This repo contains bazel rules for buildifier and buildozer using prebuilt binaries with bazel toolchains instead of requiring you depend on rules_go. This also means you won‘t download every possible version of these binaries, you’ll only download the ones for the platform you're running on.
You can create a rule for running buildifier:
load("@buildifier_prebuilt//:rules.bzl", "buildifier") buildifier( name = "buildifier.check", exclude_patterns = [ "./.git/*", ], lint_mode = "warn", mode = "diff", )
That can be run with:
bazel run //:buildifier.check
Or you can run buildifier or buildozer directly:
bazel run -- @buildifier_prebuilt//:buildozer ARGS bazel run -- @buildifier_prebuilt//:buildifier ARGS
Check the releases page for the latest snippet.
By default these rules use the buildifier and buildozer versions that match the release version on this repo. If you want to use a custom version, you can use one of the options below.
To add SHA256 values to the declaration, add a sha256_values attribute and specify the values in a dict where the key is <tool>_<platform>_<arch> and the value is the SHA256 value.
# Use buildtools version 4.2.5. # Bzlmod buildifier_prebuilt = use_extension("//:defs.bzl", "buildifier_prebuilt_deps_extension") buildifier_prebuilt.toolchains( sha256_values = { "buildifier_darwin_amd64": "757f246040aceb2c9550d02ef5d1f22d3ef1ff53405fe76ef4c6239ef1ea2cc1", "buildifier_darwin_arm64": "4cf02e051f6cda18765935cb6e77cc938cf8b405064589a50fe9582f82c7edaf", "buildifier_linux_amd64": "f94e71b22925aff76ce01a49e1c6c6d31f521bbbccff047b81f2ea01fd01a945", "buildifier_linux_arm64": "2113d79e45efb51e2b3013c8737cb66cadae3fd89bd7e820438cb06201e50874", "buildozer_darwin_amd64": "3fe671620e6cb7d2386f9da09c1de8de88b02b9dd9275cdecd8b9e417f74df1b", "buildozer_darwin_arm64": "ff4d297023fe3e0fd14113c78f04cef55289ca5bfe5e45a916be738b948dc743", "buildozer_linux_amd64": "e8e39b71c52318a9030dd9fcb9bbfd968d0e03e59268c60b489e6e6fc1595d7b", "buildozer_linux_arm64": "96227142969540def1d23a9e8225524173390d23f3d7fd56ce9c4436953f02fc", }, version = "4.2.5", ) use_repo( buildifier_prebuilt, "buildifier_prebuilt_toolchains", ) # Workspace buildifier_prebuilt_register_toolchains( assets = buildtools_assets(version = "4.2.5"), sha256_values = { "buildifier_darwin_amd64": "757f246040aceb2c9550d02ef5d1f22d3ef1ff53405fe76ef4c6239ef1ea2cc1", "buildifier_darwin_arm64": "4cf02e051f6cda18765935cb6e77cc938cf8b405064589a50fe9582f82c7edaf", "buildifier_linux_amd64": "f94e71b22925aff76ce01a49e1c6c6d31f521bbbccff047b81f2ea01fd01a945", "buildifier_linux_arm64": "2113d79e45efb51e2b3013c8737cb66cadae3fd89bd7e820438cb06201e50874", "buildozer_darwin_amd64": "3fe671620e6cb7d2386f9da09c1de8de88b02b9dd9275cdecd8b9e417f74df1b", "buildozer_darwin_arm64": "ff4d297023fe3e0fd14113c78f04cef55289ca5bfe5e45a916be738b948dc743", "buildozer_linux_amd64": "e8e39b71c52318a9030dd9fcb9bbfd968d0e03e59268c60b489e6e6fc1595d7b", "buildozer_linux_arm64": "96227142969540def1d23a9e8225524173390d23f3d7fd56ce9c4436953f02fc", }, )
The downside to this is that you will need to manually download each binary that you will use in your builds and calculate the SHA256 value.
We have included a utility which will generate a buildifier_prebuilt_register_toolchains declaration with the appropriate SHA256 values. If you execute it without any arguments, it will use the latest release of buildtools. Just copy and paste the declaration into your WORKSPACE file.
# Generate the declaration for the latest $ bazel run //tools:generate_assets_declaration load("@buildifier_prebuilt//:defs.bzl", "buildifier_prebuilt_register_toolchains", "buildtools_assets") buildifier_prebuilt_register_toolchains( assets = buildtools_assets( version = "4.2.5", names = ["buildifier", "buildozer"], platforms = ["darwin", "linux"], arches = ["amd64", "arm64"], sha256_values = { "buildifier_darwin_amd64": "757f246040aceb2c9550d02ef5d1f22d3ef1ff53405fe76ef4c6239ef1ea2cc1", "buildifier_darwin_arm64": "4cf02e051f6cda18765935cb6e77cc938cf8b405064589a50fe9582f82c7edaf", "buildifier_linux_amd64": "f94e71b22925aff76ce01a49e1c6c6d31f521bbbccff047b81f2ea01fd01a945", "buildifier_linux_arm64": "2113d79e45efb51e2b3013c8737cb66cadae3fd89bd7e820438cb06201e50874", "buildozer_darwin_amd64": "3fe671620e6cb7d2386f9da09c1de8de88b02b9dd9275cdecd8b9e417f74df1b", "buildozer_darwin_arm64": "ff4d297023fe3e0fd14113c78f04cef55289ca5bfe5e45a916be738b948dc743", "buildozer_linux_amd64": "e8e39b71c52318a9030dd9fcb9bbfd968d0e03e59268c60b489e6e6fc1595d7b", "buildozer_linux_arm64": "96227142969540def1d23a9e8225524173390d23f3d7fd56ce9c4436953f02fc", }, ), )
You may also specify a specific version of buildtools by adding it to the end of the command.
# Generate the declaration for version 4.2.3 $ bazel run //tools:generate_assets_declaration -- 4.2.3 load("@buildifier_prebuilt//:defs.bzl", "buildifier_prebuilt_register_toolchains", "buildtools_assets") buildifier_prebuilt_register_toolchains( assets = buildtools_assets( version = "4.2.3", names = ["buildifier", "buildozer"], platforms = ["darwin", "linux"], arches = ["amd64", "arm64"], sha256_values = { "buildifier_darwin_amd64": "954ec397089344b1564e45dc095e9331e121eb0f20e72032fcc8e94de78e5663", "buildifier_darwin_arm64": "9434043897a3c3821fda87046918e5a6c4320d8352df700f62046744c4d168a3", "buildifier_linux_amd64": "a19126536bae9a3917a7fc4bdbbf0378371a1d1683ab2415857cf53bce9dee49", "buildifier_linux_arm64": "39bd9d01d3638902a1e4cef353048ed160f0575f5df1bef175bd7637386d183c", "buildozer_darwin_amd64": "edcabae1d97bdc42559d7d1d65dfe7f8970db8d95d4bc9e7bf6656a9f2fb5592", "buildozer_darwin_arm64": "f8d0994620dec1247328f13db1d434b6489dd007f8e9b961dbd9363bc6fe7071", "buildozer_linux_amd64": "6b4177321b770fb788b618caa453d34561b8c05081ae8b27657e527c2a3b5d52", "buildozer_linux_arm64": "edfa964b283352ffd7503faca503de8f06dfcd1c7c96a6737e9452167e93c687", }, ), )