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

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