plomlompom.com Git - config/blob - all_new_2018/borg.sh

   1 #!/bin/sh
   2 set -e
   3
   4 standard_repo="borg"
   5 config_file="${HOME}/.borgrepos"
   6
   7 usage() {
   8     echo "Need operation as argument, one of:"
   9     echo "init"
  10     echo "store"
  11     echo "check"
  12     echo "export_keyfiles"
  13     false
  14 }
  15
  16 read_pw() {
  17     stty -echo
  18     printf "Passphrase: "
  19     read password
  20     stty echo
  21     printf "\n"
  22     export BORG_PASSPHRASE="${password}"
  23 }
  24
  25 if [ ! -f "${config_file}" ]; then
  26     echo '# file read ends at last newline' >> "${config_file}"
  27 fi
  28 if [ "$#" -lt 1 ]; then
  29     usage
  30 fi
  31 first_arg="$1"
  32 shift
  33 if [ "${first_arg}" = "init" ]; then
  34     if [ ! "$#" -eq 1 ]; then
  35         echo "Need exactly one argument: target of form user@server"
  36         false
  37     fi
  38     target="$1"
  39     echo "Initializing: ${target}"
  40     borg init --verbose --encryption=keyfile "${target}:${standard_repo}"
  41     tmp_file="/tmp/new_borgrepos"
  42     echo "${target}" > "${tmp_file}"
  43     cat "${config_file}" >> "${tmp_file}"
  44     cp "${tmp_file}" "${config_file}"
  45 elif [ "${first_arg}" = "store" ]; then
  46     if [ ! "$#" -eq 2 ]; then
  47         echo "Need precisely two arguments: archive name and path to archive."
  48         false
  49     fi
  50     archive_name=$1
  51     shift
  52     to_backup="$@"
  53     read_pw
  54     cat "${config_file}" | while read line; do
  55         first_char=$(echo "${line}" | cut -c1)
  56         if [ "${first_char}" = "#" ]; then
  57             continue
  58         fi
  59         repo="${line}:${standard_repo}"
  60         archive="${repo}::${archive_name}-{utcnow:%Y-%m-%dT%H:%M}"
  61         echo "Creating archive: ${archive}"
  62         borg create --verbose --list "${archive}" "${to_backup}"
  63     done
  64 elif [ "${first_arg}" = "check" ]; then
  65     if [ ! "$#" -eq 0 ]; then
  66         echo "Need no arguments"
  67         false
  68     fi
  69     read_pw
  70     cat "${config_file}" | while read line; do
  71         first_char=$(echo "${line}" | cut -c1)
  72         if [ "${first_char}" = "#" ]; then
  73             continue
  74         fi
  75         repo="${line}:${standard_repo}"
  76         echo "Checking repo: ${repo}"
  77         borg check --verbose "${repo}"
  78     done
  79 elif [ "${first_arg}" = "export_keyfiles" ]; then
  80     if [ ! "$#" -eq 1 ]; then
  81         echo "Need output tar file name."
  82         false
  83     fi
  84     tar_target="${1}"
  85     tmp_dir="${HOME}/.borgtmp"
  86     keyfiles_dir="${tmp_dir}/borg_keyfiles"
  87     mkdir -p "${keyfiles_dir}"
  88     cat "${config_file}" | while read line; do
  89         first_char=$(echo "${line}" | cut -c1)
  90         if [ "${first_char}" = "#" ]; then
  91             continue
  92         fi
  93         repo="${line}:${standard_repo}"
  94         borg key export "${repo}" "${keyfiles_dir}/${line}"
  95     done
  96     cur_dir="$(pwd)"
  97     cd "${tmp_dir}"
  98     target=$(basename "${keyfiles_dir}")
  99     tar cf "${tar_target}" "${target}"
 100     mv "${tar_target}" "${cur_dir}"
 101     cd
 102     rm -rf "${tmp_dir}"
 103 else
 104     usage
 105 fi