inve can create non-default-named virtual env from arg

bin/inve

@@ -14,52 +14,47 @@
 # Stop on errors
 set -Eeuo pipefail
 
-# Search for virtual environments in directories with these names
-VIRTUAL_ENV_BASENAMES=".venv venv env"
+# Virtual environment search path, basenames only, space separated
+VENVPATH=".venv venv env"
 
 if [ -n "${1-}" ]; then
   # Virtual environment root specified as argument
   VIRTUAL_ENV="$1"
 else
-  # Save PWD
-  INVE_OLDPWD="`pwd`"
-
-  # Search up for the root of a virtual environment, trying each of the
-  # possible viretual env base names.
+  # Search from PWD to root, for any of the virtual env directory names
+  INVE_OLDPWD="$PWD"
   while [ "${PWD}" != "/" ]; do
-    for VIRTUAL_ENV_BASENAME in ${VIRTUAL_ENV_BASENAMES}; do
-      VIRTUAL_ENV="${PWD}/${VIRTUAL_ENV_BASENAME}"
+    for VENV_BASENAME in ${VENVPATH}; do
+      VIRTUAL_ENV="${PWD}/${VENV_BASENAME}"
       if [ -e "${VIRTUAL_ENV}/bin/activate" ]; then
         break 2  # break out of nested loop
       fi
     done
     cd ..
   done
   if [ "$PWD" = "/" ]; then
-    VIRTUAL_ENV_BASE=.venv
-    VIRTUAL_ENV="${INVE_OLDPWD}/${VIRTUAL_ENV_BASE}"
-    read -p "No virtual environment found.  Would you like to create ${VIRTUAL_ENV_BASE} ? [yn]: " -n 1 -r
-    echo
-    if [[ $REPLY =~ ^[Yy]$ ]]; then
-      echo "python3 -m venv ${VIRTUAL_ENV}"
-      python3 -m venv "${VIRTUAL_ENV}"
-      echo "pip install --upgrade --quiet pip setuptools wheel"
-      "${VIRTUAL_ENV}/bin/pip" install --upgrade --quiet pip setuptools wheel
-    else
-      echo "exit"
-      exit 1
-    fi
+    VIRTUAL_ENV="${INVE_OLDPWD}/.venv"  # Default to ./.venv
   fi
-
-  # Restore PWD
-  cd "${INVE_OLDPWD}"
+  cd $INVE_OLDPWD
 fi
 
-# Sanity checks
+# Virtual environment not found: offer to create
 if ! test -d "${VIRTUAL_ENV}"; then
-  echo "Error: directory does not exist: ${VIRTUAL_ENV}"
-  exit 1
+  BASENAME=$(basename "$VIRTUAL_ENV")
+  read -p "Virtual environment not found.  Create ${BASENAME} ? [yn]: " -n 1 -r
+  echo
+  if [[ $REPLY =~ ^[Yy]$ ]]; then
+    echo "python3 -m venv ${VIRTUAL_ENV}"
+    python3 -m venv "${VIRTUAL_ENV}"
+    echo "pip install --upgrade --quiet pip setuptools wheel"
+    "${VIRTUAL_ENV}/bin/pip" install --upgrade --quiet pip setuptools wheel
+  else
+    echo "exit"
+    exit 1
+  fi
 fi
+
+# Verify virtual environment exists
 if ! test -d "${VIRTUAL_ENV}/bin"; then
   echo "Error: directory does not exist: ${VIRTUAL_ENV}/bin"
   exit 1