writefreely/scripts/upgrade-server.sh

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#! /bin/bash
###############################################################################
## writefreely update script ##
## ##
## WARNING: running this script will overwrite any modifed assets or ##
## template files. If you have any custom changes to these files you ##
## should back them up FIRST. ##
## ##
## This must be run from the web application root directory ##
## i.e. /var/www/writefreely, and operates under the assumption that you##
## have not installed the binary `writefreely` in another location. ##
###############################################################################
#
# Copyright © 2019-2020 Musing Studio LLC.
#
# This file is part of WriteFreely.
#
# WriteFreely is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, included
# in the LICENSE file in this source code package.
#
# only execute as root, or use sudo
if [[ `id -u` -ne 0 ]]; then
echo "You must login as root, or execute this script with sudo"
exit 10
fi
# go ahead and check for the latest release on linux
echo "Checking for updates..."
url=`curl -s https://api.github.com/repos/writeas/writefreely/releases/latest | grep 'browser_' | grep 'linux' | grep 'amd64' | cut -d\" -f4`
# check current version
bin_output=`./writefreely -v`
if [ -z "$bin_output" ]; then
exit 1
fi
current=${bin_output:12:5}
echo "Current version is v$current"
# grab latest version number
IFS='/'
read -ra parts <<< "$url"
latest=${parts[-2]}
echo "Latest release is $latest"
IFS='.'
read -ra cv <<< "$current"
read -ra lv <<< "${latest#v}"
IFS=' '
tempdir=$(mktemp -d)
if [[ ${lv[0]} -gt ${cv[0]} ]]; then
echo "New major version available."
echo "Downloading..."
`wget -P $tempdir -q --show-progress $url`
elif [[ ${lv[0]} -eq ${cv[0]} ]] && [[ ${lv[1]} -gt ${cv[1]} ]]; then
echo "New minor version available."
echo "Downloading..."
`wget -P $tempdir -q --show-progress $url`
elif [[ ${lv[2]} -gt ${cv[2]} ]]; then
echo "New patch version available."
echo "Downloading..."
`wget -P $tempdir -q --show-progress $url`
else
echo "Up to date."
exit 0
fi
filename=${parts[-1]}
# extract
echo "Extracting files..."
tar -zxf $tempdir/$filename -C $tempdir
# stop service
echo "Stopping writefreely systemd service..."
if `systemctl start writefreely`; then
echo "Success, service stopped."
else
echo "Upgrade failed to stop the systemd service, exiting early."
exit 1
fi
# copy files
echo "Copying files..."
cp -r $tempdir/writefreely/{pages,static,templates,writefreely} .
# migrate db
./writefreely -migrate
# restart service
echo "Starting writefreely systemd service..."
if `systemctl start writefreely`; then
echo "Success, version has been upgraded to $latest."
else
echo "Upgrade complete, but failed to restart service."
exit 1
fi