mirror of
https://github.com/pi-hole/pi-hole
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e3c1fcd2c6
Compare local and remote hashes. Update is available if current remote hash is different from current local hash since we assume that local should never be newer than remote for user
220 lines
6.6 KiB
Bash
Executable File
220 lines
6.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Pi-hole: A black hole for Internet advertisements
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# (c) 2015, 2016 by Jacob Salmela
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# Network-wide ad blocking via your Raspberry Pi
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# http://pi-hole.net
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# Check Pi-hole core and admin pages versions and determine what
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# upgrade (if any) is required. Automatically updates and reinstalls
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# application if update is detected.
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#
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# Pi-hole is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# (at your option) any later version.
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# Variables
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readonly ADMIN_INTERFACE_GIT_URL="https://github.com/pi-hole/AdminLTE.git"
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readonly ADMIN_INTERFACE_DIR="/var/www/html/admin"
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readonly PI_HOLE_GIT_URL="https://github.com/pi-hole/pi-hole.git"
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readonly PI_HOLE_FILES_DIR="/etc/.pihole"
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is_repo() {
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# Use git to check if directory is currently under VCS, return the value
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local directory="${1}"
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local curdir
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local rc
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curdir="${PWD}"
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cd "${directory}" &> /dev/null || return 1
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git status --short &> /dev/null
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rc=$?
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cd "${curdir}" &> /dev/null || return 1
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return "${rc}"
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}
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prep_repo() {
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# Prepare directory for local repository building
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local directory="${1}"
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rm -rf "${directory}" &> /dev/null
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return
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}
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make_repo() {
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# Remove the non-repod interface and clone the interface
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local remoteRepo="${2}"
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local directory="${1}"
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(prep_repo "${directory}" && git clone -q --depth 1 "${remoteRepo}" "${directory}")
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return
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}
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update_repo() {
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local directory="${1}"
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local curdir
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curdir="${PWD}"
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cd "${directory}" &> /dev/null || return 1
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# Pull the latest commits
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# Stash all files not tracked for later retrieval
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git stash --all --quiet
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# Force a clean working directory for cloning
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git clean --force -d
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# Fetch latest changes and apply
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git pull --quiet
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cd "${curdir}" &> /dev/null || return 1
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}
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getGitFiles() {
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# Setup git repos for directory and repository passed
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# as arguments 1 and 2
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local directory="${1}"
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local remoteRepo="${2}"
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echo ":::"
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echo "::: Checking for existing repository..."
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if is_repo "${directory}"; then
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echo -n "::: Updating repository in ${directory}..."
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update_repo "${directory}" || (echo "*** Error: Could not update local repository. Contact support."; exit 1)
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echo " done!"
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else
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echo -n "::: Cloning ${remoteRepo} into ${directory}..."
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make_repo "${directory}" "${remoteRepo}" || (echo "Unable to clone repository, please contact support"; exit 1)
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echo " done!"
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fi
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}
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GitCheckUpdateAvail() {
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local directory="${1}"
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curdir=$PWD;
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cd "${directory}"
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# Fetch latest changes in this repo
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git fetch --quiet origin
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# @ alone is a shortcut for HEAD. Older versions of git
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# need @{0}
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LOCAL="$(git rev-parse @{0})"
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# The suffix @{upstream} to a branchname
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# (short form <branchname>@{u}) refers
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# to the branch that the branch specified
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# by branchname is set to build on top of#
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# (configured with branch.<name>.remote and
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# branch.<name>.merge). A missing branchname
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# defaults to the current one.
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REMOTE="$(git rev-parse @{upstream})"
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# Change back to original directory
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cd "${curdir}"
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if [[ ${#LOCAL} == 0 ]]; then
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echo "::: Error: Local revision could not be optained, ask Pi-hole support."
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echo "::: Additional debugging output:"
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git status
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exit
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fi
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if [[ ${#REMOTE} == 0 ]]; then
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echo "::: Error: Remote revision could not be optained, ask Pi-hole support."
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echo "::: Additional debugging output:"
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git status
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exit
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fi
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if [[ "${LOCAL}" != "${REMOTE}" ]]; then
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# Local branch is behind remote branch -> Update
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return 0
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else
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# Local branch is up-to-date or in a situation
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# where this updater cannot be used (like on a
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# branch that exists only locally)
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return 1
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fi
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}
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main() {
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local pihole_version_current
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local web_version_current
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#This is unlikely
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if ! is_repo "${PI_HOLE_FILES_DIR}" || ! is_repo "${ADMIN_INTERFACE_DIR}" ; then
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echo "::: Critical Error: One or more Pi-Hole repos are missing from system!"
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echo "::: Please re-run install script from https://github.com/pi-hole/pi-hole"
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exit 1;
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fi
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echo "::: Checking for updates..."
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if GitCheckUpdateAvail "${PI_HOLE_FILES_DIR}" ; then
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core_update=true
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echo "::: Pi-hole Core: update available"
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else
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core_update=false
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echo "::: Pi-hole Core: up to date"
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fi
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if GitCheckUpdateAvail "${ADMIN_INTERFACE_DIR}" ; then
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web_update=true
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echo "::: Web Interface: update available"
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else
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web_update=false
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echo "::: Web Interface: up to date"
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fi
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# Logic
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# If Core up to date AND web up to date:
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# Do nothing
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# If Core up to date AND web NOT up to date:
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# Pull web repo
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# If Core NOT up to date AND web up to date:
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# pull pihole repo, run install --unattended -- reconfigure
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# if Core NOT up to date AND web NOT up to date:
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# pull pihole repo run install --unattended
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if ! ${core_update} && ! ${web_update} ; then
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echo ":::"
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echo "::: Everything is up to date!"
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exit 0
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elif ! ${core_update} && ${web_update} ; then
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echo ":::"
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echo "::: Pi-hole Web Admin files out of date"
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getGitFiles "${ADMIN_INTERFACE_DIR}" "${ADMIN_INTERFACE_GIT_URL}"
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elif ${core_update} && ! ${web_update} ; then
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echo ":::"
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echo "::: Pi-hole core files out of date"
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getGitFiles "${PI_HOLE_FILES_DIR}" "${PI_HOLE_GIT_URL}"
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/etc/.pihole/automated\ install/basic-install.sh --reconfigure --unattended || echo "Unable to complete update, contact Pi-hole" && exit 1
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elif ${core_update} && ${web_update} ; then
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echo ":::"
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echo "::: Updating Everything"
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getGitFiles "${PI_HOLE_FILES_DIR}" "${PI_HOLE_GIT_URL}"
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/etc/.pihole/automated\ install/basic-install.sh --unattended || echo "Unable to complete update, contact Pi-hole" && exit 1
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else
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echo "*** Update script has malfunctioned, fallthrough reached. Please contact support"
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exit 1
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fi
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if [[ "${web_update}" == true ]]; then
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web_version_current="$(/usr/local/bin/pihole version --admin --current)"
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echo ":::"
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echo "::: Web Admin version is now at ${web_version_current}"
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echo "::: If you had made any changes in '/var/www/html/admin/', they have been stashed using 'git stash'"
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fi
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if [[ "${core_update}" == true ]]; then
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pihole_version_current="$(/usr/local/bin/pihole version --pihole --current)"
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echo ":::"
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echo "::: Pi-hole version is now at ${pihole_version_current}"
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echo "::: If you had made any changes in '/etc/.pihole/', they have been stashed using 'git stash'"
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fi
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echo ""
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exit 0
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}
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main
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