bpgallery.sh

   1 #!/usr/bin/env bash
   2
   3 # bpgallery.sh - builds a simple 'gallery' from a collection of images
   4 # Copyright (C) 2004 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,
  12 # but 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
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19
  20 set -f
  21
  22 VERSION="1.0.3"
  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>${TITLE}</title>
  31         <link rel="stylesheet" href="style.css" type="text/css" />
  32 </head>
  33 <body>
  34 END
  35 }
  36
  37 declare -rf bpgallery_default_head
  38
  39 function bpgallery_default_description() {
  40 cat <<END
  41         <h1>${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="$link"><img src="icons/$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: ${WIDTH}px;
  84         height: ${MAXHEIGHT}px;
  85 }
  86
  87 div.caption {
  88         width: 100%;
  89         text-align: center;
  90         font-weight: bold;
  91 }
  92
  93 div.navigation {
  94         width: 100%;
  95         margin: 2em;
  96         text-align: center;
  97 }
  98
  99 div.navigation ul {
 100         width: 100%;
 101         display: inline;
 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         $BPGALLERY_HEAD_FUNCTION
 124         cat <<END
 125 <h1>${caption}</h1>
 126 <div class="navigation">
 127         <ul>
 128                 <li><a href='index.html'>Thumbnails</a></li>
 129 END
 130         if [[ ! -z $previouspage ]]; then
 131                 echo "<li><a href='${previouspage}'>Previous</a></li>"
 132         else
 133                 echo "<li>Previous</li>"
 134         fi
 135
 136         if [[ ! -z $nextpage ]]; then
 137                 echo "<li><a href='${nextpage}'>Next</a></li>"
 138         else
 139                 echo "<li>Next</li>"
 140         fi
 141 cat <<END
 142         </ul>
 143 </div>
 144 <div class="mainimage">
 145         <img src="${filename}" alt="${caption}" />
 146 </div>
 147 END
 148         $BPGALLERY_TAIL_FUNCTION
 149 }
 150
 151 declare -rf bpgallery_default_page
 152
 153 function bpgallery_escape_url() {
 154         temp=$1
 155         temp=${temp//\%/%25}
 156         temp=${temp//:/%3A}
 157         temp=${temp//;/%3B}
 158         temp=${temp// /%20}
 159         temp=${temp//$/%24}
 160         temp=${temp//&/%26}
 161         temp=${temp//+/%2B}
 162         temp=${temp//,/%2C}
 163         temp=${temp//\//%2F}
 164         temp=${temp//=/%3D}
 165         temp=${temp//\?/%3F}
 166         temp=${temp//@/%40}
 167         temp=${temp//\"/%22}
 168         $ECHOCOMMAND $temp
 169 }
 170
 171 declare -rf bpgallery_escape_url
 172
 173 if [[ ! -z ${BPGALLERY_THEME} ]] ; then
 174         declare -r BPGALLERY_THEME
 175 fi
 176
 177 if [[ ! -z ${TITLE} ]] ; then
 178         declare -r TITLE
 179 fi
 180
 181 if [[ -e /usr/local/etc/bpgallery/config ]] ; then
 182         . /usr/local/etc/bpgallery/config 2>/dev/null
 183 fi
 184
 185 if [[ -e /etc/bpgallery/config ]] ; then
 186         . /etc/bpgallery/config 2>/dev/null
 187 fi
 188
 189 if [[ -e $HOME/.bpgallery.rc ]]; then
 190         . $HOME/.bpgallery.rc 2>/dev/null
 191 fi
 192
 193 if [[ -e $1 && -d $1 && -e $1/.bpgallery.rc ]]; then
 194         . $1/.bpgallery.rc 2>/dev/null
 195 fi
 196
 197 if [[ -z ${BPGALLERY_THEME} ]]; then
 198         BPGALLERY_THEME=default
 199 fi
 200
 201 if [[ ! -z ${BPGALLERY_THEME_DIR} ]] && \
 202         [[ -e ${BPGALLERY_THEME_DIR}/${BPGALLERY_THEME} ]]; then
 203         . ${BPGALLERY_THEME_DIR}/${BPGALLERY_THEME} 2>/dev/null
 204 elif [[ -e $HOME/.bpgallery.themes/${BPGALLERY_THEME} ]]; then
 205         . $HOME/.bpgallery.themes/${BPGALLERY_THEME} 2>/dev/null
 206 elif [[ -e /usr/local/etc/bpgallery/themes/${BPGALLERY_THEME} ]]; then
 207         . /usr/local/etc/bpgallery/themes/${BPGALLERY_THEME} 2>/dev/null
 208 elif [[ -e /etc/bpgallery/themes/${BPGALLERY_THEME} ]]; then
 209         . /etc/bpgallery/themes/${BPGALLERY_THEME} 2>/dev/null
