Jean
23fac5eb39
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The gRPC build script required a system protoc, which a fresh clone and the CI container lack (build failed with 'Could not find protoc'). Set PROTOC from protoc-bin-vendored in build.rs (unless one is already set), so cargo build works out of the box everywhere.
16 lines
775 B
Rust
16 lines
775 B
Rust
fn main() -> Result<(), Box<dyn std::error::Error>> {
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// Use a vendored protoc, so `cargo build` needs no system protobuf compiler
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// (a fresh clone, CI, and the deploy box all build out of the box). Respect
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// an explicit PROTOC if one is already set.
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if std::env::var_os("PROTOC").is_none() {
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std::env::set_var("PROTOC", protoc_bin_vendored::protoc_bin_path()?);
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}
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// Server only: the Rust side never needs to dial itself as a gRPC client.
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// Django (or any other consumer) generates its own stub from proto/echo.proto.
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tonic_build::configure()
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.build_server(true)
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.build_client(false)
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.compile_protos(&["proto/echo.proto"], &["proto"])?;
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println!("cargo:rerun-if-changed=proto/echo.proto");
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Ok(())
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}
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