Initial plan

2026-07-19 21:38:24 +08:00 · 2026-07-02 17:33:13 +00:00
56 changed files with 199 additions and 1456 deletions
@@ -107,35 +107,3 @@ Additionally, the maintainer of a third-party dependency might introduce a vulne
 **Recommendation**: Third-party libraries should be kept up-to-date, applying patches to address publicly known vulnerabilities in a timely fashion.
 Monitoring and logging capabilities should also be in place to detect and respond to potential attacks.
 SLSA compliance may also be considered for further supply chain security hardening.
 ## Trust boundary: mirror payloads vs. mirror metadata
 `nvm` fetches two very different kinds of data from a Node.js/io.js mirror (`nodejs.org`/`iojs.org` by default, or whatever `$NVM_NODEJS_ORG_MIRROR` and `$NVM_IOJS_ORG_MIRROR` point at), and they sit on opposite sides of a trust boundary:
  - **Payloads** — the Node.js/io.js binaries and source tarballs that `nvm install` downloads, unpacks, compiles (for source installs), and runs.
  - **Metadata** — everything `nvm` parses *about* those payloads rather than executing: the `index.tab` version list (including each release's LTS codename), and the `SHASUMS`/`SHASUMS256` checksum files.
 Conflating the two leads to mis-scoped reports, so the project draws the line explicitly.
 ### Payloads are trusted, by construction
 The entire purpose of `nvm` is to download a mirror's build of Node.js and run it.
 A mirror that serves a backdoored binary has arbitrary code execution the moment you `nvm install` and invoke `node`, and no validation inside `nvm` can prevent that - you have chosen to execute that code.
 Installing from source (`nvm install -s`) is if anything more direct: the mirror-supplied source tarball is unpacked and its `configure`/`make` build runs arbitrary code on your machine *at install time*, before `node` is ever invoked.
 Checksum verification protects **integrity** (a corrupted or truncated download, or a network intermediary that cannot also forge the same-origin `SHASUMS`), not **authenticity** against the mirror itself, since the checksums come from the same origin as the payload.
 Selecting a mirror is therefore equivalent to selecting whom you trust for arbitrary code execution in your account.
 A malicious payload from the configured mirror is consequently **out of scope**: no privilege boundary is crossed, so there is no privilege to escalate.
 ### Metadata is not trusted
 Parsing a version list is a pure data operation.
 A user who runs `nvm ls-remote` to browse available versions - and installs nothing - has not opted into running any code from the mirror.
 Metadata can also be attacker-controlled with no mirror misconfiguration at all, via a compromised mirror/CDN or a man-in-the-middle of the channel (see *Threat ID 3*), so it is treated as hostile input.
 The invariant `nvm` maintains is:
 > Mirror-supplied metadata must never reach a shell/command evaluator, an `awk`/`sed` program body, or an unvalidated filesystem path (see *Threat ID 2*).
 This is why version strings from `index.tab` are passed to the downloader as literal `argv` elements rather than re-parsed by the shell ([CVE-2026-10796](https://github.com/advisories/GHSA-3c52-35h2-gfmm), [CVE-2026-1665](https://github.com/advisories/GHSA-4fc5-r4vr-8rp7)); why checksum comparisons pass the mirror's values as `awk -v` **data** and never as program text; and why LTS codenames are constrained to safe alias filenames before naming a file under `$NVM_DIR/alias/lts`, so a hostile codename such as `../../../.bashrc` cannot traverse out of the alias directory.
 The point is not that metadata is "more dangerous" than a payload — a trusted payload can obviously do anything.
 It is that metadata carries **no** implied grant of code execution, so any code-execution or arbitrary-write primitive reachable purely by parsing it is a defect worth removing on its own merits, independent of how much the payload channel is trusted.
@@ -71,29 +71,11 @@ jobs:
      - name: check tests filenames
        run: ./rename_test.sh --check
  check_exec:
    runs-on: ubuntu-latest
    steps:
      - uses: step-security/harden-runner@v2
        with:
          allowed-endpoints:
            github.com:443
            raw.githubusercontent.com:443
            nodejs.org:443
            registry.npmjs.org:443
      - uses: actions/checkout@v6
      - uses: ljharb/actions/node/install@main
        name: 'nvm install lts/* && npm install'
        with:
          node-version: 'lts/*'
      - name: check that test files are executable
        run: npm run test:check-exec
  all:
    permissions:
      contents: none
    name: 'all linting'
-    needs: [eclint, dockerfile_lint, doctoc, test_naming, check_exec]
+    needs: [eclint, dockerfile_lint, doctoc, test_naming]
    runs-on: ubuntu-latest
    steps:
      - run: true
@@ -49,6 +49,7 @@ jobs:
      contents: read
    needs: [matrix]
    runs-on: ubuntu-latest
    continue-on-error: ${{ matrix.ref == 'v0.40.0' }} # https://github.com/nvm-sh/nvm/issues/3405
    strategy:
      fail-fast: false
      matrix:
@@ -80,19 +81,12 @@ jobs:
          set -e
          export NVM_INSTALL_VERSION="${ref}"
