add basic CI

.github/workflows/ci.yml

@@ -0,0 +1,65 @@
+name: Rust CI
+on:
+  push:
+  pull_request:
+    types: [opened, repoened, synchronize]
+
+jobs:
+  test:
+    name: Test Rust ${{matrix.toolchain}} on ${{matrix.os}}
+    runs-on: ${{matrix.os}}-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        toolchain: [stable, nightly]
+        os: [ubuntu, macOs]
+    steps:
+      - uses: actions/checkout@master
+      - name: Install rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{matrix.toolchain}}
+          override: true
+      - name: Test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --manifest-path ./rust/Cargo.toml
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Install minimal nightly with clippy and rustfmt
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          components: clippy
+          override: true
+
+      - name: Clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: --all --manifest-path ./rust/Cargo.toml -- -D clippy::all -D warnings
+
+  rustfmt:
+    name: rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Install minimal nightly with clipy
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          components: rustfmt
+          override: true
+
+      - name: rustfmt
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all --manifest-path ./rust/Cargo.toml -- --check

rust/Cargo.toml

@@ -0,0 +1,6 @@
+[workspace]
+
+members = [
+    "fastpay",
+    "fastpay_core",
+]