[#51 - Pod::Command::Push] Added pod push command

Based on @lukeredpath script (https://github.com/CocoaPods/CocoaPods/issues/51#issuecomment-3851169)

lib/cocoapods/command.rb

@@ -6,6 +6,7 @@ module Pod
     autoload :Install,     'cocoapods/command/install'
     autoload :List,        'cocoapods/command/list'
     autoload :Presenter,   'cocoapods/command/presenter'
+    autoload :Push,        'cocoapods/command/push'
     autoload :Repo,        'cocoapods/command/repo'
     autoload :Search,      'cocoapods/command/search'
     autoload :Setup,       'cocoapods/command/setup'
@@ -47,11 +48,12 @@ module Pod
     def self.banner
       "To see help for the available commands run:\n" \
       "\n" \
-      "  * $ pod setup --help\n" \
-      "  * $ pod search --help\n" \
-      "  * $ pod list --help\n" \
       "  * $ pod install --help\n" \
+      "  * $ pod list --help\n" \
+      "  * $ pod push --help\n" \
       "  * $ pod repo --help\n" \
+      "  * $ pod search --help\n" \
+      "  * $ pod setup --help\n" \
       "  * $ pod spec --help"
     end
 
@@ -97,6 +99,7 @@ module Pod
       when 'list'    then List
       when 'setup'   then Setup
       when 'spec'    then Spec
+      when 'push'    then Push
       end
 
       if show_help || command_class.nil?

lib/cocoapods/command/push.rb

+require 'fileutils'
+
+module Pod
+  class Command
+    class Push < Command
+      def self.banner
+        %{Pushing new specifications to a spec-repo:
+
+    $ pod push [REPO]
+
+      Validates `*.podspec' in the current working dir, updates
+      the local copy of the repository named REPO, adds specifications
+      to REPO, and finally it pushes REPO to its remote.}
+      end
+
+      extend Executable
+      executable :git
+
+      def initialize(argv)
+        @repo = argv.shift_argument
+        super unless argv.empty? && @repo
+      end
+
+      def run
+        validate_podspec_files!
+        check_repo_status!
+        update_repo
+        add_specs_to_repo
+        push_repo
+      end
+
+      private
+
+      def update_repo
+        puts "Updating the `#{@repo}' repo\n".yellow unless config.silent
+        # show the output of git even if not verbose
+        Dir.chdir(repo_dir) { puts `git pull` }
+      end
+
+      def push_repo
+        puts "\nPushing the `#{@repo}' repo\n".yellow unless config.silent
+        Dir.chdir(repo_dir) { puts `git push` }
+      end
+
+      def repo_dir
+        dir = config.repos_dir + @repo
+        raise Informative, "[!] `#{@repo}' repo not found".red unless dir.exist?
+        dir
+      end
+
+      def check_repo_status!
+        # TODO: add specs for staged and unstaged files (tested manually)
+        status = Dir.chdir(repo_dir) { `git status --porcelain` } == ''
+        raise Informative, "[!] `#{@repo}' repo not clean".red unless status
+      end
+
+      def podspec_files
+        files = Pathname.glob("*.podspec")
+        raise Informative, "[!] Couldn't find .podspec file in current directory".red if files.empty?
+        files
+      end
+
+      def validate_podspec_files!
+        puts "\nValidating specs\n".yellow unless config.silent
+        lint_argv = ["lint"]
+        lint_argv << "--silent" if config.silent
+        all_valid = Spec.new(ARGV.new(lint_argv)).run
+        raise Informative, "[!] All specs must pass validation before push".red unless all_valid
+      end
+
+      def add_specs_to_repo
+
+        puts "\nAdding the specs to the #{@repo} repo\n".yellow unless config.silent
+        podspec_files.each do |spec_file|
+          spec = Pod::Specification.from_file(spec_file)
+
+          output_path = File.join(repo_dir, spec.name, spec.version.to_s)
+
+          if Pathname.new(output_path).exist?
+            message = "[Fix] #{spec}"
+          elsif Pathname.new(File.join(repo_dir, spec.name)).exist?
+            message = "[Update] #{spec}"
+          else
+            message = "[Add] #{spec}"
+          end
+          puts " - #{message}" unless config.silent
+
+          FileUtils.mkdir_p(output_path)
+          FileUtils.cp(Pathname.new(spec.name+'.podspec'), output_path)
+          Dir.chdir(repo_dir) do
+            git("add #{spec.name}")
+            git("commit -m '#{message}'")
+          end
+        end
+      end
+    end
+  end
+end