hosts/patate/backup/rsync-backup.nix

   1 { pkgs, lib, config, hostName, ... }:
   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 = pkgs.writeShellScript "rsync-term" ''
  14         FS_LABEL=$1
  15         set -eux
  16         ${pkgs.xterm}/bin/xterm -fg white -bg black -fa Monospace -fs 6 \
  17           -title "rsync backup to: $FS_LABEL" -e "journalctl --user -f -o short \
  18           -u rsync-backup@$FS_LABEL"
  19       '' + " %I";
  20     };
  21   };
  22   systemd.user.services."rsync-backup@" = {
  23     Unit = {
  24       Description = "rsync backup: %i";
  25       Wants = [ "rsync-term@%i.service" ];
  26       BindsTo = [ "sys-subsystem-usb-%i.device" ];
  27     };
  28     Service = {
  29       Type = "oneshot";
  30       SyslogIdentifier = "rsync-backup@%i";
  31       ExecStart = pkgs.writeShellScript "rsync-backup" ''
  32         FS_LABEL=$1
  33         set -eux
  34         DEVICE=$(${pkgs.util-linux}/bin/blkid -l -o device -t LABEL="$FS_LABEL")
  35         while ! ${pkgs.glib}/bin/gio mount --device "$DEVICE"
  36           do test ! -d /run/media/sevy/"$FS_LABEL" || break
  37              sleep 1
  38           done
  39         ${pkgs.rsync}/bin/rsync --verbose --itemize-changes \
  40           --partial --recursive --times \
  41           --compress-level=0 --delete --delete-before \
  42           /run/media/sevy/"$FS_LABEL" \
  43           ~sevy/Documents/
  44         systemctl --user --no-block stop rsync-term@"$FS_LABEL"
  45       '' + " %I";
  46     };
  47   };
  48 };
  49 }