Merge pull request #142 from CDL-Dryad/fix-dependency-checker

Fixes our failing dependency checks

Gemfile.lock

@@ -554,7 +554,7 @@ GEM
     passenger (6.0.4)
       rack
       rake (>= 0.8.1)
-    posix-spawn (0.3.13)
+    posix-spawn (0.3.14)
     postrank-uri (1.0.24)
       addressable (>= 2.4.0)
       nokogiri (>= 1.8.0)

stash/stash_engine/app/services/stash_engine/status_dashboard/dependency_checker_service.rb

@@ -31,11 +31,17 @@ def report_outage
       end
 
       def extract_last_log_date(log)
-        contents = File.open(log).to_a
+        contents = read_end_of_file(log)
         last_run_date = Time.parse(contents.last.match(DATE_TIME_MATCHER).to_s) unless contents.empty?
         last_run_date
       end
 
+      def read_end_of_file(log)
+        f = File.new(log)
+        f.seek(-512, IO::SEEK_END) # to 512 bytes before end of file
+        f.read.strip.split("\n") # this reads just end of file, strips whitespace and converts to array of lines
+      end
+
     end
 
   end

stash/stash_engine/app/services/stash_engine/status_dashboard/oai_service.rb

@@ -9,8 +9,8 @@ class OaiService < DependencyCheckerService
 
       def ping_dependency
         super
-        env = Rails.env.production? ? 'prd' : 'stg'
-        target = "http://uc3-mrtoai-#{env}.cdlib.org:37001/mrtoai/state"
+        env = Rails.env.production? ? 'mrtoai.cdlib.org' : 'mrtoai-stg.cdlib.org'
+        target = "http://#{env}:37001/mrtoai/state"
         resp = HTTParty.get(target)
         online = resp.code == 200
         msg = resp.body unless online