b40d6f928756a51b0a286a0eaac427526c38b349
[booh] / 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) 2004-2006 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 require 'gettext'
24 include GetText
25 require 'rexml/document'
26 include REXML
27
28 require 'booh/booh-lib'
29 require 'booh/html-merges'
30
31 #- bind text domain as soon as possible because some _() functions are called early to build data structures
32 bindtextdomain("booh")
33
34 #- options
35 $options = [
36     [ '--help',          '-h', GetoptLong::NO_ARGUMENT,       _("Get help message") ],
37     [ '--version',       '-V', GetoptLong::NO_ARGUMENT,       _("Print version and exit") ],
38
39     [ '--source',        '-s', GetoptLong::REQUIRED_ARGUMENT, _("Directory which contains original images/videos as files or subdirs") ],
40     [ '--destination',   '-d', GetoptLong::REQUIRED_ARGUMENT, _("Directory which will contain the web-album") ],
41 #    [ '--clean',         '-c', GetoptLong::NO_ARGUMENT,       _("Clean destination directory") ],
42
43     [ '--theme',         '-t', GetoptLong::REQUIRED_ARGUMENT, _("Select HTML theme to use") ],
44     [ '--config',        '-C', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing images and videos within directories with captions") ],
45     [ '--config-skel',   '-k', GetoptLong::REQUIRED_ARGUMENT, _("Filename where the script will output a config skeleton") ],
46     [ '--merge-config',  '-M', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing, where to merge new/removed images/videos from --source, and change theme info") ],
47     [ '--merge-config-onedir',  '-O', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing, for merging the subdir specified with --dir") ],
48     [ '--merge-config-subdirs', '-U', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing, for merging the new subdirs down the subdir specified with --dir") ],
49     [ '--dir',           '-D', GetoptLong::REQUIRED_ARGUMENT, _("Directory for merge with --merge-config-onedir or --merge-config-subdirs") ],
50     [ '--use-config',    '-u', GetoptLong::REQUIRED_ARGUMENT, _("File containing config listing, where to change theme info") ],
51     [ '--force',         '-f', GetoptLong::NO_ARGUMENT,       _("Force generation of album even if the GUI marked some directories as already generated") ],
52
53     [ '--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)") ],
54     [ '--thumbnails-per-row', '-T', GetoptLong::REQUIRED_ARGUMENT, _("Specify the amount of thumbnails per row in the thumbnails page (if applicable in theme)") ],
55     [ '--thumbnails-per-page', '-p', GetoptLong::REQUIRED_ARGUMENT, _("Specify the amount of thumbnails per page in the thumbnails page, after which split occurs") ],
56     [ '--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 pictures from non digital cameras are 3/2 when pictures from digital cameras are 4/3)") ],
57     [ '--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)") ],
58     [ '--made-with',     '-n', GetoptLong::REQUIRED_ARGUMENT, _("Specify the HTML markup to use on the bottom of pages for a small 'made with' message") ],
59     [ '--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") ],
60
61     [ '--mproc',         '-m', GetoptLong::REQUIRED_ARGUMENT, _("Specify the number of processors for multi-processors machines") ],
62
63     [ '--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)") ],
64
65     [ '--verbose-level', '-v', GetoptLong::REQUIRED_ARGUMENT, _("Set max verbosity level (0: errors, 1: warnings, 2: important messages, 3: other messages)") ],
66     [ '--info-pipe',     '-i', GetoptLong::REQUIRED_ARGUMENT, _("Name a file where to write information about what's going on (used by the GUI)") ],
67 ]
68
69 #- default values for some globals 
70 $switches = []
71 $stdout.sync = true
72 $no_identify = false
73 $ignore_videos = false
74 $forgui = false
75 $hardlinks_ok = true
76
77 def usage
78     puts _("Usage: %s [OPTION]...") % File.basename($0)
79     $options.each { |ary|
80         printf " %3s, %-18s %s\n", ary[1], ary[0], ary[3]
81     }
82 end
83
84 def handle_options
85     parser = GetoptLong.new
86     parser.set_options(*$options.collect { |ary| ary[0..2] })
87     begin
88         parser.each_option do |name, arg|
89             case name
90             when '--help'
91                 usage
92                 exit(0)
93
94             when '--version'
95                 puts _("Booh version %s
96
97 Copyright (c) 2005 Guillaume Cottenceau.
98 This is free software; see the source for copying conditions.  There is NO
99 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.") % $VERSION
100
101                 exit(0)
102
103             when '--source'
104                 $source = File.expand_path(arg.sub(%r|/$|, ''))
105                 if !File.directory?($source)
106                     die _("Argument to --source must be a directory")
107                 end
108             when '--destination'
109                 $dest = File.expand_path(arg.sub(%r|/$|, ''))
110                 if File.exists?($dest) && !File.directory?($dest)
111                     die _("If --destination exists, it must be a directory")
112                 end
113                 if $dest != make_dest_filename($dest)
114                     die _("Sorry, destination directory can't contain non simple alphanumeric characters.")
115                 end
116 #            when '--clean'
117 #                system("rm -rf #{$dest}")
118
119             when '--theme'
120                 $theme = arg
121             when '--config'
122                 arg = File.expand_path(arg)
123                 if File.readable?(arg)
124                     $xmldoc = REXML::Document.new File.new(arg)
125                     $mode = 'use_config'
126                 else
127                     die _('Config file does not exist or is unreadable.')
128                 end
129             when '--config-skel'
130                 arg = File.expand_path(arg)
131                 if File.exists?(arg)
132                     if File.directory?(arg)
133                         die _("Config skeleton file (%s) already exists and is a directory! Please change the filename.") % arg
134                     else
135                         msg 1, _("Config skeleton file already exists, backuping to %s.backup") % arg
136                         File.rename(arg, "#{arg}.backup")
137                     end
138                 end
139                 $config_writeto = arg
140                 $mode = 'gen_config'
141             when '--merge-config'
142                 arg = File.expand_path(arg)
143                 if File.readable?(arg)
144                     msg 2, _("Merge config notice: backuping current config file to %s.backup") % arg
145                     $xmldoc = REXML::Document.new File.new(arg)
146                     File.rename(arg, "#{arg}.backup")
147                     $config_writeto = arg
148                     $mode = 'merge_config'
149                 else
150                     die _('Config file does not exist or is unreadable.')
151                 end
152             when '--merge-config-onedir'
153                 arg = File.expand_path(arg)
154                 if File.readable?(arg)
155                     msg 2, _("Merge config notice: backuping current config file to %s.backup") % arg
156                     $xmldoc = REXML::Document.new File.new(arg)
157                     File.rename(arg, "#{arg}.backup")
158                     $config_writeto = arg
159                     $mode = 'merge_config_onedir'
160                 else
161                     die _('Config file does not exist or is unreadable.')
162                 end
163             when '--merge-config-subdirs'
164                 arg = File.expand_path(arg)
165                 if File.readable?(arg)
166                     msg 2, _("Merge config notice: backuping current config file to %s.backup") % arg
167                     $xmldoc = REXML::Document.new File.new(arg)
168                     File.rename(arg, "#{arg}.backup")
169                     $config_writeto = arg
170                     $mode = 'merge_config_subdirs'
171                 else
172                     die _('Config file does not exist or is unreadable.')
