Cleanup versioning strategy (open-source-parsers#989)

* Cleanup versioning strategy

Currently, versioning is a mess. CMake and Meson have seperate build
version number storage locations, with no way of knowing you need to
have both. Plus, due to recent revisions the amalgamate script is broken
unless you build first, and may still be broken afterwards.

This PR fixes some issues with versioning, and adds comments clarifying
what has to be done when doing a release.

* Run clang format

* Update SOVERSION....

Author: baylesj

Diff for: CMakeLists.txt

@@ -63,11 +63,18 @@ if(NOT DEFINED CMAKE_BUILD_TYPE)
 endif()
 
 project(JSONCPP
-        VERSION 1.9.0 # <major>[.<minor>[.<patch>[.<tweak>]]]
+        # Note: version must be updated in three places when doing a release. This
+        # annoying process ensures that amalgamate, CMake, and meson all report the
+        # correct version.
+        # 1. /meson.build
+        # 2. /include/json/version.h
+        # 3. /CMakeLists.txt
+        # IMPORTANT: also update the SOVERSION!!
+        VERSION 1.9.2 # <major>[.<minor>[.<patch>[.<tweak>]]]
         LANGUAGES CXX)
 
 message(STATUS "JsonCpp Version: ${JSONCPP_VERSION_MAJOR}.${JSONCPP_VERSION_MINOR}.${JSONCPP_VERSION_PATCH}")
-set( JSONCPP_SOVERSION 21 )
+set( JSONCPP_SOVERSION 22 )
 
 option(JSONCPP_WITH_TESTS "Compile and (for jsoncpp_check) run JsonCpp test executables" ON)
 option(JSONCPP_WITH_POST_BUILD_UNITTEST "Automatically run unit-tests as a post build step" ON)
@@ -89,10 +96,6 @@ set(DEBUG_LIBNAME_SUFFIX "" CACHE STRING "Optional suffix to append to the libra
 
 set(JSONCPP_USE_SECURE_MEMORY "0" CACHE STRING "-D...=1 to use memory-wiping allocator for STL" )
 
-# File version.h is only regenerated on CMake configure step
-configure_file( "${PROJECT_SOURCE_DIR}/src/lib_json/version.h.in"
-                "${PROJECT_BINARY_DIR}/include/json/version.h"
-                NEWLINE_STYLE UNIX )
 configure_file( "${PROJECT_SOURCE_DIR}/version.in"
                 "${PROJECT_BINARY_DIR}/version"
                 NEWLINE_STYLE UNIX )

Diff for: CONTRIBUTING.md

@@ -26,7 +26,6 @@ Then,
     LIB_TYPE=shared
     #LIB_TYPE=static
     meson --buildtype ${BUILD_TYPE} --default-library ${LIB_TYPE} . build-${LIB_TYPE}
-    #ninja -v -C build-${LIB_TYPE} test # This stopped working on my Mac.
     ninja -v -C build-${LIB_TYPE}
     cd build-${LIB_TYPE}
     meson test --no-rebuild --print-errorlogs

Diff for: amalgamate.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 """Amalgamate json-cpp library sources into a single source and header file.
 
 Works with python2.6+ and python3.4+.
@@ -9,6 +11,9 @@
 import os.path
 import sys
 
+INCLUDE_PATH = "include/json"
+SRC_PATH = "src/lib_json"
+
 class AmalgamationFile:
     def __init__(self, top_dir):
         self.top_dir = top_dir
@@ -66,15 +71,15 @@ def amalgamate_source(source_top_dir=None,
     header.add_text("/// If defined, indicates that the source file is amalgamated")
     header.add_text("/// to prevent private header inclusion.")
     header.add_text("#define JSON_IS_AMALGAMATION")
-    header.add_file("include/json/version.h")
-    header.add_file("include/json/allocator.h")
-    header.add_file("include/json/config.h")
-    header.add_file("include/json/forwards.h")
-    header.add_file("include/json/features.h")
-    header.add_file("include/json/value.h")
-    header.add_file("include/json/reader.h")
-    header.add_file("include/json/writer.h")
-    header.add_file("include/json/assertions.h")
+    header.add_file(os.path.join(INCLUDE_PATH, "version.h"))
+    header.add_file(os.path.join(INCLUDE_PATH, "allocator.h"))
+    header.add_file(os.path.join(INCLUDE_PATH, "config.h"))
+    header.add_file(os.path.join(INCLUDE_PATH, "forwards.h"))
+    header.add_file(os.path.join(INCLUDE_PATH, "features.h"))
+    header.add_file(os.path.join(INCLUDE_PATH, "value.h"))
+    header.add_file(os.path.join(INCLUDE_PATH, "reader.h"))
+    header.add_file(os.path.join(INCLUDE_PATH, "writer.h"))
+    header.add_file(os.path.join(INCLUDE_PATH, "assertions.h"))
     header.add_text("#endif //ifndef JSON_AMALGAMATED_H_INCLUDED")
 
     target_header_path = os.path.join(os.path.dirname(target_source_path), header_include_path)
@@ -94,8 +99,8 @@ def amalgamate_source(source_top_dir=None,
     header.add_text("/// If defined, indicates that the source file is amalgamated")
     header.add_text("/// to prevent private header inclusion.")
     header.add_text("#define JSON_IS_AMALGAMATION")
-    header.add_file("include/json/config.h")
-    header.add_file("include/json/forwards.h")
+    header.add_file(os.path.join(INCLUDE_PATH, "config.h"))
+    header.add_file(os.path.join(INCLUDE_PATH, "forwards.h"))
     header.add_text("#endif //ifndef JSON_FORWARD_AMALGAMATED_H_INCLUDED")
 
     target_forward_header_path = os.path.join(os.path.dirname(target_source_path),
@@ -116,12 +121,11 @@ def amalgamate_source(source_top_dir=None,
 #endif
 """)
     source.add_text("")
-    lib_json = "src/lib_json"
-    source.add_file(os.path.join(lib_json, "json_tool.h"))
-    source.add_file(os.path.join(lib_json, "json_reader.cpp"))
-    source.add_file(os.path.join(lib_json, "json_valueiterator.inl"))
-    source.add_file(os.path.join(lib_json, "json_value.cpp"))
-    source.add_file(os.path.join(lib_json, "json_writer.cpp"))
+    source.add_file(os.path.join(SRC_PATH, "json_tool.h"))
+    source.add_file(os.path.join(SRC_PATH, "json_reader.cpp"))
+    source.add_file(os.path.join(SRC_PATH, "json_valueiterator.inl"))
+    source.add_file(os.path.join(SRC_PATH, "json_value.cpp"))
+    source.add_file(os.path.join(SRC_PATH, "json_writer.cpp"))
 
     print("Writing amalgamated source to %r" % target_source_path)
     source.write_to(target_source_path)

Diff for: include/json/reader.h

@@ -378,7 +378,7 @@ bool JSON_API parseFromStream(CharReader::Factory const&,
 /** \brief Read from 'sin' into 'root'.
  *
  * Always keep comments from the input JSON.
- * 
+ *
  * This can be used to read a file into a particular sub-object.
  * For example:
  *   \code

Diff for: include/json/version.h

@@ -0,0 +1,28 @@
+#ifndef JSON_VERSION_H_INCLUDED
+#define JSON_VERSION_H_INCLUDED
+
+// Note: version must be updated in three places when doing a release. This
+// annoying process ensures that amalgamate, CMake, and meson all report the
+// correct version.
+// 1. /meson.build
+// 2. /include/json/version.h
+// 3. /CMakeLists.txt
+// IMPORTANT: also update the SOVERSION!!
+
+#define JSONCPP_VERSION_STRING "1.9.2"
+#define JSONCPP_VERSION_MAJOR 1
+#define JSONCPP_VERSION_MINOR 9
+#define JSONCPP_VERSION_PATCH 2
+#define JSONCPP_VERSION_QUALIFIER
+#define JSONCPP_VERSION_HEXA                                                   \
+  ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) |             \
+   (JSONCPP_VERSION_PATCH << 8))
+
+#ifdef JSONCPP_USING_SECURE_MEMORY
+#undef JSONCPP_USING_SECURE_MEMORY
+#endif
+#define JSONCPP_USING_SECURE_MEMORY 0
+// If non-zero, the library zeroes any memory that it has allocated before
+// it frees its memory.
+
+#endif // JSON_VERSION_H_INCLUDED

