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=$4
 546         iconwidth=$($IDENTIFYCOMMAND -format "%wx%h" "$dir/$filename")
 547         iconheight=${iconwidth//*x}
 548         iconwidth=${iconwidth//x*}
 549         # are the dimensions correctish?
 550         imagesizeright=1
 551         if [ ! -z $wantedheight ]; then
 552                 if [ $wantedwidth -ne $iconwidth ] && [ $wantedheight -ne $iconheight ]; then
 553                         imagesizeright=0
 554                 else
 555                         # make sure that both of the dimensions are smaller than they
 556                         # should be
 557                         if [ $iconwidth -gt $wantedwidth ] || [ $iconheight -gt $wantedheight ]; then
 558                                 imagesizeright=0
 559                         fi
 560                 fi
 561         else
 562                 if [ $wantedwidth -ne $iconwidth ]; then
 563                         imagesizeright=0
 564                 fi
 565         fi
 566         echo $imagesizeright
 567 }
 568
 569 function generate_resized_images() {
 570         $ECHOCOMMAND "Generating $2"
 571         width=$1
 572         height=${width//*x}
 573         if [ $width != $height ]; then
 574                 width=${width//x*}
 575         else
 576                 height=""
 577         fi
 578         currentimage=0
 579         totalimages=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 -I {} $ECHOCOMMAND {} | $WCCOMMAND);
 580         imagestoupdate=$($FINDCOMMAND . $FINDIMAGESOPTIONS |
 581                 $XARGSCOMMAND -0 -I {} $ECHOCOMMAND {} |
 582                 while read filename; do
 583                         filename=${filename//\"/\\\"}
 584                         imagesizeright=$(check_dimensions "$width" "$height" "$2" "$filename")
 585                         if [ ! -r "$2/$filename" ] ||
 586                                 [ "$filename" -nt "$2/$filename" ] ||
 587                                 [ $imagesizeright -ne 1 ]; then
 588                                 $ECHOCOMMAND $filename
 589                         fi
 590                 done |
 591                 $WCCOMMAND)
 592
 593         if [ $totalimages -eq 0 ]; then
 594                 # might as well exit at this point - there are no pictures
 595                 $ECHOCOMMAND "No images for the gallery - exiting."
 596                 exit 64
 597         else
 598                 # check if the directory exists and create it other wise
 599                 if [ ! -d $2 ]; then
 600                         mkdir $2
 601                 fi
 602
 603                 if [ ! -w $2 ]; then
 604                         $ECHOCOMMAND "Can't write to $2 directory, exiting"
 605                         exit 16
 606                 fi
 607         fi
 608
 609         if [ $totalimages -eq $imagestoupdate ]; then
 610                 $ECHOCOMMAND "Regenerating all $2"
 611         elif [ $imagestoupdate -eq 0 ]; then
 612                 $ECHOCOMMAND "No Updated $2, not regenerating"
 613                 return
 614         else
 615                 $ECHOCOMMAND "Generating $imagestoupdate of $totalimages $2"
 616         fi
 617
 618         $FINDCOMMAND . $FINDIMAGESOPTIONS | \
 619                 $XARGSCOMMAND -0 -I {} $ECHOCOMMAND {} | \
 620                 while read filename; do
 621                         tempfilename=${filename//\"/\\\"/};
 622                         imagesizeright=$(check_dimensions "$width" "$height" "$2" "$filename")
 623                         if [ ! -r "$2/$tempfilename" ] \
 624                                 || [ "$tempfilename" -nt "$2/$tempfilename" ] \
 625                                 || [ $imagesizeright -ne 1 ]; then
 626                                         $ECHOCOMMAND -n $filename
 627                                         $ECHOCOMMAND -n -e "\000"
 628                         fi
 629                 done | \
 630                 $XARGSCOMMAND -0 --verbose --max-procs=4 -I {} $CONVERTTOOL -resize $1 '{}' $2/'{}' 2>&1 | \
 631                         while read throwout; do
 632                                 $ECHOCOMMAND done: $currentimage/$imagestoupdate images
 633                                 currentimage=$((currentimage+1))
 634                         done
 635         $ECHOCOMMAND done: $imagestoupdate/$imagestoupdate images
 636         $ECHOCOMMAND "Completed generating $2 for $totalimages images"
 637 }
 638
 639 function generate_thumbs() {
 640         if [ ! -z $HEIGHT ]; then
 641                 generate_resized_images "${WIDTH}x${HEIGHT}" $ICONSDIRECTORY
 642         else
 643         generate_resized_images $WIDTH $ICONSDIRECTORY
 644         fi
 645 }
 646
 647 function generate_medium() {
 648         if [ ! -z $MEDIUMHEIGHT ]; then
 649                 generate_resized_images "${MEDIUMWIDTH}x${MEDIUMHEIGHT}" $MEDIUMDIRECTORY
 650         else
 651                 generate_resized_images $MEDIUMWIDTH $MEDIUMDIRECTORY
 652         fi
 653 }
 654
 655 function generate_pages() {
 656         $ECHOCOMMAND "Generating Pages"
