v0.40.4

Include the requested version in the uninstall error output when

the target is not installed.

Add a fast test to lock the behavior.

Close #3767

.github/workflows/lint.yml

@@ -70,3 +70,12 @@ jobs:
       - uses: actions/checkout@v6
       - name: check tests filenames
         run: ./rename_test.sh --check
+
+  all:
+    permissions:
+      contents: none
+    name: 'all linting'
+    needs: [eclint, dockerfile_lint, doctoc, test_naming]
+    runs-on: ubuntu-latest
+    steps:
+      - run: true

.github/workflows/nvm-install-test.yml

@@ -10,6 +10,9 @@ on:
         required: false
         default: 'HEAD'
 
+permissions:
+  contents: read
+
 jobs:
   matrix:
     runs-on: ubuntu-latest

.github/workflows/tests-fast.yml

@@ -82,7 +82,7 @@ jobs:
           unset NVM_CD_FLAGS NVM_BIN NVM_INC
           export NVM_DIR="${{ github.workspace }}"
           export PATH="$(echo "$PATH" | tr ':' '\n' | grep -v '\.nvm' | grep -v 'toolcache' | tr '\n' ':')"
-          make TEST_SUITE="fast" SHELL="${{ matrix.shell }}" URCHIN="$URCHIN_PATH" test-${{ matrix.shell }}
+          make TERM=xterm-256color TEST_SUITE="fast" SHELL="${{ matrix.shell }}" URCHIN="$URCHIN_PATH" test-${{ matrix.shell }}
       - name: Restore system node
         if: always()
         run: |

.github/workflows/tests-installation-iojs.yml

@@ -76,7 +76,7 @@ jobs:
           unset NVM_CD_FLAGS NVM_BIN NVM_INC
           export NVM_DIR="${{ github.workspace }}"
           export PATH="$(echo "$PATH" | tr ':' '\n' | grep -v '\.nvm' | grep -v 'toolcache' | tr '\n' ':')"
-          make TEST_SUITE="installation_iojs" SHELL="${{ matrix.shell }}" URCHIN="$URCHIN_PATH" test-${{ matrix.shell }}
+          make TERM=xterm-256color TEST_SUITE="installation_iojs" SHELL="${{ matrix.shell }}" URCHIN="$URCHIN_PATH" test-${{ matrix.shell }}
       - name: Restore system node
         if: always()
         run: |

.github/workflows/tests.yml

@@ -12,6 +12,7 @@ jobs:
 
     name: "tests"
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     defaults:
       run:
         shell: 'script -q -e -c "${{ matrix.shell }} {0}"'
@@ -68,7 +69,19 @@ jobs:
       - run: npm ls urchin
       - run: npx which urchin
       - run: env
-      - run: make TEST_SUITE="${{ matrix.suite }}" SHELL="${{ matrix.shell }}" URCHIN="$(npx which urchin)" test-${{ matrix.shell }}
+      - name: Run tests
+        shell: bash
+        run: |
+          for attempt in 1 2 3; do
+            timeout 600 make TERM=xterm-256color TEST_SUITE="${{ matrix.suite }}" SHELL="${{ matrix.shell }}" URCHIN="$(npx which urchin)" test-${{ matrix.shell }} && exit 0
+            EXIT_CODE=$?
+            if [ $EXIT_CODE -ne 124 ]; then
+              exit $EXIT_CODE
+            fi
+            echo "Attempt ${attempt} timed out; retrying..."
+          done
+          echo "All 3 attempts timed out."
+          exit 1
 
   nvm:
     permissions:

AGENTS.md

@@ -1,6 +1,6 @@
-# nvm Copilot Instructions
+# nvm Coding Agent Instructions
 
-This document provides guidance for GitHub Copilot when working with the Node Version Manager (nvm) codebase.
+This document provides guidance for AI coding agents when working with the Node Version Manager (nvm) codebase.
 
 ## Overview
 
@@ -424,4 +424,4 @@ nvm works on Windows via several compatibility layers:
 2. Include bash, curl, git, tar, and wget packages during installation
 3. Run nvm installation in Cygwin terminal
 
-This guide should help GitHub Copilot understand the nvm codebase structure, testing procedures, and development environment setup requirements.
+This guide should help AI coding agents understand the nvm codebase structure, testing procedures, and development environment setup requirements.

CLAUDE.md

@@ -0,0 +1 @@
+AGENTS.md

README.md

@@ -6,7 +6,7 @@
 </a>
 
 
-# Node Version Manager [![Tests](https://github.com/nvm-sh/nvm/actions/workflows/tests-fast.yml/badge.svg?branch=master)][3] [![nvm version](https://img.shields.io/badge/version-v0.40.3-yellow.svg)][4] [![CII Best Practices](https://bestpractices.dev/projects/684/badge)](https://bestpractices.dev/projects/684)
+# Node Version Manager [![Tests](https://github.com/nvm-sh/nvm/actions/workflows/tests-fast.yml/badge.svg?branch=master)][3] [![nvm version](https://img.shields.io/badge/version-v0.40.4-yellow.svg)][4] [![CII Best Practices](https://bestpractices.dev/projects/684/badge)](https://bestpractices.dev/projects/684)
 
 <!-- To update this table of contents, ensure you have run `npm install` then `npm run doctoc` -->
 <!-- START doctoc generated TOC please keep comment here to allow auto update -->
@@ -104,10 +104,10 @@ nvm is a version manager for [node.js](https://nodejs.org/en/), designed to be i
 
 To **install** or **update** nvm, you should run the [install script][2]. To do that, you may either download and run the script manually, or use the following cURL or Wget command:
 ```sh
-curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash
 ```
 ```sh
-wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
+wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash
 ```
 
 Running either of the above commands downloads a script and runs it. The script clones the nvm repository to `~/.nvm`, and attempts to add the source lines from the snippet below to the correct profile file (`~/.bashrc`, `~/.bash_profile`, `~/.zshrc`, or `~/.profile`). If you find the install script is updating the wrong profile file, set the `$PROFILE` env var to the profile file’s path, and then rerun the installation script.
@@ -134,7 +134,7 @@ Eg: `curl ... | NVM_DIR="path/to/nvm"`. Ensure that the `NVM_DIR` does not conta
 
 - The installer can use `git`, `curl`, or `wget` to download `nvm`, whichever is available.
 
