treewide: automatically md-convert option descriptions

the conversion procedure is simple:

 - find all things that look like options, ie calls to either `mkOption`
   or `lib.mkOption` that take an attrset. remember the attrset as the
   option
 - for all options, find a `description` attribute who's value is not a
   call to `mdDoc` or `lib.mdDoc`
 - textually convert the entire value of the attribute to MD with a few
   simple regexes (the set from mdize-module.sh)
 - if the change produced a change in the manual output, discard
 - if the change kept the manual unchanged, add some text to the
   description to make sure we've actually found an option. if the
   manual changes this time, keep the converted description

this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.

1 files changed, 16 insertions, 16 deletions

diff --git a/nixos/modules/services/backup/sanoid.nix b/nixos/modules/services/backup/sanoid.nix
index 5eb031b2e9f..847b8507f70 100644
--- a/nixos/modules/services/backup/sanoid.nix
+++ b/nixos/modules/services/backup/sanoid.nix
@@ -12,37 +12,37 @@ let
 
   commonOptions = {
     hourly = mkOption {
-      description = "Number of hourly snapshots.";
+      description = lib.mdDoc "Number of hourly snapshots.";
       type = with types; nullOr ints.unsigned;
       default = null;
     };
 
     daily = mkOption {
-      description = "Number of daily snapshots.";
+      description = lib.mdDoc "Number of daily snapshots.";
       type = with types; nullOr ints.unsigned;
       default = null;
     };
 
     monthly = mkOption {
-      description = "Number of monthly snapshots.";
+      description = lib.mdDoc "Number of monthly snapshots.";
       type = with types; nullOr ints.unsigned;
       default = null;
     };
 
     yearly = mkOption {
-      description = "Number of yearly snapshots.";
+      description = lib.mdDoc "Number of yearly snapshots.";
       type = with types; nullOr ints.unsigned;
       default = null;
     };
 
     autoprune = mkOption {
-      description = "Whether to automatically prune old snapshots.";
+      description = lib.mdDoc "Whether to automatically prune old snapshots.";
       type = with types; nullOr bool;
       default = null;
     };
 
     autosnap = mkOption {
-      description = "Whether to automatically take snapshots.";
+      description = lib.mdDoc "Whether to automatically take snapshots.";
       type = with types; nullOr bool;
       default = null;
     };
@@ -50,7 +50,7 @@ let
 
   datasetOptions = rec {
     use_template = mkOption {
-      description = "Names of the templates to use for this dataset.";
+      description = lib.mdDoc "Names of the templates to use for this dataset.";
       type = types.listOf (types.str // {
         check = (types.enum (attrNames cfg.templates)).check;
         description = "configured template name";
@@ -60,9 +60,9 @@ let
     useTemplate = use_template;
 
     recursive = mkOption {
-      description = ''
+      description = lib.mdDoc ''
         Whether to recursively snapshot dataset children.
-        You can also set this to <literal>"zfs"</literal> to handle datasets
+        You can also set this to `"zfs"` to handle datasets
         recursively in an atomic way without the possibility to
         override settings for child datasets.
       '';
@@ -71,7 +71,7 @@ let
     };
 
     process_children_only = mkOption {
-      description = "Whether to only snapshot child datasets if recursing.";
+      description = lib.mdDoc "Whether to only snapshot child datasets if recursing.";
       type = types.bool;
       default = false;
     };
@@ -135,7 +135,7 @@ in
         config.process_children_only = mkAliasDefinitions (mkDefault options.processChildrenOnly or { });
       }));
       default = { };
-      description = "Datasets to snapshot.";
+      description = lib.mdDoc "Datasets to snapshot.";
     };
 
     templates = mkOption {
@@ -144,14 +144,14 @@ in
         options = commonOptions;
       });
       default = { };
-      description = "Templates for datasets.";
+      description = lib.mdDoc "Templates for datasets.";
     };
 
     settings = mkOption {
       type = types.attrsOf datasetSettingsType;
-      description = ''
+      description = lib.mdDoc ''
         Free-form settings written directly to the config file. See
-        <link xlink:href="https://github.com/jimsalterjrs/sanoid/blob/master/sanoid.defaults.conf"/>
+        <https://github.com/jimsalterjrs/sanoid/blob/master/sanoid.defaults.conf>
         for allowed values.
       '';
     };
@@ -160,9 +160,9 @@ in
       type = types.listOf types.str;
       default = [ ];
       example = [ "--verbose" "--readonly" "--debug" ];
-      description = ''
+      description = lib.mdDoc ''
         Extra arguments to pass to sanoid. See
-        <link xlink:href="https://github.com/jimsalterjrs/sanoid/#sanoid-command-line-options"/>
+        <https://github.com/jimsalterjrs/sanoid/#sanoid-command-line-options>
         for allowed options.
       '';
     };