          curl -o- "https://raw.githubusercontent.com/nvm-sh/nvm/${ref}/install.sh" | bash
      # v0.40.0 with an .nvmrc present is expected to fail (https://github.com/nvm-sh/nvm/issues/3405):
      # the steps below tolerate failure for that combination, and the final step
      # turns the job red only if the expected failure did NOT happen.
      - name: nvm --version
        id: nvm-version
        continue-on-error: ${{ matrix.ref == 'v0.40.0' && matrix.has-nvmrc == 'nvmrc' }}
        run: |
          set +e
          . $NVM_DIR/nvm.sh && nvm --version
      - name: nvm install in 1 shell level, ${{ matrix.has-nvmrc }}
        id: install-1
        if: ${{ matrix.shell-level == '1 shlvl' }}
        continue-on-error: ${{ matrix.ref == 'v0.40.0' && matrix.has-nvmrc == 'nvmrc' }}
        run: |
          set -ex
          . $NVM_DIR/nvm.sh
@@ -102,29 +96,13 @@ jobs:
            nvm install
          fi
      - name: nvm install in 2 shell levels, ${{ matrix.has-nvmrc }}
        id: install-2
        if: ${{ matrix.shell-level == '2 shlvls' }}
        continue-on-error: ${{ matrix.ref == 'v0.40.0' && matrix.has-nvmrc == 'nvmrc' }}
        run: |
          if [ '${{ matrix.has-nvmrc }}' == 'nvmrc' ]; then
            bash -c "set -ex && . $NVM_DIR/nvm.sh && echo nvm.sh sourced && nvm --version && nvm install"
          else
            bash -c "set -ex && . $NVM_DIR/nvm.sh && echo nvm.sh sourced && nvm --version"
          fi
      - name: 'confirm the expected failure happened (v0.40.0 + nvmrc)'
        if: ${{ matrix.ref == 'v0.40.0' && matrix.has-nvmrc == 'nvmrc' }}
        env:
          SOURCE_OUTCOME: ${{ steps.nvm-version.outcome }}
          INSTALL_1_OUTCOME: ${{ steps.install-1.outcome }}
          INSTALL_2_OUTCOME: ${{ steps.install-2.outcome }}
        run: |
          echo "nvm --version: ${SOURCE_OUTCOME}; install (1 shlvl): ${INSTALL_1_OUTCOME}; install (2 shlvls): ${INSTALL_2_OUTCOME}"
          if [ "${SOURCE_OUTCOME}" = 'failure' ] || [ "${INSTALL_1_OUTCOME}" = 'failure' ] || [ "${INSTALL_2_OUTCOME}" = 'failure' ]; then
            echo 'v0.40.0 failed as expected: https://github.com/nvm-sh/nvm/issues/3405'
          else
            echo '::error::v0.40.0 with an .nvmrc was expected to fail (https://github.com/nvm-sh/nvm/issues/3405), but every step succeeded. If v0.40.0 somehow works now, remove the expected-failure handling from this workflow.'
            exit 1
          fi
  finisher:
    permissions:
@@ -1,193 +0,0 @@
 name: 'Tests: alpine'
 on: [push, pull_request]
 permissions:
  contents: read
 jobs:
  fast:
    permissions:
      contents: read
    # Native runners per arch (no QEMU): arm64 uses the ubuntu-24.04-arm image.
    name: 'fast ${{ matrix.arch }} (alpine ${{ matrix.alpine }}, ${{ matrix.shell }})'
    runs-on: ${{ matrix.arch == 'arm64' && 'ubuntu-24.04-arm' || 'ubuntu-latest' }}
    strategy:
      fail-fast: false
      matrix:
        alpine:
          - '3.15'
          - '3.19'
          - '3'
        arch:
          - x64
          - arm64
        shell:
          - sh
          - bash
          - dash
          - zsh
          # - ksh (#574)
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@v2
        with:
          allowed-endpoints:
            github.com:443
            registry.npmjs.org:443
            raw.githubusercontent.com:443
            nodejs.org:443
            iojs.org:443
            unofficial-builds.nodejs.org:443
            dl-cdn.alpinelinux.org:443
            dl-cdn.alpinelinux.org:80
            registry-1.docker.io:443
            auth.docker.io:443
            production.cloudflare.docker.com:443
            production.cloudfront.docker.com:443
      - uses: actions/checkout@v6
        id: checkout
        continue-on-error: true
        with:
          submodules: true
      - name: 'nvmrc submodule fallback (forks without their own nvmrc)'
        if: steps.checkout.outcome == 'failure'
        shell: bash
        run: |
          git submodule set-url test/fixtures/nvmrc https://github.com/nvm-sh/nvmrc.git
          git submodule sync --recursive
          git submodule update --init --recursive
      - uses: ljharb/actions/node/install@main
        name: 'npm install (on host; node_modules is mounted into the container)'
        with:
          node-version: 'lts/*'
          skip-ls-check: true
      - run: npm ls urchin
      - name: 'Run fast tests on Alpine ${{ matrix.alpine }} (${{ matrix.arch }})'
        run: |
          for i in 1 2 3 4 5; do
            docker pull alpine:${{ matrix.alpine }} && break
            echo "docker pull failed, attempt $i/5"; sleep $((i * 5))
          done
          docker run --rm \
            -v "${{ github.workspace }}:/workspace" \
            -w /workspace \
            -e "TEST_SHELL=${{ matrix.shell }}" \
            -e "TERM=xterm-256color" \
            -e "GITHUB_ACTIONS=true" \
            alpine:${{ matrix.alpine }} \
            sh -c '
              set -ex
              cat /etc/alpine-release; uname -m
              for i in 1 2 3 4 5; do
                apk add --no-cache \
                  make bash zsh dash \
                  grep sed gawk coreutils util-linux findutils ncurses \
                  curl wget ca-certificates openssl tar xz gzip git \
                  sudo su-exec libstdc++ libgcc && break
                echo "apk add failed, attempt $i/5"; sleep $((i * 5))
