lib: use generators from Nixpkgs

(cherry picked from commit 61042c7606)

modules/lib/generators.nix

@@ -1,93 +0,0 @@
-/* Functions that generate widespread file
- * formats from nix data structures.
- *
- * They all follow a similar interface:
- * generator { config-attrs } data
- *
- * Tests can be found in ./tests.nix
- * Documentation in the manual, #sec-generators
- */
-with import <nixpkgs/lib/trivial.nix>;
-let
-  libStr = import <nixpkgs/lib/strings.nix>;
-  libAttr = import <nixpkgs/lib/attrsets.nix>;
-
-  flipMapAttrs = flip libAttr.mapAttrs;
-in
-
-rec {
-
-  /* Generate a line of key k and value v, separated by
-   * character sep. If sep appears in k, it is escaped.
-   * Helper for synaxes with different separators.
-   *
-   * mkKeyValueDefault ":" "f:oo" "bar"
-   * > "f\:oo:bar"
-   */
-  mkKeyValueDefault = sep: k: v:
-    "${libStr.escape [sep] k}${sep}${toString v}";
-
-
-  /* Generate a key-value-style config file from an attrset.
-   *
-   * mkKeyValue is the same as in toINI.
-   */
-  toKeyValue = {
-    mkKeyValue ? mkKeyValueDefault "="
-  }: attrs:
-    let mkLine = k: v: mkKeyValue k v + "\n";
-    in libStr.concatStrings (libAttr.mapAttrsToList mkLine attrs);
-
-
-  /* Generate an INI-style config file from an
-   * attrset of sections to an attrset of key-value pairs.
-   *
-   * generators.toINI {} {
-   *   foo = { hi = "${pkgs.hello}"; ciao = "bar"; };
-   *   baz = { "also, integers" = 42; };
-   * }
-   *
-   *> [baz]
-   *> also, integers=42
-   *>
-   *> [foo]
-   *> ciao=bar
-   *> hi=/nix/store/y93qql1p5ggfnaqjjqhxcw0vqw95rlz0-hello-2.10
-   *
-   * The mk* configuration attributes can generically change
-   * the way sections and key-value strings are generated.
-   *
-   * For more examples see the test cases in ./tests.nix.
-   */
-  toINI = {
-    # apply transformations (e.g. escapes) to section names
-    mkSectionName ? (name: libStr.escape [ "[" "]" ] name),
-    # format a setting line from key and value
-    mkKeyValue    ? mkKeyValueDefault "="
-  }: attrsOfAttrs:
-    let
-        # map function to string for each key val
-        mapAttrsToStringsSep = sep: mapFn: attrs:
-          libStr.concatStringsSep sep
-            (libAttr.mapAttrsToList mapFn attrs);
-        mkSection = sectName: sectValues: ''
-          [${mkSectionName sectName}]
-        '' + toKeyValue { inherit mkKeyValue; } sectValues;
-    in
-      # map input to ini sections
-      mapAttrsToStringsSep "\n" mkSection attrsOfAttrs;
-
-
-  /* Generates JSON from an arbitrary (non-function) value.
-    * For more information see the documentation of the builtin.
-    */
-  toJSON = {}: builtins.toJSON;
-
-
-  /* YAML has been a strict superset of JSON since 1.2, so we
-    * use toJSON. Before it only had a few differences referring
-    * to implicit typing rules, so it should work with older
-    * parsers as well.
-    */
-  toYAML = {}@args: toJSON args;
-}

modules/misc/gtk.nix

@@ -8,7 +8,7 @@ let
   cfg2 = config.gtk.gtk2;
   cfg3 = config.gtk.gtk3;
 
-  toGtk3Ini = (import ../lib/generators.nix).toINI {
+  toGtk3Ini = generators.toINI {
     mkKeyValue = key: value:
       let
         value' =

modules/programs/git.nix

@@ -6,8 +6,6 @@ let
 
   cfg = config.programs.git;
 
-  toINI = (import ../lib/generators.nix).toINI {};
-
   signModule = types.submodule {
     options = {
       key = mkOption {
@@ -93,7 +91,8 @@ in
       {
         home.packages = [ cfg.package ];
 
-        home.file.".gitconfig".text = toINI ini + "\n" + cfg.extraConfig;
+        home.file.".gitconfig".text =
+          generators.toINI {} ini + "\n" + cfg.extraConfig;
       }
   );
 }

modules/programs/gnome-terminal.nix

@@ -90,7 +90,7 @@ let
     }
   );
 
-  toINI = (import ../lib/generators.nix).toINI { mkKeyValue = mkIniKeyValue; };
+  toDconfIni = generators.toINI { mkKeyValue = mkIniKeyValue; };
 
   mkIniKeyValue = key: value:
     let
@@ -181,14 +181,15 @@ in
     # The dconf service needs to be installed and prepared.
     home.activation.gnomeTerminal = dagEntryAfter ["installPackages"] (
       let
-        sf = pkgs.writeText "gnome-terminal.ini" (toINI (buildIniSet cfg));
+        iniText = toDconfIni (buildIniSet cfg);
+        iniFile = pkgs.writeText "gnome-terminal.ini" iniText;
         dconfPath = "/org/gnome/terminal/legacy/";
       in
         ''
           if [[ -v DRY_RUN ]]; then
-            echo ${pkgs.gnome3.dconf}/bin/dconf load ${dconfPath} "<" ${sf}
+            echo ${pkgs.gnome3.dconf}/bin/dconf load ${dconfPath} "<" ${iniFile}
           else
-            ${pkgs.gnome3.dconf}/bin/dconf load ${dconfPath} < ${sf}
+            ${pkgs.gnome3.dconf}/bin/dconf load ${dconfPath} < ${iniFile}
           fi
         ''
     );

modules/systemd.nix

@@ -12,7 +12,7 @@ let
       || cfg.targets != {}
       || cfg.timers != {};
 
-  toSystemdIni = (import lib/generators.nix).toINI {
+  toSystemdIni = generators.toINI {
     mkKeyValue = key: value:
       let
         value' =