git.zarb.org Git - booh/blob - bin/booh-backend

   1 #! /usr/bin/ruby
   2 #
   3 #                         *  BOOH  *
   4 #
   5 # A.k.a 'Best web-album Of the world, Or your money back, Humerus'.
   6 #
   7 # The acronyn sucks, however this is a tribute to Dragon Ball by
   8 # Akira Toriyama, where the last enemy beaten by heroes of Dragon
   9 # Ball is named "Boo". But there was already a free software project
  10 # called Boo, so this one will be it "Booh". Or whatever.
  11 #
  12 #
  13 # Copyright (c) 2004-2009 Guillaume Cottenceau <http://zarb.org/~gc/resource/gc_mail.png>
  14 #
  15 # This software may be freely redistributed under the terms of the GNU
  16 # public license version 2.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21
  22 require 'getoptlong'
  23 begin
  24     #- new style (ruby-locale separated package)
  25     require 'locale'
  26 rescue LoadError
  27     #- old style (locale stuff in ruby-gettext package)
  28     require 'gettext/locale'
  29 end
  30 require 'gettext'
  31 include GetText
  32 require 'booh/rexml/document'
  33 include REXML
  34
  35 require 'booh/booh-lib'
  36 require 'booh/html-merges'
  37
  38 #- bind text domain as soon as possible because some _() functions are called early to build data structures
  39 bindtextdomain("booh")
  40 #- save locale for restoring for multi languages
  41 $default_locale = Locale.get
  42
  43 #- options
  44 $options = [
  45     [ '--help',          '-h', GetoptLong::NO_ARGUMENT, _("Get help message") ],
  46     [ '--version',       '-V', GetoptLong::NO_ARGUMENT, _("Print version and exit") ],
  47
  48     [ '--source',        '-s', GetoptLong::REQUIRED_ARGUMENT, _("Directory which contains original photos/videos as files or subdirs") ],
  49     [ '--destination',   '-d', GetoptLong::REQUIRED_ARGUMENT, _("Directory which will contain the web-album; if it already exits, then all existing files and directories inside it will be removed!") ],
  50
  51     [ '--theme',         '-t', GetoptLong::REQUIRED_ARGUMENT, _("Select HTML theme to use") ],
  52     [ '--config',        '-C', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing photos and videos within directories with captions") ],
  53     [ '--config-skel',   '-k', GetoptLong::REQUIRED_ARGUMENT, _("Filename where the script will output a config skeleton") ],
  54     [ '--merge-config',  '-M', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing, where to merge new/removed photos/videos from --source, and change theme info") ],
  55     [ '--merge-config-onedir',  '-O', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing, for merging the subdir specified with --dir") ],
  56     [ '--merge-config-subdirs', '-U', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing, for merging the new subdirs down the subdir specified with --dir") ],
  57     [ '--dir',           '-D', GetoptLong::REQUIRED_ARGUMENT, _("Directory for merge with --merge-config-onedir or --merge-config-subdirs") ],
  58     [ '--use-config',    '-u', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing, where to change theme info") ],
  59     [ '--force',         '-f', GetoptLong::NO_ARGUMENT, _("Force generation of album even if the GUI marked some directories as already generated") ],
  60
  61     [ '--sizes',         '-S', GetoptLong::REQUIRED_ARGUMENT, _("Specify the list of images sizes to use instead of all specified in the theme (this is a comma-separated list)") ],
  62     [ '--multi-languages', '-L', GetoptLong::REQUIRED_ARGUMENT, _("Specify the list of languages to support (uses Apache MultiViews); this is a comma-separated list of supported languages, with last element used as the fallback language; for example: 'fr,eo,en,en'; supported languages: %s") % SUPPORTED_LANGUAGES.join(', ') ],
  63     [ '--thumbnails-per-row', '-T', GetoptLong::REQUIRED_ARGUMENT, _("Specify the amount of thumbnails per row in the thumbnails page (if applicable in theme)") ],
  64     [ '--thumbnails-per-page', '-p', GetoptLong::REQUIRED_ARGUMENT, _("Specify the amount of thumbnails per page in the thumbnails page, after which split occurs") ],
  65     [ '--optimize-for-32', '-o', GetoptLong::NO_ARGUMENT, _("Resize images with optimized sizes for 3/2 aspect ratio rather than 4/3 (typical aspect ratio of photos from point-and-shoot cameras - also called compact cameras - is 4/3, whereas photos from SLR cameras - also called reflex cameras - is 3/2)") ],
  66     [ '--transcode-videos', '-r', GetoptLong::REQUIRED_ARGUMENT, _("Transcode videos with given external program; %f is the placeholder for the input video, %o for the output video; before the external program, the output video extension should be given followed by a colon") ],
  67     [ '--flv-generator', '-F', GetoptLong::REQUIRED_ARGUMENT, _("Use embedded flash player for videos (flowplayer) and use this .flv generator (%f is the placeholder for the input video, %o for the output video)") ],
  68     [ '--index-link',    '-l', GetoptLong::REQUIRED_ARGUMENT, _("Specify the HTML markup to use on the bottom of pages for a small link returning to wherever you see fit in your website (or somewhere else)") ],
  69     [ '--addthis', '-a', GetoptLong::NO_ARGUMENT, _("Include the 'addthis' bookmarking and sharing button") ],
  70     [ '--made-with',     '-n', GetoptLong::REQUIRED_ARGUMENT, _("Specify the HTML markup to use on the bottom of pages for a small 'made with' message") ],
  71     [ '--quote-html',    '-q', GetoptLong::NO_ARGUMENT, _("Quote HTML markup in captions") ],
  72     [ '--comments-format','-c', GetoptLong::REQUIRED_ARGUMENT, _("Specify comments format to use for images instead of only filename when creating new albums; use ImageMagick's format") ],
  73
  74     [ '--mproc',         '-m', GetoptLong::REQUIRED_ARGUMENT, _("Specify the number of processors for multi-processors machines") ],
  75
  76     [ '--for-gui',       '-g', GetoptLong::NO_ARGUMENT,       _("Do the minimum work to be able to see the album under the GUI (don't generate all thumbnails)") ],
  77
  78     [ '--verbose-level', '-v', GetoptLong::REQUIRED_ARGUMENT, _("Set max verbosity level (0: errors, 1: warnings, 2: important messages, 3: other messages)") ],
  79     [ '--info-pipe',     '-i', GetoptLong::REQUIRED_ARGUMENT, _("Name a file where to write information about what's going on (used by the GUI)") ],
  80 ]
  81
  82 #- default values for some globals
  83 $switches = []
  84 $stdout.sync = true
  85 $no_identify = false
  86 $ignore_videos = false
  87 $forgui = false
  88 $hardlinks_ok = true
  89
  90 def usage
  91     puts _("Usage: %s [OPTION]...") % File.basename($0)
  92     $options.each { |ary|
  93         printf " %3s, %-18s %s\n", ary[1], ary[0], ary[3]
  94     }
  95 end
  96
  97 def handle_options
  98     parser = GetoptLong.new
  99     parser.set_options(*$options.collect { |ary| ary[0..2] })
 100     begin
 101         parser.each_option do |name, arg|
 102             case name
 103             when '--help'
 104                 usage
 105                 exit(0)
 106
 107             when '--version'
 108                 puts _("Booh version %s
 109
 110 Copyright (c) 2005-2009 Guillaume Cottenceau.
 111 This is free software; see the source for copying conditions.  There is NO
 112 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.") % $VERSION
 113
 114                 exit(0)
 115
 116             when '--source'
 117                 $source = File.expand_path(arg.sub(%r|/$|, ''))
 118                 if !File.directory?($source)
 119                     die _("Argument to --source must be a directory")
 120                 end
 121             when '--destination'
 122                 $dest = File.expand_path(arg.sub(%r|/$|, ''))
 123                 if File.exists?($dest) && !File.directory?($dest)
 124                     die _("If --destination exists, it must be a directory")
 125                 end
 126                 if $dest != make_dest_filename($dest)
 127                     die _("Sorry, destination directory can't contain non simple alphanumeric characters.")
 128                 end
 129 #            when '--clean'
 130 #                system("rm -rf #{$dest}")
 131
 132             when '--theme'
 133                 $theme = arg
 134             when '--config'
 135                 arg = File.expand_path(arg)
 136                 if File.readable?(arg)
 137                     $xmldoc = REXML::Document.new File.new(arg)
 138                     $mode = 'use_config'
 139                 else
 140                     die _('Config file does not exist or is unreadable.')
 141                 end
 142             when '--config-skel'
 143                 arg = File.expand_path(arg)
 144                 if File.exists?(arg)
 145                     if File.directory?(arg)
 146                         die _("Config skeleton file (%s) already exists and is a directory! Please change the filename.") % arg
 147                     else
 148                         msg 1, _("Config skeleton file already exists, backuping to %s.backup") % arg
 149                         File.rename(arg, "#{arg}.backup")
 150                     end
 151                 end
 152                 $config_writeto = arg
 153                 $mode = 'gen_config'
 154             when '--merge-config'
 155                 arg = File.expand_path(arg)
 156                 if File.readable?(arg)
 157                     msg 2, _("Merge config notice: backuping current config file to %s.backup") % arg
 158                     $xmldoc = REXML::Document.new File.new(arg)
 159                     File.rename(arg, "#{arg}.backup")
 160                     $config_writeto = arg
 161                     $mode = 'merge_config'
 162                 else
 163                     die _('Config file does not exist or is unreadable.')
 164                 end
 165             when '--merge-config-onedir'
 166                 arg = File.expand_path(arg)
 167                 if File.readable?(arg)
 168                     msg 2, _("Merge config notice: backuping current config file to %s.backup") % arg
 169                     $xmldoc = REXML::Document.new File.new(arg)
 170                     File.rename(arg, "#{arg}.backup")
 171                     $config_writeto = arg
 172                     $mode = 'merge_config_onedir'
 173                 else
 174                     die _('Config file does not exist or is unreadable.')
