Check for a default site before disabling it.

[dkinzer]

The build fails on our centos63 platform because the default site is not enabled and the a2dissite command throws an error when it does not find it. This commit corrects this issue by making sure this command is only invoked when a default site is present.

Note that in the current apache2 cookbook default['apache']['default_site_enabled'] is set to false for all platforms.

The following is the error thrown on failure prior to this patch:

[2013-02-13T04:39:14+00:00] ERROR: Running exception handlers
[2013-02-13T04:39:14+00:00] ERROR: Exception handlers complete
Chef Client failed. 117 resources updated?[0m
[2013-02-13T04:39:14+00:00] FATAL: Stacktrace dumped to /tmp/chef-solo/chef-
stacktrace.out
[2013-02-13T04:39:14+00:00] FATAL: Mixlib::ShellOut::ShellCommandFailed:
execute[disable-default-site] (drupal::default line 108) had an error: Mixlib:: ShellOut::ShellCommandFailed: Expected
 process to exit with [0], but received '1'
---- Begin output of sudo a2dissite default ----
STDOUT: This site is already disabled, or does not exist!
STDERR:
---- End output of sudo a2dissite default ----
Ran sudo a2dissite default returned 1
ERROR: RuntimeError: chef-solo failed. See output above.

[dkinzer]

Thanks! BTW I think this builds on CentOS63 now.

[mdxp]

Awesome! Thanks.