72 lines
2.2 KiB
Bash
Executable file
72 lines
2.2 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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FRONTEND_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
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PUBLIC_DIR="${FRONTEND_DIR}/public"
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SRC_LOGO="${PUBLIC_DIR}/scholar_logo.png"
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SRC_FAVICON="${PUBLIC_DIR}/scholar_favicon.png"
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SRC_FAVICON_ALT="${PUBLIC_DIR}/scholarr_favicon.png"
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TMP_DIR="$(mktemp -d)"
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TMP_ALPHA="${TMP_DIR}/logo-alpha-mask.png"
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TMP_GLYPH="${TMP_DIR}/logo-glyph-white.png"
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TMP_CANVAS="${TMP_DIR}/logo-canvas.png"
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TMP_ICON="${TMP_DIR}/logo-icon.png"
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BRAND_COLOR="${1:-#495e6f}"
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if ! command -v magick >/dev/null 2>&1; then
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echo "ImageMagick is required (missing 'magick' command)." >&2
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exit 1
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fi
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if [[ ! -f "${SRC_LOGO}" ]]; then
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echo "Missing source logo at ${SRC_LOGO}" >&2
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exit 1
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fi
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if [[ ! -f "${SRC_FAVICON}" && -f "${SRC_FAVICON_ALT}" ]]; then
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SRC_FAVICON="${SRC_FAVICON_ALT}"
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fi
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mkdir -p "${PUBLIC_DIR}"
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if [[ -f "${SRC_FAVICON}" ]]; then
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# Prefer dedicated favicon artwork when provided.
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magick "${SRC_FAVICON}" \
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-background none \
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-gravity center \
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-resize 1024x1024^ \
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-extent 1024x1024 \
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"${TMP_ICON}"
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else
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# Build a high-contrast icon from the logo: solid brand background + white logo.
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magick "${SRC_LOGO}" -alpha extract "${TMP_ALPHA}"
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magick -size 1024x1024 xc:white "${TMP_ALPHA}" \
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-compose CopyOpacity \
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-composite \
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"${TMP_GLYPH}"
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magick -size 1024x1024 "xc:${BRAND_COLOR}" "${TMP_CANVAS}"
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magick "${TMP_GLYPH}" -resize 760x760 "${TMP_GLYPH}"
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magick "${TMP_CANVAS}" "${TMP_GLYPH}" \
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-gravity center \
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-compose over \
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-composite \
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"${TMP_ICON}"
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fi
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magick "${TMP_ICON}" -resize 16x16 "${PUBLIC_DIR}/favicon-16x16.png"
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magick "${TMP_ICON}" -resize 32x32 "${PUBLIC_DIR}/favicon-32x32.png"
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magick "${TMP_ICON}" -resize 180x180 "${PUBLIC_DIR}/apple-touch-icon.png"
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magick "${TMP_ICON}" -resize 192x192 "${PUBLIC_DIR}/android-chrome-192x192.png"
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magick "${TMP_ICON}" -resize 512x512 "${PUBLIC_DIR}/android-chrome-512x512.png"
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magick \
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\( "${TMP_ICON}" -resize 16x16 \) \
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\( "${TMP_ICON}" -resize 32x32 \) \
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\( "${TMP_ICON}" -resize 48x48 \) \
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"${PUBLIC_DIR}/favicon.ico"
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rm -rf "${TMP_DIR}"
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echo "Generated favicon + app icon assets in ${PUBLIC_DIR} (logo: ${SRC_LOGO}, favicon source: ${SRC_FAVICON})"
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