hosts/patate/backup/rsync-backup.nix

   1 { pkgs, ... }:
   2 with builtins;
   3 {
   4   home-manager.users.sevy = {
   5     systemd.user.services."rsync-term@" = {
   6       Unit = {
   7         Description = "rsync terminal for: %I";
   8         After = [ "graphical-session.target" ];
   9         StopWhenUnneeded = false;
  10       };
  11       Service = {
  12         Type = "simple";
  13         ExecStart =
  14           pkgs.writeShellScript "rsync-term" ''
  15             FS_LABEL=$1
  16             set -eux
  17             ${pkgs.xterm}/bin/xterm -fg white -bg black -fa Monospace -fs 6 \
  18               -title "rsync backup to: $FS_LABEL" -e "journalctl --user -f -o short \
  19               -u rsync-backup@$FS_LABEL"
  20           ''
  21           + " %I";
  22       };
  23     };
  24     systemd.user.services."rsync-backup@" = {
  25       Unit = {
  26         Description = "rsync backup: %i";
  27         Wants = [ "rsync-term@%i.service" ];
  28       };
  29       Service = {
  30         Type = "oneshot";
  31         SyslogIdentifier = "rsync-backup@%i";
  32         ExecStart =
  33           pkgs.writeShellScript "rsync-backup" ''
  34             FS_LABEL=$1
  35             set -eux
  36             DEVICE=$(${pkgs.util-linux}/bin/blkid -l -o device -t LABEL="$FS_LABEL")
  37             while ! ${pkgs.glib}/bin/gio mount --device "$DEVICE"
  38               do test ! -d /run/media/sevy/"$FS_LABEL" || break
  39                  sleep 1
  40               done
  41             ${pkgs.rsync}/bin/rsync --verbose --itemize-changes \
  42               --partial --recursive --times \
  43               --compress-level=0 --delete --delete-before \
  44               /run/media/sevy/"$FS_LABEL" \
  45               ~sevy/Documents/
  46             systemctl --user --no-block stop rsync-term@"$FS_LABEL"
  47           ''
  48           + " %I";
  49       };
  50     };
  51   };
  52 }