X-Git-Url: http://git.steven-mcdonald.id.au/?p=aids.git;a=blobdiff_plain;f=lib%2Faids.rb;h=ab3e4a50b2e59dbbb6df7a0e786c72a457924a7a;hp=c2a7e66c020df30a629c59db8c9609c22fcbe1bd;hb=e0f5c5f1767ed0e441e25204ad237f338f05f001;hpb=16da2ea2a6c6d9b70ea3b3424d80b0f8a68b6cec

diff --git a/lib/aids.rb b/lib/aids.rb
index c2a7e66..ab3e4a5 100644
--- a/lib/aids.rb
+++ b/lib/aids.rb
@@ -1,33 +1,45 @@
+# Copyright (C) 2012  Steven McDonald <steven@steven-mcdonald.id.au>
+#
+# This program is free software. It comes without any warranty, to the
+# extent permitted by applicable law. You can redistribute it and/or
+# modify it under the terms of the Do What The Fuck You Want To Public
+# License, Version 2, as published by Sam Hocevar. See the file COPYING
+# in the root of this program's source distribution for details, or:
+#
+#   http://sam.zoy.org/wtfpl/COPYING
+
 module AIDS
-	RUNLEVEL_SINGLE          = 'S'
-	RUNLEVEL_MULTI_TO_SINGLE = '1'
-	RUNLEVEL_MULTI           = '2'
-	RUNLEVEL_HALT            = '0'
-	RUNLEVEL_REBOOT          = '6'
+	RUNLEVEL_SINGLE          = :'S'
+	RUNLEVEL_MULTI_TO_SINGLE = :'1'
+	RUNLEVEL_MULTI           = :'2'
+	RUNLEVEL_MULTI_ALL       = [:'2',:'3',:'4',:'5']
+	RUNLEVEL_HALT            = :'0'
+	RUNLEVEL_REBOOT          = :'6'
+	RUNLEVEL_ALL             = [:'0',:'1',:'2',:'3',:'4',:'5',:'6',:'S']
 
 	class Service
 		attr_reader :name
 
 		def initialize(name)
 			if name.nil? or name.empty? or not name.is_a?(String)
-				raise Exception.new("Service name must be a non-empty string, got #{name.inspect}.")
+				raise AIDS::Infection.new("Service name must be a non-empty string, got #{name.inspect}.")
 			end
 			name = $1 if name =~ %r{^/etc/init\.d/(.+)$}
-			if name =~ /[^[:alnum:]\-.]/
-				raise Exception.new("Invalid init script name: #{name}.")
+			if name =~ /[^[:alnum:]\-._]/
+				raise AIDS::Infection.new("Invalid init script name: #{name}.")
 			end
 			unless File.exist?("/etc/init.d/#{name}")
-				raise Exception.new("Unknown service: #{name}.")
+				raise AIDS::Infection.new("Unknown service: #{name}.")
 			end
 			@name = name
 		end
 
 		def enable!
-			start_on_runlevel!(RUNLEVEL_MULTI)
+			start_on_runlevels!(RUNLEVEL_MULTI_ALL)
 		end
 
 		def disable!
-			stop_on_runlevel!(RUNLEVEL_MULTI)
+			stop_on_runlevels!(RUNLEVEL_MULTI_ALL)
 		end
 
 		def enabled?
@@ -35,13 +47,17 @@ module AIDS
 		end
 
 		def status
-			if started_on_runlevel?(RUNLEVEL_MULTI)
-				:enabled
-			elsif stopped_on_runlevel?(RUNLEVEL_MULTI)
-				:disabled
-			else
-				:unknown
+			status = {}
+			RUNLEVEL_ALL.each do |r|
+				if started_on_runlevel?(r)
+					status[r] = :start
+				elsif stopped_on_runlevel?(r)
+					status[r] = :stop
+				else
+					status[r] = :none
+				end
 			end
+			status
 		end
 
 		private
@@ -56,16 +72,20 @@ module AIDS
 			not Dir.glob("/etc/rc#{runlevel}.d/K[0-9][0-9]#{@name}").empty?
 		end
 
-		def start_on_runlevel!(runlevel)
-			AIDS.validate_runlevel(runlevel)
-			return true if started_on_runlevel?(runlevel)
-			updatercd(:enable, runlevel)
+		def start_on_runlevels!(runlevels)
+			[runlevels].flatten.each do |r|
+				AIDS.validate_runlevel(r)
+				next if started_on_runlevel?(r)
+				updatercd(:enable, r)
+			end
 		end
 
-		def stop_on_runlevel!(runlevel)
-			AIDS.validate_runlevel(runlevel)
-			return true if stopped_on_runlevel?(runlevel)
-			updatercd(:disable, runlevel)
+		def stop_on_runlevels!(runlevels)
+			[runlevels].flatten.each do |r|
+				AIDS.validate_runlevel(r)
+				next if stopped_on_runlevel?(r)
+				updatercd(:disable, r)
+			end
 		end
 
 		def set_default_runlevels!
@@ -75,13 +95,13 @@ module AIDS
 
 		def updatercd(action, runlevel=nil)
 			unless [:enable, :disable, :remove, :defaults].include?(action)
-				raise Exception.new("Invalid action for updatercd: #{action}.")
+				raise AIDS::Infection.new("Invalid action for updatercd: #{action}.")
 			end
 			AIDS.validate_runlevel(runlevel) if runlevel
 			# update-rc.d will baulk at being told to do anything with
 			# these runlevels.
-			if ['0', '1', '6'].include?(runlevel.to_s)
-				raise Exception.new("Unable to comply: update-rc.d is balls.")
+			if [:'0',:'1',:'6'].include?(runlevel)
+				raise AIDS::Infection.new("Unable to comply: update-rc.d is balls.")
 			end
 			pid = Process.fork do
 				$stdout.close
@@ -95,11 +115,14 @@ module AIDS
 			end
 			Process.wait(pid)
 			if (rc = $?.exitstatus) != 0
-				raise Exception.new("update-rc.d returned #{rc}")
+				raise AIDS::Infection.new("update-rc.d returned #{rc}")
 			end
 		end
 	end
 
+	class Infection < Exception
+	end
+
 	def self.get_all_services
 		Dir.glob("/etc/init.d/*").map do |f|
 			next unless File.executable?(f)
@@ -107,9 +130,11 @@ module AIDS
 		end.compact
 	end
 
+	private
+
 	def self.validate_runlevel(runlevel)
-		unless ['0', '1', '2', '3', '4', '5', '6', 'S'].include?(runlevel.to_s)
-			raise Exception.new("Invalid runlevel: #{runlevel}.")
+		unless RUNLEVEL_ALL.include?(runlevel)
+			raise AIDS::Infection.new("Invalid runlevel: #{runlevel}.")
 		end
 	end
 end