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#!/bin/bash
set -eu
# Converts cardset images and config files in subdirs of the current
# directory from input-format to output-format (default: gif to bmp).
#
# Example to convert from gif format to png:
#
# $> cardconv gif png
#
# Needs package 'ImageMagick' being installed.
ifo='gif'
ofo='bmp'
if [ $# -eq 2 ]; then
ifo=$1
ofo=$2
elif [ $# -ne 0 ]; then
echo "Usage: cardconv [INPUTFORMAT OUTPUTFORMAT]"
echo "If formats are not specified, converts $ifo to $ofo."
exit 1
fi
# Returns true if $1/config.txt exists and contains a mention of the input format
# file extension.
chkdir() {
grep -qi "\.${ifo}" "${1}/config".txt
return $?
}
# Usage: convdir in_dir out_dir
convdir() {
mkdir -p "$2"
# Convert all images
if [ $ofo == 'png' ]; then
for i in $1/*.$ifo; do
convert "$i" "-matte" "-quality" "95" "png32:$2/$(basename $i .$ifo).$ofo"
done
else
for i in $1/*.$ifo; do
convert "$i" "$2/$(basename $i .$ifo).$ofo"
done
fi
# Convert config.txt
if [ -f $1/config.txt ]; then
sed "s/\.${ifo}/.${ofo}/g" $1/config.txt > $2/config.txt
fi
}
# Check all cardsets.
for in_dir in cardset-*; do
out_dir=${in_dir}-${ofo}
if [[ ! $in_dir =~ -$ofo$ ]] && [ ! -d $out_dir ] && chkdir $in_dir; then
convdir $in_dir $out_dir
echo "$out_dir created"
fi
done
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