import-python-reqs-to-poetry.sh

#!/usr/bin/env bash

# This is not an ideal solution (currently) to export into production/development specific
# requirements.

# Capture current system time
CURRENT_TIME=$(date +"%Y.%m.%d-%H.%M.%S")

# Capture all Python packages currently installed
pip3 list --not-required --format freeze --exclude lockfile --exclude pip --exclude setuptools >"requirements.txt.${CURRENT_TIME}"


# Install Poetry
pip3 install poetry

# Verify that Poetry has been initialized
if [ ! -f pyproject.toml ]; then
    poetry init -n
fi

# Add all currently install Python packages to Poetry
cat "requirements.txt.${CURRENT_TIME}" | grep -E '^[^# ]' | cut -d= -f1 | xargs -n 1 poetry add

# Make a backup copy of an existing requirements.txt file for future reference
if [ -f requirements.txt ]; then
    mv requirements.txt "requirements.txt.${CURRENT_TIME}.old"
fi

# Export Poetry packages back out to a new requirements.txt
poetry export --without-hashes >requirements.txt