source: scripts/usr/local/lib/7dtd/commands/updateengine.sh

#!/bin/bash

#   Copyright 2016 Christian 'Alloc' Illy
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.


# Downloads SteamCMD, downloads/updates the 7dtd engine

sdtdCommandUpdateengine() {
        local FORCED=no
        local CHECKONLY=no
        local SHOWINTERNAL=no
        
        local BRANCHNAME="$(getLocalBranch)"
        local BRANCHPASSWORD=""
        
        while test $# -gt 0; do
                case "$1" in
                        --check)
                                CHECKONLY=yes
                                ;;
                        --showinternal)
                                SHOWINTERNAL=yes
                                ;;
                        --experimental)
                                BRANCHNAME="latest_experimental"
                                ;;
                        --stable)
                                BRANCHNAME="public"
                                ;;
                        --branch)
                                if [ -z "$2" ]; then
                                        echo "Argument --branch not followed by a branch name. Aborting."
                                        return
                                fi
                                BRANCHNAME=$2
                                shift
                                ;;
                        --password)
                                if [ -z "$2" ]; then
                                        echo "Argument --password not followed by a branch password value. Aborting."
                                        return
                                fi
                                BRANCHPASSWORD=$2
                                shift
                                ;;
                        --force)
                                FORCED=yes
                                ;;
                esac
                shift
        done
        
        if [ ! -e $SDTD_BASE/steamcmd ]; then
                mkdir $SDTD_BASE/steamcmd
                cd /tmp
                wget http://media.steampowered.com/installer/steamcmd_linux.tar.gz
                tar -xvzf steamcmd_linux.tar.gz -C $SDTD_BASE/steamcmd
                cd $SDTD_BASE/steamcmd
                ./steamcmd.sh +quit
        fi
        
        updateRemoteEngineInfo

        if [ "$CHECKONLY" = "yes" ]; then
                local LOCAL=$(getLocalEngineVersion)
                local REMOTE=$(getRemoteBuildId $(getLocalBranch))
                local REMOTETIME=$(getRemoteBuildUpdateTime $(getLocalBranch))
                
                echo "Installed:"
                echo "  Build ID:     $(getLocalEngineVersion)"
                echo "  Installed on: $(getLocalEngineUpdateTime)"
                echo "  From branch:  $(getLocalBranch)"
                echo

                echo "Available branches:"
                printf "%-*s | %-*s | %-*s\n" 22 "Branch" 8 "Build ID" 19 "Build set on"
                printf -v line "%*s-+-%*s-+-%*s\n" 22 " " 8 " " 19 " "
                echo ${line// /-}
                for I in $(getBranchNames); do
                        if [[ $I != test* ]] || [ "$SHOWINTERNAL" = "yes" ]; then
                                local BUILD=$(getRemoteBuildId $I)
                                local CREATED=$(getRemoteBuildUpdateTime $I)
                                printf "%-*s | %*s | %2s\n" 22 "$I" 8 "$BUILD" "$CREATED"
                        fi
                done | sort -k 3 -n -r
                
                echo
                
                if [ "$REMOTE" = "?" ]; then
                        echo "Could not fetch remote build information"
                        return
                fi
                
                if [ $REMOTE -gt $LOCAL ]; then
                        echo "Newer engine version available on the currently installed branch (build id $REMOTE from $REMOTETIME)."
                else
                        local MAXREMOTE=0
                        local MAXREMOTEBRANCH=0
                        local MAXREMOTETIME=0
                        for I in $(getBranchNames); do
                                if [[ $I != test* ]] || [ "$SHOWINTERNAL" = "yes" ]; then
                                        local BUILD=$(getRemoteBuildId $I)
                                        local CREATED=$(getRemoteBuildUpdateTime $I)
                                        if [ $BUILD -gt $MAXREMOTE ]; then
                                                MAXREMOTE=$BUILD
                                                MAXREMOTETIME=$CREATED
                                                MAXREMOTEBRANCH=$I
                                        fi
                                fi
                        done
                        if [ $MAXREMOTE -gt $LOCAL ]; then
                                echo "Newer engine version available on the branch \"$MAXREMOTEBRANCH\" (build id $MAXREMOTE from $MAXREMOTETIME)."
                        else
                                echo "Engine on the latest build."
                        fi
                fi
                return
        fi