 657         previouspage=""
 658         currentpage=""
 659         nextpage=""
 660         previousimage=""
 661         currentimage=""
 662         nextimage=""
 663         extra=""
 664         extradir=""
 665         addlinks=0
 666
 667         if [ ! -z $1 ]; then
 668                 extra=$1
 669         fi
 670
 671         if [ ! -z $2 ]; then
 672                 extradir=$2/
 673                 addlinks=1
 674         fi
 675
 676         if [ -z $2 ] && [[ $GENERATEPAGESFORMEDIUMSIZE != 0 ]]; then
 677                 addlinks=2
 678         fi
 679
 680         $FINDCOMMAND . $FINDIMAGESOPTIONS | \
 681         $XARGSCOMMAND -0 -I {} $ECHOCOMMAND {} | \
 682         $SORTCOMMAND -g | \
 683         while read imagefilename; do
 684                 previousimage=$currentimage
 685                 currentimage=$nextimage
 686                 nextimage=${imagefilename#./}
 687                 addlink=""
 688
 689                 if [[ $GENERATEPAGESFORFULLSIZE != 0 ]]; then
 690                         if [[ $addlinks == 1 ]]; then
 691                                 addlink=${currentimage}.html
 692                         else
 693                                 addlink=${currentimage}${extra}.html
 694                         fi
 695                 else
 696                         addlink=${currentimage}
 697                 fi
 698
 699                 previouspage=$currentpage
 700                 currentpage=$nextpage
 701                 if [[ $addlinks == 1 ]]; then
 702                         nextpage=${nextimage}${extra}.html
 703                 else
 704                         nextpage=${nextimage}.html
 705                 fi
 706
 707                 if [[ "x$PAGESDIRECTORY" != "x" ]]; then
 708                         filename=../${extradir}${currentimage}
 709                 else
 710                         filename=${extradir}${currentimage}
 711                 fi
 712                 if [ "x$currentpage" != "x" ]; then
 713                         generate_general_page "$previouspage" "$currentpage" "$nextpage" $addlink
 714                 fi
 715                 $ECHOCOMMAND $nextimage
 716         done | tail -n 2 | (
 717                 read previouspage
 718                 read currentpage
 719                 addlink=""
 720
 721                 if [[ $GENERATEPAGESFORFULLSIZE != 0 ]]; then
 722                         if [[ $addlinks == 1 ]]; then
 723                                 addlink=${currentpage}.html
 724                         else
 725                                 addlink=${currentpage}${extra}.html
 726                         fi
 727                 else
 728                         addlink=${currentpage}
 729                 fi
 730
 731                 if [[ "x$PAGESDIRECTORY" != "x" ]]; then
 732                         filename=../${extradir}${currentpage}
 733                 else
 734                         filename=${extradir}${currentpage}
 735                 fi
 736                 if [[ $addlinks == 1 ]]; then
 737                         currentpage=${currentpage}${extra}.html
 738                         previouspage=${previouspage}${extra}.html
 739                 else
 740                         currentpage=${currentpage}.html
 741                         previouspage=${previouspage}.html
 742                 fi
 743                 nextpage=""
 744                 generate_general_page "$previouspage" "$currentpage" "" $addlink
 745         )
 746 }
 747
 748 function generate_medium_pages() {
 749         generate_pages __${MEDIUMDIRECTORY} ${MEDIUMDIRECTORY}
 750 }
 751
 752 function generate_general_page() {
 753
 754         if [[ -z $1 ]]; then
 755                 previouspage=""
 756         fi
 757
 758         if [[ -z $2 ]]; then
 759                 currentpage=""
 760                 return
 761         fi
 762
 763         if [[ -z $3 ]]; then
 764                 nextpage=""
 765         fi
 766
 767         if [[ ! -z $4 ]]; then
 768                 linklocation=$4
 769         fi
 770
 771         if [ -r captions.txt ]; then
 772                 imagefilename=${filename##*/}
 773                 caption=$($GREPCOMMAND -E "^${imagefilename}    " captions.txt); caption=${caption#*    }
 774         else
 775                 caption=""
 776         fi
 777
 778         $BPGALLERY_PAGE_FUNCTION > "${UNIXPAGESDIRECTORY}$currentpage"
 779 }
 780
 781 if [[ $OUTPUTHTML != 0 ]]; then
 782         $ECHOCOMMAND "<pre>"
 783 fi
 784
 785 if [[ -z $1 ]]; then
 786         $ECHOCOMMAND "No path given"
 787         usage
 788         exit 1
 789 fi
 790
 791 if [[ "$1" == "--help" || "$1" == "-h" ]]; then
 792         usage
 793         exit 0
 794 fi
 795
 796 if [[ "$1" == "--version" || "$1" == "-v" ]]; then
 797         version
 798         exit 0
 799 fi
 800
 801 if [[ ! -d $1 ]]; then
 802         $ECHOCOMMAND "$1 is not a directory"
 803         usage
 804         exit 2
 805 fi
 806
 807 cd "$1"
 808
 809 if ( ! $FINDCOMMAND . $FINDIMAGESOPTIONS > /dev/null 2>/dev/null ); then
 810         $ECHOCOMMAND "$1 does not contain any images. Quitting."
