Convert the `pod podfile_info` command to a plugin

This removes the podfile_info functionality from cocoapods.

CHANGELOG.md

@@ -39,6 +39,13 @@ To install or update CocoaPods see this [guide](http://docs.cocoapods.org/guides
   test doesn't affect the normal workflow.  
   [Fabio Pelosin](https://github.com/irrationalfab)
 
+###### Refactor
+
+* The command `podfile_info` is now a plugin offered by CocoaPods.
+  As a result, the command has been removed from CocoaPods.  
+  [Joshua Kalpin](https://github.com/Kapin)
+  [#1589](https://github.com/CocoaPods/CocoaPods/issues/1589)
+
 ###### Bug Fixes
 
 * Fixed a bug which resulted in `pod lib lint` not being able to find the

lib/cocoapods/command.rb

@@ -13,7 +13,6 @@ module Pod
     require 'cocoapods/command/lib'
     require 'cocoapods/command/list'
     require 'cocoapods/command/outdated'
-    require 'cocoapods/command/podfile_info'
     require 'cocoapods/command/project'
     require 'cocoapods/command/push'
     require 'cocoapods/command/repo'

lib/cocoapods/command/podfile_info.rb

-module Pod
-  class Command
-
-    class PodfileInfo < Command
-
-      self.summary = 'Shows information on installed Pods.'
-      self.description = <<-DESC
-        Shows information on installed Pods in current Project.
-        If optional `PODFILE_PATH` provided, the info will be shown for
-        that specific Podfile
-      DESC
-      self.arguments = '[PODFILE_PATH]'
-
-      def self.options
-        [
-          ["--all", "Show information about all Pods with dependencies that are used in a project"],
-          ["--md", "Output information in Markdown format"]
-        ].concat(super)
-      end
-
-      def initialize(argv)
-        @info_all = argv.flag?('all')
-        @info_in_md = argv.flag?('md')
-        @info_license = argv.flag?('license')
-        @podfile_path = argv.shift_argument
-        super
-      end
-
-      def run
-        use_podfile = (@podfile_path || !config.lockfile)
-
-        if !use_podfile
-          UI.puts "Using lockfile" if config.verbose?
-          verify_lockfile_exists!
-          lockfile = config.lockfile
-          pods = lockfile.pod_names
-          if @info_all
-            deps = lockfile.dependencies.map{|d| d.name}
-            pods = (deps + pods).uniq
-          end
-        elsif @podfile_path
-          podfile = Pod::Podfile.from_file(@podfile_path)
-          pods = pods_from_podfile(podfile)
-        else
-          verify_podfile_exists!
-          podfile = config.podfile
-          pods = pods_from_podfile(podfile)
-        end
-
-        UI.puts "\nPods used:\n".yellow unless @info_in_md
-        pods_info(pods, @info_in_md)
-      end
-
-      def pods_from_podfile(podfile)
-        pods = []
-        podfile.root_target_definitions.each {|e| h = e.to_hash; pods << h['dependencies'] if h['dependencies']}
-        pods.flatten!
-        pods.collect! {|pod| (pod.is_a?(Hash)) ? pod.keys.first : pod}
-      end
-
-      def pods_info_hash(pods, keys=[:name, :homepage, :summary, :license])
-        pods_info = []
-        pods.each do |pod|
-          spec = (Pod::SourcesManager.search_by_name(pod).first rescue nil)
-          if spec
-            info = {}
-            keys.each { |k| info[k] = spec.specification.send(k) }
-            pods_info << info
-          else
-
-          end
-
-        end
-        pods_info
-      end
-
-      def pods_info(pods, in_md=false)
-        pods = pods_info_hash(pods, [:name, :homepage, :summary, :license])
-
-        pods.each do |pod|
-          if in_md
-            UI.puts "* [#{pod[:name]}](#{pod[:homepage]}) [#{pod[:license][:type]}] - #{pod[:summary]}"
-          else
-            UI.puts "- #{pod[:name]} [#{pod[:license][:type]}]".green
-            UI.puts "  #{pod[:summary]}\n\n"
-          end
-        end
-      end
-
-    end
-
-  end
-end

spec/functional/command/podfile_info_spec.rb

-require File.expand_path('../../../spec_helper', __FILE__)
-
-module Pod
-  describe Command::PodfileInfo do
-    extend SpecHelper::TemporaryRepos
-
-    before do
-      @test_source = Source.new(fixture('spec-repos/test_repo'))
-      Source::Aggregate.any_instance.stubs(:all).returns([@test_source])
-      SourcesManager.updated_search_index = nil
-    end
-
-    it "tells the user pods info from Podfile" do
-
-      file = temporary_directory + 'Podfile'
-
-      text = <<-PODFILE
-      platform :ios
-      pod 'BananaLib'
-      pod 'JSONKit'
-      PODFILE
-      File.open(file, 'w') {|f| f.write(text) }
-
-      Dir.chdir(temporary_directory) do
-        output = run_command('podfile-info')
-        output.should.include? '- BananaLib'
-        output.should.include? 'Chunky bananas!'
-        output.should.include? '- JSONKit'
-        output.should.include? 'A Very High Performance Objective-C JSON Library.'
-      end
-    end
-  end
-end
-