 175                 end
 176             when '--merge-config-subdirs'
 177                 arg = File.expand_path(arg)
 178                 if File.readable?(arg)
 179                     msg 2, _("Merge config notice: backuping current config file to %s.backup") % arg
 180                     $xmldoc = REXML::Document.new File.new(arg)
 181                     File.rename(arg, "#{arg}.backup")
 182                     $config_writeto = arg
 183                     $mode = 'merge_config_subdirs'
 184                 else
 185                     die _('Config file does not exist or is unreadable.')
 186                 end
 187             when '--dir'
 188                 arg = File.expand_path(arg)
 189                 if !File.readable?(arg)
 190                     die _('Specified directory to merge with --dir is not readable')
 191                 else
 192                     $onedir = arg
 193                 end
 194             when '--use-config'
 195                 arg = File.expand_path(arg)
 196                 if File.readable?(arg)
 197                     msg 2, _("Use config notice: backuping current config file to %s.backup") % arg
 198                     $xmldoc = REXML::Document.new File.new(arg)
 199                     File.rename(arg, "#{arg}.backup")
 200                     $config_writeto = arg
 201                     $mode = 'use_config_changetheme'
 202                 else
 203                     die _('Config file does not exist or is unreadable.')
 204                 end
 205
 206             when '--sizes'
 207                 $limit_sizes = arg
 208
 209             when '--multi-languages'
 210                 parts = arg.split(',')
 211                 if parts.size == 0 || parts.find_all { |e| ! SUPPORTED_LANGUAGES.include?(e.strip) }.size > 0
 212                     die _("--multi-languages: argument must be a comma-separated list of supported languages, with last element used as the fallback language; for example: 'fr,eo,en,en'; supported languages: %s") % SUPPORTED_LANGUAGES.join(', ')
 213                 end
 214                 $multi_languages = [ parts[0..-2], parts[-1] ]
 215
 216             when '--thumbnails-per-row'
 217                 $N_per_row = arg
 218
 219             when '--thumbnails-per-page'
 220                 $N_per_page = arg
 221
 222             when '--optimize-for-32'
 223                 $optimize_for_32 = true
 224
 225             when '--transcode-videos'
 226                 parts = arg.split(':', 2)
 227                 if parts.size != 2 || parts[0] =~ / / || arg !~ /%f/ || arg !~ /%o/
 228                     die _("--transcode-videos: argument must be the external program for transcoding, and contain %f for the input video, %o for the output video, and before the external program, the output video extension should be given followed by a colon")
 229                 end
 230                 $transcode_videos = arg
 231
 232             when '--flv-generator'
 233                 if arg !~ /%f/ || arg !~ /%o/
 234                     die _("--flv-generator: argument must contain %f for the input video and %o for the output video")
 235                 end
 236                 $flv_generator = arg
 237
 238             when '--made-with'
 239                 $madewith = arg
 240
 241             when '--index-link'
 242                 $indexlink = arg
 243
 244             when '--addthis'
 245                 $addthis = true
 246
 247             when '--quote-html'
 248                 $quote_html = true
 249
 250             when '--comments-format'
 251                 $commentsformat = arg
 252
 253             when '--force'
 254                 $force = true
 255
 256             when '--mproc'
 257                 $mproc = arg.to_i
 258                 $pids = []
 259
 260             when '--for-gui'
 261                 $forgui = true
 262
 263             when '--verbose-level'
 264                 $verbose_level = arg.to_i
 265
 266             when '--info-pipe'
 267                 $info_pipe = File.open(arg, File::WRONLY)
 268                 $info_pipe.sync = true
 269             end
 270         end
 271     rescue
 272         puts $!
 273         usage
 274         exit(1)
 275     end
 276
 277     if !$source && $xmldoc
 278         $source = from_utf8($xmldoc.root.attributes['source']).sub(%r|/$|, '')
 279         $dest = from_utf8($xmldoc.root.attributes['destination']).sub(%r|/$|, '')
 280         $theme ||= $xmldoc.root.attributes['theme']
 281         $limit_sizes ||= $xmldoc.root.attributes['limit-sizes']
 282         if $mode == 'use_config' || $mode =~ /^merge_config/
 283             $optimize_for_32 = !$xmldoc.root.attributes['optimize-for-32'].nil?
 284             $N_per_row = $xmldoc.root.attributes['thumbnails-per-row']
 285             languages = $xmldoc.root.attributes['multi-languages']
 286             if languages
 287                 languages = languages.split(',')
 288                 $multi_languages = [ languages[0..-2], languages[-1] ]
 289             end
 290             $N_per_page = $xmldoc.root.attributes['thumbnails-per-page']
 291             $madewith = $xmldoc.root.attributes['made-with']
 292             $indexlink = $xmldoc.root.attributes['index-link']
 293             $addthis = !$xmldoc.root.attributes['addthis'].nil?
 294             $quote_html = !$xmldoc.root.attributes['quote-html'].nil?
 295         end
 296     end
 297
 298     if $mode == 'merge_config_onedir' && !$onedir
 299         die _("Missing --dir for --merge-config-onedir")
 300     end
 301     if $mode == 'merge_config_subdirs' && !$onedir
 302         die _("Missing --dir for --merge-config-subdirs")
 303     end
 304
 305     if !$source
 306         usage
 307         exit(0)
 308     end
 309     if !$dest
 310         die _("Missing --destination parameter.")
 311     end
 312     if !$theme
 313         $theme = 'simple'
 314     end
 315
 316     select_theme($theme, $limit_sizes, $optimize_for_32, $N_per_row)
 317
 318     if !$xmldoc
 319         $xmldoc = Document.new "<booh/>"
 320         $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
 321         $xmldoc.root.add_attribute('version', $VERSION)
 322         $xmldoc.root.add_attribute('source', $source)
 323         $xmldoc.root.add_attribute('destination', $dest)
 324         $xmldoc.root.add_attribute('theme', $theme)
 325         if $limit_sizes
 326             $xmldoc.root.add_attribute('limit-sizes', $limit_sizes)
 327         end
 328         if $multi_languages
 329             $xmldoc.root.add_attribute('multi-languages', $multi_languages[0].join(',') + ',' + $multi_languages[1])
 330         end
 331         if $optimize_for_32
 332             $xmldoc.root.add_attribute('optimize-for-32', 'true')
 333         end
 334         if $N_per_row
 335             $xmldoc.root.add_attribute('thumbnails-per-row', $N_per_row)
 336         end
 337         if $N_per_page
 338             $xmldoc.root.add_attribute('thumbnails-per-page', $N_per_page)
 339         end
 340         if $madewith
 341             $xmldoc.root.add_attribute('made-with', $madewith)
 342         end
 343         if $indexlink
 344             $xmldoc.root.add_attribute('index-link', $indexlink)
 345         end
 346         if $addthis
 347             $xmldoc.root.add_attribute('addthis', 'true')
 348         end
 349         if $quote_html
 350             $xmldoc.root.add_attribute('quote-html', 'true')
 351         end
 352         $mode = 'gen_config'
 353     end
 354
 355     if $mode == 'merge_config' || $mode == 'use_config_changetheme'
 356         $xmldoc.root.add_attribute('theme', $theme)
 357         $xmldoc.root.add_attribute('version', $VERSION)
 358         if $limit_sizes
 359             $xmldoc.root.add_attribute('limit-sizes', $limit_sizes)
 360         else
 361             $xmldoc.root.delete_attribute('limit-sizes')
 362         end
 363         if $multi_languages
 364             $xmldoc.root.add_attribute('multi-languages', $multi_languages[0].join(',') + ',' + $multi_languages[1])
 365         else
 366             $xmldoc.root.delete_attribute('multi-languages')
 367         end
 368
 369         if $optimize_for_32
 370             $xmldoc.root.add_attribute('optimize-for-32', 'true')
 371         else
 372             $xmldoc.root.delete_attribute('optimize-for-32')
 373         end
 374         if $N_per_row
 375             $xmldoc.root.add_attribute('thumbnails-per-row', $N_per_row)
 376         else
 377             $xmldoc.root.delete_attribute('thumbnails-per-row')
 378         end
 379         if $N_per_page
 380             $xmldoc.root.add_attribute('thumbnails-per-page', $N_per_page)
 381         else
 382             $xmldoc.root.delete_attribute('thumbnails-per-page')
 383         end
 384         if $madewith
 385             $xmldoc.root.add_attribute('made-with', $madewith)
 386         else
 387             $xmldoc.root.delete_attribute('made-with')
 388         end
 389         if $indexlink
 390             $xmldoc.root.add_attribute('index-link', $indexlink)
 391         else
 392             $xmldoc.root.delete_attribute('index-link')
 393         end
 394         if $addthis
 395             $xmldoc.root.add_attribute('addthis', 'true')
 396         else
 397             $xmldoc.root.delete_attribute('addthis')
 398         end
 399         if $quote_html
 400             $xmldoc.root.add_attribute('quote-html', 'true')
 401         else
 402             $xmldoc.root.delete_attribute('quote-html')
 403         end
 404     end
 405
 406     if $transcode_videos
 407         $xmldoc.root.add_attribute('transcode-videos', $transcode_videos)
 408     else
 409         $xmldoc.root.delete_attribute('transcode-videos')
 410     end
 411
 412     if $flv_generator
 413         $xmldoc.root.add_attribute('flv-generator', $flv_generator)
 414     else
 415         $xmldoc.root.delete_attribute('flv-generator')
 416     end
 417
 418     if $madewith
 419         $madewith = $madewith.gsub('%booh', '"http://booh.org/"')
 420     end
 421     if $multi_languages
 422         $htmlsuffix = ''
 423     else
 424         $htmlsuffix = '.html'
 425     end
 426 end
 427
 428 def read_config
 429     $config = {}
 430 end
 431
 432 def write_config
 433 end
 434
 435 def info(value)
 436     if $info_pipe
 437         $info_pipe.puts(value)
 438     end
 439 end
 440
 441 def die(value)
 442     if $info_pipe
 443         $info_pipe.puts("die: " + value)
 444     end
 445     die_ value
 446 end
 447
 448 def check_installation
 449     if !system("which convert >/dev/null 2>/dev/null")
 450         die _("The program 'convert' is needed. Please install it.