              done
              # Mirror the ubuntu runner: run the suite as a non-root user with
              # passwordless sudo and a PTY so the permission/terminal tests
              # behave the same. The user takes the mounted checkout uid so
              # files stay host-owned (no chown; post-checkout cleanup works).
              # No node is installed, so no active version skews the output.
              HOST_UID="$(stat -c %u /workspace)"
              adduser -D -u "$HOST_UID" tester 2>/dev/null || adduser -D tester
              echo "tester ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/tester
              chmod 0440 /etc/sudoers.d/tester
              export NVM_DIR=/workspace HOME=/home/tester
              unset NVM_BIN NVM_INC NVM_CD_FLAGS
              su-exec tester script -q -e -c "make TEST_SUITE=fast SHELL=$TEST_SHELL URCHIN=/workspace/node_modules/.bin/urchin test-$TEST_SHELL" /dev/null
            '
  musl-binary:
    permissions:
      contents: read
    # Regression lock, same-era diagonal only: modern musl node needs a newer
    # libstdc++ than old Alpine ships, and arm64-musl exists only from
    # v20.20.1/v22.21.1/v24.9.0 (built on modern Alpine), so arm64 pins modern Alpine.
    name: 'musl-binary ${{ matrix.arch }} (alpine ${{ matrix.alpine }}, node ${{ matrix.node }})'
    runs-on: ${{ matrix.arch == 'arm64' && 'ubuntu-24.04-arm' || 'ubuntu-latest' }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - { arch: x64, alpine: '3.10', node: v8.17.0 }
          - { arch: x64, alpine: '3.10', node: v10.24.1 }
          - { arch: x64, alpine: '3.12', node: v12.22.12 }
          - { arch: x64, alpine: '3.15', node: v14.21.3 }
          - { arch: x64, alpine: '3.16', node: v16.20.2 }
          - { arch: x64, alpine: '3.18', node: v18.20.4 }
          - { arch: x64, alpine: '3.20', node: v20.18.1 }
          - { arch: x64, alpine: '3', node: v22.12.0 }
          - { arch: arm64, alpine: '3.20', node: v20.20.1 }
          - { arch: arm64, alpine: '3', node: v22.21.1 }
          - { arch: arm64, alpine: '3', node: v24.9.0 }
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@v2
        with:
          allowed-endpoints:
            github.com:443
            registry.npmjs.org:443
            unofficial-builds.nodejs.org:443
            dl-cdn.alpinelinux.org:443
            dl-cdn.alpinelinux.org:80
            registry-1.docker.io:443
            auth.docker.io:443
            production.cloudflare.docker.com:443
            production.cloudfront.docker.com:443
      - uses: actions/checkout@v6
        with:
          submodules: false
      - name: 'Install node ${{ matrix.node }} from a musl binary on Alpine ${{ matrix.alpine }}'
        run: |
          for i in 1 2 3 4 5; do
            docker pull alpine:${{ matrix.alpine }} && break
            echo "docker pull failed, attempt $i/5"; sleep $((i * 5))
          done
          docker run --rm \
            -v "${{ github.workspace }}:/workspace" \
            -w /workspace \
            -e "NODE_VERSION=${{ matrix.node }}" \
            -e "TERM=xterm-256color" \
            alpine:${{ matrix.alpine }} \
            sh -c '
              set -ex
              cat /etc/alpine-release; uname -m
              # libstdc++/libgcc are load-bearing: the unofficial musl node
              # binary dynamically links them. No build toolchain: -b forbids
              # the source fallback, so a missing binary is a hard failure.
              for i in 1 2 3 4 5; do
                apk add --no-cache \
                  bash ca-certificates curl wget tar xz gzip \
                  grep sed coreutils libstdc++ libgcc && break
                echo "apk add failed, attempt $i/5"; sleep $((i * 5))