173                 end
174             when '--dir'
175                 arg = File.expand_path(arg)
176                 if !File.readable?(arg)
177                     die _('Specified directory to merge with --dir is not readable')
178                 else
179                     $onedir = arg
180                 end
181             when '--use-config'
182                 arg = File.expand_path(arg)
183                 if File.readable?(arg)
184                     msg 2, _("Use config notice: backuping current config file to %s.backup") % arg
185                     $xmldoc = REXML::Document.new File.new(arg)
186                     File.rename(arg, "#{arg}.backup")
187                     $config_writeto = arg
188                     $mode = 'use_config_changetheme'
189                 else
190                     die _('Config file does not exist or is unreadable.')
191                 end
192
193             when '--sizes'
194                 $limit_sizes = arg
195
196             when '--thumbnails-per-row'
197                 $N_per_row = arg
198
199             when '--thumbnails-per-page'
200                 $N_per_page = arg
201
202             when '--optimize-for-32'
203                 $optimize_for_32 = true
204
205             when '--made-with'
206                 $madewith = arg
207
208             when '--index-link'
209                 $indexlink = arg
210
211             when '--comments-format'
212                 $commentsformat = arg
213
214             when '--force'
215                 $force = true
216
217             when '--mproc'
218                 $mproc = arg.to_i
219                 $pids = []
220
221             when '--for-gui'
222                 $forgui = true
223
224             when '--verbose-level'
225                 $verbose_level = arg.to_i
226
227             when '--info-pipe'
228                 $info_pipe = File.open(arg, File::WRONLY)
229                 $info_pipe.sync = true
230             end
231         end
232     rescue
233         puts $!
234         usage
235         exit(1)
236     end
237
238     if !$source && $xmldoc
239         $source = from_utf8($xmldoc.root.attributes['source']).sub(%r|/$|, '')
240         $dest = from_utf8($xmldoc.root.attributes['destination']).sub(%r|/$|, '')
241         $theme ||= $xmldoc.root.attributes['theme']
242         $limit_sizes ||= $xmldoc.root.attributes['limit-sizes']
243         if $mode == 'use_config' || $mode =~ /^merge_config/
244             $optimize_for_32 = !$xmldoc.root.attributes['optimize-for-32'].nil?
245             $N_per_row = $xmldoc.root.attributes['thumbnails-per-row']
246             $N_per_page = $xmldoc.root.attributes['thumbnails-per-page']
247             $madewith = $xmldoc.root.attributes['made-with']
248             $indexlink = $xmldoc.root.attributes['index-link']
249         end
250     end
251
252     if $mode == 'merge_config_onedir' && !$onedir
253         die _("Missing --dir for --merge-config-onedir")
254     end
255     if $mode == 'merge_config_subdirs' && !$onedir
256         die _("Missing --dir for --merge-config-subdirs")
257     end
258
259     if !$source
260         usage
261         exit(0)
262     end
263     if !$dest
264         die _("Missing --destination parameter.")
265     end
266     if !$theme
267         $theme = 'simple'
268     end
269
270     select_theme($theme, $limit_sizes, $optimize_for_32, $N_per_row)
271
272     if !$xmldoc
273         additional_params = ''
274         if $limit_sizes
275             additional_params += "limit-sizes='#{$limit_sizes}'"
276         end
277         if $optimize_for_32
278             additional_params += " optimize-for-32='true'"
279         end
280         if $N_per_row
281             additional_params += " thumbnails-per-row='#{$N_per_row}'"
282         end
283         if $N_per_page
284             additional_params += " thumbnails-per-page='#{$N_per_page}'"
285         end
286         if $madewith
287             additional_params += " made-with='#{$madewith}'"
288         end
289         if $indexlink
290             additional_params += " index-link='#{$indexlink}'"
291         end
292         $xmldoc = Document.new "<booh version='#{$VERSION}' source='#{utf8($source)}' destination='#{utf8($dest)}' theme='#{$theme}' #{additional_params}/>"
293         $xmldoc << XMLDecl.new(XMLDecl::DEFAULT_VERSION, $CURRENT_CHARSET)
294         $mode = 'gen_config'
295     end
296
297     if $mode == 'merge_config' || $mode == 'use_config_changetheme'
298         $xmldoc.root.add_attribute('theme', $theme)
299         $xmldoc.root.add_attribute('version', $VERSION)
300         if $limit_sizes
301             $xmldoc.root.add_attribute('limit-sizes', $limit_sizes)
302         else
303             $xmldoc.root.delete_attribute('limit-sizes')
304         end
305         if $optimize_for_32
306             $xmldoc.root.add_attribute('optimize-for-32', 'true')
307         else
308             $xmldoc.root.delete_attribute('optimize-for-32')
309         end
310         if $N_per_row
311             $xmldoc.root.add_attribute('thumbnails-per-row', $N_per_row)
312         else
313             $xmldoc.root.delete_attribute('thumbnails-per-row')
314         end
315         if $N_per_page
316             $xmldoc.root.add_attribute('thumbnails-per-page', $N_per_page)
317         else
318             $xmldoc.root.delete_attribute('thumbnails-per-page')
319         end
320         if $madewith
321             $xmldoc.root.add_attribute('made-with', $madewith)
322         else
323             $xmldoc.root.delete_attribute('made-with')
324         end
325         if $indexlink
326             $xmldoc.root.add_attribute('index-link', $indexlink)
327         else
328             $xmldoc.root.delete_attribute('index-link')
329         end
330     end
331
332     if $madewith
333         $madewith = $madewith.gsub('%booh', '"http://zarb.org/~gc/html/booh.html"')
334     end
335 end
336
337 def read_config
338     $config = {}
339 end
340
341 def write_config
342 end
343
344 def info(value)
345     if $info_pipe
346         $info_pipe.puts(value)
347     end
348 end
349
350 def die(value)
351     if $info_pipe
352         $info_pipe.puts("die: " + value)
353     end
354     die_ value
355 end
356
357 def check_installation
358     if !system("which convert >/dev/null 2>/dev/null")
359         die _("The program 'convert' is needed. Please install it. 
360 It is generally available with the 'ImageMagick' software package.")
361     end
362     if !system("which identify >/dev/null 2>/dev/null")
363         msg 1, _("the program 'identify' is needed to get images sizes and EXIF data. Please install it.
