Added task for wiki autogeneration.

tasks/wiki.rake

@@ -0,0 +1,41 @@
+require 'google/api_client'
+
+CACHE_PREFIX =
+  "http://www.gmodules.com/gadgets/proxy/container=default&debug=0&nocache=0/"
+
+namespace :wiki do
+  desc 'Autogenerate wiki pages'
+  task :generate do
+    output = <<-WIKI
+#summary The list of supported APIs
+
+The Google API Client for Ruby is a small flexible client library for accessing
+the following Google APIs.
+
+WIKI
+    preferred_apis = {}
+    client = Google::APIClient.new
+    for api in client.discovered_apis
+      if !preferred_apis.has_key?(api.name)
+        preferred_apis[api.name] = api
+      elsif api.preferred
+        preferred_apis[api.name] = api
+      end
+    end
+    for api_name, api in preferred_apis
+      output += (
+        "||#{CACHE_PREFIX}#{api['icons']['x16']}||" +
+        "[#{api.documentation} #{api.title}]||" +
+        "#{api.description}||\n"
+      )
+    end
+    wiki_path = File.expand_path(
+      File.join(File.dirname(__FILE__), '../wiki/'))
+    Dir.mkdir(wiki_path) if !File.exist?(wiki_path)
+    File.open(File.join(wiki_path, 'SupportedAPIs.wiki'), 'w') do |file|
+      file.write(output)
+    end
+  end
+end
+
+# task 'clobber' => ['wiki:clobber_wiki']