-- You can instruct the installer to not edit your shell config (for example if you already get completions via a [zsh nvm plugin](https://github.com/ohmyzsh/ohmyzsh/tree/master/plugins/nvm)) by setting `PROFILE=/dev/null` before running the `install.sh` script. Here's an example one-line command to do that: `PROFILE=/dev/null bash -c 'curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash'`
+- You can instruct the installer to not edit your shell config (for example if you already get completions via a [zsh nvm plugin](https://github.com/ohmyzsh/ohmyzsh/tree/master/plugins/nvm)) by setting `PROFILE=/dev/null` before running the `install.sh` script. Here's an example one-line command to do that: `PROFILE=/dev/null bash -c 'curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash'`
 
 #### Installing in Docker
 
@@ -150,7 +150,7 @@ RUN touch "${BASH_ENV}"
 RUN echo '. "${BASH_ENV}"' >> ~/.bashrc
 
 # Download and install nvm
-RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | PROFILE="${BASH_ENV}" bash
+RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | PROFILE="${BASH_ENV}" bash
 RUN echo node > .nvmrc
 RUN nvm install
 ```
@@ -168,7 +168,7 @@ ARG NODE_VERSION=20
 RUN apt update && apt install curl -y
 
 # install nvm
-RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
+RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash
 
 # set env
 ENV NVM_DIR=/root/.nvm
@@ -194,7 +194,7 @@ After creation of the image you can start container interactively and run comman
 docker run --rm -it nvmimage
 
 root@0a6b5a237c14:/# nvm -v
-0.40.3
+0.40.4
 
 root@0a6b5a237c14:/# node -v
 v19.9.0
@@ -257,7 +257,7 @@ You can use a task:
 ```yaml
 - name: Install nvm
   ansible.builtin.shell: >
-    curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
+    curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash
   args:
     creates: "{{ ansible_env.HOME }}/.nvm/nvm.sh"
 ```
@@ -319,7 +319,7 @@ If you have `git` installed (requires git v1.7.10+):
 
 1. clone this repo in the root of your user profile
     - `cd ~/` from anywhere then `git clone https://github.com/nvm-sh/nvm.git .nvm`
-1. `cd ~/.nvm` and check out the latest version with `git checkout v0.40.3`
+1. `cd ~/.nvm` and check out the latest version with `git checkout v0.40.4`
 1. activate `nvm` by sourcing it from your shell: `. ./nvm.sh`
 
 Now add these lines to your `~/.bashrc`, `~/.profile`, or `~/.zshrc` file to have it automatically sourced upon login:
@@ -928,13 +928,13 @@ If installing nvm on Alpine Linux *is* still what you want or need to do, you sh
 ### Alpine Linux 3.13+
 ```sh
 apk add -U curl bash ca-certificates openssl ncurses coreutils python3 make gcc g++ libgcc linux-headers grep util-linux binutils findutils
-curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash
 ```
 
 ### Alpine Linux 3.5 - 3.12
 ```sh
 apk add -U curl bash ca-certificates openssl ncurses coreutils python2 make gcc g++ libgcc linux-headers grep util-linux binutils findutils
-curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash
 ```
 
 _Note: Alpine 3.5 can only install NodeJS versions up to v6.9.5, Alpine 3.6 can only install versions up to v6.10.3, Alpine 3.7 installs versions up to v8.9.3, Alpine 3.8 installs versions up to v8.14.0, Alpine 3.9 installs versions up to v10.19.0, Alpine 3.10 installs versions up to v10.24.1, Alpine 3.11 installs versions up to v12.22.6, Alpine 3.12 installs versions up to v12.22.12, Alpine 3.13 & 3.14 install versions up to v14.20.0, Alpine 3.15 & 3.16 install versions up to v16.16.0 (**These are all versions on the main branch**). Alpine 3.5 - 3.12 required the package `python2` to build NodeJS, as they are older versions to build. Alpine 3.13+ requires `python3` to successfully build newer NodeJS versions, but you can use `python2` with Alpine 3.13+ if you need to build versions of node supported in Alpine 3.5 - 3.15, you just need to specify what version of NodeJS you need to install in the package install script._
@@ -1037,9 +1037,9 @@ You have to make sure that the user directory name in `$HOME` and the user direc
 To change the user directory and/or account name follow the instructions [here](https://support.apple.com/en-us/HT201548)
 
 [1]: https://github.com/nvm-sh/nvm.git
-[2]: https://github.com/nvm-sh/nvm/blob/v0.40.3/install.sh
+[2]: https://github.com/nvm-sh/nvm/blob/v0.40.4/install.sh
 [3]: https://github.com/nvm-sh/nvm/actions/workflows/tests-fast.yml
-[4]: https://github.com/nvm-sh/nvm/releases/tag/v0.40.3
+[4]: https://github.com/nvm-sh/nvm/releases/tag/v0.40.4
 [Urchin]: https://git.sdf.org/tlevine/urchin
 [Fish]: https://fishshell.com
 
@@ -1097,7 +1097,7 @@ Here's what you will need to do:
   If one of these broken versions is installed on your system, the above step will likely still succeed even if you didn't include the `--shared-zlib` flag.
   However, later, when you attempt to `npm install` something using your old version of node.js, you will see `incorrect data check` errors.
   If you want to avoid the possible hassle of dealing with this, include that flag.
-  For more details, see [this issue](https://github.com/nodejs/node/issues/39313) and [this comment](https://github.com/nodejs/node/issues/39313#issuecomment-90.40.376)
+  For more details, see [this issue](https://github.com/nodejs/node/issues/39313) and [this comment](https://github.com/nodejs/node/issues/39313#issuecomment-90.40.476)
 
 - Exit back to your native shell.
 
@@ -1124,7 +1124,7 @@ Now you should be able to use node as usual.
 If you've encountered this error on WSL-2:
 
   ```sh
-  curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
+  curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.4/install.sh | bash
   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                   Dload  Upload  Total   Spent    Left  Speed
   0     0    0     0    0     0      0      0 --:--:--  0:00:09 --:--:--     0curl: (6) Could not resolve host: raw.githubusercontent.com
@@ -1159,7 +1159,7 @@ Currently, the sole maintainer is [@ljharb](https://github.com/ljharb) - more ma
 
 ## Project Support
 
-Only the latest version (v0.40.3 at this time) is supported.
+Only the latest version (v0.40.4 at this time) is supported.
 