              done
              export NVM_DIR=/workspace
              unset NVM_BIN NVM_INC NVM_CD_FLAGS
              # The default nodejs.org mirror serves no -musl artifacts; this one does.
              export NVM_NODEJS_ORG_MIRROR=https://unofficial-builds.nodejs.org/download/release
              . /workspace/nvm.sh --no-use
              nvm install -b --skip-default-packages "$NODE_VERSION"
              nvm use "$NODE_VERSION"
              [ "$(node -v)" = "$NODE_VERSION" ] || { echo "version mismatch: $(node -v)"; exit 1; }
              node -e "process.exit(0)"
              ldd "$(command -v node)" | grep -qi musl
            '
  all:
    permissions:
      contents: none
    name: 'all alpine tests'
    needs: [fast, musl-binary]
    runs-on: ubuntu-latest
    steps:
      - run: true
@@ -98,45 +98,11 @@ jobs:
        run: sudo apt-get install curl -y
        shell: bash
  installation_iojs_source_compile:
    permissions:
      contents: read
    name: 'actually compile io.js from source (gcc 4.9 container)'
    runs-on: ubuntu-latest
    timeout-minutes: 60
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@v2
        with:
          allowed-endpoints:
            github.com:443
            mirror.gcr.io:443
            storage.googleapis.com:443
            iojs.org:443
      - uses: actions/checkout@v6
      # io.js requires python 2 and gcc <= 5 to compile; the gcc:4.9 image
      # (debian jessie) has both, plus curl/wget/xz and CA certificates that
      # still validate iojs.org - so the source-install tests run unmodified,
      # resolving, downloading, checksumming, and compiling for real.
      # The image is pulled through Google's Docker Hub mirror: it serves
      # manifests and blobs from a single stable hostname (Docker Hub's blob
      # CDN hostnames rotate, which the blocked-egress policy can not allow),
      # and it is not subject to Docker Hub's anonymous pull rate limits.
      - name: compile io.js from source, for real
        run: |
          docker run --rm -v "${PWD}:/nvm-under-test" -e NVM_DIR=/nvm-under-test mirror.gcr.io/library/gcc:4.9 bash -ec '
            cd "${NVM_DIR}/test/installation_iojs"
            sh "./install from source"
            sh "./install version specified in .nvmrc from source"
          '
  all:
    permissions:
      contents: none
    name: 'all installation_iojs tests'
-    needs: [installation_iojs_without_curl, installation_iojs_source_compile]
+    needs: [installation_iojs_without_curl]
    runs-on: ubuntu-latest
    steps:
      - run: true
@@ -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-v0.40.6-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-v0.40.5-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 -->
@@ -106,10 +106,10 @@ 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/v0.40.6/install.sh | bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/install.sh | bash
 ```
 ```sh
-wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.6/install.sh | bash
+wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/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 `$PROFILE` env var to the profile file’s path, and then rerun the installation script.
@@ -136,7 +136,7 @@ Eg: `curl ... | NVM_DIR="path/to/nvm"`. Ensure that the `NVM_DIR` does not conta
 - The installer can use `git`, `curl`, or `wget` to download `nvm`, whichever is available.
- You can instruct the installer to not edit your shell config (for example if you already get completions via a [zsh nvm plugin](https://github.com/ohmyzsh/ohmyzsh/tree/master/plugins/nvm)) by setting `PROFILE=/dev/null` before running the `install.sh` script. Here's an example one-line command to do that: `PROFILE=/dev/null bash -c 'curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.6/install.sh | bash'`
+- You can instruct the installer to not edit your shell config (for example if you already get completions via a [zsh nvm plugin](https://github.com/ohmyzsh/ohmyzsh/tree/master/plugins/nvm)) by setting `PROFILE=/dev/null` before running the `install.sh` script. Here's an example one-line command to do that: `PROFILE=/dev/null bash -c 'curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/install.sh | bash'`
 #### Installing in Docker
@@ -152,7 +152,7 @@ RUN touch "${BASH_ENV}"
 RUN echo '. "${BASH_ENV}"' >> ~/.bashrc
 # Download and install nvm
-RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.6/install.sh | PROFILE="${BASH_ENV}" bash
+RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/install.sh | PROFILE="${BASH_ENV}" bash
 RUN echo node > .nvmrc
 RUN nvm install
 ```
@@ -170,7 +170,7 @@ ARG NODE_VERSION=20
 RUN apt update && apt install curl -y
 # install nvm
-RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.6/install.sh | bash
+RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/install.sh | bash
 # set env
 ENV NVM_DIR=/root/.nvm
@@ -196,7 +196,7 @@ After creation of the image you can start container interactively and run comman
 docker run --rm -it nvmimage
 root@0a6b5a237c14:/# nvm -v
-0.40.6
+0.40.5
 root@0a6b5a237c14:/# node -v
 v19.9.0
@@ -259,7 +259,7 @@ You can use a task:
 ```yaml
 - name: Install nvm
  ansible.builtin.shell: >
-    curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.6/install.sh | bash
+    curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/install.sh | bash
  args:
    creates: "{{ ansible_env.HOME }}/.nvm/nvm.sh"
 ```
@@ -321,7 +321,7 @@ 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 v0.40.6`
+1. `cd ~/.nvm` and check out the latest version with `git checkout v0.40.5`
 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:
@@ -958,13 +958,13 @@ 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/v0.40.6/install.sh | bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/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/v0.40.6/install.sh | bash
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/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._
@@ -998,13 +998,13 @@ export NVM_DIR="$HOME/.nvm"
 ## Docker For Development Environment
-To make development and testing work easier we supply a Dockerfile for development usage. It's based on an Ubuntu base image prepared with essential and useful tools for `nvm` development. To build the docker image of the environment, do a Docker build at the root of `nvm` repository:
+To make the development and testing work easier, we have a Dockerfile for development usage, which is based on Ubuntu 18.04 base image, prepared with essential and useful tools for `nvm` development, to build the docker image of the environment, run the docker command at the root of `nvm` repository:
 ```sh
 $ docker build -t nvm-dev .
