Add pnpm in Node (#450)

* Add pnpm in Node

* pnpm from npm

* Restore README.md

* Update install.sh

* Update tests

src/node/devcontainer-feature.json

 {
     "id": "node",
-    "version": "1.1.5",
-    "name": "Node.js (via nvm) and yarn",
+    "version": "1.2.0",
+    "name": "Node.js (via nvm), yarn and pnpm",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/node",
-    "description": "Installs Node.js, nvm, yarn, and needed dependencies.",
+    "description": "Installs Node.js, nvm, yarn, pnpm, and needed dependencies.",
     "options": {
         "version": {
             "type": "string",

src/node/install.sh

@@ -183,6 +183,17 @@ if [ ! -z "${ADDITIONAL_VERSIONS}" ]; then
     IFS=$OLDIFS
 fi
 
+# Install pnpm
+if type pnpm > /dev/null 2>&1; then
+    echo "pnpm already installed."
+else
+    if type npm > /dev/null 2>&1; then
+        npm install -g pnpm
+    else
+        echo "Skip installing pnpm because npm is missing"
+    fi
+fi
+
 # If enabled, verify "python3", "make", "gcc", "g++" commands are available so node-gyp works - https://github.com/nodejs/node-gyp
 if [ "${INSTALL_TOOLS_FOR_NODE_GYP}" = "true" ]; then
     echo "Verifying node-gyp OS requirements..."

test/node/install_additional_node.sh

@@ -7,6 +7,7 @@ source dev-container-features-test-lib
 
 # 'lts' is some version of node 18 for a while.
 check "version_on_path"  node -v | grep 18
+check "pnpm" pnpm -v
 
 check "v18_installed" ls -1 /usr/local/share/nvm/versions/node | grep 18
 check "v14_installed" ls -1 /usr/local/share/nvm/versions/node | grep 14.19.3

test/node/install_node_16_on_bionic.sh

@@ -7,6 +7,7 @@ source dev-container-features-test-lib
 
 # Definition specific tests
 check "version" bash -c "node --version | grep 16"
+check "pnpm" pnpm -v
 check "nvm" bash -c ". /usr/local/share/nvm/nvm.sh && nvm install 10"
 
 # Report result

test/node/install_node_on_universal_image.sh

@@ -6,6 +6,7 @@ set -e
 source dev-container-features-test-lib
 
 check "version_on_path" bash -c "node -v | grep 'v19.1.0'"
+check "pnpm" pnpm -v
 
 # Report result
 reportResults

test/node/non_root_user.sh

@@ -7,6 +7,7 @@ source dev-container-features-test-lib
 
 # Definition specific tests
 check "version" node  --version
+check "pnpm" pnpm -v
 check "nvm" bash -c ". /usr/local/share/nvm/nvm.sh && nvm install 10"
 
 # Report result

test/node/test.sh

@@ -7,6 +7,7 @@ source dev-container-features-test-lib
 
 # Definition specific tests
 check "version" node  --version
+check "pnpm" pnpm -v
 check "nvm" bash -c ". /usr/local/share/nvm/nvm.sh && nvm install 10"
 
 # Report result