Fix build: add patches from heremaps/pptk#45,

add nix and envrc

Signed-off-by: SamueleFacenda <[email protected]>

Author: SamueleFacenda

.envrc

@@ -0,0 +1,4 @@
+if ! has nix_direnv_version || ! nix_direnv_version 3.0.6; then
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/3.0.6/direnvrc" "sha256-RYcUJaRMf8oF5LznDrlCXbkOQrywm0HDv1VjYGaJGdM="
+fi
+use flake

.gitignore

@@ -0,0 +1,4 @@
+build/
+__pycache__/
+result
+/.direnv

CMakeCache.linux.txt

@@ -1,35 +1,12 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.14)
 project(pptk)
 
 set(CMAKE_BUILD_TYPE Release)
-set(CMAKE_MODULE_PATH
-  "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ${CMAKE_CURRENT_SOURCE_DIR})
-
-find_package(PythonLibs 2.7 REQUIRED)
-find_package(OpenGL REQUIRED)
-find_package(Numpy REQUIRED)
-find_package(TBB REQUIRED)
-find_package(Eigen REQUIRED)
-find_package(Qt5 CONFIG REQUIRED COMPONENTS Widgets Network OpenGL Core)
-find_package(OpenMP)
-
-# get root Qt5 folder (i.e. contains bin, lib, plugins, etc.)
-get_target_property(Qt5_DIR Qt5::qmake LOCATION)
-get_filename_component(Qt5_DIR ${Qt5_DIR} DIRECTORY)
-get_filename_component(Qt5_DIR ${Qt5_DIR} DIRECTORY)
-set(Qt5_PLUGINS_DIR ${Qt5_DIR}/plugins)
+set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
 
 # localize all dependencies (.dll, .so, or .dylib) in the following folder
 set(PPTK_LIBS_DIR ${PROJECT_BINARY_DIR}/pptk/libs)
 
-# use the following variable to store a list of .dll paths required by targets
-# built in pptk; this is useful only for building on Windows platform
-get_filename_component(TBB_RUNTIME_DIR ${TBB_tbb_RUNTIME} DIRECTORY)
-set(PPTK_DLL_DIRS
-  ${TBB_RUNTIME_DIR}
-  ${Qt5_DIR}/bin
-  CACHE INTERNAL "Additional folder paths for finding .dll's")
-
 # use patchelf to modify binary RPATH when building pptk on Linux
 if(UNIX AND NOT APPLE)
   find_program(PPTK_PATCHELF patchelf)

CMakeCache.mac.txt

@@ -48,12 +48,14 @@ function(copy_target_dependencies x)
         ${PROJECT_SOURCE_DIR}/cmake/CopyAppleDependencies.cmake
         ${CMAKE_CURRENT_BINARY_DIR}/${_target_file_name} ${PPTK_LIBS_DIR})
   elseif(UNIX)
+    find_file(helper_script CopyLinuxDependencies.cmake 
+        PATHS ${CMAKE_MODULE_PATH} REQUIRED)
     add_custom_command(TARGET ${x} POST_BUILD
-      COMMAND ${CMAKE_COMMAND} -P
-        ${PROJECT_SOURCE_DIR}/cmake/CopyLinuxDependencies.cmake
+      COMMAND ${CMAKE_COMMAND} -P ${helper_script}
         ${_target_file}
         ${CMAKE_CURRENT_BINARY_DIR}/${_target_file_name}
         ${PPTK_LIBS_DIR} ${PPTK_PATCHELF})
+    unset(helper_script CACHE) # find_file creates a cache variable, this is temporary
   endif()
 endfunction()
 
@@ -65,22 +67,24 @@ endmacro()
 function(copy_file x)
   # x should be a file path, and should not be a variable
   # i.e. copy_file(${var}), not copy_file(var)
-  get_filename_component(name ${x} NAME)
-  file(RELATIVE_PATH temp ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
-  if (NOT (temp STREQUAL ""))
-    string(REGEX REPLACE "(/|\\\\)" "." temp "${temp}")
-    string(CONCAT name "${temp}" "." "${name}")
+  get_filename_component(filename ${x} NAME)
+  file(RELATIVE_PATH rel_path ${PROJECT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
+  if (NOT (rel_path STREQUAL ""))
+    string(REGEX REPLACE "(/|\\\\)" "." rel_path "${rel_path}")
+    string(CONCAT target_name "${rel_path}" "." "${filename}")
+  else()
+    string(CONCAT target_name "${PROJECT_NAME}" "." "${filename}")
   endif()
   if (ARGC EQUAL 2)
-    set(${ARGV1} ${name} PARENT_SCOPE)
+    set(${ARGV1} ${target_name} PARENT_SCOPE)
   endif()
   if (NOT IS_ABSOLUTE ${x})
     set(src ${CMAKE_CURRENT_SOURCE_DIR}/${x})
   else()
     set(src ${x})
   endif()
   set(dst ${CMAKE_CURRENT_BINARY_DIR})
-  add_custom_target(${name} ALL
+  add_custom_target(${target_name} ALL
     COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src} ${dst}
     COMMENT "Copying ${src} to ${dst}")
 endfunction()