#!/usr/bin/env bash

# Checks the environment to see if we have all the requisite components needed
# to upload or download from the S3 bucket.

# Set up logging.
log() { echo "⚗️ $(basename $0): $@"; }

# Move into the root folder.
cd $(dirname $(dirname $0))

for i in S3_ACCESS_KEY_ID S3_SECRET_ACCESS_KEY S3_ENDPOINT S3_BUCKET
do
  if [ "x${!i}" = "x" ]
  then
    log "missing environment variable $i"
    exit 1
  fi
done

if [ ! which s3cmd 2> /dev/null ]
then
  log "cannot find 's3cmd' to execute"
  exit 1
fi

exit 0