Add android_launch_app script to allow command line options to be passed to the sampleApp when star…

platform_tools/android/bin/android_setup.sh

 #!/bin/bash
 ###############################################################################
 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 ###############################################################################
 #
 # android_setup.sh: Sets environment variables used by other Android scripts.
 
@@ skipping 202 matching lines @@
   ANDROID_LS=`$ADB $DEVICE_SERIAL shell ls -ld $ANDROID_DST`
   HOST_LS=`ls -ld $HOST_SRC`
   if [ "${ANDROID_LS:0:1}" == "d" -a "${HOST_LS:0:1}" == "-" ];
   then
     ANDROID_DST="${ANDROID_DST}/$(basename ${HOST_SRC})"
   fi
 
 
   ANDROID_LS=`$ADB $DEVICE_SERIAL shell ls -ld $ANDROID_DST`
   if [ "${ANDROID_LS:0:1}" == "-" ]; then
-    #get the MD5 for dst and src
-    ANDROID_MD5=`$ADB $DEVICE_SERIAL shell md5 $ANDROID_DST`
+    #get the MD5 for dst and src depending on OS and/or OS revision
+    ANDROID_MD5_SUPPORT=`$ADB $DEVICE_SERIAL shell ls -ld /system/bin/md5`
+    if [ "${ANDROID_MD5_SUPPORT:0:15}" != "/system/bin/md5" ]; then
+      ANDROID_MD5=`$ADB $DEVICE_SERIAL shell md5 $ANDROID_DST`
+    else
+      ANDROID_MD5=`$ADB $DEVICE_SERIAL shell md5sum $ANDROID_DST`
+    fi
+
     if [ $(uname) == "Darwin" ]; then
       HOST_MD5=`md5 -q $HOST_SRC`
     else
       HOST_MD5=`md5sum $HOST_SRC`
     fi
 
     if [ "${ANDROID_MD5:0:32}" != "${HOST_MD5:0:32}" ]; then
       echo -n "$ANDROID_DST "
       $ADB $DEVICE_SERIAL push $HOST_SRC $ANDROID_DST
     fi
   elif [ "${ANDROID_LS:0:1}" == "d" ]; then
     for FILE_ITEM in `ls $HOST_SRC`; do
       adb_push_if_needed "${HOST_SRC}/${FILE_ITEM}" "${ANDROID_DST}/${FILE_ITEM}"
     done
   else
     HOST_LS=`ls -ld $HOST_SRC`
     if [ "${HOST_LS:0:1}" == "d" ]; then
       $ADB $DEVICE_SERIAL shell mkdir -p $ANDROID_DST
       adb_push_if_needed $HOST_SRC $ANDROID_DST
     else
       echo -n "$ANDROID_DST "
       $ADB $DEVICE_SERIAL shell mkdir -p "$(dirname "$ANDROID_DST")"
       $ADB $DEVICE_SERIAL push $HOST_SRC $ANDROID_DST
     fi
   fi
 }
 
 setup_device "${DEVICE_ID}"