Vendor protoc so the build needs no system protobuf compiler
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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.
This commit is contained in:
Jean Chevronnet 2026-07-15 00:11:26 +00:00
parent 2994cbbfea
commit 23fac5eb39
No known key found for this signature in database
3 changed files with 72 additions and 0 deletions

65
Cargo.lock generated
View file

@ -316,6 +316,7 @@ dependencies = [
"hmac",
"pbkdf2",
"prost",
"protoc-bin-vendored",
"regex",
"rustls-pemfile",
"serde",
@ -1007,6 +1008,70 @@ dependencies = [
"prost",
]
[[package]]
name = "protoc-bin-vendored"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d1c381df33c98266b5f08186583660090a4ffa0889e76c7e9a5e175f645a67fa"
dependencies = [
"protoc-bin-vendored-linux-aarch_64",
"protoc-bin-vendored-linux-ppcle_64",
"protoc-bin-vendored-linux-s390_64",
"protoc-bin-vendored-linux-x86_32",
"protoc-bin-vendored-linux-x86_64",
"protoc-bin-vendored-macos-aarch_64",
"protoc-bin-vendored-macos-x86_64",
"protoc-bin-vendored-win32",
]
[[package]]
name = "protoc-bin-vendored-linux-aarch_64"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c350df4d49b5b9e3ca79f7e646fde2377b199e13cfa87320308397e1f37e1a4c"
[[package]]
name = "protoc-bin-vendored-linux-ppcle_64"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a55a63e6c7244f19b5c6393f025017eb5d793fd5467823a099740a7a4222440c"
[[package]]
name = "protoc-bin-vendored-linux-s390_64"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1dba5565db4288e935d5330a07c264a4ee8e4a5b4a4e6f4e83fad824cc32f3b0"
[[package]]
name = "protoc-bin-vendored-linux-x86_32"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8854774b24ee28b7868cd71dccaae8e02a2365e67a4a87a6cd11ee6cdbdf9cf5"
[[package]]
name = "protoc-bin-vendored-linux-x86_64"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b38b07546580df720fa464ce124c4b03630a6fb83e05c336fea2a241df7e5d78"
[[package]]
name = "protoc-bin-vendored-macos-aarch_64"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "89278a9926ce312e51f1d999fee8825d324d603213344a9a706daa009f1d8092"
[[package]]
name = "protoc-bin-vendored-macos-x86_64"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "81745feda7ccfb9471d7a4de888f0652e806d5795b61480605d4943176299756"
[[package]]
name = "protoc-bin-vendored-win32"
version = "3.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "95067976aca6421a523e491fce939a3e65249bac4b977adee0ee9771568e8aa3"
[[package]]
name = "quote"
version = "1.0.46"

View file

@ -67,3 +67,4 @@ tokio-stream = "0.1"
[build-dependencies]
tonic-build = "0.12"
protoc-bin-vendored = "3"

View file

@ -1,4 +1,10 @@
fn main() -> Result<(), Box<dyn std::error::Error>> {
// Use a vendored protoc, so `cargo build` needs no system protobuf compiler
// (a fresh clone, CI, and the deploy box all build out of the box). Respect
// an explicit PROTOC if one is already set.
if std::env::var_os("PROTOC").is_none() {
std::env::set_var("PROTOC", protoc_bin_vendored::protoc_bin_path()?);
}
// Server only: the Rust side never needs to dial itself as a gRPC client.
// Django (or any other consumer) generates its own stub from proto/echo.proto.
tonic_build::configure()