bpgallery.sh

   1 #!/usr/bin/env bash
   2
   3 # bpgallery.sh - builds a simple 'gallery' from a collection of images
   4 # Copyright (C) 2004-2008 Brett Parker <iDunno@sommitrealweird.co.uk>
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful, but
  12 # WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License along
  17 # with this program; if not, write to the Free Software Foundation, Inc.,
  18 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19
  20 set -f
  21
  22 VERSION="1.1.3"
  23
  24 function bpgallery_default_head() {
  25 cat <<END
  26 <?xml version="1.0"?>
  27 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "xhtml11.dtd">
  28 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
  29 <head>
  30         <title>${TITLE}</title>
  31         <link rel="stylesheet" href="${BASEURL}style.css" type="text/css" />
  32 </head>
  33 <body>
  34 END
  35 }
  36
  37 declare -rf bpgallery_default_head
  38
  39 function bpgallery_default_description() {
  40 cat <<END
  41         <h1>${TITLE}</h1>
  42         ${DESCRIPTION}
  43 END
  44 }
  45
  46 declare -rf bpgallery_default_description
  47
  48 function bpgallery_default_thumbsline() {
  49 if [[ -z $caption ]]; then
  50         caption_alt=Unknown
  51 else
  52         caption_alt=$caption
  53 fi
  54 cat << END
  55 <div class="thumbnail"><a href="$link"><img src="${ICONSDIRECTORY}/$filename" alt="$caption_alt" /></a><div class="caption">$caption</div></div>
  56 END
  57 }
  58
  59 declare -rf bpgallery_default_thumbsline
  60
  61 function bpgallery_default_tail() {
  62 cat << END
  63 </body>
  64 </html>
  65 END
  66 }
  67
  68 declare -rf bpgallery_default_tail
  69
  70 function bpgallery_default_stylesheet() {
  71 cat <<END
  72 body {
  73         background: white;
  74         color: black;
  75         font-family: sans-serif;
  76         font-size: 10pt;
  77 }
  78
  79 div.thumbnail {
  80         float: left;
  81         padding: 20px;
  82         border: 0px;
  83         width: ${MAXWIDTH}px;
  84         height: ${MAXHEIGHT}px;
  85         text-align: center;
  86 }
  87
  88 div.caption {
  89         width: 100%;
  90         text-align: center;
  91         font-weight: bold;
  92 }
  93
  94 div.navigation {
  95         margin: 0;
  96 }
  97
  98 div.navigation ul {
  99         display: inline;
 100         margin: 0;
 101         padding: 0;
 102         text-align: center;
 103 }
 104
 105 div.navigation ul li {
 106         display: inline;
 107         margin: 2em;
 108 }
 109
 110 a {
 111         border: 0px;
 112 }
 113
 114 img {
 115         border: 0px;
 116 }
 117 END
 118 }
 119
 120 declare -rf bpgallery_default_stylesheet
 121
 122 function bpgallery_default_page() {
 123         $BPGALLERY_HEAD_FUNCTION
 124
 125         linkstart=""
 126         linkend=""
 127
 128         if [[ ! -z $linklocation ]]; then
 129                 linkstart="<a href='$linklocation'>"
 130                 linkend="</a>"
 131         fi
 132
 133         cat <<END
 134 <h1>${caption}</h1>
 135 <div class="navigation">
 136         <ul>
 137                 <li><a href='${BASEURL}${INDEXDOCUMENT}'>Thumbnails</a></li>
 138 END
 139         if [[ ! -z $previouspage ]]; then
 140                 $ECHOCOMMAND "<li><a href='${previouspage}'>Previous</a></li>"
 141         else
 142                 $ECHOCOMMAND "<li>Previous</li>"
 143         fi
 144
 145         if [[ ! -z $nextpage ]]; then
 146                 $ECHOCOMMAND "<li><a href='${nextpage}'>Next</a></li>"