364 It is generally available with the 'ImageMagick' software package.")
365         $no_identify = true
366     end
367     missing = %w(transcode mencoder).delete_if { |prg| system("which #{prg} >/dev/null 2>/dev/null") }
368     if missing != []
369         msg 1, _("the following program(s) are needed to handle videos: '%s'. Videos will be ignored.") % missing.join(', ')
370         $ignore_videos = true
371     end
372 end
373
374 def replace_line(surround, keyword, line)
375     begin
376         contents = eval "$#{keyword}"
377         line.sub!(/#{surround}#{keyword}#{surround}/, contents)
378     rescue TypeError
379         die _("No '%s' found for substitution") % keyword
380     end
381 end
382
383 def build_html_skeletons
384     $html_images     = File.open("#{$FPATH}/themes/#{$theme}/skeleton_image.html").readlines
385     $html_thumbnails = File.open("#{$FPATH}/themes/#{$theme}/skeleton_thumbnails.html").readlines
386     $html_index      = File.open("#{$FPATH}/themes/#{$theme}/skeleton_index.html").readlines
387     for line in $html_images + $html_thumbnails + $html_index
388         while line =~ /~~~(\w+)~~~/
389             replace_line('~~~', $1, line)
390         end
391     end
392 end
393
394 def find_caption_value(xmldir, filename)
395     if cap = xmldir.elements["*[@filename='#{utf8(filename)}']"].attributes['caption']
396         return cap.gsub("\n", '<br/>')
397     else
398         return nil
399     end
400 end
401
402 def find_captions(xmldir, images)
403     return images.collect { |img| find_caption_value(xmldir, img) }
404 end
405
406 #- stolen from CVSspam
407 def urlencode(text)
408   text.sub(/[^a-zA-Z0-9\-,.*_\/]/) do
409     "%#{sprintf('%2X', $&[0])}"
410   end
411 end
412
413 def all_images_sizes
414     return $limit_sizes =~ /original/ ? $images_size + [ { 'name' => 'original' } ] : $images_size
415 end
416
417 def html_reload_to_thumbnails
418     html_reload_to_thumbnails = $preferred_size_reloader.clone
419     html_reload_to_thumbnails.gsub!(/~~theme~~/, $theme)
420     html_reload_to_thumbnails.gsub!(/~~default_size~~/, $default_size['name'])
421     html_reload_to_thumbnails.gsub!(/~~all_sizes~~/, all_images_sizes.collect { |s| "\"#{size2js(s['name'])}\"" }.join(', '))
422     size_auto_chooser = '';
423     all_images_sizes.sort { |a,b| b['optimizedforwidth'].to_i <=> a['optimizedforwidth'].to_i }.
424                      each { |s| size_auto_chooser += "if (w + 50 > #{s['optimizedforwidth']}) { return 'thumbnails-#{size2js(s['name'])}-0.html'; }\n" }
425     html_reload_to_thumbnails.gsub!(/~~size_auto_chooser~~/, size_auto_chooser)
426     return html_reload_to_thumbnails
427 end
428
429 def discover_iterations(iterations, line)
430     if line =~ /~~iterate(\d)_open(_max(\d+|N))?~~/
431         for iter in iterations.values
432             if iter['open']
433                 iter['open'] = false
434                 iter['close_wait'] = $1.to_i
435             end
436         end
437         max = $3 == 'N' ? ($N_per_row || $default_N) : $3
438         iterations[$1.to_i] = { 'open' => true, 'max' => max, 'opening' => '', 'closing' => '' }
439         if $1.to_i == 1
440             line.sub!(/.*/, '~~thumbnails~~')
441         else
442             line.sub!(/.*/, '')
443         end
444     elsif line =~ /~~iterate(\d)_close~~/
445         iterations[$1.to_i]['open']  = false;
446         iterations[$1.to_i]['close'] = true;
447         line.sub!(/.*/, '')
448     else
449         for iter in iterations.values
450             if iter['open']
451                 iter['opening'] += line
452                 line.sub!(/.*/, '')
453             end
454             if !iter['close'] && iter['close_wait'] && iterations[iter['close_wait']]['close']
455                 iter['closing'] += line
456                 line.sub!(/.*/, '')
457             end
458         end
459     end
460 end
461
462 def reset_iterations(iterations)
463     for iter in iterations.values
464         iter['value'] = 0
465     end
466 end
467
468 def run_iterations(iterations, amount)
469     html = ''
470     should_rerun = false
471     for level in iterations.keys.sort
472         if iterations[level]['value'] == 0
473             html += iterations[level]['opening']
474         elsif level == iterations.keys.max
475             if !iterations[level]['max'] || iterations[level]['max'] && iterations[level]['value'] + amount <= iterations[level]['max'].to_i
476                 html += iterations[level]['opening']
477             else
478                 should_rerun = true
479             end
480         end
481         iterations[level]['value'] += amount
482         if iterations[level]['max'] && iterations[level]['value'] > iterations[level]['max'].to_i
483             iterations[level]['value'] = 0
484             iterations[level-1]['value'] = 0
485             html += iterations[level-1]['closing']
486         end
487     end
488     if should_rerun
489         return html + run_iterations(iterations, amount)
490     else
491         return html
492     end
493 end
494
495 def close_iterations(iterations)
496     html = ''
497     for level in iterations.keys.sort.reverse
498         html += iterations[level]['closing']
499     end
500     return html
501 end
502
503 def img_element(fullpath)
504     if size = get_image_size(fullpath)
505         sizespec = 'width="' + size[:x].to_s + '" height="' + size[:y].to_s + '"'
506     else
507         sizespec = ''
508     end
509     return '<img src="' + File.basename(fullpath) + '" ' + sizespec + ' alt="image"/>'
510 end
511
512 def size2js(name)
513     return name.gsub(/-/, '')
514 end
515
516 def substitute_html_sizes(html, sizeobj, type, suffix)
517     sizestrings = []
518     if $images_size.length > 1 || (type == 'image' && $limit_sizes =~ /original/)
519         for sizeobj2 in $images_size
520             if sizeobj != sizeobj2
521                 if type == 'thumbnails'
522                     sizestrings << '<a href="thumbnails-' + size2js(sizeobj2['name']) + suffix + '.html">' + sizename(sizeobj2['name']) + '</a>'
523                 else
524                     sizestrings << '<a id="link' + size2js(sizeobj2['name']) + '">' + sizename(sizeobj2['name']) + '</a>'
525                 end
526             else
527                 sizestrings << sizename(sizeobj2['name'])
528             end
529         end
530         if type == 'image' && $limit_sizes =~ /original/
531             sizestrings << '<a id="linkoriginal" target="newframe">' + sizename('original') + '</a>'
532         end
533     end
534     html.sub!(/~~sizes~~(.+)~~/) { sizestrings.join($1) }
535 end
536
537 def xmldir2destdir(xmldir)
538     return make_dest_filename(from_utf8(File.basename(xmldir.attributes['path'])))
539 end
540
541 def find_previous_album(xmldir)
542     relative_pos = ''
543     begin
544         #- move to previous dir element if exists
545         if prevelem = xmldir.previous_element_byname_notattr('dir', 'deleted')
546             xmldir = prevelem
547             relative_pos += '../' + xmldir2destdir(xmldir) + '/'
548             child = nil
549             #- after having moved to previous dir, we need to go down last subdir until the last one
550             while child = xmldir.elements['dir']
551                 while nextchild = child.next_element_byname_notattr('dir', 'deleted')
552                     child = nextchild
553                 end
554                 relative_pos += xmldir2destdir(child) + '/'
555                 xmldir = child
556             end
557         else
558             #- previous dir doesn't exist, move to previous dir element if exists
559             xmldir = xmldir.parent
560             if xmldir.name == 'dir' && !xmldir.attributes['deleted']
561                 relative_pos += '../'
562             else
563                 return nil
564             end
565         end
566     end while !xmldir.child_byname_notattr('image', 'deleted') && !xmldir.child_byname_notattr('video', 'deleted')
567     return File.reduce_path(relative_pos)
568 end
569
570 def find_next_album(xmldir)
571     relative_pos = ''
572     begin
573         #- first child dir element (catches when initial xmldir has both thumbnails and subdirs)
574         if firstchild = xmldir.child_byname_notattr('dir', 'deleted')
575             xmldir = firstchild
576             relative_pos += xmldir2destdir(xmldir) + '/'
577         #- next brother
578         elsif nextbro = xmldir.next_element_byname_notattr('dir', 'deleted')
579             xmldir = nextbro
580             relative_pos += '../' + xmldir2destdir(xmldir) + '/'
581         else
582             #- go up until we have a next brother or we are finished
583             begin
584                 xmldir = xmldir.parent
585                 relative_pos += '../'
