From 63d17483d26a2b25a2aac141c814ffc100d3aafa Mon Sep 17 00:00:00 2001
From: heinrich5991 <heinrich5991@gmail.com>
Date: Sun, 3 Feb 2019 11:00:11 +0100
Subject: [PATCH] Add automatic dependency download to CMake for Windows

---
 CMakeLists.txt      | 24 +++++++++++++++++++++++-
 bam.lua             |  1 -
 scripts/download.py | 13 +++----------
 3 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e3675c618..2a9923318 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,6 +65,7 @@ if(TARGET_OS STREQUAL "windows")
 endif()
 
 option(CLIENT "Compile client" ON)
+option(DOWNLOAD_DEPENDENCIES "Download dependencies (only available on Windows)" ${AUTO_DEPENDENCIES_DEFAULT})
 option(PREFER_BUNDLED_LIBS "Prefer bundled libraries over system libraries" ${AUTO_DEPENDENCIES_DEFAULT})
 option(DEV "Don't generate stuff necessary for packaging" OFF)
 
@@ -86,6 +87,28 @@ set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS
 set(SERVER_EXECUTABLE teeworlds_srv CACHE STRING "Name of the built server executable")
 set(CLIENT_EXECUTABLE teeworlds CACHE STRING "Name of the build client executable")
 
+########################################################################
+# Download dependencies
+########################################################################
+
+find_package(PythonInterp)
+if(DOWNLOAD_DEPENDENCIES)
+  if(PYTHON_EXECUTABLE AND TARGET_OS STREQUAL "windows" AND TARGET_BITS)
+    set(DOWNLOADS)
+    foreach(d freetype sdl)
+      if(NOT EXISTS "${PROJECT_SOURCE_DIR}/other/${d}/${TARGET_OS}/lib${TARGET_BITS}")
+        list(APPEND DOWNLOADS ${d})
+      endif()
+    endforeach()
+    if(DOWNLOADS)
+      message(STATUS "Downloading Freetype and SDL 2")
+      execute_process(COMMAND ${PYTHON_EXECUTABLE} scripts/download.py ${DOWNLOADS}
+        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+      )
+    endif()
+  endif()
+endif()
+
 ########################################################################
 # Compiler flags
 ########################################################################
@@ -257,7 +280,6 @@ find_package(ZLIB)
 find_package(Freetype)
 find_package(Git)
 find_package(Pnglite)
-find_package(PythonInterp)
 find_package(SDL2)
 find_package(Threads)
 find_package(Wavpack)
diff --git a/bam.lua b/bam.lua
index b35766d4a..42b1846f6 100644
--- a/bam.lua
+++ b/bam.lua
@@ -378,7 +378,6 @@ function BuildContent(settings, arch, conf)
 		end
 		-- dependencies
 		dl = Python("scripts/download.py")
-		dl = dl .. " --arch " .. arch .. " --conf " .. conf
 		AddJob("other/sdl/include/SDL.h", "Downloading SDL2", dl .. " sdl")
 		AddJob("other/freetype/include/ft2build.h", "Downloading freetype", dl .. " freetype")
 		table.insert(content, CopyFile(settings.link.Output(settings, "") .. "/SDL2.dll", "other/sdl/windows/lib" .. _arch .. "/SDL2.dll"))
diff --git a/scripts/download.py b/scripts/download.py
index 1943000d2..a7278a135 100644
--- a/scripts/download.py
+++ b/scripts/download.py
@@ -19,14 +19,9 @@ def unzip(filename, where):
 	z.close()
 	return z.namelist()[0]
 
-def downloadAll(arch, conf, targets):
+def downloadAll(targets):
 	url = "https://github.com/teeworlds/teeworlds-libs/archive/master.zip"
-	if arch == "x86_64":
-		_arch = "64"
-	else:
-		_arch = "32"
-	builddir = "build/" + arch + "/" + conf + "/"
-	
+
 	# download and unzip
 	src_package_libs = twlib.fetch_file(url)
 	if not src_package_libs:
@@ -52,12 +47,10 @@ def downloadAll(arch, conf, targets):
 def main():
     import argparse
     p = argparse.ArgumentParser(description="Download freetype and SDL library and header files for Windows.")
-    p.add_argument("--arch", default="x86", choices=["x86", "x86_64"], help="Architecture for the downloaded libraries (Default: x86)")
-    p.add_argument("--conf", default="debug", choices=["debug", "release"], help="Build type (Default: debug)")
     p.add_argument("targets", metavar="TARGET", nargs='+', choices=["sdl", "freetype"], help='Target to download. Valid choices are "sdl" and "freetype"')
     args = p.parse_args()
 
-    downloadAll(args.arch, args.conf, args.targets)
+    downloadAll(args.targets)
 
 if __name__ == '__main__':
     main()