commit 0e2140e9310f15e658ac93b9fbe910cb2f2bd794
author that <github@that.at> Wed Aug 10 21:04:26 2016 +0200
committer Dees Troy <dees_troy@teamw.in> Mon Aug 22 16:46:09 2016 +0200
tree 3f7741159d641621beadee42f24d6386bf95161d
parent 908dd2513944490fbfca47f3081f126764605b62

Add git revision to startup message in recovery.log

This should make it easier to find the exact source for
a specific version of the binary.

Change-Id: I7e04dd9a3205cc643150a588b69b4bd691212ecb

Android.mk

diff --git a/Android.mk b/Android.mk
index 67e504f..326c249 100644
--- a/Android.mk
+++ b/Android.mk
@@ -172,6 +172,12 @@
 
 LOCAL_C_INCLUDES += system/extras/ext4_utils
 
+tw_git_revision := $(shell git -C $(LOCAL_PATH) rev-parse --short=8 HEAD 2>/dev/null)
+ifeq ($(shell git -C $(LOCAL_PATH) diff --quiet; echo $$?),1)
+    tw_git_revision := $(tw_git_revision)-dirty
+endif
+LOCAL_CFLAGS += -DTW_GIT_REVISION='"$(tw_git_revision)"'
+
 #TWRP Build Flags
 ifeq ($(TW_EXCLUDE_MTP),)
     LOCAL_SHARED_LIBRARIES += libtwrpmtp