 451 It is generally available with the 'ImageMagick' software package.")
 452     end
 453     if !system("which identify >/dev/null 2>/dev/null")
 454         msg 1, _("the program 'identify' is needed to get images sizes and EXIF data. Please install it.
 455 It is generally available with the 'ImageMagick' software package.")
 456         $no_identify = true
 457     end
 458     missing = %w(mplayer).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
 459     if missing != []
 460         msg 1, _("the following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')
 461         $ignore_videos = true
 462     end
 463 end
 464
 465 def replace_line(surround, keyword, line)
 466     begin
 467         contents = eval "$#{keyword}"
 468         line.sub!(/#{surround}#{keyword}#{surround}/, contents)
 469     rescue TypeError
 470         die _("No '%s' found for substitution") % keyword
 471     end
 472 end
 473
 474 def build_html_skeletons
 475     $html_images     = File.open("#{$themedir}/skeleton_image.html").readlines
 476     $html_thumbnails = File.open("#{$themedir}/skeleton_thumbnails.html").readlines
 477     $html_index      = File.open("#{$themedir}/skeleton_index.html").readlines
 478     for line in $html_images + $html_thumbnails + $html_index
 479         while line =~ /~~~(\w+)~~~/
 480             replace_line('~~~', $1, line)
 481         end
 482     end
 483 end
 484
 485 def find_caption_value(xmldir, filename)
 486     if cap = xmldir.elements["*[@filename='#{utf8(filename)}']"].attributes['caption']
 487         return cap
 488     else
 489         return nil
 490     end
 491 end
 492
 493 def quote_caption(input, *for_attribute)
 494     if $quote_html
 495         return input.gsub('<', '&lt;').gsub('>', '&gt;').gsub('"', '&quot;').gsub("'", '&#39;').gsub("\n", '<br/>')
 496     elsif for_attribute[0]
 497         return input.gsub('"', '&quot;').gsub("\n", '<br/>')
 498     else
 499         return input.gsub("\n", '<br/>')
 500     end
 501 end
 502
 503 #- stolen from CVSspam
 504 def urlencode(text)
 505   text.sub(/[^a-zA-Z0-9\-,.*_\/]/) do
 506     "%#{sprintf('%2X', $&[0])}"
 507   end
 508 end
 509
 510 def all_images_sizes
 511     return $limit_sizes =~ /original/ ? $images_size + [ { 'name' => 'original' } ] : $images_size
 512 end
 513
 514 def html_reload_to_thumbnails
 515     html_reload_to_thumbnails = $preferred_size_reloader.clone
 516     html_reload_to_thumbnails.gsub!(/~~theme~~/, $theme)
 517     html_reload_to_thumbnails.gsub!(/~~default_size~~/, size2js($default_size['name']))
 518     html_reload_to_thumbnails.gsub!(/~~htmlsuffix~~/, $htmlsuffix)
 519     html_reload_to_thumbnails.gsub!(/~~all_sizes~~/, all_images_sizes.collect { |s| "\"#{size2js(s['name'])}\"" }.join(', '))
 520     size_auto_chooser = '';
 521     all_images_sizes.find_all { |s| s.has_key?('optimizedforwidth') }.
 522                      sort { |a,b| b['optimizedforwidth'].to_i <=> a['optimizedforwidth'].to_i }.
 523                      each { |s| size_auto_chooser += "if (w + 50 > #{s['optimizedforwidth']}) { return 'thumbnails-#{size2js(s['name'])}-0#{$htmlsuffix}'; }\n" }
 524     html_reload_to_thumbnails.gsub!(/~~size_auto_chooser~~/, size_auto_chooser)
 525     return html_reload_to_thumbnails
 526 end
 527
 528 def discover_iterations(iterations, line)
 529     if line =~ /~~iterate(\d)_open(_max(\d+|N))?~~/
 530         for iter in iterations.values
 531             if iter['open']
 532                 iter['open'] = false
 533                 iter['close_wait'] = $1.to_i
 534             end
 535         end
 536         max = $3 == 'N' ? ($N_per_row || $default_N) : $3
 537         iterations[$1.to_i] = { 'open' => true, 'max' => max, 'opening' => '', 'closing' => '' }
 538         if $1.to_i == 1
 539             line.sub!(/.*/, '~~thumbnails~~')
 540         else
 541             line.sub!(/.*/, '')
 542         end
 543     elsif line =~ /~~iterate(\d)_close~~/
 544         iterations[$1.to_i]['open']  = false;
 545         iterations[$1.to_i]['close'] = true;
 546         line.sub!(/.*/, '')
 547     else
 548         for iter in iterations.values
 549             if iter['open']
 550                 iter['opening'] += line
 551                 line.sub!(/.*/, '')
 552             end
 553             if !iter['close'] && iter['close_wait'] && iterations[iter['close_wait']]['close']
 554                 iter['closing'] += line
 555                 line.sub!(/.*/, '')
 556             end
 557         end
 558     end
 559 end
 560
 561 def reset_iterations(iterations)
 562     for iter in iterations.values
 563         iter['value'] = 0
 564     end
 565 end
 566
 567 def run_iterations(iterations, amount)
 568     html = ''
 569     should_rerun = false
 570     for level in iterations.keys.sort
 571         if iterations[level]['value'] == 0
 572             html += iterations[level]['opening']
 573         elsif level == iterations.keys.max
 574             if !iterations[level]['max'] || iterations[level]['max'] && iterations[level]['value'] + amount <= iterations[level]['max'].to_i
 575                 html += iterations[level]['opening']
 576             else
 577                 should_rerun = true
 578             end
 579         end
 580         iterations[level]['value'] += amount
 581         if iterations[level]['max'] && iterations[level]['value'] > iterations[level]['max'].to_i
 582             iterations[level]['value'] = 0
 583             iterations[level-1]['value'] = 0
 584             html += iterations[level-1]['closing']
 585         end
 586     end
 587     if should_rerun
 588         return html + run_iterations(iterations, amount)
 589     else
 590         return html
 591     end
 592 end
 593
 594 def close_iterations(iterations)
 595     html = ''
 596     for level in iterations.keys.sort.reverse
 597         html += iterations[level]['closing']
 598     end
 599     return html
 600 end
 601
 602 def img_element(fullpath, caption)
 603     if size = get_image_size(fullpath)
 604         sizespec = 'width="' + size[:x].to_s + '" height="' + size[:y].to_s + '"'
 605     else
 606         sizespec = ''
 607     end
 608     return '<img src="' + File.basename(fullpath) + '" ' + sizespec + ' alt="' + quote_caption(caption, true) + '"/>'
 609 end
 610
 611 def size2js(name)
 612     return name.gsub(/-/, '')
 613 end
 614
 615 def substitute_html_sizes(html, sizeobj, type, suffix)
 616     sizestrings = []
 617     if $images_size.length > 1 || (type == 'image' && $limit_sizes =~ /original/)
 618         for sizeobj2 in $images_size
 619             sizejs = size2js(sizeobj2['name'])
 620             sizen = defer_translation(sizename(sizeobj2['name'], false))
 621             if sizeobj != sizeobj2
 622                 if type == 'thumbnails'
 623                     sizestrings << '<a href="thumbnails-' + sizejs + suffix + $htmlsuffix + '" onclick="set_preferred_size(\'' + sizejs + '\')">' + sizen + '</a>'
 624                 else
 625                     sizestrings << '<a id="link' + sizejs + '" onclick="set_preferred_size(\'' + sizejs + '\')">' + sizen + '</a>'
 626                 end
 627             else
 628                 sizestrings << sizen
 629             end
 630         end
 631         if type == 'image' && $limit_sizes =~ /original/
 632             sizestrings << '<a id="linkoriginal" target="newframe">' + defer_translation(sizename('original', false)) + '</a>'
 633         end
 634     end
 635     html.sub!(/~~sizes~~(.+)~~/) { sizestrings.join($1) }
 636 end
 637
 638 def substitute_navigation(html, xmldir)
 639     if xmldir.parent.name == 'dir'
 640         nav = ''
 641         path = '..'
 642         parent = xmldir.parent
 643         while parent.name == 'dir'
 644             parentcaption = parent.attributes['subdirs-caption'] || File.basename(parent.attributes['path'])
 645             nav = "<a href=\"#{path}/index#{$htmlsuffix}\">#{parentcaption}</a> #{defer_translation(N_(" > "))} #{nav}"
 646             path += '/..'
