Add --only-remove flag

node-reinstall

@@ -18,6 +18,9 @@ FORCE=0
 ## default node version
 NODE_VERSION="5"
 
+## Only remove
+ONLY_REMOVE=0
+
 usage () {
   printf "%s\n" "node-reinstall"
   printf "\t%s\n" "completely re-installs Node & NPM and any global node modules."
@@ -34,6 +37,7 @@ usage () {
   printf "\t%s %s\t\t%s\n" "node-reinstall" "--nave" "re-install using nave"
   printf "\t%s %s\t\t%s\n" "node-reinstall" "--nvm" "re-install using stable nvm - the default"
   printf "\t%s %s\t%s\n" "node-reinstall" "--nvm-latest" "re-install using latest nvm - creationix/nvm:master"
+  printf "\t%s %s\t%s\n" "node-reinstall" "--only-remove" "simply remove everything without re-installing"
   printf "\t%s %s\t\t%s\n" "node-reinstall" "0.12" "specify a default node version - currently ${NODE_VERSION}"
   printf "\n"
 }
@@ -73,6 +77,10 @@ usage () {
         STABLE=master
         ;;
 
+      --only-remove)
+        ONLY_REMOVE=1
+        ;;
+
       *)
         if [ "-" == "${opt:0:1}" ]; then
           echo >&2 "error: Unknown option \`$opt'"
@@ -114,38 +122,42 @@ if [[ ! -z $INSTALLED_NODE_VERSION ]]; then
   confirm
 fi
 
-# check to see if npm is installed
-IS_NPM_MISSING=$(which npm)
-if [[ -z $IS_NPM_MISSING ]]; then
-  echo "Installing Node, npm."
-else
-  echo "Completely reinstalling Node, npm."
-  # get list of global npm modules to reinstall
-  # omit the lib directory listing
-  GLOBAL_MODULES=`npm -g list --depth 0 --parseable | xargs basename | sed -E 's/^(lib|npm)$//g'`
-  if [[ -n $GLOBAL_MODULES ]]; then
-    echo "Will reinstall these global npm modules:"
-    echo $GLOBAL_MODULES
+if [[ $ONLY_REMOVE == 0 ]]; then
+  # check to see if npm is installed
+  IS_NPM_MISSING=$(which npm)
+  if [[ -z $IS_NPM_MISSING ]]; then
+    echo "Installing Node, npm."
   else
-    echo "===== ALERT! ====="
-    echo "The script did not find any global node modules (npm -g list)"
-    echo "If you are sure you installed global node modules"
-    echo "(by running npm install -g some-module), you might want to stop "
-    echo "here and locate those, because they won't be re-installed,"
-    echo "and since we'll be deleting all the possible install paths "
-    echo "that most people could use, you probably won't find them."
-    echo ""
-    echo "This can sometimes happen if you've installed global node modules"
-    echo "under a different node environment (for example, using nvm or nave)."
-    echo "It might help to run: "
-    echo "history | grep 'npm install' and look for either -g or --global"
-    echo ""
-    echo "If you aren't really sure, or you are sure and don't care, "
-    echo "you can continue; we'll re-install things the proper way, and"
-    echo "the next time you run this script you'll see a list of "
-    echo "any global node modules you've installed since now."
+    echo "Completely reinstalling Node, npm."
+    # get list of global npm modules to reinstall
+    # omit the lib directory listing
+    GLOBAL_MODULES=`npm -g list --depth 0 --parseable | xargs basename | sed -E 's/^(lib|npm)$//g'`
+    if [[ -n $GLOBAL_MODULES ]]; then
+      echo "Will reinstall these global npm modules:"
+      echo $GLOBAL_MODULES
+    else
+      echo "===== ALERT! ====="
+      echo "The script did not find any global node modules (npm -g list)"
+      echo "If you are sure you installed global node modules"
+      echo "(by running npm install -g some-module), you might want to stop "
+      echo "here and locate those, because they won't be re-installed,"
+      echo "and since we'll be deleting all the possible install paths "
+      echo "that most people could use, you probably won't find them."
+      echo ""
+      echo "This can sometimes happen if you've installed global node modules"
+      echo "under a different node environment (for example, using nvm or nave)."
+      echo "It might help to run: "
+      echo "history | grep 'npm install' and look for either -g or --global"
+      echo ""
+      echo "If you aren't really sure, or you are sure and don't care, "
+      echo "you can continue; we'll re-install things the proper way, and"
+      echo "the next time you run this script you'll see a list of "
+      echo "any global node modules you've installed since now."
+    fi
+    confirm
   fi
-  confirm
+else
+  echo "Removing Node, npm."
 fi
 
