Condition to avoid cpu detection bug

src/freedombone-utils-nodejs

@@ -175,17 +175,22 @@ function mesh_install_nodejs {
 
     # update from the old debian nodejs version
     $mesh_install_nodejs_prefix npm install --arch=$NPM_ARCH -g n@${NODEJS_N_VERSION} --save
-    #$mesh_install_nodejs_prefix n --arch $N_ARCH ${NODEJS_VERSION}
-    #nodejs_fix_cpu_detection
-    #cp "$rootdir/root/npm" "$rootdir/usr/bin/npm"
-    #cp "$rootdir/root/npm" "$rootdir/usr/local/bin/npm"
-
-    # deliberate second install of npm
-    #$mesh_install_nodejs_prefix npm install --arch=$NPM_ARCH -g npm@${NPM_VERSION} --save
-    #if [ -f "$rootdir/usr/local/bin/npm" ]; then
-    #    cp "$rootdir/usr/local/bin/npm" "$rootdir/usr/bin/npm"
-    #fi
-    #cp "$rootdir/usr/bin/npm" "$rootdir/root/npm"
+    if [ ! "$rootdir" ]; then
+        # Don't do this if we're building an image,
+        # because cpu detection faults occur.
+        # This condition may no longer be needed in future once the bug is fixed
+        $mesh_install_nodejs_prefix n --arch $N_ARCH ${NODEJS_VERSION}
+        nodejs_fix_cpu_detection
+        cp "$rootdir/root/npm" "$rootdir/usr/bin/npm"
+        cp "$rootdir/root/npm" "$rootdir/usr/local/bin/npm"
+
+        # deliberate second install of npm
+        $mesh_install_nodejs_prefix npm install --arch=$NPM_ARCH -g npm@${NPM_VERSION} --save
+        if [ -f "$rootdir/usr/local/bin/npm" ]; then
+            cp "$rootdir/usr/local/bin/npm" "$rootdir/usr/bin/npm"
+        fi
+        cp "$rootdir/usr/bin/npm" "$rootdir/root/npm"
+    fi
     if [ -f "$rootdir/usr/bin/node" ]; then
         cp "$rootdir/usr/bin/node" "$rootdir/usr/local/bin/node"
     fi