Wiki installation on Mac OS X

To install MediaWiki, simply follow the instructions from MediaWiki Installation for:

• Mac OS X 10.4.8;
• PHP 5.0.2-3;
• MySQL 5.0.27;
• MediaWiki 1.8.2.

To install Apache

Apache is standard installed on Mac OS X (10.0.4 has Apache 1.3.33 installed).

To install PHP

1. Download PHP from Marc Liyanage and:
2. Install according to instructions;
   • Installs in /usr/local/php5;
   • Creates appropriate symbolic link:
     • /etc/httpd/users/+entropy-php.conf -> /usr/local/php5/entropy-php.conf.

To install MySQL

1. Download MySQL from official MySQL site;
2. Follow instructions on Installing MySQL on Mac OS X;

To install MediaWiki

1. Download MediaWiki from official site;
2. Follow installation instructions and comprehensive MediaWiki Installation Guide
3. Also read Upgrading to MediaWiki 1.8.

To duplicate a Wiki instance

• Source: server running MediaWiki 1.6.2 on aardrock.com (running some Linux flavour).
• Target: laptop running a clean install of MediaWiki 1.8.2 on flair.beach.aardrock.com:~Martien/Sites/wiki/ (my PowerBook G4 running Mac OS X 10.4.8).
• Don't want to interfere with the existing Wiki database, so we'll set up a separate database using the same MySQL instance.
• Different database name.
• Different database table prefix.
• Setting database grants correctly.
• Different site name.
• Different accounts and passwords.
• Eliminating index.php from the URL.

1. On the source machine , dump the database into an SQL file:
   • mysqldump -u root -p wikidb >~/cheetah_wiki.sql
2. Switch to the target machine and securely copy all relevant files:
   • SQL dtabase dump;
   • Make a backup copy of your current LocalSettings.php;
   • LocalSettings.php, your MediaWiki identity; avoid overwriting your current version and use a different filename for LocalSettings.php;
   • Any extensions; verify that your extensions will also run on the target version of MediaWiki;
   • Any modified skins;
   • All your uploaded images;

% cd ~/Sites/wiki
% cp LocalSettings.php LocalSettings.php-PebbleBeach
% scp martien@aardrock.com:~/cheetah_wiki.sql .
% scp martien@aardrock.com:/srv/www/htdocs/mediawiki/LocalSettings.php LocalSettings.php-AardRock
% scp martien@aardrock.com:/srv/www/htdocs/mediawiki/extensions/'*' .
% scp martien@aardrock.com:/srv/www/htdocs/mediawiki/skins/Aardrock.php .
% scp -r martien@aardrock.com:/srv/www/htdocs/mediawiki/skins/aardrock .
% scp -r martien@aardrock.com:/srv/www/htdocs/mediawiki/images .
% cd .. && mv wiki w

1. In LocalSettings.php-AardRock:

Change Variable:	From:	To:
$wgSitename	"AardRock"	"PebbleBeach"
$wgScriptPath	""	"/w"
$wgArticlePath	"$wgScriptPath/$1"	"/wiki/$1"
$wgDBname	"wikidb"	"aap"
$wgDBprefix	"cheetah_"	"Flair"
$wgDBpassword	"DB password on source system"	"DB password on target system"

1. Add the following lines to the end of LocalSettings.php-AardRock NOTA BENE accesscontrolSettings do not work in MediaWiki 1.8.2:

require_once("extensions/accesscontrolSettings.php");
include("extensions/accesscontrol.php");

1. Set the database grants for the new database appropriately

% mysql -u root -p
Enter password: ********
mysql> grant SELECT, INSERT, UPDATE, DELETE, CREATE TEMPORARY TABLES on aap.* to 'wikiuser'@'localhost';

You can now easily switch between the two!

To switch to the Pebble Beach Wiki

cp LocalSettings.php-PebbleBeach LocalSettings.php

Test it and browse to http://flair.beach.aardrock.com/wiki/ to find that Wiki's content.

To switch to the AardRock Wiki

cp LocalSettings.php-AardRock LocalSettings.php

Test it and browse to http://flair.beach.aardrock.com/wiki/ to find that Wiki's content.

Seems like the beginning of a recipe for setting up a Wiki farm…