Utility: Linux Admining

[Ornedan]

My server wrapper and backup scripts. For this thread, I think the interesting bit is the backup script, since it's parametrized by game name.

Both scripts assume the game directory is ~/dominions3

The server wrapper passes all parameters directly to dom3. It only deals with the last parameter, which is assumed to be the name of the game. The wrapper is mainly for having a bunch of default parameters that I want to have all the time.

The backup script writes the backups to ~/dominions/backups. It reads the scores.html file to determine current turn, so the game needs to be run with --scoredump on.


dom3serv:

#! /usr/bin/env python

from os import environ, execvp, mkdir
from os.path import exists, join
from sys import argv


# Common options
common = ["--scoredump",
          "--tcpserver",
          "--quickhost",
          "--textonly"
          ]


# Newgame standard options
newgame = ["--masterpass", "*****",
           "--renaming",
           "--noscoregraphs"]


# Start game
HOME = environ["HOME"]
GAME = argv[-1]
EXECS = ["--preexec", "dom3backup %s" % (GAME,)
#        ,"--postexec", "command %s" % (GAME,)
         ]

common = common + EXECS

if exists(join(HOME,"dominions3","savedgames",GAME,"ftherlnd")):
    print "Resuming game %s" % (GAME,)
    execvp("dom3", ["dom3"] + common + argv[1:])
else:
    print "Starting new game %s" % (GAME,)
    if not exists(join(HOME,"dominions3","savedgames",GAME)):
        mkdir(join(HOME,"dominions3","savedgames",GAME))
    execvp("dom3", ["dom3"] + common + newgame + argv[1:])

dom3backup:

#! /bin/bash

game=$1
savedir="$HOME/dominions3/savedgames"
gamedir="$savedir/$game"
backupdir="$HOME/dominions3/backups/$game"

fatherland="$gamedir/ftherlnd"

if [ ! -d $gamedir ]; then
    echo "Can't backup non-existent game!"
    exit
fi

if [ -f $fatherland ]; then
    if [ -f $gamedir/scores.html ]; then
        turn=`grep -Eo -m 1 "Dominions 3 Scores, $game turn ([[:digit:]]+)" $gamedir/scores.html | grep -Eo "[[:digit:]]+$"`
    else
        turn=1
    fi
    backupfile="$backupdir/turn_$turn.tar.bz2"
else
    backupfile="$backupdir/pregame.tar.bz2"
fi


# Make sure backup dir exists

if [ ! -d $backupdir ]; then
    mkdir -p $backupdir
fi

# Create backupfile for this turn

echo "Creating backup file $backupfile"
tar cjf $backupfile -C $savedir $game > /dev/null

Edit:
Regarding that unattendedness stuff, I run my server processes each in their own window under GNU screen, so they'll print their log to a terminal, but I don't have to have a local/remote login open all the time. But that's more a part of the fact that my setup currently requires me to start each game manually.

[Lihaässä]

Thanks G

[Gandalf Parker]

Originally Posted by Ornedan

My server wrapper and backup scripts. For this thread, I think the interesting bit is the backup script, since it's parametrized by game name.

Excellent scripts.
I will definetly copy them and use them as examples as I work on consolidating mine. My stuff grew over time and I have a script to start each game type, and a script to restart for each game type, and one to kill/delete for each game type, and one to search/display dead games which the players didnt bother to turn off. Not to mention the many version 1, version 2, test this, test that scripts.

I really need to clean it all up and create larger scripts with options, I especailly like how you broke the common options from the newgame options for start and restart.

[Gandalf Parker]

For backups I like to end it with a mime emailing to an account on another system. Backup on the same device is handy, on another device (drive, tape, etc) is handier, and on a completely different system is way handier.

[Lihaässä]

First game finished using server hosting.. man that was simple! A new question occurred however while planning a new game. According to this list: http://www.dom3minions.com/docs/CommandLine.txt, its not possible to assign more than 1 victory point / province. I'm planning to set up game with one 3-vp and three 2-vp provinces in addition to 10 regular 1-vp provinces.

Any ideas is this possible? How?

Thanks already!

[llamabeast]

I think you have to start the game using the GUI, then run it as a command line game once it's started. The detailed VP settings are curiously absent from the command line options.

[Lihaässä]

Thanks llamabeast - I think it's not possible to use GUI in our case. Sounds really mysterious why such commands are not available. Any other options?

Apparently me and Gandalf replied at the same time - I'll look into his solution. Thanks!

[Lihaässä]

Im trying to make a working, simple backup option for a hosting script. How do the commands --postexec and --preexec commands work? At the moment my script looks like this? It works ok without the --postexec command. At the moment the game refuses to start up.

           
#!/bin/bash
# Tällä käynnistellään dqotonen domi hostaukset
# jee


GAME="rivers"
MAP="Rivers.map"
ERA=3
MOD="CBcomplete_1.6.dm"
BUP=["rsync -a /home/dom/dominions3/savedgames/* /backup/"]
AID="57"
START=5

PORT="2222"
DOM="/home/dom/dominions3/dom3"

$DOM -S -T --port $PORT -g $GAME --era $ERA --mapfile $MAP -q --indepstr 9 --uploadmaxp $START --diffai $AID --enablemod $MOD --postexec $BUP

[Gandalf Parker]

Only time for quick answer. Ask if confusing.

For me, easiest is appending a few commands to the end of the games .map file
http://www.dom3minions.com/docs/map_qref.txt

If someone elses map, dupe to new name. It will use the same image file so not much work involved.

--
per peer-pressure preoccupation
My maps, mods, and mullings can be found at
http://www.Dom3Minions.com

[vfb]

It's probably the [] characters in $BUP, if it's calling system() to run the postexec command then it won't work, because system() does a "/bin/sh -c":

$ /bin/sh -c ["/bin/ls -a"]
/bin/sh: [/bin/ls: No such file or directory

I put my postexec commands in a script and that worked fine:

$DOM3EXE $DOM3GAME  \
        --port $PORT -ST${DEBUG} ${SCOREOPT} ${RENAMEOPT} \
        --era ${ERA} \
        --uploadmaxp ${PLAYERS} --noclientstart \
        --requiredvp 0 --totalvp 0  \
        --mapfile ${MAP} \
        --enablemod ${MOD} \
        -q \
        --masterpass ${MASTERPASS} \
        --preexec ${DOM3DIR}/prehost.sh --postexec ${DOM3DIR}/posthost.sh \
        >>$DOM3LOGDIR/$DOM3GAME.log 2>>$DOM3LOGDIR/$GAME.err

Also, do you need -g? The help for that shows:

-g  --host          Generate new turn and exit