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53 lines
1.8 KiB
53 lines
1.8 KiB
7 years ago
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#!/bin/bash
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set -e;
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# disable verbose logging
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ENV_DISPLAY_WARNINGS=false
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# ensure the user environment is correctly set up
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function env_check(){
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if [ -z "${DATA_DIR}" ]; then
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echo "You must set the DATA_DIR env var to a valid directory on your local machine."
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echo
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echo "Edit the '.env' file in this repository, update the DATA_DIR to a valid path and try again."
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echo "Alternatively, you can set the variable in your environment using a command such as 'export DATA_DIR=/tmp'."
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exit 1
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elif [ ! -d "${DATA_DIR}" ]; then
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printf "The directory specified by DATA_DIR does not exist: %s\n" ${DATA_DIR}
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echo
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echo "Edit the '.env' file in this repository, update the DATA_DIR to a valid path and try again."
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echo "Alternatively, you can set the variable in your environment using a command such as 'export DATA_DIR=/tmp'."
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exit 1
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fi
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}
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# loads environment vars from a stream (such as a file)
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# example: env_load_stream < .env
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function env_load_stream(){
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while IFS='=' read -r key value; do
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([ -z $key ] || [ -z $value ]) && printf 'Invalid environment var "%s=%s"\n' $key $value && exit 1
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if [ -z ${!key} ]; then
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export "${key}=${value}"
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elif $ENV_DISPLAY_WARNINGS; then
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printf '[warn] skip setting environment var "%s=%s", already set "%s=%s"\n' $key $value $key ${!key}
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fi
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done
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}
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# ensure locale is correctly set?
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# export LC_ALL=en_US.UTF-8
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# load DATA_DIR and other vars from docker-compose .env file
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# note: strips comments and empty lines
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[ -f .env ] && env_load_stream < <(grep -v '^$\|^\s*$\#' .env)
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# use the default compose file unless one was specified
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# if [ -z "${COMPOSE_FILE}" ]; then
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# if [ ! -f "docker-compose.yml" ]; then
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# export COMPOSE_FILE="${BASEDIR}/docker-compose.yml"
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# fi
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# fi
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# ensure the user env is correctly set up
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env_check
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