From b539ffac50c5094c1e9a9063b10bd47a7a2c4d25 Mon Sep 17 00:00:00 2001
From: Dance Chess <dancechess.club@gmail.com>
Date: Sun, 6 Sep 2026 22:38:40 -0700
Subject: [PATCH] Run the tests, the Swift build and the smoke check on every
 pull request
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Until now the only workflow ran on a tag push, so a pull request carried
no checks at all. This runs what a release would run, minus the DMG:
cargo test, the bindings regenerated by build-core.sh, the SwiftPM build,
and StudioSmoke against a real Stockfish — on the same macos-15 runner, so
a green check here means the release build gets through too.

The structural work that follows (per-window databases, native tabs)
touches the write-back path, and it is going in as pull requests
precisely so it can be reviewed and reverted as a unit. A check that
means something is the first half of that.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01F9o9DSzZas4GsekCpG5M8T
---
 .github/workflows/ci.yml | 55 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 .github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..3152355
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,55 @@
+name: CI
+
+# Every pull request and every push to main: the Rust tests, the Swift
+# build against freshly generated bindings, and the end-to-end smoke run
+# with a real Stockfish. Same machine and setup as the release workflow, so
+# a green check here means the release build will get through too.
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  check:
+    runs-on: macos-15
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rust
+        run: |
+          command -v cargo || curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
+            | sh -s -- -y --default-toolchain stable --profile minimal
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+
+      - name: Cache cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            core/target
+          key: cargo-${{ runner.os }}-${{ hashFiles('core/Cargo.lock') }}
+          restore-keys: cargo-${{ runner.os }}-
+
+      # StudioSmoke drives a real engine; the bridge checks run without it
+      - name: Install Stockfish
+        run: brew install stockfish
+
+      - name: Test the core
+        run: cargo test --manifest-path core/Cargo.toml --release
+
+      - name: Build the core and generate bindings
+        run: ./scripts/build-core.sh
+
+      - name: Build the app (SwiftPM, no Xcode)
+        run: swift build --package-path app
+
+      - name: Smoke test (bridge + UCI)
+        run: swift run --package-path app StudioSmoke