Import Masonry crate

Cargo.toml

@@ -65,7 +65,3 @@ tracing = "0.1.37"
 fnv = "1.0.7"
 instant = { version = "0.1.6", features = ["wasm-bindgen"] }
 winit = { version = "0.29", features = ["rwh_05"] }
-
-[dev-dependencies]
-env_logger = "0.10.0"
-test-log = "0.2.11"

crates/masonry/.cargo/config.toml

@@ -0,0 +1,9 @@
+[target.'cfg(all())']
+# TODO - Replace with Cargo.toml config
+rustflags = [
+    # Global lints/warnings.
+    # We do this here instead of in the crate root because we want to apply
+    # these to example and test targets as well.
+    "-Aclippy::single_match",
+    "-Aclippy::bool_assert_comparison",
+]

crates/masonry/.github/workflows/ci.yml

@@ -0,0 +1,126 @@
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+env:
+  SKIP_RENDER_SNAPSHOTS: 1
+
+jobs:
+  rustfmt:
+    runs-on: ubuntu-latest
+    name: cargo fmt
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: install stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          components: rustfmt
+          override: true
+
+      - name: cargo fmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  test-stable:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macOS-latest, windows-2019, ubuntu-latest]
+    name: cargo clippy+test
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: install libx11-dev
+        run: |
+          sudo apt update
+          sudo apt install libx11-dev libpango1.0-dev libxkbcommon-dev libxkbcommon-x11-dev
+        if: contains(matrix.os, 'ubuntu')
+
+      - name: install stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          components: clippy
+          profile: minimal
+          override: true
+
+      - name: restore cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: cargo clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --all-targets --no-default-features
+
+      # We use --all-targets to skip doc tests; we run them in a parallel task
+      - name: cargo test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all-targets --no-default-features
+
+  doctest-stable:
+    runs-on: macOS-latest
+    name: doctests
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: install stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          override: true
+
+      - name: restore cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: cargo test --doc
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --doc --no-default-features
+
+  # This tests the future rust compiler to catch errors ahead of time without
+  # breaking CI
+  # We only run on a single OS to save time; this might let some errors go
+  # undetected until the compiler updates and they break CI; but that should
+  # happen rarely, and not pose too much of a problem when it does.
+  test-beta:
+    runs-on: macOS-latest
+    name: cargo clippy+check beta
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: install beta toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: beta
+          components: clippy
+          profile: minimal
+          override: true
+
+      - name: restore cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: cargo check
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --no-default-features
+        continue-on-error: true
+
+      - name: cargo clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --all-targets --no-default-features
+        continue-on-error: true