RASCSI/python/web/start.sh

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#!/usr/bin/env bash
set -e
# set -x # Uncomment to Debug
cd "$(dirname "$0")"
# verify packages installed
ERROR=0
if ! command -v genisoimage &> /dev/null ; then
echo "genisoimage could not be found"
echo "Run 'sudo apt install genisoimage' to fix."
ERROR=1
fi
if ! command -v python3 &> /dev/null ; then
echo "python3 could not be found"
echo "Run 'sudo apt install python3' to fix."
ERROR=1
fi
if ! python3 -m venv --help &> /dev/null ; then
echo "venv could not be found"
echo "Run 'sudo apt install python3-venv' to fix."
ERROR=1
fi
if ! command -v unzip &> /dev/null ; then
echo "unzip could not be found"
echo "Run 'sudo apt install unzip' to fix."
ERROR=1
fi
if ! command -v unar &> /dev/null ; then
echo "unar could not be found"
echo "Run 'sudo apt install unar' to fix."
ERROR=1
fi
if [ $ERROR = 1 ] ; then
echo
echo "Fix errors and re-run ./start.sh"
exit 1
fi
# Test for two known broken venv states
if test -e venv; then
GOOD_VENV=true
if ! test -e venv/bin/activate; then
GOOD_VENV=false
else
source venv/bin/activate
pip3 list 1> /dev/null
test $? -eq 1 && GOOD_VENV=false
fi
if ! "$GOOD_VENV"; then
echo "Deleting bad python venv"
sudo rm -rf venv
fi
fi
# Create the venv if it doesn't exist
if ! test -e venv; then
echo "Creating python venv for web server"
python3 -m venv venv
echo "Activating venv"
source venv/bin/activate
echo "Installing requirements.txt"
pip3 install wheel --no-index --find-links=$HOME/.pip_cache
# Reference: https://pip.pypa.io/en/latest/user_guide/#installing-from-local-packages
pip3 install -r requirements.txt --no-index --find-links=$HOME/.pip_cache
if git rev-parse --is-inside-work-tree &> /dev/null; then
git rev-parse HEAD > current
fi
fi
source venv/bin/activate
# Detect if someone updates the git repo - we need to re-run pip3 install.
set +e
git rev-parse --is-inside-work-tree &> /dev/null
if [[ $? -eq 0 ]]; then
set -e
if ! test -e current; then
git rev-parse > current
elif [ "$(cat current)" != "$(git rev-parse HEAD)" ]; then
echo "New version detected, updating libraries from requirements.txt"
pip3 install -r requirements.txt --no-index --find-links=$HOME/.pip_cache
git rev-parse HEAD > current
fi
else
echo "Warning: Not running from a valid git repository. Will not be able to update the code."
fi
set -e
pybabel compile -d src/translations
# parse arguments
while [ "$1" != "" ]; do
PARAM=$(echo "$1" | awk -F= '{print $1}')
VALUE=$(echo "$1" | awk -F= '{print $2}')
case $PARAM in
-p | --web-port)
ARG_PORT="--port $VALUE"
;;
-P | --password)
ARG_PASSWORD="--password $VALUE"
;;
-h | --backend-host)
ARG_BACKEND_HOST="--backend-host $VALUE"
;;
-o | --backend-port)
ARG_BACKEND_PORT="--backend-port $VALUE"
;;
-l | --log-level)
ARG_LOG_LEVEL="--log-level $VALUE"
;;
-d | --dev-mode)
ARG_DEV_MODE="--dev-mode"
;;
*)
echo "ERROR: unknown parameter \"$PARAM\""
exit 1
;;
esac
shift
done
PYTHON_COMMON_PATH=$(dirname $PWD)/common/src
export PYTHONPATH=$PWD/src:${PYTHON_COMMON_PATH}
cd src || exit 1
if [[ $ARG_DEV_MODE ]]; then
echo "Starting PiSCSI Web UI (dev mode) ..."
watchmedo auto-restart --directory=../../ --pattern=*.py --recursive -- \
python3 web.py ${ARG_PORT} ${ARG_PASSWORD} ${ARG_BACKEND_HOST} ${ARG_BACKEND_PORT} ${ARG_LOG_LEVEL} ${ARG_DEV_MODE}
else
echo "Starting PiSCSI Web UI ..."
python3 web.py ${ARG_PORT} ${ARG_PASSWORD} ${ARG_BACKEND_HOST} ${ARG_BACKEND_PORT} ${ARG_LOG_LEVEL} ${ARG_DEV_MODE}
fi