feat(devctr): add checkbuild command to cargo-check specific arch

Add a new checkbuild command to the devtool so that contributors can
run cargo-check against all supported architectures.

There is currently no easy way to check compilation against a different
architectures. This causes unnecessary back and forth in reviews where
the contributor has no easy access to the other architecture.

Signed-off-by: Riccardo Mancini <[email protected]>

Author: Manciukic

tools/devtool

@@ -427,6 +427,9 @@ cmd_help() {
 
     checkstyle
         Run style checks
+
+    checkbuild [--all|-m x86_64|aarch64]
+        Run cargo check on the target architecture (supports cross compilation).
 EOF
 }
 
@@ -959,6 +962,39 @@ cmd_checkstyle() {
     cmd_test --no-build --no-kvm-check -- -n 4 --doctest-modules framework || exit 1
 }
 
+cmd_checkbuild() {
+    TARGET_ARCH=$(uname -m)
+    SUPPORTED_ARCHS=(x86_64 aarch64)
+    while [ $# -gt 0 ]; do
+        case "$1" in
+            "-h"|"--help") { cmd_help; exit 1; } ;;
+            "-m"|"--arch") { TARGET_ARCH=$2; shift; } ;;
+            "--all") {
+                for arch in ${SUPPORTED_ARCHS[*]}; do
+                    say "Running checkbuild -m $arch"
+                    cmd_checkbuild -m $arch || return $?
+                    done
+                }
+                say "Build check passed for ${SUPPORTED_ARCHS[*]}"
+                return 0
+                ;;
+            *)
+                die "Unknown argument: $1. Please use --help for help."
+        ;;
+        esac
+        shift
+    done
+
+    if ! grep -q $TARGET_ARCH <<< "${SUPPORTED_ARCHS[*]}"; then
+        die "Unknown architecture: $TARGET_ARCH. Supported architectures: ${SUPPORTED_ARCHS[*]}"
+    fi
+
+    # Use GNU target to check build as musl has issues with cross-compilation
+    cmd_sh "cargo clippy --target ${TARGET_ARCH}-unknown-linux-gnu --all --all-targets -- -D warnings" \
+        || die "Error running build checks for $TARGET_ARCH"
+    say "Build check passed for $TARGET_ARCH"
+}
+
 # Check if able to run firecracker.
 # ../docs/getting-started.md#prerequisites
 ensure_kvm_rw () {