* Improved git helper

* Fixed bugs

git_helper.cmake

@@ -1,43 +1,49 @@
-Function ( GitGetVersion GIT_ROOT OUT_MAJOR OUT_MINOR OUT_PATCH OUT_BUILD OUT_HASH )
-
-    If ( NOT EXISTS "${GIT_ROOT}/.git" )
-        Return ( )
-    EndIf ( )
-
-    Message ( "" )
-
-    # Execute process to get git revisions
+# Execute git command and return the output
+Function ( GitExecute COMMAND RESULT )
     Execute_Process ( COMMAND
-                        bash -c "git -C ${GIT_ROOT} show-ref --tags | egrep 'refs\/tags\/v?[0-9]+\.[0-9]+(\.[0-9]+(\.[0-9]+))' | head -1"
+                        bash -c "${COMMAND}"
                       RESULT_VARIABLE
                         GIT_RET
                       OUTPUT_VARIABLE
                         GIT_REV
                       ERROR_VARIABLE
                         GIT_ERR )
-    If ( NOT ${GIT_RET} EQUAL 0 )
-        Message ( FATAL_ERROR "Unable to get git revisions! ${GIT_RET}" )
+    If (    NOT ${GIT_RET} EQUAL 0
+         OR NOT "${GIT_ERR}" STREQUAL ""
+         OR     "${GIT_REV}" STREQUAL "" )
+        Message ( FATAL_ERROR "Unable to execute git command (command=${COMMAND} out=${GIT_REV}; err=${GIT_ERR}; ret=${GIT_RET})" )
+    EndIf ( )
+    Set ( ${RESULT} "${GIT_REV}" PARENT_SCOPE )
+EndFunction ( )
+
+# Get the version by reading the git tag
+Function ( GitGetVersion GIT_ROOT OUT_MAJOR OUT_MINOR OUT_PATCH OUT_BUILD OUT_HASH OUT_BEHIND OUT_DIRTY )
+
+    If ( NOT EXISTS "${GIT_ROOT}/.git" )
+        Return ( )
     EndIf ( )
-    If ( "${GIT_REV}" STREQUAL "" )
-        Return ()
-    EndIf ()
+
+    # Find the latest git tag
+    GitExecute ( "git describe --tags --abbrev=1 --match v[0-9].[0-9]* HEAD" TAG )
+    GitExecute ( "git status -s -uall" DIRTY )
+    GitExecute ( "git rev-parse HEAD" HASH )
 
     # Split the git revision string
-    String ( REPLACE " " ";" SPLIT ${GIT_REV} )
+    String ( REGEX REPLACE "^v" "" TAG "${TAG}" )
+    String ( REPLACE "-" ";" SPLIT "${TAG}" )
     List ( LENGTH SPLIT COUNT )
-    If ( NOT ${COUNT} EQUAL 2 )
-        Return ( )
+    If ( ${COUNT} LESS 2 )
+        Message ( FATAL_ERROR "Unable to split git tag into it's sub components: ${TAG}!" )
     EndIf ( )
-    List ( GET SPLIT 0 HASH )
-    List ( GET SPLIT 1 VERSION )
+    List ( GET SPLIT 0 VERSION )
+    List ( GET SPLIT 1 BEHIND )
 
     # Split the version
     String ( STRIP "${VERSION}" SPLIT )
-    String ( REGEX REPLACE "refs?\/tags?\/v?" "" SPLIT ${SPLIT} )
-    String ( REPLACE "." ";" SPLIT ${SPLIT} )
+    String ( REPLACE "." ";" SPLIT "${SPLIT}" )
     List ( LENGTH SPLIT COUNT )
     If ( ${COUNT} LESS 2 )
-        Message ( FATAL_ERROR "Unable to parse version string!" )
+        Message ( FATAL_ERROR "Unable to split version string: ${VERSION}!" )
     EndIf ( )
 
     # major
@@ -61,6 +67,17 @@ Function ( GitGetVersion GIT_ROOT OUT_MAJOR OUT_MINOR OUT_PATCH OUT_BUILD OUT_HA
     EndIf ( )
 
     # hash
+    String ( STRIP "${HASH}" HASH )
     Set ( ${OUT_HASH} ${HASH} PARENT_SCOPE )
 
+    # behind
+    Set ( ${OUT_BEHIND} ${BEHIND} PARENT_SCOPE )
+
+    # dirty
+    If ( DIRTY )
+        Set ( ${OUT_DIRTY} 1 PARENT_SCOPE )
+    Else ( )
+        Set ( ${OUT_DIRTY} 0 PARENT_SCOPE )
+    EndIf ( )
+
 EndFunction ( )

pedantic.cmake

@@ -152,7 +152,7 @@ Function ( Pedantic_Apply_Flags_Target TARGET )
         ForEach ( I IN LISTS TMP )
             Target_Compile_Options ( ${TARGET}
                                      ${ARG_VISIBILITY}
-                                        $<$<COMPILE_LANGUAGE:C>:${I}> )
+                                       ${I} )
         EndForEach ( )
     EndIf ( )
 
@@ -164,7 +164,7 @@ Function ( Pedantic_Apply_Flags_Target TARGET )
         ForEach ( I IN LISTS TMP )
             Target_Compile_Options ( ${TARGET}
                                      ${ARG_VISIBILITY}
-                                       $<$<COMPILE_LANGUAGE:CXX>:${I}> )
+                                       ${I} )
         EndForEach ( )
     EndIf ( )