Class: Cask::Installer Private

Inherits:
Object show all
Extended by:
Utils::Output::Mixin
Includes:
OS::Linux::Cask::Installer, OS::Mac::Cask::Installer, Utils::Output::Mixin, Utils::Path
Defined in:
cask/installer.rb

Overview

This class is part of a private API. This class may only be used in the Homebrew/brew repository. Third parties should avoid using this class if possible, as it may be removed or changed without warning.

Installer for a Cask.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Utils::Output::Mixin

issue_reporting_message, odebug, odeprecated, odie, odisabled, ofail, oh1, oh1_title, ohai, ohai_title, onoe, opoo, opoo_outside_github_actions, opoo_without_github_actions_annotation, pretty_cannot_install, pretty_deprecated, pretty_disabled, pretty_duration, pretty_install_status, pretty_installed, pretty_uninstalled, pretty_unmarked, pretty_upgradable, pretty_warning

Methods included from Utils::Path

formula_installed_prefixes, formula_opt_bin_env, formula_opt_bin_path, install_info, loadable_package_path?, uninstall_info

Methods included from Utils::Path::Helpers

#child_of?, #cp_path_sub, #ensure_child_of!, #ensure_writable, #resolved_path, #resolved_path_exists?, #rmdir_if_possible, #text_executable?

Methods included from Utils::Path::FormulaHelpers

#formula_any_version_installed?, #formula_opt_bin, #formula_opt_include, #formula_opt_lib, #formula_opt_libexec, #formula_opt_prefix

Constructor Details

#initialize(cask, command: SystemCommand, force: false, adopt: false, skip_cask_deps: false, binaries: true, verbose: false, zap: false, require_sha: false, upgrade: false, reinstall: false, installed_on_request: true, verify_download_integrity: true, quiet: false, download_queue: Homebrew::DownloadQueue.default, defer_fetch: false, default_uninstall_artifacts: nil) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

  • cask (::Cask::Cask)
  • command (T.class_of(SystemCommand)) (defaults to: SystemCommand)
  • force (Boolean) (defaults to: false)
  • adopt (Boolean) (defaults to: false)
  • skip_cask_deps (Boolean) (defaults to: false)
  • binaries (Boolean) (defaults to: true)
  • verbose (Boolean) (defaults to: false)
  • zap (Boolean) (defaults to: false)
  • require_sha (Boolean) (defaults to: false)
  • upgrade (Boolean) (defaults to: false)
  • reinstall (Boolean) (defaults to: false)
  • installed_on_request (Boolean) (defaults to: true)
  • verify_download_integrity (Boolean) (defaults to: true)
  • quiet (Boolean) (defaults to: false)
  • download_queue (Homebrew::DownloadQueue) (defaults to: Homebrew::DownloadQueue.default)
  • defer_fetch (Boolean) (defaults to: false)
  • default_uninstall_artifacts (ArtifactSet, nil) (defaults to: nil) 


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# File 'cask/installer.rb', line 42

def initialize(cask, command: SystemCommand, force: false, adopt: false,
               skip_cask_deps: false, binaries: true, verbose: false,
               zap: false, require_sha: false, upgrade: false, reinstall: false,
               installed_on_request: true,
               verify_download_integrity: true, quiet: false,
               download_queue: Homebrew::DownloadQueue.default, defer_fetch: false,
               default_uninstall_artifacts: nil)
  @cask = cask
  @command = command
  @force = force
  @adopt = adopt
  @skip_cask_deps = skip_cask_deps
  @binaries = binaries
  @verbose = verbose
  @zap = zap
  @require_sha = require_sha
  @reinstall = reinstall
  @upgrade = upgrade
  @installed_on_request = installed_on_request
  @verify_download_integrity = verify_download_integrity
  @quiet = quiet
  @download_queue = download_queue
  @defer_fetch = defer_fetch
  # Restricts what `#uninstall` removes, for artifacts that are shared with a cask
  # which must be kept installed.
  @default_uninstall_artifacts = default_uninstall_artifacts
  @ran_prelude = T.let(false, T::Boolean)
  @cask_and_formula_dependencies = T.let(nil, T.nilable(T::Array[T.any(Formula, ::Cask::Cask)]))
  @dependency_cask_installers = T.let(nil, T.nilable(T::Array[Installer]))
  @dependency_formula_installers = T.let(nil, T.nilable(T::Array[FormulaInstaller]))
  @dependencies_enqueued = T.let(false, T::Boolean)
  @download_failed = T.let(false, T::Boolean)
  @installed_uninstall_artifacts_missing = T.let(false, T::Boolean)
end

Instance Attribute Details

#cask ⇒ ::Cask::Cask (readonly)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 30

def cask
  @cask
end

Class Method Details

.caveats(cask) ⇒ String?

