Class: CocoapodsPruneLocalizations::Pruner

Inherits:
Object
  • Object
show all
Defined in:
lib/pruner.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(context, user_options) ⇒ Pruner

Returns a new instance of Pruner.



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# File 'lib/pruner.rb', line 5

def initialize(context, user_options)
  @sandbox_root = Pathname.new context.sandbox_root
  @pod_project = Xcodeproj::Project.open File.join(context.sandbox_root, 'Pods.xcodeproj')
  @user_options = self.class.user_options(context, user_options)
  @pruned_bundles_path = File.join(context.sandbox_root, "Pruned Localized Bundles")
  FileUtils.mkdir @pruned_bundles_path unless Dir.exist? @pruned_bundles_path
end

Class Method Details

.user_options(context, orig_user_opts = {}) ⇒ Object 



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# File 'lib/pruner.rb', line 13

def self.user_options(context, orig_user_opts = {})
  user_options = {}
  if orig_user_opts["localizations"]
    user_options["localizations"] = orig_user_opts["localizations"].map do |loc|
      if loc.end_with? ".lproj"
        loc
      else
        loc + ".lproj"
      end
    end
  else
    user_options["localizations"] = Utils.user_project_localizations(context.umbrella_targets)
  end
  user_options
end

Instance Method Details

#prune! ⇒ Object 



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# File 'lib/pruner.rb', line 41

def prune!
  rsrc_scripts_files = Hash.new
  self.resources_scripts(@pod_project["Targets Support Files"]).each do |file|
    rsrc_scripts_files[file] = File.readlines(file.real_path)
  end
  
  langs_to_keep = @user_options["localizations"] || []
  Pod::UI.title 'Pruning unused localizations' do

    #Group all the Pods
    pod_groups = @pod_project["Pods"].children.objects
    dev_pod_group = @pod_project["Development Pods"]
    pod_groups += dev_pod_group.children.objects if dev_pod_group

    pod_groups.each do |group|

      #Gather all Resources groups
      resGroups = group.recursive_children_groups.select do |group|
        group.name == "Resources"
      end
      next unless resGroups.length > 0
      
      markForRemoval = []
      trimmedBundlesToAdd = Hash.new

      resGroups.each do |resGroup|
        subTrimmedBundlesToAdd = Hash.new
        resGroup.files.each do |file|
          keep = true
          if file.path.end_with? ".lproj"
            keep = langs_to_keep.include?(File.basename(file.path))
          elsif file.path.end_with? ".bundle"
            trimmed_bundle = self.trimmed_bundle(file.real_path)
            if trimmed_bundle 
              subTrimmedBundlesToAdd[file.real_path] = trimmed_bundle
              keep = false
            end
          end
          if !keep
            markForRemoval << file
          end
        end
        trimmedBundlesToAdd[resGroup] = subTrimmedBundlesToAdd unless subTrimmedBundlesToAdd.length == 0              
      end

      #Remove file references indentified for removal
      if markForRemoval.length > 0
        Pod::UI.section "Pruning in #{group.path}" do
          markForRemoval.each do |file|
            Pod::UI.message "- Pruning #{file}"
            
            unless file.path.end_with? ".bundle"
              relative_path = file.real_path.relative_path_from @sandbox_root
              rsrc_scripts_files.each_value do |lines|
                for i in 0...lines.length
                  line = lines[i]
                  if line.include?(relative_path.to_s)
                    lines[i] = ""
                  end
                end
              end
            end
            file.remove_from_project
          end
        end
      end

      if trimmedBundlesToAdd.length > 0
        Pod::UI.section "Adding trimmed bundles to #{group.path}" do
          group_path = File.join(@pruned_bundles_path, group.path)
          FileUtils.mkdir group_path unless Dir.exist? group_path
          trimmedBundlesToAdd.each_pair do |resGroup, bundleArray|
            bundleArray.each_pair do |original_bundle_path, bundle_path|
              bundle_name = File.basename(original_bundle_path)
              new_bundle_path = File.join(group_path, bundle_name)
              FileUtils.rm_r(new_bundle_path) if File.exist? new_bundle_path
              FileUtils.mv(bundle_path, new_bundle_path)
              resGroup.new_reference(new_bundle_path)
              
              relative_path = original_bundle_path.relative_path_from(@sandbox_root).to_s
              new_relative_path = Pathname.new(new_bundle_path).relative_path_from(@sandbox_root).to_s
              rsrc_scripts_files.each_value do |lines|
                for i in 0...lines.length
                  lines[i] = lines[i].gsub(relative_path, new_relative_path)
                end
              end
            end
          end
        end
      end
      
    end
    
    rsrc_scripts_files.each_pair do |file, lines|
      fd = File.open(file.real_path, "w")
      lines.each do |line|
        fd.puts line unless (line == "") 
      end
      fd.close
    end
    @pod_project.save
  end
end

#resources_scripts(group) ⇒ Object 



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# File 'lib/pruner.rb', line 29

def resources_scripts(group)
  file_references = []
  group.children.objects.each do |children|
    if children.class == Xcodeproj::Project::Object::PBXFileReference && children.path.end_with?("resources.sh")
        file_references << children
    elsif children.class == Xcodeproj::Project::Object::PBXGroup
        file_references.concat(self.resources_scripts(children))
    end
  end
  file_references
end

#trimmed_bundle(bundle_path) ⇒ Object 



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# File 'lib/pruner.rb', line 145

def trimmed_bundle(bundle_path)
  langs_to_keep = @user_options["localizations"] || []
  return unless Dir.exist? bundle_path
  tmp_dir = Dir.mktmpdir
  changed_bundle = false
  Dir.foreach(bundle_path) do |file_name|
    if (file_name == "." || file_name == "..") 
      next
    end
    
    absolute_file_path = File.join(bundle_path, file_name)
    if file_name.end_with? ".lproj"
      if langs_to_keep.include?(file_name)
        FileUtils.cp_r(absolute_file_path, tmp_dir)
      else
        changed_bundle = true
      end
    elsif file_name.end_with? ".bundle"
      sub_trimmed_bundle = self.trimmed_bundle(absolute_file_path)
      if sub_trimmed_bundle
        sub_bundle_path = File.join(tmp_dir, file_name)
        FileUtils.mv(sub_trimmed_bundle, sub_bundle_path)
        changed_bundle = true
      else
        FileUtils.cp_r(absolute_file_path, tmp_dir)
      end
    else
      FileUtils.cp_r(absolute_file_path, tmp_dir)
    end
  end
  
  tmp_dir if changed_bundle
end