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| 1 | +#!/usr/bin/env python3 |
| 2 | +"""Update ``[tool.braintrust.matrix].*.latest`` pins in ``pyproject.toml``. |
| 3 | +
|
| 4 | +This script reads the current matrix table, fetches the newest published version |
| 5 | +for each package from PyPI, and rewrites only the ``latest = ...`` lines in the |
| 6 | +matching matrix sections. |
| 7 | +
|
| 8 | +Usage: |
| 9 | + python scripts/update-matrix-latest.py # apply updates in place |
| 10 | + python scripts/update-matrix-latest.py --dry-run |
| 11 | +""" |
| 12 | + |
| 13 | +import argparse |
| 14 | +import json |
| 15 | +import pathlib |
| 16 | +import re |
| 17 | +import sys |
| 18 | +import urllib.error |
| 19 | +import urllib.parse |
| 20 | +import urllib.request |
| 21 | + |
| 22 | + |
| 23 | +if sys.version_info >= (3, 11): |
| 24 | + import tomllib |
| 25 | +else: |
| 26 | + try: |
| 27 | + import tomllib |
| 28 | + except ModuleNotFoundError: |
| 29 | + import tomli as tomllib # type: ignore[no-redef] |
| 30 | + |
| 31 | + |
| 32 | +_PROJECT_DIR = pathlib.Path(__file__).resolve().parent.parent |
| 33 | +_PYPROJECT = _PROJECT_DIR / "pyproject.toml" |
| 34 | +_MATRIX_SECTION_PREFIX = "[tool.braintrust.matrix." |
| 35 | +_LATEST_LINE_RE = re.compile(r'^(?P<indent>\s*)latest\s*=\s*"(?P<req>[^"]+)"(?P<suffix>\s*(?:#.*)?)$') |
| 36 | +_EXACT_REQ_RE = re.compile(r"^(?P<name>[A-Za-z0-9_.-]+)==(?P<version>[^\s]+)$") |
| 37 | +_USER_AGENT = "braintrust-sdk-python dependency updater" |
| 38 | +_TIMEOUT_SECS = 30 |
| 39 | + |
| 40 | + |
| 41 | +class UpdateError(RuntimeError): |
| 42 | + """Raised when the matrix latest pins cannot be updated safely.""" |
| 43 | + |
| 44 | + |
| 45 | +def _load_matrix() -> dict[str, str]: |
| 46 | + pyproject = tomllib.loads(_PYPROJECT.read_text()) |
| 47 | + matrix = pyproject.get("tool", {}).get("braintrust", {}).get("matrix", {}) |
| 48 | + |
| 49 | + latest_reqs: dict[str, str] = {} |
| 50 | + for key, versions in matrix.items(): |
| 51 | + latest_req = versions.get("latest") |
| 52 | + if latest_req: |
| 53 | + latest_reqs[key] = latest_req |
| 54 | + return latest_reqs |
| 55 | + |
| 56 | + |
| 57 | +def _parse_exact_req(req: str) -> tuple[str, str]: |
| 58 | + match = _EXACT_REQ_RE.fullmatch(req.strip()) |
| 59 | + if not match: |
| 60 | + raise UpdateError(f"Expected an exact 'package==version' requirement, got: {req}") |
| 61 | + return match.group("name"), match.group("version") |
| 62 | + |
| 63 | + |
| 64 | +def _fetch_latest_version(package_name: str) -> str: |
| 65 | + url = f"https://pypi.org/pypi/{urllib.parse.quote(package_name)}/json" |
| 66 | + request = urllib.request.Request(url, headers={"User-Agent": _USER_AGENT}) |
| 67 | + |
| 68 | + try: |
| 69 | + with urllib.request.urlopen(request, timeout=_TIMEOUT_SECS) as response: |
| 70 | + payload = json.load(response) |
| 71 | + except urllib.error.HTTPError as exc: |
| 72 | + raise UpdateError(f"Failed to fetch {package_name} metadata from PyPI: HTTP {exc.code}") from exc |
| 73 | + except urllib.error.URLError as exc: |
| 74 | + raise UpdateError(f"Failed to fetch {package_name} metadata from PyPI: {exc.reason}") from exc |
| 75 | + |
| 76 | + version = str(payload.get("info", {}).get("version", "")).strip() |
| 77 | + if not version: |
| 78 | + raise UpdateError(f"PyPI did not return a version for {package_name}") |
| 79 | + return version |
| 80 | + |
| 81 | + |
| 82 | +def _compute_updates() -> dict[str, tuple[str, str]]: |
| 83 | + latest_reqs = _load_matrix() |