 147         else
 148                 $ECHOCOMMAND "<li>Next</li>"
 149         fi
 150 cat <<END
 151         </ul>
 152 </div>
 153 <div class="mainimage">
 154         ${linkstart}<img src="${filename}" alt="${caption}" />${linkend}
 155 </div>
 156 END
 157         $BPGALLERY_TAIL_FUNCTION
 158 }
 159
 160 declare -rf bpgallery_default_page
 161
 162 function bpgallery_escape_url() {
 163         temp=$1
 164         temp=${temp//\%/%25}
 165         temp=${temp//:/%3A}
 166         temp=${temp//;/%3B}
 167         temp=${temp// /%20}
 168         temp=${temp//$/%24}
 169         temp=${temp//&/%26}
 170         temp=${temp//+/%2B}
 171         temp=${temp//,/%2C}
 172         temp=${temp//\//%2F}
 173         temp=${temp//=/%3D}
 174         temp=${temp//\?/%3F}
 175         temp=${temp//@/%40}
 176         temp=${temp//\"/%22}
 177         $ECHOCOMMAND $temp
 178 }
 179
 180 function bpgallery_cleanup_directory_name() {
 181         temp=$1
 182         temp=${temp//\%/_}
 183         temp=${temp//:/_}
 184         temp=${temp//;/_}
 185         temp=${temp// /_}
 186         temp=${temp//$/_}
 187         temp=${temp//&/_}
 188         temp=${temp//+/_}
 189         temp=${temp//,/_}
 190         temp=${temp//\//_}
 191         temp=${temp//=/_}
 192         temp=${temp//\?/_}
 193         temp=${temp//@/_}
 194         temp=${temp//\"/_}
 195         $ECHOCOMMAND $temp
 196 }
 197
 198 declare -rf bpgallery_escape_url
 199
 200 if [[ ! -z ${BPGALLERY_THEME} ]] ; then
 201         declare -r BPGALLERY_THEME
 202 fi
 203
 204 if [[ ! -z ${TITLE} ]] ; then
 205         declare -r TITLE
 206 fi
 207
 208 if [[ -e /usr/local/etc/bpgallery/config ]] ; then
 209         . /usr/local/etc/bpgallery/config 2>/dev/null
 210 fi
 211
 212 if [[ -e /etc/bpgallery/config ]] ; then
 213         . /etc/bpgallery/config 2>/dev/null
 214 fi
 215
 216 if [[ -e $HOME/.bpgallery.rc ]]; then
 217         . $HOME/.bpgallery.rc 2>/dev/null
 218 fi
 219
 220 if [[ -e $1 && -d $1 && -e $1/.bpgallery.rc ]]; then
 221         . $1/.bpgallery.rc 2>/dev/null
 222 fi
 223
 224 if [[ -z ${BPGALLERY_THEME} ]]; then
 225         BPGALLERY_THEME=default
 226 fi
 227
 228 if [[ ! -z ${BPGALLERY_THEME_DIR} ]] && \
 229         [[ -e ${BPGALLERY_THEME_DIR}/${BPGALLERY_THEME} ]]; then
 230         . ${BPGALLERY_THEME_DIR}/${BPGALLERY_THEME} 2>/dev/null
 231 elif [[ -e $HOME/.bpgallery.themes/${BPGALLERY_THEME} ]]; then
 232         . $HOME/.bpgallery.themes/${BPGALLERY_THEME} 2>/dev/null
 233 elif [[ -e /usr/local/etc/bpgallery/themes/${BPGALLERY_THEME} ]]; then
 234         . /usr/local/etc/bpgallery/themes/${BPGALLERY_THEME} 2>/dev/null
 235 elif [[ -e /etc/bpgallery/themes/${BPGALLERY_THEME} ]]; then
 236         . /etc/bpgallery/themes/${BPGALLERY_THEME} 2>/dev/null
 237 fi
 238
 239 if [[ -z $TITLE ]]; then
 240         TITLE="Photo Gallery"
 241 fi
 242
 243 if [[ -z $CONVERTTOOL ]]; then
 244         hash convert
 245         if [[ $? != 0 ]]; then
 246                 echo "Can't find convert, exiting"
 247                 exit 3
 248         fi
 249         CONVERTTOOL=$(hash -t convert)
 250 else
 251         if [[ ! -x $CONVERTTOOL ]]; then
 252                 echo "Can't find convert at location $CONVERTTOOL, exiting"
 253                 exit 3
 254         fi
 255 fi
 256
 257 if [[ -z $FINDCOMMAND ]]; then
 258         hash find
 259         if [[ $? != 0 ]]; then
 260                 echo "Can't find find, exiting"
 261                 exit 3
 262         fi
 263         FINDCOMMAND=$(hash -t find)
 264 else
