borgmatic: add module

tests/modules/programs/borgmatic/basic-configuration.nix

@@ -0,0 +1,110 @@
+{ config, pkgs, ... }:
+
+let
+  boolToString = bool: if bool then "true" else "false";
+  backups = config.programs.borgmatic.backups;
+in {
+  config = {
+    programs.borgmatic = {
+      enable = true;
+      backups = {
+        main = {
+          location = {
+            sourceDirectories = [ "/my-stuff-to-backup" ];
+            repositories = [ "/mnt/disk1" "/mnt/disk2" ];
+            extraConfig = { one_file_system = true; };
+          };
+
+          storage = {
+            encryptionPasscommand = "fetch-the-password.sh";
+            extraConfig = { checkpoint_interval = 200; };
+          };
+
+          retention = {
+            keepWithin = "14d";
+            keepSecondly = 12;
+            extraConfig = { prefix = "hostname"; };
+          };
+
+          consistency = {
+            checks = [
+              {
+                name = "repository";
+                frequency = "2 weeks";
+              }
+              {
+                name = "archives";
+                frequency = "4 weeks";
+              }
+            ];
+
+            extraConfig = { prefix = "hostname"; };
+          };
+        };
+      };
+    };
+
+    test.stubs.borgmatic = { };
+
+    nmt.script = ''
+      config_file=$TESTED/home-files/.config/borgmatic.d/main.yaml
+      assertFileExists $config_file
+
+      declare -A expectations
+
+      expectations[location.source_directories[0]]="${
+        builtins.elemAt backups.main.location.sourceDirectories 0
+      }"
+      expectations[location.repositories[0]]="${
+        builtins.elemAt backups.main.location.repositories 0
+      }"
+      expectations[location.repositories[1]]="${
+        builtins.elemAt backups.main.location.repositories 1
+      }"
+      expectations[location.one_file_system]="${
+        boolToString backups.main.location.extraConfig.one_file_system
+      }"
+
+      expectations[storage.encryption_passcommand]="${backups.main.storage.encryptionPasscommand}"
+      expectations[storage.checkpoint_interval]="${
+        toString backups.main.storage.extraConfig.checkpoint_interval
+      }"
+
+      expectations[retention.keep_within]="${backups.main.retention.keepWithin}"
+      expectations[retention.keep_secondly]="${
+        toString backups.main.retention.keepSecondly
+      }"
+      expectations[retention.prefix]="${backups.main.retention.extraConfig.prefix}"
+
+      expectations[consistency.checks[0].name]="${
+        (builtins.elemAt backups.main.consistency.checks 0).name
+      }"
+      expectations[consistency.checks[0].frequency]="${
+        (builtins.elemAt backups.main.consistency.checks 0).frequency
+      }"
+      expectations[consistency.checks[1].name]="${
+        (builtins.elemAt backups.main.consistency.checks 1).name
+      }"
+      expectations[consistency.checks[1].frequency]="${
+        (builtins.elemAt backups.main.consistency.checks 1).frequency
+      }"
+      expectations[consistency.prefix]="${backups.main.consistency.extraConfig.prefix}"
+
+      yq=${pkgs.yq-go}/bin/yq
+
+      for filter in "''${!expectations[@]}"; do
+        expected_value="''${expectations[$filter]}"
+        actual_value="$($yq ".$filter" $config_file)"
+
+        if [[ "$actual_value" != "$expected_value" ]]; then
+          fail "Expected '$filter' to be '$expected_value' but was '$actual_value'"
+        fi
+      done
+
+      one_file_system=$($yq ".location.one_file_system" $config_file)
+      if [[ $one_file_system != "true" ]]; then
+         fail "Expected one_file_system to be true but it was $one_file_system"
+      fi
+    '';
+  };
+}

tests/modules/programs/borgmatic/default.nix

@@ -0,0 +1 @@
+{ borgmatic-program-basic-configuration = ./basic-configuration.nix; }