ci: create ci workflow with new github actions configuration

- add a new github actions file for ci
- define steps for fmt, clippy, test, and build jobs in the ci workflow
- modify the `parley` import in `src/shaper.rs` for better visibility
- update font settings in `src/test.rs` for `monospace xenon var regular` font styling

.github/workflows/ci.yml

@@ -0,0 +1,104 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - ci
+
+jobs:
+  fmt:
+    name: cargo fmt
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest, macos-latest, ubuntu-latest]
+        toolchain: [stable, nightly]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: install stable toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.toolchain }}
+          components: rustfmt
+
+      - name: cargo fmt
+        run: cargo fmt --all --check
+
+  clippy:
+    name: cargo clippy
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest, macos-latest, ubuntu-latest]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: restore cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: install toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.toolchain }}
+          components: clippy
+
+      - name: Show toolchain info
+        run: cargo --version --verbose
+
+      - name: Run Clippy
+        run: cargo clippy --all-targets -- -D warnings
+        continue-on-error: ${{ matrix.toolchain == 'nightly' }}
+
+  event-upload:
+    needs: test
+    name: Upload Test Event
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/upload-artifact@v4
+        with:
+          name: test-event
+          path: ${{ github.event_path }}
+
+  test:
+    name: cargo test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest, macos-latest, ubuntu-latest]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: restore cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: install stable toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.toolchain }}
+
+      - name: cargo test
+        run: cargo test --workspace --locked --all-features
+
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest, macos-latest, ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.toolchain }}
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Build
+        run: cargo build --locked --release

src/shaper.rs

@@ -1,7 +1,7 @@
 use palette::Srgba;
 use parley::{
-    context::RangedBuilder, fontique::Collection, style::StyleProperty,
-    FontContext, Layout, LayoutContext,
+    context::RangedBuilder, fontique::Collection, style::StyleProperty, FontContext, Layout,
+    LayoutContext,
 };
 
 pub struct Shaper {

src/test.rs

@@ -485,14 +485,12 @@ fn font_styles() {
                 fullname: "Monaspace Xenon Var Regular".into(),
                 attributes: Attributes::new(Stretch::NORMAL, Weight::NORMAL, Style::Normal),
                 synthesis: Synthesis {
-                    vars: vec![
-                        crate::Setting {
-                            tag: SLNT,
-                            // FIXME: This should be -11
-                            // See: https://github.com/linebender/parley/issues/94
-                            value: (14.0).into(),
-                        },
-                    ],
+                    vars: vec![crate::Setting {
+                        tag: SLNT,
+                        // FIXME: This should be -11
+                        // See: https://github.com/linebender/parley/issues/94
+                        value: (14.0).into(),
+                    }],
                     embolden: false,
                     skew: 0.0.into(),
                 },
@@ -508,12 +506,10 @@ fn font_styles() {
                 fullname: "Monaspace Xenon Var Regular".into(),
                 attributes: Attributes::new(Stretch::NORMAL, Weight::NORMAL, Style::Normal),
                 synthesis: Synthesis {
-                    vars: vec![
-                        crate::Setting {
-                            tag: SLNT,
-                            value: (-10.0).into(),
-                        },
-                    ],
+                    vars: vec![crate::Setting {
+                        tag: SLNT,
+                        value: (-10.0).into(),
+                    }],
                     embolden: false,
                     skew: 0.0.into(),
                 },
@@ -529,12 +525,10 @@ fn font_styles() {
                 fullname: "Monaspace Xenon Var Regular".into(),
                 attributes: Attributes::new(Stretch::NORMAL, Weight::NORMAL, Style::Normal),
                 synthesis: Synthesis {
-                    vars: vec![
-                        crate::Setting {
-                            tag: SLNT,
-                            value: (-5.0).into(),
-                        },
-                    ],
+                    vars: vec![crate::Setting {
+                        tag: SLNT,
+                        value: (-5.0).into(),
+                    }],
                     embolden: false,
                     skew: 0.0.into(),
                 },