586             end while xmldir && !xmldir.next_element_byname_notattr('dir', 'deleted')
587             if xmldir
588                 xmldir = xmldir.next_element_byname('dir')
589                 relative_pos += '../' + xmldir2destdir(xmldir) + '/'
590             else
591                 return nil
592             end
593         end
594     end while !xmldir.child_byname_notattr('image', 'deleted') && !xmldir.child_byname_notattr('video', 'deleted')
595     return File.reduce_path(relative_pos)
596 end
597
598 def sub_previous_next_album(previous_album, next_album, html)
599     if previous_album
600         html.gsub!(/~~previous_album~~/, '<a href="' + previous_album + 'thumbnails.html">' + utf8(_('previous album')) + '</a>')
601         html.gsub!(/~~ifprevious_album\?~~(.+?)~~fi~~/) { $1 }
602     else
603         html.gsub!(/~~previous_album~~/, '')
604         html.gsub!(/~~ifprevious_album\?~~(.+?)~~fi~~/, '')
605     end
606     if next_album
607         html.gsub!(/~~next_album~~/, '<a href="' + next_album + 'thumbnails.html">' + utf8(_('next album')) + '</a>')
608         html.gsub!(/~~ifnext_album\?~~(.+?)~~fi~~/) { $1 }
609     else
610         html.gsub!(/~~next_album~~/, '')
611         html.gsub!(/~~ifnext_album\?~~(.+?)~~fi~~/, '')
612     end
613     return html
614 end
615
616 def walk_source_dir
617
618     #- preprocess the path->dir, rexml is very slow with that; we seem to improve speed by 7%
619     optxpath = {}
620     $xmldoc.elements.each('//dir') { |elem|
621         optxpath[elem.attributes['path']] = elem
622     }
623
624     examined_dirs = nil
625     if $mode == 'merge_config_onedir'
626         examined_dirs = [ $onedir ]
627     elsif $mode == 'merge_config_subdirs'
628         examined_dirs = `find '#{$onedir}' -type d -follow`.sort.collect { |v| v.chomp }.delete_if { |v| optxpath.has_key?(utf8(v)) }
629     else
630         examined_dirs = `find '#{$source}' -type d -follow`.sort.collect { |v| v.chomp }
631         if $mode == 'merge_config'
632             $xmldoc.elements.each('//dir') { |elem|
633                 if ! examined_dirs.include?(elem.attributes['path'])
634                     msg 2, _("Merging config: removing directory %s from config, isn't on filesystem anymore") % elem.attributes['path']
635                     elem.remove
636                 end
637             }
638         end
639     end
640     info("directories: #{examined_dirs.length}, sizes: #{$images_size.length}")
641
642     examined_dirs.each { |dir|
643         if dir =~ /'/
644             die _("Source directory or sub-directories can't contain a single-quote character, sorry: %s") % dir
645         end
646         if $mode !~ /^use_config/
647             Dir.entries(dir).each { |file|
648                 if file =~ /['"\[\]]/
649                     die _("Files can't contain any of the characters ', \", [ or ], sorry: %s") % "#{dir}/#{file}"
650                 end
651             }
652         end
653     }
654
655     examined_dirs.each { |dir|
656         if File.basename(dir) =~ /^\./
657             msg 1, _("Ignoring directory %s, begins with a dot (indicating a hidden directory)") % dir
658             next
659         end
660
661         dest_dir = make_dest_filename(dir.sub(/^#{Regexp.quote($source)}/, $dest))
662
663         #- place xml document on proper node if exists, else create
664         xmldir = optxpath[utf8(dir)]
665         if $mode == 'use_config' || $mode == 'use_config_changetheme'
666             if !xmldir || (xmldir.attributes['already-generated'] && !$force) || xmldir.attributes['deleted']
667                 info("walking: #{dir}|#{$source}, 0 elements")
668                 if xmldir && xmldir.attributes['deleted']
669                     system("rm -rf '#{dest_dir}'")
670                 end
671                 next
672             end
673         else
674             if $mode == 'gen_config' || (($mode == 'merge_config' || $mode == 'merge_config_subdirs') && !xmldir)
675                 #- add the <dir..> element if necessary
676                 parent = File.dirname(dir)
677                 xmldir = $xmldoc.elements["//dir[@path='#{utf8(parent)}']"]
678                 if !xmldir
679                     xmldir = $xmldoc.root
680                 end
681                 #- need to remove the already-generated mark of the parent because of the sub-albums page containing now one more element
682                 xmldir.delete_attribute('already-generated')
683                 xmldir = optxpath[utf8(dir)] = xmldir.add_element('dir', { 'path' => utf8(dir) })
684             end
685         end
686         xmldir.delete_attribute('already-generated')
687
688         #- read images/videos entries from config or from directories depending on mode
689         entries = []
690         if $mode == 'use_config' || $mode == 'use_config_changetheme'
691             msg 2, _("Handling %s from config list...") % dir
692             xmldir.elements.each { |element|
693                 if %w(image video).include?(element.name) && !element.attributes['deleted']
694                     entries << from_utf8(element.attributes['filename'])
695                 end
696             }
697         else
698             msg 2, _("Examining %s...") % dir
699             entries = Dir.entries(dir).sort
700             #- populate config in case of gen_config, add new files in case of merge_config
701             for file in entries
702                 if file =~ /['"\[\]]/
703                     msg 1, _("Ignoring %s, contains one of forbidden characters: '\"[]") % "#{dir}/#{file}"
704                 else
705                     type = entry2type(file)
706                     if type && !xmldir.elements["#{type}[@filename='#{utf8(file)}']"]
707                         #- hack: don't run identify (which is slow) if format only contains default %t
708                         if $commentsformat && type == 'image' && $commentsformat != '%t'
709                             comment = utf8(`identify -format "#{$commentsformat}" '#{dir}/#{file}'`.chomp.sub(/\.$/, ''))
710                         else
711                             comment = utf8cut(file.sub(/\.[^\.]+$/, ''), 18)
712                         end
713                         xmldir.add_element type, { "filename" => utf8(file), "caption" => comment }
714                     end
715                 end
716             end
717             if $mode != 'gen_config'
718                 #- cleanup removed files from config and reread entries from config to get proper ordering
719                 entries = []
720                 xmldir.elements.each { |element|
721                     fullpath = "#{dir}/#{from_utf8(element.attributes['filename'])}"
722                     if %w(image video).include?(element.name)
723                         if !File.readable?(fullpath)
724                             msg 1, _("Config merge: removing %s from config; use the backup file to retrieve caption info if this was a mistake") % fullpath
725                             xmldir.delete(element)
726                         elsif !element.attributes['deleted']
727                             entries << from_utf8(element.attributes['filename'])
728                         end
729                     end
730                 }
731                 #- if there is no more elements here, there is no album here anymore
732                 if !xmldir.child_byname_notattr('image', 'deleted') && !xmldir.child_byname_notattr('video', 'deleted')
733                     xmldir.delete_attribute('thumbnails-caption')
734                     xmldir.delete_attribute('thumbnails-captionfile')
735                 end
736             end
737         end
738         images = entries.find_all { |e| entry2type(e) == 'image' }
739         msg 3, _("\t%s images") % images.length
740         videos = entries.find_all { |e| entry2type(e) == 'video' }
741         msg 3, _("\t%s videos") % videos.length
742         info("walking: #{dir}|#{$source}, #{images.length + videos.length} elements")
743
744         system("mkdir -p '#{dest_dir}'")
745
746         #- generate .htaccess file
747         if !$forgui
748             ios = File.open("#{dest_dir}/.htaccess", "w")
749             ios.write("AddCharset UTF-8 .html\n")
750             if auth_user_file = xmldir.attributes['password-protect']
751                 msg 3, _("\tgenerating password protection file #{dest_dir}/.htaccess")
752                 ios.write("AuthType Basic\nAuthName \"protected area\"\nAuthUserFile #{auth_user_file}\nrequire valid-user\n")
753             end
754             ios.close
755         end
756
757         #- pass through if there are no images and videos
758         if images.size == 0 && videos.size == 0
759             if !$forgui
760                 #- cleanup old images/videos, especially if this directory contained images/videos previously.