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'cask/installer.rb', line 120

def self.caveats(cask)
  odebug "Printing caveats"

  caveats = record_caveats(cask)
  return unless caveats

  <<~EOS
    #{ohai_title "Caveats"}
    #{caveats}
  EOS
end

.record_caveats(cask) ⇒ String?

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:



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# File 'cask/installer.rb', line 133

def self.record_caveats(cask)
  caveats = cask.caveats
  return if caveats.empty?

  Homebrew.messages.record_caveats(cask.token, caveats)
  caveats
end

Instance Method Details

#adopt? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 78

def adopt? = @adopt

#artifacts ⇒ ArtifactSet

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 310

def artifacts
  @default_uninstall_artifacts || @cask.artifacts
end

#backup ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 663

def backup
  bp = backup_path
  raise "unexpected nil backup_path" unless bp

  bmp = backup_metadata_path
  raise "unexpected nil backup_metadata_path" unless bmp

  # The staged files may already be gone (e.g. an out-of-band cask update);
  # skip the rename rather than raising and aborting the upgrade.
  @cask.staged_path.rename bp.to_s if @cask.staged_path.exist?
  @cask.metadata_versioned_path.rename bmp.to_s if @cask.metadata_versioned_path.exist?
end

#backup_metadata_path ⇒ Pathname?

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 786

def backup_metadata_path
  return if @cask.metadata_versioned_path.nil?

  Pathname("#{@cask.metadata_versioned_path}.upgrading")
end

#backup_path ⇒ Pathname?

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 779

def backup_path
  return if @cask.staged_path.nil?

  Pathname("#{@cask.staged_path}.upgrading")
end

#binaries? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 81

def binaries? = @binaries

#cask_and_formula_dependencies ⇒ Array<Formula, ::Cask::Cask>

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

Raises:



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# File 'cask/installer.rb', line 437

def cask_and_formula_dependencies
  return @cask_and_formula_dependencies if @cask_and_formula_dependencies

  graph = ::Utils::TopologicalHash.graph_package_dependencies(@cask)

  raise CaskSelfReferencingDependencyError, @cask.token if graph.fetch(@cask).include?(@cask)

  pc = primary_container
  raise "unexpected nil primary_container" unless pc

  ::Utils::TopologicalHash.graph_package_dependencies(pc.dependencies, graph)

  @cask_and_formula_dependencies = graph.tsort_with_cycles do |cycles|
    cyclic_dependencies = cycles.sort_by(&:count).fetch(-1) - [@cask]
    raise CaskCyclicDependencyError.new(@cask.token, ::Utils::Text.to_sentence(cyclic_dependencies))
  end - [@cask]
end

#check_arch_requirements ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Raises:



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# File 'cask/installer.rb', line 420

def check_arch_requirements
  return if @cask.depends_on.arch.nil?

  @current_arch = T.let(@current_arch, T.nilable(T::Hash[Symbol, T.nilable(T.any(Symbol, Integer))]))
  @current_arch ||= { type: Hardware::CPU.type, bits: Hardware::CPU.bits }
  return if @cask.depends_on.arch.any? do |arch|
    arch[:type] == @current_arch[:type] &&
    Array(arch[:bits]).include?(@current_arch[:bits])
  end

  raise CaskError,
        "#{@cask}: This cask depends on hardware architecture being one of " \
        "[#{@cask.depends_on.arch.join(", ")}], " \
        "but you are running #{@current_arch}."
end

#check_conflicts ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 240

def check_conflicts
  return unless @cask.conflicts_with

  @cask.conflicts_with[:cask].each do |conflicting_cask|
    if (conflicting_cask_tap_with_token = Tap.with_cask_token(conflicting_cask))
      conflicting_cask_tap, = conflicting_cask_tap_with_token
      next unless conflicting_cask_tap.installed?
    end

    if (installed_caskfile = Caskroom.cask_installed_caskfile(conflicting_cask))
      raise CaskConflictError.new(
        @cask,
        ::Cask::Cask.new(CaskLoader.token_from_path(installed_caskfile)),
      )
    end

    conflicting_cask = CaskLoader.load(conflicting_cask)
    raise CaskConflictError.new(@cask, conflicting_cask) if conflicting_cask.installed?
  rescue CaskUnavailableError, Homebrew::UntrustedTapError
    next # Ignore conflicting Casks that are unavailable or untrusted.
  end
end

#check_deprecate_disable ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 223

def check_deprecate_disable
  deprecate_disable_type = DeprecateDisable.type(@cask)
  return if deprecate_disable_type.nil?

  message = DeprecateDisable.message(@cask).to_s
  message_full = "#{@cask.token} has been #{message}"

  case deprecate_disable_type
  when :deprecated
    opoo message_full
  when :disabled
    GitHub::Actions.puts_annotation_if_env_set!(:error, message)
    raise CaskCannotBeInstalledError.new(@cask, message)
  end
end

#check_macos_requirements ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Raises:



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# File 'cask/installer.rb', line 412

def check_macos_requirements
  macos_requirement = [@cask.depends_on.macos, @cask.depends_on.maximum_macos].compact.find { !it.satisfied? }
  return unless macos_requirement

  raise CaskError, "#{@cask}: #{macos_requirement.message(type: :cask)}"
end

#check_requirements ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 386

def check_requirements
  check_stanza_os_requirements
  check_supported_system
  check_macos_requirements
  check_arch_requirements
end

#check_stanza_os_requirements ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Raises:



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# File 'cask/installer.rb', line 394

def check_stanza_os_requirements
  return if @cask.supports_macos?

  raise CaskError, "#{@cask}: This cask requires Linux."
end

#check_supported_system ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Raises:



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# File 'cask/installer.rb', line 401

def check_supported_system
  # API data without an installable artifact means this system is unsupported.
  # Source loads keep working for unaudited casks, e.g. naked containers.
  return unless @cask.loaded_from_api?
  return if @cask.installable_artifact?

  os_name = Homebrew::SimulateSystem.simulating_or_running_on_macos? ? "macOS" : "Linux"
  raise CaskError, "#{@cask}: This cask is not available on #{os_name}."
end

#dependency_cask_installers ⇒ Array<Installer>

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 93

def dependency_cask_installers = @dependency_cask_installers || []

#dependency_installers(defer_fetch: false) ⇒ Array<(Array<Installer>, Array<FormulaInstaller>)>

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

  • defer_fetch (Boolean) (defaults to: false)

Returns:



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# File 'cask/installer.rb', line 530

def dependency_installers(defer_fetch: false)
  if @dependency_cask_installers && @dependency_formula_installers
    return [@dependency_cask_installers, @dependency_formula_installers]
  end

  cask_installers = T.let([], T::Array[Installer])
  formula_installers = T.let([], T::Array[FormulaInstaller])
  missing_cask_and_formula_dependencies.each do |cask_or_formula|
    if cask_or_formula.is_a?(Cask)
      next if skip_cask_deps?

      cask_installers << Installer.new(
        cask_or_formula,
        adopt:                adopt?,
        binaries:             binaries?,
        force:                false,
        installed_on_request: false,
        quiet:                quiet?,
        require_sha:          require_sha?,
        verbose:              verbose?,
        download_queue:       @download_queue,
        defer_fetch:,
      )
    else
      formula_installers << FormulaInstaller.new(
        cask_or_formula,
        **{
          show_header:          true,
          installed_on_request: false,
          verbose:              verbose?,
        }.compact,
      )
    end
  end

  @dependency_cask_installers = cask_installers
  @dependency_formula_installers = formula_installers
  [cask_installers, formula_installers]
end

#download(quiet: nil, timeout: nil) ⇒ Pathname

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

  • quiet (Boolean, nil) (defaults to: nil)
  • timeout (Integer, Float, nil) (defaults to: nil)

Returns:



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# File 'cask/installer.rb', line 296

def download(quiet: nil, timeout: nil)
  # Store cask download path in cask to prevent multiple downloads in a row when checking if it's outdated
  @cask.download ||= downloader.fetch(quiet:, verify_download_integrity: @verify_download_integrity,
                                      timeout:)
end

#download_failed! ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 90

def download_failed! = @download_failed = true

#download_failed? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 87

def download_failed? = @download_failed

#downloader ⇒ Download

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 281

def downloader
  @downloader ||= T.let(
    (if @cask.loaded_from_internal_api?
       Homebrew::API::CaskDownload.download(
         token:       @cask.token,
         cask_struct: Homebrew::API::Internal.cask_struct(@cask.token),
         languages:   @cask.config.languages,
         require_sha: require_sha? && !force?,
       )
    end) || Download.new(@cask, require_sha: require_sha? && !force?),
    T.nilable(Download),
  )
end

#enqueue_dependency_downloads ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 468

def enqueue_dependency_downloads
  return if download_failed? || !installed_on_request?

  cask_installers, formula_installers = dependency_installers(defer_fetch: true)
  if cask_installers.any?
    Homebrew::Install.enqueue_cask_installers(cask_installers)
  end
  if formula_installers.any?
    @dependency_formula_installers = Homebrew::Install.enqueue_formulae(formula_installers,
                                                                        download_queue: @download_queue)
  end
  @dependencies_enqueued = true
end

#enqueue_downloads ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 983

def enqueue_downloads
  prelude
  @download_queue.enqueue(downloader)
end

#extract_primary_container(to: @cask.staged_path) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:

  • to (Pathname) (defaults to: @cask.staged_path) 


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# File 'cask/installer.rb', line 315

def extract_primary_container(to: @cask.staged_path)
  download(quiet: true) if @cask.download.nil?

  downloader.extract_primary_container(to:, verbose: verbose?)
end

#fetch(quiet: nil, timeout: nil) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:

