scripts/in_container/run_generate_constraints.sh

#!/usr/bin/env bash
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# shellcheck source=scripts/in_container/_in_container_script_init.sh
. "$( dirname "${BASH_SOURCE[0]}" )/_in_container_script_init.sh"

CONSTRAINTS_DIR="/files/constraints-${PYTHON_MAJOR_MINOR_VERSION}"

LATEST_CONSTRAINT_FILE="${CONSTRAINTS_DIR}/original-constraints-${PYTHON_MAJOR_MINOR_VERSION}.txt"
CURRENT_CONSTRAINT_FILE="${CONSTRAINTS_DIR}/constraints-${PYTHON_MAJOR_MINOR_VERSION}.txt"

mkdir -pv "${CONSTRAINTS_DIR}"

CONSTRAINTS_LOCATION="https://raw.githubusercontent.com/apache/airflow/${DEFAULT_CONSTRAINTS_BRANCH}/constraints-${PYTHON_MAJOR_MINOR_VERSION}.txt"
readonly CONSTRAINTS_LOCATION

curl --connect-timeout 60  --max-time 60 "${CONSTRAINTS_LOCATION}" --output "${LATEST_CONSTRAINT_FILE}"

echo
echo "Freezing constraints to ${CURRENT_CONSTRAINT_FILE}"
echo

pip freeze | sort | \
    grep -v "apache_airflow" | \
    grep -v "@" | \
    grep -v "/opt/airflow" >"${CURRENT_CONSTRAINT_FILE}"

echo
echo "Constraints generated in ${CURRENT_CONSTRAINT_FILE}"
echo

set +e
diff --color=always "${LATEST_CONSTRAINT_FILE}" "${CURRENT_CONSTRAINT_FILE}"

exit 0