Class: Migrator Private
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.
Helper class for migrating a formula from an old to a new name.
Defined Under Namespace
Classes: MigrationNeededError, MigratorDifferentTapsError, MigratorNoOldpathError
Instance Attribute Summary collapse
-
#formula ⇒ Object
readonly
private
Instance of renamed formula.
-
#new_cellar ⇒ Object
readonly
private
Path to newname cellar according to new name.
-
#new_cellar_existed ⇒ Object
readonly
private
True if new cellar existed at initialization time.
-
#new_linked_keg_record ⇒ Object
readonly
private
Path to newname keg that will be linked if old_linked_keg isn’t nil.
-
#new_pin_record ⇒ Object
readonly
private
Path to newname pin.
-
#newname ⇒ Object
readonly
private
New name of the formula.
-
#old_cellar ⇒ Object
readonly
private
Path to oldname’s cellar.
-
#old_full_linked_kegs ⇒ Object
readonly
private
Oldname linked kegs that were fully linked.
-
#old_linked_kegs ⇒ Object
readonly
private
Oldname linked kegs.
-
#old_opt_records ⇒ Object
readonly
private
Path to oldname opt.
-
#old_pin_link_record ⇒ Object
readonly
private
Resolved path to oldname pin.
-
#old_pin_record ⇒ Object
readonly
private
Path to oldname pin.
-
#old_tabs ⇒ Object
readonly
private
Tabs from oldname kegs.
-
#old_tap ⇒ Object
readonly
private
Tap of the old name.
-
#oldname ⇒ Object
readonly
private
Old name of the formula.
Class Method Summary collapse
-
.migrate_if_needed(formula, force:, dry_run: false) ⇒ Object
private
-
.needs_migration?(formula) ⇒ Boolean
private
-
.oldnames_needing_migration(formula) ⇒ Object
private
Instance Method Summary collapse
-
#backup_old_tabs ⇒ Object
private
-
#backup_oldname ⇒ Object
private
Backup everything if errors occur while migrating.
-
#backup_oldname_cellar ⇒ Object
private
-
#fix_tabs ⇒ Object
private
Fix
INSTALL_RECEIPT
s for tap-migrated formula. -
#from_same_tap_user? ⇒ Boolean
private
-
#initialize(formula, oldname, force: false) ⇒ Migrator
constructor
private
A new instance of Migrator.
-
#link_newname ⇒ Object
private
-
#link_oldname_cellar ⇒ Object
private
Remove
Cellar/oldname
if it exists. -
#link_oldname_opt ⇒ Object
private
Link keg to opt if it was linked before migrating.
-
#linked_old_linked_kegs ⇒ Object
private
-
#lock ⇒ Object
private
-
#merge_directory(directory) ⇒ Object
private
-
#migrate ⇒ Object
private
-
#move_to_new_directory ⇒ Object
private
Move everything from
Cellar/oldname
toCellar/newname
. -
#pinned? ⇒ Boolean
private
-
#remove_conflicts(directory) ⇒ Object
private
-
#repin ⇒ Object
private
-
#unlink_newname ⇒ Object
private
-
#unlink_oldname ⇒ Object
private
-
#unlink_oldname_cellar ⇒ Object
private
Remove
Cellar/oldname
link if it belongs to newname. -
#unlink_oldname_opt ⇒ Object
private
Remove
opt/oldname
link if it belongs to newname. -
#unlock ⇒ Object
private
-
#update_tabs ⇒ Object
private
After migration every
INSTALL_RECEIPT.json
has the wrong path to the formula so we must updateINSTALL_RECEIPT
s.
Methods included from Context
current, current=, #debug?, #quiet?, #verbose?, #with_context
Constructor Details
#initialize(formula, oldname, force: false) ⇒ Migrator
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 Migrator.
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# File 'migrator.rb', line 125 def initialize(formula, oldname, force: false) @oldname = oldname @newname = formula.name @formula = formula @old_cellar = HOMEBREW_CELLAR/oldname raise MigratorNoOldpathError, oldname unless old_cellar.exist? @old_tabs = old_cellar.subdirs.map { |d| Tab.for_keg(Keg.new(d)) } @old_tap = old_tabs.first.tap raise MigratorDifferentTapsError.new(formula, oldname, old_tap) if !force && !from_same_tap_user? @new_cellar = HOMEBREW_CELLAR/formula.name @new_cellar_existed = @new_cellar.exist? @old_linked_kegs = linked_old_linked_kegs @old_full_linked_kegs = [] @old_opt_records = [] old_linked_kegs.each do |old_linked_keg| @old_full_linked_kegs << old_linked_keg if old_linked_keg.linked? @old_opt_records << old_linked_keg.opt_record if old_linked_keg.optlinked? end unless old_linked_kegs.empty? @new_linked_keg_record = HOMEBREW_CELLAR/"#{newname}/#{File.basename(old_linked_kegs.first)}" end @old_pin_record = HOMEBREW_PINNED_KEGS/oldname @new_pin_record = HOMEBREW_PINNED_KEGS/newname @pinned = old_pin_record.symlink? @old_pin_link_record = old_pin_record.readlink if @pinned end |
Instance Attribute Details
#formula ⇒ Object (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.