  • quiet (Boolean, nil) (defaults to: nil)
  • timeout (Integer, Float, nil) (defaults to: nil) 


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# File 'cask/installer.rb', line 142

def fetch(quiet: nil, timeout: nil)
  odebug "Cask::Installer#fetch"

  prelude

  download(quiet:, timeout:) unless @defer_fetch

  satisfy_cask_and_formula_dependencies
end

#finalize_upgrade ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 701

def finalize_upgrade
  ohai "Purging files for version #{@cask.version} of Cask #{@cask}"

  purge_backed_up_versioned_files

  puts summary
end

#forbidden_cask_and_formula_check ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 885

def forbidden_cask_and_formula_check
  forbid_casks = Homebrew::EnvConfig.forbid_casks?
  forbidden_formulae = Set.new(Homebrew::EnvConfig.forbidden_formulae.to_s.split)
  forbidden_casks = Set.new(Homebrew::EnvConfig.forbidden_casks.to_s.split)
  return if !forbid_casks && forbidden_formulae.blank? && forbidden_casks.blank?

  owner = Homebrew::EnvConfig.forbidden_owner
  owner_contact = if (contact = Homebrew::EnvConfig.forbidden_owner_contact.presence)
    "\n#{contact}"
  end

  cask_variable = if forbid_casks
    "HOMEBREW_FORBID_CASKS"
  elsif forbidden_casks.include?(@cask.token) || forbidden_casks.include?(@cask.full_name)
    "HOMEBREW_FORBIDDEN_CASKS"
  end

  if cask_variable
    raise CaskCannotBeInstalledError.new(@cask, <<~EOS
      forbidden for installation by #{owner} in `#{cask_variable}`.#{owner_contact}
    EOS
    )
  end

  return if skip_cask_deps?

  cask_and_formula_dependencies.each do |dep_cask_or_formula|
    dep_name, dep_type, variable = if dep_cask_or_formula.is_a?(Cask) && forbidden_casks.present?
      dep_cask = dep_cask_or_formula
      env_variable = "HOMEBREW_FORBIDDEN_CASKS"
      dep_cask_name = if forbidden_casks.include?(dep_cask.token)
        dep_cask.token
      elsif forbidden_casks.include?(dep_cask.full_name)
        dep_cask.full_name
      end
      [dep_cask_name, "cask", env_variable]
    elsif dep_cask_or_formula.is_a?(Formula) && forbidden_formulae.present?
      dep_formula = dep_cask_or_formula
      formula_name = if forbidden_formulae.include?(dep_formula.name)
        dep_formula.name
      elsif dep_formula.tap.present? &&
            forbidden_formulae.include?(dep_formula.full_name)
        dep_formula.full_name
      end
      [formula_name, "formula", "HOMEBREW_FORBIDDEN_FORMULAE"]
    end
    next if dep_name.blank?

    raise CaskCannotBeInstalledError.new(@cask, <<~EOS
      has a dependency #{dep_name} but the
      #{dep_name} #{dep_type} was forbidden for installation by #{owner} in `#{variable}`.#{owner_contact}
    EOS
    )
  end
end

#forbidden_cask_artifacts_check ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 942

def forbidden_cask_artifacts_check
  forbidden_artifacts = Set.new(Homebrew::EnvConfig.forbidden_cask_artifacts.to_s.split)
  return if forbidden_artifacts.blank?

  owner = Homebrew::EnvConfig.forbidden_owner
  owner_contact = if (contact = Homebrew::EnvConfig.forbidden_owner_contact.presence)
    "\n#{contact}"
  end

  artifacts.each do |artifact|
    # Get the artifact class name (e.g., "Pkg", "Installer", "App")
    artifact_name = artifact.class.name
    next if artifact_name.nil?

    artifact_type = artifact_name.split("::").last&.downcase
    next if artifact_type.nil?

    next unless forbidden_artifacts.include?(artifact_type)

    raise CaskCannotBeInstalledError.new(@cask, <<~EOS
      contains a '#{artifact_type}' artifact, which is forbidden for installation by #{owner} in `HOMEBREW_FORBIDDEN_CASK_ARTIFACTS`.#{owner_contact}
    EOS
    )
  end
end

#forbidden_tap_check ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 844

def forbidden_tap_check
  return if Tap.allowed_taps.blank? && Tap.forbidden_taps.blank?

  owner = Homebrew::EnvConfig.forbidden_owner
  owner_contact = if (contact = Homebrew::EnvConfig.forbidden_owner_contact.presence)
    "\n#{contact}"
  end

