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# Fix an iOS-converted PNG
# By Tom Harrington, June 1 2012.
fixpng () {
if [ -z "$1" ]; then
echo "Usage: fixpng <inputFile> [outputFile]"
return -1
else
inputFile=$1
# Only "png" and "PNG" are allowed
pngRegex='.*.(png|PNG)$'
if [[ $inputFile =~ $pngRegex ]]; then
if [ -n "$2" ]; then
# Use whatever name was provided
outputFile=$2
else
# Generate a filename, preserve file extension case.
extension=${BASH_REMATCH[1]}
outputFile=${inputFile%.$extension}-fixed.$extension
fi
echo "Converting $inputFile to $outputFile"
xcrun -sdk iphoneos pngcrush -q -revert-iphone-optimizations $inputFile $outputFile
else
echo "Skipping $inputFile since it's not a png"
fi
fi
}
# Fix a whole mess of pngs at once
fixpngs () {
if [ -z "$1" ]; then
echo "Usage: fixpng <inputFiles> [outputFile]"
return -1
else
for file in "$@"; do fixpng $file; done
fi
}