reimplement once again

lib/cocoapods-core/single_source.rb

@@ -31,15 +31,29 @@ def raw_versions
       end.compact
     end
 
-    def podspecs 
-      Pathname.glob(repo.join('*.podspec'))
+    def process_podspec(path, output_path)
+      spec = Specification.from_file(path)
+      File.open(output_path, 'w') { |f| f.write(spec.to_pretty_json) }
+      output_path
+    end
+
+    def preload_podspecs_at_version(version)
+      version_dir = repo.join('.git', '.specs', version.to_s)
+      if version_dir.exist?
+        Pathname.glob(version_dir.join('*'))
+      else
+        repo_git(['checkout', version.to_s])
+        version_dir.mkpath
+        Pathname.glob(repo.join('*.podspec')).map do |podspec_path|
+          name = podspec_path.basename('.podspec')
+          process_podspec(podspec_path, version_dir.join("#{name}.podspec.json"))
+        end.compact
+      end
     end
 
     def spec_paths
       raw_versions.map do |version|
-        podspecs.map do |podspec|
-          specification_path(podspec.basename('.podspec'), version)
-        end.compact
+        preload_podspecs_at_version(version)
       end.flatten
     end
 
@@ -52,10 +66,9 @@ def spec_paths
     #
     #
     def pods
-      pods = spec_paths.map do |spec_path|
+      spec_paths.map do |spec_path|
         spec_path.basename('.podspec.json').to_s
-      end
-      Set.new(pods).sort
+      end.flatten.uniq.sort
     end
 
     # @return [Array<Version>] all the available versions for the Pod, sorted
@@ -75,16 +88,6 @@ def versions(name)
       end.compact.sort.reverse
     end
 
-    # @return [Specification] the specification for a given version of Pod.
-    #
-    # @param  @see specification_path
-    #
-    def specification(name, version)
-      repo_git(['checkout', version])
-
-      Specification.from_file(specification_path(name, version))
-    end
-
     # Returns the path of the specification with the given name and version.
     #
     # @param  [String] name
@@ -99,17 +102,13 @@ def specification_path(name, version)
       raise ArgumentError, 'No name' unless name
       raise ArgumentError, 'No version' unless version
 
-      path = repo.join('.git', '.specs', name, version.to_s)
+      preload_podspecs_at_version(version)
 
-      unless path.join("#{name}.podspec.json").exist?
-        repo_git(['checkout', version])
-        return unless repo.join("#{name}.podspec").exist?
+      path = repo.join('.git', '.specs', version.to_s, "#{name}.podspec.json")
 
-        spec = Specification.from_file(repo.join("#{name}.podspec"))
-        path.mkpath
-        File.open(path.join("#{name}.podspec.json"), 'w') { |f| f.write(spec.to_pretty_json) }
-      end
-      path.join("#{name}.podspec.json")
+      return nil unless path.exist?
+
+      path
     end
 
     # @return [Array<Specification>] all the specifications contained by the

lib/cocoapods-core/source/manager.rb

@@ -313,9 +313,10 @@ def source_from_path(path)
                         TrunkSource.new(key)
                       when (key + '.url').exist?
                         CDNSource.new(key)
-                      when Dir[key.join('*.podspec')].count > 0
+                      when key.join('.git', '.specs').exist? || Dir[key.join('*.podspec')].count > 0
                         SingleSource.new(key)
                       else
+                        require 'pry'; binding.pry
                         Source.new(key)
                       end
         end