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#!/bin/bash
# This script installs Klipper on a Raspberry Pi machine running the
# OctoPi distribution.
PYTHONDIR="${HOME}/klippy-env"
# Step 1: Install system packages
install_packages()
{
# Packages for python cffi
PKGLIST="python-virtualenv virtualenv python-dev libffi-dev build-essential"
# kconfig requirements
PKGLIST="${PKGLIST} libncurses-dev"
# hub-ctrl
PKGLIST="${PKGLIST} libusb-dev"
# AVR chip installation and building
PKGLIST="${PKGLIST} avrdude gcc-avr binutils-avr avr-libc"
# ARM chip installation and building
PKGLIST="${PKGLIST} stm32flash dfu-util libnewlib-arm-none-eabi"
PKGLIST="${PKGLIST} gcc-arm-none-eabi binutils-arm-none-eabi"
# Update system package info
report_status "Running apt-get update..."
sudo apt-get update
# Install desired packages
report_status "Installing packages..."
sudo apt-get install --yes ${PKGLIST}
}
# Step 2: Create python virtual environment
create_virtualenv()
{
report_status "Updating python virtual environment..."
# Create virtualenv if it doesn't already exist
[ ! -d ${PYTHONDIR} ] && virtualenv ${PYTHONDIR}
# Install/update dependencies
${PYTHONDIR}/bin/pip install -r ${SRCDIR}/scripts/klippy-requirements.txt
}
# Step 3: Install startup script
install_script()
{
report_status "Installing system start script..."
sudo cp "${SRCDIR}/scripts/klipper-start.sh" /etc/init.d/klipper
sudo update-rc.d klipper defaults
}
# Step 4: Install startup script config
install_config()
{
DEFAULTS_FILE=/etc/default/klipper
[ -f $DEFAULTS_FILE ] && return
report_status "Installing system start configuration..."
sudo /bin/sh -c "cat > $DEFAULTS_FILE" <<EOF
# Configuration for /etc/init.d/klipper
KLIPPY_USER=$USER
KLIPPY_EXEC=${PYTHONDIR}/bin/python
KLIPPY_ARGS="${SRCDIR}/klippy/klippy.py ${HOME}/printer.cfg -l /tmp/klippy.log"
EOF
}
# Step 5: Start host software
start_software()
{
report_status "Launching Klipper host software..."
sudo /etc/init.d/klipper restart
}
# Helper functions
report_status()
{
echo -e "\n\n###### $1"
}
verify_ready()
{
if [ "$EUID" -eq 0 ]; then
echo "This script must not run as root"
exit -1
fi
}
# Force script to exit if an error occurs
set -e
# Find SRCDIR from the pathname of this script
SRCDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )"/.. && pwd )"
# Run installation steps defined above
verify_ready
install_packages
create_virtualenv
install_script
install_config
start_software
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