 811         exit 4
 812 fi
 813
 814 if [ ! -w . ]; then
 815         $ECHOCOMMAND "Can't write to images directory, exiting"
 816         exit 8
 817 fi
 818
 819 if [ -e ${INDEXDOCUMENT} ] && [ ! -w ${INDEXDOCUMENT} ]; then
 820         $ECHOCOMMAND "Can't write ${INDEXDOCUMENT}, exiting"
 821         exit 8
 822 fi
 823
 824 if [ -e style.css ] && [ ! -w style.css ]; then
 825         $ECHOCOMMAND "Can't write style.css, exiting"
 826         exit 8
 827 fi
 828
 829 generate_thumbs
 830
 831 if [[ "x$PAGESDIRECTORY" != "x" ]]; then
 832         if [ ! -d $PAGESDIRECTORY ]; then
 833                 mkdir -p $PAGESDIRECTORY
 834         fi
 835
 836         if [ ! -w $PAGESDIRECTORY ]; then
 837                 $ECHOCOMMAND "Can't write to $PAGESDIRECTORY directory, exiting"
 838                 exit 16
 839         fi
 840         UNIXPAGESDIRECTORY=$PAGESDIRECTORY/
 841         PAGESDIRECTORY=$(bpgallery_escape_url $PAGESDIRECTORY)/
 842
 843         BASEURL="../"
 844 else
 845         BASEURL=""
 846         UNIXPAGESDIRECTORY=""
 847 fi
 848
 849 if [ $GENERATEPAGESFORMEDIUMSIZE != 0 ]; then
 850         generate_medium
 851         generate_medium_pages
 852 fi
 853
 854 if [ $GENERATEPAGESFORFULLSIZE != 0 ]; then
 855         if [ $GENERATEPAGESFORMEDIUMSIZE != 0 ]; then
 856                 generate_pages __${MEDIUMDIRECTORY}
 857         else
 858                 generate_pages
 859         fi
 860 fi
 861
 862 if [ -r description.txt ] ; then
 863         DESCRIPTION=$($SEDCOMMAND -e '1 { s/^/<p>/; }; /^$/ { s,$,</p><p>,; }; $ { s,$,</p>, };' description.txt)
 864 else
 865         DESCRIPTION=""
 866 fi
 867
 868 BASEURL=""
 869
 870 $ECHOCOMMAND "Starting to generate page"
 871
 872 $BPGALLERY_HEAD_FUNCTION > ${INDEXDOCUMENT}
 873 $BPGALLERY_DESCRIPTION_FUNCTION >> ${INDEXDOCUMENT}
 874
 875 $ECHOCOMMAND "Adding Captions"
 876
 877 extra=""
 878 if [ $GENERATEPAGESFORMEDIUMSIZE != 0 ]; then
 879         extra=__${MEDIUMDIRECTORY}
 880 fi
 881
 882 $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}
 883
 884 $BPGALLERY_TAIL_FUNCTION >> ${INDEXDOCUMENT}
 885
 886 $ECHOCOMMAND "Finished generating the page"
 887 $ECHOCOMMAND "Generating stylesheet"
 888 cd $ICONSDIRECTORY
 889
 890 MAXHEIGHT=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 $IDENTIFYCOMMAND -format "%h\n" | $GREPCOMMAND -v "^$" | $SORTCOMMAND -g -r | $HEADCOMMAND -n 1)
 891 MAXWIDTH=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 $IDENTIFYCOMMAND -format "%w\n" | $GREPCOMMAND -v "^$" | $SORTCOMMAND -g -r | $HEADCOMMAND -n 1)
 892
 893 cd ..
 894
 895 # add a bit to the maxheight for the size of the caption
 896 MAXHEIGHT=$((MAXHEIGHT+$CAPTIONHEIGHT))
 897
 898 $BPGALLERY_STYLESHEET_FUNCTION > style.css
 899
 900 $ECHOCOMMAND "All done"
 901
 902 if [[ $OUTPUTHTML != 0 ]]; then
 903         $ECHOCOMMAND "</pre>"
 904 fi