chore: add proto regeneration maintainer workflow

This commit is contained in:
Milind Sharma 2026-02-21 00:54:36 +08:00
parent a46f6edae4
commit 77696727e6
10 changed files with 821 additions and 1 deletions

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.gitmodules vendored Normal file
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[submodule "kicad"]
path = kicad
url = https://gitlab.com/kicad/code/kicad.git

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CONTRIBUTIONS.md Normal file
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# CONTRIBUTIONS
## Scope
This crate uses a two-layer workflow:
1. Upstream source of truth: KiCad proto files in the `kicad` submodule.
2. Published crate input: checked-in generated Rust in `src/proto/generated/`.
Consumers should not need `protoc` or submodules.
## When To Regenerate Protos
Regenerate when:
- KiCad API `.proto` changed upstream.
- You bump the `kicad` submodule commit.
- You need newly added/changed proto messages/enums/services.
Do **not** regenerate when:
- You only change handwritten Rust API/client code.
- You only add docs/tests unrelated to proto schema.
- You only refactor internals without schema updates.
## Maintainer Regen Flow
```bash
git submodule update --init --recursive
./scripts/regenerate-protos.sh
```
This updates:
- `src/proto/generated/*.rs`
- `src/kicad_api_version.rs`
## Commit Prefix Convention
Use this commit prefix when committing generated proto refresh output:
- `chore(proto-gen): ...`
Examples:
- `chore(proto-gen): refresh bindings from KiCad rev-b5121435`
- `chore(proto-gen): regenerate after submodule update`
Use normal conventional commit types for handwritten changes (`feat`, `fix`, `refactor`, `test`, etc.).
## Suggested PR Structure
Prefer splitting into two commits:
1. `chore(proto-gen): ...` (generated output only)
2. Handwritten API/client updates (`feat|fix|refactor|test|docs`)
This keeps review diff clean.
## Pre-PR Checks
Run before opening/updating PR:
```bash
cargo fmt --all --check
cargo test
cargo check --all-features
cargo package
```

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@ -4,6 +4,8 @@
MIT-licensed Rust client library for the KiCad IPC API.
Maintainer workflow: see `CONTRIBUTIONS.md`.
## Status
Alpha. `v0.1.0` release candidate.
@ -18,7 +20,16 @@ Alpha. `v0.1.0` release candidate.
This crate ships checked-in Rust protobuf output under `src/proto/generated/`.
- Consumers do **not** need KiCad source checkout or git submodules.
- Maintainers can regenerate bindings from upstream KiCad proto as needed.
- Maintainers regenerate bindings from KiCad upstream via the `kicad` git submodule.
Maintainer refresh flow:
```bash
git submodule update --init --recursive
./scripts/regenerate-protos.sh
```
The regeneration tool also stamps `KICAD_API_VERSION` from the KiCad submodule git revision.
## Local Testing

1
kicad Submodule

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Subproject commit b512143573edd2f5814ed1dc1a46a37f6c76be19

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scripts/regenerate-protos.sh Executable file
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#!/usr/bin/env bash
set -euo pipefail
repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$repo_root"
git submodule update --init --recursive
cargo run --manifest-path tools/proto-gen/Cargo.toml

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src/kicad_api_version.rs Normal file
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// Generated by tools/proto-gen.
pub const KICAD_API_VERSION: &str = "rev-b5121435";

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@ -10,6 +10,7 @@ pub mod client;
pub mod commands;
pub mod envelope;
pub mod error;
mod kicad_api_version;
pub mod model;
pub mod transport;
@ -20,6 +21,7 @@ pub(crate) mod proto;
pub use crate::client::{ClientBuilder, KiCadClient};
pub use crate::error::KiCadError;
pub use crate::kicad_api_version::KICAD_API_VERSION;
pub use crate::model::board::{
ArcStartMidEndNm, BoardEditorAppearanceSettings, BoardEnabledLayers, BoardFlipMode,
BoardLayerClass, BoardLayerGraphicsDefault, BoardLayerInfo, BoardNet, BoardOriginKind,

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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ecc8ac4bc1dc3381b7f59c34f00b67e18f910c2c0f50015669dde7def656a736"
dependencies = [
"anyhow",
"id-arena",
"indexmap",
"log",
"semver",
"serde",
"serde_derive",
"serde_json",
"unicode-xid",
"wasmparser",
]
[[package]]
name = "zmij"
version = "1.0.21"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"

