▁▂▃▅▂▇

.gitignore

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+*.gem
+*.rbc
+.bundle
+.config
+.yardoc
+Gemfile.lock
+InstalledFiles
+_yardoc
+coverage
+doc/
+lib/bundler/man
+pkg
+rdoc
+spec/reports
+test/tmp
+test/version_tmp
+tmp

.ruby-gemset

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+Sparkr

.ruby-version

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+ruby-2.0.0

Gemfile

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+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in homecoming.gemspec
+gemspec
+
+gem 'simplecov', :require => false, :group => :test

LICENSE.txt

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+Copyright (c) 2014 René Föhring
+
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# Sparkr
+
+TODO: Write a gem description
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+    gem 'Sparkr'
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install Sparkr
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Contributing
+
+1. Fork it ( http://github.com/<my-github-username>/Sparkr/fork )
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Add some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create new Pull Request

Rakefile

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+require "bundler/gem_tasks"
+
+require 'rake/testtask'
+
+Rake::TestTask.new do |t|
+  t.pattern = "test/**/*_test.rb"
+end
+
+task :default => :test

bin/sparkr

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+#!/usr/bin/env ruby
+
+require 'bundler'
+begin
+  Bundler.require
+rescue Bundler::GemfileNotFound
+  require 'Sparkr'
+end
+
+require 'Sparkr'
+Sparkr::CLI.run(*ARGV)

lib/sparkr.rb

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+require "sparkr/cli"
+require "sparkr/sparkline"
+require "sparkr/version"
+
+module Sparkr
+  def self.sparkline(*args)
+    Sparkline.new(*args).to_s
+  end
+end

lib/sparkr/cli.rb

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+module Sparkr
+  class CLI
+    def self.run(*args)
+      puts Sparkline.new(args.map(&:to_f)).to_s
+    end
+  end
+end

lib/sparkr/sparkline.rb

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+require 'pry'
+
+module Sparkr
+  class Sparkline
+    TICKS = %w(▁ ▂ ▃ ▄ ▅ ▆ ▇ █)
+
+    def initialize(numbers)
+      @step_count = TICKS.size
+      @step_height = (numbers.max - numbers.min) / @step_count + 1
+
+      indexes = numbers.map do |n|
+        ((n - numbers.min) / @step_height).to_i
+      end
+      @ticks = indexes.map do |index|
+        TICKS[index]
+      end
+      binding.pry
+    end
+
+    def to_s
+      @ticks.join('')
+    end
+  end
+end

lib/sparkr/version.rb

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+module Sparkr
+  VERSION = "0.0.1"
+end

sparkr.gemspec

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+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'sparkr/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "sparkr"
+  spec.version       = Sparkr::VERSION
+  spec.authors       = ["René Föhring"]
+  spec.email         = ["rf@bamaru.de"]
+  spec.summary       = %w{Sparklines in your shell, in Ruby}
+  spec.description   = %q{Sparklines in your shell, in Ruby}
+  spec.homepage      = ""
+  spec.license       = "MIT"
+
+  spec.files         = `git ls-files -z`.split("\x0")
+  spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
+  spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.5"
+  spec.add_development_dependency "rake"
+  spec.add_development_dependency "pry"
+end

test/sparkr_test.rb

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+require File.expand_path(File.dirname(__FILE__) + '/test_helper')
+
+describe ::Sparkr do
+  it "should find work" do
+    puts Sparkr.sparkline([1,5,22,13,5])
+    puts Sparkr.sparkline([0,30,55,80,33,150])
+    puts Sparkr.sparkline([5.5,20])
+    puts Sparkr.sparkline([1,2,3,4,100,5,10,20,50,300])
+    puts Sparkr.sparkline([1,50,100])
+    puts Sparkr.sparkline([2,4,8])
+    puts Sparkr.sparkline([1,2,3,4,5])
+
+    assert_equal '▁▂█▅▂', Sparkr.sparkline([1,5,22,13,5])
+    assert_equal '▁▂▃▅▂▇', Sparkr.sparkline([0,30,55,80,33,150])
+    assert_equal '▁█', Sparkr.sparkline([5.5,20])
+    assert_equal '▁▁▁▁▃▁▁▁▂█', Sparkr.sparkline([1,2,3,4,100,5,10,20,50,300])
+    assert_equal '▁▄█', Sparkr.sparkline([1,50,100])
+    assert_equal '▁▃█', Sparkr.sparkline([2,4,8])
+    assert_equal '▁▂▄▆█', Sparkr.sparkline([1,2,3,4,5])
+  end
+end

test/test_helper.rb

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+require 'simplecov'
+SimpleCov.start
+
+$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
+
+require 'minitest/spec'
+require 'minitest/autorun'
+require 'bundler'
+Bundler.require
+
+def fixture_path(name)
+  File.join(File.dirname(__FILE__), "fixtures", name.to_s)
+end