Class: PodBuilder::Command::UpdateLldbInit

Inherits:
Object
  • Object
show all
Defined in:
lib/pod_builder/command/generate_lldbinit.rb

Class Method Summary collapse

Class Method Details

.call ⇒ Object 



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# File 'lib/pod_builder/command/generate_lldbinit.rb', line 7

def self.call
  Configuration.check_inited
  if Configuration.build_using_repo_paths
    raise "\n\nlldb shenanigans not supported when 'build_using_repo_paths' is enabled".red
  end
  
  arguments = ARGV.dup
  
  if arguments.count > 0
    source_path = arguments[0]
    if !is_absolute_path(source_path)
      source_path = PodBuilder::basepath(source_path)
    end
    source_path = File.expand_path(source_path)  
    
    raise "\n\nSpecified path does not exists\n".red unless File.directory?(source_path)
  end
  
  base_path = PodBuilder::basepath
  app_podfile_content = File.read(PodBuilder::project_path("Podfile"))
  
  lldbinit_path = File.expand_path(PodBuilder::basepath(Configuration.lldbinit_name))
  
  puts "Extracting debug information".yellow

  FileUtils.mkdir_p(Configuration.build_path)
  compilation_base_path = Pathname.new(Configuration.build_path).realpath.to_s
          
  pods_mappings = Hash.new

  app_podfile_content.each_line do |line|
    unless (name_match = line.match(/^\s*pod ['|"](.*?)['|"](.*)/)) && name_match.size == 3
      next
    end
    
    pod_name = name_match[1].split("/").first
    
    source = nil
    destination = PodBuilder::basepath # puts some existing path, see lldbinit_content.reverse! comment
    if (path_match = line.match(/:path\s?=>\s?['|"](.*?)['|"]/)) && path_match.size == 2
      pod_path = path_match[1]
      if !is_absolute_path(pod_path)
        pod_path = File.expand_path("#{base_path}/#{pod_path}")              
      end

      is_prebuilt = pod_path.start_with?(PodBuilder::prebuiltpath(pod_name))
      if is_prebuilt
        source = "#{compilation_base_path}/Pods/#{pod_name}"
        destination = PodBuilder::prebuiltpath(pod_name)

        info_path = "#{pod_path}/#{Configuration.prebuilt_info_filename}"
        next unless File.exists?(info_path)
        data = JSON.parse(File.read(info_path))

        build_source_path_matches = data["entry"].match(/:path => '(.*?)'/)
        if build_source_path_matches&.size == 2
          build_source_path = build_source_path_matches[1]
          if !is_absolute_path(build_source_path)
            build_source_path = PodBuilder::basepath(build_source_path)
          end
          destination = File.expand_path(build_source_path)  
        end
      elsif File.directory?(pod_path)
        source = pod_path
        destination = pod_path
      end
    else
      pod_path = PodBuilder::project_path("Pods/#{pod_name}")
      if File.directory?(pod_path)
        source = pod_path
        destination = pod_path
      end            
    end

    if !source.nil? && File.directory?(destination)
      pods_mappings[source] = destination
    end
  end

  prebuilt_source_map_entries = []
  other_source_map_entries = []
  pods_mappings.each do |source, destination| 
    if source.include?(compilation_base_path)         
      prebuilt_source_map_entries.push("settings append target.source-map '#{source}/' '#{destination}/'")
    else
      other_source_map_entries.push("settings append target.source-map '#{source}/' '#{destination}/'")
    end
  end

  # There is a bug/unexpected behavior related to the target.source-map command
  #
  # If I have debug symbols for the following files:
  # /tmp/pod_builder/Pods/SomeName/... which are now under /new/path/SomeName/
  # /tmp/pod_builder/Pods/SomeNameCommon/... which are now under /new/path/SomeNameCommon/
  #
  # adding a remap as follows
  # settings append '/tmp/pod_builder/Pods/SomeName/' '/new/path/SomeName/'
  #
  # causes breakpoints added to files under /new/path/SomeNameCommon/ to be incorrectly added to
  # /tmp/pod_builder/Pods/SomeName/Common/Somefile
  # 
  # LLDB evaluates remap in order so to workaround this issue we have to add a remap of
  # /tmp/pod_builder/Pods/SomeNameCommon/ before remapping /tmp/pod_builder/Pods/SomeName/
  # even if the remap isn't needed!
  lldbinit_content = other_source_map_entries.sort.reverse + prebuilt_source_map_entries.sort.reverse

  lldbinit_content.insert(0, "settings clear target.source-map\n")

  File.write(lldbinit_path, lldbinit_content.join("\n"))
  
  puts "\n\nšŸŽ‰ done!\n".green
  return 0
end