DB410c_build.sh.patch

--- Desktop/DB410c_build.sh.txt	2016-07-10 17:16:22.000000000 -0700
+++ Desktop/DB410c_build.sh.txt.new	2016-07-10 19:34:36.000000000 -0700
@@ -8,14 +8,23 @@
 CAFTAG="LA.BR.1.2.4-01810-8x16.0.xml"
 
 function SBC410C_SOURCE_CODE() {
-# Do repo sanity test
-if [ $? -eq 0 ]
+if : "run repo sanity test here in the future"
 then
 	echo "Downloading code please wait.."
-	repo init -u git://codeaurora.org/platform/manifest.git -b release -m ${CAFTAG} --repo-url=git://codeaurora.org/tools/repo.git 
-	repo sync -j4
-	repo forall -c "git checkout -b master"
-	repo forall -c "git checkout -b LA.BR.1.2.4-01810-8x16"
+	repo init -u git://codeaurora.org/platform/manifest.git -b release -m ${CAFTAG} --repo-url=git://codeaurora.org/tools/repo.git ||
+		{ echo "ERROR: repo init -u failed." >&2 ; return 1; }
+	repo sync -j4 # ignore error here
+	# for some reason 'repo sync' returns before all git subprocesses completes
+	# we have to wait the subprocesses to exit before running 'git checkout', or it will fail
+	# since there's no easy way to detect that (w/o fixing repo sync), retry "repo forall ..." until it succeeds.
+	local retry=0
+	local max_retry=120;
+	while (( max_retry < retry++ ))
+	do
+		repo forall -c "git checkout -b LA.BR.1.2.4-01810-8x16" && return 0
+		sleep 1
+	done
+	return 1
 else
 	echo "repo tool problem, make sure you have setup your build environment"
 	echo "1) http://source.android.com/source/initializing.html"