From a6235d3d0d39da2858f1e97bdb86553064a7672f Mon Sep 17 00:00:00 2001
From: Anselm Hahn <Anselm.Hahn@gmail.com>
Date: Sat, 27 Jun 2026 11:50:19 +0200
Subject: [PATCH] feat: replace mirror.py + versions.py with repo-release-tools
 v1.10.1 sync
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Upgrades the mirror pipeline to use `rrt sync --bump --commit --tag`,
which handles PyPI polling, file updates, commits, and tagging in a
single call — eliminating both mirror.py and versions.py entirely.

Adds [tool.rrt.upstream] config (package = "ruff", provider = "pypi")
so rrt can discover newer ruff releases autonomously.

Closes #171 follow-up: the TOML rev pattern regression is also covered
by the rrt pin_targets config introduced in the previous commit.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 .github/workflows/main.yml |  5 ++-
 mirror.py                  | 85 --------------------------------------
 pyproject.toml             | 31 ++++++++++++++
 3 files changed, 35 insertions(+), 86 deletions(-)
 delete mode 100644 mirror.py

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c8fc3b8..2459ff0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -25,7 +25,10 @@ jobs:
           git config user.name "$GITHUB_ACTOR"
           git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
 
-      - run: uv run --no-project mirror.py
+      - name: Mirror new ruff versions
+        run: uvx "repo-release-tools==$RRT_VERSION" sync --bump --commit --tag
+        env:
+          RRT_VERSION: "1.10.1"
 
       - name: check for unpushed commits
         id: check_unpushed
diff --git a/mirror.py b/mirror.py
deleted file mode 100644
index ad1cbc6..0000000
--- a/mirror.py
+++ /dev/null
@@ -1,85 +0,0 @@
-# /// script
-# requires-python = ">=3.12"
-# dependencies = [
-#   "packaging==23.1",
-#   "urllib3==2.0.5",
-# ]
-# ///
-"""Update ruff-pre-commit to the latest version of ruff."""
-
-import re
-import subprocess
-import tomllib
-import typing
-from pathlib import Path
-
-import urllib3
-from packaging.requirements import Requirement
-from packaging.version import Version
-
-
-def main():
-    with open(Path(__file__).parent / "pyproject.toml", "rb") as f:
-        pyproject = tomllib.load(f)
-
-    all_versions = get_all_versions()
-    current_version = get_current_version(pyproject=pyproject)
-    target_versions = [v for v in all_versions if v > current_version]
-
-    for version in target_versions:
-        paths = process_version(version)
-        if subprocess.check_output(["git", "status", "-s"]).strip():
-            subprocess.run(["git", "add", *paths], check=True)
-            subprocess.run(["git", "commit", "-m", f"Mirror: {version}"], check=True)
-            subprocess.run(["git", "tag", f"v{version}"], check=True)
-        else:
-            print(f"No change v{version}")
-
-
-def get_all_versions() -> list[Version]:
-    response = urllib3.request("GET", "https://pypi.org/pypi/ruff/json")
-    if response.status != 200:
-        raise RuntimeError("Failed to fetch versions from pypi")
-
-    versions = [Version(release) for release in response.json()["releases"]]
-    return sorted(versions)
-
-
-def get_current_version(pyproject: dict) -> Version:
-    requirements = [Requirement(d) for d in pyproject["project"]["dependencies"]]
-    requirement = next((r for r in requirements if r.name == "ruff"), None)
-    assert requirement is not None, "pyproject.toml does not have ruff requirement"
-
-    specifiers = list(requirement.specifier)
-    assert (
-        len(specifiers) == 1 and specifiers[0].operator == "=="
-    ), f"ruff's specifier should be exact matching, but `{requirement}`"
-
-    return Version(specifiers[0].version)
-
-
-def process_version(version: Version) -> typing.Sequence[str]:
-    def replace_pyproject_toml(content: str) -> str:
-        return re.sub(r'"ruff==.*"', f'"ruff=={version}"', content)
-
-    def replace_readme_md(content: str) -> str:
-        content = re.sub(r"rev: v\d+\.\d+\.\d+", f"rev: v{version}", content)
-        content = re.sub(r'rev = "v\d+\.\d+\.\d+"', f'rev = "v{version}"', content)
-        return re.sub(r"/ruff/\d+\.\d+\.\d+\.svg", f"/ruff/{version}.svg", content)
-
-    paths = {
-        "pyproject.toml": replace_pyproject_toml,
-        "README.md": replace_readme_md,
-    }
-
-    for path, replacer in paths.items():
-        with open(path) as f:
-            content = replacer(f.read())
-        with open(path, mode="w") as f:
-            f.write(content)
-
-    return tuple(paths.keys())
-
-
-if __name__ == "__main__":
-    main()
diff --git a/pyproject.toml b/pyproject.toml
index dec469d..98d68ee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,3 +4,34 @@ version = "0.0.0"
 dependencies = [
     "ruff==0.15.20",
 ]
+
+[dependency-groups]
+dev = [
+    "repo-release-tools>=1.10.1",
+]
+
+[tool.rrt]
+release_branch = "main"
+lock_command = []
+
+[tool.rrt.upstream]
+package = "ruff"
+provider = "pypi"
+commit_message = "Mirror: {version}"
+
+[[tool.rrt.version_targets]]
+path = "pyproject.toml"
+kind = "pattern"
+pattern = 'ruff==(\d+\.\d+\.\d+)'
+
+[[tool.rrt.pin_targets]]
+path = "README.md"
+pattern = '(rev: v)(\d+\.\d+\.\d+)()'
+
+[[tool.rrt.pin_targets]]
+path = "README.md"
+pattern = '(rev = "v)(\d+\.\d+\.\d+)(")'
+
+[[tool.rrt.pin_targets]]
+path = "README.md"
+pattern = '(/ruff/)(\d+\.\d+\.\d+)(\.svg)'