feat(i3status-rust): show number of hot weechat buffers

lib/i3status-rust.nix

@@ -36,6 +36,7 @@ in {
   icons.name = "awesome6";
   icons.overrides.rss = "";
   icons.overrides.vpn = "";
+  icons.overrides.irc = "";
   block = [
     {
       block = "weather";
@@ -142,6 +143,19 @@ in {
       json = true;
       hide_when_empty = true;
     }
+    {
+      block = "custom";
+      interval = 60;
+      command = pkgs.writers.writeDash "weechat" ''
+        ssh makanek cat /var/lib/weechat/hotlist.txt | sed 's/,/\n/g' | wc -l | jq '{
+          text: (if . > 0 then . | tostring else "" end),
+          state: (if . > 0 then "Info" else "Idle" end),
+          icon: "irc"
+        }'
+      '';
+      json = true;
+      hide_when_empty = true;
+    }
     {
       block = "custom";
       interval = 5;

packages/weechatScripts/hotlist2extern.nix

@@ -0,0 +1,33 @@
+{
+  stdenv,
+  lib,
+  fetchurl,
+  weechat,
+}:
+stdenv.mkDerivation {
+  pname = "hotlist2extern";
+  version = "1.0";
+
+  src = fetchurl {
+    url = "https://raw.githubusercontent.com/weechat/scripts/dd627975cf2e464f206f8006cb3963c8ee82044c/perl/hotlist2extern.pl";
+    sha256 = "1flpikm1kq6m9rh3hmafni9f2yi1b90w539k3hj55a5c9gddp2lr";
+  };
+
+  dontUnpack = true;
+
+  installPhase = ''
+    mkdir -p $out/share
+    cp $src $out/share/hotlist2extern.pl
+  '';
+
+  passthru = {
+    scripts = ["hotlist2extern.pl"];
+  };
+
+  meta = with lib; {
+    inherit (weechat.meta) platforms;
+    description = "Give hotlist to an external file/program";
+    license = licenses.gpl3;
+    maintainers = with maintainers; [kmein];
+  };
+}

systems/makanek/weechat.nix

@@ -5,6 +5,7 @@
 }: let
   inherit (import <niveum/lib>) kieran;
   relayPassword = lib.fileContents <system-secrets/weechat/relay>;
+  weechatHome = "/var/lib/weechat";
 in {
   systemd.services.weechat = let
     tmux = pkgs.writers.writeDash "tmux" ''
@@ -31,6 +32,7 @@ in {
           pkgs.weechatScripts.weechat-autosort
           pkgs.weechatScripts.colorize_nicks
           pkgs.weechatScripts.weechat-matrix
+          (pkgs.callPackage <niveum/packages/weechatScripts/hotlist2extern.nix> {})
         ];
         settings = let
           nick = "kmein";
@@ -106,6 +108,13 @@ in {
             };
           };
           logger.level.irc.news = 0;
+          plugins.var.perl.hotlist2extern = {
+            external_command_hotlist = "echo %X > ${weechatHome}/hotlist.txt";
+            external_command_hotlist_empty = "echo -n %X > ${weechatHome}/hotlist.txt";
+            lowest_priority = "2";
+            use_title = "off";
+            delimiter = ",";
+          };
           matrix.server.nibbana = {
             address = "nibbana.jp";
             username = nick;
@@ -163,7 +172,7 @@ in {
     wantedBy = ["multi-user.target"];
     restartIfChanged = true;
     path = [pkgs.alacritty.terminfo];
-    environment.WEECHAT_HOME = "/var/lib/weechat";
+    environment.WEECHAT_HOME = weechatHome;
     preStart = "${pkgs.coreutils}/bin/rm $WEECHAT_HOME/*.conf";
     script = "${tmux} -2 new-session -d -s IM ${weechat}/bin/weechat";
     preStop = "${tmux} kill-session -t IM";