detect_flake

detect_flake

Run many instances of the same command in parallel to find abnormal behavior or check if a test is flaky.

Installation

See the GitHub Releases for installation scripts and pre-built binaries.

You can also use one of the following package managers.

Install using cargo

cargo install detect_flake

Install using npm

npm install detect_flake

Install using Homebrew

brew install aqrln/homebrew-tap/detect_flake

Install using Nix

nix profile install github:aqrln/detect_flake

(or run it right away without installing with nix run github:aqrln/detect_flake -- <ARGUMENTS>)

Usage

detect_flake [FLAGS] [OPTIONS] --command <command>

Flags:

• -h, --help — Prints help information
• -V, --version — Prints version information
• -i, --inherit-stdio — Inherit stdio instead of redirecting to /dev/null
• -p, --print-failing-output — Print the stdout and stderr of unsuccessful runs only
• -e, --exit-early-on-error — Exit early the first time the command returns a non-zero error code

Options:

• -c, --command <command> — Command to run
• -r, --runs-per-thread <runs-per-thread> — Number of serial runs per each thread [default: 100]
• -t, --threads <threads> — Number of parallel threads [default: 10]

Changelog

Version 0.6.0 (2024-01-23)

Commits: https://github.com/aqrln/detect_flake/compare/v0.5.7...v0.6.0

Added

• Proper parser for command arguments which mimics the POSIX shell. You can now use commands with arguments that contain spaces by wrapping them in quotes:

  detect_flake -c 'echo "hello world"'
  

  Conversely, if you relied on quotes used in the commands verbatim, they may now need to be escaped using backslashes.

• Retroactively added the changelog since the past few versions which will now be maintained for all future releases.