From 986648c0b24dd6f0f718d86b64e6a670e865591c Mon Sep 17 00:00:00 2001
From: Vladimir Romashchenko
 <52473614+eaglesemanation@users.noreply.github.com>
Date: Wed, 22 Dec 2021 06:11:58 -0500
Subject: [PATCH] feat: Out of tree build (#105)

Allows to build this plugin outside of obs-studio project tree
---
 CMakeLists.txt | 28 ++++++++++++++++++++++------
 README.md      | 13 +++++++++----
 2 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 45dbc13..252a4c0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -32,16 +32,32 @@ if(WIN32)
 		move-transition.rc)
 endif()
 
+if(BUILD_OUT_OF_TREE)
+    find_package(LibObs REQUIRED)
+endif()
+
 add_library(move-transition MODULE
 	${move-transition_HEADERS}
 	${move-transition_SOURCES})
-
-target_include_directories(move-transition PRIVATE 
-    "${CMAKE_SOURCE_DIR}/UI/obs-frontend-api")
-
 target_link_libraries(move-transition
 	obs-frontend-api
 	libobs)
 
-set_target_properties(move-transition PROPERTIES FOLDER "plugins/exeldro")
-install_obs_plugin_with_data(move-transition data)
+if(BUILD_OUT_OF_TREE)
+    if(NOT LIB_OUT_DIR)
+        set(LIB_OUT_DIR "/lib/obs-plugins")
+    endif()
+    if(NOT DATA_OUT_DIR)
+        set(DATA_OUT_DIR "/share/obs/obs-plugins/move-transition")
+    endif()
+    set_target_properties(move-transition PROPERTIES PREFIX "")
+    install(TARGETS move-transition
+        LIBRARY DESTINATION ${CMAKE_INSTALL_PREFIX}/${LIB_OUT_DIR})
+    install(DIRECTORY data/locale
+        DESTINATION ${CMAKE_INSTALL_PREFIX}/${DATA_OUT_DIR})
+else()
+    target_include_directories(move-transition PRIVATE
+        "${CMAKE_SOURCE_DIR}/UI/obs-frontend-api")
+    set_target_properties(move-transition PROPERTIES FOLDER "plugins/exeldro")
+    install_obs_plugin_with_data(move-transition data)
+endif()
diff --git a/README.md b/README.md
index 0a1390e..46bcd76 100644
--- a/README.md
+++ b/README.md
@@ -6,10 +6,15 @@ Plugin for OBS Studio to move source to a new position during scene transition
 https://obsproject.com/forum/resources/move-transition.913/
 
 # Build
-- Build OBS Studio: https://obsproject.com/wiki/Install-Instructions
-- Check out this repository to plugins/move-transition
-- Add `add_subdirectory(move-transition)` to plugins/CMakeLists.txt
-- Rebuild OBS Studio
+1. In-tree build
+    - Build OBS Studio: https://obsproject.com/wiki/Install-Instructions
+    - Check out this repository to plugins/move-transition
+    - Add `add_subdirectory(move-transition)` to plugins/CMakeLists.txt
+    - Rebuild OBS Studio
+
+1. Stand-alone build (Linux only)
+    - Verify that you have package with development files for OBS
+    - Check out this repository and run `cmake -S . -B build -DBUILD_OUT_OF_TREE=On && cmake --build build`
 
 # Donations
 https://www.paypal.me/exeldro