 265         if [[ ! -x $FINDCOMMAND ]]; then
 266                 echo "Can't find find at $FINDCOMMAND, exiting"
 267                 exit 3
 268         fi
 269 fi
 270
 271 if [[ -z $XARGSCOMMAND ]]; then
 272         hash xargs
 273         if [[ $? != 0 ]]; then
 274                 echo "Can't find xargs, exiting"
 275                 exit 3
 276         fi
 277         XARGSCOMMAND=$(hash -t xargs)
 278 else
 279         if [[ ! -x $XARGSCOMMAND ]]; then
 280                 echo "Can't find xargs at $XARGSCOMMAND, exiting"
 281                 exit 3
 282         fi
 283 fi
 284
 285 if [[ -z $ECHOCOMMAND ]]; then
 286         ECHOCOMMAND=echo
 287 else
 288         if [[ ! -x $ECHOCOMMAND ]]; then
 289                 echo "Can't find echo at $ECHOCOMMAND, exiting"
 290                 exit 3
 291         fi
 292 fi
 293
 294 if [[ -z $SORTCOMMAND ]]; then
 295         hash sort
 296         if [[ $? != 0 ]]; then
 297                 echo "Can't find sort, exiting"
 298                 exit 3
 299         fi
 300         SORTCOMMAND=$(hash -t sort)
 301 else
 302         if [[ ! -x $SORTCOMMAND ]]; then
 303                 echo "Can't find sort, exiting"
 304                 exit 3
 305         fi
 306 fi
 307
 308 if [[ -z $IDENTIFYCOMMAND ]]; then
 309         hash identify
 310         if [[ $? != 0 ]]; then
 311                 echo "Can't find indentify, exiting"
 312                 exit 3
 313         fi
 314         IDENTIFYCOMMAND=$(hash -t identify)
 315 else
 316         if [[ ! -x $IDENTIFYCOMMAND ]]; then
 317                 echo "Can't find identify at $IDENTIFYCOMMAND, exiting"
 318                 exit 3
 319         fi
 320 fi
 321
 322 if [[ -z $HEADCOMMAND ]]; then
 323         hash head
 324         if [[ $? != 0 ]]; then
 325                 echo "Can't find head, exiting"
 326                 exit 3
 327         fi
 328         HEADCOMMAND=$(hash -t head)
 329 else
 330         if [[ ! -x $HEADCOMMAND ]]; then
 331                 echo "Can't find head at $HEADCOMMAND, exiting"
 332                 exit 3
 333         fi
 334 fi
 335
 336 if [[ -z $GREPCOMMAND ]]; then
 337         hash grep
 338         if [[ $? != 0 ]]; then
 339                 echo "Can't find grep, exiting"
 340                 exit 3
 341         fi
 342         GREPCOMMAND=$(hash -t grep)
 343 else
 344         if [[ ! -x $GREPCOMMAND ]]; then
 345                 echo "Can't find grep at $GREPCOMMAND, exiting"
 346                 exit 3
 347         fi
 348 fi
 349
 350 if [[ -z $SEDCOMMAND ]]; then
 351         hash sed
 352         if [[ $? != 0 ]]; then
 353                 echo "Can't find sed, exiting"
 354                 exit 3
 355         fi
 356         SEDCOMMAND=$(hash -t sed)
 357 else
 358         if [[ ! -x $SEDCOMMAND ]]; then
 359                 echo "Can't find sed at $SEDCOMMAND, exiting"
 360                 exit 3
 361         fi
 362 fi
 363
 364 if [[ -z $WCCOMMAND ]]; then
 365         hash wc
 366         if [[ $? != 0 ]]; then
 367                 echo "Can't find wc, exiting"
 368                 exit 3
 369         fi
 370         WCCOMMAND=$(hash -t wc)
 371         WCCOMMAND="$WCCOMMAND -l"
 372 else
 373         if [[ ! -x $WCCOMMAND ]]; then
 374                 echo "Can't find wc at $WCCOMMAND, exiting"
 375                 exit 3
 376         fi
 377         WCCOMMAND="$WCCOMMAND -l"
 378 fi
 379
 380 if [[ -z $WIDTH ]]; then
 381         WIDTH=100
 382 fi
 383
 384 if [[ -z $IMAGEEXTENSIONS ]]; then
 385         IMAGEEXTENSIONS="jpeg jpg gif png";
