Class: Cask::Installer Private

Inherits:
Object
  • Object
show all
Extended by:
Predicable, T::Sig
Includes:
Staged
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.

Constant Summary

Constants included from Staged

Staged::Paths

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Predicable

attr_predicate

Methods included from Staged

#set_ownership, #set_permissions

Constructor Details

#initialize(cask, command: SystemCommand, force: false, skip_cask_deps: false, binaries: true, verbose: false, require_sha: false, upgrade: false, installed_as_dependency: false, quarantine: true, verify_download_integrity: true, quiet: false) ⇒ 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 a new instance of Installer.



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

def initialize(cask, command: SystemCommand, force: false,
               skip_cask_deps: false, binaries: true, verbose: false,
               require_sha: false, upgrade: false,
               installed_as_dependency: false, quarantine: true,
               verify_download_integrity: true, quiet: false)
  @cask = cask
  @command = command
  @force = force
  @skip_cask_deps = skip_cask_deps
  @binaries = binaries
  @verbose = verbose
  @require_sha = require_sha
  @reinstall = false
  @upgrade = upgrade
  @installed_as_dependency = installed_as_dependency
  @quarantine = quarantine
  @verify_download_integrity = verify_download_integrity
  @quiet = quiet
end

Class Method Details

.caveats(cask) ⇒ Object

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. 



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# File 'cask/installer.rb', line 54

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

  caveats = cask.caveats
  return if caveats.empty?

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

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

Instance Method Details

#arch_dependencies ⇒ Object

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.

Raises:



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# File 'cask/installer.rb', line 282

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

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

#backup ⇒ Object

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. 



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# File 'cask/installer.rb', line 409

def backup
  @cask.staged_path.rename backup_path
  @cask.metadata_versioned_path.rename backup_metadata_path
end

#backup_metadata_path ⇒ Object

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. 



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# File 'cask/installer.rb', line 482

def backup_metadata_path
  return if @cask.metadata_versioned_path.nil?

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

#backup_path ⇒ Object

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. 



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# File 'cask/installer.rb', line 476

def backup_path
  return if @cask.staged_path.nil?

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

#cask_and_formula_dependencies ⇒ Object

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. 



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# File 'cask/installer.rb', line 326

def cask_and_formula_dependencies
  return if installed_as_dependency?

  formulae_and_casks = collect_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 formula dependencies satisfied."
    return
  end

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

      Installer.new(
        cask_or_formula,
        binaries:                binaries?,
        verbose:                 verbose?,
        installed_as_dependency: true,
        force:                   false,
      ).install
    else
      fi = FormulaInstaller.new(
        cask_or_formula,
        **{
          show_header:             true,
          installed_as_dependency: true,
          installed_on_request:    false,
          verbose:                 verbose?,
        }.compact,
      )
      fi.prelude
      fi.fetch
      fi.install
      fi.finish
    end
  end
end

#caveats ⇒ Object

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. 



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# File 'cask/installer.rb', line 373

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

#check_conflicts ⇒ Object

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. 



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# File 'cask/installer.rb', line 130

def check_conflicts
  return unless @cask.conflicts_with

  @cask.conflicts_with[:cask].each do |conflicting_cask|
    if (match = conflicting_cask.match(HOMEBREW_TAP_CASK_REGEX))
      conflicting_cask_tap = Tap.fetch(match[1], match[2])
      next unless conflicting_cask_tap.installed?
    end

    conflicting_cask = CaskLoader.load(conflicting_cask)
    raise CaskConflictError.new(@cask, conflicting_cask) if conflicting_cask.installed?
  rescue CaskUnavailableError
    next # Ignore conflicting Casks that do not exist.
  end
end

#collect_cask_and_formula_dependencies ⇒ Object

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.

Raises:



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# File 'cask/installer.rb', line 297

def collect_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[@cask].include?(@cask)

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

  begin
    @cask_and_formula_dependencies = graph.tsort - [@cask]
  rescue TSort::Cyclic
    strongly_connected_components = graph.strongly_connected_components.sort_by(&:count)
    cyclic_dependencies = strongly_connected_components.last - [@cask]
    raise CaskCyclicDependencyError.new(@cask.token, cyclic_dependencies.to_sentence)
  end
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 177

def download(quiet: nil, timeout: nil)
  @download ||= downloader.fetch(quiet: quiet, verify_download_integrity: @verify_download_integrity,
                                 timeout: timeout)
end

#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 172

def downloader
  @downloader ||= Download.new(@cask, quarantine: quarantine?)
end

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

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. 



