From fece49bd62f4dc0636c0816a65733e260433035b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Tue, 27 Dec 2022 04:24:56 +0100
Subject: [PATCH 1/3] vte: allow to build without any gtk

---
 pkgs/development/libraries/vte/default.nix | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/libraries/vte/default.nix b/pkgs/development/libraries/vte/default.nix
index 7a998b409c2b..b97eecc280a2 100644
--- a/pkgs/development/libraries/vte/default.nix
+++ b/pkgs/development/libraries/vte/default.nix
@@ -33,7 +33,8 @@ stdenv.mkDerivation rec {
   pname = "vte";
   version = "0.74.1";
 
-  outputs = [ "out" "dev" "devdoc" ];
+  outputs = [ "out" "dev" ]
+    ++ lib.optional (gtkVersion != null) "devdoc";
 
   src = fetchurl {
     url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
@@ -75,9 +76,11 @@ stdenv.mkDerivation rec {
     systemd
   ];
 
-  propagatedBuildInputs = assert (gtkVersion == "3" || gtkVersion == "4"); [
-    # Required by vte-2.91.pc.
-    (if gtkVersion == "3" then gtk3 else gtk4)
+  # Required by vte-2.91.pc.
+  propagatedBuildInputs = lib.optionals (gtkVersion != null) [
+    (assert (gtkVersion == "3" || gtkVersion == "4");
+    if gtkVersion == "3" then gtk3 else gtk4)
+  ] ++ [
     glib
     pango
   ];

From 8cd995ce1341e90e7433568d1c98d657276beceb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Tue, 27 Dec 2022 04:25:05 +0100
Subject: [PATCH 2/3] nixos/no-x-libs: add vte

---
 nixos/modules/config/no-x-libs.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nixos/modules/config/no-x-libs.nix b/nixos/modules/config/no-x-libs.nix
index ec26d4b12eff..bfbef6172cb5 100644
--- a/nixos/modules/config/no-x-libs.nix
+++ b/nixos/modules/config/no-x-libs.nix
@@ -78,6 +78,7 @@ with lib;
       # translateManpages -> perlPackages.po4a -> texlive-combined-basic -> texlive-core-big -> libX11
       util-linux = super.util-linux.override { translateManpages = false; };
       vim-full = super.vim-full.override { guiSupport = false; };
+      vte = super.vte.override { gtkVersion = null; };
       zbar = super.zbar.override { enableVideo = false; withXorg = false; };
     }));
   };

From 577bb277aa3ccab68942424aca71cf44b03b39df Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Wed, 19 Jul 2023 13:54:16 +0200
Subject: [PATCH 3/3] nixos/vte: use vte without any GUI dependencies
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

we just need the script, borrowed from environment.noXLibs
On my system this reduced the closure size by ~100MB

 ▶ nix path-info -Sh /nix/var/nix/profiles/system-76-link/
/nix/store/adybwlzyf3qa56irabblzlyjsr74amb9-nixos-system-francium-23.11    6.5G
 ▶ nix path-info -S /nix/var/nix/profiles/system-76-link/
/nix/store/adybwlzyf3qa56irabblzlyjsr74amb9-nixos-system-francium-23.11  6956572064

 ▶ nix path-info -Sh /nix/var/nix/profiles/system-77-link/
/nix/store/wgs6wlq2i911q2r1n5fqbs9vzmp8qy26-nixos-system-francium-23.11    6.4G
 ▶ nix path-info -S /nix/var/nix/profiles/system-77-link/
/nix/store/wgs6wlq2i911q2r1n5fqbs9vzmp8qy26-nixos-system-francium-23.11  6856836056
---
 nixos/modules/config/vte.nix               | 4 +---
 pkgs/development/libraries/vte/default.nix | 2 +-
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/nixos/modules/config/vte.nix b/nixos/modules/config/vte.nix
index a969607f6e0b..48f85246560a 100644
--- a/nixos/modules/config/vte.nix
+++ b/nixos/modules/config/vte.nix
@@ -1,5 +1,3 @@
-# VTE
-
 { config, pkgs, lib, ... }:
 
 with lib;
@@ -9,7 +7,7 @@ let
   vteInitSnippet = ''
     # Show current working directory in VTE terminals window title.
     # Supports both bash and zsh, requires interactive shell.
-    . ${pkgs.vte}/etc/profile.d/vte.sh
+    . ${pkgs.vte.override { gtkVersion = null; }}/etc/profile.d/vte.sh
   '';
 
 in
diff --git a/pkgs/development/libraries/vte/default.nix b/pkgs/development/libraries/vte/default.nix
index b97eecc280a2..66d26b2a0849 100644
--- a/pkgs/development/libraries/vte/default.nix
+++ b/pkgs/development/libraries/vte/default.nix
@@ -69,6 +69,7 @@ stdenv.mkDerivation rec {
     cairo
     fribidi
     gnutls
+    pango # duplicated with propagatedBuildInputs to support gtkVersion == null
     pcre2
     zlib
     icu
@@ -80,7 +81,6 @@ stdenv.mkDerivation rec {
   propagatedBuildInputs = lib.optionals (gtkVersion != null) [
     (assert (gtkVersion == "3" || gtkVersion == "4");
     if gtkVersion == "3" then gtk3 else gtk4)
-  ] ++ [
     glib
     pango
   ];