➖ ➕ replaces amalgamation tool

The tool used before created a lot of duplicates inside the generated amalgamation. The new tool is a single Python file which seems to do the same job.

CMakeLists.txt

@@ -68,27 +68,6 @@ if(BUILD_TESTING AND JSON_BuildTests)
     add_subdirectory(test)
 endif()
 
-##
-## AMALGAMATION
-## create a single header file
-##
-option(JSON_Amalgamate "Build and use amalgamation" OFF)
-
-if(JSON_Amalgamate)
-    ExternalProject_Add(amalgamate
-      GIT_REPOSITORY "https://github.com/theodelrieu/Amalgamate"
-      CMAKE_ARGS "-DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}"
-    )
-
-    # There is no way to tell amalgamate to force-write the output file even if it already exists...
-    add_custom_target(single_header ALL rm -f "${CMAKE_SOURCE_DIR}/${NLOHMANN_JSON_SOURCE_DIR}/json.hpp"
-      COMMENT "Amalgamating json.hpp..."
-      WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/develop
-      DEPENDS amalgamate
-      COMMAND "${CMAKE_BINARY_DIR}/bin/amalgamate" -w '*.hpp' -i . json.hpp "${CMAKE_SOURCE_DIR}/${NLOHMANN_JSON_SOURCE_DIR}/json.hpp"
-    )
-endif()
-
 ##
 ## INSTALL
 ## install header files, generate and install cmake config files for find_package()

Makefile

@@ -1,30 +1,28 @@
 .PHONY: pretty clean ChangeLog.md
 
-SRCDIR = ./src
-DEVDIR = ./develop
-SRCS = $(SRCDIR)/json.hpp \
-       $(DEVDIR)/json_fwd.hpp \
-       $(DEVDIR)/detail/macro_scope.hpp \
-       $(DEVDIR)/detail/macro_unscope.hpp \
-       $(DEVDIR)/detail/meta.hpp \
-       $(DEVDIR)/detail/exceptions.hpp \
-       $(DEVDIR)/detail/value_t.hpp \
-       $(DEVDIR)/detail/conversions/from_json.hpp \
-       $(DEVDIR)/detail/conversions/to_json.hpp \
-       $(DEVDIR)/detail/parsing/input_adapters.hpp \
-       $(DEVDIR)/detail/parsing/lexer.hpp \
-       $(DEVDIR)/detail/parsing/parser.hpp \
-       $(DEVDIR)/detail/iterators/primitive_iterator.hpp \
-       $(DEVDIR)/detail/iterators/internal_iterator.hpp \
-       $(DEVDIR)/detail/iterators/iter_impl.hpp \
-       $(DEVDIR)/detail/iterators/iteration_proxy.hpp \
-       $(DEVDIR)/detail/iterators/json_reverse_iterator.hpp \
-       $(DEVDIR)/detail/parsing/output_adapters.hpp \
-       $(DEVDIR)/detail/parsing/binary_reader.hpp \
-       $(DEVDIR)/detail/parsing/binary_writer.hpp \
-       $(DEVDIR)/detail/serializer.hpp \
-       $(DEVDIR)/detail/json_ref.hpp \
-       $(DEVDIR)/adl_serializer.hpp
+SRCS = develop/json.hpp \
+       develop/json_fwd.hpp \
+       develop/detail/macro_scope.hpp \
+       develop/detail/macro_unscope.hpp \
+       develop/detail/meta.hpp \
+       develop/detail/exceptions.hpp \
+       develop/detail/value_t.hpp \
+       develop/detail/conversions/from_json.hpp \
+       develop/detail/conversions/to_json.hpp \
+       develop/detail/parsing/input_adapters.hpp \
+       develop/detail/parsing/lexer.hpp \
+       develop/detail/parsing/parser.hpp \
+       develop/detail/iterators/primitive_iterator.hpp \
+       develop/detail/iterators/internal_iterator.hpp \
+       develop/detail/iterators/iter_impl.hpp \
+       develop/detail/iterators/iteration_proxy.hpp \
+       develop/detail/iterators/json_reverse_iterator.hpp \
+       develop/detail/parsing/output_adapters.hpp \
+       develop/detail/parsing/binary_reader.hpp \
+       develop/detail/parsing/binary_writer.hpp \
+       develop/detail/serializer.hpp \
+       develop/detail/json_ref.hpp \
+       develop/adl_serializer.hpp
 
 UNAME = $(shell uname)
 CXX=clang++
@@ -247,9 +245,16 @@ pretty:
 	   --indent-col1-comments --pad-oper --pad-header --align-pointer=type \
 	   --align-reference=type --add-brackets --convert-tabs --close-templates \
 	   --lineend=linux --preserve-date --suffix=none --formatted \
-	   $(SRCS) test/src/*.cpp \
+	   $(SRCS) src/json.hpp test/src/*.cpp \
 	   benchmarks/src/benchmarks.cpp doc/examples/*.cpp
 
+# create single header file
+amalgamate: src/json.hpp
+
+src/json.hpp: $(SRCS)
+	develop/amalgamate/amalgamate.py -c develop/amalgamate/config.json -s develop --verbose=yes
+	$(MAKE) pretty
+
 
 ##########################################################################
 # changelog