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     echo "orgpush"
  14     echo "orgpull"
  15     false
  16 }
  17
  18 read_pw() {
  19     eval $(ssh-agent)
  20     echo "ssh-add"
  21     ssh-add
  22     stty -echo
  23     printf "Borg passphrase: "
  24     read password
  25     stty echo
  26     printf "\n"
  27     export BORG_PASSPHRASE="${password}"
  28 }
  29
  30 if [ ! -f "${config_file}" ]; then
  31     echo '# file read ends at last newline' >> "${config_file}"
  32 fi
  33 if [ "$#" -lt 1 ]; then
  34     usage
  35 fi
  36 first_arg="$1"
  37 shift
  38 if [ "${first_arg}" = "init" ]; then
  39     if [ ! "$#" -eq 1 ]; then
  40         echo "Need exactly one argument: target of form user@server"
  41         false
  42     fi
  43     target="$1"
  44     echo "Initializing: ${target}"
  45     borg init --verbose --encryption=keyfile "${target}:${standard_repo}"
  46     tmp_file="/tmp/new_borgrepos"
  47     echo "${target}" > "${tmp_file}"
  48     cat "${config_file}" >> "${tmp_file}"
  49     cp "${tmp_file}" "${config_file}"
  50 elif [ "${first_arg}" = "store" ]; then
  51     if [ ! "$#" -eq 2 ]; then
  52         echo "Need precisely two arguments: archive name and path to archive."
  53         false
  54     fi
  55     archive_name=$1
  56     shift
  57     to_backup="$@"
  58     read_pw
  59     cat "${config_file}" | while read line; do
  60         first_char=$(echo "${line}" | cut -c1)
  61         if [ "${first_char}" = "#" ]; then
  62             continue
  63         fi
  64         repo="${line}:${standard_repo}"
  65         archive="${repo}::${archive_name}-{utcnow:%Y-%m-%dT%H:%M}"
  66         echo "Creating archive: ${archive}"
  67         borg create --verbose --list "${archive}" "${to_backup}"
  68     done
  69 elif [ "${first_arg}" = "check" ]; then
  70     if [ ! "$#" -eq 0 ]; then
  71         echo "Need no arguments"
  72         false
  73     fi
  74     read_pw
  75     cat "${config_file}" | while read line; do
  76         first_char=$(echo "${line}" | cut -c1)
  77         if [ "${first_char}" = "#" ]; then
  78             continue
  79         fi
  80         repo="${line}:${standard_repo}"
  81         echo "Checking repo: ${repo}"
  82         borg check --verbose "${repo}"
  83     done
  84 elif [ "${first_arg}" = "export_keyfiles" ]; then
  85     if [ ! "$#" -eq 1 ]; then
  86         echo "Need output tar file name."
  87         false
  88     fi
  89     tar_target="${1}"
  90     tmp_dir="${HOME}/.borgtmp"
  91     keyfiles_dir="${tmp_dir}/borg_keyfiles"
  92     mkdir -p "${keyfiles_dir}"
  93     cat "${config_file}" | while read line; do
  94         first_char=$(echo "${line}" | cut -c1)
  95         if [ "${first_char}" = "#" ]; then
  96             continue
  97         fi
  98         repo="${line}:${standard_repo}"
  99         borg key export "${repo}" "${keyfiles_dir}/${line}"
 100     done
 101     cur_dir="$(pwd)"
 102     cd "${tmp_dir}"
 103     target=$(basename "${keyfiles_dir}")
 104     tar cf "${tar_target}" "${target}"
 105     mv "${tar_target}" "${cur_dir}"
 106     cd
 107     rm -rf "${tmp_dir}"
 108 elif [ "${first_arg}" = "orgpush" ]; then
 109     archive_name="orgdir"
 110     to_backup=~/org
 111     read_pw
 112     cat "${config_file}" | while read line; do
 113         first_char=$(echo "${line}" | cut -c1)
 114         if [ "${first_char}" = "#" ]; then
 115             continue
 116         fi
 117         repo="${line}:${standard_repo}"
 118         archive="${repo}::${archive_name}-{utcnow:%Y-%m-%dT%H:%M}"
 119         echo "Creating archive: ${archive}"
 120         borg create --verbose --list "${archive}" "${to_backup}" --exclude ~/org/.git
 121     done
 122 elif [ "${first_arg}" = "orgpull" ]; then
 123     archive_name="orgdir"
 124     read_pw
 125     cd /
 126     cat "${config_file}" | while read line; do
 127         first_char=$(echo "${line}" | cut -c1)
 128         if [ "${first_char}" = "#" ]; then
 129             continue
 130         fi
 131         repo="${line}:${standard_repo}"
 132         archive=$(borg list "${repo}" | grep "${orgdir}" | tail -1 | cut -f1 -d' ')
 133         echo "Pulling archive: ${archive}"
 134         borg extract --verbose "${repo}::${archive}"
 135         break
 136     done
 137 else
 138     usage
 139 fi