 ```
-This will package your current nvm working copy with our pre-defined development environment into a Docker image named `nvm-dev`. After the build you should see it appear in the list of images:
+This will package your current nvm repository with our pre-defined development environment into a docker image named `nvm-dev`, once it's built with success, validate your image via `docker images`:
 ```sh
 $ docker images
@@ -1013,7 +1013,7 @@ REPOSITORY         TAG                 IMAGE ID            CREATED             S
 nvm-dev            latest              9ca4c57a97d8        7 days ago          650 MB
 ```
-To start and enter a container based on this image:
+If you got no error message, now you can easily involve in:
 ```sh
 $ docker run -h nvm-dev -it nvm-dev
@@ -1021,9 +1021,12 @@ $ docker run -h nvm-dev -it nvm-dev
 nvm@nvm-dev:~/.nvm$
 ```
-It takes several minutes to build the image and the image size is about 650MB, so it's not suitable for production usage.
+Please note that it'll take about 8 minutes to build the image and the image size would be about 650MB, so it's not suitable for production usage.
-For more information and documentation about Docker, please refer to its [official website][docker-www] and [documentation][docker-docs]:
+For more information and documentation about docker, please refer to its official website:
  - https://www.docker.com/
  - https://docs.docker.com/
 ## Problems
@@ -1064,9 +1067,9 @@ 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/v0.40.6/install.sh
+[2]: https://github.com/nvm-sh/nvm/blob/v0.40.5/install.sh
 [3]: https://github.com/nvm-sh/nvm/actions/workflows/tests-fast.yml
-[4]: https://github.com/nvm-sh/nvm/releases/tag/v0.40.6
+[4]: https://github.com/nvm-sh/nvm/releases/tag/v0.40.5
 [Urchin]: https://git.sdf.org/tlevine/urchin
 [Fish]: https://fishshell.com
@@ -1124,7 +1127,7 @@ 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-90.40.676)
+  For more details, see [this issue](https://github.com/nodejs/node/issues/39313) and [this comment](https://github.com/nodejs/node/issues/39313#issuecomment-90.40.576)
 - Exit back to your native shell.
@@ -1151,7 +1154,7 @@ 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/v0.40.6/install.sh | bash
+  curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.5/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
@@ -1186,7 +1189,7 @@ Currently, the sole maintainer is [@ljharb](https://github.com/ljharb) - more ma
 ## Project Support
-Only the latest version (v0.40.6 at this time) is supported.
+Only the latest version (v0.40.5 at this time) is supported.
 ## Enterprise Support
@@ -1202,7 +1205,3 @@ See [LICENSE.md](./LICENSE.md).
 Copyright [OpenJS Foundation](https://openjsf.org) and `nvm` contributors. All rights reserved. The [OpenJS Foundation](https://openjsf.org) has registered trademarks and uses trademarks.  For a list of trademarks of the [OpenJS Foundation](https://openjsf.org), please see our [Trademark Policy](https://trademark-policy.openjsf.org/) and [Trademark List](https://trademark-list.openjsf.org/).  Trademarks and logos not indicated on the [list of OpenJS Foundation trademarks](https://trademark-list.openjsf.org) are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
 [The OpenJS Foundation](https://openjsf.org/) | [Terms of Use](https://terms-of-use.openjsf.org/) | [Privacy Policy](https://privacy-policy.openjsf.org/) | [Bylaws](https://bylaws.openjsf.org/) | [Code of Conduct](https://code-of-conduct.openjsf.org) | [Trademark Policy](https://trademark-policy.openjsf.org/) | [Trademark List](https://trademark-list.openjsf.org/) | [Cookie Policy](https://www.linuxfoundation.org/cookies/)
 <!-------------------------------------------------------------------->
 [docker-docs]: https://docs.docker.com/
 [docker-www]: https://www.docker.com/
@@ -6,18 +6,6 @@ nvm_has() {
  type "$1" > /dev/null 2>&1
 }
 # resolves like `command "${1}"` does: only executables on the PATH,
 # ignoring shell functions and aliases
 nvm_has_executable() {
  (
    # `|| true` so that shells with errexit-style options (eg, zsh's ERR_RETURN)
    # do not abort the subshell when the name is not an alias or a function
