From 9fab5d594cab4c0a027f0aecf356382f3a37c1de Mon Sep 17 00:00:00 2001
From: emixa-d <85313564+emixa-d@users.noreply.github.com>
Date: Wed, 6 Oct 2021 22:19:41 +0000
Subject: Add "MINETEST_MOD_PATH" environment variable (#11515)

This adds an environment variable MINETEST_MOD_PATH.
When it exists, Minetest will look there for mods in addition to ~/.minetest/mods/.
---
 src/script/lua_api/l_mainmenu.cpp | 17 +++++++++++++++++
 src/script/lua_api/l_mainmenu.h   |  2 ++
 2 files changed, 19 insertions(+)

(limited to 'src/script/lua_api')

diff --git a/src/script/lua_api/l_mainmenu.cpp b/src/script/lua_api/l_mainmenu.cpp
index 6e9a5c34f..57fddc0be 100644
--- a/src/script/lua_api/l_mainmenu.cpp
+++ b/src/script/lua_api/l_mainmenu.cpp
@@ -502,6 +502,21 @@ int ModApiMainMenu::l_get_modpath(lua_State *L)
 	return 1;
 }
 
+/******************************************************************************/
+int ModApiMainMenu::l_get_modpaths(lua_State *L)
+{
+	int index = 1;
+	lua_newtable(L);
+	ModApiMainMenu::l_get_modpath(L);
+	lua_rawseti(L, -2, index);
+	for (const std::string &component : getEnvModPaths()) {
+		index++;
+		lua_pushstring(L, component.c_str());
+		lua_rawseti(L, -2, index);
+	}
+	return 1;
+}
+
 /******************************************************************************/
 int ModApiMainMenu::l_get_clientmodpath(lua_State *L)
 {
@@ -856,6 +871,7 @@ void ModApiMainMenu::Initialize(lua_State *L, int top)
 	API_FCT(get_mapgen_names);
 	API_FCT(get_user_path);
 	API_FCT(get_modpath);
+	API_FCT(get_modpaths);
 	API_FCT(get_clientmodpath);
 	API_FCT(get_gamepath);
 	API_FCT(get_texturepath);
@@ -889,6 +905,7 @@ void ModApiMainMenu::InitializeAsync(lua_State *L, int top)
 	API_FCT(get_mapgen_names);
 	API_FCT(get_user_path);
 	API_FCT(get_modpath);
+	API_FCT(get_modpaths);
 	API_FCT(get_clientmodpath);
 	API_FCT(get_gamepath);
 	API_FCT(get_texturepath);
diff --git a/src/script/lua_api/l_mainmenu.h b/src/script/lua_api/l_mainmenu.h
index ec2d20da2..781185425 100644
--- a/src/script/lua_api/l_mainmenu.h
+++ b/src/script/lua_api/l_mainmenu.h
@@ -112,6 +112,8 @@ private:
 
 	static int l_get_modpath(lua_State *L);
 
+	static int l_get_modpaths(lua_State *L);
+
 	static int l_get_clientmodpath(lua_State *L);
 
 	static int l_get_gamepath(lua_State *L);
-- 
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