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#!/bin/bash
if [[ $# -lt 4 ]]; then
echo "$0: size input_file_name output_file_name input_uri"
exit 255
fi
SIZE="$1"
INPUT_FILE_NAME="$2"
OUTPUT_FILE_NAME="$3"
INPUT_URI="$4"
THUMBNAIL="$(echo -n "$INPUT_URI" | md5sum | cut -d " " -f1).png"
convert_thumbnail() {
local filename="$1"
convert -background none -thumbnail "$SIZE" "$INPUT_FILE_NAME/$filename" "$OUTPUT_FILE_NAME" 1>/dev/null 2>&1
}
for directory in ".cache/thumbnails" ".thumbnails"; do
for subdirectory in "normal" "large"; do
rm -f "$HOME/$directory/$subdirectory/$THUMBNAIL"
done
done
for name in "folder" "cover"; do
for extension in "jpg" "png" "svg"; do
if convert_thumbnail "${name}.${extension}" || convert_thumbnail ".${name}.${extension}"; then
exit 0
fi
done
done
exit 1
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