Initial commit

Author: Keith Walsh

app.rb

@@ -0,0 +1,22 @@
+require 'sinatra'
+require 'haml'
+require './crontab_formatter.rb'
+
+get '/' do
+  haml :index
+end
+
+post '/' do
+  formatter = CrontabFormatter.new(:minute => params[:minute],
+    :hour => params[:hour],
+    :day_of_month => params[:day_of_month],
+    :month => params[:month],
+    :day_of_week => params[:day_of_week],
+    :command => params[:command]
+  )
+
+  @params = params
+  @crontab = formatter.convert_to_cron_command
+
+  haml :index
+end

crontab_formatter.rb

@@ -0,0 +1,20 @@
+class CrontabFormatter
+  attr_reader :minute, :hour, :day_of_month, :month, :day_of_week, :command
+
+  def initialize(args)
+    @minute = args[:minute]
+    @hour = args[:hour]
+    @day_of_month = args[:day_of_month]
+    @month = args[:month]
+    @day_of_week = args[:day_of_week]
+    @command = args[:command]
+  end
+
+  def convert_to_cron_command
+    "#{join_vals(@minute)} #{join_vals(@hour)} #{join_vals(@day_of_month)} #{join_vals(@month)} #{join_vals(@day_of_week)} #{@command}"
+  end
+
+  def join_vals(vals)
+    vals.nil? ? "*" : vals.join(",")
+  end
+end

spec/crontab_formatter_spec.rb

@@ -0,0 +1,32 @@
+require './crontab_formatter.rb'
+require 'rspec'
+require 'spec_helper.rb'
+
+describe CrontabFormatter do
+  context "formatter" do
+    it "outputs valid crontab" do
+      formatter = CrontabFormatter.new(:minute => [30], :hour => [1,5], :day_of_month => nil, :month => [2], :day_of_week => [0], :command => "/task.rb")
+      expect(formatter.convert_to_cron_command).to eq("30 1,5 * 2 0 /task.rb")
+    end
+  end
+
+  context "vals" do
+    it "join with multiple" do
+      formatter = CrontabFormatter.new(:minute => [30,60])
+
+      expect(formatter.join_vals(formatter.minute)).to eq("30,60")
+    end
+
+    it "join when single" do
+      formatter = CrontabFormatter.new(:minute => [30])
+
+      expect(formatter.join_vals(formatter.minute)).to eq("30")
+    end
+
+    it "return * when none" do
+      formatter = CrontabFormatter.new(:minute => nil)
+
+      expect(formatter.join_vals(formatter.minute)).to eq("*")
+    end
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1,10 @@
+RSpec.configure do |config|
+  # Use color in STDOUT
+  config.color_enabled = true
+
+  # Use color not only in STDOUT but also in pagers and files
+  config.tty = true
+
+  # Use the specified formatter
+  config.formatter = :documentation # :progress, :html, :textmate
+end

views/index.haml

@@ -0,0 +1,33 @@
+=@crontab
+%form{:action => "/", :method => "post"}
+  %select{:multiple => true, :name => "minute[]", :size => 10, :style => "width: 50px"}
+    -(1..60).each do |m|
+      %option{:value => m}
+        =m
+
+  %select{:multiple => true, :name => "hour[]", :size => 10, :style => "width: 50px"}
+    -(1..24).each do |m|
+      %option{:value => m}
+        =m
+
+
+  %select{:multiple => true, :name => "day_of_month[]", :size => 10, :style => "width: 50px"}
+    -(1..31).each do |m|
+      %option{:value => m}
+        =m
+
+
+  %select{:multiple => true, :name => "month[]", :size => 10, :style => "width: 50px"}
+    -(1..12).each do |m|
+      %option{:value => m}
+        =m
+
+
+  %select{:multiple => true, :name => "day_of_week[]", :size => 10, :style => "width: 50px"}
+    -(1..7).each do |m|
+      %option{:value => m}
+        =m
+
+  %input{:type => "text", :name => "command"}
+
+  %input{:type => "submit", :value => "Submit"}