 ## Enterprise Support
 

install.sh

@@ -33,7 +33,7 @@ nvm_install_dir() {
 }
 
 nvm_latest_version() {
-  nvm_echo "v0.40.3"
+  nvm_echo "v0.40.4"
 }
 
 nvm_profile_is_bash_or_zsh() {

nvm.sh

@@ -83,7 +83,7 @@ nvm_has_colors() {
   if nvm_has tput; then
     NVM_NUM_COLORS="$(command tput -T "${TERM:-vt100}" colors)"
   fi
-  [ "${NVM_NUM_COLORS:--1}" -ge 8 ] && [ "${NVM_NO_COLORS-}" != '--no-colors' ]
+  [ -t 1 ] && [ "${NVM_NUM_COLORS:--1}" -ge 8 ] && [ "${NVM_NO_COLORS-}" != '--no-colors' ]
 }
 
 nvm_curl_libz_support() {
@@ -149,7 +149,8 @@ nvm_download() {
     ")
 
     if [ -n "${NVM_AUTH_HEADER:-}" ]; then
-      ARGS="${ARGS} --header \"${NVM_AUTH_HEADER}\""
+      sanitized_header=$(nvm_sanitize_auth_header "${NVM_AUTH_HEADER}")
+      ARGS="${ARGS} --header \"${sanitized_header}\""
     fi
     # shellcheck disable=SC2086
     eval wget $ARGS
@@ -758,6 +759,11 @@ nvm_version() {
     ;;
   esac
   VERSION="$(nvm_ls "${PATTERN}" | command tail -1)"
+  case "${VERSION}" in
+    system[[:blank:]]*)
+      VERSION='system'
+    ;;
+  esac
   if [ -z "${VERSION}" ] || [ "_${VERSION}" = "_N/A" ]; then
     nvm_echo "N/A"
     return 3
@@ -1462,6 +1468,18 @@ nvm_ls() {
       PATTERN="${PATTERN}-"
     ;;
     *)
+      local ALIAS_TARGET
+      ALIAS_TARGET="$(nvm_resolve_alias "${PATTERN}" 2>/dev/null || nvm_echo)"
+      if [ "_${ALIAS_TARGET}" = '_system' ] && (nvm_has_system_iojs || nvm_has_system_node); then
+        local SYSTEM_VERSION
+        SYSTEM_VERSION="$(nvm deactivate >/dev/null 2>&1 && node -v 2>/dev/null)"
+        if [ -n "${SYSTEM_VERSION}" ]; then
+          nvm_echo "system ${SYSTEM_VERSION}"
+        else
+          nvm_echo "system"
+        fi
+        return
+      fi
       if nvm_resolve_local_alias "${PATTERN}"; then
         return
       fi
@@ -1565,13 +1583,24 @@ nvm_ls() {
   fi
 
   if [ "${NVM_ADD_SYSTEM-}" = true ]; then
+    local SYSTEM_VERSION
+    SYSTEM_VERSION="$(nvm deactivate >/dev/null 2>&1 && node -v 2>/dev/null)"
     case "${PATTERN}" in
       '' | v)
-        VERSIONS="${VERSIONS}
+        if [ -n "${SYSTEM_VERSION}" ]; then
+          VERSIONS="${VERSIONS}
+system ${SYSTEM_VERSION}"
+        else
+          VERSIONS="${VERSIONS}
 system"
+        fi
       ;;
       system)
-        VERSIONS="system"
+        if [ -n "${SYSTEM_VERSION}" ]; then
+          VERSIONS="system ${SYSTEM_VERSION}"
+        else
+          VERSIONS="system"
+        fi
       ;;
     esac
   fi
@@ -1913,6 +1942,7 @@ BEGIN {
 
   fmt_latest_lts = has_colors && latest_lts_color ? ("\033[" latest_lts_color " (Latest LTS: %s)\033[0m") : " (Latest LTS: %s)";
   fmt_old_lts = has_colors && old_lts_color ? ("\033[" old_lts_color " (LTS: %s)\033[0m") : " (LTS: %s)";
+  fmt_system_target = has_colors && system_color ? (" (\033[" system_color "-> %s\033[0m)") : " (-> %s)";
 
   split(remote_versions, lines, "|");
   split(installed_versions, installed, "|");
@@ -1944,6 +1974,8 @@ BEGIN {
 
     if (cols == 1) {
       formatted = sprintf(fmt_version, version);
+    } else if (version == "system" && cols >= 2) {
+      formatted = sprintf((fmt_version fmt_system_target), version, fields[2]);
     } else if (cols == 2) {
       formatted = sprintf((fmt_version padding fmt_old_lts), version, fields[2]);
     } else if (cols == 3 && fields[3] == "*") {
@@ -3719,7 +3751,13 @@ nvm() {
       fi
 
       if ! nvm_is_version_installed "${VERSION}"; then
-        nvm_err "${VERSION} version is not installed..."
+        local REQUESTED_VERSION
+        REQUESTED_VERSION="${PATTERN}"
+        if [ "_${VERSION}" != "_N/A" ] && [ "_${VERSION}" != "_${PATTERN}" ]; then
+          nvm_err "Version '${VERSION}' (inferred from ${PATTERN}) is not installed."
+        else
+          nvm_err "Version '${REQUESTED_VERSION}' is not installed."
+        fi
         return
       fi
 
@@ -4459,7 +4497,7 @@ nvm() {
       NVM_VERSION_ONLY=true NVM_LTS="${NVM_LTS-}" nvm_remote_version "${PATTERN:-node}"
     ;;
     "--version" | "-v")
-      nvm_echo '0.40.3'
+      nvm_echo '0.40.4'
     ;;
     "unload")
       nvm deactivate >/dev/null 2>&1

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nvm",
-  "version": "0.40.3",
+  "version": "0.40.4",
   "description": "Node Version Manager - Simple bash script to manage multiple active node.js versions",
   "directories": {
     "test": "test"

test/fast/Aliases/Running 'nvm alias ˂aliasname˃ ˂target˃' again should change the target

@@ -15,11 +15,11 @@ fi
 nvm alias test-stable-1 0.0.2 || die '`nvm alias test-stable-1 0.0.2` failed'
 
