Ensure remove apt-update cache at the beginning and end of the scripts (#210)

* remove apt lists

* bump versions

2 files changed, 13 insertions, 3 deletions

diff --git a/src/node/devcontainer-feature.json b/src/node/devcontainer-feature.json
index 8f92365..09097e5 100644
--- a/src/node/devcontainer-feature.json
+++ b/src/node/devcontainer-feature.json
@@ -1,6 +1,6 @@
 {
     "id": "node",
-    "version": "1.0.6",
+    "version": "1.0.7",
     "name": "Node.js (via nvm) and yarn",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/node",
     "description": "Installs Node.js, nvm, yarn, and needed dependencies.",
diff --git a/src/node/install.sh b/src/node/install.sh
index 6a237d6..2bdd21a 100755
--- a/src/node/install.sh
+++ b/src/node/install.sh
@@ -22,6 +22,9 @@ export NVM_VERSION="0.38.0"
 
 set -e
 
+# Clean up
+rm -rf /var/lib/apt/lists/*
+
 if [ "$(id -u)" -ne 0 ]; then
     echo -e 'Script must be run as root. Use sudo, su, or add "USER root" to your Dockerfile before running this script.'
     exit 1
@@ -62,8 +65,10 @@ updaterc() {
 }
 
 apt_get_update() {
-    echo "Running apt-get update..."
-    apt-get update -y
+    if [ "$(find /var/lib/apt/lists/* | wc -l)" = "0" ]; then
+        echo "Running apt-get update..."
+        apt-get update -y
+    fi
 }
 
 # Checks if packages are installed and installs them if not
@@ -109,6 +114,8 @@ if [ -d "${NVM_DIR}" ]; then
     if [ "${NODE_VERSION}" != "" ]; then
        su ${USERNAME} -c ". $NVM_DIR/nvm.sh && nvm install ${NODE_VERSION} && nvm clear-cache"
     fi
+    # Clean up
+    rm -rf /var/lib/apt/lists/*
     exit 0
 fi
 
@@ -187,4 +194,7 @@ fi
 
 find "${NVM_DIR}" -type d -print0 | xargs -n 1 -0 chmod g+s
 
+# Clean up
+rm -rf /var/lib/apt/lists/*
+
 echo "Done!"