setup-database-seed

#!/usr/bin/env bash

# TRAP ERRORS
set -Eeuo pipefail
trap cleanup SIGINT SIGTERM ERR
# END TRAP ERRORS

# GLOBALS
script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)
ganache_seeds_folder="./ganache_seeds"
# END GLOBALS

usage() {
  cat << EOF # remove the space between << and EOF, this is due to web plugin issue
Usage: $(basename "${BASH_SOURCE[0]}") [-s] [-a]
Handle ganache seeds
Available options:
-h, --help                    Print this help and exit
-v, --verbose                 Print script debug info
-a, --all                     Copy all seeds
-s, --seed string             One of the seeds available. One of the subfolder of ganache_seeds (eg: 'base')
EOF
  exit
}

cleanup() {
  trap - SIGINT SIGTERM ERR
  
  return 1
}

setup_colors() {
  if [[ -t 2 ]] && [[ -z "${NO_COLOR-}" ]] && [[ "${TERM-}" != "dumb" ]]; then
    NOFORMAT='\033[0m' RED='\033[0;31m' GREEN='\033[0;32m' ORANGE='\033[0;33m' BLUE='\033[0;34m' PURPLE='\033[0;35m' CYAN='\033[0;36m' YELLOW='\033[1;33m'
  else
    NOFORMAT='' RED='' GREEN='' ORANGE='' BLUE='' PURPLE='' CYAN='' YELLOW=''
  fi
}

msg() {
  echo >&2 -e "${1-}"
}

die() {
  local msg=$1
  local code=${2-1} # default exit status 1
  msg "$msg"
  exit "$code"
}

parse_params() {
  # default values of variables set from params
  seed_name=""

  while :; do
    case "${1-}" in
      -h | --help)
        usage
        ;;
      -v | --verbose)
        set -x
        ;;
      -a | --all)
        seed_name="*"
        ;;
      --no-color)
        NO_COLOR=1
        ;;
      -s=*|--seed=*) # seed param
        seed_name="${1#*=}"
        seed_name=$(echo "$seed_name" | sed 's/\(\"\|\/opt\/\)//g')
        ;;
      -v=*|--verbose=*) # verbose param
        set -x
        ;;
      -?*)
        die "Unknown option: $1"
        ;;
      *) break ;;
    esac
    shift
  done

  args=("$@")

  [[ -z "${seed_name-}" ]] && die "You need to specify a seed name using --seed=[seed_name] or use --all"

  return 0
}

# use docker busybox to copy/remove files
copy_folders() {
  local selected_seeds_folders=$1
  local volume_folder=$2
  docker run --name docker_cp_helper -v "$volume_folder:/data" busybox true

  for pathname in $selected_seeds_folders; do
    local seed_name=$(echo "$pathname" | sed "s%$ganache_seeds_folder/%%g")
    local destination_folder="/data/${seed_name}"
    msg "${BLUE}- Copying seed: ${seed_name}${NOFORMAT}"

    if [[ -d "$destination_folder" ]]; then
      docker run --rm -v "$volume_folder:/data" busybox rm -i -rf "${destination_folder}/*"
      docker cp "$pathname"/* "docker_cp_helper:$destination_folder"
    else
      docker run --rm -v "$volume_folder:/data" busybox rm -i -rf "$destination_folder"
      docker cp "$pathname" "docker_cp_helper:$destination_folder"
    fi
  done
  docker rm docker_cp_helper

  return 0
}

copy_seed_folder() {
  local ganache_volume_folder
  if [[ -z ${GANACHE_VOLUME:-} ]]; then
    ganache_volume_folder="$(grep -v '#' < .env | sed -e 's/^GANACHE_VOLUME=\(.*\)$/\1/;t;d' | sed 's/\"//g')"
  else
    ganache_volume_folder=$GANACHE_VOLUME
  fi
  local absolute_volume_folder=$(realpath "$ganache_volume_folder")
  
  local ganache_db_folder="${ganache_volume_folder}/${seed_name}"
  local ganache_db_file="${ganache_db_folder}/LOG"

  if [[ $seed_name == "*" || -f "$ganache_db_file" ]]; then
    msg "${CYAN}Copying seed to volume folder:${NOFORMAT}"
    local source_folder="$ganache_seeds_folder/$seed_name"

    copy_folders "$source_folder" "$absolute_volume_folder"

    docker run --rm -v "$absolute_volume_folder:/data" busybox mkdir -p /data/tests 

    msg "${GREEN}Seed copied successfully [${ganache_seeds_folder}/${seed_name} -> ${ganache_volume_folder}/] ${NOFORMAT}"

    return 0
  fi

  msg "${RED}Seed does not exist within 'ganache_seeds': ${seed_name} ${NOFORMAT}"
  return 1
}

# SETUP
parse_params "$@"
setup_colors

# SCRIPT LOGIC
msg "${CYAN}Read parameters:${NOFORMAT}"
msg "${BLUE}- seed_name: ${seed_name}"

cd "${script_dir}/.."
copy_seed_folder