 OUTPUT="$(nvm alias test-stable-1 | strip_colors)"
-EXPECTED_OUTPUT='test-stable-1 -> 0.0.2 (-> v0.0.2)'
+EXPECTED_OUTPUT='test-stable-1 -> 0.0.2 (-> v0.0.2 *)'
 echo "$OUTPUT" | \grep -F "$EXPECTED_OUTPUT" || die "nvm alias test-stable-1 0.0.2 did not set test-stable-1 to 0.0.2: got '$OUTPUT'"
 
 nvm alias test-stable-1 0.0.1 || die '`nvm alias test-stable-1 0.0.1` failed'
 
 OUTPUT="$(nvm alias test-stable-1 | strip_colors)"
-EXPECTED_OUTPUT='test-stable-1 -> 0.0.1 (-> v0.0.1)'
+EXPECTED_OUTPUT='test-stable-1 -> 0.0.1 (-> v0.0.1 *)'
 echo "$OUTPUT" | \grep -F "$EXPECTED_OUTPUT" || die "nvm alias test-stable-1 0.0.1 did not set test-stable-1 to 0.0.1: got '$OUTPUT'"

test/fast/Aliases/Running 'nvm alias' lists implicit aliases when they do not exist

@@ -10,18 +10,18 @@ NVM_ALIAS_OUTPUT=$(nvm alias | strip_colors)
 
 EXPECTED_STABLE="$(nvm_print_implicit_alias local stable)"
 STABLE_VERSION="$(nvm_version "$EXPECTED_STABLE")"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F "stable -> $EXPECTED_STABLE (-> $STABLE_VERSION) (default)" \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F "stable -> $EXPECTED_STABLE (-> $STABLE_VERSION *) (default)" \
   || die "nvm alias did not contain the default local stable node version; got '$NVM_ALIAS_OUTPUT'"
 
-echo "$NVM_ALIAS_OUTPUT" | \grep -F "node -> stable (-> $STABLE_VERSION) (default)" \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F "node -> stable (-> $STABLE_VERSION *) (default)" \
   || die "nvm alias did not contain the default local stable node version under 'node'; got '$NVM_ALIAS_OUTPUT'"
 
 EXPECTED_UNSTABLE="$(nvm_print_implicit_alias local unstable)"
 UNSTABLE_VERSION="$(nvm_version "$EXPECTED_UNSTABLE")"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F "unstable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION) (default)" \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F "unstable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION *) (default)" \
   || die "nvm alias did not contain the default local unstable node version; got '$NVM_ALIAS_OUTPUT'"
 
 EXPECTED_IOJS="$(nvm_print_implicit_alias local iojs)"
 IOJS_VERSION="$(nvm_version "$EXPECTED_IOJS")"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F "iojs -> $EXPECTED_IOJS (-> $IOJS_VERSION) (default)" \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F "iojs -> $EXPECTED_IOJS (-> $IOJS_VERSION *) (default)" \
   || die "nvm alias did not contain the default local iojs version; got '$NVM_ALIAS_OUTPUT'"

test/fast/Aliases/Running 'nvm alias' lists manual aliases instead of implicit aliases when present

@@ -35,16 +35,16 @@ nvm alias iojs unstable
 
 NVM_ALIAS_OUTPUT=$(nvm alias | strip_colors)
 
-echo "$NVM_ALIAS_OUTPUT" | command grep -F "stable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION)" \
+echo "$NVM_ALIAS_OUTPUT" | command grep -F "stable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION *)" \
   || die "nvm alias did not contain the overridden 'stable' alias; got '$NVM_ALIAS_OUTPUT'"
 
-echo "$NVM_ALIAS_OUTPUT" | command grep -F "unstable -> $EXPECTED_STABLE (-> $STABLE_VERSION)" \
+echo "$NVM_ALIAS_OUTPUT" | command grep -F "unstable -> $EXPECTED_STABLE (-> $STABLE_VERSION *)" \
   || die "nvm alias did not contain the overridden 'unstable' alias; got '$NVM_ALIAS_OUTPUT'"
 
-echo "$NVM_ALIAS_OUTPUT" | command grep -F "node -> stable (-> $UNSTABLE_VERSION)" \
+echo "$NVM_ALIAS_OUTPUT" | command grep -F "node -> stable (-> $UNSTABLE_VERSION *)" \
   || die "nvm alias did not contain the overridden 'node' alias; got '$NVM_ALIAS_OUTPUT'"
 
-echo "$NVM_ALIAS_OUTPUT" | command grep -F "iojs -> unstable (-> $STABLE_VERSION)" \
+echo "$NVM_ALIAS_OUTPUT" | command grep -F "iojs -> unstable (-> $STABLE_VERSION *)" \
   || die "nvm alias did not contain the overridden 'iojs' alias; got '$NVM_ALIAS_OUTPUT'"
 
