pi-hole/advanced/Scripts/update.sh
2017-07-01 23:52:10 +02:00

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#!/usr/bin/env bash
# Pi-hole: A black hole for Internet advertisements
# (c) 2017 Pi-hole, LLC (https://pi-hole.net)
# Network-wide ad blocking via your own hardware.
#
# 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.
#
# This file is copyright under the latest version of the EUPL.
# Please see LICENSE file for your rights under this license.
# 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"
# shellcheck disable=SC2034
PH_TEST=true
# Have to ignore the following rule as spaces in paths are not supported by ShellCheck
#shellcheck disable=SC1090
source "${PI_HOLE_FILES_DIR}/automated install/basic-install.sh"
source "/opt/pihole/COL_TABLE"
# is_repo() sourced from basic-install.sh
# make_repo() sourced from basic-install.sh
# update_repo() source from basic-install.sh
# getGitFiles() sourced from basic-install.sh
GitCheckUpdateAvail() {
local directory="${1}"
curdir=$PWD
cd "${directory}" || return
# Fetch latest changes in this repo
git fetch --quiet origin
# @ alone is a shortcut for HEAD. Older versions of git
# need @{0}
LOCAL="$(git rev-parse "@{0}")"
# The suffix @{upstream} to a branchname
# (short form <branchname>@{u}) refers
# to the branch that the branch specified
# by branchname is set to build on top of#
# (configured with branch.<name>.remote and
# branch.<name>.merge). A missing branchname
# defaults to the current one.
REMOTE="$(git rev-parse "@{upstream}")"
if [[ ${#LOCAL} == 0 ]]; then
echo -e " ${COL_LIGHT_RED}Error: Local revision could not be obtained, ask Pi-hole support."
echo -e " Additional debugging output:${COL_NC}"
git status
exit
fi
if [[ ${#REMOTE} == 0 ]]; then
echo -e " ${COL_LIGHT_RED}Error: Remote revision could not be obtained, ask Pi-hole support."
echo -e " Additional debugging output:${COL_NC}"
git status
exit
fi
# Change back to original directory
cd "${curdir}" || exit
if [[ "${LOCAL}" != "${REMOTE}" ]]; then
# Local branch is behind remote branch -> Update
return 0
else
# Local branch is up-to-date or in a situation
# where this updater cannot be used (like on a
# branch that exists only locally)
return 1
fi
}
FTLcheckUpdate() {
local FTLversion
FTLversion=$(/usr/bin/pihole-FTL tag)
local FTLlatesttag
FTLlatesttag=$(curl -sI https://github.com/pi-hole/FTL/releases/latest | grep 'Location' | awk -F '/' '{print $NF}' | tr -d '\r\n')
if [[ "${FTLversion}" != "${FTLlatesttag}" ]]; then
return 0
else
return 1
fi
}
main() {
local pihole_version_current
local web_version_current
#shellcheck disable=1090,2154
source "${setupVars}"
#This is unlikely
if ! is_repo "${PI_HOLE_FILES_DIR}" ; then
echo -e " ${COL_LIGHT_RED}Critical Error: Core Pi-hole repo is missing from system!"
echo -e " Please re-run install script from https://github.com/pi-hole/pi-hole${COL_NC}"
exit 1;
fi
echo -e " ${INFO} Checking for updates..."
if GitCheckUpdateAvail "${PI_HOLE_FILES_DIR}" ; then
core_update=true
echo -e " ${INFO} Pi-hole Core:\t${COL_YELLOW}update available${COL_NC}"
else
core_update=false
echo -e " ${INFO} Pi-hole Core:\t${COL_LIGHT_GREEN}up to date${COL_NC}"
fi
if FTLcheckUpdate ; then
FTL_update=true
echo -e " ${INFO} FTL:\t\t${COL_YELLOW}update available${COL_NC}"
else
FTL_update=false
echo -e " ${INFO} FTL:\t\t${COL_LIGHT_GREEN}up to date${COL_NC}"
fi
# Logic: Don't update FTL when there is a core update available
# since the core update will run the installer which will itself
# re-install (i.e. update) FTL
if ${FTL_update} && ! ${core_update}; then
echo ""
echo -e " ${INFO} FTL out of date"
FTLdetect
echo ""
fi
if [[ ${INSTALL_WEB} == true ]]; then
if ! is_repo "${ADMIN_INTERFACE_DIR}" ; then
echo -e " ${COL_LIGHT_RED}Critical Error: Web Admin repo is missing from system!"
