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A ZSH command file to produce the various PNG files required for iOS and macOS app Icons using `sips` (scriptable image processing system) available on any macOS. The resulting PNGs in the "AppIcons" folder can then be dragged into Xcode's `Assets.xcassets` onto a placeholder for an AppIcon.
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#!/bin/zsh | |
# Shell Script to create all relevant icons from an high resolution artwork | |
if [ "x$1" != "x" -a -f "$1" ] ; then | |
INPUT=$1 | |
else | |
INPUT="Artwork.png" | |
fi | |
if [ ! -f "$INPUT" ]; then | |
echo "Input file not specified" | |
exit 1 | |
fi | |
mkdir -p AppIcons | |
while IFS= read -r line ; do | |
FILENAME=${line% *} | |
SIZE=${line#* } | |
if [ "x$FILENAME" != "x" ] ; then | |
COMMAND="sips -s format png \"$INPUT\" --resampleHeightWidth $SIZE $SIZE --out \"AppIcons/$FILENAME\"" | |
echo "$COMMAND" | |
eval "$COMMAND" | |
else | |
echo "" | |
fi | |
done <<EOF | |
AppIcon~iPhone-20@2x.png 40 | |
AppIcon~iPhone-20@3x.png 60 | |
AppIcon~iPhone-29@1x.png 29 | |
AppIcon~iPhone-29@2x.png 58 | |
AppIcon~iPhone-29@3x.png 87 | |
AppIcon~iPhone-40@2x.png 80 | |
AppIcon~iPhone-40@3x.png 120 | |
AppIcon~iPhone-57@1x.png 57 | |
AppIcon~iPhone-57@2x.png 114 | |
AppIcon~iPhone-60@2x.png 120 | |
AppIcon~iPhone-60@3x.png 180 | |
AppIcon~iPad-20@1x.png 20 | |
AppIcon~iPad-20@2x.png 40 | |
AppIcon~iPad-29@1x.png 29 | |
AppIcon~iPad-29@2x.png 58 | |
AppIcon~iPad-40@1x.png 40 | |
AppIcon~iPad-40@2x.png 80 | |
AppIcon~iPad-76@1x.png 76 | |
AppIcon~iPad-76@2x.png 152 | |
AppIcon~iPad-83.5@2x.png 167 | |
AppIcon~iOS-Marketing-1024@1x.png 1024 | |
AppIcon~macOS-16@1x.png 16 | |
AppIcon~macOS-16@2x.png 32 | |
AppIcon~macOS-32@1x.png 32 | |
AppIcon~macOS-32@2x.png 64 | |
AppIcon~macOS-128@1x.png 128 | |
AppIcon~macOS-128@2x.png 256 | |
AppIcon~macOS-256@1x.png 256 | |
AppIcon~macOS-256@2x.png 512 | |
AppIcon~macOS-512@1x.png 512 | |
AppIcon~macOS-512@2x.png 1024 | |
EOF |
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