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activate-dev-env

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#!/usr/bin/env bash

# Helper script to create (if required) and activate a virtual environment for

# a specified PYTHON_BINARY (python|python2|python3) and install dependencies

# required for testing and development.

#

# Usage: source $0 [PYTHON_BINARY]

# use env python by default

PYTHON_BIN=python2

VIRTIALENV_CMD=virtualenv

SETUP_PY="setup.py"

DEV_MODULE_DIR="bugzilla"

DIR_PREFIX="dev-env"

if [ $# -ne 0 ]; then

PYTHON_BIN=$1

fi

function activate()

{

DIR_NAME=$1

echo "INFO: Activating virtualenv at ${DIR_NAME}"

source ${DIR_NAME}/bin/activate

}

function virtualize()

{

PROMPT=$(basename ${PYTHON_BIN})

DIR_NAME="${DIR_PREFIX}-${PROMPT}"

if [ ! -d ${DIR_NAME} ]; then

echo "INFO: Creating virtualenv ${DIR_NAME}"

${VIRTIALENV_CMD} -p $(which ${PYTHON_BIN}) \

--prompt "${PROMPT}" ${DIR_NAME}

fi

if [ -d ${DIR_NAME} ]; then

activate $DIR_NAME || exit 1

for REQ in $(find ./ -maxdepth 1 -type f -name "*requirements.txt"); do

pip install -qr "${REQ}"

done

else

echo >&2 "ERROR: Failed to activate virtualenv."

fi

}

if ! command -v ${VIRTIALENV_CMD} >/dev/null 2>&1; then

# We require virtuaenv to be available

echo >&2 "ERROR: virtualenv command not found"

elif ! command -v $PYTHON_BIN >/dev/null 2>&1; then

# Ensure PYTHON_BIN is valid

echo >&2 "ERROR: ${PYTHON_BIN} command not found"

elif ! ${PYTHON_BIN} --version 2>&1 | grep -q '^Python'; then

# Ensure PYTHON_BIN is python

echo >&2 "ERROR: '${PYTHON_BIN} --version' returned an invalid response. Is ${PYTHON_BIN} really python?"

elif [ ! -f ${SETUP_PY} ]; then

echo >&2 "ERROR: ${SETUP_PY} not found"

else

virtualize

fi