Create test.sh

test.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+set -ex
+[[ -n $1 ]] && image=$1 || image='mcr.microsoft.com/devcontainers/base:debian'
+[[ -n $2 ]] && options=$2 || options='{}'
+feature_dir=$PWD
+temp_dir=$(mktemp -d)
+trap 'rm -rf "$temp_dir"' SIGINT SIGTERM ERR EXIT
+pushd "$temp_dir"
+mkdir -p .devcontainer
+cat <<EOF | tee .devcontainer/devcontainer.json
+{
+  "image": "$image",
+  "features": {
+    "./feature": $options
+  }
+}
+EOF
+rsync -av --exclude .git "$feature_dir/" "$PWD/.devcontainer/feature/"
+tree -a
+container_id=$(devcontainer up --workspace-folder . | jq -r .containerId)
+devcontainer exec --workspace-folder . clang --version
+docker kill "$container_id"