Grok Bot
41 lines
1.8 KiB
Python
41 lines
1.8 KiB
Python
"""License status by code. Published 1930 or earlier = US public domain as of 2026. Anything else is unknown."""
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import datetime
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import os
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import re
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import pdftext
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PATTERNS = [r"first\s+published\s+in\s+(\d{4})", r"(?:©|copyright|\(c\))\s*(\d{4})"]
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def find_year(units):
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"""Earliest year the book's own front pages give as first publication or copyright: (year, where, text) or None."""
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for pat in PATTERNS:
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for u in units[:8]:
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m = re.search(pat, u["text"], re.I)
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if m:
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return int(m.group(1)), "pdf p.%d" % u["pdf_page"], m.group(0)
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return None
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def run(cfg, book_dir, book, pdf):
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found = find_year(pdftext.units(pdf))
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limit = cfg["license"]["public_domain_max_year"]
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if found is None:
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status, reason, year = "unknown", "no publication year found in the book's own text", None
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else:
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year, where, quote = found
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if year <= limit:
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status = "public domain"
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reason = "published %d (book text, %s: \"%s\"), %d or earlier, so US public domain as of 2026" % (year, where, quote, limit)
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else:
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status = "unknown"
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reason = "published %d (book text, %s: \"%s\"), later than %d, so the date rule does not clear it; confirm before sharing" % (year, where, quote, limit)
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today = datetime.date.today().isoformat()
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book["published_year"] = year
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book["license"] = {"status": status, "reason": reason, "checked": today}
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with open(os.path.join(book_dir, "LICENSE_STATUS.md"), "w", encoding="utf-8") as f:
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f.write("# License status\n\nStatus: %s\n\nReason: %s\n\nDate checked: %s\n\n"
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"Rule: published %d or earlier is public domain in the US as of 2026; anything else is unknown until confirmed. "
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"Status never blocks audio production. Nothing is published.\n" % (status, reason, today, limit))
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