 cleanup

test/fast/Aliases/Running 'nvm alias' should list all aliases

@@ -7,43 +7,43 @@
 die () { echo "$@" ; exit 1; }
 
 NVM_ALIAS_OUTPUT="$(nvm alias | strip_colors)"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-1 -> 0.0.1 (-> v0.0.1)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-1 -> 0.0.1 (-> v0.0.1 *)' \
   || die "did not find test-stable-1 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-2 -> 0.0.2 (-> v0.0.2)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-2 -> 0.0.2 (-> v0.0.2 *)' \
   || die "did not find test-stable-2 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-3 -> 0.0.3 (-> v0.0.3)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-3 -> 0.0.3 (-> v0.0.3 *)' \
   || die "did not find test-stable-3 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-4 -> 0.0.4 (-> v0.0.4)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-4 -> 0.0.4 (-> v0.0.4 *)' \
   || die "did not find test-stable-4 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-5 -> 0.0.5 (-> v0.0.5)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-5 -> 0.0.5 (-> v0.0.5 *)' \
   || die "did not find test-stable-5 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-6 -> 0.0.6 (-> v0.0.6)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-6 -> 0.0.6 (-> v0.0.6 *)' \
   || die "did not find test-stable-6 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-7 -> 0.0.7 (-> v0.0.7)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-7 -> 0.0.7 (-> v0.0.7 *)' \
   || die "did not find test-stable-7 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-8 -> 0.0.8 (-> v0.0.8)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-8 -> 0.0.8 (-> v0.0.8 *)' \
   || die "did not find test-stable-8 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-9 -> 0.0.9 (-> v0.0.9)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-9 -> 0.0.9 (-> v0.0.9 *)' \
   || die "did not find test-stable-9 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-10 -> 0.0.10 (-> v0.0.10)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-stable-10 -> 0.0.10 (-> v0.0.10 *)' \
   || die "did not find test-stable-10 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-1 -> 0.1.1 (-> v0.1.1)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-1 -> 0.1.1 (-> v0.1.1 *)' \
   || die "did not find test-unstable-1 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-2 -> 0.1.2 (-> v0.1.2)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-2 -> 0.1.2 (-> v0.1.2 *)' \
   || die "did not find test-unstable-2 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-3 -> 0.1.3 (-> v0.1.3)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-3 -> 0.1.3 (-> v0.1.3 *)' \
   || die "did not find test-unstable-3 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-4 -> 0.1.4 (-> v0.1.4)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-4 -> 0.1.4 (-> v0.1.4 *)' \
   || die "did not find test-unstable-4 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-5 -> 0.1.5 (-> v0.1.5)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-5 -> 0.1.5 (-> v0.1.5 *)' \
   || die "did not find test-unstable-5 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-6 -> 0.1.6 (-> v0.1.6)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-6 -> 0.1.6 (-> v0.1.6 *)' \
   || die "did not find test-unstable-6 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-7 -> 0.1.7 (-> v0.1.7)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-7 -> 0.1.7 (-> v0.1.7 *)' \
   || die "did not find test-unstable-7 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-8 -> 0.1.8 (-> v0.1.8)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-8 -> 0.1.8 (-> v0.1.8 *)' \
   || die "did not find test-unstable-8 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-9 -> 0.1.9 (-> v0.1.9)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-9 -> 0.1.9 (-> v0.1.9 *)' \
   || die "did not find test-unstable-9 alias; got '$NVM_ALIAS_OUTPUT'"
-echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-10 -> 0.1.10 (-> v0.1.10)' \
+echo "$NVM_ALIAS_OUTPUT" | \grep -F 'test-unstable-10 -> 0.1.10 (-> v0.1.10 *)' \
   || die "did not find test-unstable-10 alias; got '$NVM_ALIAS_OUTPUT'"

test/fast/Aliases/nvm_ensure_default_set

@@ -14,7 +14,7 @@ nvm_ensure_default_set 0.3 || die "'nvm_ensure_default_set' with an existing def
 nvm unalias default || die "'nvm unalias default' failed"
 
 OUTPUT="$(nvm_ensure_default_set 0.2)"
-EXPECTED_OUTPUT="Creating default alias: default -> 0.2 (-> iojs-v0.2.10)"
+EXPECTED_OUTPUT="Creating default alias: default -> 0.2 (-> iojs-v0.2.10 *)"
 EXIT_CODE="$?"
 
 [ "_$(echo "$OUTPUT" | strip_colors)" = "_$EXPECTED_OUTPUT" ] || die "'nvm_ensure_default_set 0.2' did not output '$EXPECTED_OUTPUT', got '$OUTPUT'"

test/fast/Aliases/nvm_list_aliases calls nvm_get_colors

@@ -7,6 +7,8 @@ die () { echo "$@" ; exit 1; }
 
 set -e
 
+nvm_has_colors() { return 0; }
+
 nvm_get_colors(){
   echo "0;95m"
 }

test/fast/Aliases/nvm_print_alias_path calls nvm_get_colors

@@ -11,6 +11,8 @@ die () {
 
 set -e
 
+nvm_has_colors() { return 0; }
+
 nvm_get_colors(){
   echo "0;95m"
 }

test/fast/Aliases/nvm_print_formatted_alias calls nvm_get_colors

@@ -9,6 +9,9 @@ die () {
 }
 
 set -e
+
+nvm_has_colors() { return 0; }
+
 # # # expecting in red and two grays:
 OUTPUT=$(echo $(nvm_print_formatted_alias fakealias fakedest) | awk '{ print substr($0, 1, 21); }')
 EXPECTED_OUTPUT="$(command printf %b "\033[0;31mfakealias\033[0m ")"

test/fast/Listing paths/Running 'nvm which' should respect alias pointing to system

@@ -0,0 +1,36 @@
+#!/bin/sh
+
+set -ex
+
+die () { echo "$@" ; cleanup ; exit 1; }
+cleanup() {
+  rm -f "$(nvm_alias_path)/default"
+  if [ -n "${SYSTEM_DIR-}" ]; then
+    rm -rf "${SYSTEM_DIR}"
+  fi
+  if [ -n "${ORIG_PATH-}" ]; then
+    PATH="${ORIG_PATH}"
+  fi
+}
+
+\. ../../../nvm.sh
+
+nvm_make_alias default system
+
+ORIG_PATH="${PATH}"
+SYSTEM_DIR="$(mktemp -d)"
+cat > "${SYSTEM_DIR}/node" <<'EOF'
+#!/bin/sh
+echo v0.0.0
+EOF
+chmod +x "${SYSTEM_DIR}/node"
+PATH="${SYSTEM_DIR}:${PATH}"
+export PATH
+
+EXPECTED_OUTPUT="$(command which node)"
+set +ex # since stderr is needed
+OUTPUT="$(nvm which default 2>&1)"
+set -ex
+[ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "Could not use system via alias for nvm which. Got >${OUTPUT}<, expected >${EXPECTED_OUTPUT}<"
+
+cleanup

test/fast/Listing versions/Running 'nvm ls default' should show system version when available

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+die () { echo "$@" ; cleanup ; exit 1; }
+cleanup () {
+  rm -f "$(nvm_alias_path)/default"
+  unset -f nvm_has_system_node node
+}
+
+\. ../../../nvm.sh
+\. ../../common.sh
+
+nvm_make_alias default system
+nvm_has_system_node() { return 0; }
+node() { command printf 'v0.0.0'; }
+
+OUTPUT="$(nvm ls default | strip_colors)"
+echo "${OUTPUT}" | command grep -q 'system' \
+  || die "Could not list system via alias. Got >${OUTPUT}<"
+echo "${OUTPUT}" | command grep -q 'v0.0.0' \
+  || die "Could not list system version via alias. Got >${OUTPUT}<"
+
+cleanup

test/fast/Listing versions/Running 'nvm ls' should display all installed versions

