chore(ci): add fmt and clippy checks

.github/workflows/cont_integration.yml

@@ -46,3 +46,35 @@ jobs:
       - run: cargo check --verbose --no-default-features --features=proxy,use-openssl
       - run: cargo check --verbose --no-default-features --features=proxy,use-rustls
       - run: cargo check --verbose --no-default-features --features=proxy,use-rustls-ring
+
+  fmt:
+    name: Rust fmt
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          profile: minimal
+          components: rustfmt
+      - name: Check fmt
+        run: cargo fmt --all -- --config format_code_in_doc_comments=true --check
+
+  clippy_check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: 1.78.0
+          components: clippy
+          override: true
+      - name: Rust Cache
+        uses: Swatinem/[email protected]
+      - uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all-features --all-targets -- -D warnings

src/socks/v4.rs

@@ -117,10 +117,7 @@ impl Socks4Stream {
         socket.write_all(&packet)?;
         let proxy_addr = read_response(&mut socket)?;
 
-        Ok(Socks4Stream {
-            socket,
-            proxy_addr,
-        })
+        Ok(Socks4Stream { socket, proxy_addr })
     }
 
     /// Returns the proxy-side address of the connection between the proxy and

src/socks/v5.rs

@@ -253,10 +253,7 @@ impl Socks5Stream {
 
         let proxy_addr = read_response(&mut socket)?;
 
-        Ok(Socks5Stream {
-            socket,
-            proxy_addr,
-        })
+        Ok(Socks5Stream { socket, proxy_addr })
     }
 
     fn password_authentication(
@@ -470,10 +467,7 @@ impl Socks5Datagram {
         let socket = UdpSocket::bind(addr)?;
         socket.connect(&stream.proxy_addr)?;
 
-        Ok(Socks5Datagram {
-            socket,
-            stream,
-        })
+        Ok(Socks5Datagram { socket, stream })
     }
 
     /// Like `UdpSocket::send_to`.
@@ -522,11 +516,7 @@ impl Socks5Datagram {
         let addr = read_addr(&mut header)?;
 
         unsafe {
-            ptr::copy(
-                buf.as_ptr(),
-                buf.as_mut_ptr().add(header.len()),
-                overflow,
-            );
+            ptr::copy(buf.as_ptr(), buf.as_mut_ptr().add(header.len()), overflow);
         }
         buf[..header.len()].copy_from_slice(header);