82 lines
3.8 KiB
Python
82 lines
3.8 KiB
Python
#!/usr/bin/env python3
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"""Load packages into a SQLite database with the tables of sql/doc.sql and sql/store.sql.
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Non-normative tooling.
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Usage: python3 tools/load.py --sqlite lab.db PACKAGE [PACKAGE ...]
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python3 tools/load.py --sqlite lab.db --bundle --built-from REV PACKAGE [PACKAGE ...]
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A package is a folder, or a zipped package (`.sct.zip`), unpacked under the rules of spec/12 §12.2 first.
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With --bundle the new file is a scienting-bundle/1: it also gets the tables of sql/bundle-sqlite.sql,
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the full-text search index and bundle_meta (spec/13 §13.5).
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Each package is validated first, and nothing is loaded if any package fails.
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Files without tables of their own (assets, datasets, derived files) are copied by SHA-256 into an
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asset store folder beside the database, named <database>.assets/.
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"""
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import argparse
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import os
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import sqlite3
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import sys
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import tempfile
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ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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sys.path.insert(0, ROOT)
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from tools.oracle import db, package # noqa: E402
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from tools.oracle.schema import Store # noqa: E402
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def main():
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ap = argparse.ArgumentParser(description=__doc__.splitlines()[0])
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ap.add_argument("--sqlite", required=True, help="the database file; created with the tables if new")
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ap.add_argument("--bundle", action="store_true", help="build a new scienting-bundle/1 file with search")
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ap.add_argument("--built-from", help="with --bundle: the store revision the packages come from")
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ap.add_argument("--store", help="with --bundle: the store's name (default: the packages' common store)")
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ap.add_argument("--max-size", metavar="BYTES", type=int, default=package.ZIP_LIMIT,
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help="refuse a zipped package that expands past this many bytes (default %d)" % package.ZIP_LIMIT)
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ap.add_argument("packages", nargs="+", help="package folders or zipped packages")
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a = ap.parse_args()
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if a.bundle and (os.path.exists(a.sqlite) or not a.built_from):
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ap.error("--bundle needs --built-from and a database file that does not exist yet")
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store, bad = Store(os.path.join(ROOT, "schemas")), False
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with tempfile.TemporaryDirectory() as tmp:
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folders = []
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for i, p in enumerate(a.packages):
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if package.is_zip(p):
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try:
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folders.append(package.read_zip(p, os.path.join(tmp, str(i)), a.max_size))
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except package.Refusal as e:
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print("%s: %s: %s" % (p, e.rule, e.message), file=sys.stderr)
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bad = True
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continue
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else:
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folders.append(p)
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for e in package.validate(folders[-1], store).errors:
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print("%s: %s: %s: %s" % (p, e["where"], e["rule"], e["message"]), file=sys.stderr)
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bad = True
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if bad:
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sys.exit("Nothing was loaded.")
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new = not os.path.exists(a.sqlite)
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conn = sqlite3.connect(a.sqlite)
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if a.bundle:
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db.create_bundle(conn, os.path.join(ROOT, "sql"))
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elif new:
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db.create(conn, os.path.join(ROOT, "sql"))
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for p in folders:
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key = db.load(conn, p, a.sqlite + ".assets")
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n = conn.execute("SELECT COUNT(*) FROM nodes WHERE doc_key = ?", (key,)).fetchone()[0]
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if a.bundle:
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print("%s: %d nodes, %d search rows" % (key, n, db.index(conn, key)))
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else:
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print("%s: %d nodes" % (key, n))
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if a.bundle:
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stores = {r[0] for r in conn.execute("SELECT DISTINCT store FROM documents WHERE store IS NOT NULL")}
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store_name = a.store or (stores.pop() if len(stores) == 1 else None)
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if store_name is None:
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sys.exit("The packages name no single store; give one with --store.")
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db.write_meta(conn, store_name, a.built_from)
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conn.commit()
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if __name__ == "__main__":
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main()
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