 386 fi
 387
 388 if [[ -z $CAPTIONHEIGHT ]]; then
 389         CAPTIONHEIGHT=75
 390 fi
 391
 392 if [[ -z $OUTPUTHTML ]]; then
 393         OUTPUTHTML=0
 394 fi
 395
 396 if [[ -z $GENERATEPAGESFORFULLSIZE ]]; then
 397         GENERATEPAGESFORFULLSIZE=0
 398 fi
 399
 400 if [[ -z $GENERATEPAGESFORMEDIUMSIZE ]]; then
 401         GENERATEPAGESFORMEDIUMSIZE=1
 402 fi
 403
 404 if [[ -z $PAGESDIRECTORY ]]; then
 405         PAGESDIRECTORY=""
 406 else
 407         removetrailingslashes=${PAGESDIRECTORY%/}
 408         temp=$removetrailingslashes
 409         while [[ $removetrailingslashes != $temp ]]; do
 410                 temp=$removetrailingslashes
 411                 removetrailingslashes=${temp%/}
 412         done
 413         PAGESDIRECTORY=$(bpgallery_escape_url "${PAGESDIRECTORY}")
 414 fi
 415
 416 if [[ -z $MEDIUMWIDTH ]]; then
 417         MEDIUMWIDTH=400
 418 fi
 419
 420 if [[ -z $INDEXDOCUMENT ]]; then
 421         INDEXDOCUMENT=index.html
 422 fi
 423
 424 if [[ -z $MEDIUMDIRECTORY ]]; then
 425         MEDIUMDIRECTORY=medium
 426 else
 427         # Strip out anything that might be broken
 428         MEDIUMDIRECTORY=$(bpgallery_cleanup_directory_name "$MEDIUMDIRECTORY")
 429 fi
 430
 431 if [[ -z $ICONSDIRECTORY ]]; then
 432         ICONSDIRECTORY=icons
 433 else
 434         # Strip out anything that might be broken
 435         ICONSDIRECTORY=$(bpgallery_cleanup_directory_name "$ICONSDIRECTORY")
 436 fi
 437
 438 if declare -F "bpgallery_${BPGALLERY_THEME}_page" > /dev/null ; then
 439         BPGALLERY_PAGE_FUNCTION="bpgallery_${BPGALLERY_THEME}_page"
 440 else
 441         BPGALLERY_PAGE_FUNCTION="bpgallery_default_page"
 442 fi
 443
 444 if declare -F "bpgallery_${BPGALLERY_THEME}_head" > /dev/null ; then
 445         BPGALLERY_HEAD_FUNCTION="bpgallery_${BPGALLERY_THEME}_head"
 446 else
 447         BPGALLERY_HEAD_FUNCTION="bpgallery_default_head"
 448 fi
 449
 450 if declare -F "bpgallery_${BPGALLERY_THEME}_description" > /dev/null ; then
 451         BPGALLERY_DESCRIPTION_FUNCTION="bpgallery_${BPGALLERY_THEME}_description"
 452 else
 453         BPGALLERY_DESCRIPTION_FUNCTION="bpgallery_default_description"
 454 fi
 455
 456 if declare -F "bpgallery_${BPGALLERY_THEME}_thumbsline" > /dev/null ; then
 457         BPGALLERY_THUMBSLINE_FUNCTION="bpgallery_${BPGALLERY_THEME}_thumbsline"
 458 else
 459         BPGALLERY_THUMBSLINE_FUNCTION="bpgallery_default_thumbsline"
 460 fi
 461
 462 if declare -F "bpgallery_${BPGALLERY_THEME}_tail" > /dev/null ; then
 463         BPGALLERY_TAIL_FUNCTION="bpgallery_${BPGALLERY_THEME}_tail"
 464 else
 465         BPGALLERY_TAIL_FUNCTION="bpgallery_default_tail"
 466 fi
 467
 468 if declare -F "bpgallery_${BPGALLERY_THEME}_stylesheet" > /dev/null ; then
 469         BPGALLERY_STYLESHEET_FUNCTION="bpgallery_${BPGALLERY_THEME}_stylesheet"
 470 else
 471         BPGALLERY_STYLESHEET_FUNCTION="bpgallery_default_stylesheet"
 472 fi
 473
 474 FINDIMAGESOPTIONS=""
 475
 476 for imageext in $IMAGEEXTENSIONS; do
 477         FINDIMAGESOPTIONS=$FINDIMAGESOPTIONS' -o -type f -iname '*.$imageext' -print0'
 478 done
 479
 480 FINDIMAGESOPTIONS=${FINDIMAGESOPTIONS## -o }
 481 FINDIMAGESOPTIONS='-maxdepth 1 '${FINDIMAGESOPTIONS}
 482
 483 function usage() {
 484 cat <<END
 485 Usage:
 486   $0 [--help|--version|<path to images>]
 487
 488     --help
 489         displays this help screen
 490     --version
 491         displays the version and exits
 492
 493 This can also takes some environment variables, these will use defaults if not
 494 set.
