New command podfile-info - Shows information on installed Pods #855

lib/cocoapods/command/project.rb

@@ -85,6 +85,89 @@ module Pod
       end
     end
 
+    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')
+        @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 = (@info_all) ? lockfile.dependencies : lockfile.pod_names
+          pods = lockfile.pod_names
+        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 (config.silent || @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])
+        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])
+
+        pods.each do |pod| 
+          if in_md
+            UI.puts "* [#{pod[:name]}](#{pod[:homepage]}) - #{pod[:summary]}" 
+          else
+            UI.puts "- #{pod[:name]} - #{pod[:summary]}" 
+          end
+        end
+      end
+
+    end
+
   end
 end