mirror of https://github.com/poanetwork/hbbft.git
36 lines
843 B
Rust
36 lines
843 B
Rust
extern crate protoc_rust;
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use std::env;
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fn protoc_exists() -> bool {
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let name = "PATH";
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match env::var_os(name) {
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Some(paths) => {
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for path in env::split_paths(&paths) {
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if path.join("protoc").exists() {
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return true;
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}
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}
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}
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None => println!("PATH environment variable is not defined."),
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}
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false
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}
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fn main() {
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if !protoc_exists() {
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panic!(
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"
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protoc cannot be found. Install the protobuf compiler in the \
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system path."
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);
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} else {
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println!("cargo:rerun-if-changed=proto/message.proto");
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protoc_rust::run(protoc_rust::Args {
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out_dir: "src/proto",
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input: &["proto/message.proto"],
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includes: &["proto"],
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}).expect("protoc");
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}
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}
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