Merge 61cb9f7cdba14aa1c0276082aaf122716a3e8021 into 4beab63631764fc381a0e56273faf8d43b8f9509

Fixes #3402

install.sh

@@ -428,7 +428,10 @@ nvm_do_install() {
   COMPLETION_STR='[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion\n'
   BASH_OR_ZSH=false
 
-  if [ -z "${NVM_PROFILE-}" ] ; then
+  if [ "${PROFILE-}" = '/dev/null' ] ; then
+    # the user has specifically requested NOT to have nvm touch their profile
+    echo
+  elif [ -z "${NVM_PROFILE-}" ] ; then
     local TRIED_PROFILE
     if [ -n "${PROFILE}" ]; then
       TRIED_PROFILE="${NVM_PROFILE} (as defined in \$PROFILE), "

nvm.sh

@@ -503,9 +503,9 @@ $(nvm_wrap_with_color_code 'y' "${warn_text}")"
 }
 
 nvm_process_nvmrc() {
-  local NVMRC_PATH="$1"
+  local NVMRC_PATH
+  NVMRC_PATH="$1"
   local lines
-  local unpaired_line
 
   lines=$(command sed 's/#.*//' "$NVMRC_PATH" | command sed 's/^[[:space:]]*//;s/[[:space:]]*$//' | nvm_grep -v '^$')
 
@@ -515,8 +515,12 @@ nvm_process_nvmrc() {
   fi
 
   # Initialize key-value storage
-  local keys=''
-  local values=''
+  local keys
+  keys=''
+  local values
+  values=''
+  local unpaired_line
+  unpaired_line=''
 
   while IFS= read -r line; do
     if [ -z "${line}" ]; then