 495
 496         TITLE
 497             the title of the gallery
 498
 499         WIDTH
 500             the width to make the icons
 501
 502         HEIGHT
 503             the height to make the icons (sets up a bounding box with WIDTH)
 504
 505         MEDIUMWIDTH
 506             set the width of images in the medium size pages
 507
 508         MEDIUMHEIGHT
 509             the height to make images in the medium size pages (sets up a
 510             bounding box with MEDIUMWIDTH)
 511
 512         BPGALLERY_THEME
 513             set the theme to use (described below)
 514
 515         BPGALLERY_THEME_DIR
 516             set an extra location to look for themes
 517
 518         OUTPUTHTML
 519             sets the script output to be wrapped in a <pre> block
 520
 521         GENERATEPAGESFORMEDIUMSIZE
 522             generate medium sized images and pages
 523
 524         GENERATEPAGESFORFULLSIZE
 525             decide wether to generate pages for the full size images or not
 526
 527         INDEXDOCUMENT
 528             name of the index page (e.g. index.html)
 529
 530 Example:
 531         TITLE="My Funky Gallery" WIDTH=200 INDEXDOCUMENT="welcome.html" GENERATEPAGESFORFULLSIZE=1 GENERATEPAGESFORMEDIUMSIZE=1 MEDIUMWIDTH=400 $0 /path/to/image/folder
 532 END
 533 }
 534
 535 function version() {
 536 cat <<END
 537 Version: $VERSION
 538 END
 539 }
 540
 541 function check_dimensions() {
 542         wantedwidth=$1
 543         wantedheight=$2
 544         dir=$3
 545         filename=$4
 546         if [ ! -e "$dir/$filename" ]; then
 547                 echo 0
 548                 return
 549         fi
 550         iconwidth=$($IDENTIFYCOMMAND -format "%wx%h" "$dir/$filename")
 551         iconheight=${iconwidth//*x}
 552         iconwidth=${iconwidth//x*}
 553         # are the dimensions correctish?
 554         imagesizeright=1
 555         if [ ! -z $wantedheight ]; then
 556                 if [ $wantedwidth -ne $iconwidth ] && [ $wantedheight -ne $iconheight ]; then
 557                         imagesizeright=0
 558                 else
 559                         # make sure that both of the dimensions are smaller than they
 560                         # should be
 561                         if [ $iconwidth -gt $wantedwidth ] || [ $iconheight -gt $wantedheight ]; then
 562                                 imagesizeright=0
 563                         fi
 564                 fi
 565         else
 566                 if [ $wantedwidth -ne $iconwidth ]; then
 567                         imagesizeright=0
 568                 fi
 569         fi
 570         echo $imagesizeright
 571 }
 572
 573 function generate_resized_images() {
 574         $ECHOCOMMAND "Generating $2"
 575         width=$1
 576         height=${width//*x}
 577         if [ $width != $height ]; then
 578                 width=${width//x*}
 579         else
 580                 height=""
 581         fi
 582         currentimage=0
 583         totalimages=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 -I {} $ECHOCOMMAND {} | $WCCOMMAND);
 584         imagestoupdate=$($FINDCOMMAND . $FINDIMAGESOPTIONS |
 585                 $XARGSCOMMAND -0 -I {} $ECHOCOMMAND {} |
 586                 while read filename; do
 587                         filename=${filename//\"/\\\"}
 588                         imagesizeright=$(check_dimensions "$width" "$height" "$2" "$filename")
 589                         if [ ! -r "$2/$filename" ] ||
 590                                 [ "$filename" -nt "$2/$filename" ] ||
 591                                 [ $imagesizeright -ne 1 ]; then
 592                                 $ECHOCOMMAND $filename
 593                         fi
 594                 done |
 595                 $WCCOMMAND)
 596
 597         if [ $totalimages -eq 0 ]; then
 598                 # might as well exit at this point - there are no pictures
 599                 $ECHOCOMMAND "No images for the gallery - exiting."