 210 fi
 211
 212 if [[ -z $TITLE ]]; then
 213         TITLE="Photo Gallery"
 214 fi
 215
 216 if [[ -z $CONVERTTOOL ]]; then
 217         CONVERTTOOL=convert
 218 fi
 219
 220 if [[ -z $FINDCOMMAND ]]; then
 221         FINDCOMMAND=find
 222 fi
 223
 224 if [[ -z $XARGSCOMMAND ]]; then
 225         XARGSCOMMAND=xargs
 226 fi
 227
 228 if [[ -z $ECHOCOMMAND ]]; then
 229         ECHOCOMMAND=echo
 230 fi
 231
 232 if [[ -z $SORTCOMMAND ]]; then
 233         SORTCOMMAND=sort
 234 fi
 235
 236 if [[ -z $IDENTIFYCOMMAND ]]; then
 237         IDENTIFYCOMMAND=identify
 238 fi
 239
 240 if [[ -z $HEADCOMMAND ]]; then
 241         HEADCOMMAND=head
 242 fi
 243
 244 if [[ -z $GREPCOMMAND ]]; then
 245         GREPCOMMAND=grep
 246 fi
 247
 248 if [[ -z $SEDCOMMAND ]]; then
 249         SEDCOMMAND=sed
 250 fi
 251
 252 if [[ -z $WIDTH ]]; then
 253         WIDTH=100
 254 fi
 255
 256 if [[ -z $IMAGEEXTENSIONS ]]; then
 257         IMAGEEXTENSIONS="jpeg jpg gif png";
 258 fi
 259
 260 if [[ -z $WCCOMMAND ]]; then
 261         WCCOMMAND="wc -l"
 262 fi
 263
 264 if [[ -z $CAPTIONHEIGHT ]]; then
 265         CAPTIONHEIGHT=75
 266 fi
 267
 268 if [[ -z $OUTPUTHTML ]]; then
 269         OUTPUTHTML=0
 270 fi
 271
 272 if [[ -z $GENERATEPAGESFORFULLSIZE ]]; then
 273         GENERATEPAGESFORFULLSIZE=0
 274 fi
 275
 276 if [[ $GENERATEPAGESFORFULLSIZE != 0 ]]; then
 277         if declare -F "bpgallery_${BPGALLERY_THEME}_page" > /dev/null ; then
 278                 BPGALLERY_PAGE_FUNCTION="bpgallery_${BPGALLERY_THEME}_page"
 279         else
 280                 BPGALLERY_PAGE_FUNCTION="bpgallery_default_page"
 281         fi
 282 fi
 283
 284 if declare -F "bpgallery_${BPGALLERY_THEME}_head" > /dev/null ; then
 285         BPGALLERY_HEAD_FUNCTION="bpgallery_${BPGALLERY_THEME}_head"
 286 else
 287         BPGALLERY_HEAD_FUNCTION="bpgallery_default_head"
 288 fi
 289
 290 if declare -F "bpgallery_${BPGALLERY_THEME}_description" > /dev/null ; then
 291         BPGALLERY_DESCRIPTION_FUNCTION="bpgallery_${BPGALLERY_THEME}_description"
 292 else
 293         BPGALLERY_DESCRIPTION_FUNCTION="bpgallery_default_description"
 294 fi
 295
 296 if declare -F "bpgallery_${BPGALLERY_THEME}_thumbsline" > /dev/null ; then
 297         BPGALLERY_THUMBSLINE_FUNCTION="bpgallery_${BPGALLERY_THEME}_thumbsline"
 298 else
 299         BPGALLERY_THUMBSLINE_FUNCTION="bpgallery_default_thumbsline"
 300 fi
 301
 302 if declare -F "bpgallery_${BPGALLERY_THEME}_tail" > /dev/null ; then
 303         BPGALLERY_TAIL_FUNCTION="bpgallery_${BPGALLERY_THEME}_tail"
 304 else
 305         BPGALLERY_TAIL_FUNCTION="bpgallery_default_tail"
 306 fi
 307
 308 if declare -F "bpgallery_${BPGALLERY_THEME}_stylesheet" > /dev/null ; then
 309         BPGALLERY_STYLESHEET_FUNCTION="bpgallery_${BPGALLERY_THEME}_stylesheet"
 310 else
 311         BPGALLERY_STYLESHEET_FUNCTION="bpgallery_default_stylesheet"
 312 fi
 313
 314 FINDIMAGESOPTIONS=""
 315
 316 for imageext in $IMAGEEXTENSIONS; do
 317         FINDIMAGESOPTIONS=$FINDIMAGESOPTIONS' -o -type f -iname '*.$imageext' -print0'
 318 done
 319
 320 FINDIMAGESOPTIONS=${FINDIMAGESOPTIONS## -o }
 321 FINDIMAGESOPTIONS='-maxdepth 1 '${FINDIMAGESOPTIONS}
 322
 323 function usage() {
 324 cat <<END
 325 Usage:
 326   $0 [--help|--version|<path to images>]
 327
 328     --help
 329         displays this help screen
 330     --version
 331         displays the version and exits
 332
 333 END
 334 }
 335
 336 function version() {
 337 cat <<END
 338 Version: $VERSION
 339 END
 340 }
 341
 342 function generate_thumbs() {
 343         $ECHOCOMMAND "Generating Thumbnails"
 344         currentimage=0
 345         totalimages=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 --replace $ECHOCOMMAND {} | $WCCOMMAND);
 346         imagestoupdate=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 --replace $ECHOCOMMAND {} | while read filename; do filename=${filename//\"/\\\"}; if [ ! -r "icons/$filename" ] || [ "$filename" -nt "icons/$filename" ] || [ $($IDENTIFYCOMMAND -format "%w" "icons/$filename") -ne $WIDTH ]; then $ECHOCOMMAND $filename; fi; done | $WCCOMMAND)
