first commit

Script/install_scratch.sh

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+echo "This script will install Scratch for GrovePi+ on a standard Stretch Raspbian"
+
+
+PIHOME=/home/pi
+RASPBIAN=$PIHOME/di_update/Raspbian_For_Robots
+DEXTER=Dexter
+ROBOT_FOLDER=GrovePi
+LIB=lib
+LIB_PATH=$PIHOME/$DEXTER/$LIB
+DEXTERLIB_PATH=$LIB_PATH/$DEXTER
+SCRATCH=Scratch_GUI
+SCRATCH_PATH=$DEXTERLIB_PATH/$SCRATCH
+RFR_TOOLS_PATH=$LIB_PATH/$DEXTER/RFR_Tools
+
+# let's test for the presence of ~/Dexter/lib/Dexter as a sign that all tools are 
+# pre-installed
+if [ ! -d "$DEXTERLIB_PATH" ]
+then
+    echo "Installation issues. Please install GrovePi first."
+    echo "curl -kL dexterindustries.com/update_grovepi | bash"
+    exit 1
+fi
+if [ ! -d "$RFR_TOOLS_PATH" ]
+then
+    echo "Installation issues. Please install GrovePi first."
+    echo "curl -kL dexterindustries.com/update_grovepi | bash"
+    exit 2
+fi
+if [ ! -d "$PIHOME/$DEXTER/$ROBOT_FOLDER" ]
+then
+    echo "Installation issues. Please install GrovePi first."
+    echo "curl -kL dexterindustries.com/update_grovepi | bash"
+    exit 3
+fi
+
+source $DEXTERLIB_PATH/script_tools/functions_library.sh
+
+# feedback  "Installing some libraries"
+# sudo apt-get install python-smbus python3-smbus
+
+setup_modules_and_config(){
+    feedback "activating I2C"
+    sudo sed -i "/i2c-dev/d" /etc/modules
+    sudo echo "i2c-dev" >> /etc/modules
+    sudo sed -i "/dtparam=i2c_arm=on/d" /boot/config.txt
+    sudo echo "dtparam=i2c_arm=on" >> /boot/config.txt
+}
+
+install_scratchpy() {
+    # installing scratch_controller
+    pushd $LIB_PATH > /dev/null
+    delete_folder scratchpy
+    git clone --depth=1 https://github.com/DexterInd/scratchpy
+    cd scratchpy
+    sudo make install > /dev/null
+    popd > /dev/null
+}
+
+
+# Copy shortcut to desktop.
+install_desktop_icons() {
+    feedback "Installing Scratch on the desktop"
+
+    if [ -f "/usr/bin/scratch" ]
+    then
+        echo "Installing support for Scratch 1.4"
+        echo $RFR_TOOLS_PATH/Scratch_GUI/Scratch_Start.desktop
+        sudo cp $RFR_TOOLS_PATH/Scratch_GUI/Scratch_Start.desktop /home/pi/Desktop/Scratch_Start.desktop
+    else 
+        echo "scratch not found"
+    fi
+
+    if [ -f "/usr/bin/scratch2" ]
+    then
+        echo "Installing support for Scratch 2"
+        pushd $PIHOME/$DEXTER/$ROBOT_FOLDER/Software/Scratch/s2pifiles > /dev/null
+        sudo cp extensions.json /usr/lib/scratch2/scratch_extensions/extensions.json
+        sudo cp piGrovePiExtension.js /usr/lib/scratch2/scratch_extensions/piGrovePiExtension.js
+        sudo cp grovepi.html /usr/lib/scratch2/scratch_extensions/grovepi.html
+        sudo cp -u grovepi.png /usr/lib/scratch2/medialibrarythumbnails/grovepi.png
+        popd > /dev/null
+        sudo cp $PIHOME/$DEXTER/$ROBOT_FOLDER/Software/Scratch/Local_Scratch2_Start.desktop /home/pi/Desktop/Local_Scratch2_Start.desktop
+    fi
+
+    # Desktop shortcut permissions.
+    sudo chmod +x $PIHOME/Desktop/*.desktop
+}
+
+feedback "Installing Scratch Environment"
+setup_modules_and_config
+install_scratchpy
+
+sudo rm -r $DEXTERLIB_PATH/$SCRATCH
+mkdir -p $DEXTERLIB_PATH/$SCRATCH
+cp -r $RFR_TOOLS_PATH/$SCRATCH $DEXTERLIB_PATH/
+
+install_desktop_icons
+
+# Make select_state, error_log, nohup.out readable and writable
+sudo echo "GrovePi" >> $SCRATCH_PATH/selected_state
+sudo touch $SCRATCH_PATH/error_log
+sudo chmod 666 $SCRATCH_PATH/selected_state
+sudo chmod 666 $SCRATCH_PATH/error_log
+
+sudo cp  $PIHOME/$DEXTER/$ROBOT_FOLDER/Software/Scratch/new.sb $PIHOME/$DEXTER/$LIB/$DEXTER/$SCRATCH/new.sb
+
+# transferring Scratch examples into proper Scratch folder
+sudo rm  /usr/share/scratch/Projects/$ROBOT_FOLDER 2> /dev/null
+sudo ln -s $PIHOME/$DEXTER/$ROBOT_FOLDER/Software/Scratch/Examples /usr/share/scratch/Projects/$ROBOT_FOLDER  2> /dev/null
+
+feedback "You now have a Scratch icon on your desktop. Double clicking it will start Scratch with all the necessary configuration to control your GrovePi+"
+feedback "Please note that you cannot use Scratch from the menu or double click on a Scratch file to control your robot."