Unix metadata

The rules that read the +x bit (executable_bit, executable_has_shebang, shebang_has_executable) are no-ops on Windows, which has no executable bit, so the same config runs unchanged on every platform. no_symlinks and file_shebang check every platform.

Rule kinds in the Unix metadata family. Each rule below links to its own page with options, an example, and any auto-fix support.

Rule	Description
file_shebang	First line of each file in scope must match the shebang regex.
no_symlinks	Flag tracked paths that are symbolic links.
executable_bit	Assert every file in scope either has the +x bit set (require: true) or does not (require: false).
executable_has_shebang	Every file with +x set must begin with #!.
shebang_has_executable	Every file starting with #! must have +x set.