[feat] Add webi feature

src/webi-packages/README.md

@@ -0,0 +1,18 @@
+
+# webi packages (webi-packages)
+
+Install webi and use it to install specified packages
+
+## Example Usage
+
+```json
+"features": {
+    "ghcr.io/devcontainers-extra/features/webi-packages:1": {}
+}
+```
+
+## Options
+
+| Options Id | Description | Type | Default Value |
+|-----|-----|-----|-----|
+| packages | List of packages to install, comma-separated (e.g., 'node@lts', 'deno'). | string | - |

src/webi-packages/devcontainer-feature.json

@@ -0,0 +1,17 @@
+{
+    "id": "webi-packages",
+    "version": "1.0.0",
+    "name": "webi packages",
+    "documentationURL": "http://github.com/devcontainers-extra/features/tree/main/src/webi-packages",
+    "description": "Install webi and use it to install specified packages",
+    "options": {
+        "packages": {
+            "type": "string",
+            "description": "List of packages to install, comma-separated (e.g., 'node@lts', 'deno')",
+            "default": ""
+        }
+    },
+    "installsAfter": [
+        "ghcr.io/devcontainers/features/common-utils"
+    ]
+}

src/webi-packages/install.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+set -e
+
+USERNAME="${USERNAME:-"${_REMOTE_USER:-"automatic"}"}"
+PACKAGES="${PACKAGES:-""}"
+
+if [ "$(id -u)" -ne 0 ]; then
+    echo "Script must be run as root. Use sudo, su, or add \"USER root\" to your Dockerfile before running this script."
+    exit 1
+fi
+
+. ./utils.sh
+
+install_webi "$(determine_user "$USERNAME")" "$PACKAGES"
+
+clean

src/webi-packages/utils.sh

@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+
+install_webi() {
+  local USERNAME="$1"
+  local PACKAGES="$2"
+
+  check_command curl
+
+  su - "${USERNAME}" <<EOF
+    if ! command -v webi &>/dev/null; then
+        echo "Installing webinstall.dev for user ${USERNAME}..."
+        curl -sS https://webi.sh/webi | sh
+        source ~/.config/envman/PATH.env
+        echo "Webinstall.dev installation completed for user ${USERNAME}"
+    fi
+
+    if [ -n "$PACKAGES" ]; then
+      echo "Installing specified packages: ${PACKAGES}"
+      webi $(echo "$PACKAGES" | tr ',' ' ')
+    fi
+EOF
+}
+
+determine_user() {
+  local USERNAME="${1:-"auto"}"
+  if [ "${USERNAME}" = "auto" ] || [ "${USERNAME}" = "automatic" ]; then
+    USERNAME=""
+    check_command awk >/dev/null 2>&1
+    USERNAME_UID_1000="$(awk -v val=1000 -F ":" '$3==val{print $1}' /etc/passwd)"
+    POSSIBLE_USERS=("vscode" "node" "codespace" "${USERNAME_UID_1000}")
+    for CURRENT_USER in "${POSSIBLE_USERS[@]}"; do
+      if id -u "${CURRENT_USER}" >/dev/null 2>&1; then
+        USERNAME=${CURRENT_USER}
+        break
+      fi
+    done
+    if [ "${USERNAME}" = "" ]; then
+      USERNAME=root
+    fi
+  elif [ "${USERNAME}" = "none" ] || ! id -u "${USERNAME}" >/dev/null 2>&1; then
+    USERNAME=root
+  fi
+
+  echo "${USERNAME}"
+}
+
+check_command() {
+  local cmd=$1
+
+  if command -v "$cmd" &>/dev/null; then
+    echo "$cmd is already installed"
+    return 0
+  fi
+
+  echo "$cmd not found, attempting to install..."
+
+  if command -v apt &>/dev/null; then
+    echo "Installing using apt..."
+    apt update
+    apt -y install --no-install-recommends "$cmd"
+    return $?
+  fi
+
+  if command -v apk &>/dev/null; then
+    echo "Installing using apk..."
+    apk update
+    apk add --no-cache "$cmd"
+    return $?
+  fi
+
+  echo "Error: No supported package manager found (apt/apk)"
+  return 1
+}
+
+clean() {
+  if command -v apt &>/dev/null; then
+    apt clean
+    rm -rf /var/lib/apt/lists/*
+  fi
+}

test/webi-packages/scenarios.json

@@ -0,0 +1,18 @@
+{
+    "test": {
+        "image": "mcr.microsoft.com/devcontainers/base:debian",
+        "features": {
+            "webi-packages": {
+                "packages": "node@18,deno"
+            }
+        }
+    },
+    "test_alpine": {
+        "image": "mcr.microsoft.com/devcontainers/base:alpine",
+        "features": {
+            "webi-packages": {
+                "packages": "node@18"
+            }
+        }
+    }
+}

test/webi-packages/test.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+set -e
+
+source dev-container-features-test-lib
+
+check "node version is equal to 18.*.*" sh -c "node --version | grep '18.*.*'"
+
+check "deno --version" deno --version
+
+reportResults

test/webi-packages/test_alpine.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+set -e
+
+source dev-container-features-test-lib
+
+source ~/.config/envman/PATH.env
+
+check "node version is equal to 18.*.*" sh -c "node --version | grep '18.*.*'"
+
+reportResults