  # Check the cask itself before its dependencies, since dependency resolution
  # for casks triggers a download via `primary_container`.
  cask_tap = @cask.tap
  if cask_tap.present? && (!cask_tap.allowed_by_env? || cask_tap.forbidden_by_env?)
    cask_error_message = "The installation of #{@cask.full_name} has the tap #{cask_tap}\n" \
                         "but #{owner} "
    cask_error_message << "has not allowed this tap in `$HOMEBREW_ALLOWED_TAPS`" unless cask_tap.allowed_by_env?
    cask_error_message << " and\n" if !cask_tap.allowed_by_env? && cask_tap.forbidden_by_env?
    cask_error_message << "has forbidden this tap in `$HOMEBREW_FORBIDDEN_TAPS`" if cask_tap.forbidden_by_env?
    cask_error_message << ".#{owner_contact}"

    raise CaskCannotBeInstalledError.new(@cask, cask_error_message)
  end

  return if skip_cask_deps?

  cask_and_formula_dependencies.each do |cask_or_formula|
    dep_tap = cask_or_formula.tap
    next if dep_tap.blank? || (dep_tap.allowed_by_env? && !dep_tap.forbidden_by_env?)

    dep_full_name = cask_or_formula.full_name
    error_message = "The installation of #{@cask} has a dependency #{dep_full_name}\n" \
                    "from the #{dep_tap} tap but #{owner} "
    error_message << "has not allowed this tap in `$HOMEBREW_ALLOWED_TAPS`" unless dep_tap.allowed_by_env?
    error_message << " and\n" if !dep_tap.allowed_by_env? && dep_tap.forbidden_by_env?
    error_message << "has forbidden this tap in `$HOMEBREW_FORBIDDEN_TAPS`" if dep_tap.forbidden_by_env?
    error_message << ".#{owner_contact}"

    raise CaskCannotBeInstalledError.new(@cask, error_message)
  end
end

#force? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 84

def force? = @force

#gain_permissions_remove(path) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:



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# File 'cask/installer.rb', line 793

def gain_permissions_remove(path)
  Utils.gain_permissions_remove(path, command: @command)
end

#install ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 177

def install
  raise CaskError, "Download failed for #{@cask}." if download_failed?

  start_time = Time.now
  odebug "Cask::Installer#install"

  Migrator.migrate_if_needed(@cask)

  old_config = @cask.config
  predecessor = @cask if reinstall? && @cask.installed?

  prelude

  record_caveats
  fetch
  uninstall_existing_cask if reinstall?

  backup if force? && @cask.staged_path.exist? && @cask.metadata_versioned_path.exist?

  oh1 "Installing Cask #{Formatter.identifier(@cask)}"
  stage

  @cask.config = @cask.default_config.merge(old_config)

  install_artifacts(predecessor:)

  tab = Tab.create(@cask)
  tab.installed_on_request = installed_on_request?
  tab.write

  if (tap = @cask.tap) && tap.should_report_analytics?
    ::Utils::Analytics.report_package_event(:cask_install, package_name: @cask.token, tap_name: tap.name,
on_request: true)
  end

  purge_backed_up_versioned_files

  puts summary
  end_time = Time.now
  Homebrew.messages.package_installed(@cask.token, end_time - start_time)
rescue
  restore_backup
  raise
end

#install_artifacts(predecessor: nil) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:

  • predecessor (Cask, nil) (defaults to: nil) 


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# File 'cask/installer.rb', line 327

def install_artifacts(predecessor: nil)
  already_installed_artifacts = []

  odebug "Installing artifacts"

  artifacts.each do |artifact|
    next unless artifact.respond_to?(:install_phase)

    odebug "Installing artifact of class #{artifact.class}"

    next if artifact.is_a?(Artifact::Binary) && !binaries?

    artifact = T.cast(
      artifact,
      T.any(
        Artifact::AbstractFlightBlock,
        Artifact::GeneratedCompletion,
        Artifact::GeneratedScript,
        Artifact::Installer,
        Artifact::KeyboardLayout,
        Artifact::Mdimporter,
        Artifact::Moved,
        Artifact::PostflightSteps,
        Artifact::PreflightSteps,
        Artifact::Pkg,
        Artifact::Qlplugin,
        Artifact::Symlinked,
      ),
    )

    artifact.install_phase(
      command: @command, verbose: verbose?, adopt: adopt?, auto_updates: @cask.auto_updates,
      force: force?, predecessor:
    )
    already_installed_artifacts.unshift(artifact)
  end

  save_config_file
  save_download_sha if @cask.version.latest?
rescue => e
  begin
    already_installed_artifacts&.each do |artifact|
      if artifact.respond_to?(:uninstall_phase)
        odebug "Reverting installation of artifact of class #{artifact.class}"
        artifact.uninstall_phase(command: @command, verbose: verbose?, force: force?)
      end

      next unless artifact.respond_to?(:post_uninstall_phase)

      odebug "Reverting installation of artifact of class #{artifact.class}"
      artifact.post_uninstall_phase(command: @command, verbose: verbose?, force: force?)
    end
  ensure
    purge_versioned_files
    raise e
  end
end

