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<!-- Thank you for contributing to uv! To help us out with reviewing, please consider the following: - Does this pull request include a summary of the change? (See below.) - Does this pull request include a descriptive title? - Does this pull request include references to any relevant issues? --> ## Summary Handle potential infinite recursion if `uv run` recursively invokes `uv run`. This can happen if the shebang line of a script includes `uv run`, but does not pass `--script`. Handled by adding a new environment variable `UV_RUN_RECURSION_DEPTH`, which contains a counter of the number of times that uv run has been recursively invoked. If unset, it defaults to zero, and each time uv run starts a subprocess we increment the counter, erroring if the value is greater than a configurable (but not currently exposed or documented) threshold. Closes https://github.com/astral-sh/uv/issues/11220. ## Test Plan I've added a snapshot test to `uv/crates/uv/tests/it/run` that tests the end-to-end recursion detection flow. I've currently made it a unix-only test because I'm not sure offhand how uv run will interact with shebang lines on windows. --------- Co-authored-by: Zanie Blue <contact@zanie.dev> |
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