 647             parent = parent.parent
 648         end
 649         html.gsub!(/~~ifnavigation\?~~(.+?)~~fi~~/) { $1 }
 650         html.gsub!(/~~navigation~~/, nav + (xmldir.attributes['subdirs-caption'] || File.basename(xmldir.attributes['path'])))
 651     else
 652         html.gsub!(/~~ifnavigation\?~~(.+?)~~fi~~/, '')
 653     end
 654 end
 655
 656 def substitute_addthis(html)
 657     html.gsub!(/~~addthis~~/, $addthis ? '<a class="addthis_button" href="http://www.addthis.com/bookmark.php?v=250"><img src="http://s7.addthis.com/static/btn/v2/lg-share-en.gif" width="125" height="16" alt="' + defer_translation(N_("Bookmark and Share")) + '" style="border:0"/></a><script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js"></script>' : '')
 658 end
 659
 660 def substitute_pathtobase(html, xmldir)
 661     path = ''
 662     location = xmldir
 663     while location.parent.name == 'dir'
 664         path = '../' + path
 665         location = location.parent
 666     end
 667     html.gsub!(/~~pathtobase~~/, path)
 668 end
 669
 670 def xmldir2destdir(xmldir)
 671     return make_dest_filename(from_utf8(File.basename(xmldir.attributes['path'])))
 672 end
 673
 674 def find_previous_album(xmldir)
 675     relative_pos = ''
 676     begin
 677         #- move to previous dir element if exists
 678         if prevelem = xmldir.previous_element_byname_notattr('dir', 'deleted')
 679             xmldir = prevelem
 680             relative_pos += '../' + xmldir2destdir(xmldir) + '/'
 681             child = nil
 682             #- after having moved to previous dir, we need to go down last subdir until the last one
 683             while child = xmldir.elements['dir']
 684                 while nextchild = child.next_element_byname_notattr('dir', 'deleted')
 685                     child = nextchild
 686                 end
 687                 relative_pos += xmldir2destdir(child) + '/'
 688                 xmldir = child
 689             end
 690         else
 691             #- previous dir doesn't exist, move to previous dir element if exists
 692             xmldir = xmldir.parent
 693             if xmldir.name == 'dir' && !xmldir.attributes['deleted']
 694                 relative_pos += '../'
 695             else
 696                 return nil
 697             end
 698         end
 699     end while !xmldir.child_byname_notattr('image', 'deleted') && !xmldir.child_byname_notattr('video', 'deleted')
 700     return File.reduce_path(relative_pos)
 701 end
 702
 703 def find_next_album(xmldir)
 704     relative_pos = ''
 705     begin
 706         #- first child dir element (catches when initial xmldir has both thumbnails and subdirs)
 707         if firstchild = xmldir.child_byname_notattr('dir', 'deleted')
 708             xmldir = firstchild
 709             relative_pos += xmldir2destdir(xmldir) + '/'
 710         #- next brother
 711         elsif nextbro = xmldir.next_element_byname_notattr('dir', 'deleted')
 712             xmldir = nextbro
 713             relative_pos += '../' + xmldir2destdir(xmldir) + '/'
 714         else
 715             #- go up until we have a next brother or we are finished
 716             begin
 717                 xmldir = xmldir.parent
 718                 relative_pos += '../'
 719             end while xmldir && !xmldir.next_element_byname_notattr('dir', 'deleted')
 720             if xmldir
 721                 xmldir = xmldir.next_element_byname('dir')
 722                 relative_pos += '../' + xmldir2destdir(xmldir) + '/'
 723             else
 724                 return nil
 725             end
 726         end
 727     end while !xmldir.child_byname_notattr('image', 'deleted') && !xmldir.child_byname_notattr('video', 'deleted')
 728     return File.reduce_path(relative_pos)
 729 end
 730
 731 def find_translation_for_file(file, msg)
 732     if $multi_languages
 733         if file =~ /\.(\w\w)\.html$/
 734             bindtextdomain("booh", { :locale => "#{$1}.UTF-8" })
 735             retval = _(msg)
 736             Locale.set_current($default_locale)
 737             return retval
 738         else
 739             die "Internal error: cannot find multi language suffix of file '#{file}'"
 740         end
 741     else
 742         return utf8(_(msg))
 743     end
 744 end
 745
 746 def sub_previous_next_album(file, previous_album, next_album, html, previous_album_msg, next_album_msg)
 747     if previous_album
 748         html.gsub!(/~~previous_album~~/, '<a href="' + previous_album + 'thumbnails' + $htmlsuffix + '">' + previous_album_msg + '</a>')
 749         html.gsub!(/~~ifprevious_album\?~~(.+?)~~fi~~/) { $1 }
 750     else
 751         html.gsub!(/~~previous_album~~/, '')
 752         html.gsub!(/~~ifprevious_album\?~~(.+?)~~fi~~/, '')
 753     end
 754     if next_album
 755         html.gsub!(/~~next_album~~/, '<a href="' + next_album + 'thumbnails' + $htmlsuffix + '">' + next_album_msg + '</a>')
 756         html.gsub!(/~~ifnext_album\?~~(.+?)~~fi~~/) { $1 }
 757     else
 758         html.gsub!(/~~next_album~~/, '')
 759         html.gsub!(/~~ifnext_album\?~~(.+?)~~fi~~/, '')
 760     end
 761     return html
 762 end
 763
 764 def save_html(html, base_filename)
 765     if html.class == Array
 766         html = html.join('')
 767     end
 768     if $multi_languages
 769         for language in ($multi_languages[0] + [ $multi_languages[1] ]).uniq
 770             bindtextdomain("booh", { :locale => "#{language}.UTF-8" })
 771             ios = File.open("#{base_filename}.#{language}.html", "w")
 772             ios.write(html.gsub(/@@(.*?)@@/) { _($1) })
 773             ios.close
 774             Locale.set_current($default_locale)
 775         end
 776     else
 777         ios = File.open("#{base_filename}.html", "w")
 778         ios.write(html.gsub(/@@(.*?)@@/) { utf8(_($1)) })
 779         ios.close
 780     end
 781 end
 782
 783 def apply_hook(name, content, *params)
 784     if $hooks.nil?
 785         return content
 786     end
 787     hook = $hooks[name]
 788     if hook.nil?
 789         return content
 790     else
 791         return hook.call(content, *params)
 792     end
 793 end
 794
 795 def walk_source_dir
 796
 797     #- preprocess the path->dir, rexml is very slow with that; we seem to improve speed by 7%
 798     optxpath = {}
 799     $xmldoc.elements.each('//dir') { |elem|
 800         optxpath[elem.attributes['path']] = elem
 801     }
 802
 803     examined_dirs = nil
 804     if $mode == 'merge_config_onedir'
 805         examined_dirs = [ $onedir ]
 806     elsif $mode == 'merge_config_subdirs'
 807         examined_dirs = `find '#{$onedir}' -type d -follow`.sort.collect { |v| v.chomp }.delete_if { |v| optxpath.has_key?(utf8(v)) }
 808     else
 809         examined_dirs = `find '#{$source}' -type d -follow`.sort.collect { |v| v.chomp }
 810         if $mode == 'merge_config'
 811             $xmldoc.elements.each('//dir') { |elem|
 812                 if ! examined_dirs.include?(elem.attributes['path'])
 813                     msg 2, _("Merging config: removing directory %s from config, isn't on filesystem anymore") % elem.attributes['path']
 814                     elem.remove
 815                 end
 816             }
 817         end
 818     end
 819     info("directories: #{examined_dirs.length}, sizes: #{$images_size.length}")
 820
 821     examined_dirs.each { |dir|
 822         if dir =~ /'/
 823             die _("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir
 824         end
 825         if $mode !~ /^use_config/
 826             Dir.entries(dir).each { |file|
 827                 if file =~ /['"\[\]]/
 828                     die _("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}"
 829                 end
 830             }
 831         end
 832     }
 833
 834     examined_dirs.each { |dir|
 835         if File.basename(dir) =~ /^\./
 836             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
 837             next
 838         end
 839
 840         dest_dir = make_dest_filename(dir.sub(/^#{Regexp.quote($source)}/, $dest))
 841
 842         #- place xml document on proper node if exists, else create
 843         xmldir = optxpath[utf8(dir)]
 844         if $mode == 'use_config' || $mode == 'use_config_changetheme'
 845             if !xmldir || (xmldir.attributes['already-generated'] && !$force) || xmldir.attributes['deleted']
 846                 info("walking: #{dir}|#{$source}, 0 elements")
 847                 if xmldir && xmldir.attributes['deleted']
 848                     system("rm -rf '#{dest_dir}'")
 849                 end
 850                 next
 851             end
 852         else
 853             if $mode == 'gen_config' || (($mode == 'merge_config' || $mode == 'merge_config_subdirs') && !xmldir)
 854                 #- add the <dir..> element if necessary
 855                 parent = File.dirname(dir)
 856                 xmldir = $xmldoc.elements["//dir[@path='#{utf8(parent)}']"]
 857                 if !xmldir
 858                     xmldir = $xmldoc.root
 859                 end
 860                 #- need to remove the already-generated mark of the parent because of the sub-albums page containing now one more element
 861                 xmldir.delete_attribute('already-generated')
 862                 xmldir = optxpath[utf8(dir)] = xmldir.add_element('dir', { 'path' => utf8(dir) })
 863             end
 864         end
 865         xmldir.delete_attribute('already-generated')
 866
 867         #- preprocess all the existing elements, rexml is slow with that
 868         optelements = {}
 869         xmldir.elements.each { |elem|
 870             if filename = elem.attributes['filename']
 871                 optelements[elem.name + '|' + filename] = elem
 872             end
 873         }
 874
 875         #- read images/videos entries from config or from directories depending on mode
 876         entries = []
 877         if $mode == 'use_config' || $mode == 'use_config_changetheme'
 878             msg 2, _("Handling %s from config list...") % dir
 879             xmldir.elements.each { |element|
 880                 if %w(image video).include?(element.name) && !element.attributes['deleted']
 881                     entries << from_utf8(element.attributes['filename'])
 882                 end
 883             }
 884         else
 885             msg 2, _("Examining %s...") % dir
 886             entries = Dir.entries(dir).sort
 887             #- populate config in case of gen_config, add new files in case of merge_config
 888             for file in entries
 889                 if file =~ /['"\[\]]/
 890                     msg 1, _("Ignoring %s, contains one of forbidden characters: '\"[]") % "#{dir}/#{file}"
 891                 else
 892                     type = entry2type(file)
 893                     if type && ! optelements[type + '|' + utf8(file)]
 894                         #- hack: don't run identify (which is slow) if format only contains default %t
 895                         if $commentsformat && type == 'image' && $commentsformat != '%t'
 896                             comment = utf8(`identify -format "#{$commentsformat}" '#{dir}/#{file}'`.chomp.sub(/\.$/, ''))
 897                         else
 898                             comment = utf8cut(file.sub(/\.[^\.]+$/, ''), 18)
 899                         end
 900                         optelements[type + '|' + utf8(file)] = xmldir.add_element(type, { "filename" => utf8(file), "caption" => comment })
 901                     end
 902                 end
 903             end
 904             if $mode != 'gen_config'
 905                 #- cleanup removed files from config and reread entries from config to get proper ordering
 906                 entries = []
 907                 xmldir.elements.each { |element|
 908                     fullpath = "#{dir}/#{from_utf8(element.attributes['filename'])}"
 909                     if %w(image video).include?(element.name)
 910                         if !File.readable?(fullpath)
 911                             msg 1, _("Config merge: removing %s from config; use the backup file to retrieve caption info if this was a mistake") % fullpath
 912                             xmldir.delete(element)
 913                         elsif !element.attributes['deleted']
 914                             entries << from_utf8(element.attributes['filename'])
 915                         end
 916                     end
 917                 }
 918                 #- if there is no more elements here, there is no album here anymore
 919                 if !xmldir.child_byname_notattr('image', 'deleted') && !xmldir.child_byname_notattr('video', 'deleted')
 920                     xmldir.delete_attribute('thumbnails-caption')
 921                     xmldir.delete_attribute('thumbnails-captionfile')
 922                 end
 923             end
 924         end
 925         images = entries.find_all { |e| entry2type(e) == 'image' }
 926         msg 3, _("\t%s photos") % images.length
 927         videos = entries.find_all { |e| entry2type(e) == 'video' }
 928         msg 3, _("\t%s videos") % videos.length
 929         info("walking: #{dir}|#{$source}, #{images.length + videos.length} elements")
 930
 931         system("mkdir -p '#{dest_dir}'")
 932
 933         #- generate .htaccess file
 934         if !$forgui
 935             ios = File.open("#{dest_dir}/.htaccess", "w")
 936             ios.write("AddCharset UTF-8 .html\n")
 937             if auth_user_file = xmldir.attributes['password-protect']
 938                 msg 3, _("\tgenerating password protection file #{dest_dir}/.htaccess")
 939                 ios.write("AuthType Basic\nAuthName \"protected area\"\nAuthUserFile #{auth_user_file}\nrequire valid-user\n")
 940             end
 941             if $multi_languages
 942                 ios.write("Options +Multiviews\n")
 943                 ios.write("LanguagePriority #{$multi_languages[1]}\n")
 944                 ios.write("ForceLanguagePriority Prefer Fallback\n")
 945                 ios.write("DirectoryIndex index\n")
 946             end
 947             ios.close
 948         end
 949
 950         #- pass through if there are no images and videos
 951         if images.size == 0 && videos.size == 0
 952             if !$forgui
 953                 #- cleanup old images/videos, especially if this directory contained images/videos previously.