 600                 exit 64
 601         else
 602                 # check if the directory exists and create it other wise
 603                 if [ ! -d $2 ]; then
 604                         mkdir $2
 605                 fi
 606
 607                 if [ ! -w $2 ]; then
 608                         $ECHOCOMMAND "Can't write to $2 directory, exiting"
 609                         exit 16
 610                 fi
 611         fi
 612
 613         if [ $totalimages -eq $imagestoupdate ]; then
 614                 $ECHOCOMMAND "Regenerating all $2"
 615         elif [ $imagestoupdate -eq 0 ]; then
 616                 $ECHOCOMMAND "No Updated $2, not regenerating"
 617                 return
 618         else
 619                 $ECHOCOMMAND "Generating $imagestoupdate of $totalimages $2"
 620         fi
 621
 622         $FINDCOMMAND . $FINDIMAGESOPTIONS | \
 623                 $XARGSCOMMAND -0 -I {} $ECHOCOMMAND {} | \
 624                 while read filename; do
 625                         tempfilename=${filename//\"/\\\"/};
 626                         imagesizeright=$(check_dimensions "$width" "$height" "$2" "$filename")
 627                         if [ ! -r "$2/$tempfilename" ] \
 628                                 || [ "$tempfilename" -nt "$2/$tempfilename" ] \
 629                                 || [ $imagesizeright -ne 1 ]; then
 630                                         $ECHOCOMMAND -n $filename
 631                                         $ECHOCOMMAND -n -e "\000"
 632                         fi
 633                 done | \
 634                 $XARGSCOMMAND -0 --verbose --max-procs=4 -I {} $CONVERTTOOL -resize $1 '{}' $2/'{}' 2>&1 | \
 635                         while read throwout; do
 636                                 $ECHOCOMMAND done: $currentimage/$imagestoupdate images
 637                                 currentimage=$((currentimage+1))
 638                         done
 639         $ECHOCOMMAND done: $imagestoupdate/$imagestoupdate images
 640         $ECHOCOMMAND "Completed generating $2 for $totalimages images"
 641 }
 642
 643 function generate_thumbs() {
 644         if [ ! -z $HEIGHT ]; then
 645                 generate_resized_images "${WIDTH}x${HEIGHT}" $ICONSDIRECTORY
 646         else
 647         generate_resized_images $WIDTH $ICONSDIRECTORY
 648         fi
 649 }
 650
 651 function generate_medium() {
 652         if [ ! -z $MEDIUMHEIGHT ]; then
 653                 generate_resized_images "${MEDIUMWIDTH}x${MEDIUMHEIGHT}" $MEDIUMDIRECTORY
 654         else
 655                 generate_resized_images $MEDIUMWIDTH $MEDIUMDIRECTORY
 656         fi
 657 }
 658
 659 function generate_pages() {
 660         $ECHOCOMMAND "Generating Pages"
 661         previouspage=""
 662         currentpage=""
 663         nextpage=""
 664         previousimage=""
 665         currentimage=""
 666         nextimage=""
 667         extra=""
 668         extradir=""
 669         addlinks=0
 670
 671         if [ ! -z $1 ]; then
 672                 extra=$1
 673         fi
 674
 675         if [ ! -z $2 ]; then
 676                 extradir=$2/
 677                 addlinks=1
 678         fi
 679
 680         if [ -z $2 ] && [[ $GENERATEPAGESFORMEDIUMSIZE != 0 ]]; then
 681                 addlinks=2
 682         fi
 683
 684         $FINDCOMMAND . $FINDIMAGESOPTIONS | \
 685         $XARGSCOMMAND -0 -I {} $ECHOCOMMAND {} | \
 686         $SORTCOMMAND -g | \
 687         while read imagefilename; do
 688                 previousimage=$currentimage
 689                 currentimage=$nextimage
 690                 nextimage=${imagefilename#./}
 691                 addlink=""
 692
 693                 if [[ $GENERATEPAGESFORFULLSIZE != 0 ]]; then
 694                         if [[ $addlinks == 1 ]]; then
 695                                 addlink=${currentimage}.html
 696                         else
 697                                 addlink=${currentimage}${extra}.html
