Refactor newsboat config to nix

1 files changed, 59 insertions, 0 deletions

diff --git a/modules/newsboat.home/default.nix b/modules/newsboat.home/default.nix
new file mode 100644
index 0000000..aedf7db
--- /dev/null
+++ b/modules/newsboat.home/default.nix
@@ -0,0 +1,59 @@
+{ lib, pkgs, ... }:
+let
+  cfg = import ./config.nix;
+  urls = mergeFeeds [ (import ./public-feed.nix) privateFeed ];
+  privateFeed = let feedpath = ./private-feed.nix;
+    in if builtins.pathExists feedpath then import feedpath else {};
+
+  mergeFeeds = feeds: lib.attrsets.foldAttrs (value: acc:
+    if lib.isList value
+      then value ++ (if acc != null then acc else [])
+      else value // (if acc != null then acc else {})
+  ) null ([{ queries = {}; visible = []; hidden = []; }] ++ feeds);
+
+  joinLines = lib.concatStringsSep "\n";
+  joinWords = lib.concatStringsSep " ";
+
+  toUrl = url: joinWords (lib.map toString [
+    url.url
+    (lib.optional (url ? "hidden" && url.hidden) "!")
+    (lib.optional (url ? "tags") (joinWords url.tags))
+    (lib.optional (url ? "title") ''"~${url.title}"'')
+  ]);
+
+  toUrls = urls: joinLines (lib.map toUrl urls);
+
+  toQueries = queries: joinLines
+    (lib.mapAttrsToList (key: val: "\"query:${key}:${val}\"") queries);
+
+  # { raw = a; } -> a | bool -> yesno | string -> "string" | number
+  toConfigValue = val:
+    if val ? "raw" then toString val.raw
+    else if lib.isBool val then lib.hm.booleans.yesNo val
+    else if lib.isString val then ''"${val}"''
+    else toString val;
+
+  cfgFileContent = joinLines [
+    (joinLines
+      (lib.mapAttrsToList (key: val: "${key} ${toConfigValue val}") cfg.config))
+    (joinLines
+      (lib.mapAttrsToList (key: val: "bind-key ${key} ${val}") cfg.keys))
+    (joinLines
+      (lib.mapAttrsToList (key: val: "macro ${key} ${val}") cfg.macros))
+    cfg.extraConfig
+  ];
+
+  urlsFileContent = joinLines [
+    (toQueries urls.queries)
+    (toUrls urls.visible)
+    (toUrls (lib.map (x: x // { hidden = true; }) urls.hidden))
+  ];
+in {
+  home.packages = [ pkgs.newsboat ];
+
+  xdg.configFile = {
+    "newsboat/urls".text = urlsFileContent;
+    "newsboat/config".text = cfgFileContent;
+    "newsboat/opener.sh".source = ./opener.sh;
+  };
+}