Makes a list of allowed WordPress configurations. Plan to use this to make a vagrant box that has all of them, for testing purposes.

wp-combos.rb

#!/usr/bin/ruby

multisitism = [
	:single_site,
	:multisite_subdirs,
	:multisite_subdomains
]

permalinks = [
	:default_permalinks,
	:pathinfo_permalinks,
	:mod_rewrite_permalinks
]

home_location = [
	:home_in_root,
	:home_in_subdir
]

wp_location = [
	:wp_in_home,
	:wp_in_subdir,
	:wp_in_subdir_siteurl_equals_home
]

def is_forbidden combo
	forbidden = false
	# Subdomain multisite installs require the 'home' to be in the root
	if combo.include?(:multisite_subdomains) && combo.include?(:home_in_subdir)
		forbidden = true
	# Multisite installs require mod_rewrite permalinks
	elsif !combo.include?(:single_site) && !combo.include?(:mod_rewrite_permalinks)
		forbidden = true
	# WP in subdir with siteurl == home is multisite-specific
	elsif combo.include?(:single_site) && combo.include?(:wp_in_subdir_siteurl_equals_home)
		forbidden = true
	end
	forbidden
end

combos = []

for m in multisitism
	for p in permalinks
		for h in home_location
			for w in wp_location
				combo = [ m, p, h, w ]
				combos << combo unless is_forbidden combo
			end
		end
	end
end

puts combos.inspect