Instance of renamed formula.
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# File 'migrator.rb', line 49 def formula @formula end |
#new_cellar ⇒ Object (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.
Path to newname cellar according to new name.
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# File 'migrator.rb', line 82 def new_cellar @new_cellar end |
#new_cellar_existed ⇒ Object (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.
True if new cellar existed at initialization time.
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# File 'migrator.rb', line 85 def new_cellar_existed @new_cellar_existed end |
#new_linked_keg_record ⇒ Object (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.
Path to newname keg that will be linked if old_linked_keg isn’t nil.
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# File 'migrator.rb', line 91 def new_linked_keg_record @new_linked_keg_record end |
#new_pin_record ⇒ Object (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.
Path to newname pin.
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# File 'migrator.rb', line 88 def new_pin_record @new_pin_record end |
#newname ⇒ Object (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.
New name of the formula.
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# File 'migrator.rb', line 79 def newname @newname end |
#old_cellar ⇒ Object (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.
Path to oldname’s cellar.
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# File 'migrator.rb', line 55 def old_cellar @old_cellar end |
#old_full_linked_kegs ⇒ Object (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.
Oldname linked kegs that were fully linked.
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# File 'migrator.rb', line 67 def old_full_linked_kegs @old_full_linked_kegs end |
#old_linked_kegs ⇒ Object (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.
Oldname linked kegs.
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# File 'migrator.rb', line 64 def old_linked_kegs @old_linked_kegs end |
#old_opt_records ⇒ Object (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.
Path to oldname opt.
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# File 'migrator.rb', line 61 def old_opt_records @old_opt_records end |
#old_pin_link_record ⇒ Object (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.
Resolved path to oldname pin.
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# File 'migrator.rb', line 76 def old_pin_link_record @old_pin_link_record end |
#old_pin_record ⇒ Object (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.
Path to oldname pin.
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# File 'migrator.rb', line 58 def old_pin_record @old_pin_record end |
#old_tabs ⇒ Object (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.
Tabs from oldname kegs.
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# File 'migrator.rb', line 70 def old_tabs @old_tabs end |
#old_tap ⇒ Object (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.
Tap of the old name.
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# File 'migrator.rb', line 73 def old_tap @old_tap end |
#oldname ⇒ Object (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.
Old name of the formula.
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# File 'migrator.rb', line 52 def oldname @oldname end |
Class Method Details
.migrate_if_needed(formula, force:, dry_run: 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 'migrator.rb', line 107 def self.migrate_if_needed(formula, force:, dry_run: false) oldnames = Migrator.oldnames_needing_migration(formula) begin oldnames.each do |oldname| if dry_run oh1 "Would migrate formula #{Formatter.identifier(oldname)} to #{Formatter.identifier(formula.name)}" next end migrator = Migrator.new(formula, oldname, force: force) migrator.migrate end rescue => e onoe e end end |
.needs_migration?(formula) ⇒ 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.
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# File 'migrator.rb', line 103 def self.needs_migration?(formula) !oldnames_needing_migration(formula).empty? end |
.oldnames_needing_migration(formula) ⇒ 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 'migrator.rb', line 93 def self.oldnames_needing_migration(formula) formula.oldnames.select do |oldname| oldname_rack = HOMEBREW_CELLAR/oldname next false if oldname_rack.symlink? next false unless oldname_rack.directory? true end end |
Instance Method Details
#backup_old_tabs ⇒ 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 'migrator.rb', line 457 def backup_old_tabs old_tabs.each(&:write) end |
#backup_oldname ⇒ 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.
Backup everything if errors occur while migrating.
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# File 'migrator.rb', line 414 def backup_oldname unlink_oldname_opt unlink_oldname_cellar backup_oldname_cellar backup_old_tabs if pinned? && !old_pin_record.symlink? src_oldname = (old_pin_record.dirname/old_pin_link_record). old_pin_record.make_relative_symlink(src_oldname) new_pin_record.delete end if new_cellar.exist? new_cellar.subdirs.each do |d| newname_keg = Keg.new(d) newname_keg.unlink(verbose: verbose?) newname_keg.uninstall unless new_cellar_existed end end return if old_linked_kegs.empty? # The keg used to be linked and when we backup everything we restore # Cellar/oldname, the target also gets restored, so we are able to # create a keg using its old path old_full_linked_kegs.each do |old_linked_keg| old_linked_keg.link(verbose: verbose?) rescue Keg::LinkError old_linked_keg.unlink(verbose: verbose?) raise rescue Keg::AlreadyLinkedError old_linked_keg.unlink(verbose: verbose?) retry end (old_linked_kegs - old_full_linked_kegs).each do |old_linked_keg| old_linked_keg.optlink(verbose: verbose?) end end |
#backup_oldname_cellar ⇒ 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 'migrator.rb', line 453 def backup_oldname_cellar FileUtils.mv(new_cellar, old_cellar) unless old_cellar.exist? end |
#fix_tabs ⇒ 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.