        for I in $(getInstanceList); do
                if [ $(isRunning $I) -eq 1 ]; then
                        echo "At least one instance is still running (\"$I\")."
                        echo "Before updating the engine please stop all instances!"
                        return
                fi
        done

        local LOCAL=$(getLocalEngineVersion)
        local REMOTE=$(getRemoteBuildId $BRANCHNAME)
        
        if [ "$REMOTE" = "?" ]; then
                echo "Could not fetch remote build information, assuming update to be available"
                REMOTE=30123456
        fi

        if [ "$FORCED" = "yes" -o $REMOTE -gt $LOCAL ]; then
                echo "A newer version of the engine is available."
                echo "Local build id:     $LOCAL (installed on $(getLocalEngineUpdateTime))"
                echo "Available build id: $REMOTE (from $(getRemoteBuildUpdateTime $BRANCHNAME))"
                echo

                while : ; do
                        local CONTINUE
                        read -p "Continue? (yn) " CONTINUE
                        case $CONTINUE in
                                y)
                                        echo "Updating..."
                                        break
                                        ;;
                                n)
                                        echo "Canceled"
                                        return
                                        ;;
                                *)
                                        echo "Wrong input"
                        esac
                done
                
                cd $SDTD_BASE/steamcmd
                local PASSWORDARG=
                if [ -n "$BRANCHPASSWORD" ]; then
                        PASSWORDARG=-betapassword $BRANCHPASSWORD
                fi
                #echo ./steamcmd.sh +force_install_dir $SDTD_BASE/engine +login anonymous +app_update 294420 -validate -beta $BRANCHNAME $PASSWORDARG +quit
                ./steamcmd.sh +force_install_dir $SDTD_BASE/engine +login anonymous +app_update 294420 -validate -beta $BRANCHNAME $PASSWORDARG +quit

                if [ -d /usr/local/lib/7dtd/server-fixes ]; then
                        cp /usr/local/lib/7dtd/server-fixes/* $SDTD_BASE/engine/ -R
                fi

                chown $SDTD_USER:$SDTD_GROUP -R $SDTD_BASE/engine
        else
                echo "Engine is already at the newest build on the selected branch \"$BRANCHNAME\" (local: $LOCAL, remote: $REMOTE)."
                echo "Run with the --force parameter to update/validate the engine files anyway."
                echo "Run with --experimental, --stable or --branch to switch to a different branch."
        fi
}

sdtdCommandUpdateengineHelp() {
        echo "Usage: $(basename $0) updateengine [--check [--showinternal]] [--experimental | --stable] [--branch BRANCHNAME [--password BRANCHPASSWORD]] [--force]"
        echo
        echo "Check for a newer version of engine (aka game) files of 7dtd. If there is a newer"
        echo "version they will be updated by this command."
        echo
        echo "If neither --stable, nor --experimental nor --branch is specified the server will"
        echo "updated to the latest build on the currently installed Steam branch of the game."
        echo
        echo "If --stable is specified the server will be switched to the"
        echo "default public stable Steam branch of the game."
        echo
        echo "If --experimental is specified the server will be switched to the"
        echo "latest_experimental Steam branch of the game."
        echo
        echo "If --branch SOMEBRANCH is specified the server will be switched to the"
        echo "given Steam branch of the game. Additionally if password is required to acess"
        echo "the branch this can be specified with the --password argument."
        echo "NOTE that --password is also required if you previously switched to a branch that"
        echo "requires a password and want to update to the latest build on that branch now."
        echo
        echo "If --force is specified you are asked if you want to redownload the engine"
        echo "even if there is no new version detected."
        echo
        echo "If --check is specified it will only output the current local and remote build ids"
        echo "and if an update is available."
        echo "TFP internal branches are only shown if --showinternal is also given."
}

sdtdCommandUpdateengineDescription() {
        echo "Update the 7dtd engine files"
}

sdtdCommandUpdateengineExpects() {
        if [ "$2" = "--password" ]; then
                echo ""
        elif [ "$2" = "--branch" ]; then
                updateRemoteEngineInfo
                getBranchNames
        else
                echo "--check --showinternal --experimental --branch --password --stable --force"
        fi
}