#installed_on_request? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 96

def installed_on_request? = @installed_on_request

#load_installed_caskfile! ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

load the same cask file that was used for installation, if possible



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# File 'cask/installer.rb', line 990

def load_installed_caskfile!
  Migrator.migrate_if_needed(@cask)

  installed_caskfile = @cask.installed_caskfile
  @installed_uninstall_artifacts_missing = installed_caskfile.is_a?(Pathname) &&
                                           installed_uninstall_artifacts_missing?(installed_caskfile)

  return unless installed_caskfile&.exist?

  tab = CaskLoader.load_installed_tab(@cask)
  tap = tab.tap
  tap ||= @cask.tap
  if installed_caskfile.extname == ".rb" &&
     Homebrew::EnvConfig.require_tap_trust? &&
     tap &&
     !Homebrew::Trust.trusted?(:cask, "#{tap.name}/#{@cask.token}")
    opoo "Skipping loading untrusted Cask #{tap.name}/#{@cask.token}; uninstalling recorded artifacts only."

    dsl = DSL.new(@cask)
    default_uninstall_artifact_keys = DSL::ACTIVATABLE_ARTIFACT_CLASSES.filter_map do |klass|
      next if [Artifact::Uninstall, Artifact::Zap].include?(klass)
      next if !klass.method_defined?(:uninstall_phase) && !klass.method_defined?(:post_uninstall_phase)

      klass.dsl_key
    end.to_set
    Array(tab.uninstall_artifacts).each do |artifact_entry|
      next unless artifact_entry.is_a?(Hash)

      artifact_entry.each do |raw_key, raw_args|
        dsl_key = raw_key.to_sym
        next unless default_uninstall_artifact_keys.include?(dsl_key)

        args = Array(raw_args)
        if args.last.is_a?(Hash)
          dsl.public_send(
            dsl_key,
            *args[...-1],
            **T.cast(args.last, T::Hash[T.any(Symbol, String), T.anything]).transform_keys(&:to_sym),
          )
        else
          dsl.public_send(dsl_key, *args)
        end
      end
    end
    @default_uninstall_artifacts ||= dsl.artifacts
    return
  end

  begin
    @cask = CaskLoader.load_from_installed_caskfile(installed_caskfile)
    return
  rescue CaskInvalidError, CaskUnavailableError, MethodDeprecatedError
    # could be caused by trying to load outdated or deleted caskfile
  end

  recovered_cask = CaskLoader.recover_from_installed_caskfile(installed_caskfile, tab:, fallback_cask: @cask)
  # otherwise we default to the current cask
  @cask = recovered_cask if recovered_cask
end

#metadata_subdir ⇒ Pathname

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 576

def metadata_subdir
  @metadata_subdir ||= T.let(
    begin
      msd = @cask.metadata_subdir("Casks", timestamp: :now, create: true)
      raise "unexpected nil metadata_subdir" unless msd

      msd
    end,
    T.nilable(Pathname),
  )
end

#missing_cask_and_formula_dependencies ⇒ Array<Formula, ::Cask::Cask>

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 456

def missing_cask_and_formula_dependencies
  cask_and_formula_dependencies.reject do |cask_or_formula|
    case cask_or_formula
    when Formula
      cask_or_formula.any_version_installed? && cask_or_formula.optlinked?
    when Cask
      cask_or_formula.installed?
    end
  end
end

#prelude ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 969

def prelude
  return if @ran_prelude

  check_deprecate_disable
  check_conflicts
  check_requirements
  forbidden_tap_check
  forbidden_cask_and_formula_check
  forbidden_cask_artifacts_check

  @ran_prelude = true
end

#primary_container ⇒ UnpackStrategy

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 303

def primary_container
  download(quiet: true) if @cask.download.nil?

  downloader.primary_container
end

#process_rename_operations(target_dir: nil) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:

  • target_dir (Pathname, nil) (defaults to: nil) 


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# File 'cask/installer.rb', line 322

def process_rename_operations(target_dir: nil)
  downloader.process_rename_operations(target_dir: target_dir || @cask.staged_path)
end

#purge_backed_up_versioned_files ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 798

def purge_backed_up_versioned_files
  # versioned staged distribution
  backup = backup_path
  gain_permissions_remove(backup) if backup&.exist?

  # Cask metadata
  bmp = backup_metadata_path
  return unless bmp&.directory?

  bmp.children.each do |subdir|
    gain_permissions_remove(subdir)
  end
  rmdir_if_possible(bmp)
end

#purge_caskroom_path ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 837

def purge_caskroom_path
  odebug "Purging all staged versions of Cask #{@cask}"
  gain_permissions_remove(@cask.caskroom_path)
  remove_broken_caskroom_symlinks
end

#purge_versioned_files ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 814

def purge_versioned_files
  ohai "Purging files for version #{@cask.version} of Cask #{@cask}"

  # versioned staged distribution
  gain_permissions_remove(@cask.staged_path) if @cask.staged_path&.exist?

  # Cask metadata
  if @cask.metadata_versioned_path.directory?
    @cask.metadata_versioned_path.children.each do |subdir|
      gain_permissions_remove(subdir)
    end

    rmdir_if_possible(@cask.metadata_versioned_path)
  end
  rmdir_if_possible(@cask.metadata_main_container_path) unless upgrade?

