Devcontainer for vminitd development. (#482)

vminitd/.devcontainer/Dockerfile

@@ -0,0 +1,7 @@
+FROM swift:6.2
+
+RUN apt-get update \
+&&  apt-get install make \
+&&  apt-get clean \
+&&  rm -rf /var/lib/apt/lists/*
+RUN swift sdk install https://download.swift.org/swift-6.2.3-release/static-sdk/swift-6.2.3-RELEASE/swift-6.2.3-RELEASE_static-linux-0.0.1.artifactbundle.tar.gz --checksum f30ec724d824ef43b5546e02ca06a8682dafab4b26a99fbb0e858c347e507a2c

vminitd/.devcontainer/devcontainer.json

@@ -0,0 +1,17 @@
+{
+    "build": {
+        "dockerfile": "Dockerfile"
+    },
+    "features": {},
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "swiftlang.swift-vscode"
+            ],
+            "settings": {
+            }
+        }
+    },
+    "runArgs": [],
+    "mounts": []
+}

vminitd/Makefile

@@ -26,9 +26,12 @@ SWIFTLY_FILENAME := $(notdir $(SWIFTLY_URL))
 SWIFTLY_BIN_DIR ?= ~/.swiftly/bin
 BUILD_BIN_DIR := $(shell swift build -c $(BUILD_CONFIGURATION) $(SWIFT_CONFIGURATION) --show-bin-path)
 
+SYSTEM_TYPE := $(shell uname -s)
+ifeq ($(SYSTEM_TYPE),Darwin)
 MACOS_VERSION := $(shell sw_vers -productVersion)
 MACOS_MAJOR := $(shell echo $(MACOS_VERSION) | cut -d. -f1)
 MACOS_RELEASE_TYPE := $(shell sw_vers | grep ReleaseType)
+endif
 
 .DEFAULT_GOAL := all