build: add CI for pull requests

.github/workflows/ares-feature.yml

@@ -0,0 +1,14 @@
+name: 'Ares: Pull request'
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/ares-feature.yml'
+      - '.github/workflows/ares-shared.yml'
+      - 'rust/ares/**'
+      - 'rust/ares_macros/**'
+      - 'rust/ibig-rs/**'
+
+jobs:
+  urbit:
+    uses: ./.github/workflows/ares-shared.yml

.github/workflows/ares-shared.yml

@@ -0,0 +1,27 @@
+on:
+  workflow_call:
+
+env:
+  CARGO_TERM_COLOR: always
+
+defaults:
+  run:
+    working-directory: rust/ares
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ 'ubuntu-latest', 'macos-latest' ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Format
+        run: cargo fmt --check
+
+      - name: Build
+        run: cargo build --verbose
+
+      - name: Run tests
+        run: cargo test --verbose

.github/workflows/ares-status.yml

@@ -0,0 +1,16 @@
+name: 'Ares: Push to status'
+
+on:
+  push:
+    branches:
+      - status
+    paths:
+      - '.github/workflows/ares-shared.yml'
+      - '.github/workflows/ares-status.yml'
+      - 'rust/ares/**'
+      - 'rust/ares_macros/**'
+      - 'rust/ibig-rs/**'
+
+jobs:
+  urbit:
+    uses: ./.github/workflows/ares-shared.yml

.github/workflows/ares.yml

@@ -1,28 +0,0 @@
-name: Ares
-
-on:
-  push:
-    branches: [ "status" ]
-  pull_request:
-    branches: [ "status" ]
-
-env:
-  CARGO_TERM_COLOR: always
-
-defaults:
-  run:
-    working-directory: rust/ares
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Format
-      run: cargo fmt --check
-    - name: Build
-      run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose