Merge branch '4-part-version-string' into release

* 4-part-version-string:
  Use a 4 part version string in between releases

CMakeLists.txt

@@ -12,7 +12,11 @@ if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
     "separate from the source directory")
 endif()
 
-project(ADIOS2 VERSION 2.4.0)
+include(${CMAKE_CURRENT_LIST_DIR}/cmake/ADIOSFunctions.cmake)
+
+setup_version(2.4.0)
+
+project(ADIOS2 VERSION ${ADIOS2_VERSION})
 if(POLICY CMP0074)
   cmake_policy(SET CMP0074 NEW)
 endif()
@@ -63,7 +67,6 @@ add_subdirectory(cmake/install/pre)
 #------------------------------------------------------------------------------#
 # Top level options
 #------------------------------------------------------------------------------#
-include(ADIOSFunctions)
 
 # Default to a debug build if not specified
 if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)

bindings/Python/py11glue.cpp

@@ -120,10 +120,7 @@ PYBIND11_MODULE(adios2, m)
     m.attr("GlobalValue") = false;
     m.attr("LocalValue") = true;
 
-    std::ostringstream versionss;
-    versionss << ADIOS2_VERSION_MAJOR << "." << ADIOS2_VERSION_MINOR << "."
-              << ADIOS2_VERSION_PATCH;
-    m.attr("__version__") = versionss.str();
+    m.attr("__version__") = ADIOS2_VERSION_STR;
 
     // enum classes
     pybind11::enum_<adios2::Mode>(m, "Mode")

cmake/ADIOSFunctions.cmake

@@ -3,6 +3,34 @@
 # accompanying file Copyright.txt for details.
 #------------------------------------------------------------------------------#
 
+function(setup_version BASE)
+  set(ver_tweak)
+  if(EXISTS ${CMAKE_CURRENT_LIST_DIR}/.git)
+    if(NOT GIT_COMMAND)
+      find_program(GIT_COMMAND git)
+    endif()
+    if(GIT_COMMAND)
+      execute_process(
+        COMMAND git
+          --git-dir=${CMAKE_CURRENT_LIST_DIR}/.git
+          describe --tags --match v${BASE}
+        RESULT_VARIABLE res
+        OUTPUT_VARIABLE out
+        ERROR_QUIET
+      )
+      if(res EQUAL 0 AND out MATCHES "[^-]*-([^-]*)-g[a-f0-9]*")
+        set(ver_tweak ${CMAKE_MATCH_1})
+      endif()  
+    endif()
+  endif()
+  if(ver_tweak)
+    set(ADIOS2_VERSION ${BASE}.${ver_tweak} PARENT_SCOPE)
+  else()
+    set(ADIOS2_VERSION ${BASE} PARENT_SCOPE)
+  endif()
+  set(ADIOS2_LIBRARY_VERSION ${BASE} PARENT_SCOPE)
+endfunction()
+
 function(adios_option name description default)
   set(ADIOS2_USE_${name} ${default} CACHE STRING "${description}")
   set_property(CACHE ADIOS2_USE_${name} PROPERTY

source/adios2/CMakeLists.txt

@@ -224,7 +224,7 @@ endif()
 
 # Set library version information
 set_target_properties(adios2 PROPERTIES
-  VERSION ${ADIOS2_VERSION}
+  VERSION ${ADIOS2_LIBRARY_VERSION}
   SOVERSION ${ADIOS2_VERSION_MAJOR}
 )
 

source/adios2/common/ADIOSConfig.h.in

@@ -7,10 +7,11 @@
 #define ADIOSCONFIG_H_
 
 /* ADIOS Version Information */
+#define ADIOS2_VERSION_STR   "@ADIOS2_VERSION@"
 #define ADIOS2_VERSION_MAJOR @ADIOS2_VERSION_MAJOR@
 #define ADIOS2_VERSION_MINOR @ADIOS2_VERSION_MINOR@
 #define ADIOS2_VERSION_PATCH @ADIOS2_VERSION_PATCH@
-#define ADIOS2_VERSION       @ADIOS2_VERSION@
+#cmakedefine ADIOS2_VERSION_TWEAK @ADIOS2_VERSION_TWEAK@
 
 /*
  * ADIOS Build Information:

source/adios2/toolkit/sst/CMakeLists.txt

@@ -33,7 +33,7 @@ endif()
 # Set library version information
 set_target_properties(sst PROPERTIES
   OUTPUT_NAME adios2_sst
-  VERSION ${ADIOS2_VERSION}
+  VERSION ${ADIOS2_LIBRARY_VERSION}
   SOVERSION ${ADIOS2_VERSION_MAJOR}
 )