Class: Fixi::Command::Check

Inherits:
Object
  • Object
show all
Defined in:
lib/fixi/command/check.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.arghelp ⇒ Object 



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# File 'lib/fixi/command/check.rb', line 8

def self.arghelp
  "[<dir>|<file>]"
end

.details ⇒ Object 



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# File 'lib/fixi/command/check.rb', line 12

def self.details
  "If no argument is given, the current directory ('.') is assumed."
end

.synopsis ⇒ Object 



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# File 'lib/fixi/command/check.rb', line 4

def self.synopsis
  "Verify the fixity of files in the index"
end

Instance Method Details

#execute(args) ⇒ Object 



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# File 'lib/fixi/command/check.rb', line 16

def execute args
  opts = Trollop::options args do
    banner Fixi::Command.banner "check"
    opt :absolute, "Show absolute paths. By default, paths are reported
      relative to the index root.".pack
    opt :algorithms, "Checksum algorithm(s) to use if shallow isn't specified.
      This is a comma-separated list, which may include md5, sha1, sha256, sha384,
      sha512, and must be a subset of the indexed algorithms. If unspecified,
      defaults to all indexed algorithms.".pack, :short => 'l', :type => :string
    opt :shallow, "Do shallow comparisons when determining which files have
      changed. If specified, only file sizes and mtimes will be used. By 
      default, checksums will also be computed and compared if necessary.".pack
    opt :verbose, "For modified files, show which attribute changed.
      By default, only the path is shown.".pack
  end
  path = File.expand_path(args[0] || ".")
  index = Fixi::Index.new(path)
 
  # if algorithms specified, must be a subset of those indexed
  opts[:algorithms] ||= index.algorithms
  set = Set.new(index.algorithms.split(","))
  subset = Set.new(opts[:algorithms].split(","))
  raise "Specified algorithm(s) must be a subset of #{index.algorithms}" unless subset.subset?(set)

  index.each(args[0]) do |hash|
    relpath = hash['relpath']
    abspath = index.rootpath + '/' + relpath
    if index.file_in_scope(relpath)
      if File.exists?(abspath)
        size = File.size(abspath)
        mtime = File.mtime(abspath).to_i
        if size != hash['size']
          detail = opts[:verbose] ? "size=#{size} " : ""
          puts "M #{detail}#{opts[:absolute] ? abspath : relpath}"
        elsif File.mtime(abspath).to_i != hash['mtime']
          detail = opts[:verbose] ? "mtime=#{Time.at(mtime).utc.iso8601} " : ""
          puts "M #{detail}#{opts[:absolute] ? abspath : relpath}"
        elsif not opts[:shallow]
          hexdigests = Fixi::hexdigests(Fixi::digests(opts[:algorithms]), abspath)
          i = 0
          opts[:algorithms].split(',').each do |algorithm|
            if hexdigests[i] != hash[algorithm]
              detail = opts[:verbose] ? "#{algorithm}=#{hexdigests[i]} " : ""
              puts "M #{detail}#{opts[:absolute] ? abspath : relpath}"
            end
            i += 1
          end
        end
      else
        puts "D #{opts[:absolute] ? abspath : relpath}"
      end
    else
      puts "X #{opts[:absolute] ? abspath : relpath}"
    end
  end

  index.find(path) do |abspath|
    relpath = index.relpath(abspath)
    unless index.contains?(relpath)
      puts "A #{opts[:absolute] ? abspath : relpath}"
    end
  end
end