761                 themestuff = Dir.entries("#{$FPATH}/themes/#{$theme}").
762                                 find_all { |e| !%w(. .. skeleton_image.html skeleton_thumbnails.html skeleton_index.html metadata CVS).include?(e) }
763                 if $mode != 'gen_config'
764                     rightful_images = [ '.htaccess' ]
765                     if xmldir.attributes['thumbnails-caption']
766                         rightful_images << 'thumbnails-thumbnail.jpg'
767                     end
768                     xmldir.elements.each('dir') { |child|
769                         if child.attributes['deleted']
770                             next
771                         end
772                         subdir = make_dest_filename(from_utf8(File.basename(child.attributes['path'])))
773                         rightful_images << "thumbnails-#{subdir}.jpg"
774                     }
775                     to_del = Dir.entries(dest_dir).find_all { |e| !File.directory?("#{dest_dir}/#{e}") && !rightful_images.include?(e) } - themestuff
776                     if to_del.size > 0
777                         system("rm -f " + to_del.collect { |e| "'#{dest_dir}/#{e}'" }.join(' '))
778                     end
779                 end
780                 
781                 #- copy any resource file that goes with the theme (css, images..)
782                 themestuff.each { |entry|
783                     if !File.exists?("#{dest_dir}/#{entry}")
784                         psys("cp '#{$FPATH}/themes/#{$theme}/#{entry}' '#{dest_dir}'")
785                     end
786                 }
787             end
788             next
789         end
790
791         msg 2, _("Outputting in %s...") % dest_dir
792
793         #- populate data structure with sizes from theme
794         for sizeobj in $images_size
795             fullscreen_images ||= {}
796             fullscreen_images[sizeobj['name']] = []
797             thumbnail_images ||= {}
798             thumbnail_images[sizeobj['name']] = []
799             thumbnail_videos ||= {}
800             thumbnail_videos[sizeobj['name']] = []
801         end
802         #- a special dummy size to keep 'references' to thumbnails in case of panorama, because the GUI will use the regular thumbnails
803         thumbnail_images['dont-delete-file-for-gui'] = []
804         if $limit_sizes =~ /original/
805             fullscreen_images['original'] = []
806         end
807
808         images.size >= 1 and msg 3, _("\tcreating images thumbnails...")
809
810         #- create thumbnails for images
811         images.each { |img|
812             info("processing element")
813             base_dest_img = dest_dir + '/' + make_dest_filename(img.sub(/\.[^\.]+$/, ''))
814             if $forgui
815                 thumbnail_dest_img = base_dest_img + "-#{$default_size['thumbnails']}.jpg"
816                 gen_thumbnails_element("#{dir}/#{img}", xmldir, true, [ { 'filename' => thumbnail_dest_img, 'size' => $default_size['thumbnails'] } ])
817             else
818                 todo = []
819                 elem = xmldir.elements["image[@filename='#{utf8(img)}']"]
820                 for sizeobj in $images_size
821                     size_fullscreen = sizeobj['fullscreen']
822                     size_thumbnails = sizeobj['thumbnails']
823                     fullscreen_dest_img = base_dest_img + "-#{size_fullscreen}.jpg"
824                     fullscreen_images[sizeobj['name']] << File.basename(fullscreen_dest_img)
825                     todo << { 'filename' => fullscreen_dest_img, 'size' => size_fullscreen }
826                     if pano = pano_amount(elem)
827                         thumbnail_images['dont-delete-file-for-gui'] << File.basename(base_dest_img + "-#{size_thumbnails}.jpg")
828                         size_thumbnails = size_thumbnails.sub(/(\d+)/) { ($1.to_i * pano).to_i }
829                     end
830                     thumbnail_dest_img = base_dest_img + "-#{size_thumbnails}.jpg"
831                     thumbnail_images[sizeobj['name']] << File.basename(thumbnail_dest_img)
832                     todo << { 'filename' => thumbnail_dest_img,  'size' => size_thumbnails }
833                 end
834                 gen_thumbnails_element("#{dir}/#{img}", xmldir, true, todo)
835                 if $limit_sizes =~ /original/
836                     fullscreen_images['original'] << img
837                 end
838                 destimg = "#{dest_dir}/#{img}"
839                 if $limit_sizes =~ /original/ && !File.exists?(destimg)
840                     if $hardlinks_ok
841                         if ! sys("ln '#{dir}/#{img}' '#{destimg}'")
842                             $hardlinks_ok = false
843                         end
844                     end
845                     if ! $hardlinks_ok
846                         psys("cp '#{dir}/#{img}' '#{destimg}'")
847                     end
848                 end
849             end
850         }
851
852         videos.size >= 1 and msg 3, _("\tcreating videos thumbnails...")
