74 lines
1.9 KiB
Nix
74 lines
1.9 KiB
Nix
{
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lib,
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config,
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pkgs,
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...
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}: let
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mergeNmConnections = pkgs.writeShellApplication {
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name = "merge-nmconnections";
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text = ''
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CURRENT1="$1"
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CURRENT2="$2"
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NEW="$3"
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NEW1="$4"
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NEW2="$5"
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sed -i -E '/^(uuid|interface-name)=/d' "$CURRENT1"
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sed -i -E '/^(uuid|interface-name)=/d' "$CURRENT2"
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if cmp "$1" "$2"; then
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mv "$CURRENT1" "$NEW"
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else
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mv "$CURRENT1" "$NEW1"
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mv "$CURRENT2" "$NEW2"
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exit 1
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fi
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'';
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};
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in {
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options.mj.services.wifibackup = with lib.types; {
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enable = lib.mkEnableOption "enable wifi code backups to M-Active";
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fromPath = lib.mkOption {
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type = path;
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default = "/etc/NetworkManager/system-connections";
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};
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toPath = lib.mkOption {
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type = path;
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example = "/home/motiejus/M-Active/wifi";
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};
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toUser = lib.mkOption {
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type = str;
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example = "motiejus";
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};
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};
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config = with config.mj.services.wifibackup;
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lib.mkIf enable {
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systemd.timers.wifibackup = {
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description = "wifibackup to M-Active";
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wantedBy = ["timers.target"];
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timerConfig.OnCalendar = "*-*-* 22:00:00 UTC";
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};
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systemd.services.wifibackup = {
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description = "backup ${fromPath} to ${toPath}";
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serviceConfig = {
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Type = "oneshot";
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User = "root";
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ExecStart = ''
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${pkgs.unison}/bin/unison \
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-sshcmd ${pkgs.openssh}/bin/ssh \
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-sshargs "-i /etc/ssh/ssh_host_ed25519_key" \
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-batch \
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-merge "Name *.nmconnection -> ${mergeNmConnections}/bin/merge-nmconnections CURRENT1 CURRENT2 NEW NEW1 NEW2" \
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-backuploc local \
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-backup "Name *" \
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-backupprefix "" \
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-backupsuffix ".backup-$VERSION" \
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${fromPath} \
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ssh://${toUser}@localhost/${toPath}/
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'';
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};
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};
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};
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}
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