From d32bd28650e6faabad3d348ecb144aa30d8a8c50 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leonardo=20Eug=C3=AAnio?= <lelgenio@disroot.org>
Date: Thu, 11 May 2023 11:20:47 -0300
Subject: [PATCH] helix: add helix pager

---
 scripts/default.nix     |  2 ++
 scripts/helix-man-pager |  3 +++
 scripts/helix-pager     | 28 ++++++++++++++++++++++++++++
 user/man.nix            | 26 +++++++++++++++++++-------
 4 files changed, 52 insertions(+), 7 deletions(-)
 create mode 100755 scripts/helix-man-pager
 create mode 100644 scripts/helix-pager

diff --git a/scripts/default.nix b/scripts/default.nix
index b4f57f8..11086dd 100644
--- a/scripts/default.nix
+++ b/scripts/default.nix
@@ -31,6 +31,8 @@ create_scripts
     _sway_idle_toggle = [ final.swayidle ];
     kak-pager = [ fish final._diffr ];
     kak-man-pager = [ final.kak-pager ];
+    helix-pager = [ fish final._diffr ];
+    helix-man-pager = [ final.helix-pager ];
     musmenu = [ mpc-cli final.wdmenu trash-cli xdg-user-dirs libnotify sd wl-clipboard ];
     showkeys =
       [ ]; # This will not work unless programs.wshowkeys is enabled systemwide
diff --git a/scripts/helix-man-pager b/scripts/helix-man-pager
new file mode 100755
index 0000000..a9c79d7
--- /dev/null
+++ b/scripts/helix-man-pager
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+col -b -x | hx
diff --git a/scripts/helix-pager b/scripts/helix-pager
new file mode 100644
index 0000000..1a7f8cf
--- /dev/null
+++ b/scripts/helix-pager
@@ -0,0 +1,28 @@
+#!/usr/bin/env fish
+
+if test (count $argv) -ne 0
+    for i in $argv
+        cat "$i"
+    end | eval (status filename)
+    exit 0
+end
+
+set term_line_count (tput lines)
+
+while read line
+    set -a input_lines "$line"
+
+    set input_line_count (printf "%s\n" $input_lines | wc -l)
+
+    if test "$term_line_count" -lt "$input_line_count"
+        begin
+            printf "%s\n" $input_lines
+            cat
+        end | hx
+
+        exit 0
+    end
+
+end
+
+printf "%s\n" $input_lines
diff --git a/user/man.nix b/user/man.nix
index 25c5ad0..5b80a4e 100644
--- a/user/man.nix
+++ b/user/man.nix
@@ -1,16 +1,28 @@
 { config, pkgs, lib, inputs, ... }:
-let inherit (pkgs.uservars) key theme color accent font desktop;
-in {
-  config = {
-    programs.man = {
-      enable = true;
-      generateCaches = true;
+let inherit (pkgs.uservars) key theme color accent font desktop editor;
+  pagers = rec {
+    kak = kakoune;
+    kakoune = {
+      PAGER = "${pkgs.kak-pager}/bin/kak-pager";
+      MANPAGER = "${pkgs.kak-man-pager}/bin/kak-man-pager";
+      SYSTEMD_PAGER = "${pkgs.kak-pager}/bin/kak-pager";
+      SYSTEMD_PAGERSECURE = "1";
     };
-    home.sessionVariables = {
+    hx = helix;
+    helix = {
       PAGER = "${pkgs.kak-pager}/bin/kak-pager";
       MANPAGER = "${pkgs.kak-man-pager}/bin/kak-man-pager";
       SYSTEMD_PAGER = "${pkgs.kak-pager}/bin/kak-pager";
       SYSTEMD_PAGERSECURE = "1";
     };
   };
+in
+{
+  config = {
+    programs.man = {
+      enable = true;
+      generateCaches = true;
+    };
+    home.sessionVariables = pagers.${editor};
+  };
 }