66 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			66 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # typed: true
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| # frozen_string_literal: true
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| 
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| require "formula"
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| require "formula_versions"
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| require "search"
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| require "searchable"
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| 
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| # Helper class for printing and searching descriptions.
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| #
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| # @api private
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| class Descriptions
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|   extend Homebrew::Search
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| 
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|   # Given a regex, find all formulae whose specified fields contain a match.
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|   def self.search(string_or_regex, field, cache_store)
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|     cache_store.populate_if_empty!
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| 
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|     results = case field
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|     when :name
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|       cache_store.search(string_or_regex) { |name, _| name }
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|     when :desc
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|       cache_store.search(string_or_regex) { |_, desc| desc }
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|     when :either
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|       cache_store.search(string_or_regex)
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|     end
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| 
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|     new(results)
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|   end
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| 
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|   # Create an actual instance.
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|   def initialize(descriptions)
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|     @descriptions = descriptions
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|   end
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| 
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|   # Take search results -- a hash mapping formula names to descriptions -- and
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|   # print them.
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|   def print
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|     blank = Formatter.warning("[no description]")
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|     @descriptions.keys.sort.each do |full_name|
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|       short_name = short_names[full_name]
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|       printed_name = if short_name_counts[short_name] == 1
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|         short_name
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|       else
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|         full_name
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|       end
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|       description = @descriptions[full_name] || blank
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|       puts "#{Tty.bold}#{printed_name}:#{Tty.reset} #{description}"
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|     end
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|   end
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| 
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|   private
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| 
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|   def short_names
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|     @short_names ||= @descriptions.keys.map { |k| [k, k.split("/").last] }.to_h
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|   end
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| 
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|   def short_name_counts
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|     @short_name_counts ||=
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|       short_names.values
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|                  .each_with_object(Hash.new(0)) do |name, counts|
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|         counts[name] += 1
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|       end
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|   end
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| end
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