Fix INSTALL_RECEIPT
s for tap-migrated formula.
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# File 'migrator.rb', line 159 def fix_tabs old_tabs.each do |tab| tab.tap = formula.tap tab.write end end |
#from_same_tap_user? ⇒ 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.
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# File 'migrator.rb', line 167 def from_same_tap_user? formula_tap_user = formula.tap.user if formula.tap old_tap_user = nil new_tap = if old_tap old_tap_user, = old_tap.user if (migrate_tap = old_tap.tap_migrations[oldname]) new_tap_user, new_tap_repo = migrate_tap.split("/") "#{new_tap_user}/#{new_tap_repo}" end end if formula_tap_user == old_tap_user true # Homebrew didn't use to update tabs while performing tap-migrations, # so there can be `INSTALL_RECEIPT`s containing wrong information about tap, # so we check if there is an entry about oldname migrated to tap and if # newname's tap is the same as tap to which oldname migrated, then we # can perform migrations and the taps for oldname and newname are the same. elsif formula.tap && old_tap && formula.tap == new_tap fix_tabs true else false end end |
#link_newname ⇒ 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 'migrator.rb', line 324 def link_newname oh1 "Relinking #{Formatter.identifier(newname)}" new_keg = Keg.new(new_linked_keg_record) # If old_keg wasn't linked then we just optlink a keg. # If old keg wasn't optlinked and linked, we don't call this method at all. # If formula is keg-only we also optlink it. if formula.keg_only? || old_full_linked_kegs.empty? begin new_keg.optlink(verbose: verbose?) rescue Keg::LinkError => e onoe "Failed to create #{formula.opt_prefix}" raise end return end new_keg.remove_linked_keg_record if new_keg.linked? begin new_keg.link(overwrite: true, verbose: verbose?) rescue Keg::ConflictError => e onoe "The `brew link` step did not complete successfully." puts e puts puts "Possible conflicting files are:" new_keg.link(dry_run: true, overwrite: true, verbose: verbose?) raise rescue Keg::LinkError => e onoe "The `brew link` step did not complete successfully." puts e puts puts "You can try again using:" puts " brew link #{formula.name}" rescue Exception => e # rubocop:disable Lint/RescueException onoe "An unexpected error occurred during linking" puts e puts Utils::Backtrace.clean(e) if debug? ignore_interrupts { new_keg.unlink(verbose: verbose?) } raise end end |
#link_oldname_cellar ⇒ 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.
Remove Cellar/oldname
if it exists.
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# File 'migrator.rb', line 400 def link_oldname_cellar old_cellar.delete if old_cellar.symlink? || old_cellar.exist? old_cellar.make_relative_symlink(formula.rack) end |
#link_oldname_opt ⇒ 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.
Link keg to opt if it was linked before migrating.
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# File 'migrator.rb', line 368 def link_oldname_opt old_opt_records.each do |old_opt_record| old_opt_record.delete if old_opt_record.symlink? old_opt_record.make_relative_symlink(new_linked_keg_record) end end |
#linked_old_linked_kegs ⇒ 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 'migrator.rb', line 194 def linked_old_linked_kegs keg_dirs = [] keg_dirs += new_cellar.subdirs if new_cellar.exist? keg_dirs += old_cellar.subdirs kegs = keg_dirs.map { |d| Keg.new(d) } kegs.select { |keg| keg.linked? || keg.optlinked? } end |
#lock ⇒ 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 'migrator.rb', line 461 def lock @newname_lock = FormulaLock.new newname @oldname_lock = FormulaLock.new oldname @newname_lock.lock @oldname_lock.lock end |
#merge_directory(directory) ⇒ 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 'migrator.rb', line 259 def merge_directory(directory) directory.each_child do |c| new_path = new_cellar/c.relative_path_from(old_cellar) if c.directory? && !c.symlink? && new_path.exist? merge_directory(c) c.unlink else FileUtils.mv(c, new_path) end end end |
#migrate ⇒ 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 'migrator.rb', line 206 def migrate oh1 "Migrating formula #{Formatter.identifier(oldname)} to #{Formatter.identifier(newname)}" lock unlink_oldname unlink_newname if new_cellar.exist? repin move_to_new_directory link_oldname_cellar link_oldname_opt link_newname unless old_linked_kegs.empty? update_tabs return unless formula.outdated? opoo <<~EOS #{Formatter.identifier(newname)} is outdated! To avoid broken installations, as soon as possible please run: brew upgrade Or, if you're OK with a less reliable fix: brew upgrade #{newname} EOS rescue Interrupt ignore_interrupts { backup_oldname } rescue Exception => e # rubocop:disable Lint/RescueException onoe "The migration did not complete successfully." puts e puts Utils::Backtrace.clean(e) if debug? puts "Backing up..." ignore_interrupts { backup_oldname } ensure unlock end |
#move_to_new_directory ⇒ 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.
