support -l to export for specifying log root

lib/foreman/cli.rb

@@ -26,6 +26,7 @@ class Foreman::CLI < Thor
   desc "export FORMAT LOCATION", "Export the application to another process management format"
 
   method_option :app,         :type => :string, :aliases => "-a"
+  method_option :log,         :type => :string, :aliases => "-l"
   method_option :user,        :type => :string, :aliases => "-u"
   method_option :concurrency, :type => :string, :aliases => "-c",
     :banner => '"alpha=5,bar=3"'
@@ -41,6 +42,7 @@ class Foreman::CLI < Thor
     formatter.new(engine).export(location,
       :name        => options[:app],
       :user        => options[:user],
+      :log         => options[:log],
       :concurrency => options[:concurrency]
     )
   rescue Foreman::Export::Exception => ex

lib/foreman/export/inittab.rb

@@ -5,7 +5,9 @@ class Foreman::Export::Inittab < Foreman::Export::Base
   def export(fname=nil, options={})
     app = options[:app] || File.basename(engine.directory)
     user = options[:user] || app
-    log_dir = "/var/log/#{app}"
+    log_root = options[:log] || "/var/log"
+
+    log_dir = "#{log_root}/#{app}"
 
     concurrency = parse_concurrency(options[:concurrency])
 

lib/foreman/export/upstart.rb

@@ -10,6 +10,7 @@ class Foreman::Export::Upstart < Foreman::Export::Base
 
     app = options[:app] || File.basename(engine.directory)
     user = options[:user] || app
+    log_root = options[:log] || "/var/log"
 
     Dir["#{location}/#{app}*.conf"].each do |file|
       say "cleaning up: #{file}"