    unalias "${1-}" 2>/dev/null || true
    unset -f "${1-}" 2>/dev/null || true
    command -v "${1-}" > /dev/null 2>&1
  )
 }
 nvm_echo() {
  command printf %s\\n "$*" 2>/dev/null
 }
@@ -45,7 +33,7 @@ nvm_install_dir() {
 }
 nvm_latest_version() {
-  nvm_echo "v0.40.6"
+  nvm_echo "v0.40.5"
 }
 nvm_profile_is_bash_or_zsh() {
@@ -117,9 +105,9 @@ nvm_node_version() {
 }
 nvm_download() {
-  if nvm_has_executable "curl"; then
+  if nvm_has "curl"; then
-    command curl --fail --compressed -q "$@"
+    curl --fail --compressed -q "$@"
-  elif nvm_has_executable "wget"; then
+  elif nvm_has "wget"; then
    # Emulate curl with wget
    ARGS=$(nvm_echo "$@" | command sed -e 's/--progress-bar /--progress=bar /' \
                            -e 's/--compressed //' \
@@ -131,7 +119,7 @@ nvm_download() {
                            -e 's/-o /-O /' \
                            -e 's/-C - /-c /')
    # shellcheck disable=SC2086
-    eval command wget $ARGS
+    eval wget $ARGS
  fi
 }
@@ -413,7 +401,7 @@ nvm_do_install() {
    # Autodetect install method
    if nvm_has git; then
      install_nvm_from_git
-    elif nvm_has_executable curl || nvm_has_executable wget; then
+    elif nvm_has curl || nvm_has wget; then
      install_nvm_as_script
    else
      nvm_echo >&2 'You need git, curl, or wget to install nvm'
@@ -426,7 +414,7 @@ nvm_do_install() {
    fi
    install_nvm_from_git
  elif [ "${METHOD}" = 'script' ]; then
-    if ! nvm_has_executable curl && ! nvm_has_executable wget; then
+    if ! nvm_has curl && ! nvm_has wget; then
      nvm_echo >&2 "You need curl or wget to install nvm"
      exit 1
    fi
@@ -508,7 +496,7 @@ nvm_do_install() {
 # during the execution of the install script
 #
 nvm_reset() {
-  unset -f nvm_has nvm_has_executable nvm_install_dir nvm_latest_version nvm_profile_is_bash_or_zsh \
+  unset -f nvm_has nvm_install_dir nvm_latest_version nvm_profile_is_bash_or_zsh \
    nvm_source nvm_node_version nvm_download install_nvm_from_git nvm_install_node \
    install_nvm_as_script nvm_try_profile nvm_detect_profile nvm_check_global_modules \
    nvm_do_install nvm_reset nvm_default_install_dir nvm_grep
@@ -11,7 +11,7 @@
 { # this ensures the entire script is downloaded #
 # shellcheck disable=SC3028
-NVM_SCRIPT_SOURCE="${_:-}"
+NVM_SCRIPT_SOURCE="$_"
 nvm_is_zsh() {
  [ -n "${ZSH_VERSION-}" ]
@@ -49,18 +49,6 @@ nvm_has() {
  type "${1-}" >/dev/null 2>&1
 }
 # resolves like `command "${1}"` does: only executables on the PATH,
 # ignoring shell functions and aliases
 nvm_has_executable() {
  (
    # `|| true` so that shells with errexit-style options (eg, zsh's ERR_RETURN)
    # do not abort the subshell when the name is not an alias or a function
    unalias "${1-}" 2>/dev/null || true
    unset -f "${1-}" 2>/dev/null || true
    command -v "${1-}" >/dev/null 2>&1
  )
 }
 nvm_has_non_aliased() {
  nvm_has "${1-}" && ! nvm_is_alias "${1-}"
 }
@@ -99,7 +87,7 @@ nvm_has_colors() {
 }
 nvm_curl_libz_support() {
-  command curl -V 2>/dev/null | nvm_grep "^Features:" | nvm_grep -q "libz"
+  curl -V 2>/dev/null | nvm_grep "^Features:" | nvm_grep -q "libz"
 }
 nvm_curl_use_compression() {
@@ -109,13 +97,13 @@ nvm_curl_use_compression() {
 nvm_get_latest() {
  local NVM_LATEST_URL
  local CURL_COMPRESSED_FLAG
-  if nvm_has_executable "curl"; then
+  if nvm_has "curl"; then
    if nvm_curl_use_compression; then
      CURL_COMPRESSED_FLAG="--compressed"
    fi
-    NVM_LATEST_URL="$(command curl ${CURL_COMPRESSED_FLAG:-} -q -w "%{url_effective}\\n" -L -s -S https://latest.nvm.sh -o /dev/null)"
+    NVM_LATEST_URL="$(curl ${CURL_COMPRESSED_FLAG:-} -q -w "%{url_effective}\\n" -L -s -S https://latest.nvm.sh -o /dev/null)"
-  elif nvm_has_executable "wget"; then
+  elif nvm_has "wget"; then
-    NVM_LATEST_URL="$(command wget -q https://latest.nvm.sh --server-response -O /dev/null 2>&1 | command awk '/^  Location: /{DEST=$2} END{ print DEST }')"
+    NVM_LATEST_URL="$(wget -q https://latest.nvm.sh --server-response -O /dev/null 2>&1 | command awk '/^  Location: /{DEST=$2} END{ print DEST }')"
  else
    nvm_err 'nvm needs curl or wget to proceed.'
