Module: Pod::Bazel

Defined in:
lib/cocoapods/bazel.rb,
lib/cocoapods/bazel/util.rb,
lib/cocoapods/bazel/config.rb,
lib/cocoapods/bazel/target.rb,
lib/cocoapods/bazel/version.rb,
lib/cocoapods/bazel/xcconfig_resolver.rb

Defined Under Namespace

Modules: Util, XCConfigResolver Classes: Config, Target

Constant Summary collapse

VERSION = 
'0.1.5'

Class Method Summary collapse

Class Method Details

.format_files(build_files:, buildifier:, workspace:) ⇒ Object 



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# File 'lib/cocoapods/bazel.rb', line 130

def self.format_files(build_files:, buildifier:, workspace:)
  return if build_files.empty?

  args = []
  case buildifier
  when true
    return unless Pod::Executable.which('buildifier')

    args = ['buildifier']
  when String, Array
    args = Array(buildifier)
  else
    return
  end
  args += %w[-type build]

  executable, *args = args
  Pod::Executable.execute_command executable,
                                  args + build_files.each_key.map { |d| File.join workspace, d, 'BUILD.bazel' },
                                  true
end

.post_install(installer:) ⇒ Object 



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# File 'lib/cocoapods/bazel.rb', line 11

def self.post_install(installer:)
  return unless (config = Config.from_podfile(installer.podfile))

  default_xcconfigs = config.default_xcconfigs.transform_values do |xcconfig|
    _name, xcconfig = XCConfigResolver.resolve_xcconfig(xcconfig)
    xcconfig
  end

  UI.titled_section 'Generating Bazel files' do
    workspace = installer.config.installation_root
    sandbox = installer.sandbox

    # Ensure we declare the sandbox (Pods/) as a package so each Pod (as a package) belongs to sandbox root package instead
    FileUtils.touch(File.join(installer.config.sandbox_root, 'BUILD.bazel'))

    build_files = Hash.new { |h, k| h[k] = StarlarkCompiler::BuildFile.new(workspace: workspace, package: k) }
    installer.pod_targets.each do |pod_target|
      package = sandbox.pod_dir(pod_target.pod_name).relative_path_from(workspace).to_s
      if package.start_with?('..')
        raise Informative, <<~MSG
          Bazel does not support Pod located outside of current workspace: \"#{package}\".
          To fix this, you can move the Pod into workspace,
          or you can symlink the Pod inside the workspace by running `ln -s <path_to_pod> .` at workspace root
          Then change path declared in Podfile to `./<pod_name>`
          Current workspace: #{workspace}
        MSG
      end

      build_file = build_files[package]

      targets_without_library_specification = pod_target.file_accessors.reject { |fa| fa.spec.library_specification? }.map do |fa|
        Target.new(
          installer,
          pod_target,
          fa.spec,
          default_xcconfigs,
          config.experimental_deps_debug_and_release
        )
      end

      default_target = Target.new(
        installer,
        pod_target,
        nil,
        default_xcconfigs,
        config.experimental_deps_debug_and_release
      )

      bazel_targets = [default_target] + targets_without_library_specification

      bazel_targets.each do |t|
        load = config.load_for(macro: t.type)
        build_file.add_load(of: load[:rule], from: load[:load])
        build_file.add_target StarlarkCompiler::AST::FunctionCall.new(load[:rule], **t.to_rule_kwargs)
      end
    end

    build_files.each_value(&:save!)
    format_files(build_files: build_files, buildifier: config.buildifier, workspace: workspace)
    unless config.build_file_doc.empty?
      build_files.each_key.each do |key|
        path = File.join(workspace, key, 'BUILD.bazel')
        content = File.read(path)
        File.write(path, "\"\"\"\n#{config.build_file_doc}\n\"\"\"\n\n" + content)
      end
    end

    cocoapods_bazel_path = File.join(sandbox.root, 'cocoapods-bazel')
    FileUtils.mkdir_p cocoapods_bazel_path

    write_cocoapods_bazel_build_file(cocoapods_bazel_path, workspace, config)
    write_non_empty_default_xcconfigs(cocoapods_bazel_path, default_xcconfigs)
  end
end

.write_cocoapods_bazel_build_file(path, workspace, config) ⇒ Object 



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# File 'lib/cocoapods/bazel.rb', line 86

def self.write_cocoapods_bazel_build_file(path, workspace, config)
  FileUtils.touch(File.join(path, 'BUILD.bazel'))

  cocoapods_bazel_pkg = Pathname.new(path).relative_path_from Pathname.new(workspace)
  configs_build_file = StarlarkCompiler::BuildFile.new(workspace: workspace, package: cocoapods_bazel_pkg)
  configs_build_file.add_load(of: 'string_flag', from: '@bazel_skylib//rules:common_settings.bzl')
  configs_build_file.add_target StarlarkCompiler::AST::FunctionCall.new('string_flag', name: 'config', build_setting_default: 'debug', visibility: ['//visibility:public'])
  configs_build_file.add_target StarlarkCompiler::AST::FunctionCall.new('config_setting', name: 'debug', flag_values: { ':config' => 'debug' }, visibility: ['//visibility:public'])
  configs_build_file.add_target StarlarkCompiler::AST::FunctionCall.new('config_setting', name: 'release', flag_values: { ':config' => 'release' }, visibility: ['//visibility:public'])

  if config.experimental_deps_debug_and_release
    configs_build_file.add_target StarlarkCompiler::AST::FunctionCall.new('string_flag', name: 'deps_config', build_setting_default: 'deps_debug', visibility: ['//visibility:public'])
    configs_build_file.add_target StarlarkCompiler::AST::FunctionCall.new(
      'config_setting', name: 'deps_debug', flag_values: { ':deps_config' => 'deps_debug' }, visibility: ['//visibility:public']
    )
    configs_build_file.add_target StarlarkCompiler::AST::FunctionCall.new(
      'config_setting', name: 'deps_release', flag_values: { ':deps_config' => 'deps_release' }, visibility: ['//visibility:public']
    )
    configs_build_file.add_target StarlarkCompiler::AST::FunctionCall.new(
      'config_setting', name: 'deps_debug_and_release', flag_values: { ':deps_config' => 'deps_debug_and_release' }, visibility: ['//visibility:public']
    )
  end

  configs_build_file.save!
  format_files(build_files: { cocoapods_bazel_pkg => configs_build_file }, buildifier: config.buildifier, workspace: workspace)
end

.write_non_empty_default_xcconfigs(path, default_xcconfigs) ⇒ Object 



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# File 'lib/cocoapods/bazel.rb', line 113

def self.write_non_empty_default_xcconfigs(path, default_xcconfigs)
  return if default_xcconfigs.empty?

  hash = StarlarkCompiler::AST.new(toplevel: [StarlarkCompiler::AST::Dictionary.new(default_xcconfigs)])

  File.open(File.join(path, 'default_xcconfigs.bzl'), 'w') do |f|
    f << <<~STARLARK
      """
      Default xcconfigs given as options to cocoapods-bazel.
      """

    STARLARK
    f << 'DEFAULT_XCCONFIGS = '
    StarlarkCompiler::Writer.write(ast: hash, io: f)
  end
end