View File

@ -0,0 +1,8 @@
[package]
name = "proto-gen"
version = "0.1.0"
edition = "2021"
publish = false
[dependencies]
prost-build = "0.14.3"

141
tools/proto-gen/src/main.rs Normal file
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@ -0,0 +1,141 @@
use std::env;
use std::ffi::OsStr;
use std::fs;
use std::io;
use std::path::{Path, PathBuf};
use std::process::Command;
fn collect_proto_files(root: &Path, out: &mut Vec<PathBuf>) -> io::Result<()> {
for entry in fs::read_dir(root)? {
let entry = entry?;
let path = entry.path();
if path.is_dir() {
collect_proto_files(&path, out)?;
continue;
}
if path.extension() == Some(OsStr::new("proto")) {
out.push(path);
}
}
Ok(())
}
fn remove_generated_files(output_dir: &Path) -> io::Result<()> {
if !output_dir.exists() {
return Ok(());
}
for entry in fs::read_dir(output_dir)? {
let entry = entry?;
let path = entry.path();
if !path.is_file() {
continue;
}
let Some(name) = path.file_name().and_then(|n| n.to_str()) else {
continue;
};
if name.starts_with("kiapi.") && name.ends_with(".rs") {
fs::remove_file(path)?;
}
}
Ok(())
}
fn detect_kicad_api_version(submodule_dir: &Path) -> String {
let output = Command::new("git")
.arg("describe")
.arg("--long")
.current_dir(submodule_dir)
.output();
match output {
Ok(out) if out.status.success() => {
String::from_utf8_lossy(&out.stdout).trim().to_owned()
}
_ => {
let fallback = Command::new("git")
.arg("rev-parse")
.arg("--short")
.arg("HEAD")
.current_dir(submodule_dir)
.output();
match fallback {
Ok(out) if out.status.success() => {
format!("rev-{}", String::from_utf8_lossy(&out.stdout).trim())
}
_ => "unknown".to_owned(),
}
}
}
}
fn write_api_version(version_file: &Path, api_version: &str) -> io::Result<()> {
let parent = version_file
.parent()
.ok_or_else(|| io::Error::new(io::ErrorKind::Other, "invalid version file path"))?;
fs::create_dir_all(parent)?;
let escaped = api_version.replace('"', "\\\"");
let body = format!(
"// Generated by tools/proto-gen.\npub const KICAD_API_VERSION: &str = \"{}\";\n",
escaped
);
fs::write(version_file, body)
}
fn main() {
let manifest_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
let repo_root = manifest_dir
.parent()
.and_then(|p| p.parent())
.expect("failed to find repo root")
.to_path_buf();
let proto_root = env::var_os("KICAD_PROTO_ROOT")
.map(PathBuf::from)
.unwrap_or_else(|| repo_root.join("kicad/api/proto"));
if !proto_root.exists() {
panic!(
"KiCad proto root not found at '{}'. Run `git submodule update --init --recursive` or set KICAD_PROTO_ROOT.",
proto_root.display()
);
}
let output_dir = repo_root.join("src/proto/generated");
fs::create_dir_all(&output_dir).expect("failed to create generated output directory");
remove_generated_files(&output_dir).expect("failed to clear stale generated files");
let mut proto_files = Vec::new();
collect_proto_files(&proto_root, &mut proto_files)
.unwrap_or_else(|err| panic!("failed to enumerate proto files: {err}"));
proto_files.sort();
let mut config = prost_build::Config::new();
config.out_dir(&output_dir);
config.protoc_arg("--experimental_allow_proto3_optional");
config
.compile_protos(&proto_files, &[proto_root.clone()])
.expect("failed to compile KiCad protobuf schema");
let kicad_submodule = proto_root
.parent()
.and_then(|p| p.parent())
.expect("failed to locate KiCad submodule root")
.to_path_buf();
let api_version = detect_kicad_api_version(&kicad_submodule);
let version_file = repo_root.join("src/kicad_api_version.rs");
write_api_version(&version_file, &api_version).expect("failed to write API version file");
println!("Generated protobuf bindings into {}", output_dir.display());
println!("Updated API version: {}", api_version);
}