[Fix]: nvm ls, nvm alias, nvm install: error when an LTS name is invalid

nvm.sh

@@ -3425,20 +3425,17 @@ nvm() {
         ;;
       esac
 
-      local EXIT_CODE
       VERSION="$(NVM_VERSION_ONLY=true NVM_LTS="${LTS-}" nvm_remote_version "${provided_version}")"
-      EXIT_CODE="$?"
 
-      if [ "${VERSION}" = 'N/A' ] || [ $EXIT_CODE -ne 0 ]; then
+      if [ "${VERSION}" = 'N/A' ]; then
         local LTS_MSG
         local REMOTE_CMD
         if [ "${LTS-}" = '*' ]; then
           LTS_MSG='(with LTS filter) '
           REMOTE_CMD='nvm ls-remote --lts'
         elif [ -n "${LTS-}" ]; then
+          LTS_MSG="(with LTS filter '${LTS}') "
           REMOTE_CMD="nvm ls-remote --lts=${LTS}"
-          nvm_err "Version with LTS filter '${LTS}' not found - try \`${REMOTE_CMD}\` to browse available versions."
-          return 3
         else
           REMOTE_CMD='nvm ls-remote'
         fi
@@ -3503,6 +3500,7 @@ nvm() {
         FLAVOR="$(nvm_node_prefix)"
       fi
 
+      local EXIT_CODE
       EXIT_CODE=0
 
       if nvm_is_version_installed "${VERSION}"; then

test/fast/Unit tests/nvm install with nonlowercase LTS name

@@ -5,31 +5,18 @@ die () { echo "$@" ; exit 1; }
 \. ../../../nvm.sh
 
 REMOTE="${PWD}/mocks/nvm_ls_remote.txt"
+nvm_ls_remote() {
+  cat "${REMOTE}"
+}
 REMOTE_IOJS="${PWD}/mocks/nvm_ls_remote_iojs.txt"
-
-nvm_download() {
-  if [ "$*" = "-L -s $(nvm_get_mirror node std)/index.tab -o -" ]; then
-    cat "${REMOTE}"
-  elif [ "$*" = "-L -s $(nvm_get_mirror iojs)/index.tab -o -" ]; then
-    cat "${REMOTE_IOJS}"
-  else
-    nvm_err "unknown nvm_download call: $*"
-    return 42
-  fi
+nvm_ls_remote_iojs() {
+  cat "${REMOTE_IOJS}"
 }
-
-nvm_install_binary() {
-  return 42
-}
-nvm_install_source() {
-  return 42
-}
-
 ACTUAL="$(nvm install lts/ARGON 2>&1)"
-EXIT_CODE=$?
-[ $EXIT_CODE -eq 3 ] || die "Expected exit code of 3, got ${EXIT_CODE}"
+if [ $? -ne 3 ]; then
+  die "Expected exit code of 3, got $?"
+fi
 
-EXPECTED="LTS names must be lowercase
-Version with LTS filter 'ARGON' not found - try \`nvm ls-remote --lts=ARGON\` to browse available versions."
+EXPECTED='LTS names must be lowercase'
 
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "Expected >${EXPECTED}<, got >${ACTUAL}<"

test/fast/Unit tests/nvm ls-remote

@@ -1,5 +1,7 @@
 #!/bin/sh
 
+set -e
+
 die () { echo "$@" ; cleanup ; exit 1; }
 
 cleanup() {
@@ -54,14 +56,6 @@ printf '%s\n' "${LTS_LIST}" | while IFS= read -r LTS; do
   INDEX=$(($INDEX + 1))
 done
 
-OUTPUT="$(nvm ls-remote lts/ARGON 2>&1)"
-EXIT_CODE=$?
-[ $EXIT_CODE -eq 3 ] || die "nvm ls-remote lts/ARGON did not exit 3, got '${EXIT_CODE}'"
-
-EXPECTED_OUTPUT="LTS names must be lowercase
-            N/A"
-[ "_${OUTPUT}" = "_${EXPECTED_OUTPUT}" ] || die "nvm ls-remote lts/ARGON did not output expected error message; got >${OUTPUT}< expected >${EXPECTED_OUTPUT}<"
-
 REMOTE="${PWD}/mocks/nvm_ls_remote.txt"
 nvm_ls_remote() {
   cat "${REMOTE}"
@@ -76,4 +70,10 @@ OUTPUT="$(nvm ls-remote | sed 's/[ \t]*$//')"
 EXPECTED_OUTPUT="$(cat "${EXPECTED_OUTPUT_PATH}" | sed 's/[ \t]*$//' )"
 [ "_${OUTPUT}" = "_${EXPECTED_OUTPUT}" ] || die "bare nvm ls-remote did not output expected sorted versions; got >${OUTPUT}< expected >${EXPECTED_OUTPUT}<"
 
+if OUTPUT="$(nvm ls-remote lts/ARGON 2>&1)"; then
+  die "nvm ls-remote lts/ARGON did not exit nonzero, got '$?'"
+fi
+EXPECTED_OUTPUT='LTS names must be lowercase'
+[ "_${OUTPUT}" = "_${EXPECTED_OUTPUT}" ] || die "nvm ls-remote lts/ARGON did not output expected error message; got >${OUTPUT}< expected >${EXPECTED_OUTPUT}<"
+
 cleanup

test/installation_node/install LTS

@@ -10,16 +10,16 @@ nvm unalias default >/dev/null 2>&1 || die 'unable to unalias default'
 
 set +ex # needed for stderr
 OUTPUT="$(nvm install --lts 3 2>&1)"
-EXIT_CODE="$?"
 set -ex
+EXIT_CODE="$(nvm install --lts 3 >/dev/null 2>&1 && echo $? || echo $?)"
 EXPECTED_OUTPUT="Version '3' (with LTS filter) not found - try \`nvm ls-remote --lts\` to browse available versions."
 [ "${EXIT_CODE}" = 3 ] || die "\`nvm install --lts 3\` did not exit with 3, got >${EXIT_CODE}<"
 [ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "\`nvm install --lts 3\` output >${OUTPUT}<, expected >${EXPECTED_OUTPUT}<"
 
 set +ex # needed for stderr
 OUTPUT="$(nvm install --lts=argon 3 2>&1)"
-EXIT_CODE="$?"
-set -x
+set -ex
+EXIT_CODE="$(nvm install --lts=argon 3 >/dev/null 2>&1 && echo $? || echo $?)"
 EXPECTED_OUTPUT="Version '3' (with LTS filter 'argon') not found - try \`nvm ls-remote --lts=argon\` to browse available versions."
 [ "${EXIT_CODE}" = 3 ] || die "\`nvm install --lts=argon 3\` did not exit with 3, got >${EXIT_CODE}<"
 [ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "\`nvm install --lts=argon 3\` output >${OUTPUT}<, expected >${EXPECTED_OUTPUT}<"