 954                 if $mode != 'gen_config'
 955                     rightful_images = [ '.htaccess' ]
 956                     if xmldir.attributes['thumbnails-caption']
 957                         rightful_images << 'thumbnails-thumbnail.jpg'
 958                     end
 959                     xmldir.elements.each('dir') { |child|
 960                         if child.attributes['deleted']
 961                             next
 962                         end
 963                         subdir = make_dest_filename(from_utf8(File.basename(child.attributes['path'])))
 964                         rightful_images << "thumbnails-#{subdir}.jpg"
 965                     }
 966                     to_del = Dir.entries(dest_dir).find_all { |e| !File.directory?(File.join(dest_dir, e)) && !rightful_images.include?(e) }
 967                     if to_del.size > 0
 968                         File.delete(*to_del.collect { |e| File.join(dest_dir, e) })
 969                     end
 970                 end
 971
 972                 #- copy any resource file that goes with the theme (css, images..)
 973                 themestuff = Dir.entries("#{$themedir}").
 974                                  find_all { |e| !%w(. .. skeleton_image.html skeleton_thumbnails.html skeleton_index.html metadata root).include?(e) }
 975                 themestuff.each { |entry|
 976                     if !File.exists?(File.join(dest_dir, entry))
 977                         psys("cp '#{$themedir}/#{entry}' '#{dest_dir}'")
 978                     end
 979                 }
 980
 981                 #- copy any root-only resource file that goes with the theme (css, images..)
 982                 if xmldir.parent.name != 'dir'
 983                     themestuff_root = Dir.entries("#{$themedir}/root").
 984                                           find_all { |e| !%w(. ..).include?(e) }
 985                     themestuff_root.each { |entry|
 986                         if !File.exists?(File.join(dest_dir, entry))
 987                             psys("cp '#{$themedir}/root/#{entry}' '#{dest_dir}'")
 988                         end
 989                     }
 990                     #- copy flowplayer stuff if needed
 991                     if $flv_generator
 992                         psys("cp #{$FPATH}/flowplayer/flowplayer* '#{dest_dir}'")
 993                     end
 994                 end
 995             end
 996             next
 997         end
 998
 999         msg 2, _("Outputting in %s...") % dest_dir
1000
1001         #- populate data structure with sizes from theme
1002         for sizeobj in $images_size
1003             fullscreen_images ||= {}
1004             fullscreen_images[sizeobj['name']] = []
1005             thumbnail_images ||= {}
1006             thumbnail_images[sizeobj['name']] = []
1007             fullscreen_videos ||= {}
1008             fullscreen_videos[sizeobj['name']] = []
1009             thumbnail_videos ||= {}
1010             thumbnail_videos[sizeobj['name']] = []
1011         end
1012         #- a special dummy size to keep 'references' to thumbnails in case of panorama, because the GUI will use the regular thumbnails
1013         thumbnail_images['dont-delete-file-for-gui'] = []
1014         if $limit_sizes =~ /original/
1015             fullscreen_images['original'] = []
1016             fullscreen_videos['original'] = []
1017         end
1018
1019         images.size >= 1 and msg 3, _("\tcreating photos thumbnails...")
1020
1021         #- create thumbnails for images
1022         images.each { |img|
1023             info("processing element")
1024             base_dest_img = dest_dir + '/' + make_dest_filename(img.sub(/\.[^\.]+$/, ''))
1025             elem = optelements['image|' + utf8(img)]
1026             if $forgui
1027                 thumbnail_dest_img = base_dest_img + "-#{$default_size['thumbnails']}.jpg"
1028                 gen_thumbnails_element("#{dir}/#{img}", elem, true, [ { 'filename' => thumbnail_dest_img, 'size' => $default_size['thumbnails'] } ])
1029             else
1030                 todo = []
1031                 for sizeobj in $images_size
1032                     size_fullscreen = sizeobj['fullscreen']
1033                     size_thumbnails = sizeobj['thumbnails']
1034                     fullscreen_dest_img = base_dest_img + "-#{size_fullscreen}.jpg"
1035                     fullscreen_images[sizeobj['name']] << File.basename(fullscreen_dest_img)
1036                     todo << { 'filename' => fullscreen_dest_img, 'size' => size_fullscreen }
1037                     if pano = pano_amount(elem)
1038                         thumbnail_images['dont-delete-file-for-gui'] << File.basename(base_dest_img + "-#{size_thumbnails}.jpg")
1039                         size_thumbnails = size_thumbnails.sub(/(\d+)/) { ($1.to_i * pano).to_i }
1040                     end
1041                     thumbnail_dest_img = base_dest_img + "-#{size_thumbnails}.jpg"
1042                     thumbnail_images[sizeobj['name']] << File.basename(thumbnail_dest_img)
1043                     todo << { 'filename' => thumbnail_dest_img,  'size' => size_thumbnails }
1044                 end
1045                 gen_thumbnails_element("#{dir}/#{img}", elem, true, todo)
1046                 if $limit_sizes =~ /original/
1047                     fullscreen_images['original'] << img
1048                 end
1049                 destimg = "#{dest_dir}/#{img}"
1050                 if $limit_sizes =~ /original/ && !File.exists?(destimg)
1051                     if $hardlinks_ok
1052                         if ! sys("ln '#{dir}/#{img}' '#{destimg}'")
1053                             $hardlinks_ok = false
1054                         end
1055                     end
1056                     if ! $hardlinks_ok
1057                         psys("cp '#{dir}/#{img}' '#{destimg}'")
1058                     end
1059                 end
1060             end
1061         }
1062
1063         videos.size >= 1 and msg 3, _("\tcreating videos thumbnails...")
