Class: Cask::Installer Private

Inherits:
Object
  • Object
show all
Extended by:
Predicable
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.

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Predicable

attr_predicate

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, 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.



23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
# File 'cask/installer.rb', line 23

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



49
50
51
52
53
54
55
56
57
58
59
60
61
# File 'cask/installer.rb', line 49

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_dependenciesObject

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:



284
285
286
287
288
289
290
291
292
293
294
295
296
297
# File 'cask/installer.rb', line 284

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

#backupObject

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.



427
428
429
430
# File 'cask/installer.rb', line 427

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

#backup_metadata_pathObject

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.



500
501
502
503
504
# File 'cask/installer.rb', line 500

def 
  return if @cask..nil?

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

#backup_pathObject

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.



494
495
496
497
498
# File 'cask/installer.rb', line 494

def backup_path
  return if @cask.staged_path.nil?

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

#cask_and_formula_dependenciesObject

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.



328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
# File 'cask/installer.rb', line 328

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,
        adopt:                   adopt?,
        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

#caveatsObject

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.



376
377
378
# File 'cask/installer.rb', line 376

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

#check_conflictsObject

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.



125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
# File 'cask/installer.rb', line 125

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_dependenciesObject

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.



299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
# File 'cask/installer.rb', line 299

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:



177
178
179
180
181
# File 'cask/installer.rb', line 177

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: quiet, verify_download_integrity: @verify_download_integrity,
                                      timeout: timeout)
end

#downloaderDownload

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:



172
173
174
# 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.



200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
# File 'cask/installer.rb', line 200

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)


64
65
66
67
68
69
70
71
72
# File 'cask/installer.rb', line 64

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_upgradeObject

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.



448
449
450
451
452
453
454
# File 'cask/installer.rb', line 448

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.



506
507
508
# File 'cask/installer.rb', line 506

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

#installObject

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.



86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
# File 'cask/installer.rb', line 86

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..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, on_request: true) 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_artifactsObject

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.



227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
# File 'cask/installer.rb', line 227

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?, adopt: adopt?, force: force?)
    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

#macos_dependenciesObject

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:



277
278
279
280
281
282
# File 'cask/installer.rb', line 277

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

#metadata_subdirObject

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.



380
381
382
# File 'cask/installer.rb', line 380

def 
  @metadata_subdir ||= @cask.("Casks", timestamp: :now, create: true)
end

#missing_cask_and_formula_dependenciesObject

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.



317
318
319
320
321
322
323
324
325
326
# File 'cask/installer.rb', line 317

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_containerObject

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.



193
194
195
196
197
198
# File 'cask/installer.rb', line 193

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_filesObject

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.



510
511
512
513
514
515
516
517
518
519
520
521
# File 'cask/installer.rb', line 510

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

  # Homebrew Cask metadata
  return unless .directory?

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

#purge_caskroom_pathObject

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.



543
544
545
546
# File 'cask/installer.rb', line 543

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

#purge_versioned_filesObject

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.



523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
# File 'cask/installer.rb', line 523

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..directory?
    @cask..children.each do |subdir|
      gain_permissions_remove(subdir)
    end

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

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

#reinstallObject

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.



141
142
143
144
145
# File 'cask/installer.rb', line 141

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

#remove_config_fileObject

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.



413
414
415
416
# File 'cask/installer.rb', line 413

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

#remove_download_shaObject

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.



418
419
420
# File 'cask/installer.rb', line 418

def remove_download_sha
  FileUtils.rm_f @cask.download_sha_path if @cask.download_sha_path.exist?
end

#restore_backupObject

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.



432
433
434
435
436
437
438
439
440
# File 'cask/installer.rb', line 432

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

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

  backup_path.rename @cask.staged_path
  .rename @cask.
end

#revert_upgradeObject

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.



442
443
444
445
446
# File 'cask/installer.rb', line 442

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

#satisfy_dependenciesObject

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.



269
270
271
272
273
274
275
# File 'cask/installer.rb', line 269

def satisfy_dependencies
  return unless @cask.depends_on

  macos_dependencies
  arch_dependencies
  cask_and_formula_dependencies
end

#save_caskfileObject

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.



384
385
386
387
388
389
390
391
# File 'cask/installer.rb', line 384

def save_caskfile
  old_savedir = @cask.

  return if @cask.source.blank?

  (/"#{@cask.token}.rb").write @cask.source
  old_savedir&.rmtree
end

#save_config_fileObject

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.



393
394
395
396
# File 'cask/installer.rb', line 393

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

#save_download_shaObject

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.



398
399
400
# File 'cask/installer.rb', line 398

def save_download_sha
  @cask.download_sha_path.atomic_write(@cask.new_download_sha) if @cask.checksumable?
end

#stageObject

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.



74
75
76
77
78
79
80
81
82
83
84
# File 'cask/installer.rb', line 74

def stage
  odebug "Cask::Installer#stage"

  Caskroom.ensure_caskroom_exists

  extract_primary_container
  save_caskfile
rescue => e
  purge_versioned_files
  raise e
end

#start_upgradeObject

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.



422
423
424
425
# File 'cask/installer.rb', line 422

def start_upgrade
  uninstall_artifacts
  backup
end

#summaryString

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:



164
165
166
167
168
169
# 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

#uninstallObject

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.



402
403
404
405
406
407
408
409
410
411
# File 'cask/installer.rb', line 402

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



456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
# File 'cask/installer.rb', line 456

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_caskObject

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.



147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
# File 'cask/installer.rb', line 147

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 = begin
    installed_caskfile.exist? ? CaskLoader.load(installed_caskfile) : @cask
  rescue CaskInvalidError # could be thrown by call to CaskLoader#load with outdated caskfile
    @cask # default
  end

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

#verify_has_shaObject

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:



183
184
185
186
187
188
189
190
191
# File 'cask/installer.rb', line 183

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

#zapObject

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.



479
480
481
482
483
484
485
486
487
488
489
490
491
492
# File 'cask/installer.rb', line 479

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