130 lines
4.0 KiB
Rust
130 lines
4.0 KiB
Rust
use std::path::PathBuf;
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use std::process::{Command, Stdio};
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fn search_file<T: AsRef<str>, P: AsRef<str>>(start: T, name: P) -> Option<PathBuf> {
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let start_path = PathBuf::from(start.as_ref()).canonicalize().ok();
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let mut path = start_path.as_deref();
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while let Some(some_path) = path {
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let file_path = some_path.join(name.as_ref());
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if file_path.exists() {
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return Some(file_path.to_owned());
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}
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path = some_path.parent();
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}
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None
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}
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fn get_desired_capnp_version_string() -> String {
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let capnp_path = search_file(env!("CARGO_MANIFEST_DIR"), ".capnp_version")
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.expect("should find .capnp_version file");
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std::fs::read_to_string(&capnp_path)
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.unwrap_or_else(|_| panic!("can't read .capnp_version file here: {:?}", capnp_path))
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.trim()
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.to_owned()
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}
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fn get_capnp_version_string() -> String {
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let output = Command::new("capnp")
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.arg("--version")
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.stdout(Stdio::piped())
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.output()
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.expect("capnp was not in the PATH");
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let s = String::from_utf8(output.stdout)
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.expect("'capnp --version' output was not a valid string")
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.trim()
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.to_owned();
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if !s.starts_with("Cap'n Proto version ") {
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panic!("invalid capnp version string: {}", s);
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}
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s[20..].to_owned()
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}
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fn get_desired_protoc_version_string() -> String {
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let protoc_path = search_file(env!("CARGO_MANIFEST_DIR"), ".protoc_version")
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.expect("should find .protoc_version file");
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std::fs::read_to_string(&protoc_path)
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.unwrap_or_else(|_| panic!("can't read .protoc_version file here: {:?}", protoc_path))
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.trim()
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.to_owned()
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}
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fn get_protoc_version_string() -> String {
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let output = Command::new("protoc")
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.arg("--version")
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.stdout(Stdio::piped())
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.output()
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.expect("protoc was not in the PATH");
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let s = String::from_utf8(output.stdout)
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.expect("'protoc --version' output was not a valid string")
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.trim()
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.to_owned();
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if !s.starts_with("libprotoc ") {
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panic!("invalid protoc version string: {}", s);
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}
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s[10..].to_owned()
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}
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fn main() {
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let desired_capnp_version_string = get_desired_capnp_version_string();
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let capnp_version_string = get_capnp_version_string();
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let desired_protoc_version_string = get_desired_protoc_version_string();
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let protoc_version_string = get_protoc_version_string();
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// Check capnp version
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let desired_capnp_major_version = desired_capnp_version_string
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.split_once('.')
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.unwrap()
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.0
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.parse::<usize>()
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.expect("should be valid int");
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if capnp_version_string
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.split_once('.')
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.unwrap()
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.0
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.parse::<usize>()
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.expect("should be valid int")
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!= desired_capnp_major_version
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{
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panic!(
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"capnproto version should be major version 1, preferably {} but is {}",
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desired_capnp_version_string, capnp_version_string
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);
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} else if capnp_version_string != desired_capnp_version_string {
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println!(
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"capnproto version may be untested: {}",
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capnp_version_string
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);
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}
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// Check protoc version
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let desired_protoc_major_version = desired_protoc_version_string
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.split_once('.')
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.unwrap()
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.0
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.parse::<usize>()
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.expect("should be valid int");
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if protoc_version_string
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.split_once('.')
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.unwrap()
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.0
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.parse::<usize>()
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.expect("should be valid int")
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< desired_protoc_major_version
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{
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panic!(
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"protoc version should be at least major version {} but is {}",
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desired_protoc_major_version, protoc_version_string
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);
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} else if protoc_version_string != desired_protoc_version_string {
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println!("protoc version may be untested: {}", protoc_version_string);
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}
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::capnpc::CompilerCommand::new()
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.file("proto/veilid.capnp")
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.run()
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.expect("compiling schema");
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}
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