 347
 348         if [ $totalimages -eq $imagestoupdate ]; then
 349                 $ECHOCOMMAND "Regenerating all thumbnails"
 350         elif [ $imagestoupdate -eq 0 ]; then
 351                 $ECHOCOMMAND "No Updated Thumbs, not regenerating"
 352                 return
 353         else
 354                 $ECHOCOMMAND "Generating $imagestoupdate of $totalimages thumbnails"
 355         fi
 356
 357         $FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 --replace $ECHOCOMMAND {} | while read filename; do tempfilename=${filename//\"/\\\"/}; if [ ! -r "icons/$tempfilename" ] || [ "$tempfilename" -nt "icons/$tempfilename" ] || [ $($IDENTIFYCOMMAND -format "%w" "icons/$filename") -ne $WIDTH ]; then $ECHOCOMMAND -n $filename; $ECHOCOMMAND -n -e "\000"; fi; done | $XARGSCOMMAND -0 --verbose --max-procs=4 --replace $CONVERTTOOL -resize $WIDTH '{}' 'icons/{}' 2>&1 | while read throwout; do $ECHOCOMMAND done: $currentimage/$imagestoupdate images; currentimage=$((currentimage+1)); done
 358         $ECHOCOMMAND done: $imagestoupdate/$imagestoupdate images
 359         $ECHOCOMMAND "Completed generating thumbs for $totalimages images"
 360 }
 361
 362 function generate_pages() {
 363         $ECHOCOMMAND "Generating Pages"
 364         previouspage=""
 365         currentpage=""
 366         nextpage=""
 367         previousimage=""
 368         currentimage=""
 369         nextimage=""
 370
 371         $FINDCOMMAND . $FINDIMAGESOPTIONS | \
 372         $XARGSCOMMAND -0 --replace $ECHOCOMMAND {} | \
 373         $SORTCOMMAND -g | \
 374         while read imagefilename; do
 375                 previousimage=$currentimage
 376                 currentimage=$nextimage
 377                 nextimage=$imagefilename
 378                 previouspage=$currentpage
 379                 currentpage=$nextpage
 380                 nextpage=${imagefilename}.html
 381                 filename=${currentimage}
 382                 generate_general_page "$previouspage" "$currentpage" "$nextpage"
 383                 echo $nextimage
 384         done | tail -n 2 | (
 385                 read previouspage
 386                 read currentpage
 387                 filename=${currentpage}
 388                 currentpage=${currentpage}.html
 389                 previouspage=${previouspage}.html
 390                 nextpage=""
 391                 generate_general_page "$previouspage" "$currentpage" ""
 392         )
 393 }
 394
 395
 396
 397 function generate_general_page() {
 398
 399         if [[ -z $1 ]]; then
 400                 previouspage=""
 401         fi
 402
 403         if [[ -z $2 ]]; then
 404                 currentpage=""
 405                 return
 406         fi
 407
 408         if [[ -z $3 ]]; then
 409                 nextpage=""
 410         fi
 411
 412         if [ -r captions.txt ]; then
 413                 caption=$($GREPCOMMAND -E "^${filename}   " captions.txt); caption=${caption#*    }
 414         else
 415                 caption=""
 416         fi
 417
 418         $BPGALLERY_PAGE_FUNCTION > $currentpage
 419 }
 420
 421 if [[ $OUTPUTHTML != 0 ]]; then
 422         $ECHOCOMMAND "<pre>"
 423 fi
 424
 425 if [[ -z $1 ]]; then
 426         $ECHOCOMMAND "No path given"
 427         usage
 428         exit 1
 429 fi
 430
 431 if [[ "$1" == "--help" || "$1" == "-h" ]]; then
 432         usage
 433         exit 0
 434 fi
 435
 436 if [[ "$1" == "--version" || "$1" == "-v" ]]; then
 437         version
 438         exit 0
 439 fi
 440
 441 if [[ ! -d $1 ]]; then
 442         $ECHOCOMMAND "$1 is not a directory"
 443         usage
 444         exit 2
 445 fi
 446
 447 cd "$1"
 448
 449 if ( ! $FINDCOMMAND . $FINDIMAGESOPTIONS > /dev/null 2>/dev/null ); then
 450         $ECHOCOMMAND "$1 does not contain any images. Quitting."
