Shell script to update wiki-js to the latest version including a backup.

robo.yml.dist

# install requirements with composer. see https://getcomposer.org
# composer global require consolidation/robo
# composer global require symfony/yaml
# rename to robo.yml

database:
  host: '127.0.0.1'
  port: '3306'
  user: '<db-user>'
  password: '<db-password>'
  database: '<db-name>'
backup:
  keep: 3 # number of backups to keep, set to 0 to keep infinite backups

RoboFile.php

<?php
/**
 *
 * Copyright 2020 Dirk Benkert <mail@dirk-benkert.de>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 * and associated documentation files (the "Software"), to deal in the Software without restriction, 
 * including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions 
 * of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
 * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 
 * IN THE SOFTWARE.
 */
class RoboFile extends \Robo\Tasks
{

    /**
     * backup local database
     *
     * @param string $sqlFileName
     * @throws \Robo\Exception\TaskException
     */

    public function backupDatabase($sqlFileName = '')
    {
        $host = \Robo\Robo::Config()->get('database.host');
        $port = \Robo\Robo::Config()->get('database.port');
        $user = \Robo\Robo::Config()->get('database.user');
        $password = \Robo\Robo::Config()->get('database.password');
        $database = \Robo\Robo::Config()->get('database.database');
        $keep = \Robo\Robo::Config()->get('backup.keep');

        // create backup folder if it does not exist.
        $this->taskExecStack()
            ->stopOnFail(false)
            ->exec('mkdir backup')
            ->run();

        $now = date('Ymd-His');
        if ($sqlFileName === '') {
            $sqlFileName = $database . '-' . $now . '.sql';
        }

        // backup local database
        $this->taskExecStack()
            ->exec('cd backup')
            ->exec('mysqldump -h ' . $host . ' --port=' . $port . '  -u' . $user . ' -p' . $password . ' ' . $database . ' > ' . $sqlFileName)
            ->run();

        $backupfiles = glob(__DIR__ . '/backup/*.sql');
        rsort($backupfiles);

        if(count($backupfiles) > $keep && $keep > 0) {
            $deleteFiles = array_slice($backupfiles, $keep);
            $this->yell('removing ' . count($deleteFiles) . ' old backups');
            foreach ($deleteFiles as $file) {
                $this->taskExecStack()->exec('rm ' . $file)
                ->run();
            }
        }
    }

    /**
     * import backup of database
     *
     * @throws \Robo\Exception\TaskException
     */

    public function backupRestore($backupFilename = null)
    {
        $host = \Robo\Robo::Config()->get('database.host');
        $port = \Robo\Robo::Config()->get('database.port');
        $user = \Robo\Robo::Config()->get('database.user');
        $password = \Robo\Robo::Config()->get('database.password');
        $database = \Robo\Robo::Config()->get('database.database');
        
        if (null === $backupFilename) {
        	$this->yell("provide a backup file to restore ", 40, 'red');
          return;
        }
        
        // delete integration database
        $mysqlCommand = 'mysql -h ' . $host . ' --port=' . $port . ' -u' . $user . ' -p' . $password . " -e 'DROP DATABASE `" . $database . "`;'";
        $this->taskExecStack()
            ->exec($mysqlCommand)
            ->run();

        // create integration database
        $mysqlCommand = 'mysql -h ' . $host . ' --port=' . $port . ' -u' . $user . ' -p' . $password . " -e 'CREATE DATABASE `" . $database . "`;'";
        $this->taskExecStack()
            ->exec($mysqlCommand)
            ->run();

        // import backup
        $stack = $this->taskExecStack();
        // if the filepath provided is relative it can be accessed from devops/base and we do not need to cd to the backup directory.
        if (!file_exists($backupFilename)) {
            // if the file does not exist try to locate it in the backup folder.
            $stack->exec('cd backup');
        }
        $stack->exec( 'mysql -h ' . $host . ' --port=' . $port . ' -u' . $user . ' -p' . $password . ' ' . $database . ' < ' . $backupFilename)
            ->run();
        $this->yell('imported ' . $backupFilename);
    }
}

update-wiki-js.sh

#!/bin/bash
#
# Copyright 2020 Dirk Benkert <mail@dirk-benkert.de>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
# and associated documentation files (the "Software"), to deal in the Software without restriction, 
# including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
# and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all copies or substantial portions 
# of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
# TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 
# IN THE SOFTWARE.