Diff for: meson.build

@@ -1,33 +1,22 @@
 project(
   'jsoncpp',
   'cpp',
-  version : '1.9.0',
+
+  # Note: version must be updated in three places when doing a release. This
+  # annoying process ensures that amalgamate, CMake, and meson all report the
+  # correct version.
+  # 1. /meson.build
+  # 2. /include/json/version.h
+  # 3. /CMakeLists.txt
+  # IMPORTANT: also update the SOVERSION!!
+  version : '1.9.2',
   default_options : [
     'buildtype=release',
     'cpp_std=c++11',
     'warning_level=1'],
   license : 'Public Domain',
   meson_version : '>= 0.50.0')
 
-jsoncpp_ver_arr = meson.project_version().split('.')
-jsoncpp_major_version = jsoncpp_ver_arr[0]
-jsoncpp_minor_version = jsoncpp_ver_arr[1]
-jsoncpp_patch_version = jsoncpp_ver_arr[2]
-
-jsoncpp_cdata = configuration_data()
-jsoncpp_cdata.set('JSONCPP_VERSION', meson.project_version())
-jsoncpp_cdata.set('JSONCPP_VERSION_MAJOR', jsoncpp_major_version)
-jsoncpp_cdata.set('JSONCPP_VERSION_MINOR', jsoncpp_minor_version)
-jsoncpp_cdata.set('JSONCPP_VERSION_PATCH', jsoncpp_patch_version)
-jsoncpp_cdata.set('JSONCPP_USE_SECURE_MEMORY',0)
-
-jsoncpp_gen_sources = configure_file(
-  input : 'src/lib_json/version.h.in',
-  output : 'version.h',
-  configuration : jsoncpp_cdata,
-  install : true,
-  install_dir : join_paths(get_option('prefix'), get_option('includedir'), 'json')
-)
 
 jsoncpp_headers = [
   'include/json/allocator.h',
@@ -39,6 +28,7 @@ jsoncpp_headers = [
   'include/json/json.h',
   'include/json/reader.h',
   'include/json/value.h',
+  'include/json/version.h',
   'include/json/writer.h']
 jsoncpp_include_directories = include_directories('include')
 
@@ -56,13 +46,12 @@ endif
 
 jsoncpp_lib = library(
   'jsoncpp',
-  [ jsoncpp_gen_sources,
-    jsoncpp_headers,
+  [ jsoncpp_headers,
     'src/lib_json/json_tool.h',
     'src/lib_json/json_reader.cpp',
     'src/lib_json/json_value.cpp',
     'src/lib_json/json_writer.cpp'],
-  soversion : 21,
+  soversion : 22,
   install : true,
   include_directories : jsoncpp_include_directories,
   cpp_args: dll_export_flag)
@@ -79,7 +68,7 @@ jsoncpp_dep = declare_dependency(
   include_directories : jsoncpp_include_directories,
   link_with : jsoncpp_lib,
   version : meson.project_version(),
-  sources : jsoncpp_gen_sources)
+  )
 
 # tests
 python = import('python3').find_python()

Diff for: src/lib_json/CMakeLists.txt

@@ -45,9 +45,9 @@ set( PUBLIC_HEADERS
     ${JSONCPP_INCLUDE_DIR}/json/features.h
     ${JSONCPP_INCLUDE_DIR}/json/value.h
     ${JSONCPP_INCLUDE_DIR}/json/reader.h
+    ${JSONCPP_INCLUDE_DIR}/json/version.h
     ${JSONCPP_INCLUDE_DIR}/json/writer.h
     ${JSONCPP_INCLUDE_DIR}/json/assertions.h
-    ${PROJECT_BINARY_DIR}/include/json/version.h
     )
 
 source_group( "Public API" FILES ${PUBLIC_HEADERS} )
@@ -57,8 +57,7 @@ set(jsoncpp_sources
                 json_reader.cpp
                 json_valueiterator.inl
                 json_value.cpp
-                json_writer.cpp
-                version.h.in)
+                json_writer.cpp)
 
 # Install instructions for this target
 if(JSONCPP_WITH_CMAKE_PACKAGE)