Add Google Colab code

Notebooks/4_go_encoding.ipynb

@@ -1,5 +1,66 @@
 {
   "cells": [
+    {
+      "cell_type": "markdown",
+      "metadata": {},
+      "source": [
+        "----------\n",
+        "\n",
+        "## Google Colab\n",
+        "\n",
+        "You can run this notebook in Google Colab. The cell below should be run only once, and then followed by a change of runtime to `Go (gonb)`. Refresh the browser before running any subsequent code. If you are not running the notebook in Google Colab, skip this section."
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "vscode": {
+          "languageId": "polyglot-notebook"
+        }
+      },
+      "outputs": [],
+      "source": [
+        "#@title Prepare Google Colab for Go Kernel\n",
+        "\n",
+        "# Install Go and goimports.\n",
+        "!echo -n \"Installing go ...\"\n",
+        "!mkdir -p cache\n",
+        "!wget -q -O cache/go.tar.gz 'https://go.dev/dl/go1.22.2.linux-amd64.tar.gz'\n",
+        "!tar xzf cache/go.tar.gz\n",
+        "%env GOROOT=/content/go\n",
+        "!ln -sf \"/content/go/bin/go\" /usr/bin/go\n",
+        "!echo \" done.\"\n",
+        "!go version\n",
+        "\n",
+        "# Install gonb, goimports, gopls.\n",
+        "!echo -n \"Installing gonb ...\"\n",
+        "!go install github.com/janpfeifer/gonb@latest >& /tmp/output || cat /tmp/output\n",
+        "!echo \" done.\"\n",
+        "!ln -sf /root/go/bin/gonb /usr/bin/gonb\n",
+        "\n",
+        "!echo -n \"Installing goimports ...\"\n",
+        "!go install golang.org/x/tools/cmd/goimports@latest >& /tmp/output || cat /tmp/output\n",
+        "!echo \" done.\"\n",
+        "!ln -sf /root/go/bin/goimports /usr/bin/goimports\n",
+        "\n",
+        "!echo -n \"Installing gopls ...\"\n",
+        "!go install golang.org/x/tools/gopls@latest >& /tmp/output || cat /tmp/output\n",
+        "!echo \" done.\"\n",
+        "!ln -sf /root/go/bin/gopls /usr/bin/gopls\n",
+        "\n",
+        "# Install gonb kernel configuration.\n",
+        "!gonb --install --logtostderr\n",
+        "!echo \"Done!\""
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {},
+      "source": [
+        "----------"
+      ]
+    },
     {
       "cell_type": "markdown",
       "metadata": {
@@ -24,7 +85,10 @@
       "cell_type": "code",
       "execution_count": null,
       "metadata": {
-        "id": "yNU6pAmXRNRx"
+        "id": "yNU6pAmXRNRx",
+        "vscode": {
+          "languageId": "polyglot-notebook"
+        }
       },
       "outputs": [],
       "source": [
@@ -57,7 +121,10 @@
       "cell_type": "code",
       "execution_count": null,
       "metadata": {
-        "id": "6uMstf9XRNRy"
+        "id": "6uMstf9XRNRy",
+        "vscode": {
+          "languageId": "polyglot-notebook"
+        }
       },
       "outputs": [],
       "source": [
@@ -85,7 +152,10 @@
       "cell_type": "code",
       "execution_count": null,
       "metadata": {
-        "id": "F5IkwmzRRNRy"
+        "id": "F5IkwmzRRNRy",
+        "vscode": {
+          "languageId": "polyglot-notebook"
+        }
       },
       "outputs": [],
       "source": [
@@ -111,7 +181,10 @@
       "cell_type": "code",
       "execution_count": null,
       "metadata": {
-        "id": "YfuallDiRNRy"
+        "id": "YfuallDiRNRy",
+        "vscode": {
+          "languageId": "polyglot-notebook"
+        }
       },
       "outputs": [],
       "source": [
@@ -135,7 +208,10 @@
       "cell_type": "code",
       "execution_count": null,
       "metadata": {
-        "id": "d5y1y6cbRNRz"
+        "id": "d5y1y6cbRNRz",
+        "vscode": {
+          "languageId": "polyglot-notebook"
+        }
       },
       "outputs": [],
       "source": [
@@ -157,10 +233,13 @@
     }
   ],
   "metadata": {
+    "colab": {
+      "provenance": []
+    },
     "kernelspec": {
-      "display_name": "base",
-      "language": "python",
-      "name": "python3"
+      "display_name": ".NET (C#)",
+      "language": "C#",
+      "name": ".net-csharp"
     },
     "language_info": {
       "codemirror_mode": {
@@ -174,10 +253,18 @@
       "pygments_lexer": "ipython3",
       "version": "3.11.5"
     },
-    "colab": {
-      "provenance": []
+    "polyglot_notebook": {
+      "kernelInfo": {
+        "defaultKernelName": "csharp",
+        "items": [
+          {
+            "aliases": [],
+            "name": "csharp"
+          }
+        ]
+      }
     }
   },
   "nbformat": 4,
   "nbformat_minor": 0
-}
+}