Merge pull request #24 from crawford/ci

test: overhaul CI

.github/workflows/ci.yaml

@@ -0,0 +1,21 @@
+name: CI
+on: [ pull_request ]
+jobs:
+  code-check:
+    name: Code Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Parse MSRV
+        run: sed -n 's/^rust-version = "\(.*\)"$/RUSTUP_TOOLCHAIN=\1/p' Cargo.toml >> $GITHUB_ENV
+      - name: Install Rust Toolchain
+        run: rustup toolchain install $RUSTUP_TOOLCHAIN
+      - name: Install Clippy and Rustfmt
+        run: rustup component add clippy rustfmt
+
+      - name: Check format
+        run: cargo fmt --check
+
+      - name: Clippy check
+        run: cargo clippy --no-deps -- --deny=warnings

Cargo.toml

@@ -8,6 +8,7 @@ readme = "README.md"
 keywords = ["commonmark", "markdown", "links", "validate"]
 license = "Apache-2.0"
 edition = "2018"
+rust-version = "1.70.0"
 
 [dependencies]
 hyper = "^0.10"

src/error.rs

@@ -12,7 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use hyper;
 use std::fmt;
 use std::path::PathBuf;
 use std::sync::Arc;

src/main.rs

@@ -224,7 +224,7 @@ fn check_url(url: &Url) -> Result<(), LinkError> {
 }
 
 fn check_path(
-    root: &PathBuf,
+    root: &Path,
     target: &str,
     file: &Path,
     allow_absolute_paths: bool,