Class: Melon::Commands::Check

Inherits:
Base
  • Object
show all
Defined in:
lib/melon/commands/check.rb

Instance Attribute Summary

Attributes inherited from Base

#args, #description, #options

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

command_name, #initialize, #parse_options!, #parser, #usagebanner, #verify_args

Methods included from Helpers

#blockquote, #error, #expand_dir, #format_command, #recursively_expand, #resolve_symlinks, #wrap_text

Constructor Details

This class inherits a constructor from Melon::Commands::Base

Class Method Details

.description ⇒ Object 



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# File 'lib/melon/commands/check.rb', line 7

def self.description
  "Determine whether or not a copy of a file resides in the database"
end

Instance Method Details

#helptext ⇒ Object 



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# File 'lib/melon/commands/check.rb', line 11

def helptext
  "If the file's hash matches a hash in the database, nothing is\nprinted.  Otherwise, the full path to the file is printed.\n"
end

#parser_options(parser) ⇒ Object 



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# File 'lib/melon/commands/check.rb', line 22

def parser_options(parser)
  CommonOptions.recursive(parser, options)
  CommonOptions.preserve_symlinks(parser, options)
end

#run ⇒ Object 



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# File 'lib/melon/commands/check.rb', line 27

def run
  parse_options!

  if options.recursive
    self.args = recursively_expand(args)
  end

  options.database.transaction do
    args.each do |arg|
      filename = File.expand_path(arg)
      filename = resolve_symlinks(filename) unless options.preserve_symlinks

      if File.directory?(filename)
        error "argument is a directory: #{arg}"
      end

      hash = Hasher.digest(filename)
      unless options.database[:by_hash][hash]
        puts filename
      end
    end
  end
end

#usageargs ⇒ Object 



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# File 'lib/melon/commands/check.rb', line 18

def usageargs
  "FILE [FILE [FILE ...]]"
end