From c401a06f8a669d1fd4194010ccf23d7043d70fb1 Mon Sep 17 00:00:00 2001
From: Elias Fleckenstein
 <54945686+EliasFleckenstein03@users.noreply.github.com>
Date: Mon, 1 Mar 2021 12:13:47 +0100
Subject: Make pkgmgr handle modpacks containing modpacks properly

fixes #10550
---
 builtin/mainmenu/pkgmgr.lua | 39 +++++++++++++++++----------------------
 1 file changed, 17 insertions(+), 22 deletions(-)

diff --git a/builtin/mainmenu/pkgmgr.lua b/builtin/mainmenu/pkgmgr.lua
index 4aa05d838..787936e31 100644
--- a/builtin/mainmenu/pkgmgr.lua
+++ b/builtin/mainmenu/pkgmgr.lua
@@ -413,18 +413,7 @@ function pkgmgr.is_modpack_entirely_enabled(data, name)
 end
 
 ---------- toggles or en/disables a mod or modpack and its dependencies --------
-function pkgmgr.enable_mod(this, toset)
-	local list = this.data.list:get_list()
-	local mod = list[this.data.selected_mod]
-
-	-- Game mods can't be enabled or disabled
-	if mod.is_game_content then
-		return
-	end
-
-	local toggled_mods = {}
-
-	local enabled_mods = {}
+local function toggle_mod_or_modpack(list, toggled_mods, enabled_mods, toset, mod)
 	if not mod.is_modpack then
 		-- Toggle or en/disable the mod
 		if toset == nil then
@@ -443,19 +432,25 @@ function pkgmgr.enable_mod(this, toset)
 		-- interleaved unsupported
 		for i = 1, #list do
 			if list[i].modpack == mod.name then
-				if toset == nil then
-					toset = not list[i].enabled
-				end
-				if list[i].enabled ~= toset then
-					list[i].enabled = toset
-					toggled_mods[#toggled_mods+1] = list[i].name
-				end
-				if toset then
-					enabled_mods[list[i].name] = true
-				end
+				toggle_mod_or_modpack(list, toggled_mods, enabled_mods, toset, list[i])
 			end
 		end
 	end
+end
+
+function pkgmgr.enable_mod(this, toset)
+	local list = this.data.list:get_list()
+	local mod = list[this.data.selected_mod]
+
+	-- Game mods can't be enabled or disabled
+	if mod.is_game_content then
+		return
+	end
+
+	local toggled_mods = {}
+	local enabled_mods = {}
+	toggle_mod_or_modpack(list, toggled_mods, enabled_mods, toset, mod)
+
 	if not toset then
 		-- Mod(s) were disabled, so no dependencies need to be enabled
 		table.sort(toggled_mods)
-- 
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