## directory structure
# WORKDIR is where you put devops tools
#     $WORKDIR/tmp/ is used for backup files
#     $WORKDIR/backup/ is used for database backups
# WEBROOT is where you put your wiki. basically the parent of your wiki/ folder.

## usage
# bash update-wiki-js.sh to update your wiki.js to the latest version
# bash update-wiki-js.sh -f to force an update even if no new version is used
# bash update-wiki-js.sh --rollback to roll back to the previous version
#
# database backups run with robo from robo.li as i manually use this for backups of the database as well.


## CONFIGURATION
WORKDIR=~/devops/wiki
WEBROOT=~/webroot
CURRENT_VERSION=$(sed -nE 's/^\s*"version": "(.*?)",$/\1/p' $WEBROOT/wiki/package.json)
LATEST_VERSION=$(curl -s https://api.github.com/repos/Requarks/wiki/releases/latest | grep tag_name | head -n 1 | cut -d '"' -f 4)

FORCE=false
while test -n "$1" && $cont_optparse true; do
    case $1 in
        -f | --force) # Proceed even if more than AUTOMATIC_REMOVAL_THRESHOLD backups are to be removed
            FORCE=true; shift;;
        *)
            cont_optparse=false;;
    esac
done

if [[ $1 == "--rollback" ]]
then
 if [[ -d $WORKDIR/tmp/wiki ]]
 then
  echo "Stopping Wiki.js ..."
  sudo systemctl stop wiki.service
  echo "Rolling back files ..."
  rm -rf $WEBROOT/wiki/* && cp -r $WORKDIR/tmp/wiki/* $WEBROOT/wiki
  echo "Rollback complete, restoring database ..."
  LATEST_BACKUP=$(ls $WORKDIR/backup | sort --reverse | grep -P '\d{8}-\d{6}.sql$' | head -1)
  robo --load-from ~/devops/wiki/RoboFile.php backup:restore $WORKDIR/backup/$LATEST_BACKUP
  echo "restored $LATEST_BACKUP".
  echo "Starting Wiki.js. This may take a few seconds ..."
  sudo systemctl start wiki.service
  exit 0
 else
  echo "No Backup found :("
  exit 1
 fi
fi

if [[ $FORCE == true || $CURRENT_VERSION != $LATEST_VERSION ]]
then
  # fetch and download latest release
  WIKI_URL=https://github.com/Requarks/wiki/releases/download/$LATEST_VERSION/wiki-js.tar.gz
  echo "Downloading $WIKI_URL"
  curl --progress-bar -LO $WIKI_URL

  # remove old backup before updating
  if [[ -d $WORKDIR/tmp/wiki ]]
  then
    rm -rf $WORKDIR/tmp/wiki
	 fi

  # stop the service, assuming you use systemd
  sudo systemctl stop wiki.service

  # copy config
  cp $WEBROOT/wiki/config.yml $WORKDIR/tmp/config.yml.bak

  # backup database
  robo --load-from ~/devops/wiki/RoboFile.php backup:database

  # backup old version in tmp/wiki
  mv $WEBROOT/wiki $WORKDIR/tmp

  #make dir wiki
  mkdir $WEBROOT/wiki

  # unpack to ./wiki
  tar xzf wiki-js.tar.gz -C $WEBROOT/wiki

  # copy config back
  cp $WORKDIR/tmp/config.yml.bak $WEBROOT/wiki/config.yml

  # start service again
  sudo systemctl start wiki.service

  # cleanup
  rm $WORKDIR/wiki-js.tar.gz
  echo "Updated wiki.js to $LATEST_VERSION."
else
  echo "Wiki.js $CURRENT_VERSION is already up-to-date, no update needed."
fi