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sh+git@codevoid.de
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#!/bin/sh
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printf '%s' \
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'/*!
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* mkpicindex.sh - v0.1
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* https://codevoid.de
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* Copyright (c) 2019 Stefan Hagen
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* Licensed under the ISC license.
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*/
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' > LICENSE
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# CONFIGURE
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GALLERY_TITLE="My Gallery" # browser title
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GALLERY_WIDTH=1000 # how wide will the gallery be
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GALLERY_ROW_HEIGHT=150 # how high will the justified rows be?
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GALLERY_RANDOMIZE=false # enable random sorting (true,false)
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BODY_STYLE="color:orange; background:black;" # <body style="?">
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THUMBNAIL_QUALITY=83 # quality for thumbnails
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THUMBNAIL_PATH="thm" # relative path to thumbnail folder
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INCLUDE_HEADER="HEADER" # file with html to include before gallery
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INCLUDE_FOOTER="FOOTER" # file with html to include after gallery
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### ZE PROGAM STARTZ HERE ##############################################
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cleanup() {
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# DELETE BROKEN IMAGES
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printf '%s\n' "Removing incomplete thumbnails." >&2
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find $THUMBNAIL_PATH -name "*_tmp.*" -exec rm -v "{}" \;
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exit 1
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}
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trap cleanup 1 2 3 6
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# CREATE THUMBNAIL DIRECTORY
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mkdir -p $THUMBNAIL_PATH
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# INCLUDE CUSTOM HEADER & FOOTER
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FOOTER=$([ -f $INCLUDE_FOOTER ] && cat $INCLUDE_FOOTER | sed 's/^/ /g')
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HEADER=$([ -f $INCLUDE_HEADER ] && cat $INCLUDE_HEADER | sed 's/^/ /g')
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# PRINT HEADER
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printf '%s%s%s%s%s\n' \
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"<html>
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<head>
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<title>$GALLERY_TITLE</title>
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<meta name=\"viewport\" content=\"width=device-width\">
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</head>
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<body style=\"$BODY_STYLE\">
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$HEADER"
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# take one image
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# resize to $ROW_HEIGHT
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# check if width exceeds $GALLERY_WIDTH
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# if not: take next picture
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# resize to $ROW_HEIGHT
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# check if first picture width + second picture width exceeds $GALLERY_WIDTH
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# if yes:
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# $1 - Width
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# $2 - Height
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# < - Ratio (f)
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get_aspect_ratio() {
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W=$1 # Width
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H=$2 # Height
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printf '%f' "$(printf "$FILE_WH" | awk -vTH=$TARGET_H '{ printf("%f", TH*($2/$1)) }')"
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}
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# CALCULATE ASPECT RATIO WITH FOR TARGET ROW HEIGHT
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# $1 - path to image
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# $2 - target row height
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# ret - calculated width for target height
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get_width() {
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local FILE="$1";
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local TARGET_H="$2";
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local FILE_WH="$(identify -format ' %w %h ' "$FILE" | awk '{ print $1" "$2 }')"
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printf '%.0f' "$(printf "$FILE_WH" | awk -vTH=$TARGET_H '{ printf("%f", TH*($2/$1)) }')"
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}
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get_streched_height() {
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printf "$GALLERY_HEIGHT $CURRENT_ROW_WIDTH $GALLERY_WIDTH" \
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| awk '{ printf("%f", ($2/$1)*$3) }'
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}
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# ADD NEXT IMAGE AND DECIDE
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# $1 - path to image
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CURRENT_ROW_WIDTH=0
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CURRENT_ROW_FILES=""
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add_image() {
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local FILE=$1
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local NEXT_W=$(get_width "$FILE" "$GALLERY_ROW_HEIGHT")
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# when the next item with is too much for the current row..
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if [ $(( $CURRENT_ROW_WIDTH + $NEXT_W )) > $GALLERY_WIDTH ];
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# build gallery
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# calculate aspect ratio of row_height and all items
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# calculate target image height with gallery_width
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get_streched_height;
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# loop at images and resize to streched height
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# resize items
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# output souce
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# set leftover file as for next iteration
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CURRENT_ROW_WIDTH="$NEXT_W"
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CURRENT_ROW_FILES="|$FILE"
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else
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# add more items...
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CURRENT_ROW_WIDTH=$(( $CURRENT_ROW_WIDTH + $NEXT_W ))
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CURRENT_ROW_FILES="$CURRENT_ROW_FILES|$FILE"
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fi
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}
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for file in *.*;
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do
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if [ -f "$file" ];
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then
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case $(printf '%s' ${file##*.} | tr '[:upper:]' '[:lower:]') in
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jpg|jpeg|png)
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*) printf '%s\n' "Ignoring: $file" >&2 ;;
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esac
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fi
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done
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## RESCALE AND ADD IMAGE
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## PARAM 1: original
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## 2: thumbnail_basename
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## 3: thumbnail_format (extension)
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#add_image() {
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# local FILE="$1"
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# get_width "$1" 300
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# local THUMB="$THUMBNAIL_PATH/$2-$GALLERY_ROW_HEIGHT"
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# local EXT="$3"
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# printf '%s\n' "Adding image: $FILE" >&2
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# if ! [ -f "$THUMB.$EXT" ] && [ "$FILE" != "$THUMB.$EXT" ];
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# then convert -quality $THUMBNAIL_QUALITY -sharpen 2x2 \
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# -coalesce -resize 6000x$GALLERY_ROW_HEIGHT\> \
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# -deconstruct "$FILE" "${THUMB}_tmp.$EXT" && \
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# mv "${THUMB}_tmp.$EXT" "$THUMB.$EXT"
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# fi
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# local WH="$(identify -format ' %w %h ' "$THUMB.$EXT" \
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# | awk '{ print "width="$1" height="$2 }')"
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# printf ' %s\n' "<a href=\"$FILE\">"
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# printf ' %s\n' "<img $WH src=\"$THUMB.$EXT\">"
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# printf ' %s\n' '</a>'
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#}
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### MAIN LOOP ##########################################################
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#for file in *.*;
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#do
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# if [ -f "$file" ];
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# then
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# case $(printf '%s' ${file##*.} | tr '[:upper:]' '[:lower:]') in
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# jpg|jpeg|png)
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# add_image "$file" "${file%%.*}" "jpeg" ;;
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# gif)
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# add_image "$file" "${file%%.*}" "gif" ;;
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# *) printf '%s\n' "Ignoring: $file" >&2 ;;
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# esac
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# fi
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#done
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### MAIN LOOP END ######################################################
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# PRINT FOOTER
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printf '%s%s\n' \
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" </div>
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$FOOTER
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</body>
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</html>"
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