Generate code using a script, not build.rs

Otherwise it's just too rust-analyzer-unfriendly

.gitignore

@@ -1 +1,2 @@
 /target
+/generated

Cargo.lock

@@ -640,7 +640,6 @@ dependencies = [
  "bytes",
  "fixed",
  "nix",
- "protogen",
  "sendfd",
  "serde",
  "serde_derive",

Cargo.toml

@@ -21,6 +21,3 @@ tokio = { version = "1.43.0", features = [ "fs", "net", "rt", "rt-multi-thread",
 toml = "0.8.20"
 tracing = "0.1.41"
 tracing-subscriber = "0.3.19"
-
-[build-dependencies]
-protogen = { version = "0.1.0", path = "protogen" }

build.rs

@@ -1,9 +0,0 @@
-fn main() {
-    let out_dir = std::env::var_os("OUT_DIR").unwrap();
-
-    protogen::generate_from_dir(&out_dir, "proto");
-
-    println!("cargo::rerun-if-changed=build.rs");
-    println!("cargo::rerun-if-changed=proto");
-    println!("cargo::rerun-if-changed=protogen");
-}

generate.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env sh
+
+cargo run -p protogen

protogen/src/main.rs

@@ -1,4 +1,4 @@
-use std::path::Path;
+use std::{env, path::Path};
 
 use quick_xml::events::Event;
 use quote::{format_ident, quote};
@@ -7,6 +7,17 @@ use types::{WlArgType, WlInterface, WlMsg, WlMsgType};
 
 mod types;
 
+pub fn main() {
+    let proto_path = env::current_dir()
+        .expect("current dir undefined")
+        .join("proto");
+    let generated_path = env::current_dir()
+        .expect("current dir undefined")
+        .join("generated");
+    std::fs::create_dir(&generated_path).ok();
+    generate_from_dir(&generated_path, &proto_path);
+}
+
 pub fn generate_from_dir(out_dir: impl AsRef<Path>, p: impl AsRef<Path>) {
     let proto_mods_dir = out_dir.as_ref().join("proto_generated");
     std::fs::remove_dir_all(&proto_mods_dir).ok();
@@ -36,10 +47,8 @@ pub fn generate_from_dir(out_dir: impl AsRef<Path>, p: impl AsRef<Path>) {
             .ok();
     }
 
-    //let file_name_ident: Vec<_> = file_names.iter().map(|name| format_ident!("{name}")).collect();
-
     let main_gen = quote! {
-        #( include!(concat!(env!("OUT_DIR"), "/proto_generated/", #file_names, ".rs")); )*
+        #( include!(concat!("../generated/proto_generated/", #file_names, ".rs")); )*
 
         fn wl_init_parsers(event_parsers: &mut HashMap<(WlObjectType, u16), &'static dyn WlMsgParserFn>, request_parsers: &mut HashMap<(WlObjectType, u16), &'static dyn WlMsgParserFn>) {
             #( #add_parsers_fn(event_parsers, request_parsers); )*

src/proto.rs

@@ -236,5 +236,6 @@ pub fn lookup_known_object_type(name: &str) -> Option<WlObjectType> {
 /// The default object ID of wl_display
 pub const WL_DISPLAY_OBJECT_ID: u32 = 1;
 
-// Include code generated by build.rs
-include!(concat!(env!("OUT_DIR"), "/proto_generated.rs"));
+// Include code generated by protogen
+// Note: to generate this, run generate.sh at the project root.
+include!("../generated/proto_generated.rs");