@@ -39,7 +39,13 @@ iojs-v0.10.2
 v0.12.9
 v0.12.87"
 if nvm_has_system_node || nvm_has_system_iojs; then
-  EXPECTED_OUTPUT="${EXPECTED_OUTPUT}
+  SYSTEM_VERSION="$(nvm deactivate >/dev/null 2>&1 && node -v 2>/dev/null)"
+  if [ -n "${SYSTEM_VERSION}" ]; then
+    EXPECTED_OUTPUT="${EXPECTED_OUTPUT}
+system ${SYSTEM_VERSION}"
+  else
+    EXPECTED_OUTPUT="${EXPECTED_OUTPUT}
 system"
+  fi
 fi
 [ "${OUTPUT-}" = "${EXPECTED_OUTPUT-}" ] || die "expected >${EXPECTED_OUTPUT}<; got >${OUTPUT}<"

test/fast/Listing versions/Running 'nvm ls' should not show a trailing slash

@@ -37,7 +37,13 @@ iojs-v0.10.2
 v0.12.9
 v0.12.87"
 if nvm_has_system_node || nvm_has_system_iojs; then
-  EXPECTED_OUTPUT="${EXPECTED_OUTPUT}
+  SYSTEM_VERSION="$(nvm deactivate >/dev/null 2>&1 && node -v 2>/dev/null)"
+  if [ -n "${SYSTEM_VERSION}" ]; then
+    EXPECTED_OUTPUT="${EXPECTED_OUTPUT}
+system ${SYSTEM_VERSION}"
+  else
+    EXPECTED_OUTPUT="${EXPECTED_OUTPUT}
 system"
+  fi
 fi
 [ "${OUTPUT-}" = "${EXPECTED_OUTPUT-}" ] || die "expected >${EXPECTED_OUTPUT}<; got >${OUTPUT}<"

test/fast/Running 'nvm uninstall' with an inferred version shows the inferred message

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+set -ex
+
+\. ../../nvm.sh
+\. ../common.sh
+
+VERSION='v0.0.1'
+PATTERN='0.0'
+
+mkdir -p "${NVM_DIR}/${VERSION}"
+
+set +ex # needed for stderr
+RETURN_MESSAGE="$(nvm uninstall "${PATTERN}" 2>&1 || echo)"
+set -ex
+EXPECTED_MESSAGE="Version '${VERSION}' (inferred from ${PATTERN}) is not installed."
+
+[ "${RETURN_MESSAGE}" = "${EXPECTED_MESSAGE}" ]

test/fast/Running 'nvm uninstall' with an uninstalled version shows the requested version

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+set -ex
+
+\. ../../nvm.sh
+\. ../common.sh
+
+set +ex # needed for stderr
+RETURN_MESSAGE="$(nvm uninstall 22 2>&1 || echo)"
+set -ex
+EXPECTED_MESSAGE="Version '22' is not installed."
+
+[ "${RETURN_MESSAGE}" = "${EXPECTED_MESSAGE}" ]

test/fast/Running 'nvm use' should respect alias pointing to system

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+set -ex
+
+die () { echo "$@" ; cleanup ; exit 1; }
+cleanup () {
+  rm -f "$(nvm_alias_path)/default"
+  if [ -n "${SYSTEM_DIR-}" ]; then
+    rm -rf "${SYSTEM_DIR}"
+  fi
+  if [ -n "${ORIG_PATH-}" ]; then
+    PATH="${ORIG_PATH}"
+  fi
+  unset -f nvm_print_npm_version
+}
+
+\. ../../nvm.sh
+
+nvm_make_alias default system
+
+ORIG_PATH="${PATH}"
+SYSTEM_VERSION="v0.0.0"
+SYSTEM_DIR="$(mktemp -d)"
+cat > "${SYSTEM_DIR}/node" <<EOF
+#!/bin/sh
+command printf '%s\n' "${SYSTEM_VERSION}"
+EOF
+chmod +x "${SYSTEM_DIR}/node"
+PATH="${SYSTEM_DIR}:${PATH}"
+nvm_print_npm_version() { command printf ' (npm v1.2.3)'; }
+
+EXPECTED_OUTPUT="Now using system version of node: ${SYSTEM_VERSION}$(nvm_print_npm_version)"
+set +ex # since stderr is needed
+OUTPUT="$(nvm use default 2>&1)"
+set -ex
+[ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "Could not use system via alias. Got >${OUTPUT}<, expected >${EXPECTED_OUTPUT}<"
+
+cleanup

test/fast/Running 'nvm use' should respect system in .nvmrc

@@ -0,0 +1,43 @@
+#!/bin/sh
+
+set -ex
+
+die () { echo "$@" ; cleanup ; exit 1; }
+cleanup () {
+  rm -f .nvmrc
+  if [ -f .nvmrc.orig ]; then
+    mv .nvmrc.orig .nvmrc
+  fi
+  if [ -n "${SYSTEM_DIR-}" ]; then
+    rm -rf "${SYSTEM_DIR}"
+  fi
+  if [ -n "${ORIG_PATH-}" ]; then
+    PATH="${ORIG_PATH}"
+  fi
+  unset -f nvm_print_npm_version
+}
+
+\. ../../nvm.sh
+
+if [ -f .nvmrc ]; then mv .nvmrc .nvmrc.orig; fi
+printf 'system\n' > .nvmrc
+ORIG_PATH="${PATH}"
+SYSTEM_VERSION="v0.0.0"
+SYSTEM_DIR="$(mktemp -d)"
+cat > "${SYSTEM_DIR}/node" <<EOF
+#!/bin/sh
+command printf '%s\n' "${SYSTEM_VERSION}"
+EOF
+chmod +x "${SYSTEM_DIR}/node"
+PATH="${SYSTEM_DIR}:${PATH}"
+nvm_print_npm_version() { command printf ' (npm v1.2.3)'; }
+
+NVMRC_PATH="${PWD}/.nvmrc"
+EXPECTED_OUTPUT="Found '${NVMRC_PATH}' with version <system>
+Now using system version of node: ${SYSTEM_VERSION}$(nvm_print_npm_version)"
+set +ex # since stderr is needed
+OUTPUT="$(nvm use 2>&1)"
+set -ex
+[ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "Could not use system via .nvmrc. Got >${OUTPUT}<, expected >${EXPECTED_OUTPUT}<"
+
+cleanup

