python_version_scan_docker.sh

python_version_scan_docker.sh

#!/bin/bash

# Define the range of Python versions to test
versions=("3.12" "3.11" "3.10" "3.9" "3.8" "3.7")

# Function to update pyproject.toml
update_pyproject() {
    sed -i 's/python = "^[0-9.]*"/python = "^'"$1"'"/' pyproject.toml
}

# Store original Python version
original_version=$(grep '^python = ' pyproject.toml | cut -d'"' -f2)

# Create a temporary Dockerfile
cat << EOF > Dockerfile.temp
FROM python:VERSION-slim

RUN pip install poetry

WORKDIR /app
COPY . /app

RUN poetry config virtualenvs.create false \
    && poetry install --no-interaction --no-ansi

CMD poetry run pytest
EOF

# Test versions
for version in "${versions[@]}"; do
    echo "Testing Python $version"
    update_pyproject $version
    
    # Create a version-specific Dockerfile
    sed "s/VERSION/$version/" Dockerfile.temp > Dockerfile
    
    # Build and run Docker container
    if docker build -t python-test:$version . && docker run --rm python-test:$version; then
        echo "Python $version is compatible"
        lowest_compatible=$version
    else
        echo "Python $version is not compatible"
        break
    fi
done

# Clean up
rm Dockerfile Dockerfile.temp

if [ -n "$lowest_compatible" ]; then
    echo "Lowest compatible Python version: $lowest_compatible"
    update_pyproject $lowest_compatible
    echo "Updated pyproject.toml to use Python ^$lowest_compatible"
else
    echo "No compatible Python version found"
    echo "Restoring original Python version constraint"
    update_pyproject ${original_version#^}
fi