Expire pair information in N hours

Closes #7

bin/hitch

@@ -1,6 +1,7 @@
 #!/usr/bin/env ruby
 
 require File.expand_path(File.join(File.dirname(__FILE__), %w[.. lib hitch]))
+require File.expand_path(File.join(File.dirname(__FILE__), %w[.. lib hitch version]))
 
 args = ARGV
 options = []
@@ -11,6 +12,9 @@ opts = OptionParser.new do |opts|
   opts.on("-s", "--setup", "Print out shell goodies") do
     options = [:setup]
   end
+  opts.on("-e N", "--expire N", Integer, "Expire pair information in N hours.") do |n|
+    options = [:expire, n]
+  end
   opts.on("-u", "--unhitch", "Clear pair information") do
     options = [:unhitch]
   end
@@ -21,11 +25,15 @@ opts = OptionParser.new do |opts|
     exit
   end
   opts.on_tail("-v", "--version", "Show version") do
-    abort "hitch v#{Hitch.version}"
+    abort "hitch v#{Hitch::VERSION}"
   end
 end
+
 if args.any?
   opts.parse!(args)
+  if options.delete(:expire)
+    system(Hitch.expire_command(options.pop))
+  end
   options = [:export, args] if options.empty?
 else
   options = [:print_info]

hitch.gemspec

@@ -1,46 +1,36 @@
+require File.expand_path("../lib/hitch/version", __FILE__)
+
 Gem::Specification.new do |s|
   s.name = %q{hitch}
-  s.version = "0.6.1"
+  s.version = Hitch::VERSION
+  s.platform = Gem::Platform::RUBY
 
-  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
-  s.authors = ["Rogelio J. Samour"]
-  s.date = %q{2010-10-10}
-  s.default_executable = %q{hitch}
+  s.required_rubygems_version = ">= 1.3.6"
+  s.authors = [%q{Rogelio J. Samour}]
+  s.date = Time.now.strftime('%F')
   s.email = %q{rogelio@therubymug.com}
-  s.executables = ["hitch"]
-  s.files = [
-    "Rakefile",
-     "bin/hitch",
-     "lib/hitch.rb",
-     "lib/hitch/author.rb",
-     "lib/hitch/ui.rb"
-  ]
+  s.executables = [%q{hitch}]
+  s.files = Dir["{lib}/**/*.rb", "bin/*", "Rakefile", "MIT_LICENSE", "*.md"]
   s.homepage = %q{http://github.com/therubymug/hitch}
-  s.rdoc_options = ["--charset=UTF-8"]
-  s.require_paths = ["lib"]
-  s.rubygems_version = %q{1.3.7}
+  s.rdoc_options = [%q{--charset=UTF-8}]
+  s.require_paths = [%q{lib}]
+  s.rubygems_version = %q{1.8.6}
+  s.description = %q{Git author attribution helper for pair programmers.}
   s.summary = %q{Hitch allows developers to be properly credited when Pair Programming and using Git.}
-  s.test_files = [
-    "spec/helper.rb",
-     "spec/hitch/author_spec.rb",
-     "spec/hitch/ui_spec.rb",
-     "spec/hitch_spec.rb"
-  ]
+  s.test_files = Dir["{spec}/**/*.rb"]
 
   if s.respond_to? :specification_version then
-    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
     s.specification_version = 3
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_development_dependency(%q<rspec>, [">= 1.3.0"])
-      s.add_runtime_dependency(%q<highline>, [">= 1.5.0"])
+      s.add_development_dependency(%q<rspec>, [">= 2.6.0"])
+      s.add_runtime_dependency(%q<highline>, [">= 1.6.2"])
     else
-      s.add_dependency(%q<rspec>, [">= 1.3.0"])
-      s.add_dependency(%q<highline>, [">= 1.5.0"])
+      s.add_dependency(%q<rspec>, [">= 2.6.0"])
+      s.add_dependency(%q<highline>, [">= 1.6.2"])
     end
   else
-    s.add_dependency(%q<rspec>, [">= 1.3.0"])
-    s.add_dependency(%q<highline>, [">= 1.5.0"])
+    s.add_dependency(%q<rspec>, [">= 2.6.0"])
+    s.add_dependency(%q<highline>, [">= 1.6.2"])
   end
 end
-

lib/hitch.rb

@@ -6,12 +6,6 @@
 
 module Hitch
 
-  VERSION = '0.6.1'
-
-  def self.version
-    VERSION
-  end
-
   def self.print_info
     if Hitch.pairing? && STDOUT.tty?
       Hitch::UI.highline.say("#{Hitch.git_author_name} <#{Hitch.git_author_email}>")
@@ -24,6 +18,10 @@ def self.export(pairs)
     print_info
   end
 
+  def self.expire_command(time)
+    %Q(sleep #{to_seconds(time)} && #{Hitch.bin_path} --unhitch&)
+  end
+
   def self.unhitch
     Hitch.current_pair = []
     write_export_file
@@ -123,10 +121,23 @@ def self.hitch_export_authors
     File.expand_path('~/.hitch_export_authors')
   end
 
+  def self.bin_path
+    %x[which hitch].chomp
+  end
+
   def self.pairing?
     current_pair.any?
   end
 
+  def self.to_seconds(value)
+    value = value.to_s.gsub(/[^\d]/, '').to_i
+    unless value.zero?
+      value * 60 * 60
+    else
+      raise StandardError
+    end
+  end
+
   def self.write_export_file
     File.open(hitch_export_authors, 'w'){|f| f.write(author_command) }
   end

lib/hitch/version.rb

@@ -0,0 +1,3 @@
+module Hitch
+  VERSION = "0.7.0"
+end

spec/hitch_spec.rb

@@ -14,6 +14,34 @@
     Hitch::Author.stub(:available_pairs).and_return(hitch_pairs)
   end
 
+  describe '.expire_command' do
+    before do
+      Hitch.stub(:bin_path).and_return('/usr/local/bin/hitch')
+    end
+
+    context 'with a valid string' do
+      let(:time_string) { '8' }
+      it 'returns the system command to call' do
+        Hitch.expire_command(time_string).should == 'sleep 28800 && /usr/local/bin/hitch --unhitch&'
+      end
+    end
+
+    context 'with a valid integer' do
+      let(:time_string) { 8 }
+      it 'returns the system command to call' do
+        Hitch.expire_command(time_string).should == 'sleep 28800 && /usr/local/bin/hitch --unhitch&'
+      end
+    end
+
+    context 'with an invalid string' do
+      let(:time_string) { 'BAR' }
+      it 'raises an error' do
+        expect {Hitch.expire_command(time_string)}.to raise_error(StandardError)
+      end
+    end
+
+  end
+
   describe '.author_command' do
 
     context 'when pairing' do