853
854         #- create thumbnails for videos
855         videos.each { |video|
856             info("processing element")
857             if $forgui
858                 thumbnail_dest_img = dest_dir + '/' + make_dest_filename(video.sub(/\.[^\.]+$/, '')) + "-#{$default_size['thumbnails']}.jpg"
859                 gen_thumbnails_element("#{dir}/#{video}", xmldir, true, [ { 'filename' => thumbnail_dest_img, 'size' => $default_size['thumbnails'] } ])
860             else
861                 todo = []
862                 for sizeobj in $images_size
863                     size_thumbnails = sizeobj['thumbnails']
864                     thumbnail_dest_img = dest_dir + '/' + make_dest_filename(video.sub(/\.[^\.]+$/, '')) + "-#{size_thumbnails}.jpg"
865                     thumbnail_videos[sizeobj['name']] << File.basename(thumbnail_dest_img)
866                     todo << { 'filename' => thumbnail_dest_img, 'size' => size_thumbnails }
867                 end
868                 gen_thumbnails_element("#{dir}/#{video}", xmldir, true, todo)
869             end
870             destvideo = "#{dest_dir}/#{video}"
871             if !File.exists?(destvideo)
872                 if $hardlinks_ok
873                     if ! sys("ln '#{dir}/#{video}' '#{destvideo}'")
874                         $hardlinks_ok = false
875                     end
876                 end
877                 if ! $hardlinks_ok
878                     psys("cp '#{dir}/#{video}' '#{destvideo}'")
879                 end
880             end
881         }
882
883         if !$forgui
884             themestuff = Dir.entries("#{$FPATH}/themes/#{$theme}").
885                              find_all { |e| !%w(. .. skeleton_image.html skeleton_thumbnails.html skeleton_index.html metadata CVS).include?(e) }
886
887             #- cleanup old images/videos (for when removing elements or sizes)
888             all_elements = fullscreen_images.collect { |e| e[1] }.flatten.
889                      concat(thumbnail_images.collect { |e| e[1] }.flatten).
890                      concat(thumbnail_videos.collect { |e| e[1] }.flatten).
891                      concat(videos).
892                      push('.htaccess')
893             to_del = Dir.entries(dest_dir).find_all { |e| !File.directory?("#{dest_dir}/#{e}") && !all_elements.include?(e) && e !~ /^thumbnails-\w+\.jpg/ } - themestuff
894             if to_del.size > 0
895                 msg 3, _("\tcleaning up: #{to_del.join(', ')}")
896                 system("rm -f " + to_del.collect { |e| "#{dest_dir}/#{e}" }.join(' '))
897             end
898
899             #- copy any resource file that goes with the theme (css, images..)
900             themestuff.each { |entry|
901                 if !File.exists?("#{dest_dir}/#{entry}")
902                     psys("cp '#{$FPATH}/themes/#{$theme}/#{entry}' '#{dest_dir}'")
903                 end
904             }
905
906             msg 3, _("\tgenerating HTML pages...")
907             #- fixup max per page
908             if $N_per_page && $N_per_row
909                 $N_per_page = $N_per_page.to_i / $N_per_row.to_i * $N_per_row.to_i
910             end
911
912             #- generate thumbnails*.html (page with thumbnails)
913             image2thumbnailpage4js = []
914             for sizeobj in $images_size
915                 info("processing size")
916                 html = $html_thumbnails.collect { |l| l.clone }
917                 iterations = {}
918                 for i in html
919                     i.sub!(/~~title~~/,
920                            xmldir.attributes['thumbnails-caption'] || utf8(File.basename(dir)))
921                     discover_iterations(iterations, i)
922                 end
923                 all_pages = []
924                 html_thumbnails = ''
925                 html_thumbnails_nojs = ''
926                 counter = 0
927                 pagecount = 0
928                 reset_iterations(iterations)
929                 for file in entries
930                     type = images.include?(file) ? 'image' : videos.include?(file) ? 'video' : nil
931                     if type
932                         if type == 'image' && elem = xmldir.elements["image[@filename='#{utf8(file)}']"]
933                             if pano = pano_amount(elem)
934                                 html_elem = run_iterations(iterations, pano)
935                                 counter += count = pano.ceil
936                                 html_elem.gsub!(/~~colspan~~/) { "colspan=\"#{count}\"" }
937                             else
938                                 html_elem = run_iterations(iterations, 1)
939                                 counter += 1
940                                 html_elem.gsub!(/~~colspan~~/, '')
941                             end
942                         else 
943                             html_elem = run_iterations(iterations, 1)
944                             counter += 1
945                             html_elem.gsub!(/~~colspan~~/, '')
946                         end
947                         if type == 'image'
948                             index = images.index(file)
949                             html_elem.gsub!(/~~caption_iteration~~/,
950                                             find_caption_value(xmldir, images[index]) || utf8(images[index]))
951                             html_elem.gsub!(/~~ifimage\?~~(.+?)~~fi~~/) { $1 }
952                             html_elem.gsub!(/~~ifvideo\?~~(.+?)~~fi~~/, '')
953                         elsif type == 'video'
954                             index = videos.index(file)
955                             if File.exists?("#{dest_dir}/#{thumbnail_videos[sizeobj['name']][index]}")
956                                 html_elem.gsub!(/~~image_iteration~~/,
957                                                 '<a href="' + videos[index] + '">' + img_element("#{dest_dir}/#{thumbnail_videos[sizeobj['name']][index]}") + '</a>')
958                             else
959                                 html_elem.gsub!(/~~image_iteration~~/,
960                                                 '<a href="' + videos[index] + '">' + utf8(_("(no preview)")) + '</a>')
961                             end
962                             html_elem.gsub!(/~~caption_iteration~~/, find_caption_value(xmldir, videos[index]) || utf8(videos[index]))
963                             html_elem.gsub!(/~~ifimage\?~~(.+?)~~fi~~/, '')
964                             html_elem.gsub!(/~~ifvideo\?~~(.+?)~~fi~~/) { $1 }
965                         end
966                         html_thumbnails += html_elem
967                         html_thumbnails_nojs += html_elem
968                         if type == 'image'
969                             html_thumbnails.gsub!(/~~image_iteration~~/,
970                                                   '<a href="image-' + size2js(sizeobj['name']) + '.html#current=' + fullscreen_images[sizeobj['name']][index] +
971                                                       '" name="' + fullscreen_images[sizeobj['name']][index] + '">' +
972                                                       img_element("#{dest_dir}/#{thumbnail_images[sizeobj['name']][index]}") + '</a>')
973                             html_thumbnails_nojs.gsub!(/~~image_iteration~~/, 
974                                                        '<a href="' + fullscreen_images[sizeobj['name']][index] + '" name="' + fullscreen_images[sizeobj['name']][index] + '">' +
975                                                            img_element("#{dest_dir}/#{thumbnail_images[sizeobj['name']][index]}") + '</a>')
