Introduce copy METHOD for installation

install.sh

@@ -2,6 +2,27 @@
 
 set -e
 
+# Adapted from stackoverflow: https://stackoverflow.com/a/246128
+# Get's the path of the current script calling the function
+# !! Doesn't check for circular symlinks !!
+# e.g /tmp/path/to/script.sh
+nvm_script_path(){
+  SOURCE=$0
+  while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
+    DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
+    SOURCE="$(readlink "$SOURCE")"
+    [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
+  done
+  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
+  FILENAME=`basename $SOURCE`
+  echo $DIR/$FILENAME
+}
+
+# Get the directory of the current script
+nvm_script_dir(){
+  echo "$( dirname $(nvm_script_path))"
+}
+
 nvm_has() {
   type "$1" > /dev/null 2>&1
   return $?
@@ -109,6 +130,21 @@ nvm_do_install() {
       exit 1
     fi
     install_nvm_as_script
+  # Copies install.sh dir to installation dir
+  elif [ "~$METHOD" = "~copy" ]; then
+    local COPY
+    COPY=true
+    DIR=`nvm_script_dir`
+    if [ $DIR = $NVM_DIR ]; then
+      echo "=> install.sh is already in $NVM_DIR"
+      COPY=false
+    elif [ -d $NVM_DIR ]; then
+      echo "=> $NVM_DIR already exists and its contents will be replaced"
+    fi
+    mkdir -p $NVM_DIR
+    if $COPY; then
+      cp -R $DIR/* $NVM_DIR
+    fi
   fi
 
   echo