Improved version check by adding a hash-check to compare installed an…

…d delivered bin.

README.md

@@ -1,7 +1,7 @@
 minimal_adb_fastboot
 ====================
 
-Last updated: 10.03.2015 | adb version: 1.0.32
+Last updated: 13.03.2015 | adb version: 1.0.32
 ------------------------
 Installs the adb and fastboot binaries for OS X.
 
@@ -20,6 +20,7 @@ Changelog:
 - 1.1	| 16.11.2014 Script can now be called from everywhere
 - 1.1.1	| 23.11.2014 Name change due to name confict with other adb installer.
 - 1.2	| 10.03.2015 Updated adb and fastboot binaries to platform-tools v22, adjusted script because binaries change without version number incremention.
+- 1.2.1 | 13.03.2015 Improved version check by adding a hash-check to compare installed and delivered bin. 
 
 Installer Package (legacy):
 ------------------

install.sh

@@ -12,13 +12,22 @@ VERSION="$($DIR/bins/./adb version | cut -d ' '  -f5)"
 #This is checking if the installed adb version is up to date.
 #If it is, it will quit the script.
 if [ "$VERSION" == "$VERSIONINSTALLED" ]; then
-		echo -e "It seems, ADB is up to date. However, there could be silent changes which "
-		echo -e "didn't increment the version number counter. Do you want to update ADB nevertheless?\n"
-		read -p "Please enter y(es) or n(o): " yn
-		case $yn in
-			[Yy]* ) ;;
-			[Nn]* ) echo -e "Quitting...\n\n"; exit 0;;
-		esac
+
+		#check md5 match
+		MD5="$(md5 $DIR/bins/adb | cut -d " " -f4 )"
+		MD5INSTALLED="$(md5 $(which adb) | cut -d " " -f4)"
+		if [ "$MD5" != "$MD5INSTALLED" ]; then
+			echo -e "$MD5 $MD5INSTALLED Although the version number of the adb binary didn't change, the file itself changed. "
+			echo -e "Probably there was a minor patch in the binary. Do you want to update the adb binary?\n"
+			read -p "Please enter y(es) or n(o): " yn
+			case $yn in
+				[Yy]* ) ;;
+				[Nn]* ) echo -e "Quitting...\n\n"; exit 0;;
+			esac
+		else
+			echo -e "Your adb binaries seem to be up to date. Please check github.com/simmac/minimal_adb_fastboot for updates!"
+			exit 0;
+		fi
 fi
 if [ "$VERSION" != "$VERSIONINSTALLED" ]; then
 	echo -e "\nadb is not installed or outdated."