feat : Add CodeSpaces support

.devcontainer/Dockerfile

@@ -0,0 +1,16 @@
+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.245.2/containers/dotnet/.devcontainer/base.Dockerfile
+
+# [Choice] .NET version: 6.0, 3.1, 6.0-bullseye, 3.1-bullseye, 6.0-focal, 3.1-focal
+ARG VARIANT="6.0-bullseye-slim"
+FROM mcr.microsoft.com/vscode/devcontainers/dotnet:0-${VARIANT}
+
+# [Choice] Node.js version: none, lts/*, 18, 16, 14
+ARG NODE_VERSION="none"
+RUN if [ "${NODE_VERSION}" != "none" ]; then su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi
+
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>
+
+# [Optional] Uncomment this line to install global node packages.
+# RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && npm install -g <your-package-here>" 2>&1

.devcontainer/devcontainer.json

@@ -0,0 +1,44 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.245.2/containers/dotnet
+{
+  "name": "C# (.NET)",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "args": {
+      // Update 'VARIANT' to pick a .NET Core version: 3.1, 6.0
+      // Append -bullseye or -focal to pin to an OS version.
+      "VARIANT": "6.0-bullseye",
+      // Options
+      "NODE_VERSION": "none"
+    }
+  },
+  // Configure tool-specific properties.
+  "customizations": {
+    // Configure properties specific to VS Code.
+    "vscode": {
+      // Add the IDs of extensions you want installed when the container is created.
+      "extensions": [
+        "ms-dotnettools.csharp",
+        "EditorConfig.EditorConfig",
+        "k--kato.docomment"
+      ],
+      "settings": {
+        "omnisharp.enableMsBuildLoadProjectsOnDemand": true,
+        "omnisharp.enableRoslynAnalyzers": true,
+        "omnisharp.enableEditorConfigSupport": true,
+        "omnisharp.enableImportCompletion": true,
+      }
+    }
+  },
+  // Use 'postCreateCommand' to run commands after the container is created.
+  "onCreateCommand": "bash -i ${containerWorkspaceFolder}/.devcontainer/scripts/container-creation.sh",
+  // Add the locally installed dotnet to the path to ensure that it is activated
+  // This is needed so that things like the C# extension can resolve the correct SDK version
+  "remoteEnv": {
+    "PATH": "${containerWorkspaceFolder}/.dotnet:${containerEnv:PATH}",
+    "DOTNET_MULTILEVEL_LOOKUP": "0",
+    "TARGET": "net7.0",
+    "DOTNET_WATCH_SUPPRESS_LAUNCH_BROWSER": "true"
+  },
+  "remoteUser": "vscode"
+}

.devcontainer/scripts/container-creation.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+
+# Install SDK and tool dependencies before container starts
+# Also run the full restore on the repo so that go-to definition
+# and other language features will be available in C# files
+./build.sh
+
+# The container creation script is executed in a new Bash instance
+# so we exit at the end to avoid the creation process lingering.
+exit

.gitignore

@@ -5,7 +5,6 @@
 *.suo
 *.user
 .vs/
-.vscode/
 
 # Build results
 artifacts/

.vscode/tasks.json

@@ -0,0 +1,44 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "Restore projects",
+      "type": "shell",
+      "command": "./restore.sh",
+      "windows": {
+        "command": ".\\restore.cmd"
+      },
+      "group": "build",
+      "presentation": {
+        "reveal": "always",
+        "panel": "new"
+      }
+    },
+    {
+      "label": "Build entire repository",
+      "type": "shell",
+      "command": "./build.sh",
+      "windows": {
+        "command": ".\\build.cmd"
+      },
+      "group": "build",
+      "presentation": {
+        "reveal": "always",
+        "panel": "new"
+      }
+    },
+    {
+      "label": "Run all test projects",
+      "type": "shell",
+      "command": "./test.sh",
+      "windows": {
+        "command": ".\\test.cmd"
+      },
+      "group": "test",
+      "presentation": {
+        "reveal": "always",
+        "panel": "new"
+      }
+    },
+  ]
+}