    return 1
@@ -139,13 +127,13 @@ nvm_download() {
  local NVM_DOWNLOADER
  NVM_DOWNLOADER=''
-  if nvm_has_executable "curl"; then
+  if nvm_has "curl"; then
    NVM_DOWNLOADER='curl'
    set -- -q --fail "$@"
    if nvm_curl_use_compression; then
      set -- --compressed "$@"
    fi
-  elif nvm_has_executable "wget"; then
+  elif nvm_has "wget"; then
    NVM_DOWNLOADER='wget'
    # Emulate curl with wget
    local NVM_DOWNLOAD_WGET_COUNT
@@ -182,17 +170,12 @@ nvm_download() {
    set -- "$@" --header "Authorization: ${sanitized_header}"
  fi
-  command "${NVM_DOWNLOADER}" "$@"
+  "${NVM_DOWNLOADER}" "$@"
 }
 nvm_sanitize_auth_header() {
-    # Remove potentially dangerous characters; allow the full base64 (A-Za-z0-9+/=)
+    # Remove potentially dangerous characters
-    # and base64url (A-Za-z0-9-_=) charsets, plus the space, colon, dot, and
+    nvm_echo "$1" | command sed 's/[^a-zA-Z0-9:;_. -]//g'
    # underscore the previous allowlist already permitted, so that values like
    # `Basic <base64>` and `Bearer <token>` survive intact.
    # token68's '~' is still stripped.
    # Note: '-' must be at the end of the bracket expression to be treated as a literal.
    nvm_echo "$1" | command sed 's/[^a-zA-Z0-9 :_.+/=-]//g'
 }
 nvm_has_system_node() {
@@ -565,12 +548,12 @@ ${1}"
 $(nvm_wrap_with_color_code 'y' "${warn_text}")"
 }
-nvm_process_nvmrc_content() {
+nvm_process_nvmrc() {
-  local NVMRC_CONTENT
+  local NVMRC_PATH
-  NVMRC_CONTENT="${1-}"
+  NVMRC_PATH="$1"
  local lines
-  lines=$(nvm_echo "${NVMRC_CONTENT}" | command sed 's/#.*//' | command sed 's/^[[:space:]]*//;s/[[:space:]]*$//' | nvm_grep -v '^$')
+  lines=$(command sed 's/#.*//' "$NVMRC_PATH" | command sed 's/^[[:space:]]*//;s/[[:space:]]*$//' | nvm_grep -v '^$')
  if [ -z "$lines" ]; then
    nvm_nvmrc_invalid_msg "${lines}"
@@ -634,13 +617,6 @@ EOF
  nvm_echo "${unpaired_line}"
 }
 nvm_process_nvmrc() {
  local NVMRC_PATH
  NVMRC_PATH="$1"
  nvm_process_nvmrc_content "$(command cat "${NVMRC_PATH}")"
 }
 nvm_rc_version() {
  local NVMRC_PATH
  NVMRC_PATH="$(nvm_find_nvmrc)"
@@ -673,7 +649,7 @@ nvm_clang_version() {
 }
 nvm_curl_version() {
-  command curl -V | command awk '{ if ($1 == "curl") print $2 }' | command sed 's/-.*$//g'
+  curl -V | command awk '{ if ($1 == "curl") print $2 }' | command sed 's/-.*$//g'
 }
 nvm_version_greater() {
@@ -1283,13 +1259,6 @@ nvm_make_alias() {
    nvm_err "an alias target version is required"
    return 2
  fi
  # slashes are legal (eg `lts/iron`), but a `..` component would escape the alias dir
  case "/${ALIAS}/" in
    */../*)
      nvm_err "invalid alias name: ${ALIAS}"
      return 3
    ;;
  esac
  nvm_echo "${VERSION}" | tee "$(nvm_alias_path)/${ALIAS}" >/dev/null
 }
@@ -1374,24 +1343,7 @@ nvm_alias() {
    return 2
  fi
-  if [ ! -r "${NVM_ALIAS_PATH}" ]; then
+  command sed 's/#.*//; s/[[:space:]]*$//' "${NVM_ALIAS_PATH}" | command awk 'NF'
    # an existing-but-unreadable alias file yields empty output with a success
    # status - a nonzero status here would make `nvm_ensure_default_set`
    # overwrite an existing default alias it merely could not read
    nvm_err "Alias file is not readable: ${NVM_ALIAS_PATH}"
    return 0
  fi
  local NVM_ALIAS_LINE
  while IFS= read -r NVM_ALIAS_LINE || [ -n "${NVM_ALIAS_LINE}" ]; do
    NVM_ALIAS_LINE="${NVM_ALIAS_LINE%%#*}"
    case "${NVM_ALIAS_LINE}" in
      *[![:space:]]*) ;;
      *) continue ;;
    esac
    NVM_ALIAS_LINE="${NVM_ALIAS_LINE%"${NVM_ALIAS_LINE##*[![:space:]]}"}"
    nvm_echo "${NVM_ALIAS_LINE}"
