58 lines
1.5 KiB
Rust
58 lines
1.5 KiB
Rust
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use std::{
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fs::{self, File},
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io::{BufRead, BufReader},
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path::Path,
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};
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pub fn main() {
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let proto_files = [
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"packet_head",
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"server_only",
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"bin.server",
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"redis_data",
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"cmd",
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];
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for proto_file in &proto_files {
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if Path::new(proto_file).exists() {
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println!("cargo:rerun-if-changed={proto_file}.proto");
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prost_build::Config::new()
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.out_dir("out/")
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.type_attribute(".", "#[derive(proto_gen::CmdID)]")
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.compile_protos(&[format!("{proto_file}.proto")], &[proto_file])
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.unwrap();
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}
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}
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implement_cmd_id(Path::new("out/cmd.rs")).unwrap();
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implement_cmd_id(Path::new("out/server_only.rs")).unwrap();
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}
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fn implement_cmd_id(path: &Path) -> std::io::Result<()> {
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let file = File::open(path)?;
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let reader = BufReader::new(file);
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let mut output = Vec::new();
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let mut cmd_id_attr = None;
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for line in reader.lines() {
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let line = line?;
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if line.contains("CmdID: ") {
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cmd_id_attr = Some(make_cmd_id_attr(&line).unwrap());
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} else {
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output.push(line);
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if let Some(attr) = cmd_id_attr.take() {
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output.push(attr);
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}
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}
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}
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fs::write(path, output.join("\n").as_bytes())?;
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Ok(())
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}
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fn make_cmd_id_attr(line: &str) -> Option<String> {
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let cmd_id = line.split("CmdID: ").nth(1)?.parse::<u16>().ok()?;
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Some(format!("#[cmdid({cmd_id})]"))
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}
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