Skip to main content
Version: 2.23 (prerelease)

clang-format

The clang-format utility for formatting C/C++ (and others) code (https://clang.llvm.org/docs/ClangFormat.html). The clang-format binaries are retrieved from PyPi (https://pypi.org/project/clang-format/).

This version of Pants uses clang-format version 15.0.7 by default. Use a dedicated lockfile and the install_from_resolve option to control this.

Backend: pants.backend.experimental.cc.lint.clangformat

Config section: [clang-format]

Basic options​

args​

--clang-format-args="[<shell_str>, <shell_str>, ...]"
PANTS_CLANG_FORMAT_ARGS
pants.toml
[clang-format]
args = [
    <shell_str>,
    <shell_str>,
    ...,
]
default: []

Arguments to pass directly to ClangFormat, e.g. --clang-format-args='--version'.

skip​

--[no-]clang-format-skip
PANTS_CLANG_FORMAT_SKIP
pants.toml
[clang-format]
skip = <bool>
default: False

If true, don't use ClangFormat when running pants fmt and pants lint.

Advanced options​

console_script​

--clang-format-console-script=<str>
PANTS_CLANG_FORMAT_CONSOLE_SCRIPT
pants.toml
[clang-format]
console_script = <str>
default: clang-format

The console script for the tool. Using this option is generally preferable to (and mutually exclusive with) specifying an --entry-point since console script names have a higher expectation of staying stable across releases of the tool. Usually, you will not want to change this from the default.

entry_point​

--clang-format-entry-point=<str>
PANTS_CLANG_FORMAT_ENTRY_POINT
pants.toml
[clang-format]
entry_point = <str>
default: None

The entry point for the tool. Generally you only want to use this option if the tool does not offer a --console-script (which this option is mutually exclusive with). Usually, you will not want to change this from the default.

install_from_resolve​

--clang-format-install-from-resolve=<str>
PANTS_CLANG_FORMAT_INSTALL_FROM_RESOLVE
pants.toml
[clang-format]
install_from_resolve = <str>
default: None

If specified, install the tool using the lockfile for this named resolve.

This resolve must be defined in [python].resolves, as described in https://www.pantsbuild.org/2.23/docs/python/overview/lockfiles#lockfiles-for-tools.

The resolve's entire lockfile will be installed, unless specific requirements are listed via the requirements option, in which case only those requirements will be installed. This is useful if you don't want to invalidate the tool's outputs when the resolve incurs changes to unrelated requirements.

If unspecified, and the lockfile option is unset, the tool will be installed using the default lockfile shipped with Pants, which uses clang-format version 15.0.7.

If unspecified, and the lockfile option is set, the tool will use the custom clang-format "tool lockfile" generated from the version and extra_requirements options. But note that this mechanism is deprecated.

interpreter_constraints​

--clang-format-interpreter-constraints="['<str>', '<str>', ...]"
PANTS_CLANG_FORMAT_INTERPRETER_CONSTRAINTS
pants.toml
[clang-format]
interpreter_constraints = [
    '<str>',
    '<str>',
    ...,
]
default: 
[
  "CPython>=3.7,<4"
]

Python interpreter constraints for this tool.

requirements​

--clang-format-requirements="['<str>', '<str>', ...]"
PANTS_CLANG_FORMAT_REQUIREMENTS
pants.toml
[clang-format]
requirements = [
    '<str>',
    '<str>',
    ...,
]
default: []

If install_from_resolve is specified, install these requirements, at the versions provided by the specified resolve's lockfile.

Values can be pip-style requirements (e.g., tool or tool==1.2.3 or tool>=1.2.3), or addresses of python_requirement targets (or targets that generate or depend on python_requirement targets). Make sure to use the // prefix to refer to targets using their full address from the root (e.g. //3rdparty/python:tool). This is necessary to distinguish address specs from local or VCS requirements.

The lockfile will be validated against the requirements - if a lockfile doesn't provide the requirement (at a suitable version, if the requirement specifies version constraints) Pants will error.

If unspecified, install the entire lockfile.

Deprecated options​

None

None