handle no-internet gracefully concerto#1413

Author: mfrederickson

app/models/concerto_plugin.rb

@@ -20,12 +20,16 @@ class ConcertoPlugin < ActiveRecord::Base
 
   def self.concerto_addons
     addons = Array.new
-    #we shouldn't be checking github if it's just a script launching rails
-    if !defined?(Rails::Console) && File.split($0).last != 'rake' && Octokit.rate_limit.remaining > 1
-      repositories = Octokit.repos 'concerto-addons'
-      repositories.each do |r|
-        addons << [r.name.titleize, r.name]
+    begin
+      #we shouldn't be checking github if it's just a script launching rails
+      if !defined?(Rails::Console) && File.split($0).last != 'rake' && Octokit.rate_limit.remaining > 1
+        repositories = Octokit.repos 'concerto-addons'
+        repositories.each do |r|
+          addons << [r.name.titleize, r.name]
+        end
       end
+    rescue Faraday::ConnectionFailed => e
+      Rails.logger.error("concerto-addons repos could not be enumerated - #{e.message}")
     end
     return addons
   end

lib/version_check.rb

@@ -10,7 +10,12 @@ def self.latest_version
         end
       else # Fetch the latest version.
         Rails.logger.info 'Downloading latest Concerto version information for the first time.'
-        version = Octokit.latest_release('concerto/concerto').tag_name
+        begin
+          version = Octokit.latest_release('concerto/concerto').tag_name
+        rescue Faraday::ConnectionFailed => e
+          Rails.logger.error "Unable to fetch Concerto version - #{e.message}"
+          version = nil
+        end
       end
       return version
     rescue Octokit::TooManyRequests => e