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# File 'cask/installer.rb', line 199

def extract_primary_container(to: @cask.staged_path)
  odebug "Extracting primary container"

  odebug "Using container class #{primary_container.class} for #{primary_container.path}"

  basename = downloader.basename

  if (nested_container = @cask.container&.nested)
    Dir.mktmpdir do |tmpdir|
      tmpdir = Pathname(tmpdir)
      primary_container.extract(to: tmpdir, basename: basename, verbose: verbose?)

      FileUtils.chmod_R "+rw", tmpdir/nested_container, force: true, verbose: verbose?

      UnpackStrategy.detect(tmpdir/nested_container, merge_xattrs: true)
                    .extract_nestedly(to: to, verbose: verbose?)
    end
  else
    primary_container.extract_nestedly(to: to, basename: basename, verbose: verbose?)
  end

  return unless quarantine?
  return unless Quarantine.available?

  Quarantine.propagate(from: primary_container.path, to: to)
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 69

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

  verify_has_sha if require_sha? && !force?

  download(quiet: quiet, timeout: timeout)

  satisfy_dependencies
end

#finalize_upgrade ⇒ Object

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. 



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# File 'cask/installer.rb', line 430

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

  purge_backed_up_versioned_files

  puts summary
end

#gain_permissions_remove(path) ⇒ Object

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. 



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# File 'cask/installer.rb', line 488

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

#install ⇒ Object

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. 



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# File 'cask/installer.rb', line 91

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

  old_config = @cask.config
  if @cask.installed? && !force? && !reinstall? && !upgrade?
    return if quiet?

    raise CaskAlreadyInstalledError, @cask
  end

  check_conflicts

  print 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)}"
  opoo "macOS's Gatekeeper has been disabled for this Cask" unless quarantine?
  stage

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

  install_artifacts

  ::Utils::Analytics.report_event("cask_install", @cask.token) unless @cask.tap&.private?

  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 ⇒ Object

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. 



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# File 'cask/installer.rb', line 226

def install_artifacts
  artifacts = @cask.artifacts
  already_installed_artifacts = []

  odebug "Installing artifacts"
  odebug "#{artifacts.length} #{"artifact".pluralize(artifacts.length)} defined", 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.install_phase(command: @command, verbose: verbose?, force: force?)
    already_installed_artifacts.unshift(artifact)
  end

  save_config_file
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

#macos_dependencies ⇒ Object

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.

Raises:



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# File 'cask/installer.rb', line 275

def macos_dependencies
  return unless @cask.depends_on.macos
  return if @cask.depends_on.macos.satisfied?

  raise CaskError, @cask.depends_on.macos.message(type: :cask)
end

#missing_cask_and_formula_dependencies ⇒ Object

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. 



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

def missing_cask_and_formula_dependencies
  collect_cask_and_formula_dependencies.reject do |cask_or_formula|
    installed = if cask_or_formula.respond_to?(:any_version_installed?)
      cask_or_formula.any_version_installed?
    else
      cask_or_formula.try(:installed?)
    end
    installed && (cask_or_formula.respond_to?(:optlinked?) ? cask_or_formula.optlinked? : true)
  end
end

#primary_container ⇒ Object

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. 



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# File 'cask/installer.rb', line 192

def primary_container
  @primary_container ||= begin
    downloaded_path = download(quiet: true)
    UnpackStrategy.detect(downloaded_path, type: @cask.container&.type, merge_xattrs: true)
  end
end

#purge_backed_up_versioned_files ⇒ Object

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. 



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# File 'cask/installer.rb', line 492

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

  # Homebrew Cask metadata
  return unless backup_metadata_path.directory?

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

#purge_caskroom_path ⇒ Object

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. 



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# File 'cask/installer.rb', line 525

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

#purge_versioned_files ⇒ Object

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. 



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# File 'cask/installer.rb', line 505

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?

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

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

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

#reinstall ⇒ Object

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. 



