protoc

dependency_inference

Infer Protobuf dependencies on other Protobuf files by analyzing import statements.

version

Use this version of protoc.

known_versions

[
  "3.11.4|linux_arm64 |f24c9fa1fc4a7770b8a5da66e515cb8a638d086ad2afa633abb97137c5f029a8|1481946",
  "3.11.4|linux_x86_64|6d0f18cd84b918c7b3edd0203e75569e0c8caecb1367bbbe409b45e28514f5be|1591191",
  "3.11.4|macos_arm64 |8c6af11e1058efe953830ecb38324c0e0fd2fb67df3891896d138c535932e7db|2482119",
  "3.11.4|macos_x86_64|8c6af11e1058efe953830ecb38324c0e0fd2fb67df3891896d138c535932e7db|2482119"
]

Known versions to verify downloads against.

Each element is a pipe-separated string of version|platform|sha256|length, 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 emmitted by
  wc -c

E.g., 3.1.2|macos_x86_64|6d0f18cd84b918c7b3edd0203e75569e0c7caecb1367bbbe409b44e28514f5be|42813.

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

use_unsupported_version

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

Supported protoc versions: unspecified

url_template

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-{version}-{platform}.zip.

url_platform_mapping

{
  "linux_arm64": "linux-aarch_64",
  "linux_x86_64": "linux-x86_64",
  "macos_arm64": "osx-x86_64",
  "macos_x86_64": "osx-x86_64"
}

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.