extern crate glob;
extern crate protoc_rust;
use std::env;
use std::fs;
use std::fs::File;
use std::io::Write;
use std::path::Path;
use protoc_rust::Customize;
fn main() {
let proto_src_files = glob_simple("protos/*.proto");
println!("{:?}", proto_src_files);
let out_dir = env::var("OUT_DIR").expect("No OUT_DIR env variable");
let dest_path = Path::new(&out_dir).join("protos");
fs::create_dir_all(&dest_path).expect("Unable to create proto destination directory");
let mod_file_content = proto_src_files
.iter()
.map(|proto_file| {
let proto_path = Path::new(proto_file);
format!(
"pub mod {};",
proto_path
.file_stem()
.expect("Unable to extract stem")
.to_str()
.expect("Unable to extract filename")
)
})
.collect::<Vec<_>>()
.join("\n");
let mut mod_file = File::create(dest_path.join("mod.rs")).unwrap();
mod_file
.write_all(mod_file_content.as_bytes())
.expect("Unable to write mod file");
protoc_rust::Codegen::new()
.out_dir(&dest_path.to_str().expect("Invalid proto destination path"))
.inputs(
&proto_src_files
.iter()
.map(|a| a.as_ref())
.collect::<Vec<&str>>(),
)
.includes(&["src", "protos"])
.customize(Customize::default())
.run()
.expect("unable to run protoc");
}
fn glob_simple(pattern: &str) -> Vec<String> {
glob::glob(pattern)
.expect("glob")
.map(|g| {
g.expect("item")
.as_path()
.to_str()
.expect("utf-8")
.to_owned()
})
.collect()
}