1064         transcoded_videos = {}
1065         flv_videos = {}
1066
1067         #- create thumbnails for videos
1068         videos.each { |video|
1069             info("processing element")
1070             base_dest_img = dest_dir + '/' + make_dest_filename(video.sub(/\.[^\.]+$/, ''))
1071             elem = optelements['video|' + utf8(video)]
1072             if $forgui
1073                 thumbnail_dest_img = base_dest_img + "-#{$default_size['thumbnails']}.jpg"
1074                 gen_thumbnails_element("#{dir}/#{video}", elem, true, [ { 'filename' => thumbnail_dest_img, 'size' => $default_size['thumbnails'] } ])
1075             else
1076                 todo = []
1077                 for sizeobj in $images_size
1078                     size_fullscreen = sizeobj['fullscreen']
1079                     size_thumbnails = sizeobj['thumbnails']
1080                     fullscreen_dest_img = base_dest_img + "-#{size_fullscreen}.jpg"
1081                     fullscreen_videos[sizeobj['name']] << File.basename(fullscreen_dest_img)
1082                     todo << { 'filename' => fullscreen_dest_img, 'size' => size_fullscreen }
1083                     thumbnail_dest_img = base_dest_img + "-#{size_thumbnails}.jpg"
1084                     thumbnail_videos[sizeobj['name']] << File.basename(thumbnail_dest_img)
1085                     todo << { 'filename' => thumbnail_dest_img, 'size' => size_thumbnails }
1086                 end
1087                 gen_thumbnails_element("#{dir}/#{video}", elem, true, todo)
1088
1089                 if $transcode_videos
1090                     parts = $transcode_videos.split(':', 2)
1091                     basedestvideo = video.sub(/\.\w+/, '') + '.' + parts[0]
1092                     transcoded_videos[video] = basedestvideo
1093                     destvideo = "#{dest_dir}/#{basedestvideo}"
1094                     if ! File.exists?(destvideo)
1095                         psys(parts[1].gsub(/%f/, "'#{dir}/#{video}'").gsub(/%o/, "'#{destvideo}'"))
1096                     end
1097
1098                 elsif $flv_generator
1099                     basedestvideo = video.sub(/\.\w+/, '') + '.flv'
1100                     flv_videos[video] = basedestvideo
1101                     destvideo = "#{dest_dir}/#{basedestvideo}"
1102                     if File.exists?(destvideo) && File.size(destvideo) == 0
1103                         File.delete(destvideo)
1104                     end
1105                     if ! File.exists?(destvideo)
1106                         psys($flv_generator.gsub(/%f/, "'#{dir}/#{video}'").gsub(/%o/, "'#{destvideo}'"))
1107                     end
1108
1109                 else
1110                     destvideo = "#{dest_dir}/#{video}"
1111                     if ! File.exists?(destvideo)
1112                         if $hardlinks_ok
1113                             if ! sys("ln '#{dir}/#{video}' '#{destvideo}'")
1114                                 $hardlinks_ok = false
1115                             end
1116                         end
1117                         if ! $hardlinks_ok
1118                             psys("cp '#{dir}/#{video}' '#{destvideo}'")
1119                         end
1120                     end
1121                 end
1122             end
1123         }
1124
1125         if !$forgui
1126             #- cleanup old images/videos (for when removing elements or sizes)
1127             all_elements = fullscreen_images.collect { |e| e[1] }.flatten.
1128                      concat(thumbnail_images.collect { |e| e[1] }.flatten).
1129                      concat(fullscreen_videos.collect { |e| e[1] }.flatten).
1130                      concat(thumbnail_videos.collect { |e| e[1] }.flatten).
1131                      concat($transcode_videos ? transcoded_videos.values : $flv_generator ? flv_videos.values : videos).
1132                      push('.htaccess')
1133             to_del = Dir.entries(dest_dir).find_all { |e| !File.directory?(File.join(dest_dir, e)) && !all_elements.include?(e) && e !~ /^thumbnails-\w+\.jpg/ }
1134             if to_del.size > 0
1135                 msg 3, _("\tcleaning up: #{to_del.join(', ')}")
1136                 File.delete(*to_del.collect { |e| File.join(dest_dir, e) })
1137             end
1138
1139             #- copy any resource file that goes with the theme (css, images..)
1140             themestuff = Dir.entries("#{$themedir}").
1141                              find_all { |e| !%w(. .. skeleton_image.html skeleton_thumbnails.html skeleton_index.html metadata root).include?(e) }
1142             themestuff.each { |entry|
1143                 if !File.exists?(File.join(dest_dir, entry))
1144                     psys("cp '#{$themedir}/#{entry}' '#{dest_dir}'")
1145                 end
1146             }
1147
1148             #- copy any root-only resource file that goes with the theme (css, images..)
1149             if xmldir.parent.name != 'dir'
1150                 themestuff_root = Dir.entries("#{$themedir}/root").
1151                                       find_all { |e| !%w(. ..).include?(e) }
1152                 themestuff_root.each { |entry|
1153                     if !File.exists?(File.join(dest_dir, entry))
1154                         psys("cp '#{$themedir}/root/#{entry}' '#{dest_dir}'")
1155                     end
1156                 }
1157                 #- copy flowplayer stuff if needed
1158                 if $flv_generator
1159                     psys("cp #{$FPATH}/flowplayer/flowplayer* '#{dest_dir}'")
1160                 end
1161             end
1162
1163             msg 3, _("\tgenerating HTML pages...")
1164             #- fixup max per page
1165             if $N_per_page
1166                 $N_per_page = $N_per_page.to_i / ($N_per_row || $default_N).to_i * ($N_per_row || $default_N).to_i
1167             end
1168
1169             #- generate thumbnails*.html (page with thumbnails)
1170             element2thumbnailpage4js = []
1171             for sizeobj in $images_size
1172                 info("processing size")
1173                 html = $html_thumbnails.collect { |l| l.clone }
1174                 iterations = {}
1175                 for i in html
1176                     i.sub!(/~~title~~/, quote_caption(xmldir.attributes['thumbnails-caption'] || utf8(File.basename(dir))))
1177                     i.sub!(/~~flowplayer_head_code~~/, ($flv_generator && videos.size > 0) ? '<script type="text/javascript" src="~~pathtobase~~flowplayer-3.1.4.min.js"></script>' : '')
1178                     discover_iterations(iterations, i)
1179                 end
1180                 all_pages = []
1181                 html_thumbnails = ''
1182                 html_thumbnails_nojs = ''
1183                 counter = 0
1184                 pagecount = 0
1185                 reset_iterations(iterations)
1186                 #- preprocess the @filename->elem, rexml is very slow with that; we dramatically improve this part of the processing
1187                 optfilename = {}
1188                 xmldir.elements.each('image') { |elem|
1189                     optfilename[elem.attributes['filename']] = elem
1190                 }
1191                 for file in entries
1192                     type = images.include?(file) ? 'image' : videos.include?(file) ? 'video' : nil
1193                     if type
1194                         homogeinize_width = 100 / ($N_per_row || $default_N).to_i
1195                         if type == 'image' && elem = optfilename[utf8(file)]
1196                             if pano = pano_amount(elem)
1197                                 html_elem = run_iterations(iterations, pano)
1198                                 counter += count = pano.ceil
1199                                 html_elem.gsub!(/~~colspan~~/) { "colspan=\"#{count}\"" }
1200                                 homogeinize_width *= count
1201                             else
1202                                 html_elem = run_iterations(iterations, 1)
1203                                 counter += 1
1204                                 html_elem.gsub!(/~~colspan~~/, '')
1205                             end
1206                         else
1207                             html_elem = run_iterations(iterations, 1)
1208                             counter += 1
1209                             html_elem.gsub!(/~~colspan~~/, '')
1210                         end
1211                         html_elem.gsub!(/~~homogeinize_width~~/) { "width=\"#{homogeinize_width}%\"" }
1212                         if type == 'image'
1213                             index = images.index(file)
1214                             caption = find_caption_value(xmldir, images[index]) || utf8(images[index])
1215                             html_elem.gsub!(/~~caption_iteration~~/, quote_caption(caption))
1216                             html_elem.gsub!(/~~ifimage\?~~(.+?)~~fi~~/) { $1 }
1217                             html_elem.gsub!(/~~ifvideo\?~~(.+?)~~fi~~/, '')
1218                         elsif type == 'video'
1219                             index = videos.index(file)
1220                             caption = find_caption_value(xmldir, videos[index]) || utf8(videos[index])
1221                             if File.exists?("#{dest_dir}/#{thumbnail_videos[sizeobj['name']][index]}")
1222                                 video_preview = '<div class="thumbnail_video">' + img_element("#{dest_dir}/#{thumbnail_videos[sizeobj['name']][index]}", caption) + '</div>'
1223                             else
1224                                 video_preview = defer_translation(N_("(no preview)"))
1225                             end
1226                             if $flv_generator
1227                                 size = get_image_size("#{dest_dir}/#{thumbnail_videos[sizeobj['name']][index]}")
1228                                 if ! size
1229                                     sizeobj['thumbnails'] =~ /(\d+)x(\d+)/
1230                                     size = { :x => $1, :y => $2 }
1231                                 end
1232                                 sizespec = 'width:' + size[:x].to_s + 'px;height:' + (size[:y] + 24).to_s + 'px'
1233                                 image_iteration = '<a href="' + flv_videos[videos[index]] + '" style="display:block;' + sizespec + '"' +
1234                                                   '   id="player' + index.to_s + '">' + video_preview +
1235                                                   '<img src="~~pathtobase~~play_video.png" style="position:relative;top:-' + ((size[:y]+48)/2).to_s + 'px;border:0;background-color:transparent"/></a>' +
1236                                                   '<script>flowplayer("player' + index.to_s + '", "~~pathtobase~~flowplayer-3.1.5.swf")</script>'
1237                                 html_elem.gsub!(/~~image_iteration~~/, apply_hook(:image_iteration, image_iteration, 'video'))
1238                             else
1239                                 html_elem.gsub!(/~~image_iteration~~/,
1240                                                 '<a href="' + ( $transcode_videos ? transcoded_videos[videos[index]] : videos[index] ) + '">' +
1241                                                     video_preview + '</a>')
1242                             end
1243                             html_elem.gsub!(/~~caption_iteration~~/, quote_caption(caption))
1244                             html_elem.gsub!(/~~ifimage\?~~(.+?)~~fi~~/, '')
1245                             html_elem.gsub!(/~~ifvideo\?~~(.+?)~~fi~~/) { $1 }
1246                         end
1247                         html_thumbnails += html_elem
1248                         html_thumbnails_nojs += html_elem
1249                         if type == 'image'
1250                             img_preview = '<div class="thumbnail_image">' + img_element("#{dest_dir}/#{thumbnail_images[sizeobj['name']][index]}", caption) + '</div>'
1251                             html_thumbnails.gsub!(/~~image_iteration~~/,
1252                                                   '<a href="image-' + size2js(sizeobj['name']) + $htmlsuffix + '#current=' + fullscreen_images[sizeobj['name']][index] +
