25 lines
486 B
Bash
25 lines
486 B
Bash
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#!/bin/sh
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HALF_RES_RESOLUTIONS="240 320 360 480 540 600"
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for i in $HALF_RES_RESOLUTIONS; do
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mkdir $i
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cd $i
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if [ -f ../../$(($i/2)).zip ]; then
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# use the existing scaled images
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echo "Using existing half-scale images instead of scaling from $i px"
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unzip ../../$(($i/2)).zip
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rm -f desc.txt
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unzip ../../$i.zip desc.txt
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else
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unzip ../../$i.zip
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for j in */*.jpg; do
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convert $j -resize 50% tmp.jpg
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mv tmp.jpg $j
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done
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fi
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zip -r0 ../$i.zip .
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cd ..
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rm -rf $i
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done
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