| 84 | + package_cache: dict[str, str] = {} |
| 85 | + updates: dict[str, tuple[str, str]] = {} |
| 86 | + |
| 87 | + for matrix_key, current_req in latest_reqs.items(): |
| 88 | + package_name, current_version = _parse_exact_req(current_req) |
| 89 | + latest_version = package_cache.get(package_name) |
| 90 | + if latest_version is None: |
| 91 | + latest_version = _fetch_latest_version(package_name) |
| 92 | + package_cache[package_name] = latest_version |
| 93 | + |
| 94 | + if latest_version != current_version: |
| 95 | + updates[matrix_key] = (current_req, f"{package_name}=={latest_version}") |
| 96 | + |
| 97 | + return updates |
| 98 | + |
| 99 | + |
| 100 | +def _rewrite_pyproject(text: str, replacements: dict[str, tuple[str, str]]) -> tuple[str, list[str]]: |
| 101 | + if not replacements: |
| 102 | + return text, [] |
| 103 | + |
| 104 | + lines = text.splitlines(keepends=True) |
| 105 | + touched_keys: list[str] = [] |
| 106 | + current_matrix_key: str | None = None |
| 107 | + |
| 108 | + for index, line in enumerate(lines): |
| 109 | + stripped = line.strip() |
| 110 | + if stripped.startswith("[") and stripped.endswith("]"): |
| 111 | + current_matrix_key = None |
| 112 | + if stripped.startswith(_MATRIX_SECTION_PREFIX): |
| 113 | + current_matrix_key = stripped[len(_MATRIX_SECTION_PREFIX) : -1] |
| 114 | + continue |
| 115 | + |
| 116 | + if current_matrix_key is None or current_matrix_key not in replacements: |
| 117 | + continue |
| 118 | + |
| 119 | + line_body = line[:-1] if line.endswith("\n") else line |
| 120 | + newline = "\n" if line.endswith("\n") else "" |
| 121 | + match = _LATEST_LINE_RE.fullmatch(line_body) |
| 122 | + if not match: |
| 123 | + continue |
| 124 | + |
| 125 | + old_req, new_req = replacements[current_matrix_key] |
| 126 | + if match.group("req") != old_req: |
| 127 | + raise UpdateError( |
| 128 | + f"Expected latest pin for matrix key {current_matrix_key!r} to be {old_req!r}, " |
| 129 | + f"found {match.group('req')!r}" |
| 130 | + ) |
| 131 | + |
| 132 | + lines[index] = f'{match.group("indent")}latest = "{new_req}"{match.group("suffix")}{newline}' |
| 133 | + touched_keys.append(current_matrix_key) |
| 134 | + current_matrix_key = None |
| 135 | + |
| 136 | + missing = sorted(set(replacements) - set(touched_keys)) |
| 137 | + if missing: |
| 138 | + raise UpdateError(f"Did not find latest lines for matrix key(s): {', '.join(missing)}") |
| 139 | + |
| 140 | + return "".join(lines), touched_keys |
| 141 | + |
| 142 | + |
| 143 | +def main() -> None: |
| 144 | + parser = argparse.ArgumentParser(description=__doc__) |
| 145 | + parser.add_argument("--dry-run", action="store_true", help="Show updates without writing pyproject.toml") |
| 146 | + args = parser.parse_args() |
| 147 | + |
| 148 | + replacements = _compute_updates() |
| 149 | + if not replacements: |
| 150 | + print("No matrix latest pins to update.") |
| 151 | + return |
| 152 | + |
| 153 | + original_text = _PYPROJECT.read_text() |
| 154 | + updated_text, touched_keys = _rewrite_pyproject(original_text, replacements) |
| 155 | + |
| 156 | + for matrix_key in touched_keys: |
| 157 | + old_req, new_req = replacements[matrix_key] |
| 158 | + print(f"{matrix_key}: {old_req} -> {new_req}") |
| 159 | + |
| 160 | + if args.dry_run: |
| 161 | + return |
| 162 | + |
| 163 | + _PYPROJECT.write_text(updated_text) |
| 164 | + print(f"Updated {_PYPROJECT.relative_to(_PROJECT_DIR)}") |
| 165 | + |
| 166 | + |
| 167 | +if __name__ == "__main__": |
| 168 | + main() |
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