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macOS shell script to create an .icns icon file from an image input file
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| #!/bin/zsh | |
| # ================================================================================ | |
| # A macOS shell script to create an .icns icon file from an image input file | |
| # | |
| # NOTE: make this file executable first using: | |
| # chmod +x /path/to/icon_maker.sh | |
| # | |
| # -------------------------------------------------------------------------------- | |
| # Source: https://gist.github.com/Swiss-Mac-User/7a1a55e499db618c59718cbffe23318c | |
| # ================================================================================ | |
| # Helper-function to check if the sips command is available | |
| check_sips_installed() { | |
| if ! command -v sips &> /dev/null; then | |
| echo "⚠️ \033[31m The 'sips' command is not available.\033[0m" | |
| echo -e "\tPlease install or ensure you're using a macOS system with 'sips' installed." | |
| exit 1 | |
| fi | |
| } | |
| # Helper-function to check if the input file exists and is valid | |
| check_file_exists() { | |
| if [ ! -f "$icon_path" ]; then | |
| echo "⚠️ \033[31m File '$icon_path' not found!\033[0m" | |
| echo -e "\tTry drag'n'dropping the file after typing: $0 + [space]" | |
| exit 1 | |
| fi | |
| } | |
| # Helper-function to convert non-PNG images to PNG format | |
| convert_to_png() { | |
| local ext="${icon_path##*.}" | |
| if [ "$ext" != "png" ]; then | |
| # Convert the image to PNG format | |
| echo "" && echo "👨🎨 \033[33m Converting $ext to PNG format...\033[0m" | |
| local converted_icon="${icon_path%.*}.png" | |
| sips -s format png "$icon_path" --out "$converted_icon" > /dev/null | |
| icon_path="$converted_icon" | |
| echo "\t✔️ \033[32m done - converted to ${icon_path##*.}\033[0m" | |
| fi | |
| } | |
| # Helper-function to create the .iconset directory | |
| create_iconset_container() { | |
| echo "" && echo "📁 \033[33m Creating new iconset...\033[0m" | |
| local base_name=$(basename "$icon_path" .png) | |
| iconset_container="${icon_dirpath}/${base_name}.iconset" | |
| mkdir -p "$iconset_container" | |
| echo "\t✔️ \033[32m created\033[0m" | |
| } | |
| # Helper-function to generate all icon sizes | |
| generate_icon_sizes() { | |
| local sizes=(16 32 64 128 256 512) | |
| echo "" && echo "✨ \033[33m Generating icon sizes...\033[0m" | |
| for size in "${sizes[@]}"; do | |
| # Generate the normal size icon | |
| sips -z "$size" "$size" "$icon_path" --out "${iconset_container}/icon_${size}x${size}.png" > /dev/null | |
| echo -e "\t✔️ \033[32m ${size}x${size}\033[0m" | |
| # Generate the @2x size icon (double the size) | |
| local size2x=$((size * 2)) | |
| sips -z "$size2x" "$size2x" "$icon_path" --out "${iconset_container}/icon_${size}x${size}@2x.png" > /dev/null | |
| echo -e "\t✔️ \033[32m ${size}x${size}@2x\033[0m" | |
| done | |
| } | |
| # Helper-function to convert the .iconset folder to .icns | |
| convert_iconset_to_icns() { | |
| echo "" && echo "🪄 \033[33m Converting final icns file\033[0m" | |
| iconutil -c icns "$iconset_container" | |
| # Cleanup | |
| rm -R "$iconset_container" | |
| } | |
| # =================================================================== | |
| # Creating the .icns icon-file | |
| # =================================================================== | |
| # Step 1: Check if 'sips' is available | |
| check_sips_installed | |
| # Step 2: Validate the input | |
| if [ $# -eq 0 ]; then | |
| echo "⚠️ \033[31m Missing a file input! Try again using:\033[0m" | |
| echo -e "\t$0 /path/to/icon.png" | |
| exit 1 | |
| fi | |
| icon_path="$1" | |
| icon_dirpath=$(dirname "$icon_path") | |
| check_file_exists | |
| # Step 3: Convert the input file to PNG if needed | |
| convert_to_png | |
| # Step 4: Create the .iconset folder | |
| iconset_container="" | |
| create_iconset_container | |
| # Step 5: Generate icon sizes | |
| generate_icon_sizes | |
| # Step 6: Convert the iconset to .icns | |
| convert_iconset_to_icns | |
| # Complete | |
| echo "" && echo "✅ \033[32m DONE - Icon created successfully in:\033[0m" | |
| echo "\"\033[32m${icon_dirpath}/\033[0m\"" | |
| exit 0 |
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| mkdir -p "MyIcon.iconset" && \ | |
| sips -z 16 16 original_icon.png --out MyIcon.iconset/icon_16x16.png && \ | |
| sips -z 32 32 original_icon.png --out MyIcon.iconset/icon_16x16@2x.png && \ | |
| sips -z 32 32 original_icon.png --out MyIcon.iconset/icon_32x32.png && \ | |
| sips -z 64 64 original_icon.png --out MyIcon.iconset/icon_32x32@2x.png && \ | |
| sips -z 128 128 original_icon.png --out MyIcon.iconset/icon_128x128.png && \ | |
| sips -z 256 256 original_icon.png --out MyIcon.iconset/icon_128x128@2x.png && \ | |
| sips -z 256 256 original_icon.png --out MyIcon.iconset/icon_256x256.png && \ | |
| sips -z 512 512 original_icon.png --out MyIcon.iconset/icon_256x256@2x.png && \ | |
| sips -z 512 512 original_icon.png --out MyIcon.iconset/icon_512x512.png && \ | |
| sips -z 1024 1024 original_icon.png --out MyIcon.iconset/icon_512x512@2x.png && \ | |
| iconutil -c icns MyIcon.iconset && \ | |
| rm -R MyIcon.iconset |
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