Transfer users between firebase accounts

firebase.sh

#!/bin/bash
# GREEN="\e[42m"
function set_foreground_color() {
    if [ -z "$1" ]
    then
        echo -e "$(tput setaf 1)Must pass color code from 0 to 9."
        exit 1
    else
        echo $(tput setaf "$1")
    fi
}
BLACK=$(set_foreground_color 0)
RED=$(set_foreground_color 1)
GREEN=$(set_foreground_color 2)
YELLOW=$(set_foreground_color 3)
BLUE=$(set_foreground_color 4)
MAGENTA=$(set_foreground_color 5)
CYAN=$(set_foreground_color 6)
WHITE=$(set_foreground_color 7)
NOT_SET=$(set_foreground_color 8)
RESET_COLOR=$(set_foreground_color 9)


# POSITIONAL_ARGS=()

# while [[ $# -gt 0 ]]; do
#   case $1 in
#     -a|--algorithm)
#       ALGORITHM="$2"
#       shift # past argument
#       shift # past value
#       ;;
#     -k|--key)
#       BASE64_SIGNER_KEY="$2"
#       shift # past argument
#       shift # past value
#       ;;
#     -s|--separator)
#       BASE64_SALT_SEPARATOR="$2"
#       shift
#       shift
#       ;;
#     -r|--rounds)
#       ROUNDS="$2"
#       shift
#       shift
#       ;;
#     -m|--mem-cost)
#       MEM_COST="$2"
#       shift
#       shift
#       ;;
#     -*|--*)
#       echo "${RED}Unknown option $1"
#       exit 1
#       ;;
#     *)
#       POSITIONAL_ARGS+=("$1") # save positional arg
#       shift # past argument
#       ;;
#   esac
# done

# set -- "${POSITIONAL_ARGS[@]}" # restore positional parameters

# if [[ -z $ALGORITHM || -z $BASE64_SIGNER_KEY || -z $BASE64_SALT_SEPARATOR || -z $ROUNDS || -z $MEM_COST ]]; then
#     echo "${RED}One or more arguments missing."
#     echo "${BLACK}Usage: $0 -a ALGORITHM -k SIGNER_KEY -s SALT_SEPARATOR -r ROUNDS -m MEM_COST"
# fi


if ! command -v firebase &> /dev/null
then
    echo $GREEN
    echo "=== Installing firebase cli ==="
    echo $BLACK
    curl -sL https://firebase.tools | bash
fi

echo $GREEN
echo "=== Exporting users ==="

echo $GREEN
echo "=== Login firebase from old account"

echo $MAGENTA
firebase login

echo $CYAN
until read -p "Project id: " project_id && test "$project_id" != ""; do
  continue
done

until read -p "Filename ending in .json or .csv: " export_filename && test $(echo "$export_filename" | grep '[[:alnum:]]\.\(json\|csv\)\>'); do
  continue
done

if [[ "$?" -ne 0 ]]
then
  echo $RED
  echo "Login failed"
  exit 1
fi

firebase auth:export "$export_filename" --project "$project_id"
if [[ "$?" -ne 0 ]]
then
  echo $RED
  echo "Exporting failed"
  exit 1
fi

echo $GREEN
echo "=== Logout firebase ==="
firebase logout

echo $GREEN
echo "=== Login firebase from new account ==="

echo $MAGENTA
firebase login

echo $CYAN
until read -p "Importing project id: " importing_project_id && test "$importing_project_id" != ""; do
  continue
done

echo $GREEN
echo "=== Importing users ==="

echo $CYAN
echo "=== Read hash parameters ==="
until read -r -p "Algorithm: " ALGORITHM && test "$ALGORITHM" != ""; do
  continue
done
until read -r -p "Base64 signer key: " BASE64_SIGNER_KEY && test "$BASE64_SIGNER_KEY" != ""; do
  continue
done
until read -r -p "Base64 salt separator: " BASE64_SALT_SEPARATOR && test "$BASE64_SALT_SEPARATOR" != ""; do
  continue
done
until read -r -p "Rounds: " ROUNDS && test "$ROUNDS" != ""; do
  continue
done
until read -r -p "Memory cost: " MEM_COST && test "$MEM_COST" != ""; do
  continue
done

echo $MAGENTA
firebase auth:import "$export_filename"         \
    --hash-algo="$ALGORITHM"                    \
    --hash-key="$BASE64_SIGNER_KEY"             \
    --salt-separator="$BASE64_SALT_SEPARATOR"   \
    --rounds="$ROUNDS"                          \
    --mem-cost="$MEM_COST"                      \
    --project="$importing_project_id"

if [[ "$?" -ne 0 ]]
then
  echo "Error during import."
  exit 1
fi