X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=CMakeLists.txt;h=be1159d7ac393dcaed2b674c88aba365b3ad116b;hb=4efded5491e991b2f6668bbe930d55a008224614;hp=44d1c9aac6dfd5172580c90488afc670a8583b9b;hpb=7377baa39e2029aef48cbaedfbe1b6003c95da7c;p=u%2Fmrichter%2FAliRoot.git

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 44d1c9aac6d..be1159d7ac3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-# -*- mode: cmake -*-
+# -*- mode: cmake -*-/usr/share/applications/thunderbird.desktop 
 
 # Top level CMakeList.txt file for the AliRoot Build System
 #
@@ -6,7 +6,7 @@
 #         Port of previous Makefile build to cmake
 
 
-cmake_minimum_required(VERSION 2.8.4 FATAL_ERROR)
+cmake_minimum_required(VERSION 2.8.8 FATAL_ERROR)
 
 #--------------------------------------------------------------------------------#
 # Set Basic CMake Configuration                                                  #
@@ -27,8 +27,8 @@ endif(NOT ALICE_ROOT)
 
 set(ALICE_INSTALL $ENV{ALICE_INSTALL})
 # Set AliRoot Installation directory 
-# If CMAKE_INSTALL_PREFIX was not set than we set it to ALICE_INSTALL. 
-# If ALICE_INSTALL was not defined than it will default to source directory
+# If CMAKE_INSTALL_PREFIX was not set, then we set it to ALICE_INSTALL. 
+# If ALICE_INSTALL was not defined, then it will default to the source directory
 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
     if(ALICE_INSTALL)
 	message(STATUS "AliRoot files will be installed in ${ALICE_INSTALL}")
@@ -187,7 +187,12 @@ set(LIBS ${ROOTCLIBS} ${ROOTPLIBS} ${SYSLIBS})
 
 # Configure ARVerion.h
 # ------------------------------
-#If the sources were taken from Git
+# If the sources were taken from Git
+# Sets 3 git variables
+#  - GIT_REFSPEC - complete name of the current reference
+#  - ALIROOT_BRANCH - name of the branch or tag extracted from the current reference
+#  - GIT_SHA1 - current hash in the long format
+#  - GIT_SHORT_SHA1 - current hash in the short format
 if(EXISTS ${PROJECT_SOURCE_DIR}/.git/)
  include(GetGitRevisionDescription)
  
@@ -195,19 +200,41 @@ if(EXISTS ${PROJECT_SOURCE_DIR}/.git/)
  
  if(GIT_FOUND)
   get_git_head_revision(GIT_REFSPEC GIT_SHA1)
-  message(STATUS "Aliroot branch - ${GIT_REFSPEC} Revision - ${GIT_SHA1} ")
+
+  # GIT_REFSPEC is empty for detached mode = tags in detached mode or checkout to specific hash
+ 
+
+  # returns the closest reference to the current hash
+  # name of the current tag or heads/branch in the case of branches
+  git_describe(ALIROOT_GIT_TAG "--all" "--abbrev=0")
 
   STRING(REGEX REPLACE "^(.+/)(.+)/(.*)$" "\\2" BRANCH_TYPE "${GIT_REFSPEC}" )
-  
+
+  # the revision is not set in the case of a branch, it means we are doing development
+  # and the revision will trigger a reconfiguration
   if(BRANCH_TYPE STREQUAL "heads")
    set(ALIROOT_REVISION "ThisIsaBranchNoRevisionProvided")
+   STRING(REGEX REPLACE "^(.+/)(.+/)(.*)$" "\\3" SHORT_BRANCH "${GIT_REFSPEC}" )
   else()
+   set(SHORT_BRANCH ${ALIROOT_GIT_TAG})
    set(ALIROOT_REVISION ${GIT_SHA1})
   endif()
 
-  STRING(REGEX REPLACE "^(.+/)(.+/)(.*)$" "\\3" SHORT_BRANCH "${GIT_REFSPEC}" )
-
   set(ALIROOT_BRANCH ${SHORT_BRANCH})
+  
+  # generate the short version of the revision hash
+  execute_process(COMMAND git rev-parse --short ${GIT_SHA1} 
+                          WORKING_DIRECTORY ${CMAKE_SOURCE_DIR} 
+                          OUTPUT_STRIP_TRAILING_WHITESPACE 
+                          RESULT_VARIABLE res
+                          OUTPUT_VARIABLE GIT_SHORT_SHA1)
+
+  # if the rev-parse fails we set the short sha to the long initial one
+  if(NOT res EQUAL 0)
+    set(GIT_SHORT_SHA1 ${GIT_SHA1})
+  endif()
+  
+  message(STATUS "Aliroot branch/tag: \"${ALIROOT_BRANCH}\" - Revision:  \"${GIT_SHORT_SHA1}\" ")
 
  else()
   message("Git not installed. I can't tell you which revision you are using!")
@@ -323,7 +350,7 @@ set(AEXT a)
 set(LIBPATH ${CMAKE_BINARY_DIR}/lib/tgt_${ALICE_TARGET})
 set(BINPATH ${CMAKE_BINARY_DIR}/bin/tgt_${ALICE_TARGET})
 set(EXPORTDIR ${ALICE_ROOT}/include)
-#set(BINLIBDIRS -L${ALICE_ROOT}/${LIBPATH})
+set(BINLIBDIRS -L${ALICE_ROOT}/${LIBPATH})
 set(RAWDIRO ${CMAKE_BINARY_DIR}/RAW)
 set(ALIMDCSPECFILE ${RAWDIRO}/alimdc.spec)
 set(RAWDatabaseALIB ${LIBPATH}/libRAWDatabase.${AEXT})