From 5b8411277e44e92eea3b8e9469af003415c02a6f Mon Sep 17 00:00:00 2001
From: Jens Lorenz <jlorenz@de.adit-jv.com>
Date: Mon, 12 Feb 2018 17:45:56 +0100
Subject: CMake: Implement VCS agnostic versioning

Versioning should not strictly depend on Version Control System (e.g. git).
Best approach is to have a dedicated VERSION file exposing with format
<Major>.<Minor>.<Revision>. Target is that maintainer will manually release
the version once patches/fixes are merged e.g. to a stabilization branch.
In order to have an OEM specific meta information exposed with the version
information EXTRAVERSIONINFO can be specified by CMAKE flag.

Signed-off-by: Guerra Mattia <mguerra@de.adit-jv.com>
---
 cmake/MacroVersionFromGit.cmake | 55 ++++++-----------------------------------
 1 file changed, 8 insertions(+), 47 deletions(-)

(limited to 'cmake/MacroVersionFromGit.cmake')

diff --git a/cmake/MacroVersionFromGit.cmake b/cmake/MacroVersionFromGit.cmake
index 94931c6..fca7bdc 100644
--- a/cmake/MacroVersionFromGit.cmake
+++ b/cmake/MacroVersionFromGit.cmake
@@ -1,50 +1,11 @@
-# get the current git version
-execute_process(COMMAND git tag
-                WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-                OUTPUT_VARIABLE TAG_LIST
-                OUTPUT_STRIP_TRAILING_WHITESPACE)
-
-IF (TAG_LIST AND NOT VERSION)
-    STRING (REPLACE "\n" ";" TAG_LIST ${TAG_LIST})
-
-    set (VERSION_LIST)
-
-    foreach (element ${TAG_LIST})
-        STRING (REGEX MATCH "^[0-9]+\\.." SINGLE_VERSION ${element})
-        LIST (APPEND VERSION_LIST ${SINGLE_VERSION})
-    endforeach (element)
-
-    LIST (REVERSE VERSION_LIST)
-
-    LIST (GET VERSION_LIST 0 VERSION_MISSING_MINOR)
-
-    execute_process(COMMAND git --no-pager log --pretty=oneline HEAD...${VERSION_MISSING_MINOR}
-            WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-            OUTPUT_VARIABLE COMMIT_LIST
-            OUTPUT_STRIP_TRAILING_WHITESPACE)
-
-    IF (COMMIT_LIST)
-        STRING (REPLACE "\n" ";" COMMIT_LIST ${COMMIT_LIST})
-
-        LIST (LENGTH COMMIT_LIST MINOR_VERSION)
-
-        SET (DAEMONVERSION "${VERSION_MISSING_MINOR}.${MINOR_VERSION}")
-    ENDIF (COMMIT_LIST)
-ENDIF (TAGLIST AND NOT VERSION)
-
-if (NOT DAEMONVERSION)
-    #Can be changed via passing -DVERSION="XXX" to cmake
-    if(NOT DEFINED VERSION)
-        set( DAEMONVERSION "homebrew-${CMAKE_SOURCE_DIR}" )
-    else (NOT DEFINED VERSION)
-        set( DAEMONVERSION "${VERSION}" )   
-    endif(NOT DEFINED VERSION)
-else (NOT DAEMONVERSION)
-    STRING(REGEX REPLACE "(-)[^-]+$" "" DAEMONVERSION ${DAEMONVERSION})
-    STRING(REGEX REPLACE "-" "." DAEMONVERSION ${DAEMONVERSION})
-endif(NOT DAEMONVERSION)
-
-message(STATUS "Build Version ${DAEMONVERSION}")
+#Can be changed via passing -DVERSION="XXX" to cmake
+if (NOT DEFINED VERSION)
+    FILE(READ "VERSION" DAEMONVERSION)
+else (NOT DEFINED VERSION)
+    set (DAEMONVERSION "${VERSION}")
+endif (NOT DEFINED VERSION)
+
+message(STATUS "Build Version ${DAEMONVERSION}${EXTRAVERSIONINFO}")
 
 execute_process(COMMAND git log --pretty=short WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} 
                 OUTPUT_FILE ${CMAKE_CURRENT_SOURCE_DIR}/CHANGELOG)
-- 
cgit v1.2.1