Use dftkit for DFT converters

CMakeLists.txt

@@ -24,7 +24,7 @@ cmake_policy(VERSION ${CMAKE_VERSION})
 
 # ############
 # Define Project
-project(triqs_dft_tools VERSION 3.3.1 LANGUAGES CXX Fortran)
+project(triqs_dft_tools VERSION 3.3.1 LANGUAGES CXX)
 get_directory_property(IS_SUBPROJECT PARENT_DIRECTORY)
 
 # ############
@@ -89,9 +89,6 @@ include(GNUInstallDirs)
 # Find / Build dependencies
 add_subdirectory(deps)
 
-# add here stuff for the Fortran part in DFTTools
-add_subdirectory(fortran/dmftproj)
-
 # Tests
 if(Build_Tests)
   add_subdirectory(test)

deps/CMakeLists.txt

@@ -1,48 +1,8 @@
-include(external_dependency.cmake)
+include(get_cpm.cmake)
 
-# Add your dependencies with the function
-#
-#   external_dependency(name
-#       [VERSION <version-number>]
-#       [GIT_REPO <url>]
-#       [GIT_TAG <tag>]
-#       [BUILD_ALWAYS]
-#       [EXCLUDE_FROM_ALL]
-#   )
-#
-# Resolve the dependency using the following steps in order.
-# If a step was successful, skip the remaining ones.
-#
-#  1. Use find_package(name [<version-number>])
-#     to locate the package in the system.
-#     Skip this step if Build_Deps option is set.
-#  2. Try to find a directory containing the sources
-#     at ${CMAKE_CURRENT_SOURCE_DIR}/name and
-#     ${CMAKE_SOURCE_DIR}/deps/name. If found
-#     build it as a cmake sub-project.
-#  3. If GIT_REPO is provided, git clone the sources,
-#     and build them as a cmake sub-project.
-#
-# Addtional options:
-#
-#  GIT_TAG - Use this keyword to specify the git-tag, branch or commit hash
-#
-#  BUILD_ALWAYS - If set, this dependency will always be built from source
-#                 and will never be searched in the system.
-#
-#  EXCLUDE_FROM_ALL - If set, targets of the dependency cmake subproject
-#                     will not be included in the ALL target of the project.
-#                     In particular the dependency will not be installed.
-
-if(NOT DEFINED Build_Deps)
-  set(Build_Deps "Always" CACHE STRING "Do we build dependencies from source? [Never/Always/IfNotFound]")
-else()
-  set(Build_Deps_Opts "Never" "Always" "IfNotFound")
-  if(NOT ${Build_Deps} IN_LIST Build_Deps_Opts)
-    message(FATAL_ERROR "Build_Deps option should be either 'Never', 'Always' or 'IfNotFound'")
-  endif()
-  set(Build_Deps ${Build_Deps} CACHE STRING "Do we build dependencies from source? [Never/Always/IfNotFound]")
-  if(NOT IS_SUBPROJECT AND NOT Build_Deps STREQUAL "Always" AND (ASAN OR UBSAN))
-    message(WARNING "For builds with llvm sanitizers (ASAN/UBSAN) it is recommended to use -DBuild_Deps=Always to avoid false positives.")
-  endif()
-endif()
+# -- dftkit --
+CPMAddPackage(
+  NAME dftkit
+  GITHUB_REPOSITORY triqs/dftkit
+  GIT_TAG unstable
+)

deps/get_cpm.cmake

@@ -0,0 +1,20 @@
+# Download CPM.cmake if not already available
+set(CPM_DOWNLOAD_VERSION 0.42.0)
+
+if(CPM_SOURCE_CACHE)
+  set(CPM_DOWNLOAD_LOCATION "${CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
+elseif(DEFINED ENV{CPM_SOURCE_CACHE})
+  set(CPM_DOWNLOAD_LOCATION "$ENV{CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
+else()
+  set(CPM_DOWNLOAD_LOCATION "${CMAKE_BINARY_DIR}/cmake/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
+endif()
+
+if(NOT (EXISTS ${CPM_DOWNLOAD_LOCATION}))
+  message(STATUS "Downloading CPM.cmake to ${CPM_DOWNLOAD_LOCATION}")
+  file(DOWNLOAD
+       https://github.com/cpm-cmake/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake
+       ${CPM_DOWNLOAD_LOCATION}
+  )
+endif()
+
+include(${CPM_DOWNLOAD_LOCATION})