  # toplevel staged distribution
  rmdir_if_possible(@cask.caskroom_path) unless upgrade?

  remove_broken_caskroom_symlinks
end

#quiet? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 99

def quiet? = @quiet

#record_caveats ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 571

def record_caveats
  self.class.record_caveats(@cask)
end

#reinstall? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 102

def reinstall? = @reinstall

#remove_config_file ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 645

def remove_config_file
  FileUtils.rm_f @cask.config_path
  rmdir_if_possible(@cask.config_path.parent)
end

#remove_download_sha ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 651

def remove_download_sha
  FileUtils.rm_f @cask.download_sha_path
  rmdir_if_possible(@cask.download_sha_path.parent)
end

#remove_tabfile ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 638

def remove_tabfile
  tabfile = @cask.tab.tabfile
  FileUtils.rm_f tabfile if tabfile
  rmdir_if_possible(@cask.config_path.parent)
end

#require_sha? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 105

def require_sha? = @require_sha

#restore_backup ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 677

def restore_backup
  bp = backup_path
  return unless bp

  bmp = backup_metadata_path
  return unless bmp

  return if !bp.directory? || !bmp.directory?

  FileUtils.rm_r(@cask.staged_path) if @cask.staged_path.exist?
  FileUtils.rm_r(@cask.metadata_versioned_path) if @cask.metadata_versioned_path.exist?

  bp.rename @cask.staged_path.to_s
  bmp.rename @cask.metadata_versioned_path.to_s
end

#revert_upgrade(predecessor:) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:

  • predecessor (Cask) 


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# File 'cask/installer.rb', line 694

def revert_upgrade(predecessor:)
  opoo "Reverting upgrade for Cask #{@cask}"
  restore_backup
  install_artifacts(predecessor:)
end

#satisfy_cask_and_formula_dependencies ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 483

def satisfy_cask_and_formula_dependencies
  return unless installed_on_request?

  formulae_and_casks = cask_and_formula_dependencies

  return if formulae_and_casks.empty?

  missing_formulae_and_casks = missing_cask_and_formula_dependencies

  if missing_formulae_and_casks.empty?
    puts "All dependencies satisfied."
    return
  end

  ohai "Installing dependencies: #{missing_formulae_and_casks.join(", ")}"
  if skip_cask_deps?
    missing_formulae_and_casks.grep(Cask).each do |dependency|
      opoo "`--skip-cask-deps` is set; skipping installation of #{dependency}."
    end
  end

  cask_installers, formula_installers = dependency_installers
  if (failed_installer = cask_installers.find(&:download_failed?))
    raise CaskError, "Dependency download failed for #{failed_installer.cask}."
  end

  cask_installers.reject { |installer| installer.cask.installed? }.each(&:install)
  return if formula_installers.blank?

  Homebrew::Install.perform_preinstall_checks_once
  valid_formula_installers = if @dependencies_enqueued
    Homebrew::Install.reject_failed_downloads(formula_installers, download_queue: @download_queue)
  else
    Homebrew::Install.fetch_formulae(formula_installers)
  end
  valid_formula_installers.each do |formula_installer|
    next if formula_installer.formula.any_version_installed? && formula_installer.formula.optlinked?

    formula_installer.install
    formula_installer.finish
  end
end

#save_caskfile ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 589

def save_caskfile
  old_savedir = @cask.metadata_timestamped_path

  return if @cask.source.blank?

  if @cask.uninstall_flight_blocks?
    (metadata_subdir/"#{@cask.token}.rb").write @cask.source.to_s
  else
    installed_json = @cask.to_installed_json_hash
    installed_json["artifacts"] = [] if @cask.artifacts_list(uninstall_only: true).empty?
    (metadata_subdir/"#{@cask.token}.json").write JSON.pretty_generate(installed_json)
  end

  FileUtils.rm_r(old_savedir) if old_savedir
end

#save_config_file ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 606

def save_config_file
  @cask.config_path.atomic_write(@cask.config.to_json)
end

#save_download_sha ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 611

def save_download_sha
  return unless @cask.checksumable?

