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Version: 2.25 (dev)

buildifier

Buildifier is a tool for formatting BUILD files with a standard convention.

Pants supports running Buildifier on your Pants BUILD files for several reasons:

  • You might like the style that buildifier uses.
  • You might be incrementally adopting Pants from Bazel, and are already using buildifier.

Please note that there are differences from Bazel's BUILD files (which are Starlark) and Pants' BUILD files (which are Python), so buildifier may issue a syntax error. In practice, these errors should be rare. See https://bazel.build/rules/language#differences_with_python.

Backend: pants.backend.build_files.fmt.buildifier

Config section: [buildifier]

Basic options​

args​

--buildifier-args="[<shell_str>, <shell_str>, ...]"
PANTS_BUILDIFIER_ARGS
pants.toml
[buildifier]
args = [
    <shell_str>,
    <shell_str>,
    ...,
]
default: []

Arguments to pass directly to Buildifier, e.g. --buildifier-args='-lint=fix'.

skip​

--[no-]buildifier-skip
PANTS_BUILDIFIER_SKIP
pants.toml
[buildifier]
skip = <bool>
default: False

If true, don't use Buildifier when running pants fmt.

Advanced options​

known_versions​

--buildifier-known-versions="['<str>', '<str>', ...]"
PANTS_BUILDIFIER_KNOWN_VERSIONS
pants.toml
[buildifier]
known_versions = [
    '<str>',
    '<str>',
    ...,
]
default: 
[
  "7.1.2|macos_x86_64|687c49c318fb655970cf716eed3c7bfc9caeea4f2931a2fd36593c458de0c537|7591232",
  "7.1.2|macos_arm64 |d0909b645496608fd6dfc67f95d9d3b01d90736d7b8c8ec41e802cb0b7ceae7c|7528994",
  "7.1.2|linux_x86_64|28285fe7e39ed23dc1a3a525dfcdccbc96c0034ff1d4277905d2672a71b38f13|7702060",
  "7.1.2|linux_arm64 |c22a44eee37b8927167ee6ee67573303f4e31171e7ec3a8ea021a6a660040437|7568336"
]

Known versions to verify downloads against.

Each element is a pipe-separated string of version|platform|sha256|length or version|platform|sha256|length|url_override, where:

  • version is the version string
  • platform is one of [linux_arm64,linux_x86_64,macos_arm64,macos_x86_64]
  • sha256 is the 64-character hex representation of the expected sha256 digest of the download file, as emitted by shasum -a 256
  • length is the expected length of the download file in bytes, as emitted by wc -c
  • (Optional) url_override is a specific url to use instead of the normally generated url for this version

E.g., 3.1.2|macos_x86_64|6d0f18cd84b918c7b3edd0203e75569e0c7caecb1367bbbe409b44e28514f5be|42813. and 3.1.2|macos_arm64 |aca5c1da0192e2fd46b7b55ab290a92c5f07309e7b0ebf4e45ba95731ae98291|50926|https://example.mac.org/bin/v3.1.2/mac-aarch64-v3.1.2.tgz.

Values are space-stripped, so pipes can be indented for readability if necessary.

url_platform_mapping​

--buildifier-url-platform-mapping="{'key1': val1, 'key2': val2, ...}"
PANTS_BUILDIFIER_URL_PLATFORM_MAPPING
pants.toml
[buildifier.url_platform_mapping]
key1 = val1
key2 = val2
...
default: 
{
  "linux_arm64": "linux-arm64",
  "linux_x86_64": "linux-amd64",
  "macos_arm64": "darwin-arm64",
  "macos_x86_64": "darwin-amd64"
}

A dictionary mapping platforms to strings to be used when generating the URL to download the tool.

In --url-template, anytime the {platform} string is used, Pants will determine the current platform, and substitute {platform} with the respective value from your dictionary.

For example, if you define {"macos_x86_64": "apple-darwin", "linux_x86_64": "unknown-linux"}, and run Pants on Linux with an intel architecture, then {platform} will be substituted in the --url-template option with unknown-linux.

url_template​

--buildifier-url-template=<str>
PANTS_BUILDIFIER_URL_TEMPLATE
pants.toml
[buildifier]
url_template = <str>
default: https://github.com/bazelbuild/buildtools/releases/download/v{version}/buildifier-{platform}

URL to download the tool, either as a single binary file or a compressed file (e.g. zip file). You can change this to point to your own hosted file, e.g. to work with proxies or for access via the filesystem through a file:$abspath URL (e.g. file:/this/is/absolute, possibly by templating the buildroot in a config file).

Use {version} to have the value from --version substituted, and {platform} to have a value from --url-platform-mapping substituted in, depending on the current platform. For example, https://github.com/.../protoc-&#123;version&#125;-&#123;platform&#125;.zip.

use_unsupported_version​

--buildifier-use-unsupported-version=<UnsupportedVersionUsage>
PANTS_BUILDIFIER_USE_UNSUPPORTED_VERSION
pants.toml
[buildifier]
use_unsupported_version = <UnsupportedVersionUsage>
one of: error, warning
default: error

What action to take in case the requested version of Buildifier is not supported.

Supported Buildifier versions: unspecified

version​

--buildifier-version=<str>
PANTS_BUILDIFIER_VERSION
pants.toml
[buildifier]
version = <str>
default: 7.1.2

Use this version of Buildifier.

Deprecated options​

None

None