kohashi.org - 写真とコンピュータと猫さんぽ

写真ファイルを整理するのに、ファイル名に撮影日付とキーワード、場所を入れている。 最初のときは、日付を「年月」だったので、今の「年月日」形式にファイル名を一括変換するプログラムを開発した。

一日で作成したので、エラー処理は適当。 自己責任でご使用ください。 Windows用です。Windows7で動作確認しています。

使用方法は、リクエストがあれば説明します。 なお、rubyによるプログラムで、ライブラリに、exifr が必要です。 EOS RAW(CR2)の撮影日付をexifrで取得しています。

# -*- coding: shift_jis -*-
#
# rename cr2/jpg files by photo taken date
#

require "exifr"

def do_rename( mode, files )
  return nil,nil,nil,nil if files.nil? or files.empty?
  if mode == 'R'
		rename = true
	else
	  remame = false
  end
  total = 0
  skipped = 0
  right_name = 0
  renamed = 0
  renamed_log = []
  right_log = []
  skipped_log = []
  files.each{|f|
    dir = File.dirname( f )
    ext = File.extname( f )
    fn = File.basename( f, ext )
	  case ext.downcase
	  when '.jpg','.jpeg'
		  exif = EXIFR::JPEG.new( f )
			date = exif.date_time_original
			# note, return nil when no exif data
	  when '.cr2'
		  exif = EXIFR::TIFF.new( f )
			date = exif.date_time_original
		else
			next
	  end
	  # validate date
	  if date.nil?
	    skipped += 1
	    skipped_log << "SKIPPED(noDATE) #{fn+ext} #{dir}"
	    print 'N'
	    next
	  end
	  #
         name = date.strftime( "%y%m%d" )
	  if fn[0..5] == name # YYMMDD
	    right_name += 1
	    right_log << "SAME #{name} - #{fn+ext} #{dir}"
	    print '-'
	  elsif fn[0..3] == name[0..3] # YYMM
	  	newfn = name + fn[4..-1]
	  	newpath = dir + '/' + newfn + ext
	    # check file already exist
	    if File.exist?( newpath )
		    skipped += 1
		    skipped_log << "SKIPPED(EXIST) #{newfn} - #{fn+ext} #{dir}"
	    print 'E'
		    next
	    end
	    # rename
	    File.rename( dir + '/' + fn + ext, newpath ) if rename
	    renamed += 1
	    renamed_log << "RENAMED(YYMM) #{newfn} - #{fn+ext} #{dir}"
	    print 'r'
	  else
	  	newfn = name + '~' + fn
	  	newpath = dir + '/' + newfn + ext
	    # check file already exist
	    if File.exist?( newpath )
		    skipped += 1
		    skipped_log << "SKIPPED(EXIST) #{newfn} - #{fn+ext} #{dir}"
	      print 'E'
		    next
	    end
	    # rename
	    File.rename( dir + '/' + fn + ext, newpath ) if rename
	    renamed += 1
	    renamed_log << "RENAMED(else) #{newfn} - #{fn+ext} #{dir}"
	    print 'R'
	  end
	}
	# close
	save_log( '_renamed.log', renamed_log )
	save_log( '_right.log', right_log )
	save_log( '_skipped.log', skipped_log )
   if rename
    status = '*RENAMED* '
  else
    status = '*LISTUP* '
  end
  return "#{status} Renamed : #{renamed}, right name : #{right_name}, skipped : #{skipped}", renamed_log, right_log, skipped_log
end

def save_log( logfile, log )
	return if logfile.nil? or logfile.empty?
	log = [ 'ERROR: nil contents.' ] if log.nil?
	logfile = @log_dir + '/' + logfile
	File.delete( logfile ) if File.exists?( logfile )
	File.open( logfile, 'w' ) { |file|
		file.write "log file\n\n"
		log.each { |l|
				file.write "#{l}\n"
			}
		file.write "\n.\n"
	}
end

### get files
require 'find'

def listup_files( dir_name )
	return nil,nil if dir_name.nil? or dir_name.empty?
	files = []
	jpg = 0
	cr2 = 0
	Find.find( dir_name ) { |f|
    #dir = File.dirname( f )
    ext = File.extname( f )
    #fn = File.basename( f, ext )
	  case ext.downcase
	  when '.jpg','.jpeg'
	    files << f
	    jpg += 1
	  when '.cr2'
	    files << f
	    cr2 += 1
	  end
	}
	return nil,nil if files.empty?
	return "Total #{jpg+cr2} files (jpg:#{jpg}, cr2:#{cr2})",  files
end

### main

print "cr2 jpg renamer\n"
print "rename to YYMMDD in filename top\n"
print "stage: development\n"
print "short instraction"
# init
@log_dir = File.dirname( $PROGRAM_NAME ) # there's no '/' at last

# loop
while true
  print "\nEnter dir name or just enter for exit = " #
  dir_name = STDIN.gets.chomp
  if dir_name.nil? or dir_name.empty?
    break
  end
  # get files
  status, files = listup_files( dir_name )
  if status.nil?
    print "\nNO tartet files\n"
    redo
  end
  print status + "\n"
  print "samples:\n"
  files.sample(5).each {|f|
    print f + "\n"
  }
  print "\nR for rename, L or other for listup, enter only for restart = "
  key = STDIN.gets.chomp
  redo if key == ''
# execute rename
  status, renamed_log, right_log, skipped_log = do_rename( key, files )
  if status.nil?
    print "\nNO affected files\n"
  else
    print "\n" + status + "\n"
	  print "renamed (#{renamed_log.size}) samples:\n"
  	renamed_log.sample(5).each {|f|
    	print f + "\n"
  	}
	  print "right (#{right_log.size}) samples:\n"
  	right_log.sample(5).each {|f|
    	print f + "\n"
  	}
	  print "skipped (#{skipped_log.size}) samples:\n"
  	skipped_log.sample(5).each {|f|
    	print f + "\n"
  	}
  end
# loop
end
print "\nprogram is terminated.\n"
exit # end of program