Merge branch 'feature-installer-cnn'

INSTALL.sh

 #!/bin/bash
 
+RED='\033[0;31m'
+BLUE='\033[0;34m'
+YELLOW='\033[0;33m'
+NC='\033[0m'
+
 echo "[PYNOVISAO INSTALLER] Installing PYNOVISAO... Please wait!"
 
 #check if is root
 if [ "$EUID" -ne 0 ]
-  then echo "[PYNOVISAO INSTALLER] ERROR! Please run as root."
+  then printf "${RED}[PYNOVISAO INSTALLER] ERROR! Please run as root.${NC}"
+  echo
   exit
 fi
 
-sudo apt-get update
-sudo apt-get -y install libfreetype6-dev tk tk-dev python-pip default-jre default-jdk weka weka-doc python-tk
+echo "[PYNOVISAO INSTALLER] Updating apt-get..."
+sudo apt-get -qq update
+echo "[PYNOVISAO INSTALLER] Installing prerequisites..."
+sudo apt-get -qq -y install libfreetype6-dev tk tk-dev python-pip default-jre default-jdk weka weka-doc python-tk
 
-echo "[PYNOVISAO INSTALLER] Installing libraries..."
-pip install --upgrade pip
+echo "[PYNOVISAO INSTALLER] Upgrading pip..."
+pip install --upgrade pip  --quiet
 # Numpy must be installed before installing javabridge
-pip install numpy
-pip install -r requeriments.txt
+echo "[PYNOVISAO INSTALLER] Installing numpy..."
+pip install numpy --quiet
+echo "[PYNOVISAO INSTALLER] Installing libraries..."
+pip install -r requeriments.txt --quiet
+
+printf "${YELLOW} \n======== WARNING ========\n"
+printf "The Keras is necessary so that it is possible to use CNN. It is recommended to install the version for GPU processing (if available) but it is also possible to use CPU processing.\n"
+printf "To install the GPU version (tricky) follow the steps at: https://www.tensorflow.org/install/install_linux"
+printf "${NC}\n"
+read -p "Would you like to install keras CPU libraries? [y/n]" -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]
+then
+   echo "[PYNOVISAO INSTALLER] Installing keras libraries..."
+   sudo pip install tensorflow 
+   sudo pip install keras
+fi
 
 echo
-echo "[PYNOVISAO INSTALLER] Installation completed!"
+printf "${BLUE}[PYNOVISAO INSTALLER] Installation completed!${NC}"
 echo