ledger: add structural `settings` option (#3661)

.github/CODEOWNERS

@@ -180,6 +180,7 @@ Makefile                                              @thiagokokada
 /modules/programs/lazygit.nix                         @kalhauge
 
 /modules/programs/ledger.nix                          @marsam
+/tests/modules/programs/ledger                        @marsam
 
 /modules/programs/less.nix                            @pamplemousse
 /tests/modules/programs/less                          @pamplemousse

modules/programs/ledger.nix

@@ -6,6 +6,15 @@ let
 
   cfg = config.programs.ledger;
 
+  cfgText = generators.toKeyValue {
+    mkKeyValue = key: value:
+      if isBool value then
+        optionalString value "--${key}"
+      else
+        "--${key} ${toString value}";
+    listsAsDuplicateKeys = true;
+  } cfg.settings;
+
 in {
   meta.maintainers = [ maintainers.marsam ];
 
@@ -14,6 +23,26 @@ in {
 
     package = mkPackageOption pkgs "ledger" { };
 
+    settings = mkOption {
+      type = with types; attrsOf (oneOf [ bool int str (listOf str) ]);
+      default = { };
+      example = {
+        sort = "date";
+        date-format = "%Y-%m-%d";
+        strict = true;
+        file = [
+          "~/finances/journal.ledger"
+          "~/finances/assets.ledger"
+          "~/finances/income.ledger"
+        ];
+      };
+      description = ''
+        Configuration written to <filename>$XDG_CONFIG_HOME/ledger/ledgerrc</filename>.
+        See <link xlink:href="https://www.ledger-cli.org/3.0/doc/ledger3.html#Detailed-Option-Description"/>
+        for explanation about possible values.
+      '';
+    };
+
     extraConfig = mkOption {
       type = types.lines;
       default = "";
@@ -23,9 +52,8 @@ in {
         --date-format %Y-%m-%d
       '';
       description = ''
-        Configuration written to <filename>$XDG_CONFIG_HOME/ledger/ledgerrc</filename>.
-        See <link xlink:href="https://www.ledger-cli.org/3.0/doc/ledger3.html#Detailed-Option-Description"/>
-        for explanation about possible values.
+        Extra configuration to add to
+        <filename>$XDG_CONFIG_HOME/ledger/ledgerrc</filename>.
       '';
     };
   };
@@ -34,6 +62,8 @@ in {
     home.packages = [ cfg.package ];
 
     xdg.configFile."ledger/ledgerrc" =
-      mkIf (cfg.extraConfig != "") { text = cfg.extraConfig; };
+      mkIf (cfg.settings != { } || cfg.extraConfig != "") {
+        text = cfgText + cfg.extraConfig;
+      };
   };
 }

tests/default.nix

@@ -86,6 +86,7 @@ import nmt {
     ./modules/programs/k9s
     ./modules/programs/kakoune
     ./modules/programs/kitty
+    ./modules/programs/ledger
     ./modules/programs/less
     ./modules/programs/lf
     ./modules/programs/lieer

tests/modules/programs/ledger/default.nix

@@ -0,0 +1 @@
+{ ledger = ./ledger.nix; }

tests/modules/programs/ledger/ledger.nix

@@ -0,0 +1,35 @@
+{ ... }:
+
+{
+  programs.ledger = {
+    enable = true;
+    settings = {
+      sort = "date";
+      strict = true;
+      pedantic = true;
+      leeway = 30;
+      date-format = "%Y-%m-%d";
+      file = [
+        "~/finances/journal.ledger"
+        "~/finances/assets.ledger"
+        "~/finances/income.ledger"
+      ];
+    };
+  };
+
+  test.stubs.ledger = { };
+
+  nmt.script = ''
+    assertFileContent home-files/.config/ledger/ledgerrc \
+    ${builtins.toFile "ledger-expected-settings" ''
+      --date-format %Y-%m-%d
+      --file ~/finances/journal.ledger
+      --file ~/finances/assets.ledger
+      --file ~/finances/income.ledger
+      --leeway 30
+      --pedantic
+      --sort date
+      --strict
+    ''}
+  '';
+}