test/fast/Running 'nvm-exec' should display required node version

@@ -5,7 +5,6 @@ set -x
 \. ../../nvm.sh
 
 cleanup() { rm -f .nvmrc; }
-
 die () { echo "$@" ; cleanup ; exit 1; }
 
 NVM_TEST_VERSION=v0.42

test/fast/Set Colors/nvm_print_default_alias calls nvm_get_colors

@@ -11,6 +11,8 @@ die () {
 
 set -e
 
+nvm_has_colors() { return 0; }
+
 nvm_get_colors(){
     echo "0;95m"
 }

test/fast/Set Colors/nvm_print_versions calls nvm_get_colors

@@ -22,6 +22,8 @@ if [ -n ${NVM_COLORS} ]; then
   unset NVM_COLORS
 fi
 
+nvm_has_colors() { return 0; }
+
 # default system color
 nvm use system
 OUTPUT=$(nvm_print_versions system)

test/fast/Unit tests/nvm ls-remote

@@ -33,6 +33,8 @@ printf '%s\n' "$(cat "${LTS_NAMES_PATH}" | tail -n +1)" | while IFS= read -r LTS
   cp "${NVM_DIR}/alias/lts-backup/${LTS}" "${NVM_DIR}/alias/lts/"
 done
 
+nvm_has_colors() { return 0; }
+
 nvm deactivate 2>/dev/null || die 'unable to deactivate'
 
 \. ../../common.sh
@@ -67,12 +69,14 @@ printf '%s\n' "${LTS_LIST}" | while IFS= read -r LTS; do
   INDEX=$(($INDEX + 1))
 done
 
+nvm_has_colors() { return 1; }
 OUTPUT="$(nvm ls-remote lts/ARGON 2>&1)"
 EXIT_CODE=$?
+nvm_has_colors() { return 0; }
 [ $EXIT_CODE -eq 3 ] || die "nvm ls-remote lts/ARGON did not exit 3, got '${EXIT_CODE}'"
 
 EXPECTED_OUTPUT="LTS names must be lowercase
-            N/A"
+            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"

test/fast/Unit tests/nvm_has_colors

@@ -0,0 +1,30 @@
+#!/bin/sh
+
+die () { echo "$@" ; exit 1; }
+
+: nvm.sh
+\. ../../../nvm.sh
+
+# nvm_has_colors should be false in command substitution (stdout is not a terminal)
+[ "$(nvm_has_colors; echo $?)" = "1" ] || die 'nvm_has_colors should be false in command substitution'
+
+# nvm_has_colors should be false when stdout goes to /dev/null
+! nvm_has_colors >/dev/null || die 'nvm_has_colors should be false when stdout goes to /dev/null'
+
+# nvm_has_colors should be false when stdout goes to a pipe
+(! nvm_has_colors || echo "boo!") | read && die 'nvm_has_colors should be false when stdout goes to a pipe'
+
+# nvm_has_colors should be false when NVM_NO_COLORS is set, even if stdout is a terminal
+if [ -t 1 ]; then
+  ! NVM_NO_COLORS="--no-colors" nvm_has_colors || die 'nvm_has_colors should be false when NVM_NO_COLORS is set'
+fi
+
+# nvm_has_colors should be true when stdout is a terminal and colors are supported
+if [ -t 1 ] && nvm_has tput && [ "$(command tput -T "${TERM:-vt100}" colors)" -ge 8 ]; then
+  nvm_has_colors || die 'nvm_has_colors should be true when stdout is a terminal with color support'
+fi
+
+# nvm_has_colors should be true when redirected to /dev/tty (if available)
+if (exec >/dev/tty) 2>/dev/null && nvm_has tput && [ "$(command tput -T "${TERM:-vt100}" colors)" -ge 8 ]; then
+  nvm_has_colors >/dev/tty || die 'nvm_has_colors should be true when stdout goes to /dev/tty'
+fi

test/fast/Unit tests/nvm_print_alias_path

@@ -39,7 +39,7 @@ nvm_version() {
 }
 
 OUTPUT="$(nvm_print_alias_path "$NVM_ALIAS_DIR" "$NVM_ALIAS_DIR/blah" | strip_colors)"
-EXPECTED_OUTPUT='blah -> "blah" (-> v"blah")'
+EXPECTED_OUTPUT='blah -> "blah" (-> v"blah" *)'
 [ "$OUTPUT" = "$EXPECTED_OUTPUT" ] || die "'nvm_print_alias_path \"\$NVM_ALIAS_DIR\" \"\$NVM_ALIAS_DIR/blah\"' should strip alias dir and print nvm_alias output; got '$OUTPUT', expected '$EXPECTED_OUTPUT'"
 
 cleanup

test/fast/Unit tests/nvm_print_default_alias

@@ -33,7 +33,7 @@ nvm_version() {
 }
 
 OUTPUT="$(nvm_print_default_alias blah | strip_colors)"
-EXPECTED_OUTPUT='blah -> "local-blah" (-> v"local-blah") (default)'
+EXPECTED_OUTPUT='blah -> "local-blah" (-> v"local-blah" *) (default)'
 [ "$OUTPUT" = "$EXPECTED_OUTPUT" ] || die "'nvm_print_default_alias blah' should strip alias dir and print nvm_print_implicit_alias output; got '$OUTPUT', expected '$EXPECTED_OUTPUT'"
 
 cleanup

test/fast/Unit tests/nvm_version

@@ -34,6 +34,9 @@ nvm_ls() {
 [ "_$(nvm_version node)" = "_pattern: stable" ] || die '"nvm_version node" did not pass "stable" to "nvm_ls"'
 [ "_$(nvm_version node-)" = "_pattern: stable" ] || die '"nvm_version node-" did not pass "stable" to "nvm_ls"'
 