 698                         fi
 699                 else
 700                         addlink=${currentimage}
 701                 fi
 702
 703                 previouspage=$currentpage
 704                 currentpage=$nextpage
 705                 if [[ $addlinks == 1 ]]; then
 706                         nextpage=${nextimage}${extra}.html
 707                 else
 708                         nextpage=${nextimage}.html
 709                 fi
 710
 711                 if [[ "x$PAGESDIRECTORY" != "x" ]]; then
 712                         filename=../${extradir}${currentimage}
 713                 else
 714                         filename=${extradir}${currentimage}
 715                 fi
 716                 if [ "x$currentpage" != "x" ]; then
 717                         generate_general_page "$previouspage" "$currentpage" "$nextpage" $addlink
 718                 fi
 719                 $ECHOCOMMAND $nextimage
 720         done | tail -n 2 | (
 721                 read previouspage
 722                 read currentpage
 723                 addlink=""
 724
 725                 if [[ $GENERATEPAGESFORFULLSIZE != 0 ]]; then
 726                         if [[ $addlinks == 1 ]]; then
 727                                 addlink=${currentpage}.html
 728                         else
 729                                 addlink=${currentpage}${extra}.html
 730                         fi
 731                 else
 732                         addlink=${currentpage}
 733                 fi
 734
 735                 if [[ "x$PAGESDIRECTORY" != "x" ]]; then
 736                         filename=../${extradir}${currentpage}
 737                 else
 738                         filename=${extradir}${currentpage}
 739                 fi
 740                 if [[ $addlinks == 1 ]]; then
 741                         currentpage=${currentpage}${extra}.html
 742                         previouspage=${previouspage}${extra}.html
 743                 else
 744                         currentpage=${currentpage}.html
 745                         previouspage=${previouspage}.html
 746                 fi
 747                 nextpage=""
 748                 generate_general_page "$previouspage" "$currentpage" "" $addlink
 749         )
 750 }
 751
 752 function generate_medium_pages() {
 753         generate_pages __${MEDIUMDIRECTORY} ${MEDIUMDIRECTORY}
 754 }
 755
 756 function generate_general_page() {
 757
 758         if [[ -z $1 ]]; then
 759                 previouspage=""
 760         fi
 761
 762         if [[ -z $2 ]]; then
 763                 currentpage=""
 764                 return
 765         fi
 766
 767         if [[ -z $3 ]]; then
 768                 nextpage=""
 769         fi
 770
 771         if [[ ! -z $4 ]]; then
 772                 linklocation=$4
 773         fi
 774
 775         if [ -r captions.txt ]; then
 776                 imagefilename=${filename##*/}
 777                 caption=$($GREPCOMMAND -E "^${imagefilename}    " captions.txt); caption=${caption#*    }
 778         else
 779                 caption=""
 780         fi
 781
 782         $BPGALLERY_PAGE_FUNCTION > "${UNIXPAGESDIRECTORY}$currentpage"
 783 }
 784
 785 if [[ $OUTPUTHTML != 0 ]]; then
 786         $ECHOCOMMAND "<pre>"
 787 fi
 788
 789 if [[ -z $1 ]]; then
 790         $ECHOCOMMAND "No path given"
 791         usage
 792         exit 1
 793 fi
 794
 795 if [[ "$1" == "--help" || "$1" == "-h" ]]; then
 796         usage
 797         exit 0
 798 fi
 799
 800 if [[ "$1" == "--version" || "$1" == "-v" ]]; then
 801         version
 802         exit 0
 803 fi
 804
 805 if [[ ! -d $1 ]]; then
 806         $ECHOCOMMAND "$1 is not a directory"
 807         usage
 808         exit 2
 809 fi
 810
 811 cd "$1"
 812
 813 if ( ! $FINDCOMMAND . $FINDIMAGESOPTIONS > /dev/null 2>/dev/null ); then
 814         $ECHOCOMMAND "$1 does not contain any images. Quitting."
