dumpstate: touch: Init touch_predump service

go/touch_predump

Test: b/318578275
Test: Locally flash to check dump_touch logs on dogfood devices
Bug: 287907308
Change-Id: Ibc9df367549dd69c83936a7fd08465f7bb53ce80

touch/predump/dump_touch.sh

@@ -0,0 +1,25 @@
+#!/vendor/bin/sh
+
+DIR=/data/vendor/dump_touch
+LOCKFILE="$DIR"/dumping
+LOGFILE="$DIR"/dump.log
+
+if [ ! -f $LOCKFILE ]
+then
+	echo "-----------------------------------------------------"
+	echo "Error : PreDump Touch Logs couldn't be found."
+	echo "-----------------------------------------------------"
+	exit 2
+fi
+
+state=$(cat $LOCKFILE)
+if [ "$state" != 2 ]
+then
+  echo "Unexpected state! Expected 2 but found ${state}" >> $LOGFILE
+fi
+
+cat $LOGFILE
+echo "" > $LOGFILE
+
+echo 0 > $LOCKFILE
+