Add GitHub CI

.github/workflows/ci.yml

@@ -0,0 +1,45 @@
+name: CI
+
+on:
+	push:
+		branches: [ master ]
+	pull_request:
+		branches: [ master ]
+
+env:
+	CARGO_TERM_COLOR: always
+
+jobs:
+	build:
+
+		runs-on: ${{ matrix.os }}
+		
+		strategy:
+			matrix:
+				os: [ubuntu-latest, windows-latest]
+
+		steps:
+		- uses: actions/checkout@v2
+		- name: Install Rust toolchain
+			uses: actions-rs/toolchain@v1
+			with:
+				toolchain: stable
+
+		- name: Cache cargo directories
+			uses: actions/cache@v2
+			with:
+				path: |
+					~/.cargo/registry
+					~/.cargo/git
+				key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+		- name: Cache cargo target dir
+			uses: actions/cache@v2
+			with:
+				path: target
+				key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
+		- name: Build
+			run: cargo build --release --verbose
+		# there are currently no automated tests
+		- name: Run tests
+			run: cargo test --release --verbose