tweaks to buildinfo

We wouldn't really have release branches, building will happen
from annotated tags.

Made it so building tag revision equals to a master branch.

build_files/cmake/buildinfo.cmake

@@ -35,8 +35,26 @@ if(EXISTS ${SOURCE_DIR}/.git)
 			STRING(REGEX REPLACE "^[ \t]+" "" _git_contains_check "${_git_contains_check}")
 			if(_git_contains_check STREQUAL "master")
 				set(MY_WC_BRANCH "master")
+			else()
+				execute_process(COMMAND git show-ref --tags -d
+				                WORKING_DIRECTORY ${SOURCE_DIR}
+				                OUTPUT_VARIABLE _git_tag_hashes
+				                OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+				execute_process(COMMAND git rev-parse HEAD
+				                WORKING_DIRECTORY ${SOURCE_DIR}
+				                OUTPUT_VARIABLE _git_head_hash
+				                OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+				if(_git_tag_hashes MATCHES "${_git_head_hash}")
+					set(MY_WC_BRANCH "master")
+				endif()
+
+				unset(_git_tag_hashes)
+				unset(_git_head_hashs)
 			endif()
 
+
 			unset(_git_contains_check)
 		else()
 			execute_process(COMMAND git log HEAD..@{u}

build_files/scons/tools/Blender.py

@@ -430,6 +430,11 @@ def buildinfo(lenv, build_type):
                 master_check = os.popen('git branch --list master --contains ' + build_hash).read().strip()
                 if master_check == 'master':
                     build_branch = 'master'
+                else:
+                    head_hash = os.popen('git rev-parse HEAD').read().strip()
+                    tag_hashes = os.popen('git show-ref --tags -d').read()
+                    if tag_hashes.find(head_hash) != -1:
+                        build_branch = 'master'
 
             if build_hash == '':
                 build_hash = os.popen('git rev-parse --short HEAD').read().strip()