1253                                                       '" name="' + fullscreen_images[sizeobj['name']][index] + '">' + img_preview + '</a>')
1254                             html_thumbnails_nojs.gsub!(/~~image_iteration~~/,
1255                                                        '<a href="' + fullscreen_images[sizeobj['name']][index] + '" name="' + fullscreen_images[sizeobj['name']][index] + '">' +
1256                                                        img_preview + '</a>')
1257                         end
1258                         #- remember in which thumbnails page is this element, for element->thumbnail link
1259                         if sizeobj == $images_size[0]
1260                             element2thumbnailpage4js << pagecount
1261                         end
1262
1263                         if counter == $N_per_page
1264                             html_thumbnails      += close_iterations(iterations)
1265                             html_thumbnails_nojs += close_iterations(iterations)
1266                             all_pages << [ html_thumbnails, html_thumbnails_nojs ]
1267                             html_thumbnails = ''
1268                             html_thumbnails_nojs = ''
1269                             counter = 0
1270                             reset_iterations(iterations)
1271                             pagecount += 1
1272                         end
1273                     end
1274                 end
1275                 if counter > 0
1276                     html_thumbnails      += close_iterations(iterations)
1277                     html_thumbnails_nojs += close_iterations(iterations)
1278                     all_pages << [ html_thumbnails, html_thumbnails_nojs ]
1279                 end
1280                 for i in html
1281                     i.gsub!(/~~theme~~/, $theme)
1282                     i.gsub!(/~~current_size~~/, sizeobj['name'])
1283                     i.gsub!(/~~htmlsuffix~~/, $htmlsuffix)
1284                     i.gsub!(/~~current_size_js~~/, size2js(sizeobj['name']))
1285                     i.gsub!(/~~madewith~~/, $madewith || '')
1286                     i.gsub!(/~~indexlink~~/, $indexlink || '')
1287                     substitute_addthis(i)
1288                     substitute_navigation(i, xmldir)
1289                 end
1290                 html_nojs = html.collect { |l| l.clone }
1291                 pagecount = 0
1292                 for page in all_pages
1293                     html_thumbnails, html_thumbnails_nojs = page
1294                     final_html = html.collect { |l| l.clone }
1295                     mstuff = defer_translation(N_("Pages: ")) +
1296                              (pagecount > 0 ? "<a href=\"thumbnails-#{size2js(sizeobj['name'])}%nojs-#{pagecount - 1}#{$htmlsuffix}\">" + defer_translation(N_("<- Previous")) + "</a> " : '') +
1297                              all_pages.collect_with_index { |p,idx| page == p ? idx + 1 : "<a href=\"thumbnails-#{size2js(sizeobj['name'])}%nojs-#{idx}#{$htmlsuffix}\">#{idx + 1}</a>" }.join(', ') +
1298                              (pagecount < all_pages.size - 1 ? " <a href=\"thumbnails-#{size2js(sizeobj['name'])}%nojs-#{pagecount + 1}#{$htmlsuffix}\">" + defer_translation(N_("Next ->")) + "</a> " : '')
1299                     for i in final_html
1300                         i.sub!(/~~run_slideshow~~/,
1301                                entries.size <= 1 ? '' : '<a href="image-' + size2js(sizeobj['name']) + $htmlsuffix + '#run_slideshow=1">' + defer_translation(N_("Run slideshow!"))+'</a>')
1302                         i.sub!(/~~thumbnails~~/, html_thumbnails)
1303                         if all_pages.size == 1
1304                             i.gsub!(/~~ifmultiplepages\?~~.*~~fi~~/, '')
1305                         else
1306                             i.gsub!(/~~ifmultiplepages\?~~(.+?)~~fi~~/) { $1 }
1307                             i.gsub!(/~~multiplepagesstuff~~/, mstuff.gsub('%nojs', ''))
1308                         end
1309                         substitute_html_sizes(i, sizeobj, 'thumbnails', "-#{pagecount}")
1310                         substitute_pathtobase(i, xmldir)
1311                     end
1312                     save_html(final_html, "#{dest_dir}/thumbnails-#{size2js(sizeobj['name'])}-#{pagecount}")
1313                     final_html_nojs = html_nojs.collect { |l| l.clone }
1314                     for i in final_html_nojs
1315                         i.sub!(/~~run_slideshow~~/, defer_translation(N_("<i>Click on an image to view it larger</i>")))
1316                         i.sub!(/~~thumbnails~~/, html_thumbnails_nojs)
1317                         if all_pages.size == 1
1318                             i.gsub!(/~~ifmultiplepages\?~~.*~~fi~~/, '')
1319                         else
1320                             i.gsub!(/~~ifmultiplepages\?~~(.+?)~~fi~~/) { $1 }
1321                             i.gsub!(/~~multiplepagesstuff~~/, mstuff.gsub('%nojs', '-nojs'))
1322                         end
1323                         substitute_html_sizes(i, sizeobj, 'thumbnails', "-nojs-#{pagecount}")
1324                         substitute_pathtobase(i, xmldir)
1325                     end
1326                     save_html(final_html_nojs, "#{dest_dir}/thumbnails-#{size2js(sizeobj['name'])}-nojs-#{pagecount}")
1327                     pagecount += 1
1328                 end
1329             end
1330
1331             info("finished processing sizes")
1332
1333             #- generate "main" thumbnails.html page that will reload to correct size thanks to cookie
1334             save_html(html_reload_to_thumbnails, "#{dest_dir}/thumbnails")
1335
1336             #- generate image.html (page with fullscreen images)
1337             captions4js = []
1338             types4js = []
1339             videos4js = []
1340             for file in entries
1341                 type = images.include?(file) ? 'image' : videos.include?(file) ? 'video' : nil
1342                 if type
1343                     caption = find_caption_value(xmldir, file)
1344                     if caption
1345                         captions4js << '"' + quote_caption(caption, true) + '"'
1346                     else
1347                         captions4js << '""'
1348                     end
1349                     types4js << '"' + type + '"'
1350                     if type == 'video'
1351                         index = videos.index(file)
1352                         if $flv_generator
1353                             videos4js << '"' + flv_videos[videos[index]] + '"'
1354                         else
1355                             videos4js << '"' + videos[index] + '"'
1356                         end
1357                     else
1358                         videos4js << '""'
1359                     end
1360                 end
1361             end
1362
1363             for sizeobj in $images_size
1364                 elements4js = []
1365                 videoswidths4js = []
1366                 videosheights4js = []
1367                 for file in entries
1368                     type = images.include?(file) ? 'image' : videos.include?(file) ? 'video' : nil
1369                     if type
1370                         if type == 'image'
1371                             index = images.index(file)
1372                             elements4js << '"' + fullscreen_images[sizeobj['name']][index] + '"'
1373                             videoswidths4js << "''"
1374                             videosheights4js << "''"
1375                         else
1376                             index = videos.index(file)
1377                             elements4js << '"' + fullscreen_videos[sizeobj['name']][index] + '"'
1378                             size = get_image_size("#{dest_dir}/#{fullscreen_videos[sizeobj['name']][index]}")
1379                             videoswidths4js << size[:x].to_s
1380                             videosheights4js << size[:y].to_s
1381                         end
1382                     end
1383                 end
1384
1385                 html = $html_images.collect { |l| l.clone }
1386                 hiddenimages4remotes = '<span style="display:none">' + thumbnail_images[sizeobj['name']][0..4].collect { |e| "<img src=\"#{e}\"/>" }.join('') + '</span>'
1387                 otherelements4js = ''
1388                 othersizes = []
1389                 for sizeobj2 in all_images_sizes
1390                     if sizeobj != sizeobj2
1391                         oe4js = []
1392                         for file in entries
1393                             type = images.include?(file) ? 'image' : videos.include?(file) ? 'video' : nil
1394                             if type
1395                                 if type == 'image'
1396                                     index = images.index(file)
1397                                     oe4js << '"' + fullscreen_images[sizeobj2['name']][index] + '"'
1398                                 else
1399                                     index = videos.index(file)
1400                                     oe4js << '"' + fullscreen_videos[sizeobj2['name']][index] + '"'
1401                                 end
1402                             end
1403                         end
1404                         otherelements4js += "var elements_#{size2js(sizeobj2['name'])} = new Array(" + oe4js.join(', ') + ");\n"
1405                         othersizes << "\"#{size2js(sizeobj2['name'])}\""
1406                     end
1407                 end
1408                 for i in html
1409                     i.gsub!(/~~images~~/, elements4js.join(', '))
1410                     i.gsub!(/~~types~~/, types4js.join(', '))
1411                     i.gsub!(/~~videos~~/, videos4js.join(', '))
1412                     i.gsub!(/~~videos_widths~~/, videoswidths4js.join(', '))
1413                     i.gsub!(/~~videos_heights~~/, videosheights4js.join(', '))
1414                     i.gsub!(/~~hidden_images_for_remotes~~/, hiddenimages4remotes)
1415                     i.gsub!(/~~other_images~~/, otherelements4js)
1416                     i.gsub!(/~~thumbnailspages~~/, element2thumbnailpage4js.collect { |e| "\"#{e}\"" }.join(', '))
1417                     i.gsub!(/~~other_sizes~~/, othersizes.join(', '))
1418                     i.gsub!(/~~captions~~/, captions4js.join(', '))
1419                     i.gsub!(/~~title~~/, quote_caption(xmldir.attributes['thumbnails-caption'] || utf8(File.basename(dir))))
1420                     if $flv_generator && videos.size > 0
1421                         i.sub!(/~~flowplayer_head_code~~/, '<script type="text/javascript" src="~~pathtobase~~flowplayer-3.1.4.min.js"></script>')
1422                         i.sub!(/~~flowplayer_active~~/, 'true')
1423                     else
1424                         i.sub!(/~~flowplayer_head_code~~/, '')
1425                         i.sub!(/~~flowplayer_active~~/, 'false')
1426                     end
1427
1428                     i.gsub!(/~~thumbnails~~/, '<a href="thumbnails-' + size2js(sizeobj['name']) + $htmlsuffix + '" id="thumbnails">' + defer_translation(N_('return to thumbnails')) + '</a>')
1429                     i.gsub!(/~~theme~~/, $theme)
1430                     i.gsub!(/~~current_size~~/, size2js(sizeobj['name']))
1431                     i.gsub!(/~~htmlsuffix~~/, $htmlsuffix)
1432                     i.gsub!(/~~madewith~~/, $madewith || '')
1433                     i.gsub!(/~~indexlink~~/, $indexlink || '')
1434                     substitute_addthis(i)
1435                     substitute_html_sizes(i, sizeobj, 'image', '')
1436                     substitute_navigation(i, xmldir)
1437                     substitute_pathtobase(i, xmldir)
1438                 end
1439                 save_html(html, "#{dest_dir}/image-#{size2js(sizeobj['name'])}")
1440             end
1441         end
1442     }
1443
1444     msg 3, ''
1445
1446     #- add attributes to <dir..> elements needing so
1447     if $mode != 'use_config'
1448         msg 3, _("\tfixating configuration file...")
