ZacharyZhang-NYandClaude Opus 5.5
a1b8c18ffd
The walk over cargo metadata ignored an edge's target, so lopdf (Linux only, a test dependency elsewhere) counted on Windows. Linux needs the BSD-3-Clause text for alloc-stdlib, which ships no licence file. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
53 lines
2.7 KiB
Python
53 lines
2.7 KiB
Python
"""Notices of every crate built into packages. Usage: crates.py <package>..."""
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import json
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import pathlib
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import subprocess
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import sys
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NAMES = ("licen", "copying", "notice", "copyright", "unlicense")
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root = pathlib.Path(__file__).resolve().parent.parent
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standard = root / "packaging" / "licenses"
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host = next(line.split()[1] for line in subprocess.run(
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["rustc", "-vV"], check=True, capture_output=True, text=True).stdout.splitlines() if line.startswith("host:"))
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meta = json.loads(subprocess.run(
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["cargo", "metadata", "--format-version", "1", "--locked",
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"--manifest-path", str(root / "Cargo.toml")],
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check=True, capture_output=True, text=True).stdout)
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by_id = {package["id"]: package for package in meta["packages"]}
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own = set(meta["workspace_members"])
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if len([pid for pid in own if by_id[pid]["name"] in sys.argv[1:]]) != len(sys.argv) - 1:
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sys.exit(f"crates.py: unknown package among {sys.argv[1:]}")
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# Cargo decides which normal edges link on this target.
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tree = subprocess.run(
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["cargo", "tree", "--locked", "-e", "normal", "--target", host, "--prefix", "none", "-f", "{p}",
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"--manifest-path", str(root / "Cargo.toml"), *[arg for name in sys.argv[1:] for arg in ("-p", name)]],
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check=True, capture_output=True, text=True).stdout
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linked = {tuple(line.split()[:2]) for line in tree.splitlines() if line.strip()}
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wanted = {pid for pid, package in by_id.items() if (package["name"], "v" + package["version"]) in linked}
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out, missing = [], []
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for pid in sorted(wanted - own, key=lambda pid: (by_id[pid]["name"], by_id[pid]["version"])):
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package = by_id[pid]
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folder = pathlib.Path(package["manifest_path"]).parent
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files = sorted(path for path in folder.iterdir()
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if path.is_file() and path.name.lower().startswith(NAMES))
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if package.get("license_file"):
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files.append(folder / package["license_file"])
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head = f"{package['name']} {package['version']} — {package['license'] or 'no licence field'}"
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out.append("=" * 78 + f"\n{head}\n" + "=" * 78)
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if files:
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out += [f"--- {path.name}\n{path.read_text(errors='replace')}" for path in dict.fromkeys(files)]
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else:
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# No file shipped: the expression's standard text, with its authors.
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ids = (package["license"] or "").replace("(", " ").replace(")", " ").replace("/", " ").split()
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text = next((standard / f"{spdx}.txt" for spdx in ids if (standard / f"{spdx}.txt").is_file()), None)
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if text is None:
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missing.append(head)
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continue
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authors = ", ".join(package["authors"]) or package["name"] + " developers"
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out.append(f"Copyright (c) {authors}\n--- {text.stem}\n{text.read_text()}")
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if missing:
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sys.exit("crates.py: no licence text for:\n " + "\n ".join(missing))
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print("\n".join(out))
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