signal-bot/signal_bot/versioning.py
Krzysztof kuhy Rudnicki ad93bbfdf7 release: 0.1.1 «Pius I» — commands that explain themselves
Two things the group hit within minutes of 0.1.0, both reported by real
users rather than found by a test.

Somebody typed !korona, got "Za mało danych — wróć za kilka dni." and
nothing else. That answer tells them neither what the command does nor
what it will eventually show, which makes it worse than useless on a
release day when almost every command is empty by design. Every command
now leads with what it is, and the empty answer says what it will show
once there is history and which date it is counting from.

And somebody asked whether "Najczęściej piszesz o 12:00" meant the whole
hour 12-13. It did, and the label did not say so. It now reads "między
12:00 a 13:00". Same fix in kind for the nightly summary line, which
said "średnio 47 znaków" without saying per what -- now "na wiadomość".

A one-line wording fix takes the next pope exactly like a feature does,
per DOCS-changelog.md. Exercised in testbot at the unbumped version
first: !korona, !ja, !dni and !rekordy all ran clean.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015d48t4qsQLBJnDwDeo2Nom
2026-08-30 20:09:14 +02:00

110 lines
3.4 KiB
Python

# Copyright (c) 2026 Krzysztof Rudnicki. MIT licence.
"""Release versions named after the popes, in order.
Release *n* is pope *n*: 0.0.0 is Święty Piotr Apostoł, and the version is a
pure function of the ordinal rather than a judgement about the size of a
change. The one fixed point is Jan Paweł II at 2.13.7, which is what picks
the two constants below -- eight patches per minor, and majors opening at
ordinals 33 and 153:
(264 - 153) = 111 = 13 * 8 + 7 -> 2.13.7
Both earlier majors happen to divide evenly by eight as well (32 = 4 * 8,
120 = 15 * 8), so no bracket needs a fudge factor. The anchors are not
arbitrary either: 33 is Sylwester I, pope through the Edict of Milan and
Nicaea, and 153 is Wiktor II, the first pope elected after the 1054 schism.
"""
from __future__ import annotations
import json
from dataclasses import dataclass
from pathlib import Path
from typing import Any, Final
# Ordinals at which a new major version opens. Ascending, first entry 1.
MAJOR_STARTS: Final = (1, 33, 153)
PATCHES_PER_MINOR: Final = 8
# Which release this build is. Bump by one per release; everything else,
# including the version string in pyproject.toml, follows from it.
RELEASE_ORDINAL: Final = 10
_POPES_FILE: Final = Path(__file__).with_name("popes.json")
@dataclass(frozen=True, slots=True)
class Pope:
"""One entry of the papal list, as the version ladder needs it."""
ordinal: int
name: str
# The pl.wikipedia article title, which is name plus any "(papież)"
# disambiguator -- so it is the URL slug, and name is not.
title: str
reign: str
portrait: str
latin: str
def _load() -> tuple[Pope, ...]:
"""Read popes.json once, at import."""
document: dict[str, Any] = json.loads(_POPES_FILE.read_text(encoding="utf-8"))
return tuple(
Pope(
ordinal=int(entry["ordinal"]),
name=str(entry["name"]),
title=str(entry["title"]),
reign=str(entry["reign"]),
portrait=str(entry["portrait"]),
latin=str(entry["latin"]),
)
for entry in document["popes"]
)
POPES: Final = _load()
def version_for(ordinal: int) -> str:
"""Return the dotted version string for the given papal ordinal.
Raises:
ValueError: if the ordinal is outside the known list.
"""
if not 1 <= ordinal <= len(POPES):
message = f"no pope with ordinal {ordinal}; the list has {len(POPES)}"
raise ValueError(message)
major = max(index for index, start in enumerate(MAJOR_STARTS) if ordinal >= start)
offset = ordinal - MAJOR_STARTS[major]
return f"{major}.{offset // PATCHES_PER_MINOR}.{offset % PATCHES_PER_MINOR}"
def pope_for(ordinal: int) -> Pope:
"""Return the pope with the given ordinal.
Raises:
ValueError: if the ordinal is outside the known list.
"""
if not 1 <= ordinal <= len(POPES):
message = f"no pope with ordinal {ordinal}; the list has {len(POPES)}"
raise ValueError(message)
return POPES[ordinal - 1]
def ordinal_for(version: str) -> int:
"""Return the papal ordinal a version string denotes.
Raises:
ValueError: if no release carries that version.
"""
for pope in POPES:
if version_for(pope.ordinal) == version:
return pope.ordinal
message = f"no release carries version {version!r}"
raise ValueError(message)
__version__: Final = version_for(RELEASE_ORDINAL)
POPE: Final = pope_for(RELEASE_ORDINAL)