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nixos/duplicity: format

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Guillaume Girol 2021-04-25 12:00:00 +00:00 • committed by Symphorien Gibol
parent e019872af8
commit 166d5cc851
1 changed files with 20 additions and 17 deletions
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37
nixos/modules/services/backup/duplicity.nix
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@ -1,16 +1,17 @@
{ config, lib, pkgs, ...}: { config, lib, pkgs, ... }:
with lib; with lib;
let let
cfg = config.services.duplicity; cfg = config.services.duplicity;
stateDirectory = "/var/lib/duplicity"; stateDirectory = "/var/lib/duplicity";
localTarget = if hasPrefix "file://" cfg.targetUrl localTarget =
if hasPrefix "file://" cfg.targetUrl
then removePrefix "file://" cfg.targetUrl else null; then removePrefix "file://" cfg.targetUrl else null;
in { in
{
options.services.duplicity = { options.services.duplicity = {
enable = mkEnableOption "backups with duplicity"; enable = mkEnableOption "backups with duplicity";
@ -24,7 +25,7 @@ in {
include = mkOption { include = mkOption {
type = types.listOf types.str; type = types.listOf types.str;
default = []; default = [ ];
example = [ "/home" ]; example = [ "/home" ];
description = '' description = ''
List of paths to include into the backups. See the FILE SELECTION List of paths to include into the backups. See the FILE SELECTION
@ -35,7 +36,7 @@ in {
exclude = mkOption { exclude = mkOption {
type = types.listOf types.str; type = types.listOf types.str;
default = []; default = [ ];
description = '' description = ''
List of paths to exclude from backups. See the FILE SELECTION section in List of paths to exclude from backups. See the FILE SELECTION section in
<citerefentry><refentrytitle>duplicity</refentrytitle> <citerefentry><refentrytitle>duplicity</refentrytitle>
@ -82,7 +83,7 @@ in {
extraFlags = mkOption { extraFlags = mkOption {
type = types.listOf types.str; type = types.listOf types.str;
default = []; default = [ ];
example = [ "--full-if-older-than" "1M" ]; example = [ "--full-if-older-than" "1M" ];
description = '' description = ''
Extra command-line flags passed to duplicity. See Extra command-line flags passed to duplicity. See
@ -101,15 +102,17 @@ in {
serviceConfig = { serviceConfig = {
ExecStart = '' ExecStart = ''
${pkgs.duplicity}/bin/duplicity ${escapeShellArgs ( ${pkgs.duplicity}/bin/duplicity ${escapeShellArgs (
[ [
cfg.root cfg.root
cfg.targetUrl cfg.targetUrl
"--archive-dir" stateDirectory "--archive-dir"
] stateDirectory
++ concatMap (p: [ "--include" p ]) cfg.include ]
++ concatMap (p: [ "--exclude" p ]) cfg.exclude ++ concatMap (p: [ "--include" p ]) cfg.include
++ cfg.extraFlags)} ++ concatMap (p: [ "--exclude" p ]) cfg.exclude
++ cfg.extraFlags
)}
''; '';
PrivateTmp = true; PrivateTmp = true;
ProtectSystem = "strict"; ProtectSystem = "strict";
@ -130,7 +133,7 @@ in {
assertions = singleton { assertions = singleton {
# Duplicity will fail if the last file selection option is an include. It # Duplicity will fail if the last file selection option is an include. It
# is not always possible to detect but this simple case can be caught. # is not always possible to detect but this simple case can be caught.
assertion = cfg.include != [] -> cfg.exclude != [] || cfg.extraFlags != []; assertion = cfg.include != [ ] -> cfg.exclude != [ ] || cfg.extraFlags != [ ];
message = '' message = ''
Duplicity will fail if you only specify included paths ("Because the Duplicity will fail if you only specify included paths ("Because the
default is to include all files, the expression is redundant. Exiting default is to include all files, the expression is redundant. Exiting