  @cask.download_sha_path.atomic_write(@cask.new_download_sha)
end

#skip_cask_deps? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 108

def skip_cask_deps? = @skip_cask_deps

#stage ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 153

def stage
  odebug "Cask::Installer#stage"

  Caskroom.ensure_caskroom_exists

  queued_staged_path = downloader.staged_path_from_download_queue
  queued_staged_marker = downloader.staged_path_from_download_queue_marker
  if @defer_fetch && queued_staged_marker.exist? && !@cask.staged_path.exist?
    @cask.staged_path.dirname.mkpath
    FileUtils.mv(queued_staged_path, @cask.staged_path)
    downloader.purge_staged_from_download_queue(command: @command)
  else
    downloader.purge_staged_from_download_queue(command: @command) if @defer_fetch
    extract_primary_container
    process_rename_operations
  end
  save_caskfile
rescue => e
  downloader.purge_staged_from_download_queue(command: @command) if @defer_fetch
  purge_versioned_files
  raise e
end

#start_upgrade(successor:, quit: true) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:

  • successor (Cask, nil)
  • quit (Boolean) (defaults to: true) 


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# File 'cask/installer.rb', line 657

def start_upgrade(successor:, quit: true)
  uninstall_artifacts(successor:, quit:)
  backup
end

#summary ⇒ String

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'cask/installer.rb', line 273

def summary
  s = +""
  s << "#{Homebrew::EnvConfig.install_badge}  " unless Homebrew::EnvConfig.no_emoji?
  s << "#{@cask} was successfully #{upgrade? ? "upgraded" : "installed"}!"
  s.freeze
end

#uninstall(successor: nil) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:

  • successor (Cask, nil) (defaults to: nil) 


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# File 'cask/installer.rb', line 618

def uninstall(successor: nil)
  load_installed_caskfile!
  oh1 "Uninstalling Cask #{Formatter.identifier(@cask)}"
  if !reinstall? && !upgrade? && @installed_uninstall_artifacts_missing && artifacts.empty?
    opoo <<~EOS
      No uninstall artifact metadata is available for Cask '#{@cask}'.
      Homebrew will remove its records, but files installed by the Cask may remain.
    EOS
  end
  uninstall_artifacts(clear: true, successor:)
  if !reinstall? && !upgrade?
    remove_tabfile
    remove_download_sha
    remove_config_file
  end
  purge_versioned_files
  purge_caskroom_path if force?
end

#uninstall_artifacts(clear: false, successor: nil, quit: true) ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Parameters:

  • clear (Boolean) (defaults to: false)
  • successor (Cask, nil) (defaults to: nil)
  • quit (Boolean) (defaults to: true) 


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# File 'cask/installer.rb', line 710

def uninstall_artifacts(clear: false, successor: nil, quit: true)
  odebug "Uninstalling artifacts"
  odebug "#{::Utils.pluralize("artifact", artifacts.length, include_count: true)} defined", artifacts

  artifacts.each do |artifact|
    if artifact.respond_to?(:uninstall_phase)
      artifact = T.cast(
        artifact,
        T.any(
          Artifact::AbstractFlightBlock,
          Artifact::GeneratedCompletion,
          Artifact::KeyboardLayout,
          Artifact::Moved,
          Artifact::PostflightSteps,
          Artifact::PreflightSteps,
          Artifact::Qlplugin,
          Artifact::Symlinked,
          Artifact::Uninstall,
          Artifact::UninstallPostflightSteps,
          Artifact::UninstallPreflightSteps,
        ),
      )

      odebug "Uninstalling artifact of class #{artifact.class}"
      uninstall_options = {
        command:   @command,
        verbose:   verbose?,
        skip:      clear,
        force:     force?,
        successor:,
        upgrade:   upgrade?,
        reinstall: reinstall?,
      }
      uninstall_options[:quit] = quit if artifact.is_a?(Artifact::Uninstall)
      artifact.uninstall_phase(**uninstall_options)
    end

    next unless artifact.respond_to?(:post_uninstall_phase)

    artifact = T.cast(artifact, Artifact::Uninstall)

    odebug "Post-uninstalling artifact of class #{artifact.class}"
    artifact.post_uninstall_phase(
      command:   @command,
      verbose:   verbose?,
      skip:      clear,
      force:     force?,
      successor:,
    )
  end
end

#uninstall_existing_cask ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 264

def uninstall_existing_cask
  return unless @cask.installed?

  # Always force uninstallation, ignore method parameter
  cask_installer = Installer.new(@cask, verbose: verbose?, force: true, upgrade: upgrade?, reinstall: true)
  zap? ? cask_installer.zap : cask_installer.uninstall(successor: @cask)
end

#upgrade? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 111

def upgrade? = @upgrade

#verbose? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 114

def verbose? = @verbose

#zap ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.



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# File 'cask/installer.rb', line 763

def zap
  load_installed_caskfile!
  uninstall_artifacts
  if (zap_stanzas = @cask.artifacts.grep(Artifact::Zap)).empty?
    opoo "No zap stanza present for Cask '#{@cask}'"
  else
    ohai "Dispatching zap stanza"
    zap_stanzas.each do |stanza|
      stanza.zap_phase(command: @command, verbose: verbose?, force: force?)
    end
  end
  ohai "Removing all staged versions of Cask '#{@cask}'"
  purge_caskroom_path
end

#zap? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'cask/installer.rb', line 117

def zap? = @zap