104 lines
2.3 KiB
Nix
104 lines
2.3 KiB
Nix
{ pkgs, util, __findFile, ... } @args: let
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bash = import <home/program/bash> args;
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script = pkgs.writeText "backupScript" ''
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source ${bash.modulesFile}
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function report() {
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echo "''${*}"
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notify "''${*}"
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}
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# Define constants.
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path_src="/storage/hot"
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path_mount="/storage/cold_1"
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path_backup="''${path_mount}/backup"
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path_container="''${path_backup}/home"
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path_media="/storage/cold_1 /storage/cold_2"
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# Check if backup drive is mounted.
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if [ ! -f "''${path_mount}"/.mount ]; then
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report "Backup : ''${path_mount} not mounted!"
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exit 1
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fi
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# Check if hot storage is mounted.
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if [ ! -f "''${path_src}"/.mount ]; then
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report "Backup : ''${path_src} not mounted!"
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exit 1
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fi
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# Cd to src storage.
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cd "''${path_src}"
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# Save media list.
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find ''${path_media} -type d > ''${path_backup}/cold/ColdMedia.txt || report "Backup : Failed to save media list!"
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cd ''${path_backup}/cold/
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archive ColdMedia.txt && rm ColdMedia.txt || report "Backup : Failed to archive media list!"
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cd -
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# Backup containers.
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container=$(archive container/)
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bupsize=$(tdu ''${container} | awk '{print $1}')
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mv ''${container} ''${path_container}/ || report "Backup : Failed to save containers!"
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# Backup some media.
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cd ''${path_src}
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paper=$(archive paper/)
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mv ''${paper} ''${path_backup}/paper/ || report "Backup : Failed to save paper!"
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cd -
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# Prune media copies.
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cd ''${path_backup}/paper/
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archive_prune Paper 7
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cd -
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cd ''${path_backup}/cold/
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archive_prune ColdMediaTxt 30
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cd -
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# Prune old container copies.
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cd ''${path_container}
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archive_prune Container 7
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cd -
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# Prune game saves.
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cd "''${path_backup}/save/"
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archive_prune
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cd -
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# Sync writes.
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sync
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# Notify completion & size.
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notify_silent "Backup : Complete ''${bupsize}."
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echo "Backup : Complete ''${bupsize}."
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'';
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in {
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systemd.services.backup = util.mkStaticSystemdService {
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enable = true;
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description = "Home system backup.";
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serviceConfig.Type = "oneshot";
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path = with pkgs; [
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bashInteractive
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curl
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gawk
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gnutar
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procps
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pv
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xz
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];
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script = ''
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${pkgs.bashInteractive}/bin/bash ${script}
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'';
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};
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systemd.timers.backup = {
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timerConfig = {
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OnCalendar = "*-*-* 06:00:00";
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Persistent = true;
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Unit = "backup.service";
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};
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wantedBy = [ "timers.target" ];
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};
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}
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