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

   1 #!/bin/sh
   2 set -e
   3
   4 standard_repo="borg"
   5 config_file="${HOME}/.borgrepos"
   6
   7 usage() {
   8     echo "Need operation as argument, one of:"
   9     echo "init"
  10     echo "store"
  11     echo "check"
  12     echo "export_keyfiles"
  13     echo "orgpush"
  14     echo "orgpull"
  15     false
  16 }
  17
  18 read_pw() {
  19     if [ "${#SSH_AGENT_PID}" -eq 0 ]; then
  20         eval $(ssh-agent)
  21         echo "ssh-add"
  22         ssh-add
  23     fi
  24     if [ "${#BORG_PASSPHRASE}" -eq 0 ]; then
  25         stty -echo
  26         printf "Borg passphrase: "
  27         read password
  28         stty echo
  29         printf "\n"
  30         export BORG_PASSPHRASE="${password}"
  31     fi
  32 }
  33
  34 if [ ! -f "${config_file}" ]; then
  35     echo '# file read ends at last newline' >> "${config_file}"
  36 fi
  37 if [ "$#" -lt 1 ]; then
  38     usage
  39 fi
  40 first_arg="$1"
  41 shift
  42 if [ "${first_arg}" = "init" ]; then
  43     if [ ! "$#" -eq 1 ]; then
  44         echo "Need exactly one argument: target of form user@server"
  45         false
  46     fi
  47     target="$1"
  48     echo "Initializing: ${target}"
  49     borg init --verbose --encryption=keyfile "${target}:${standard_repo}"
  50     tmp_file="/tmp/new_borgrepos"
  51     echo "${target}" > "${tmp_file}"
  52     cat "${config_file}" >> "${tmp_file}"
  53     cp "${tmp_file}" "${config_file}"
  54 elif [ "${first_arg}" = "store" ]; then
  55     if [ ! "$#" -eq 2 ]; then
  56         echo "Need precisely two arguments: archive name and path to archive."
  57         false
  58     fi
  59     archive_name=$1
  60     shift
  61     to_backup="$@"
  62     read_pw
  63     cat "${config_file}" | while read line; do
  64         first_char=$(echo "${line}" | cut -c1)
  65         if [ "${first_char}" = "#" ]; then
  66             continue
  67         fi
  68         repo="${line}:${standard_repo}"
  69         archive="${repo}::${archive_name}-{utcnow:%Y-%m-%dT%H:%M}"
  70         echo "Creating archive: ${archive}"
  71         borg create --verbose --list "${archive}" "${to_backup}"
  72     done
  73 elif [ "${first_arg}" = "check" ]; then
  74     if [ ! "$#" -eq 0 ]; then
  75         echo "Need no arguments"
  76         false
  77     fi
  78     read_pw
  79     cat "${config_file}" | while read line; do
  80         first_char=$(echo "${line}" | cut -c1)
  81         if [ "${first_char}" = "#" ]; then
  82             continue
  83         fi
  84         repo="${line}:${standard_repo}"
  85         echo "Checking repo: ${repo}"
  86         borg check --verbose "${repo}"
  87     done
  88 elif [ "${first_arg}" = "export_keyfiles" ]; then
  89     if [ ! "$#" -eq 1 ]; then
  90         echo "Need output tar file name."
  91         false
  92     fi
  93     tar_target="${1}"
  94     tmp_dir="${HOME}/.borgtmp"
  95     keyfiles_dir="${tmp_dir}/borg_keyfiles"
  96     mkdir -p "${keyfiles_dir}"
  97     cat "${config_file}" | while read line; do
  98         first_char=$(echo "${line}" | cut -c1)
  99         if [ "${first_char}" = "#" ]; then
 100             continue
 101         fi
 102         repo="${line}:${standard_repo}"
 103         borg key export "${repo}" "${keyfiles_dir}/${line}"
 104     done
 105     cur_dir="$(pwd)"
 106     cd "${tmp_dir}"
 107     target=$(basename "${keyfiles_dir}")
 108     tar cf "${tar_target}" "${target}"
 109     mv "${tar_target}" "${cur_dir}"
 110     cd
 111     rm -rf "${tmp_dir}"
 112 elif [ "${first_arg}" = "orgpush" ]; then
 113     archive_name="orgdir"
 114     to_backup=~/org
 115     read_pw
 116     cat "${config_file}" | while read line; do
 117         first_char=$(echo "${line}" | cut -c1)
 118         if [ "${first_char}" = "#" ]; then
 119             continue
 120         fi
 121         repo="${line}:${standard_repo}"
 122         archive="${repo}::${archive_name}-{utcnow:%Y-%m-%dT%H:%M}"
 123         echo "Creating archive: ${archive}"
 124         borg create --verbose --list "${archive}" "${to_backup}" --exclude ~/org/.git
 125     done
 126 elif [ "${first_arg}" = "orgpull" ]; then
 127     archive_name="orgdir"
 128     read_pw
 129     cd /
 130     cat "${config_file}" | while read line; do
 131         first_char=$(echo "${line}" | cut -c1)
 132         if [ "${first_char}" = "#" ]; then
 133             continue
 134         fi
 135         repo="${line}:${standard_repo}"
 136         archive=$(borg list "${repo}" | grep "${orgdir}" | tail -1 | cut -f1 -d' ')
 137         echo "Pulling archive: ${archive}"
 138         borg extract --verbose "${repo}::${archive}"
 139         break
 140     done
 141 else
 142     usage
 143 fi