Add CI workflow (#1)

.github/workflows/build.yml

@@ -0,0 +1,16 @@
+name: Build, Lint and Test
+on: [push]
+jobs:
+  Build-Lint-Test:
+    runs-on: [self-hosted]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Format
+        run: |
+          cargo fmt --all -- --check
+      - name: Clippy
+        run: |
+          cargo clippy -- -D warnings
+      - name: Test
+        run: |
+          cargo test --features=fail-on-warnings

Cargo.toml

@@ -9,5 +9,8 @@ repository = "https://github.com/nilssonk/rugged"
 categories = ["network-programming", "command-line-utilities"]
 edition = "2021"
 
+[features]
+fail-on-warnings = []
+
 [dependencies]
 rl2tp = "0.2.0"

src/main.rs

@@ -1,3 +1,5 @@
+#![cfg_attr(feature = "fail-on-warnings", deny(warnings))]
+
 fn main() {
     println!("Hello, world!");
 }