Move everything from Cellar/oldname
to Cellar/newname
.
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# File 'migrator.rb', line 273 def move_to_new_directory return unless old_cellar.exist? if new_cellar.exist? conflicted = remove_conflicts(old_cellar) odie "Remove #{new_cellar} and #{old_cellar} manually and run `brew reinstall #{newname}`." if conflicted end oh1 "Moving #{Formatter.identifier(oldname)} versions to #{new_cellar}" if new_cellar.exist? merge_directory(old_cellar) else FileUtils.mv(old_cellar, new_cellar) end end |
#pinned? ⇒ 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.
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# File 'migrator.rb', line 202 def pinned? @pinned end |
#remove_conflicts(directory) ⇒ 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 'migrator.rb', line 238 def remove_conflicts(directory) conflicted = T.let(false, T::Boolean) directory.each_child do |c| if c.directory? && !c.symlink? conflicted ||= remove_conflicts(c) else next unless (new_cellar/c.relative_path_from(old_cellar)).exist? begin FileUtils.rm_rf c rescue Errno::EACCES conflicted = true onoe "#{new_cellar/c.basename} already exists." end end end conflicted end |
#repin ⇒ 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 'migrator.rb', line 289 def repin return unless pinned? # old_pin_record is a relative symlink and when we try to to read it # from <dir> we actually try to find file # <dir>/../<...>/../Cellar/name/version. # To repin formula we need to update the link thus that it points to # the right directory. # NOTE: old_pin_record.realpath.sub(oldname, newname) is unacceptable # here, because it resolves every symlink for old_pin_record and then # substitutes oldname with newname. It breaks things like # Pathname#make_relative_symlink, where Pathname#relative_path_from # is used to find relative path from source to destination parent and # it assumes no symlinks. src_oldname = (old_pin_record.dirname/old_pin_link_record). new_pin_record.make_relative_symlink(src_oldname.sub(oldname, newname)) old_pin_record.delete end |
#unlink_newname ⇒ 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 'migrator.rb', line 316 def unlink_newname oh1 "Temporarily unlinking #{Formatter.identifier(newname)}" new_cellar.subdirs.each do |d| keg = Keg.new(d) keg.unlink(verbose: verbose?) end end |
#unlink_oldname ⇒ 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 'migrator.rb', line 308 def unlink_oldname oh1 "Unlinking #{Formatter.identifier(oldname)}" old_cellar.subdirs.each do |d| keg = Keg.new(d) keg.unlink(verbose: verbose?) end end |
#unlink_oldname_cellar ⇒ 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.
Remove Cellar/oldname
link if it belongs to newname.
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# File 'migrator.rb', line 406 def unlink_oldname_cellar if (old_cellar.symlink? && !old_cellar.exist?) || (old_cellar.symlink? \ && formula.rack.exist? && formula.rack.realpath == old_cellar.realpath) old_cellar.unlink end end |
#unlink_oldname_opt ⇒ 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.
Remove opt/oldname
link if it belongs to newname.
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# File 'migrator.rb', line 386 def unlink_oldname_opt return unless new_linked_keg_record.exist? old_opt_records.each do |old_opt_record| next unless old_opt_record.symlink? next unless old_opt_record.exist? next if new_linked_keg_record.realpath != old_opt_record.realpath old_opt_record.unlink old_opt_record.parent.rmdir_if_possible end end |
#unlock ⇒ 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 'migrator.rb', line 468 def unlock @newname_lock.unlock @oldname_lock.unlock end |
#update_tabs ⇒ 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.
After migration every INSTALL_RECEIPT.json
has the wrong path to the formula
so we must update INSTALL_RECEIPT
s.
377 378 379 380 381 382 383 |
# File 'migrator.rb', line 377 def update_tabs new_tabs = new_cellar.subdirs.map { |d| Tab.for_keg(Keg.new(d)) } new_tabs.each do |tab| tab.source["path"] = formula.path.to_s if tab.source["path"] tab.write end end |