+nvm_ls() { echo "system v20.0.0"; }
+[ "_$(nvm_version system)" = "_system" ] || die '"nvm_version system" did not return "system" when "nvm_ls" returns extra columns'
+
 nvm_ls() { echo "N/A"; }
 OUTPUT="$(nvm_version foo)"
 EXPECTED_OUTPUT="N/A"

test/fast/Unit tests/security_wget_injection

@@ -0,0 +1,65 @@
+#!/bin/sh
+
+# Security test to verify that NVM_AUTH_HEADER is sanitized in wget path
+# This test ensures that command injection attacks are prevented
+
+cleanup () {
+  unset -f die cleanup
+  rm -f /tmp/nvm_security_test_file 2>/dev/null || true
+}
+die () { echo "$@" ; cleanup ; exit 1; }
+
+\. ../../../nvm.sh
+
+set -ex
+
+# Skip test if wget is not available
+if ! nvm_has "wget"; then
+  echo "wget not available, skipping security test"
+  exit 0
+fi
+
+# Test 1: Verify that malicious command injection in NVM_AUTH_HEADER is sanitized
+# This should not execute the command, but should sanitize it
+MALICIOUS_HEADER="Bearer test-token; touch /tmp/nvm_security_test_file; echo malicious"
+NVM_AUTH_HEADER="${MALICIOUS_HEADER}" nvm_download "https://raw.githubusercontent.com/nvm-sh/nvm/HEAD/install.sh" >/dev/null 2>&1 || true
+
+# Verify that the malicious file was NOT created (sanitization worked)
+if [ -f /tmp/nvm_security_test_file ]; then
+  die "SECURITY FAILURE: Command injection succeeded! Malicious file was created."
+fi
+
+# Test 2: Verify that sanitized header still works for legitimate requests
+# The sanitized header should only contain safe characters
+SANITIZED=$(nvm_sanitize_auth_header "${MALICIOUS_HEADER}")
+# Verify that dangerous characters were removed
+case "${SANITIZED}" in
+  *";"*|*"touch"*|*"/tmp"*)
+    die "SECURITY FAILURE: Sanitization did not remove dangerous characters properly"
+    ;;
+esac
+
+# Test 3: Verify that legitimate header with safe characters still works
+LEGITIMATE_HEADER="Bearer test-token-123"
+NVM_AUTH_HEADER="${LEGITIMATE_HEADER}" nvm_download "https://raw.githubusercontent.com/nvm-sh/nvm/HEAD/install.sh" >/dev/null 2>&1 || true
+
+# Test 4: Test with backticks (command substitution)
+MALICIOUS_HEADER2="Bearer \`touch /tmp/nvm_security_test_file\`"
+NVM_AUTH_HEADER="${MALICIOUS_HEADER2}" nvm_download "https://raw.githubusercontent.com/nvm-sh/nvm/HEAD/install.sh" >/dev/null 2>&1 || true
+
+# Verify that the malicious file was NOT created
+if [ -f /tmp/nvm_security_test_file ]; then
+  die "SECURITY FAILURE: Command injection with backticks succeeded! Malicious file was created."
+fi
+
+# Test 5: Test with $(command substitution)
+MALICIOUS_HEADER3="Bearer \$(touch /tmp/nvm_security_test_file)"
+NVM_AUTH_HEADER="${MALICIOUS_HEADER3}" nvm_download "https://raw.githubusercontent.com/nvm-sh/nvm/HEAD/install.sh" >/dev/null 2>&1 || true
+
+# Verify that the malicious file was NOT created
+if [ -f /tmp/nvm_security_test_file ]; then
+  die "SECURITY FAILURE: Command injection with \$() succeeded! Malicious file was created."
+fi
+
+cleanup
+echo "All security tests passed: Command injection attacks are properly sanitized"

test/sourcing/Sourcing nvm.sh should use the default if available and no nvm node is loaded

@@ -24,5 +24,10 @@ NVM_LS_CURRENT="$(nvm ls current | strip_colors | \grep -o v0.10.1)"
 # NVM_LS_CURRENT_COLORED="$(nvm ls current | sed -n l)"
 
 NVM_ALIAS_DEFAULT="$(nvm alias default | strip_colors)"
-[ "_${NVM_ALIAS_DEFAULT}" = "_default -> 0.10.1 (-> v0.10.1)" ] \
-  || die "'nvm alias default did not return 'default -> 0.10.1 (-> v0.10.1)', got '${NVM_ALIAS_DEFAULT}'"
+[ "_${NVM_ALIAS_DEFAULT}" = "_default -> 0.10.1 (-> v0.10.1 *)" ] \
+  || die "'nvm alias default' without colors did not return 'default -> 0.10.1 (-> v0.10.1 *)', got '${NVM_ALIAS_DEFAULT}'"
+
+nvm_has_colors() { return 0; }
+NVM_ALIAS_DEFAULT_STRIPPED="$(nvm alias default | strip_colors)"
+[ "_${NVM_ALIAS_DEFAULT_STRIPPED}" = "_default -> 0.10.1 (-> v0.10.1)" ] \
+  || die "'nvm alias default' with colors stripped did not return 'default -> 0.10.1 (-> v0.10.1)', got '${NVM_ALIAS_DEFAULT_STRIPPED}'"

test/sourcing/Sourcing nvm.sh with --install should install the default

@@ -33,5 +33,10 @@ NVM_LS_CURRENT="$(nvm ls current | strip_colors | command grep -o v0.10.2)"
 [ "_$NVM_LS_CURRENT" = '_v0.10.2' ] || die "'nvm ls current' did not return '-> v0.10.2', >${NVM_LS_CURRENT}<\n$(nvm_ls)"
 
 NVM_ALIAS_DEFAULT="$(nvm alias default | strip_colors)"
-[ "_$NVM_ALIAS_DEFAULT" = "_default -> 0.10.2 (-> v0.10.2)" ] \
-  || die "'nvm alias default did not return 'default -> 0.10.2 (-> v0.10.2)', got >${NVM_ALIAS_DEFAULT}<\n$(nvm_ls)"
+[ "_$NVM_ALIAS_DEFAULT" = "_default -> 0.10.2 (-> v0.10.2 *)" ] \
+  || die "'nvm alias default' without colors did not return 'default -> 0.10.2 (-> v0.10.2 *)', got >${NVM_ALIAS_DEFAULT}<\n$(nvm_ls)"
+
+nvm_has_colors() { return 0; }
+NVM_ALIAS_DEFAULT_STRIPPED="$(nvm alias default | strip_colors)"
+[ "_$NVM_ALIAS_DEFAULT_STRIPPED" = "_default -> 0.10.2 (-> v0.10.2)" ] \
+  || die "'nvm alias default' with colors stripped did not return 'default -> 0.10.2 (-> v0.10.2)', got >${NVM_ALIAS_DEFAULT_STRIPPED}<\n$(nvm_ls)"