Add missing dependencies to install.sh and warn ARMv6 users of incomp…

…atibility

install.sh

@@ -1,11 +1,21 @@
 #!/usr/bin/env bash
 
+MAIN_PY="
+import os.path
+activate_this = os.path.join(os.path.dirname(__file__), '../env/bin/activate_this.py')
+with open(activate_this) as f:
+    exec(f.read(), {'__file__': activate_this})
+
+import examples.voice.assistant_library_with_local_commands_demo as assistant
+assistant.main()
+"
+
 SERVICE="[Unit]
 Description=Google Assistant for Raspberry Pi
 After=network.target
 
 [Service]
-ExecStart=/bin/bash -c 'source env/bin/activate && env/bin/python3 -u src/AssistantPi.py'
+ExecStart=/usr/bin/python3 -u src/AssistantPi.py
 WorkingDirectory=$HOME/AIY-projects-python
 StandardOutput=inherit
 StandardError=inherit
@@ -16,6 +26,13 @@ User=$USER
 WantedBy=multi-user.target
 "
 
+if [ "$(uname -m)" = "armv6" ]; then
+  echo -e "\e[1;31mError: AssistantPi does not work on the Pi Zero and Pi 1.\e[0m
+If you are using a device with an ARMv6 CPU, try this project instead:
+    https://github.com/warchildmd/google-assistant-hotword-raspi"
+  exec $SHELL
+fi
+
 if [ -f $HOME/AIY-projects-python/src/AssistantPi.py ]; then
   echo -e "\e[1;31mError: AssistantPi is already installed.\e[0m
 Try running upgrade.sh or uninstall.sh instead."
@@ -26,27 +43,26 @@ if [ ! -f $HOME/assistant.json ]; then
   echo -e "\e[1;31mError: You need client secrets to use the Assistant API.\e[0m
 Follow these instructions:
     https://developers.google.com/api-client-library/python/auth/installed-app#creatingcred
-and put the file at /home/pi/assistant.json"
+and put the file at $HOME/assistant.json"
   exec $SHELL
 fi
 
-sudo apt-get install git virtualenv
+sudo apt-get install git libttspico-utils python3-dev python3-numpy virtualenv
 
 git clone https://github.com/google/aiyprojects-raspbian.git $HOME/AIY-projects-python
 cd $HOME/AIY-projects-python
 
 virtualenv --system-site-packages -p python3 env
 env/bin/pip install -e src
-env/bin/pip install google-auth-oauthlib  # TODO Temporary fix for missing dependency
+env/bin/pip install google-auth-oauthlib  # HACK Temporary fix for missing dependency
 
-ln -s examples/voice/assistant_library_with_local_commands_demo.py src/AssistantPi.py
+echo "$MAIN_PY" > src/AssistantPi.py
 echo "$SERVICE" | sudo tee /lib/systemd/system/AssistantPi.service > /dev/null
 
 sudo systemctl daemon-reload
 sudo systemctl enable AssistantPi.service
 
-source env/bin/activate
-env/bin/python3 src/AssistantPi.py
+python3 src/AssistantPi.py
 
 echo
 sudo systemctl start AssistantPi.service