simple backup

bash_simple_backup.sh

#!/bin/bash
#quick backup script to mess with nvim config

## backup all files except those defined in ExcludeArray
## NOTE: files in list will not be touched
## other (newly created/renamed) files are deleted before restoring

#safer defaults https://bertvv.github.io/cheat-sheets/Bash.html
set -o errexit   # abort on nonzero exitstatus
set -o nounset   # abort on unbound variable
set -o pipefail  # don't hide errors within pipes

NVIM_PATH="${HOME}/.config/nvim"
BACKUP_FOLDER="backup"
declare -a ExcludeArray=("${BACKUP_FOLDER}" "backup.sh" "beta_software" "install" "list")

if [ -d "${NVIM_PATH}/${BACKUP_FOLDER}" ]; then
  echo "backup folder exists, please remove folder ${BACKUP_FOLDER}"
  echo "exiting.."
  exit 0
fi
mkdir ${BACKUP_FOLDER}

# get all files at top level, that are not in ExcludeArray
for i in "${NVIM_PATH}/*"; do
  echo ${i}
  if [[ " ${ExcludeArray[@]} " =~ " ${i} " ]]; then
    cp -r "${i}" "${NVIM_PATH}/${BACKUP_FOLDER}"
  fi
done

echo "generate restore commands.."

cat > "${NVIM_PATH}/${BACKUP_FOLDER}/restore.sh" <<EOL
#!/bin/bash
# execute this script with
# bash restore.sh

declare -a ExcludeArray=($BACKUP_FOLDER "backup.sh" "beta_software" "install" "list")
# clean nvim config
for i in "$NVIM_PATH/*"; do
  if [[ " ${ExcludeArray[@]} " =~ " ${i} " ]]; then
    echo rm -fr "${i}"
  fi
done
for i in "${NVIM_PATH}/${BACKUP_FOLDER}/*"; do
  if [[ "${i}" -eq "${NVIM_PATH}/${BACKUP_FOLDER}/restore.sh" ]]; then
    continue
  fi
  if [[ " ${ExcludeArray[@]} " =~ " ${i} " ]]; then
    echo cp -r "${i}"
  fi
done

EOL

echo "done. have fun configuring nvim!"