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133 lines
4.6 KiB
Python
133 lines
4.6 KiB
Python
#!/usr/bin/env python3
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"""生成 vendor/fonts/manifest.json。
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数据源：vendor/fonts/tools/fonts.conf（字体元数据）+ vendor/fonts/*.woff2（实际产物）。
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每次跑完 subset-fonts.sh 会自动调用；也可单独运行：
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python3 vendor/fonts/tools/gen-manifest.py
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"""
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from __future__ import annotations
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import hashlib
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import json
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import subprocess
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import sys
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from datetime import date
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from pathlib import Path
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HERE = Path(__file__).resolve().parent
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OUT_DIR = HERE.parent
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ROOT = OUT_DIR.parent.parent # 仓库根，用于生成 vendor/fonts/... 形式的相对路径
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CONF = HERE / "fonts.conf"
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WEIGHTS = (("regular", 400), ("bold", 700))
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SUBSET_DESC = "ASCII + GB2312 一级/二级汉字 + 中文标点 + 数字符号"
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def charset_count() -> int:
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"""复用 subset-fonts.sh 的字符集生成逻辑，保证清单与产物一致。"""
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code = (
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"chars=set()\n"
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"for c in range(0x20,0x7F): chars.add(chr(c))\n"
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"for hi in range(0xA1,0xFF):\n"
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" for lo in range(0xA1,0xFF):\n"
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" try: chars.add(bytes((hi,lo)).decode('gb2312'))\n"
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" except UnicodeDecodeError: pass\n"
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"chars.update(' ·—…‘’“”※→←↑↓√×÷±≈≠≤≥∞°℃℉￥€£©®™№§¶†‡•‰′″〇')\n"
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"chars.update('「」『』【】〔〕〖〗《》〈〉')\n"
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"chars.update('０１２３４５６７８９')\n"
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"chars.update('！＂＃＄％＆＇（）＊＋，－．／：；＜＝＞？＠［＼］＾＿｀｛｜｝～')\n"
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"print(len(chars))\n"
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)
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return int(subprocess.run([sys.executable, "-c", code], capture_output=True, text=True, check=True).stdout)
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def human(n: int) -> str:
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return f"{n / 1024 / 1024:.2f} MB" if n >= 1024 * 1024 else f"{n / 1024:.0f} KB"
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def read_conf() -> list[dict[str, str]]:
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rows = []
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for line in CONF.read_text(encoding="utf-8").splitlines():
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line = line.strip()
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if not line or line.startswith("#"):
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continue
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fid, name, family, category, license_, source, reg, bold = (p.strip() for p in line.split("|"))
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rows.append(
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{
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"id": fid,
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"displayName": name,
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"fontFamily": family,
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"category": category,
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"license": license_,
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"source": source,
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"regular": reg,
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"bold": bold,
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}
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)
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return rows
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def main() -> int:
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fonts = []
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grand_total = 0
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for row in read_conf():
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weights = []
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font_total = 0
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for weight_name, weight_class in WEIGHTS:
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path = OUT_DIR / f"{row['id']}-{weight_name}.woff2"
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if not path.is_file():
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print(f"缺少产物: {path}，请先运行 subset-fonts.sh", file=sys.stderr)
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return 1
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data = path.read_bytes()
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size = len(data)
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font_total += size
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weights.append(
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{
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"weight": weight_class,
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"style": "normal",
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"file": path.name,
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"path": str(path.relative_to(ROOT)),
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"bytes": size,
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"size": human(size),
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"sha256": hashlib.sha256(data).hexdigest(),
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}
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)
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grand_total += font_total
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fonts.append(
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{
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"id": row["id"],
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"displayName": row["displayName"],
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"fontFamily": row["fontFamily"],
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"cssVar": f"--font-{row['id']}",
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"category": row["category"],
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"license": row["license"],
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"source": row["source"],
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"totalBytes": font_total,
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"totalSize": human(font_total),
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"weights": weights,
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}
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)
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manifest = {
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"version": 1,
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"generatedAt": date.today().isoformat(),
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"generator": "vendor/fonts/tools/subset-fonts.sh",
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"subset": {
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"charset": SUBSET_DESC,
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"charCount": charset_count(),
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"format": "woff2",
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"layoutFeatures": "kern,liga,clig,calt,ccmp,locl,mark,mkmk",
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},
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"totalBytes": grand_total,
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"totalSize": human(grand_total),
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"fonts": fonts,
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}
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out = OUT_DIR / "manifest.json"
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out.write_text(json.dumps(manifest, ensure_ascii=False, indent=2) + "\n", encoding="utf-8")
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print(f"manifest.json: {len(fonts)} 套字体，{len(fonts) * 2} 个文件，合计 {human(grand_total)}")
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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