58 lines
1.8 KiB
Bash
58 lines
1.8 KiB
Bash
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#!/usr/bin/env bash
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# Generate build/icon.icns from the macOS app artwork using Apple's native
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# iconutil pipeline. Keep hand-tuned 16px/32px 1x artwork: shrinking the
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# large macOS artwork turns its subtle highlight into a bright one-pixel frame.
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set -euo pipefail
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ROOT="$(cd "$(dirname "$0")/.." && pwd)"
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SOURCE="$ROOT/public/icon.png"
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VECTOR_SOURCE="$ROOT/public/icon.svg"
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OUTPUT="$ROOT/build/icon.icns"
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TEMP_ROOT="$(mktemp -d "${TMPDIR:-/tmp}/netcatty-mac-icon.XXXXXX")"
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ICONSET="$TEMP_ROOT/icon.iconset"
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SMALL_VECTOR="$TEMP_ROOT/icon-small.svg"
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SMALL_RASTER="$TEMP_ROOT/icon-small.png"
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cleanup() {
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find "$TEMP_ROOT" -type f -delete
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rmdir "$ICONSET" "$TEMP_ROOT"
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}
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trap cleanup EXIT
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if [[ "$(uname -s)" != "Darwin" ]]; then
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echo "error: generating ICNS requires macOS iconutil and sips" >&2
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exit 1
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fi
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for source in "$SOURCE" "$VECTOR_SOURCE"; do
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if [[ ! -f "$source" ]]; then
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echo "error: source icon not found: $source" >&2
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exit 1
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fi
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done
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mkdir -p "$ICONSET"
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# The large artwork has a subtle outer highlight. At 1x it collapses into a
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# bright one-pixel frame, so omit only that final SVG rect for 16px/32px.
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awk '
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BEGIN { skip = 0 }
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/<rect x="104\.0" y="104\.0"/ { skip = 1 }
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!skip { print }
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skip && /\/>/ { skip = 0 }
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' "$VECTOR_SOURCE" > "$SMALL_VECTOR"
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sips -s format png "$SMALL_VECTOR" --out "$SMALL_RASTER" >/dev/null
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for size in 16 32 128 256 512; do
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retina_size=$((size * 2))
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if [[ "$size" = 16 || "$size" = 32 ]]; then
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sips -z "$size" "$size" "$SMALL_RASTER" \
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--out "$ICONSET/icon_${size}x${size}.png" >/dev/null
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else
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sips -z "$size" "$size" "$SOURCE" --out "$ICONSET/icon_${size}x${size}.png" >/dev/null
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fi
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sips -z "$retina_size" "$retina_size" "$SOURCE" \
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--out "$ICONSET/icon_${size}x${size}@2x.png" >/dev/null
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done
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iconutil --convert icns "$ICONSET" --output "$OUTPUT"
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echo "wrote build/icon.icns"
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