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2026-06-22 15:35:18 +08:00
commit 74e4f32cdf
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+###############################################################################
+# Copyright © 2017 epsilonRT, All rights reserved.                            #
+# This software is governed by the CeCILL license <http://www.cecill.info>    #
+###############################################################################
+# GitVersion.cmake
+# Dépendances: git
+# Variables en sortie :
+# ${_prefix}_FOUND
+# Si ${_prefix}_FOUND = TRUE:
+#   ${_prefix}_STRING
+#   ${_prefix}_SHORT
+#   ${_prefix}_TINY
+#   ${_prefix}_MAJOR
+#   ${_prefix}_MINOR
+#   ${_prefix}_PATCH
+#   ${_prefix}_SHA1
+
+find_package(Git)
+
+#-------------------------------------------------------------------------------
+function(GetGitVersion _prefix)
+
+  set (${_prefix}_FOUND FALSE PARENT_SCOPE)
+  set (ret 1)
+
+  if(GIT_FOUND)
+    execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags 
+      RESULT_VARIABLE ret OUTPUT_VARIABLE str OUTPUT_STRIP_TRAILING_WHITESPACE 
+      ERROR_QUIET)
+  endif()
+  
+  if(NOT ret EQUAL 0)
+    set(str v1.0-0)
+    set(ret 0)
+  endif()
+  
+  #message("GetGitVersion:str=${str}")
+  #message("GetGitVersion:ret=${ret}")
+  
+  if (ret EQUAL 0 AND str)
+    
+    string(REGEX MATCH "^[vV][0-9]\\.[0-9].*" str ${str})
+    #message("GetGitVersion:version=${version}")
+    
+    if (str)
+    
+      set (${_prefix}_FOUND TRUE PARENT_SCOPE)
+      string(LENGTH "${str}" len)
+      math(EXPR len ${len}-1)
+      #message("GetGitVersion:len=${len}")
+
+      string(SUBSTRING "${str}" 1 ${len} version_string)
+      #message("GetGitVersion:version_string=${version_string}")
+      
+      string(REGEX REPLACE "[\\.\\-]" ";" version_list "${version_string}")
+      #message("GetGitVersion:version_list=${version_list}")
+
+      list(LENGTH version_list len)
+      #message("GetGitVersion:len=${len}")
+      
+      if (${len} GREATER 0)
+        list(GET version_list 0 major)
+      else(${len} GREATER 0)
+        set(major 1)
+      endif(${len} GREATER 0)
+      #message("GetGitVersion:major=${major}")
+
+      if (${len} GREATER 1)
+        list(GET version_list 1 minor)
+      else(${len} GREATER 1)
+        set(minor 0)
+      endif(${len} GREATER 1)
+      #message("GetGitVersion:minor=${minor}")
+
+      set(version_tiny "${major}.${minor}")
+      
+      if (${len} GREATER 2)
+        list(GET version_list 2 patch)
+        set(version_short "${version_tiny}-${patch}")
+      else(${len} GREATER 2)
+        set(patch 0)
+        set(version_short "${version_tiny}")
+      endif(${len} GREATER 2)
+      #message("GetGitVersion:patch=${patch}")
+
+
+      if (${len} GREATER 3)
+        list(GET version_list 3 str)
+        string(REPLACE "g" "0x" sha1 "${str}")
+      else(${len} GREATER 3)
+        set(sha1 "0x0")
+      endif(${len} GREATER 3)
+      #message("GetGitVersion:sha1=${sha1}")
+
+      #message("GetGitVersion:version_string=${version_string}")
+      #message("GetGitVersion:version_short=${version_short}")
+      #message("GetGitVersion:version_tiny=${version_tiny}")
+
+      set (${_prefix}_STRING ${version_string} PARENT_SCOPE)
+      set (${_prefix}_SHORT ${version_short} PARENT_SCOPE)
+      set (${_prefix}_TINY ${version_tiny} PARENT_SCOPE)
+      set (${_prefix}_MAJOR ${major} PARENT_SCOPE)
+      set (${_prefix}_MINOR ${minor} PARENT_SCOPE)
+      set (${_prefix}_PATCH ${patch} PARENT_SCOPE)
+      set (${_prefix}_SHA1 ${sha1} PARENT_SCOPE)
+      unset(version_list)
+      unset(version_string)
+      unset(version_short)
+      unset(version_tiny)
+      unset(major)
+      unset(minor)
+      unset(patch)
+      unset(sha1)
+      unset(str)
+      unset(ret)
+      unset(len)
+    else (str)
+      message(FATAL_ERROR "Unable to find current project version !")
+    endif (str)
+  else (ret EQUAL 0 AND str)
+    message(FATAL_ERROR "Unable to find current project version !")
+  endif (ret EQUAL 0 AND str)
+endfunction()
+
+#-------------------------------------------------------------------------------
+function(WriteGitVersionFile _filename)
+
+  GetGitVersion(WRITE_GIT_VERSION)
+  get_filename_component(ext ${_filename} EXT)
+  #message("WriteGitVersionFile:ext=${ext}")
+  if (${ext} STREQUAL ".h")
+    file(WRITE ${_filename}  "#define VERSION \"${WRITE_GIT_VERSION_STRING}\"\n")
+    file(APPEND ${_filename} "#define VERSION_SHORT \"${WRITE_GIT_VERSION_SHORT}\"\n")
+    file(APPEND ${_filename} "#define VERSION_TINY \"${WRITE_GIT_VERSION_TINY}\"\n")
+    file(APPEND ${_filename} "#define VERSION_MAJOR ${WRITE_GIT_VERSION_MAJOR}\n")
+    file(APPEND ${_filename} "#define VERSION_MINOR ${WRITE_GIT_VERSION_MINOR}\n")
+    file(APPEND ${_filename} "#define VERSION_PATCH ${WRITE_GIT_VERSION_PATCH}\n")
+    file(APPEND ${_filename} "#define VERSION_SHA1 ${WRITE_GIT_VERSION_SHA1}\n")
+  elseif (${ext} STREQUAL ".mk")
+    if (${WRITE_GIT_VERSION_PATCH} EQUAL 0)
+      file(WRITE ${_filename}  "${WRITE_GIT_VERSION_MAJOR}.${WRITE_GIT_VERSION_MINOR}\n")
+    else()
+      file(WRITE ${_filename}  "${WRITE_GIT_VERSION_MAJOR}.${WRITE_GIT_VERSION_MINOR}.${WRITE_GIT_VERSION_PATCH}\n")
+    endif()
+  else()
+    message(WARNING "unsupported file type ${ext}")
+  endif()
+endfunction()
+
+#-------------------------------------------------------------------------------