Module: Modder

Included in:
Modname::Driver
Defined in:
lib/modname/modder.rb

Overview

extensions

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.confirm? ⇒ Boolean

double check transformations

Returns:

  • (Boolean) 


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# File 'lib/modname/modder.rb', line 73

def confirm?
  print "Are these changes ok? [yN] "
  ($stdin.gets.chomp!).downcase[0] == "y"
end

.execute(transfer) ⇒ Object

rename all files



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# File 'lib/modname/modder.rb', line 99

def execute(transfer)
  transfer.each { |o, n| Modder.rename o, n }
end

.files(recurse) ⇒ Object

return a list of files to examine



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# File 'lib/modname/modder.rb', line 79

def files(recurse)
  if recurse
    Dir['**/*'].select { |f| File.file?(f) }
  else
    Dir.entries(Dir.pwd).select { |f| File.file? f }
  end
end

.finish(transfer, force) ⇒ Object

finish up execution, highest level wrapper



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# File 'lib/modname/modder.rb', line 105

def finish(transfer, force)

  # print changes, return if none
  Modder.status transfer
  return if transfer.empty?

  if force || Modder.confirm?
    Modder.execute transfer
    puts "Modifications complete."
  else
    puts "No modifications done."
  end
end

.parse(args) ⇒ Object

return appropriate args, repairing if undefined



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# File 'lib/modname/modder.rb', line 64

def parse(args)
  match = args.shift
  trans = args.shift
  match = "" if match.nil?
  trans = "" if trans.nil?
  return match, trans
end

.rename(o, n) ⇒ Object

try to rename a given file



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# File 'lib/modname/modder.rb', line 120

def rename(o, n)
  begin
    exist = "#{'Error:'.red} target file |#{n.green}| already exists"
    (File.exist? n) ? raise(exist) : File.rename(o, n)

  rescue => e
    puts "#{'Error:'.red} could not move |#{o.red}| to |#{n.green}|"
    puts e.message
  end
end

.status(transfer) ⇒ Object

show the status of current files



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# File 'lib/modname/modder.rb', line 89

def status(transfer)
  if transfer.empty?
    puts "No matches found.".yellow
  else
    puts "Planned file actions:".green
    transfer.each { |o, n| puts "\t#{o} -> #{n.green}" }
  end
end

.undercase_ext_get(ext, recurse) ⇒ Object

get all extensions to change



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# File 'lib/modname/modder.rb', line 133

def undercase_ext_get(ext, recurse)
  transfer = Hash.new
  allexts = ext.empty?
  Modder.files(recurse).each do |file|
    ext = file.split(".").last if allexts

    new = file.sub /#{ext}$/i, ext.downcase
    next if new == file || ext == file # no changes or extension

    transfer[file] = new
  end

  transfer
end

.undercase_ext_set(ext, transfer, force) ⇒ Object

set all extensions to change this involves moving it to a tmp file first, since most file systems are not case sensitive and therefore wont distiniguish between HI and hi. to get around this, we can set HI to HI.hash, then set HI.hash to hi



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# File 'lib/modname/modder.rb', line 152

def undercase_ext_set(ext, transfer, force)
  puts "Lowering extension: ".green + (ext.empty?? "*" : ext)

  Modder.status transfer
  return if transfer.empty?

  # confirm current changes
  if force || Modder.confirm?
    final = {}
    temp = {}

    # create hash temp map
    transfer.each do |k, v|
      tempfile = (v.hash * v.object_id).abs.to_s
      final[tempfile] = v
      temp[k] = tempfile
    end

    Modder.execute temp
    Modder.execute final
    puts "Modifications complete."
  else
    puts "No modifications done."
  end
end

Instance Method Details

#exts(args = []) ⇒ Object

change one file extension to another’s type



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# File 'lib/modname/modder.rb', line 30

def exts(args = [])
  match, trans = Modder.parse args

  if match.empty? && trans.empty? # do all
    undercase_ext

  elsif trans.empty? # undercase one ext
    undercase_ext match

  else # move match extension to targeted
    Modder.files(@options[:recurse]).each do |file|
      new = file.sub /#{match}$/, trans

      next if new == file # no changes

      @transfer[file] = new
    end

    Modder.finish @transfer, @options[:force]
  end
end

#regex(args = []) ⇒ Object

rename files based on regular expressions



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# File 'lib/modname/modder.rb', line 14

def regex(args = [])
  match, trans = Modder.parse args

  Modder.files(@options[:recurse]).each do |file|
    new = file.sub Regexp.new(match), trans

    next if (new == file || new == "") # no changes

    @transfer[file] = new
  end

  Modder.finish @transfer, @options[:force]
end

#undercase_ext(ext = "") ⇒ Object

top level wrapper for exts



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# File 'lib/modname/modder.rb', line 53

def undercase_ext(ext = "")
  transfer = Modder.undercase_ext_get ext, @options[:recurse]
  Modder.undercase_ext_set ext, transfer, @options[:force]
end