A CocoaPods source that discovers podspecs locally.

local_dependencies_source.rb

module Pod
  class LocalDependenciesSource < Source
    attr_reader :sandbox
    attr_reader :local_podspecs_by_name

    def self.register(plugin_name, sandbox, local_podspec_dependencies)
      return unless local_podspec_dependencies

      # Register a source that can be used to provide local podspecs
      HooksManager.register(plugin_name, :source_provider) do |context|
        context.add_source(LocalDependenciesSource.new(sandbox, local_podspec_dependencies))
      end
    end

    def initialize(sandbox, podspec_paths)
      @repo = Pathname(Dir.pwd).expand_path
      @sandbox = sandbox
      @local_podspecs_by_name = parse_local_podspec_dependencies(podspec_paths)
    end

    # Methods overrides for Pod::Source (Based on CocoaPods 1.3.1)

    def name
      'LocalDependenciesSource'
    end

    def versions(name)
      return local_podspecs_by_name[name][:versions]
    end

    def specification_path(name, version)
      Pathname(File.join(Dir.pwd, local_podspecs_by_name[name][:path]))
    end

    def search(query)
      podspec_name = query.name

      # Check if we have been told where to find this dependency
      return unless local_podspecs_by_name.keys.include?(podspec_name)

      # Add the podspec to the sandbox so it will be treated as a local dependency
      podspec_path = local_podspecs_by_name[podspec_name][:path]

      # Use the version from the Podspec as the source of truth
      spec = Specification.from_file(podspec_path)
      local_podspecs_by_name[podspec_name][:versions] = [spec.version]

      # Load the local path podspec into the sandbox for dependency resolver to know these as "local dependecies"
      local_podspec = Pod::ExternalSources::PathSource.new(podspec_name, { path: File.expand_path(podspec_path, Dir.pwd) }, Dir.pwd)
      local_podspec.fetch(sandbox)

      # return the podspec
      Specification::Set.new(query.name, self)
    end

    # Block any unnecessary Pod::Source methods to make failure point obvious on a CocoaPods upgrades

    def specs_dir
      raise Informative, 'Unused for the purposes of the LocalDependenciesSource'
    end

    def url
      raise Informative, 'Unused for the purposes of the LocalDependenciesSource'
    end

    def pod_path(name)
      raise Informative, 'Unused for the purposes of the LocalDependenciesSource'
    end

    def pods_for_specification_paths(spec_paths)
      raise Informative, 'Unused for the purposes of the LocalDependenciesSource'
    end

    def pods
      raise Informative, 'Unused for the purposes of the LocalDependenciesSource'
    end

    def update(show_output)
      raise Informative, 'Unused for the purposes of the LocalDependenciesSource'
    end

    def git?
      raise Informative, 'Unused for the purposes of the LocalDependenciesSource'
    end

    private

    def parse_local_podspec_dependencies(local_podspec_paths)
      parsed_podspecs = {}
      local_podspec_paths.each do |podspec_path|
        spec = Specification.from_file(podspec_path)
        parsed_podspecs[spec.name] = { path: podspec_path }
      end
      parsed_podspecs
    end
  end
end