pi-hole/advanced/Scripts/update.sh
2016-11-11 13:56:18 +00:00

166 lines
6.1 KiB
Bash

#!/usr/bin/env bash
# Pi-hole: A black hole for Internet advertisements
# (c) 2015, 2016 by Jacob Salmela
# Network-wide ad blocking via your Raspberry Pi
# http://pi-hole.net
# Check Pi-hole core and admin pages versions and determine what
# upgrade (if any) is required. Automatically updates and reinstalls
# application if update is detected.
#
# Pi-hole is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
# Variables
readonly ADMIN_INTERFACE_GIT_URL="https://github.com/pi-hole/AdminLTE.git"
readonly ADMIN_INTERFACE_DIR="/var/www/html/admin"
readonly PI_HOLE_GIT_URL="https://github.com/pi-hole/pi-hole.git"
readonly PI_HOLE_FILES_DIR="/etc/.pihole"
is_repo() {
# Use git to check if directory is currently under VCS, return the value
local directory="${1}"
git -C "${directory}" status --short &> /dev/null
return
}
prep_repo() {
# Prepare directory for local repository building
local directory="${1}"
rm -rf "${directory}" &> /dev/null
return
}
make_repo() {
# Remove the non-repod interface and clone the interface
local remoteRepo="${2}"
local directory="${1}"
(prep_repo "${directory}" && git clone -q --depth 1 "${remoteRepo}" "${directory}" > /dev/null)
return
}
update_repo() {
local directory="${1}"
local retVal=0
# Pull the latest commits
# Stash all files not tracked for later retrieval
git -C "${directory}" stash --all --quiet &> /dev/null || ${retVal}=1
# Force a clean working directory for cloning
git -C "${directory}" clean --force -d &> /dev/null || ${retVal}=1
# Fetch latest changes and apply
git -C "${directory}" pull --quiet &> /dev/null || ${retVal}=1
return ${retVal}
}
getGitFiles() {
# Setup git repos for directory and repository passed
# as arguments 1 and 2
local directory="${1}"
local remoteRepo="${2}"
echo ":::"
echo "::: Checking for existing repository..."
if is_repo "${directory}"; then
echo -n "::: Updating repository in ${directory}..."
update_repo "${directory}" || (echo "*** Error: Could not update local repository. Contact support."; exit 1)
echo " done!"
else
echo -n "::: Cloning ${remoteRepo} into ${directory}..."
make_repo "${directory}" "${remoteRepo}" || (echo "Unable to clone repository, please contact support"; exit 1)
echo " done!"
fi
}
main() {
local pihole_version_current
local pihole_version_latest
local web_version_current
local web_version_latest
if ! is_repo "${PI_HOLE_FILES_DIR}" || ! is_repo "${ADMIN_INTERFACE_DIR}" ; then #This is unlikely
echo "::: Critical Error: One or more Pi-Hole repos are missing from system!"
echo "::: Please re-run install script from https://github.com/pi-hole/pi-hole"
exit 1;
fi
echo "::: Checking for updates..."
# Checks Pi-hole version string in format vX.X.X
pihole_version_current="$(/usr/local/bin/pihole version --pihole --current)"
pihole_version_latest="$(/usr/local/bin/pihole version --pihole --latest)"
web_version_current="$(/usr/local/bin/pihole version --admin --current)"
web_version_latest="$(/usr/local/bin/pihole version --admin --latest)"
if [[ "${pihole_version_latest}" == "-1" || "${web_version_latest}" == "-1" ]]; then
echo "*** Unable to contact GitHub for latest version. Please try again later, contact support if this continues."
exit 1
fi
# Logic
# If latest versions are blank - we've probably hit Github rate limit (stop running `pihole -up so often!):
# Update anyway
# If Core up to date AND web up to date:
# Do nothing
# If Core up to date AND web NOT up to date:
# Pull web repo
# If Core NOT up to date AND web up to date:
# pull pihole repo, run install --unattended -- reconfigure
# if Core NOT up to date AND web NOT up to date:
# pull pihole repo run install --unattended
if [[ "${pihole_version_current}" == "${pihole_version_latest}" ]] && [[ "${web_version_current}" == "${web_version_latest}" ]]; then
echo ":::"
echo "::: Pi-hole version is $pihole_version_current"
echo "::: Web Admin version is $web_version_current"
echo ":::"
echo "::: Everything is up to date!"
exit 0
elif [[ "${pihole_version_current}" == "${pihole_version_latest}" ]] && [[ "${web_version_current}" < "${web_version_latest}" ]]; then
echo ":::"
echo "::: Pi-hole Web Admin files out of date"
getGitFiles "${ADMIN_INTERFACE_DIR}" "${ADMIN_INTERFACE_GIT_URL}"
web_updated=true
elif [[ "${pihole_version_current}" < "${pihole_version_latest}" ]] && [[ "${web_version_current}" == "${web_version_latest}" ]]; then
echo "::: Pi-hole core files out of date"
getGitFiles "${PI_HOLE_FILES_DIR}" "${PI_HOLE_GIT_URL}"
/etc/.pihole/automated_install/basic-install.sh --reconfigure --unattended || echo "Unable to complete update, contact Pi-hole" && exit 1
core_updated=true
elif [[ "${pihole_version_current}" < "${pihole_version_latest}" ]] && [[ "${web_version_current}" < "${web_version_latest}" ]]; then
echo "::: Updating Everything"
getGitFiles "${PI_HOLE_FILES_DIR}" "${PI_HOLE_GIT_URL}"
/etc/.pihole/automated_install/basic-install.sh --unattended || echo "Unable to complete update, contact Pi-hole" && exit 1
web_updated=true
core_updated=true
else
echo "*** Update script has malfunctioned, fallthrough reached. Please contact support"
exit 1
fi
if [[ "${web_updated}" == true ]]; then
web_version_current="$(/usr/local/bin/pihole version --admin --current)"
echo ":::"
echo "::: Web Admin version is now at ${web_version_current}"
echo "::: If you had made any changes in '/var/www/html/admin/', they have been stashed using 'git stash'"
fi
if [[ "${core_updated}" == true ]]; then
pihole_version_current="$(/usr/local/bin/pihole version --pihole --current)"
echo ":::"
echo "::: Pi-hole version is now at ${pihole_version_current}"
echo "::: If you had made any changes in '/etc/.pihole/', they have been stashed using 'git stash'"
fi
echo ""
exit 0
}
main