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py-fuzzer: recommend using uvx rather than uv run to run the fuzzer (#14645)

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Alex Waygood 2024-11-27 22:19:52 +00:00 • committed by GitHub
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2
python/py-fuzzer/README.md
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@ -3,6 +3,6 @@
A fuzzer script to run Ruff executables on randomly generated
(but syntactically valid) Python source-code files.
Run `uv run --no-project --with ./python/py-fuzzer fuzz -h` from the repository root
Run `uvx --from ./python/py-fuzzer fuzz -h` from the repository root
for more information and example invocations
(requires [`uv`](https://github.com/astral-sh/uv) to be installed).

8
python/py-fuzzer/fuzz.py
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@ -4,19 +4,19 @@ Python source-code files.
This script can be installed into a virtual environment using
`uv pip install -e ./python/py-fuzzer` from the Ruff repository root,
or can be run using `uv run --no-project --with ./python/py-fuzzer`
or can be run using `uvx --from ./python/py-fuzzer fuzz`
(in which case the virtual environment does not need to be activated).
Example invocations of the script using `uv`:
- Run the fuzzer on Ruff's parser using seeds 0, 1, 2, 78 and 93 to generate the code:
`uv run --no-project --with ./python/py-fuzzer fuzz --bin ruff 0-2 78 93`
`uvx --from ./python/py-fuzzer fuzz --bin ruff 0-2 78 93`
- Run the fuzzer concurrently using seeds in range 0-10 inclusive,
but only reporting bugs that are new on your branch:
`uv run --no-project --with ./python/py-fuzzer fuzz --bin ruff 0-10 --new-bugs-only`
`uvx --from ./python/py-fuzzer fuzz --bin ruff 0-10 --new-bugs-only`
- Run the fuzzer concurrently on 10,000 different Python source-code files,
using a random selection of seeds, and only print a summary at the end
(the `shuf` command is Unix-specific):
`uv run --no-project --with ./python/py-fuzzer fuzz --bin ruff $(shuf -i 0-1000000 -n 10000) --quiet
`uvx --from ./python/py-fuzzer fuzz --bin ruff $(shuf -i 0-1000000 -n 10000) --quiet
"""
from __future__ import annotations