Merge 6375e4ed79dc584a8174e5816d68a1c31b6d9b27 into 5dc31ac51b08f910a2de1596b37a6a3dddd5e7b7

nvm.sh

@@ -439,6 +439,7 @@ else
 fi
 unset NVM_SCRIPT_SOURCE 2>/dev/null
 
+
 nvm_tree_contains_path() {
   local tree
   tree="${1-}"
@@ -454,14 +455,21 @@ nvm_tree_contains_path() {
   previous_pathdir="${node_path}"
   local pathdir
   pathdir=$(dirname "${previous_pathdir}")
+
+  # Convert tree path to canonical form for case-insensitive comparison
+  local tree_canonical
+  tree_canonical=$(cd "${tree}" && pwd -P)
+
   while [ "${pathdir}" != '' ] && [ "${pathdir}" != '.' ] && [ "${pathdir}" != '/' ] &&
-      [ "${pathdir}" != "${tree}" ] && [ "${pathdir}" != "${previous_pathdir}" ]; do
+      [ "${pathdir}" != "${tree_canonical}" ] && [ "${pathdir}" != "${previous_pathdir}" ]; do
     previous_pathdir="${pathdir}"
     pathdir=$(dirname "${previous_pathdir}")
   done
-  [ "${pathdir}" = "${tree}" ]
+
+  [ "${pathdir}" = "${tree_canonical}" ]
 }
 
+
 nvm_find_project_dir() {
   local path_
   path_="${PWD}"
@@ -700,10 +708,12 @@ nvm_ensure_version_installed() {
       nvm_err "N/A: version \"${PREFIXED_VERSION:-$PROVIDED_VERSION}\" is not yet installed."
     fi
     nvm_err ""
-    if [ "${IS_VERSION_FROM_NVMRC}" != '1' ]; then
-        nvm_err "You need to run \`nvm install ${PROVIDED_VERSION}\` to install and use it."
-      else
-        nvm_err 'You need to run `nvm install` to install and use the node version specified in `.nvmrc`.'
+    if [ "${PROVIDED_VERSION}" = 'lts' ]; then
+      nvm_err '`lts` is not an alias - you may need to run `nvm install --lts` to install and `nvm use --lts` to use it.'
+    elif [ "${IS_VERSION_FROM_NVMRC}" != '1' ]; then
+      nvm_err "You need to run \`nvm install ${PROVIDED_VERSION}\` to install and use it."
+    else
+      nvm_err 'You need to run `nvm install` to install and use the node version specified in `.nvmrc`.'
     fi
     return 1
   fi

test/slow/nvm use/Running 'nvm use lts' shows actionable error

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -ex
+
+die () { echo "$@" ; exit 1; }
+
+\. ../../../nvm.sh
+
+# Deactivate any active node version
+nvm deactivate >/dev/null 2>&1 || die 'deactivate failed'
+
+# Attempt to use 'lts' without '--' and capture the error message
+ERROR_OUTPUT=$(nvm use lts 2>&1) || true
+
+EXPECTED_ERROR='`lts` is not an alias - you may need to run `nvm install --lts` to install and `nvm use --lts` to use it.'
+
+# Check if the error message matches the expected output
+echo "$ERROR_OUTPUT" | grep -q "$EXPECTED_ERROR" \
+  || die "Expected error message not found. Got: $ERROR_OUTPUT"