976                             #- remember in which thumbnails page is this element, for image->thumbnail link
977                             if sizeobj == $images_size[0]
978                                 image2thumbnailpage4js << pagecount
979                             end
980                         end
981
982                         if counter == $N_per_page
983                             html_thumbnails      += close_iterations(iterations)
984                             html_thumbnails_nojs += close_iterations(iterations)
985                             all_pages << [ html_thumbnails, html_thumbnails_nojs ]
986                             html_thumbnails = ''
987                             html_thumbnails_nojs = ''
988                             counter = 0
989                             reset_iterations(iterations)
990                             pagecount += 1
991                         end
992                     end
993                 end
994                 if counter > 0
995                     html_thumbnails      += close_iterations(iterations)
996                     html_thumbnails_nojs += close_iterations(iterations)
997                     all_pages << [ html_thumbnails, html_thumbnails_nojs ]
998                 end
999                 for i in html
1000                     i.gsub!(/~~theme~~/, $theme)
1001                     i.gsub!(/~~current_size~~/, sizeobj['name'])
1002                     i.gsub!(/~~current_size_js~~/, size2js(sizeobj['name']))
1003                     i.gsub!(/~~madewith~~/, $madewith || '')
1004                     i.gsub!(/~~indexlink~~/, $indexlink || '')
1005                 end
1006                 html_nojs = html.collect { |l| l.clone }
1007                 pagecount = 0
1008                 for page in all_pages
1009                     html_thumbnails, html_thumbnails_nojs = page
1010                     final_html = html.collect { |l| l.clone }
1011                     mstuff = utf8(_("Pages: %s") % (pagecount > 0 ? "<a href=\"thumbnails-#{size2js(sizeobj['name'])}%nojs-#{pagecount - 1}.html\">" + _("<- Previous") + "</a> " : '') +
1012                                                    all_pages.collect_with_index { |p,idx| page == p ? idx + 1 : "<a href=\"thumbnails-#{size2js(sizeobj['name'])}%nojs-#{idx}.html\">#{idx + 1}</a>" }.join(', ') +
1013                                                    (pagecount < all_pages.size - 1 ? " <a href=\"thumbnails-#{size2js(sizeobj['name'])}%nojs-#{pagecount + 1}.html\">" + _("Next ->") + "</a> " : ''))
1014                     for i in final_html
1015                         i.sub!(/~~run_slideshow~~/,
1016                                images.size <= 1 ? '' : '<a href="image-' + size2js(sizeobj['name']) + '.html#run_slideshow=1">' + utf8(_("Run slideshow!"))+'</a>')
1017                         i.sub!(/~~thumbnails~~/, html_thumbnails)
1018                         if all_pages.size == 1
1019                             i.gsub!(/~~ifmultiplepages\?~~.*~~fi~~/, '')
1020                         else
1021                             i.gsub!(/~~ifmultiplepages\?~~(.+?)~~fi~~/) { $1 }
1022                             i.gsub!(/~~multiplepagesstuff~~/, mstuff.gsub('%nojs', ''))
1023                         end
1024                         substitute_html_sizes(i, sizeobj, 'thumbnails', "-#{pagecount}")
1025                     end
1026                     ios = File.open("#{dest_dir}/thumbnails-#{size2js(sizeobj['name'])}-#{pagecount}.html", "w")
1027                     ios.write(final_html)
1028                     ios.close
1029                     final_html_nojs = html_nojs.collect { |l| l.clone }
1030                     for i in final_html_nojs
1031                         i.sub!(/~~run_slideshow~~/, utf8(_("<i>Click on an image to view it larger</i>")))
1032                         i.sub!(/~~thumbnails~~/, html_thumbnails_nojs)
1033                         if all_pages.size == 1
1034                             i.gsub!(/~~ifmultiplepages\?~~.*~~fi~~/, '')
1035                         else
1036                             i.gsub!(/~~ifmultiplepages\?~~(.+?)~~fi~~/) { $1 }
1037                             i.gsub!(/~~multiplepagesstuff~~/, mstuff.gsub('%nojs', '-nojs'))
1038                         end
1039                         substitute_html_sizes(i, sizeobj, 'thumbnails', "-nojs-#{pagecount}")
1040                     end
1041                     ios = File.open("#{dest_dir}/thumbnails-#{size2js(sizeobj['name'])}-nojs-#{pagecount}.html", "w")
1042                     ios.write(final_html_nojs)
1043                     ios.close
1044                     pagecount += 1
1045                 end
1046             end
1047
1048             info("finished processing sizes")
1049
1050             #- generate "main" thumbnails.html page that will reload to correct size thanks to cookie
1051             ios = File.open("#{dest_dir}/thumbnails.html", "w")
1052             ios.write(html_reload_to_thumbnails)
1053             ios.close
1054
1055             #- generate image.html (page with fullscreen images)
1056             if images.size > 0
1057                 captions4js = find_captions(xmldir, images).collect { |e| e ? '"' + e.gsub('"', '\"') + '"' : '""' }.join(', ')
1058                 thumbnailspage4js = image2thumbnailpage4js.collect { |e| "\"#{e}\"" }.join(', ')
1059                 for sizeobj in $images_size
1060                     html = $html_images.collect { |l| l.clone }
1061                     images4js = fullscreen_images[sizeobj['name']].collect { |e| "\"#{e}\"" }.join(', ')
1062                     otherimages4js = ''
1063                     othersizes = []
1064                     for sizeobj2 in all_images_sizes
1065                         if sizeobj != sizeobj2
1066                             otherimages4js += "var images_#{size2js(sizeobj2['name'])} = new Array(" + fullscreen_images[sizeobj2['name']].collect { |e| "\"#{e}\"" }.join(', ') + ")\n"
1067                             othersizes << "\"#{size2js(sizeobj2['name'])}\""
1068                         end
1069                     end
1070                     for i in html
1071                         i.gsub!(/~~images~~/, images4js)
1072                         i.gsub!(/~~other_images~~/, otherimages4js)
1073                         i.gsub!(/~~thumbnailspages~~/, thumbnailspage4js)
1074                         i.gsub!(/~~other_sizes~~/, othersizes.join(', '))
1075                         i.gsub!(/~~captions~~/, captions4js)
1076                         i.gsub!(/~~title~~/, xmldir.attributes['thumbnails-caption'] || utf8(File.basename(dir)))
1077                         i.gsub!(/~~thumbnails~~/, '<a href="thumbnails-' + size2js(sizeobj['name']) + '.html" id="thumbnails">' + utf8(_('return to thumbnails')) + '</a>')
1078                         i.gsub!(/~~theme~~/, $theme)
1079                         i.gsub!(/~~current_size~~/, size2js(sizeobj['name']))
1080                         i.gsub!(/~~madewith~~/, $madewith || '')
1081                         i.gsub!(/~~indexlink~~/, $indexlink || '')
1082                         substitute_html_sizes(i, sizeobj, 'image', '')
1083                     end
1084                     ios = File.open("#{dest_dir}/image-#{size2js(sizeobj['name'])}.html", "w")
1085                     ios.write(html)
1086                     ios.close
1087                 end
1088             end
1089         end
1090     }
1091
1092     msg 3, ''
1093
1094     #- add attributes to <dir..> elements needing so
1095     if $mode != 'use_config'
1096         msg 3, _("\tfixating configuration file...")
