159 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			159 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| #:  * `uninstall`, `rm`, `remove` [`--force`] [`--ignore-dependencies`] <formula>:
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| #:    Uninstall <formula>.
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| #:
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| #:    If `--force` (or `-f`) is passed, and there are multiple versions of <formula>
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| #:    installed, delete all installed versions.
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| #:
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| #:    If `--ignore-dependencies` is passed, uninstalling won't fail, even if
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| #:    formulae depending on <formula> would still be installed.
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| 
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| require "keg"
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| require "formula"
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| require "diagnostic"
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| require "migrator"
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| 
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| module Homebrew
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|   module_function
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| 
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|   def uninstall
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|     raise KegUnspecifiedError if ARGV.named.empty?
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| 
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|     kegs_by_rack = if ARGV.force?
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|       Hash[ARGV.named.map do |name|
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|         rack = Formulary.to_rack(name)
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|         next unless rack.directory?
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|         [rack, rack.subdirs.map { |d| Keg.new(d) }]
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|       end]
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|     else
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|       ARGV.kegs.group_by(&:rack)
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|     end
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| 
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|     handle_unsatisfied_dependents(kegs_by_rack)
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|     return if Homebrew.failed?
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| 
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|     kegs_by_rack.each do |rack, kegs|
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|       if ARGV.force?
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|         name = rack.basename
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| 
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|         if rack.directory?
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|           puts "Uninstalling #{name}... (#{rack.abv})"
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|           kegs.each do |keg|
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|             keg.unlink
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|             keg.uninstall
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|           end
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|         end
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| 
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|         rm_pin rack
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|       else
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|         kegs.each do |keg|
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|           keg.lock do
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|             puts "Uninstalling #{keg}... (#{keg.abv})"
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|             keg.unlink
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|             keg.uninstall
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|             rack = keg.rack
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|             rm_pin rack
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| 
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|             if rack.directory?
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|               versions = rack.subdirs.map(&:basename)
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|               verb = Formatter.pluralize(versions.length, "is", "are")
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|               puts "#{keg.name} #{versions.join(", ")} #{verb} still installed."
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|               puts "Remove all versions with `brew uninstall --force #{keg.name}`."
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|             end
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|           end
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|         end
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|       end
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|     end
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|   rescue MultipleVersionsInstalledError => e
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|     ofail e
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|     puts "Use `brew uninstall --force #{e.name}` to remove all versions."
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|   ensure
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|     # If we delete Cellar/newname, then Cellar/oldname symlink
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|     # can become broken and we have to remove it.
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|     if HOMEBREW_CELLAR.directory?
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|       HOMEBREW_CELLAR.children.each do |rack|
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|         rack.unlink if rack.symlink? && !rack.resolved_path_exists?
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|       end
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|     end
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|   end
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| 
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|   def handle_unsatisfied_dependents(kegs_by_rack)
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|     return if ARGV.include?("--ignore-dependencies")
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| 
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|     all_kegs = kegs_by_rack.values.flatten(1)
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|     check_for_dependents all_kegs
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|   rescue MethodDeprecatedError
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|     # Silently ignore deprecations when uninstalling.
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|     nil
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|   end
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| 
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|   def check_for_dependents(kegs)
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|     return false unless result = Keg.find_some_installed_dependents(kegs)
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| 
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|     if ARGV.homebrew_developer?
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|       DeveloperDependentsMessage.new(*result).output
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|     else
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|       NondeveloperDependentsMessage.new(*result).output
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|     end
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| 
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|     true
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|   end
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| 
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|   class DependentsMessage
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|     attr_reader :reqs, :deps
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| 
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|     def initialize(requireds, dependents)
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|       @reqs = requireds
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|       @deps = dependents
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|     end
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| 
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|     protected
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| 
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|     def are(items)
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|       Formatter.pluralize(items.count, "is", "are", show_count: false)
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|     end
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| 
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|     def they(items)
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|       Formatter.pluralize(items.count, "it", "they", show_count: false)
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|     end
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| 
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|     def list(items)
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|       items.join(", ")
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|     end
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| 
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|     def sample_command
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|       "brew uninstall --ignore-dependencies #{ARGV.named.join(" ")}"
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|     end
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| 
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|     def are_required_by_deps
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|       "#{are reqs} required by #{list deps}, which #{are deps} currently installed"
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|     end
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|   end
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| 
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|   class DeveloperDependentsMessage < DependentsMessage
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|     def output
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|       opoo <<-EOS.undent
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|         #{list reqs} #{are_required_by_deps}.
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|         You can silence this warning with:
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|           #{sample_command}
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|       EOS
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|     end
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|   end
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| 
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|   class NondeveloperDependentsMessage < DependentsMessage
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|     def output
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|       ofail <<-EOS.undent
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|         Refusing to uninstall #{list reqs}
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|         because #{they reqs} #{are_required_by_deps}.
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|         You can override this and force removal with:
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|           #{sample_command}
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|       EOS
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|     end
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|   end
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| 
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|   def rm_pin(rack)
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|     Formulary.from_rack(rack).unpin
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|   rescue
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|     nil
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|   end
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| end
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