Class: Homebrew::Cmd::Link Private

Inherits:
AbstractCommand show all
Defined in:
cmd/link.rb,
sorbet/rbi/dsl/homebrew/cmd/link.rbi

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.

Defined Under Namespace

Classes: Args

Instance Method Summary collapse

Methods inherited from AbstractCommand

command, command_name, dev_cmd?, #initialize, parser, #raise_sh_command_error!

Constructor Details

This class inherits a constructor from Homebrew::AbstractCommand

Instance Method Details

#argsHomebrew::Cmd::Link::Args

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.



10
# File 'sorbet/rbi/dsl/homebrew/cmd/link.rbi', line 10

def args; end

#runvoid

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

This method returns an undefined value.



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# File 'cmd/link.rb', line 31

def run
  options = {
    overwrite: args.overwrite?,
    dry_run:   args.dry_run?,
    verbose:   args.verbose?,
  }

  kegs = if args.HEAD?
    args.named.to_kegs.group_by(&:name).filter_map do |name, resolved_kegs|
      head_keg = resolved_kegs.find { |keg| keg.version.head? }
      next head_keg if head_keg.present?

      opoo <<~EOS
        No HEAD keg installed for #{name}
        To install, run:
          brew install --HEAD #{name}
      EOS

      nil
    end
  else
    args.named.to_latest_kegs
  end

  kegs.freeze.each do |keg|
    keg_only = Formulary.keg_only?(keg.rack)

    if keg.linked?
      opoo "Already linked: #{keg}"
      name_and_flag = "#{"--HEAD " if args.HEAD?}#{"--force " if keg_only}#{keg.name}"
      puts <<~EOS
        To relink, run:
          brew unlink #{keg.name} && brew link #{name_and_flag}
      EOS
      next
    end

    if args.dry_run?
      if args.overwrite?
        puts "Would remove:"
      else
        puts "Would link:"
      end
      keg.link(**options)
      puts_keg_only_path_message(keg) if keg_only
      next
    end

    formula = begin
      keg.to_formula
    rescue FormulaUnavailableError
      # Not all kegs may belong to formulae
      nil
    end

    if keg_only
      if HOMEBREW_PREFIX.to_s == HOMEBREW_DEFAULT_PREFIX && formula.present? &&
         formula.keg_only_reason.by_macos?
        caveats = Caveats.new(formula)
        opoo <<~EOS
          Refusing to link macOS provided/shadowed software: #{keg.name}
          #{caveats.keg_only_text(skip_reason: true).strip}
        EOS
        next
      end

      if !args.force? && (formula.blank? || !formula.keg_only_reason.versioned_formula?)
        opoo "#{keg.name} is keg-only and must be linked with `--force`."
        puts_keg_only_path_message(keg)
        next
      end
    end

    Unlink.unlink_versioned_formulae(formula, verbose: args.verbose?) if formula

    keg.lock do
      print "Linking #{keg}... "
      puts if args.verbose?

      begin
        n = keg.link(**options)
      rescue Keg::LinkError
        puts
        raise
      else
        puts "#{n} symlinks created."
      end

      puts_keg_only_path_message(keg) if keg_only && !Homebrew::EnvConfig.developer?
    end
  end
end