 if (( $USE_NVM )); then
@@ -182,42 +194,43 @@ sudo rm -rf $PREFIX/bin/{node,npm}
 sudo rm -rf $PREFIX/share/man/man1/node.1
 sudo rm -rf $PREFIX/lib/dtrace/node.d
 
-if (( $USE_NVM )); then
-  # go home and install NVM just because I feel safe there
-  cd $HOME
-  # get the latest stable version number of nvm from the repo's homepage
-  [ "$STABLE" == "" ] && STABLE=$(curl -s -k https://github.com/creationix/nvm/ | grep "curl https://raw.githubusercontent.com/creationix/nvm/" | grep -oE "v\d+\.\d+\.\d+")
-  [[ $STABLE =~ ^v[0-9]+.[0-9]+.[0-9]+$ ]] || STABLE="v0.25.1"
-  curl -sL https://raw.githubusercontent.com/creationix/nvm/$STABLE/install.sh | bash
-  source $HOME/.nvm/nvm.sh
-elif (( $USE_NAVE )); then
-  curl -sL https://raw.githubusercontent.com/isaacs/nave/master/nave.sh -o $PREFIX/bin/nave
-fi
+if [[ $ONLY_REMOVE == 0 ]]; then
+  if (( $USE_NVM )); then
+    # go home and install NVM just because I feel safe there
+    cd $HOME
+    # get the latest stable version number of nvm from the repo's homepage
+    [ "$STABLE" == "" ] && STABLE=$(curl -s -k https://github.com/creationix/nvm/ | grep "curl https://raw.githubusercontent.com/creationix/nvm/" | grep -oE "v\d+\.\d+\.\d+")
+    [[ $STABLE =~ ^v[0-9]+.[0-9]+.[0-9]+$ ]] || STABLE="v0.25.1"
+    curl -sL https://raw.githubusercontent.com/creationix/nvm/$STABLE/install.sh | bash
+    source $HOME/.nvm/nvm.sh
+  elif (( $USE_NAVE )); then
+    curl -sL https://raw.githubusercontent.com/isaacs/nave/master/nave.sh -o $PREFIX/bin/nave
+  fi
 
+  if (( $USE_NVM )); then
+    # install the specified version of node then set it as the default
+    nvm install $NODE_VERSION
+    nvm alias default $NODE_VERSION
+  elif (( $USE_NAVE )); then
+    nave usemain $NODE_VERSION
+  fi
 
-if (( $USE_NVM )); then
-  # install the specified version of node then set it as the default
-  nvm install $NODE_VERSION
-  nvm alias default $NODE_VERSION
-elif (( $USE_NAVE )); then
-  nave usemain $NODE_VERSION
-fi
+  if [[ ! -z ${GLOBAL_MODULES// } ]]; then
+    echo "Reinstalling your global npm modules:"
+    echo $GLOBAL_MODULES
+    if [[ $FORCE == 0 ]]; then
+      echo "Continue?"
+      select yn in "Yes" "No"; do
+        case $yn in
+          Yes ) npm install --global $GLOBAL_MODULES; break;;
+          No ) exit;;
+        esac
+      done
+    else
+      npm install --global $GLOBAL_MODULES
+    fi
 
-if [[ ! -z ${GLOBAL_MODULES// } ]]; then
-  echo "Reinstalling your global npm modules:"
-  echo $GLOBAL_MODULES
-  if [[ $FORCE == 0 ]]; then
-    echo "Continue?"
-    select yn in "Yes" "No"; do
-      case $yn in
-        Yes ) npm install --global $GLOBAL_MODULES; break;;
-        No ) exit;;
-      esac
-    done
-  else
-    npm install --global $GLOBAL_MODULES
   fi
-
 fi
 
 if [[ $OSTYPE =~ "darwin" ]]; then