Generate font file for Project Aura

regen_jp_fonts.bash

#!/usr/bin/env bash
set -euo pipefail

REPO="$(pwd)"
STRINGS="src/ui/strings/UiStrings.ja.inc"
FONT="../NotoSansJP/static/NotoSansJP-Regular.ttf"

cd "$REPO" 2>/dev/null || { echo "Run from repo root or place script there"; exit 1; }
[[ -f "$STRINGS" ]] || { echo "Not found: $STRINGS"; exit 1; }
[[ -f "$FONT" ]]    || { echo "Not found: $FONT"; exit 1; }

# Extract all non-ASCII chars from the strings file, deduplicated and sorted
SYMBOLS=$(python3 -c "
import re, sys
text = open('$STRINGS', encoding='utf-8').read()
strings = re.findall(r'\"((?:[^\"\\\]|\\\\.)*?)\"', text)
chars = sorted(set(c for s in strings for c in s if ord(c) > 126))
print(''.join(chars) + '©°³µ∞≈≤？', end='')
")

echo "Symbols: ${#SYMBOLS} chars"

for SIZE in 14 18; do
    NAME="ui_font_noto_sans_jp_reg_${SIZE}"
    OUT="src/ui/${NAME}.c"
    echo -n "Generating ${OUT} ... "
    npx lv_font_conv \
        --bpp 4 --size "$SIZE" --no-compress \
        --font "$FONT" \
        --symbols "${SYMBOLS}語" \
        --range 32-126 \
        --format lvgl \
        --lv-font-name "$NAME" \
        -o "$OUT"
    echo "done"
done