45 lines
1.5 KiB
Bash
45 lines
1.5 KiB
Bash
#! /bin/bash
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set -ex
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# Check if ImageMagick is installed
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if ! command -v convert &> /dev/null; then
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echo "ImageMagick is not installed. Please install it before running this script."
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exit 1
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fi
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# Get the directory of this script
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DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
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# Find all images with extension ".png", ".jpg", or ".jpeg"
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# NOTE: Ignore any image containing ".preview." in the name
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IMAGES=$(find $DIR -type f -name "*.png" -o -name "*.jpg" -o -name "*.jpeg" | grep -v ".preview.")
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# Loop through all images
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for IMAGE in $IMAGES; do
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# Create the preview file name (file.preview.ext)
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PREVIEW="${IMAGE%.*}.preview.${IMAGE##*.}"
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# If the file already exists, skip it
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if [ -f "$PREVIEW" ]; then
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echo "Preview already exists for: $IMAGE"
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continue
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fi
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# Check if the image is bigger than 1440x1440
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WIDTH=$(identify -format "%w" $IMAGE)
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HEIGHT=$(identify -format "%h" $IMAGE)
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if [ $WIDTH -gt 1440 ] || [ $HEIGHT -gt 1440 ]; then
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# Create the preview. This should be a 2 fifths resolution version of the original image
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convert $IMAGE -resize 40% $PREVIEW
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elif [ $WIDTH -gt 720 ] || [ $HEIGHT -gt 720 ]; then
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# Create the preview. This should be a half resolution version of the original image
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convert $IMAGE -resize 50% $PREVIEW
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else
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# Create the preview. This should be the original image
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cp $IMAGE $PREVIEW
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fi
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echo "Created preview for: $IMAGE"
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done |