 451         exit 4
 452 fi
 453
 454 if [ ! -w . ]; then
 455         $ECHOCOMMAND "Can't write to images directory, exiting"
 456         exit 8
 457 fi
 458
 459 if [ -e index.html ] && [ ! -w index.html ]; then
 460         $ECHOCOMMAND "Can't write index.html, exiting"
 461         exit 8
 462 fi
 463
 464 if [ -e style.css ] && [ ! -w style.css ]; then
 465         $ECHOCOMMAND "Can't write style.css, exiting"
 466         exit 8
 467 fi
 468
 469 if [ ! -d icons ]; then
 470         mkdir icons
 471 fi
 472
 473 if [ ! -w icons ]; then
 474         $ECHOCOMMAND "Can't write to icons directory, exiting"
 475         exit 16
 476 fi
 477
 478 generate_thumbs
 479
 480 if [ $GENERATEPAGESFORFULLSIZE != 0 ]; then
 481         generate_pages
 482 fi
 483
 484 if [ -r description.txt ] ; then
 485         DESCRIPTION=$($SEDCOMMAND -e '1 { s/^/<p>/; }; /^$/ { s,$,</p><p>,; }; $ { s,$,</p>, };' description.txt)
 486 else
 487         DESCRIPTION=""
 488 fi
 489
 490
 491 $ECHOCOMMAND "Starting to generate page"
 492
 493 $BPGALLERY_HEAD_FUNCTION > index.html
 494 $BPGALLERY_DESCRIPTION_FUNCTION >> index.html
 495
 496 $ECHOCOMMAND "Adding Captions"
 497
 498 $FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 --replace $ECHOCOMMAND {} |$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 [ $GENERATEPAGESFORFULLSIZE != 0 ]; then link=$(bpgallery_escape_url "${filename}.html"); else link=$(bpgallery_escape_url "$filename"); fi; filename=$(bpgallery_escape_url "$filename"); $BPGALLERY_THUMBSLINE_FUNCTION; done >> index.html
 499
 500 $BPGALLERY_TAIL_FUNCTION >> index.html
 501
 502 $ECHOCOMMAND "Finished generating the page"
 503 $ECHOCOMMAND "Generating stylesheet"
 504 cd icons
 505
 506 MAXHEIGHT=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 $IDENTIFYCOMMAND -format "%h\n" | $GREPCOMMAND -v "^$" | $SORTCOMMAND -g -r | $HEADCOMMAND -n 1)
 507 MAXWIDTH=$($FINDCOMMAND . $FINDIMAGESOPTIONS | $XARGSCOMMAND -0 $IDENTIFYCOMMAND -format "%w\n" | $GREPCOMMAND -v "^$" | $SORTCOMMAND -g -r | $HEADCOMMAND -n 1)
 508
 509 cd ..
 510
 511 # add a bit to the maxheight for the size of the caption
 512 MAXHEIGHT=$((MAXHEIGHT+$CAPTIONHEIGHT))
 513
 514 $BPGALLERY_STYLESHEET_FUNCTION > style.css
 515
 516 $ECHOCOMMAND "All done"
 517
 518 if [[ $OUTPUTHTML != 0 ]]; then
 519         $ECHOCOMMAND "</pre>"
 520 fi