="$BASE_DIR/vss_rust_client_ffi"

# Create output directories
mkdir -p "$BASE_DIR"
mkdir -p "$PACKAGE_DIR"

# Remove previous build
echo "Removing previous build..."
# shellcheck disable=SC2115
rm -rf "$PACKAGE_DIR"/*

# Cargo Build
echo "Building Rust libraries..."
cargo build

# Temporarily set crate-type for Python (restored at end)
cp Cargo.toml Cargo.toml.bak
if [[ "$OSTYPE" == "darwin"* ]]; then
    sed -i '' 's/crate_type = .*/crate_type = ["cdylib"]/' Cargo.toml
else
    sed -i 's/crate_type = .*/crate_type = ["cdylib"]/' Cargo.toml
fi
trap 'mv Cargo.toml.bak Cargo.toml' EXIT

# Build release
echo "Building release version..."
cargo build --release

# Generate Python bindings
echo "Generating Python bindings..."

# Determine library name based on platform
case "$(uname)" in
    "Darwin")
        LIBRARY_PATH="./target/release/libvss_rust_client_ffi.dylib"
        LIBRARY_NAME="libvss_rust_client_ffi.dylib"
        ;;
    "Linux")
        LIBRARY_PATH="./target/release/libvss_rust_client_ffi.so"
        LIBRARY_NAME="libvss_rust_client_ffi.so"
        ;;
    "MINGW"*|"MSYS"*|"CYGWIN"*)
        LIBRARY_PATH="./target/release/vss_rust_client_ffi.dll"
        LIBRARY_NAME="vss_rust_client_ffi.dll"
        ;;
    *)
        echo "Unsupported platform: $(uname)"
        exit 1
        ;;
esac

# Debug information
echo "Looking for library in target/release directory..."
ls -la ./target/release/

# Check if the library file exists
if [ ! -f "$LIBRARY_PATH" ]; then
    echo "Error: Library file not found at $LIBRARY_PATH"
    echo "Available files in target/release:"
    ls -l ./target/release/
    exit 1
fi

# Generate the Python bindings
cargo run --bin uniffi-bindgen generate \
    --library "$LIBRARY_PATH" \
    --language python \
    --out-dir "$PACKAGE_DIR"

# Format Python code if yapf is available
if command -v yapf >/dev/null 2>&1; then
    echo "Formatting Python code with yapf..."
    yapf -i "$PACKAGE_DIR"/*.py
else
    echo "Note: yapf not found. Skipping Python code formatting."
fi

# Create __init__.py
touch "$PACKAGE_DIR/__init__.py"

# Create setup.py
cat > "$BASE_DIR/setup.py" << 'EOL'
from setuptools import setup, find_packages
import os

# Try to read README.md if it exists, otherwise use a default description
try:
    with open("README.md", "r") as f:
        long_description = f.read()
except FileNotFoundError:
    long_description = "Python bindings for the VSS Rust Client FFI"

setup(
    name="vss-rust-client-ffi",
    version="0.1.0",
    packages=find_packages(),
    package_data={
        "vss_rust_client_ffi": ["*.so", "*.dylib", "*.dll"],
    },
    install_requires=[],
    author="VSS",
    author_email="",
    description="Python bindings for the VSS Rust Client FFI",
    long_description=long_description,
    long_description_content_type="text/markdown",
    url="",
    classifiers=[
        "Programming Language :: Python :: 3",
        "License :: OSI Approved :: MIT License",
        "Operating System :: OS Independent",
    ],
    python_requires=">=3.6",
)
EOL

# Create README.md
cat > "$BASE_DIR/README.md" << EOL
# VSS Rust Client FFI Python Bindings

Python bindings for the VSS Rust Client FFI.

## Installation

\`\`\`bash
pip install .
\`\`\`

## Usage

\`\`\`python
from vss_rust_client_ffi import *

# Initialize VSS client
vss_new_client(
    "https://vss.example.com",
    "my-store",
    None
)

# Store data
item = vss_store("my-key", b"my-data")
print(f"Stored at version: {item.version}")
\`\`\`
EOL

# Copy necessary library files
echo "Copying library files..."
case "$(uname)" in
    "Darwin")
        cp "$LIBRARY_PATH" "$PACKAGE_DIR/"
        ;;
    "Linux")
        cp "./target/release/libvss_rust_client_ffi.so" "$PACKAGE_DIR/"
        ;;
    "MINGW"*|"MSYS"*|"CYGWIN"*)
        cp "./target/release/vss_rust_client_ffi.dll" "$PACKAGE_DIR/"
        ;;
esac

echo "Python build process completed successfully!"
echo "To install the package, cd into $BASE_DIR and run: pip install ."