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# File 'cask/installer.rb', line 146

def reinstall
  odebug "Cask::Installer#reinstall"
  @reinstall = true
  install
end

#remove_config_file ⇒ Object

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. 



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# File 'cask/installer.rb', line 399

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

#restore_backup ⇒ Object

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. 



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# File 'cask/installer.rb', line 414

def restore_backup
  return if !backup_path.directory? || !backup_metadata_path.directory?

  Pathname.new(@cask.staged_path).rmtree if @cask.staged_path.exist?
  Pathname.new(@cask.metadata_versioned_path).rmtree if @cask.metadata_versioned_path.exist?

  backup_path.rename @cask.staged_path
  backup_metadata_path.rename @cask.metadata_versioned_path
end

#revert_upgrade ⇒ Object

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. 



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# File 'cask/installer.rb', line 424

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

#satisfy_dependencies ⇒ Object

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. 



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# File 'cask/installer.rb', line 267

def satisfy_dependencies
  return unless @cask.depends_on

  macos_dependencies
  arch_dependencies
  cask_and_formula_dependencies
end

#save_caskfile ⇒ Object

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. 



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# File 'cask/installer.rb', line 377

def save_caskfile
  old_savedir = @cask.metadata_timestamped_path

  return if @cask.source.blank?

  savedir = @cask.metadata_subdir("Casks", timestamp: :now, create: true)
  (savedir/"#{@cask.token}.rb").write @cask.source
  old_savedir&.rmtree
end

#save_config_file ⇒ Object

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. 



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# File 'cask/installer.rb', line 387

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

#stage ⇒ Object

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. 



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# File 'cask/installer.rb', line 79

def stage
  odebug "Cask::Installer#stage"

  Caskroom.ensure_caskroom_exists

  extract_primary_container
  save_caskfile
rescue => e
  purge_versioned_files
  raise e
end

#start_upgrade ⇒ Object

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. 



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# File 'cask/installer.rb', line 404

def start_upgrade
  uninstall_artifacts
  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 164

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

#uninstall ⇒ Object

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. 



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# File 'cask/installer.rb', line 391

def uninstall
  oh1 "Uninstalling Cask #{Formatter.identifier(@cask)}"
  uninstall_artifacts(clear: true)
  remove_config_file if !reinstall? && !upgrade?
  purge_versioned_files
  purge_caskroom_path if force?
end

#uninstall_artifacts(clear: false) ⇒ Object

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. 



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# File 'cask/installer.rb', line 438

def uninstall_artifacts(clear: false)
  artifacts = @cask.artifacts

  odebug "Uninstalling artifacts"
  odebug "#{artifacts.length} #{"artifact".pluralize(artifacts.length)} defined", artifacts

  artifacts.each do |artifact|
    if artifact.respond_to?(:uninstall_phase)
      odebug "Uninstalling artifact of class #{artifact.class}"
      artifact.uninstall_phase(
        command: @command, verbose: verbose?, skip: clear, force: force?, upgrade: upgrade?,
      )
    end

    next unless artifact.respond_to?(:post_uninstall_phase)

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

#uninstall_existing_cask ⇒ Object

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. 



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# File 'cask/installer.rb', line 152

def uninstall_existing_cask
  return unless @cask.installed?

  # use the same cask file that was used for installation, if possible
  installed_caskfile = @cask.installed_caskfile
  installed_cask = installed_caskfile.exist? ? CaskLoader.load(installed_caskfile) : @cask

  # Always force uninstallation, ignore method parameter
  Installer.new(installed_cask, verbose: verbose?, force: true, upgrade: upgrade?).uninstall
end

#verify_has_sha ⇒ Object

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.

Raises:



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# File 'cask/installer.rb', line 182

def verify_has_sha
  odebug "Checking cask has checksum"
  return unless @cask.sha256 == :no_check

  raise CaskError, <<~EOS
    Cask '#{@cask}' does not have a sha256 checksum defined and was not installed.
    This means you have the #{Formatter.identifier("--require-sha")} option set, perhaps in your HOMEBREW_CASK_OPTS.
  EOS
end

#zap ⇒ Object

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. 



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# File 'cask/installer.rb', line 461

def zap
  ohai "Implied `brew uninstall --cask #{@cask}`"
  uninstall_artifacts
  if (zap_stanzas = @cask.artifacts.select { |a| a.is_a?(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