bin/impala-shell.sh

#!/bin/bash
#
# Licensed to the Apache Software Foundation (ASF) under one
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# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

set -euo pipefail

# This script runs the impala shell from a dev environment.
PYTHONPATH=${PYTHONPATH:-}
SHELL_HOME=${IMPALA_SHELL_HOME:-${IMPALA_HOME}/shell}

# ${IMPALA_HOME}/bin has bootstrap_toolchain.py, required by bootstrap_virtualenv.py
PYTHONPATH=${PYTHONPATH}:${IMPALA_HOME}/bin
PYTHONPATH=${PYTHONPATH}:${SHELL_HOME}

export LD_LIBRARY_PATH=":$(PYTHONPATH=${PYTHONPATH} \
  python "$IMPALA_HOME/infra/python/bootstrap_virtualenv.py" \
  --print-ld-library-path)"

IMPALA_PY_DIR="$(dirname "$0")/../infra/python"
IMPALA_PY3_ENV_DIR="${IMPALA_PY_DIR}/env-gcc${IMPALA_GCC_VERSION}-py3"
# Allow overriding the python executable
IMPALA_PYTHON_EXECUTABLE="${IMPALA_PYTHON_EXECUTABLE:-${IMPALA_PY3_ENV_DIR}/bin/python3}"

# Note that this uses the external system python executable.
# IMPALA-14620: At some point, we need to explicitly invoke python3 instead of python
# here. This is not an issue if python-is-python3 is installed.
PYTHONPATH=${PYTHONPATH} python "${IMPALA_PY_DIR}/bootstrap_virtualenv.py" --python3

# Enable remote debugging if port was specified via environment variable
if [[ ${IMPALA_SHELL_DEBUG_PORT:-0} -ne 0 ]]; then
  echo "installing debugpy if needed"
  ${IMPALA_PY_ENV_DIR}/bin/pip install debugpy
  echo "impala python shell waiting for remote debugging connection on port" \
       "${IMPALA_SHELL_DEBUG_PORT}"
  EXTRA_ARGS=" -m debugpy --listen ${IMPALA_SHELL_DEBUG_PORT} --wait-for-client"
fi

# This uses the python executable in the impala python env
PYTHONIOENCODING='utf-8' PYTHONPATH=${PYTHONPATH} \
  exec "${IMPALA_PYTHON_EXECUTABLE}" ${EXTRA_ARGS:-} -m "impala_shell.impala_shell" "$@"