The protocol buffer compiler (https://developers.google.com/protocol-buffers).
Backend: <span style="color: purple"><code>pants.backend.codegen.protobuf.python</code></span> Config section: <span style="color: purple"><code>[protoc]</code></span>
## Basic options
<div style="color: purple"> <h3><code>dependency_inference</code></h3> <code>--[no-]protoc-dependency-inference</code><br> <code>PANTS_PROTOC_DEPENDENCY_INFERENCE</code><br> </div> <div style="padding-left: 2em;"> <span style="color: green">default: <code>True</code></span>
<br>
Infer Protobuf dependencies on other Protobuf files by analyzing import statements.
</div> <br>
## Advanced options
<div style="color: purple"> <h3><code>version</code></h3> <code>--protoc-version=<str></code><br> <code>PANTS_PROTOC_VERSION</code><br> </div> <div style="padding-left: 2em;"> <span style="color: green">default: <code>3.11.4</code></span>
<br>
Use this version of protoc.
</div> <br>
<div style="color: purple"> <h3><code>known_versions</code></h3> <code>--protoc-known-versions="['<str>', '<str>', ...]"</code><br> <code>PANTS_PROTOC_KNOWN_VERSIONS</code><br> </div> <div style="padding-left: 2em;"> <span style="color: green">default: <pre>[ "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" ]</pre></span>
<br>
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 emitted 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.
</div> <br>
<div style="color: purple"> <h3><code>use_unsupported_version</code></h3> <code>--protoc-use-unsupported-version=<UnsupportedVersionUsage></code><br> <code>PANTS_PROTOC_USE_UNSUPPORTED_VERSION</code><br> </div> <div style="padding-left: 2em;"> <span style="color: green">one of: <code>error, warning</code></span><br> <span style="color: green">default: <code>error</code></span>
<br>
What action to take in case the requested version of protoc is not supported.
Supported protoc versions: unspecified
</div> <br>
<div style="color: purple"> <h3><code>url_template</code></h3> <code>--protoc-url-template=<str></code><br> <code>PANTS_PROTOC_URL_TEMPLATE</code><br> </div> <div style="padding-left: 2em;"> <span style="color: green">default: <code>https://github.com/protocolbuffers/protobuf/releases/download/v{version}/protoc-{version}-{platform}.zip</code></span>
<br>
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.
</div> <br>
<div style="color: purple"> <h3><code>url_platform_mapping</code></h3> <code>--protoc-url-platform-mapping="{'key1': val1, 'key2': val2, ...}"</code><br> <code>PANTS_PROTOC_URL_PLATFORM_MAPPING</code><br> </div> <div style="padding-left: 2em;"> <span style="color: green">default: <pre>{ "linux_arm64": "linux-aarch_64", "linux_x86_64": "linux-x86_64", "macos_arm64": "osx-x86_64", "macos_x86_64": "osx-x86_64" }</pre></span>
<br>
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.
</div> <br>
## Deprecated options
None