checking for valid paths

install_wolf.sh

@@ -35,6 +35,11 @@ func_check_yn () {
    fi
 }
 
+# START #####################################################
+CORES=$(nproc)
+func_echo "The number of available cores on this machine is $CORES"
+RUN_PATH=$PWD
+
 ## OPTIONS #####################################################
 VERBOSE="true"
 INSTALL_PLUGINS=""
@@ -103,9 +108,21 @@ while getopts "vap:d:w:hf:c:" opt; do
          ;;
       d) # deps path      
          DEPS_PATH=$OPTARG
+         if cd $DEPS_PATH ; then
+            func_echo "Valid dependency path."
+         else
+            echo "Invalid dependency path."
+            exit 1
+         fi
          ;;
       w) # wolf path       
          WOLF_PATH=$OPTARG
+         if cd $WOLF_PATH ; then
+            func_echo "Valid wolf folder path."
+         else
+            echo "Invalid wolf folder path."
+            exit 1
+         fi
          ;;
       h )
          usage
@@ -123,10 +140,6 @@ while getopts "vap:d:w:hf:c:" opt; do
    esac
 done
 
-# START #####################################################
-CORES=$(nproc)
-func_echo "The number of available cores on this machine is $CORES"
-RUN_PATH=$PWD
 
 # UBUNTU
 if [ "$UID" -eq 0 -o "$EUID" -eq 0 ]; then
@@ -148,12 +161,16 @@ fi
 
 
 # WOLF DEPENDENCIES #####################################################
+cd $RUN_PATH
 func_echo "You are in folder $PWD"
 if [ $DEPS_PATH == "undefined" ]; then
    echo "Enter path for dependencies (either /global/path or relative/path):"
    read DEPS_PATH
 fi
-cd $DEPS_PATH
+while ! cd $DEPS_PATH ; do
+   echo "Invalid dependency path. Enter path for dependencies (either /global/path or relative/path):"
+   read DEPS_PATH
+done
 DEPS_PATH=$PWD
 func_echo "path dependencies: $DEPS_PATH"
 
@@ -227,7 +244,10 @@ if [ $WOLF_PATH == "undefined" ]; then
    echo "Enter path for wolf folder (either /global/path or relative/path):"
    read WOLF_PATH
 fi
-cd $WOLF_PATH
+while ! cd $WOLF_PATH ; do
+   echo "Invalid dependency path. Enter path for dependencies (either /global/path or relative/path):"
+   read WOLF_PATH
+done
 mkdir wolf
 cd wolf
 WOLF_PATH=$PWD