Remove uv version requirements in third-party tests

.github/workflows/third_party.yml

@@ -12,6 +12,7 @@ on:
   pull_request:
     paths:
       - ".github/workflows/third_party.yml"
+      - "scripts/remove_uv_version_requirement.py"
   workflow_dispatch:
 
 permissions:
@@ -65,6 +66,8 @@ jobs:
         with:
           path: typing-extensions-latest
           persist-credentials: false
+      - name: Remove uv version requirement
+        run: uv run --no-project --python '>=3.11' typing-extensions-latest/scripts/remove_uv_version_requirement.py pydantic
       - name: Run tests with typing_extensions main branch
         working-directory: pydantic
         run: |
@@ -101,6 +104,8 @@ jobs:
         with:
           path: typing-extensions-latest
           persist-credentials: false
+      - name: Remove uv version requirement
+        run: uv run --no-project --python '>=3.11' typing-extensions-latest/scripts/remove_uv_version_requirement.py typing_inspect
       - name: Run tests with typing_extensions main branch
         working-directory: typing_inspect
         run: |
@@ -139,6 +144,8 @@ jobs:
         with:
           path: typing-extensions-latest
           persist-credentials: false
+      - name: Remove uv version requirement
+        run: uv run --no-project --python '>=3.11' typing-extensions-latest/scripts/remove_uv_version_requirement.py pycroscope
       - name: Run tests with typing_extensions main branch
         working-directory: pycroscope
         run: |
@@ -177,6 +184,8 @@ jobs:
         with:
           path: typing-extensions-latest
           persist-credentials: false
+      - name: Remove uv version requirement
+        run: uv run --no-project --python '>=3.11' typing-extensions-latest/scripts/remove_uv_version_requirement.py typeguard
       - name: Run tests with typing_extensions main branch
         env:
           PYTHON_COLORS: 0  # A test fails if tracebacks are colorized
@@ -218,6 +227,8 @@ jobs:
         with:
           path: typing-extensions-latest
           persist-credentials: false
+      - name: Remove uv version requirement
+        run: uv run --no-project --python '>=3.11' typing-extensions-latest/scripts/remove_uv_version_requirement.py typed-argument-parser
       - name: Configure git for typed-argument-parser tests
         # typed-argument parser does this in their CI,
         # and the tests fail unless we do this
@@ -264,6 +275,8 @@ jobs:
         with:
           path: typing-extensions-latest
           persist-credentials: false
+      - name: Remove uv version requirement
+        run: uv run --no-project --python '>=3.11' typing-extensions-latest/scripts/remove_uv_version_requirement.py mypy
       - name: Run tests with typing_extensions main branch
         working-directory: mypy
         run: |
@@ -303,6 +316,8 @@ jobs:
         with:
           path: typing-extensions-latest
           persist-credentials: false
+      - name: Remove uv version requirement
+        run: uv run --no-project --python '>=3.11' typing-extensions-latest/scripts/remove_uv_version_requirement.py cattrs
       - name: Run tests with typing_extensions main branch
         working-directory: cattrs
         run: |
@@ -344,6 +359,8 @@ jobs:
         with:
           path: typing-extensions-latest
           persist-credentials: false
+      - name: Remove uv version requirement
+        run: uv run --no-project --python '>=3.11' typing-extensions-latest/scripts/remove_uv_version_requirement.py sqlalchemy
       - name: Run sqlalchemy tests with typing_extensions main branch
         working-directory: sqlalchemy
         run: |
@@ -379,6 +396,8 @@ jobs:
         with:
           path: typing-extensions-latest
           persist-credentials: false
+      - name: Remove uv version requirement
+        run: uv run --no-project --python '>=3.11' typing-extensions-latest/scripts/remove_uv_version_requirement.py litestar
       - name: Run litestar tests with typing_extensions main branch
         working-directory: litestar
         run: |

scripts/remove_uv_version_requirement.py

@@ -0,0 +1,68 @@
+"""Remove uv's required-version from a third-party checkout.
+
+CI pins uv, which may not satisfy a checkout's uv version requirement.
+Preserve the checkout's other uv settings in pyproject.toml and uv.toml.
+Fail if a requirement cannot be removed safely as a single-line assignment.
+
+Using tomlkit would make this simpler and support more TOML layouts, but we
+would need to declare the dependency in a PEP 723 script. We would then
+want a uv-pre-commit hook to check in CI that the script's lockfile is up to
+date, and Renovate configuration to update the hook alongside CI's uv pin
+so the hook uses the same uv version as CI. We therefore keep this script
+stdlib-only for now, to avoid that spiralling complexity. This can be
+reconsidered if we ever need a more general solution in the future.
+"""
+
+import argparse
+import tomllib
+from pathlib import Path
+
+parser = argparse.ArgumentParser()
+parser.add_argument("repo_dir", type=Path)
+repo_dir = parser.parse_args().repo_dir
+if not repo_dir.is_dir():
+    parser.error(f"{repo_dir} is not a directory")
+
+# Collect each updated file's path and contents so neither file is changed if
+# a requirement in either file cannot be removed safely.
+config_updates: dict[Path, str] = {}
+
+for config_filename in ("pyproject.toml", "uv.toml"):
+    config_path = repo_dir / config_filename
+    try:
+        raw_config = config_path.read_bytes().decode("utf-8")
+    except FileNotFoundError:
+        continue
+
+    parsed_config = tomllib.loads(raw_config)
+    uv_config = (
+        parsed_config.get("tool", {}).get("uv", {})
+        if config_filename == "pyproject.toml"
+        else parsed_config
+    )
+    if "required-version" in uv_config:
+        del uv_config["required-version"]
+        raw_config_lines = raw_config.splitlines(keepends=True)
+        for index, config_line in enumerate(raw_config_lines):
+            if "=" not in config_line:
+                continue
+            try:
+                key = tomllib.loads(f"{config_line.partition('=')[0]} = true")
+                if key != {"required-version": True}:
+                    continue
+                updated_config = "".join(
+                    raw_config_lines[:index] + raw_config_lines[index + 1 :]
+                )
+                if tomllib.loads(updated_config) == parsed_config:
+                    config_updates[config_path] = updated_config
+                    break
+            except tomllib.TOMLDecodeError:
+                continue
+        else:
+            raise SystemExit(
+                f"cannot safely remove required-version from {config_path}; "
+                "expected a single-line required-version assignment"
+            )
+
+for config_path, updated_raw_config in config_updates.items():
+    config_path.write_bytes(updated_raw_config.encode("utf-8"))