33 lines
1.1 KiB
Rust
33 lines
1.1 KiB
Rust
use std::path::Path;
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fn main() {
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let protobuf = Path::new("protobuf").to_owned();
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// Build script does not automagically rerun when a new protobuf file is added.
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// Directories are checked against mtime, which is platform specific
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println!("cargo:rerun-if-changed=protobuf");
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// Adding src/proto.rs means an extra `include!` will trigger a rerun. This is on best-effort
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// basis.
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println!("cargo:rerun-if-changed=src/proto.rs");
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let input: Vec<_> = protobuf
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.read_dir()
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.expect("protobuf directory")
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.filter_map(|entry| {
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let entry = entry.expect("readable protobuf directory");
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let path = entry.path();
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if Some("proto")
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== path.extension().and_then(std::ffi::OsStr::to_str)
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{
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assert!(path.is_file());
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println!("cargo:rerun-if-changed={}", path.to_str().unwrap());
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Some(path)
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} else {
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None
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}
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})
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.collect();
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prost_build::compile_protos(&input, &[protobuf]).unwrap();
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}
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