503 error on settings page: ActionView::Template::Error (undefined method `split' for nil:NilClass)

[anarcat]

after trying to follow the upgrade procedures to go from something like an old 0.4 to 0.7.10 here:

http://jbox-web.github.io/redmine_git_hosting/howtos/migrate/#

... things were going pretty well until i fixed the "git user" field in the preferences to talk to gitolite properly (from git to gitolite). then the /settings/plugin/redmine_git_hosting path gives me:

Started GET "/settings/plugin/redmine_git_hosting" for X at 2015-02-04 17:36:20 -0500
Processing by SettingsController#plugin as HTML
  Parameters: {"id"=>"redmine_git_hosting"}
  Current user: Y (id=3)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_config_ssh.html.erb (116.6ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_config_storage.html.erb (658.2ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_config_file.html.erb (1.3ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_config_global.html.erb (113.1ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_config_access.html.erb (2.0ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_config_hooks.html.erb (1.1ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_config_cache.html.erb (0.6ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_config_notify.html.erb (1.1ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_display_access.html.erb (0.9ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_redmine_config.html.erb (2.6ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_sidekiq_interface.html.erb (0.3ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_gitolite_config_test.html.erb (5786.8ms)
  Rendered common/_tabs.html.erb (6690.7ms)
  Rendered plugins/redmine_git_hosting/app/views/settings/_redmine_git_hosting.html.erb (6693.2ms)
  Rendered settings/plugin.html.erb within layouts/admin (6694.0ms)
Completed 500 Internal Server Error in 6698.2ms

ActionView::Template::Error (undefined method `split' for nil:NilClass):
    68:   </tr>
    69:
    70:
    71:   <% gitolite_checks = RedmineGitolite::HookManager.check_install! %>
    72:
    73:   <tr>
    74:     <td><%= l(:label_gitolite_hooks_params_installed) %></td>
  app/views/common/_tabs.html.erb:22:in `block in _app_views_common__tabs_html_erb___224549082141810226_70141840'
  app/views/common/_tabs.html.erb:21:in `each'
  app/views/common/_tabs.html.erb:21:in `_app_views_common__tabs_html_erb___224549082141810226_70141840'
  app/helpers/application_helper.rb:318:in `render_tabs'
  app/views/settings/plugin.html.erb:6:in `block in _app_views_settings_plugin_html_erb___2076124447911929339_69708500'
  app/views/settings/plugin.html.erb:4:in `_app_views_settings_plugin_html_erb___2076124447911929339_69708500'

this makes the plugin basically unusable. i tried to update to v1.0.0, but failed because of #339 (comment)

[anarcat]

this goes away if i remove the banner on the SSH server which gets showed always, it's a "cat" in /etc/profile.d that breaks everything...

[n-rodriguez]

This is a partial fix : it only avoids "undefined method `split' for nil:NilClass" error.

Actually the "cat" sends data on stdout when installing hook files which breaks the "sudo pipe".

I can only advise you to remove the "cat" for the Git user.

[anarcat]

yep, we did remove that, but the point here was to recover more gracefully in case of garbled output.