1449         $xmldoc.elements.each('//dir') { |element|
1450             path = captionpath = element.attributes['path']
1451             descendant_element = nil
1452             #- search if there is at least one image or video down that dir; use workarounds to rexml slowness
1453             #- first, look down only one level, very fast
1454             first_desc = nil
1455             element.elements.each { |elem|
1456                 if first_desc.nil?
1457                     first_desc = elem
1458                 end
1459                 if elem.name == 'image' || elem.name == 'video'
1460                     descendant_element = elem
1461                     break
1462                 end
1463             }
1464             if descendant_element.nil?
1465                 #- if there was nothing or only directory down one level, look down the first subdir
1466                 if ! first_desc.nil?
1467                     first_desc.elements.each { |elem|
1468                         if elem.name == 'image' || elem.name == 'video'
1469                             descendant_element = elem
1470                             break
1471                         end
1472                     }
1473                 end
1474                 if descendant_element.nil?
1475                     #- if there was still nothing found, use complete albeit slow method
1476                     descendant_element = element.elements['descendant::image'] || element.elements['descendant::video']
1477                 end
1478             end
1479             if !descendant_element
1480                 msg 3, _("\t\tremoving %s, no element in it") % path
1481                 element.remove  #- means we have a directory with nothing interesting in it
1482             else
1483                 captionfile = "#{descendant_element.parent.attributes['path']}/#{descendant_element.attributes['filename']}"
1484                 basename = File.basename(path)
1485                 if element.elements['dir']
1486                     if !element.attributes['subdirs-caption']
1487                         element.add_attribute('subdirs-caption', basename)
1488                     end
1489                     if !element.attributes['subdirs-captionfile']
1490                         element.add_attribute('subdirs-captionfile', captionfile)
1491                     end
1492                 end
1493                 if element.child_byname_notattr('image', 'deleted') || element.child_byname_notattr('video', 'deleted')
1494                     if !element.attributes['thumbnails-caption']
1495                         element.add_attribute('thumbnails-caption', basename)
1496                     end
1497                     if !element.attributes['thumbnails-captionfile']
1498                         element.add_attribute('thumbnails-captionfile', captionfile)
1499                     end
1500                 end
1501             end
1502         }
1503     end
1504
1505     #- write down to disk config if necessary
1506     if $config_writeto
1507         ios = File.open($config_writeto, "w")
1508         $xmldoc.write(ios)
1509         ios.close
1510     end
1511
1512     if $forgui
1513         msg 3, _("completed necessary stuff for GUI, exiting.")
1514         return
1515     end
1516
1517     #- second pass to create index.html files and previous/next links
1518     info("creating index.html")
1519     msg 3, _("\trescanning directories to generate all 'index.html' files...")
1520
1521     #- recompute the memoization because elements mights have been removed (the ones with no element in them)
1522     optxpath = {}
1523     $xmldoc.elements.each('//dir') { |elem|
1524         optxpath[elem.attributes['path']] = elem
1525     }
1526
1527     examined_dirs.each { |dir|
1528         info("index.html: #{dir}|#{$source}")
1529
1530         xmldir = optxpath[utf8(dir)]
1531         if !xmldir || (xmldir.attributes['already-generated'] && !$force) || xmldir.attributes['deleted']
1532             next
1533         end
1534         dest_dir = make_dest_filename(dir.sub(/^#{Regexp.quote($source)}/, $dest))
1535
1536         previous_album = find_previous_album(xmldir)
1537         next_album = find_next_album(xmldir)
1538
1539         if xmldir.elements['dir']
1540             html = $html_index.collect { |l| l.clone }
1541             iterations = {}
1542             for i in html
1543                 caption = xmldir.attributes['subdirs-caption']
1544                 i.gsub!(/~~title~~/, quote_caption(caption))
1545                 substitute_navigation(i, xmldir)
1546                 substitute_pathtobase(i, xmldir)
1547                 discover_iterations(iterations, i)
1548             end
1549
1550             html_index = ''
1551             reset_iterations(iterations)
1552
1553             #- deal with "current" album (directs to "thumbnails" page)
1554             if xmldir.attributes['thumbnails-caption']
1555                 thumbnail = "#{dest_dir}/thumbnails-thumbnail.jpg"
1556                 gen_thumbnails_subdir(from_utf8(xmldir.attributes['thumbnails-captionfile']), xmldir, false,
1557                                       [ { 'filename' => thumbnail, 'size' => $albums_thumbnail_size } ], 'thumbnails')
1558                 html_index += run_iterations(iterations, 1)
1559                 caption = xmldir.attributes['thumbnails-caption']
1560                 html_index.gsub!(/~~image_iteration~~/, "<a href=\"thumbnails#{$htmlsuffix}\">" + img_element(thumbnail, caption) + '</a>')
1561                 html_index.gsub!(/~~caption_iteration~~/, quote_caption(caption))
1562             end
1563
1564             #- deal with sub-albums (direct to subdirs/index.html pages)
1565             xmldir.elements.each('dir') { |child|
1566                 if child.attributes['deleted']
1567                     next
1568                 end
1569                 subdir = make_dest_filename(from_utf8(File.basename(child.attributes['path'])))
1570                 thumbnail = "#{dest_dir}/thumbnails-#{subdir}.jpg"
1571                 html_index += run_iterations(iterations, 1)
1572                 captionfile, caption = find_subalbum_caption_info(child)
1573                 gen_thumbnails_subdir(captionfile, child, false,
1574                                       [ { 'filename' => thumbnail, 'size' => $albums_thumbnail_size } ], find_subalbum_info_type(child))
1575                 html_index.gsub!(/~~caption_iteration~~/, quote_caption(caption))
1576                 html_index.gsub!(/~~image_iteration~~/, "<a href=\"#{subdir}/index#{$htmlsuffix}\">" + img_element(thumbnail, caption) + '</a>')
1577             }
1578
1579             html_index += close_iterations(iterations)
1580
1581             for i in html
1582                 i.gsub!(/~~thumbnails~~/, html_index)
1583                 i.gsub!(/~~madewith~~/, $madewith || '')
1584                 i.gsub!(/~~indexlink~~/, $indexlink || '')
1585                 substitute_addthis(i)
1586             end
1587
1588         else
1589             html = html_reload_to_thumbnails
1590         end
1591
1592         save_html(html, "#{dest_dir}/index")
1593         if $multi_languages
1594             #- in case MultiViews will not work, generate some compat
1595             ios = File.open("#{dest_dir}/index.html", "w")
1596             ios.write("<html><head><meta http-equiv=\"refresh\" content=\"0.1;url=index.#{$multi_languages[1]}.html\"></head></html>")
1597             ios.close
1598         end
1599
1600         #- substitute multiple "return to albums", previous/next correctly
1601         #- the following two statements are dramatical optimizations to executing for each substInFile callback
1602         dirpresent = xmldir.elements['dir']
1603         parentname = xmldir.parent.name
1604         if xmldir.child_byname_notattr('image', 'deleted') || xmldir.child_byname_notattr('video', 'deleted')
1605             for suffix in [ '', '-nojs' ]
1606                 for sizeobj in $images_size
1607                     Dir.glob("#{dest_dir}/thumbnails-#{size2js(sizeobj['name'])}#{suffix}-*.html") do |file|
1608                         #- unroll translations, they are costly if rerun for each line of files
1609                         rta = find_translation_for_file(file, N_('return to albums'))
1610                         pa = find_translation_for_file(file, N_('previous album'))
1611                         na = find_translation_for_file(file, N_('next album'))
1612                         substInFile(file) { |line|
1613                             sub_previous_next_album(file, previous_album, next_album, line, pa, na)
1614                             if dirpresent
1615                                 line.sub!(/~~return_to_albums~~/, '<a href="index' + $htmlsuffix + '">' + rta + '</a>')
1616                             else
1617                                 if parentname == 'dir'
1618                                     line.sub!(/~~return_to_albums~~/, '<a href="../index' + $htmlsuffix + '">' + rta + '</a>')
1619                                 else
1620                                     line.sub!(/~~return_to_albums~~/, '')
1621                                 end
1622                             end
1623                             line
1624                         }
1625                     end
1626                     if suffix == '' && xmldir.child_byname_notattr('image', 'deleted')
1627                         Dir.glob("#{dest_dir}/image-#{size2js(sizeobj['name'])}*.html") do |file|
1628                             pa = find_translation_for_file(file, N_('previous album'))
1629                             na = find_translation_for_file(file, N_('next album'))
1630                             substInFile(file) { |line|
1631                                 sub_previous_next_album(file, previous_album, next_album, line, pa, na)
1632                             }
1633                         end
1634                     end
1635                 end
1636             end
1637         end
1638     }
1639
1640     msg 3, _(" all done.")
1641 end
1642
1643 handle_options
1644 read_config
1645 check_installation
1646
1647 build_html_skeletons
1648
1649 walk_source_dir
1650 exit(0)