Add format check ci

.github/workflows/main.yml

@@ -7,6 +7,22 @@ on:
       - main
 
 jobs:
+  rustfmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+      - run: rustup component add rustfmt
+      - name: Check formatting
+        run: cargo fmt --all -- --check
   tests:
     runs-on: ubuntu-latest
     steps:

oci_spec/src/lib.rs

@@ -3,7 +3,7 @@ use std::collections::HashMap;
 use std::fs::File;
 use std::path::{Path, PathBuf};
 
-use anyhow::{Context, Result, bail};
+use anyhow::{bail, Context, Result};
 use serde::{Deserialize, Serialize};
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
@@ -616,7 +616,7 @@ impl Spec {
 
     pub fn canonicalize_rootfs(&mut self) -> Result<()> {
         self.root.path = std::fs::canonicalize(&self.root.path)
-        .with_context(|| format!("failed to canonicalize {:?}", self.root.path))?;
+            .with_context(|| format!("failed to canonicalize {:?}", self.root.path))?;
         Ok(())
     }
 }

src/main.rs

@@ -17,7 +17,6 @@ use youki::rootless::should_use_rootless;
 use youki::start;
 use youki::state;
 
-
 /// High-level commandline option definition
 /// This takes global options as well as individual commands as specified in [OCI runtime-spec](https://github.com/opencontainers/runtime-spec/blob/master/runtime.md)
 /// Also check [runc commandline documentation](https://github.com/opencontainers/runc/blob/master/man/runc.8.md) for more explanation