Make rake test fail if a command fails. Install gem

Rakefile

@@ -19,10 +19,15 @@ task :spec => :clean
 
 desc 'Run oddb2xml with all commonly used combinations'
 task :test => [:clean, :spec, :gem] do
-  system("./test_options.rb 2>&1 | tee test_options.log")
+  log_file = 'test_options.log'
+  puts "Running test_options.rb with Output redirected to #{log_file}. This will take some time (e.g. 20 minutes)"
+  res = system("./test_options.rb 2>&1 > #{log_file}")
+  puts "Running test_options.rb returned #{res.inspect}. Output was redirected to #{log_file}"
+  exit 1 unless res
 end
 
 require 'rake/clean'
+CLEAN.include FileList['pkg/*.gem']
 CLEAN.include FileList['*.xls*']
 CLEAN.include FileList['*.xml*']
 CLEAN.include FileList['*.dat*']

test_options.rb

@@ -22,19 +22,30 @@ def test_one_call(cmd)
   puts "#{duration} success #{res} for #{cmd}"
   exit 2 unless res
   FileUtils.makedirs(dest)
+  return unless File.directory?('data/download')
   FileUtils.cp_r('data/download', dest, :preserve => true, :verbose => true) if Dir.glob(Ausgabe).size > 0
   FileUtils.cp(Dir.glob('*.dat'), dest, :preserve => true, :verbose => true) if Dir.glob('*.dat').size > 0
   FileUtils.cp(Dir.glob('*.xml'), dest, :preserve => true, :verbose => true) if Dir.glob('*.xml').size > 0
   FileUtils.cp(Dir.glob('*.gz'),  dest, :preserve => true, :verbose => true) if Dir.glob('*.gz').size > 0
 end
 
+def prepare_for_gem_test
+  [ "rake clean gem"      , # build our gem first
+#    "gem uninstall --all --ignore-dependencies --executables",
+    "gem install pkg/*.gem"
+  ].each {
+    |cmd|
+      puts "Running #{cmd}"
+      exit 1 unless system(cmd)
+  }
+end
 
-system("rake install") # build and install our gem first
 Ausgabe = File.join(Dir.pwd, 'ausgabe', Time.now.strftime('%Y.%m.%d-%H:%M'))
 FileUtils.makedirs(Ausgabe)
+prepare_for_gem_test
+test_one_call('oddb2xml -f xml')
 test_one_call('oddb2xml -x address')
 test_one_call('oddb2xml -f dat')
-test_one_call('oddb2xml -f xml')
 test_one_call('oddb2xml -f dat -a nonpharma')
 test_one_call('oddb2xml -t md')
 test_one_call('oddb2xml -a nonpharma -t md -c tar.gz')