1097         $xmldoc.elements.each('//dir') { |element|
1098             path = captionpath = element.attributes['path']
1099             descendant_element = element.elements['descendant::image'] || element.elements['descendant::video']
1100             if !descendant_element
1101                 msg 3, _("\t\tremoving %s, no element in it") % path
1102                 element.remove  #- means we have a directory with nothing interesting in it
1103             else
1104                 captionfile = "#{descendant_element.parent.attributes['path']}/#{descendant_element.attributes['filename']}"
1105                 basename = File.basename(path)
1106                 if element.elements['dir']
1107                     if !element.attributes['subdirs-caption']
1108                         element.add_attribute('subdirs-caption', basename)
1109                     end
1110                     if !element.attributes['subdirs-captionfile']
1111                         element.add_attribute('subdirs-captionfile', captionfile)
1112                     end
1113                 end
1114                 if element.child_byname_notattr('image', 'deleted') || element.child_byname_notattr('video', 'deleted')
1115                     if !element.attributes['thumbnails-caption']
1116                         element.add_attribute('thumbnails-caption', basename)
1117                     end
1118                     if !element.attributes['thumbnails-captionfile']
1119                         element.add_attribute('thumbnails-captionfile', captionfile)
1120                     end
1121                 end
1122             end
1123         }
1124     end
1125
1126     #- write down to disk config if necessary
1127     if $config_writeto
1128         ios = File.open($config_writeto, "w")
1129         $xmldoc.write(ios, 0)
1130         ios.close
1131     end
1132
1133     if $forgui
1134         msg 3, _(" completed necessary stuff for GUI, exiting.")
1135         return
1136     end
1137
1138     #- second pass to create index.html files and previous/next links
1139     info("creating index.html")
1140     msg 3, _("\trescanning directories to generate all 'index.html' files...")
1141
1142     #- recompute the memoization because elements mights have been removed (the ones with no element in them)
1143     optxpath = {}
1144     $xmldoc.elements.each('//dir') { |elem|
1145         optxpath[elem.attributes['path']] = elem
1146     }
1147
1148     examined_dirs.each { |dir|
1149         info("index.html: #{dir}|#{$source}")
1150
1151         xmldir = optxpath[utf8(dir)]
1152         if !xmldir || (xmldir.attributes['already-generated'] && !$force) || xmldir.attributes['deleted']
1153             next
1154         end
1155         dest_dir = make_dest_filename(dir.sub(/^#{Regexp.quote($source)}/, $dest))
1156
1157         previous_album = find_previous_album(xmldir)
1158         next_album = find_next_album(xmldir)
1159
1160         if xmldir.elements['dir']
1161             html = $html_index.collect { |l| l.clone }
1162             iterations = {}
1163             for i in html
1164                 caption = xmldir.attributes['subdirs-caption']
1165                 i.gsub!(/~~title~~/, caption)
1166                 if xmldir.parent.name == 'dir'
1167                     nav = ''
1168                     path = '..'
1169                     parent = xmldir.parent
1170                     while parent.name == 'dir'
1171                         parentcaption = parent.attributes['subdirs-caption']
1172                         nav = "<a href=\"#{path}/index.html\">#{parentcaption}</a> #{utf8(_(" > "))} #{nav}"
1173                         path += '/..'
1174                         parent = parent.parent
1175                     end
1176                     i.gsub!(/~~ifnavigation\?~~(.+?)~~fi~~/) { $1 }
1177                     i.gsub!(/~~navigation~~/, nav + caption)
1178                 else
1179                     i.gsub!(/~~ifnavigation\?~~(.+?)~~fi~~/, '')
1180                 end
1181                 discover_iterations(iterations, i)
1182             end
1183             
1184             html_index = ''
1185             reset_iterations(iterations)
1186             
1187             #- deal with "current" album (directs to "thumbnails" page)
1188             if xmldir.attributes['thumbnails-caption']
1189                 thumbnail = "#{dest_dir}/thumbnails-thumbnail.jpg"
1190                 gen_thumbnails_subdir(from_utf8(xmldir.attributes['thumbnails-captionfile']), xmldir, false,
1191                                       [ { 'filename' => thumbnail, 'size' => $albums_thumbnail_size } ], 'thumbnails')
1192                 html_index += run_iterations(iterations, 1)
1193                 html_index.gsub!(/~~image_iteration~~/, "<a href=\"thumbnails.html\">" + img_element(thumbnail) + '</a>')
1194                 html_index.gsub!(/~~caption_iteration~~/, xmldir.attributes['thumbnails-caption'])
1195             end
1196
1197             #- deal with sub-albums (direct to subdirs/index.html pages)
1198             xmldir.elements.each('dir') { |child|
1199                 if child.attributes['deleted']
1200                     next
1201                 end
1202                 subdir = make_dest_filename(from_utf8(File.basename(child.attributes['path'])))
1203                 thumbnail = "#{dest_dir}/thumbnails-#{subdir}.jpg"
1204                 html_index += run_iterations(iterations, 1)
1205                 captionfile, caption = find_subalbum_caption_info(child)
1206                 gen_thumbnails_subdir(captionfile, child, false,
1207                                       [ { 'filename' => thumbnail, 'size' => $albums_thumbnail_size } ], find_subalbum_info_type(child))
1208                 html_index.gsub!(/~~caption_iteration~~/, caption)
1209                 html_index.gsub!(/~~image_iteration~~/, "<a href=\"#{make_dest_filename(subdir)}/index.html\"'>" + img_element(thumbnail) + '</a>')
1210             }
1211
1212             html_index += close_iterations(iterations)
1213
1214             for i in html
1215                 i.gsub!(/~~thumbnails~~/, html_index)
1216                 i.gsub!(/~~madewith~~/, $madewith || '')
1217                 i.gsub!(/~~indexlink~~/, $indexlink || '')
1218             end
1219             
1220         else
1221             html = html_reload_to_thumbnails
1222         end
1223
1224         ios = File.open("#{dest_dir}/index.html", "w")
1225         ios.write(html)
1226         ios.close
1227
1228         #- substitute multiple "return to albums", previous/next correctly
1229         if xmldir.child_byname_notattr('image', 'deleted') || xmldir.child_byname_notattr('video', 'deleted')
1230             for suffix in [ '', '-nojs' ]
1231                 for sizeobj in $images_size
1232                     Dir.glob("#{dest_dir}/thumbnails-#{size2js(sizeobj['name'])}#{suffix}-*.html") do |file|
1233                         substInFile(file) { |line|
1234                             sub_previous_next_album(previous_album, next_album, line)
1235                             if xmldir.elements['dir']
1236                                 line.sub!(/~~return_to_albums~~/, '<a href="index.html">' + utf8(_('return to albums')) + '</a>')
1237                             else
1238                                 if xmldir.parent.name == 'dir'
1239                                     line.sub!(/~~return_to_albums~~/, '<a href="../index.html">' + utf8(_('return to albums')) + '</a>')
1240                                 else
1241                                     line.sub!(/~~return_to_albums~~/, '')
1242                                 end
1243                             end
1244                             line
1245                         }
1246                         if suffix == '' && xmldir.child_byname_notattr('image', 'deleted')
1247                             substInFile("#{dest_dir}/image-#{size2js(sizeobj['name'])}.html") { |line|
1248                                 sub_previous_next_album(previous_album, next_album, line)
1249                             }
1250                         end
1251                     end
1252                 end
1253             end
1254         end
1255     }
1256
1257     msg 3, _(" all done.")
1258 end
1259
1260 c = ::Config::CONFIG
1261 if c['MAJOR'] == '1' && c['MINOR'] == '8' && c['TEENY'] == '4'
1262     puts _("Ruby 1.8.4 was detected. This version has a severely broken REXML library. Please downgrade or upgrade ruby to a different version.")
1263     exit(1)
1264 end
1265
1266 handle_options
1267 read_config
1268 check_installation
1269
1270 build_html_skeletons
1271
1272 walk_source_dir