echo -e " Please re-run install script from https://github.com/pi-hole/pi-hole${COL_NC}"
exit 1;
fi
if GitCheckUpdateAvail "${ADMIN_INTERFACE_DIR}" ; then
web_update=true
echo -e " ${INFO} Web Interface:\t${COL_YELLOW}update available${COL_NC}"
else
web_update=false
echo -e " ${INFO} Web Interface:\t${COL_LIGHT_GREEN}up to date${COL_NC}"
fi
# Logic
# 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 ! ${core_update} && ! ${web_update} ; then
if ! ${FTL_update} ; then
echo ""
echo -e " ${TICK} Everything is up to date!"
exit 0
fi
elif ! ${core_update} && ${web_update} ; then
echo ""
echo -e " ${INFO} Pi-hole Web Admin files out of date"
getGitFiles "${ADMIN_INTERFACE_DIR}" "${ADMIN_INTERFACE_GIT_URL}"
elif ${core_update} && ! ${web_update} ; then
echo ""
echo -e " ${INFO} Pi-hole core files out of date"
getGitFiles "${PI_HOLE_FILES_DIR}" "${PI_HOLE_GIT_URL}"
${PI_HOLE_FILES_DIR}/automated\ install/basic-install.sh --reconfigure --unattended || echo -e " ${COL_LIGHT_RED}Unable to complete update, contact Pi-hole${COL_NC}" && exit 1
elif ${core_update} && ${web_update} ; then
echo ""
echo -e " ${INFO} Updating Pi-hole core and web admin files"
getGitFiles "${PI_HOLE_FILES_DIR}" "${PI_HOLE_GIT_URL}"
${PI_HOLE_FILES_DIR}/automated\ install/basic-install.sh --unattended || echo -e " ${COL_LIGHT_RED}Unable to complete update, contact Pi-hole${COL_NC}" && exit 1
else
echo -e " ${COL_LIGHT_RED}Update script has malfunctioned, fallthrough reached. Please contact support${COL_NC}"
exit 1
fi
else # Web Admin not installed, so only verify if core is up to date
if ! ${core_update}; then
if ! ${FTL_update} ; then
echo ""
echo -e " ${INFO} Everything is up to date!"
exit 0
fi
else
echo ""
echo -e " ${INFO} Pi-hole core files out of date"
getGitFiles "${PI_HOLE_FILES_DIR}" "${PI_HOLE_GIT_URL}"
${PI_HOLE_FILES_DIR}/automated\ install/basic-install.sh --reconfigure --unattended || echo -e " ${COL_LIGHT_RED}Unable to complete update, contact Pi-hole${COL_NC}" && exit 1
fi
fi
if [[ "${web_update}" == true ]]; then
web_version_current="$(/usr/local/bin/pihole version --admin --current)"
echo ""
echo -e " ${INFO} Web Admin version is now at ${web_version_current/* v/v}"
echo -e " ${INFO} If you had made any changes in '/var/www/html/admin/', they have been stashed using 'git stash'"
fi
if [[ "${core_update}" == true ]]; then
pihole_version_current="$(/usr/local/bin/pihole version --pihole --current)"
echo ""
echo -e " ${INFO} Pi-hole version is now at ${pihole_version_current/* v/v}"
echo -e " ${INFO} If you had made any changes in '/etc/.pihole/', they have been stashed using 'git stash'"
fi
if [[ ${FTL_update} == true ]]; then
FTL_version_current="$(/usr/bin/pihole-FTL tag)"
echo ""
echo -e " ${INFO} FTL version is now at ${FTL_version_current/* v/v}"
start_service pihole-FTL
enable_service pihole-FTL
fi
echo ""
exit 0
}
main