 815         exit 4
 816 fi
 817
 818 if [ ! -w . ]; then
 819         $ECHOCOMMAND "Can't write to images directory, exiting"
 820         exit 8
 821 fi
 822
 823 if [ -e ${INDEXDOCUMENT} ] && [ ! -w ${INDEXDOCUMENT} ]; then
 824         $ECHOCOMMAND "Can't write ${INDEXDOCUMENT}, exiting"
 825         exit 8
 826 fi
 827
 828 if [ -e style.css ] && [ ! -w style.css ]; then
 829         $ECHOCOMMAND "Can't write style.css, exiting"
 830         exit 8
 831 fi
 832
 833 generate_thumbs
 834
 835 if [[ "x$PAGESDIRECTORY" != "x" ]]; then
 836         if [ ! -d $PAGESDIRECTORY ]; then
 837                 mkdir -p $PAGESDIRECTORY
 838         fi
 839
 840         if [ ! -w $PAGESDIRECTORY ]; then
 841                 $ECHOCOMMAND "Can't write to $PAGESDIRECTORY directory, exiting"
 842                 exit 16
 843         fi
 844         UNIXPAGESDIRECTORY=$PAGESDIRECTORY/
 845         PAGESDIRECTORY=$(bpgallery_escape_url $PAGESDIRECTORY)/
 846
 847         BASEURL="../"
 848 else
 849         BASEURL=""
 850         UNIXPAGESDIRECTORY=""
 851 fi
 852
 853 if [ $GENERATEPAGESFORMEDIUMSIZE != 0 ]; then
 854         generate_medium
 855         generate_medium_pages
 856 fi
 857
 858 if [ $GENERATEPAGESFORFULLSIZE != 0 ]; then
 859         if [ $GENERATEPAGESFORMEDIUMSIZE != 0 ]; then
 860                 generate_pages __${MEDIUMDIRECTORY}
 861         else
 862                 generate_pages
 863         fi
 864 fi
 865
 866 if [ -r description.txt ] ; then
 867         DESCRIPTION=$($SEDCOMMAND -e '1 { s/^/<p>/; }; /^$/ { s,$,</p><p>,; }; $ { s,$,</p>, };' description.txt)
 868 else
 869         DESCRIPTION=""
 870 fi
 871
 872 BASEURL=""
 873
 874 $ECHOCOMMAND "Starting to generate page"
 875
 876 $BPGALLERY_HEAD_FUNCTION > ${INDEXDOCUMENT}
 877 $BPGALLERY_DESCRIPTION_FUNCTION >> ${INDEXDOCUMENT}
 878
 879 $ECHOCOMMAND "Adding Captions"
 880
 881 extra=""
 882 if [ $GENERATEPAGESFORMEDIUMSIZE != 0 ]; then
 883         extra=__${MEDIUMDIRECTORY}
 884 fi
 885
 886 $FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 -I {} $ECHOCOMMAND {} | $SORTCOMMAND -g | while read filename; do filename=${filename#./}; if [ -r captions.txt ]; then caption=$($GREPCOMMAND -E "^$filename      " captions.txt); caption=${caption#*    }; else caption=""; fi; if [ $GENERATEPAGESFORMEDIUMSIZE != 0 ]; then link=${PAGESDIRECTORY}$(bpgallery_escape_url "${filename}${extra}.html"); elif [ $GENERATEPAGESFORFULLSIZE != 0 ]; then link=${PAGESDIRECTORY}$(bpgallery_escape_url "${filename}.html"); else link=$(bpgallery_escape_url "$filename"); fi; filename=$(bpgallery_escape_url "$filename"); $BPGALLERY_THUMBSLINE_FUNCTION; done >> ${INDEXDOCUMENT}
 887
 888 $BPGALLERY_TAIL_FUNCTION >> ${INDEXDOCUMENT}
 889
 890 $ECHOCOMMAND "Finished generating the page"
 891 $ECHOCOMMAND "Generating stylesheet"
 892 cd $ICONSDIRECTORY
 893
 894 MAXHEIGHT=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 $IDENTIFYCOMMAND -format "%h\n" | $GREPCOMMAND -v "^$" | $SORTCOMMAND -g -r | $HEADCOMMAND -n 1)
 895 MAXWIDTH=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 $IDENTIFYCOMMAND -format "%w\n" | $GREPCOMMAND -v "^$" | $SORTCOMMAND -g -r | $HEADCOMMAND -n 1)
 896
 897 cd ..
 898
 899 # add a bit to the maxheight for the size of the caption
 900 MAXHEIGHT=$((MAXHEIGHT+$CAPTIONHEIGHT))
 901
 902 $BPGALLERY_STYLESHEET_FUNCTION > style.css
 903
 904 $ECHOCOMMAND "All done"
 905
 906 if [[ $OUTPUTHTML != 0 ]]; then
 907         $ECHOCOMMAND "</pre>"
 908 fi