devx: add devcontainer

.devcontainer/Dockerfile

@@ -0,0 +1,18 @@
+FROM mcr.microsoft.com/devcontainers/cpp:1-ubuntu-24.04
+
+ARG REINSTALL_CMAKE_VERSION_FROM_SOURCE="none"
+
+# Optionally install the cmake for vcpkg
+COPY ./reinstall-cmake.sh /tmp/
+
+RUN if [ "${REINSTALL_CMAKE_VERSION_FROM_SOURCE}" != "none" ]; then \
+        chmod +x /tmp/reinstall-cmake.sh && /tmp/reinstall-cmake.sh ${REINSTALL_CMAKE_VERSION_FROM_SOURCE}; \
+    fi \
+    && rm -f /tmp/reinstall-cmake.sh
+
+# [Optional] Uncomment this section to install additional vcpkg ports.
+# RUN su vscode -c "${VCPKG_ROOT}/vcpkg install <your-port-name-here>"
+
+# [Optional] Uncomment this section to install additional packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>

.devcontainer/devcontainer.json

@@ -0,0 +1,35 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/cpp
+{
+	"hostRequirements": {
+		"cpus": 4,
+		"memory": "8gb",
+		"storage": "32gb"
+	},
+	"name": "C++",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+	"features": {
+		"ghcr.io/stuartleeks/dev-container-features/shell-history:0": {},
+		"ghcr.io/sebst/devcontainer-features/pkgx:1": {},
+		"ghcr.io/devcontainers-extra/features/apt-packages:1": {
+			"clean_ppas": true,
+			"preserve_apt_list": true,
+			"packages": "build-essential linux-libc-dev",
+			"ppas": "ppa:deadsnakes/ppa"
+		}
+	},
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "git submodule update --init",
+	// Use 'postAttachCommand' to run commands after the container is attached.
+	"postAttachCommand": "pkgx install npx && npx -y runme run --filename README.md -t devcontainer -y"
+	// Configure tool-specific properties.
+	// "customizations": {},
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.devcontainer/reinstall-cmake.sh

@@ -0,0 +1,59 @@
+#!/usr/bin/env bash
+#-------------------------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.
+#-------------------------------------------------------------------------------------------------------------
+#
+set -e
+
+CMAKE_VERSION=${1:-"none"}
+
+if [ "${CMAKE_VERSION}" = "none" ]; then
+    echo "No CMake version specified, skipping CMake reinstallation"
+    exit 0
+fi
+
+# Cleanup temporary directory and associated files when exiting the script.
+cleanup() {
+    EXIT_CODE=$?
+    set +e
+    if [[ -n "${TMP_DIR}" ]]; then
+        echo "Executing cleanup of tmp files"
+        rm -Rf "${TMP_DIR}"
+    fi
+    exit $EXIT_CODE
+}
+trap cleanup EXIT
+
+
+echo "Installing CMake..."
+apt-get -y purge --auto-remove cmake
+mkdir -p /opt/cmake
+
+architecture=$(dpkg --print-architecture)
+case "${architecture}" in
+    arm64)
+        ARCH=aarch64 ;;
+    amd64)
+        ARCH=x86_64 ;;
+    *)
+        echo "Unsupported architecture ${architecture}."
+        exit 1
+        ;;
+esac
+
+CMAKE_BINARY_NAME="cmake-${CMAKE_VERSION}-linux-${ARCH}.sh"
+CMAKE_CHECKSUM_NAME="cmake-${CMAKE_VERSION}-SHA-256.txt"
+TMP_DIR=$(mktemp -d -t cmake-XXXXXXXXXX)
+
+echo "${TMP_DIR}"
+cd "${TMP_DIR}"
+
+curl -sSL "https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/${CMAKE_BINARY_NAME}" -O
+curl -sSL "https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/${CMAKE_CHECKSUM_NAME}" -O
+
+sha256sum -c --ignore-missing "${CMAKE_CHECKSUM_NAME}"
+sh "${TMP_DIR}/${CMAKE_BINARY_NAME}" --prefix=/opt/cmake --skip-license
+
+ln -s /opt/cmake/bin/cmake /usr/local/bin/cmake
+ln -s /opt/cmake/bin/ctest /usr/local/bin/ctest

README.md

@@ -394,6 +394,47 @@ make -j4
 cortex -h
 ```
 
+#### Devcontainer / Codespaces
+
+1. Open Cortex.cpp repository in Codespaces or local devcontainer
+
+    [![Open in GitHub Codespaces](https://github.com/codespaces/badge.svg)](https://codespaces.new/janhq/cortex.cpp?quickstart=1)
+
+    ```sh
+    devcontainer up --workspace-folder .
+    ```
+
+2. Configure vpkg in `engine/vcpkg`:
+
+```bash {"tag": "devcontainer"}
+cd engine/vcpkg
+export VCPKG_FORCE_SYSTEM_BINARIES="$([[ $(uname -m) == 'arm64' ]] && echo '1' || echo '0')"
+./bootstrap-vcpkg.sh
+```
+
+3. Build the Cortex.cpp inside the `engine/build` folder:
+
+```bash {"tag": "devcontainer"}
+cd engine
+mkdir -p build
+cd build
+cmake .. -DCMAKE_TOOLCHAIN_FILE=$(realpath ..)/vcpkg/scripts/buildsystems/vcpkg.cmake
+make -j$(grep -c ^processor /proc/cpuinfo)
+```
+
+4. Verify that Cortex.cpp is installed correctly by getting help information.
+
+```sh {"tag": "devcontainer"}
+cd engine/build
+./cortex -h
+```
+
+5. Everytime a rebuild is needed, just run the commands above using oneliner
+
+```sh
+npx -y runme run --filename README.md -t devcontainer -y
+```
+
 ## Uninstallation
 
 ### Windows