Files
codex/codex-rs/config/scripts/generate-proto.sh
Rasmus Rygaard 0b4f694347 Add remote thread config loader protos (#18892)
## Why

Thread-scoped config needs a stable boundary between the app/session
owner and the config stack. Instead of having call sites manually copy
thread config fields into individual overrides, this adds the proto and
Rust plumbing needed for a `ThreadConfigLoader` implementation to return
typed sources that can be translated into ordinary config layer entries.

Keeping the remote payload typed also makes precedence easier to reason
about: session-owned thread config maps back to the existing session
config source, while user-owned thread config is represented separately
without introducing a new config-layer source until it has TOML-backed
fields.

## What changed

- Added the `codex.thread_config.v1` protobuf service and generated Rust
module for loading thread config sources.
- Added `RemoteThreadConfigLoader`, which calls the gRPC service, parses
`SessionThreadConfig` / `UserThreadConfig`, and validates provider
fields such as `wire_api`, auth timeout, and absolute auth cwd.
- Added proto generation tooling under
`config/scripts/generate-proto.sh` and
`config/examples/generate-proto.rs`.
- Added `ThreadConfigLoader::load_config_layers`, plus static/no-op
loader helpers, so tests and callers can use the same typed loader
interface while config-layer translation stays centralized.

## Verification

- `cargo test -p codex-config thread_config`
2026-04-23 10:06:05 -07:00

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#!/usr/bin/env bash
set -euo pipefail
script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
repo_root="$(cd "$script_dir/../../.." && pwd)"
proto_dir="$repo_root/codex-rs/config/src/thread_config/proto"
generated="$proto_dir/codex.thread_config.v1.rs"
tmpdir="$(mktemp -d)"
cleanup() {
rm -rf "$tmpdir"
}
trap cleanup EXIT
(
cd "$repo_root/codex-rs"
CARGO_TARGET_DIR="$tmpdir/target" cargo run \
-p codex-config \
--example generate-proto \
-- "$proto_dir"
)
if ! sed -n '2p' "$generated" | grep -q 'clippy::trivially_copy_pass_by_ref'; then
{
sed -n '1p' "$generated"
printf '#![allow(clippy::trivially_copy_pass_by_ref)]\n'
sed '1d' "$generated"
} > "$tmpdir/generated.rs"
mv "$tmpdir/generated.rs" "$generated"
fi
rustfmt --edition 2024 "$generated"
awk '
NR == 3 && previous ~ /clippy::trivially_copy_pass_by_ref/ && $0 != "" { print "" }
{ print; previous = $0 }
' "$generated" > "$tmpdir/formatted.rs"
mv "$tmpdir/formatted.rs" "$generated"