  done < "${NVM_ALIAS_PATH}"
 }
 nvm_ls_current() {
@@ -1424,32 +1376,24 @@ nvm_resolve_alias() {
  local ALIAS
  ALIAS="${PATTERN}"
  local ALIAS_TEMP
  local ALIAS_OUTPUT
  local SEEN_ALIASES
-  SEEN_ALIASES="
+  SEEN_ALIASES="${ALIAS}"
-${ALIAS}
+  local NVM_ALIAS_INDEX
-"
+  NVM_ALIAS_INDEX=1
  while true; do
-    ALIAS_OUTPUT="$(nvm_alias "${ALIAS}" 2>/dev/null)" || ALIAS_OUTPUT=''
+    ALIAS_TEMP="$( (nvm_alias "${ALIAS}" 2>/dev/null | command head -n "${NVM_ALIAS_INDEX}" | command tail -n 1) || nvm_echo)"
    ALIAS_TEMP="${ALIAS_OUTPUT%%
 *}"
    if [ -z "${ALIAS_TEMP}" ]; then
      break
    fi
-    case "${SEEN_ALIASES}" in
+    if command printf '%b' "${SEEN_ALIASES}" | nvm_grep -q -e "^${ALIAS_TEMP}$"; then
-      *"
+      ALIAS="∞"
-${ALIAS_TEMP}
+      break
-"*)
+    fi
        ALIAS="∞"
        break
      ;;
    esac
-    SEEN_ALIASES="${SEEN_ALIASES}${ALIAS_TEMP}
+    SEEN_ALIASES="${SEEN_ALIASES}\\n${ALIAS_TEMP}"
 "
    ALIAS="${ALIAS_TEMP}"
  done
@@ -1530,17 +1474,6 @@ nvm_strip_iojs_prefix() {
 nvm_ls() {
  local PATTERN
  PATTERN="${1-}"
  case "${PATTERN}" in
    *'#'* | *'
 '*)
      local NVMRC_PATTERN
      if ! NVMRC_PATTERN="$(nvm_process_nvmrc_content "${PATTERN}" 2>/dev/null)"; then
        nvm_echo 'N/A'
        return 3
      fi
      PATTERN="${NVMRC_PATTERN}"
    ;;
  esac
  local VERSIONS
  VERSIONS=''
  if [ "${PATTERN}" = 'current' ]; then
@@ -1804,7 +1737,6 @@ nvm_ls_remote_index_tab() {
  command mkdir -p "$(nvm_alias_path)/lts"
  { command awk '{
        if ($10 ~ /^\-?$/) { next }
        if (tolower($10) !~ /^[a-z0-9][a-z0-9._-]*$/) { next }
        if ($10 && !a[tolower($10)]++) {
          if (alias) { print alias, version }
          alias_name = "lts/" tolower($10)
@@ -2239,7 +2171,6 @@ nvm_get_arch() {
    x86_64 | amd64) NVM_ARCH="x64" ;;
    i*86) NVM_ARCH="x86" ;;
    aarch64 | armv8l) NVM_ARCH="arm64" ;;
    loongarch64) NVM_ARCH="loong64" ;;
    *) NVM_ARCH="${HOST_ARCH}" ;;
  esac
@@ -2259,12 +2190,10 @@ nvm_get_arch() {
    HOST_ARCH=armv7l
  fi
-  if [ -f "/etc/alpine-release" ] && [ "_${NVM_OS}" = "_linux" ]; then
+  if [ -f "/etc/alpine-release" ]; then
-    # Alpine Linux uses musl libc; map to musl variants where available
+    # Alpine Linux uses musl libc; only x64-musl binaries are available
    # See https://unofficial-builds.nodejs.org/download/release/
    case "${NVM_ARCH}" in
      x64) NVM_ARCH=x64-musl ;;
      arm64) NVM_ARCH=arm64-musl ;;
    esac
  fi
@@ -2509,10 +2438,15 @@ nvm_get_download_slug() {
    fi
  fi
-  # If running MAC M1 :: ARM64 binaries are not available for Node < 16.0.0
+  # If running MAC M1 :: Node v14.17.0 was the first version to offer official experimental support:
-  # https://github.com/nodejs/node/issues/40126 (binary distributions aren't available until v16)
+  # https://github.com/nodejs/node/issues/40126 (although binary distributions aren't available until v16)
-  if nvm_version_greater '16.0.0' "${VERSION}" && [ "_${NVM_OS}" = '_darwin' ] && [ "${NVM_ARCH}" = 'arm64' ]; then
+  if \
-    NVM_ARCH=x64
+    nvm_version_greater '14.17.0' "${VERSION}" \
    || (nvm_version_greater_than_or_equal_to "${VERSION}" '15.0.0' && nvm_version_greater '16.0.0' "${VERSION}") \
  ; then
    if [ "_${NVM_OS}" = '_darwin' ] && [ "${NVM_ARCH}" = 'arm64' ]; then
      NVM_ARCH=x64
    fi
  fi
  if [ "${KIND}" = 'binary' ]; then
@@ -3173,28 +3107,21 @@ nvm_cache_dir() {
 nvm_ls_cached() {
  local PATTERN
  PATTERN="${1-}"
-  local NVM_CACHE_DIR
+  local CACHE_BIN_DIR
-  NVM_CACHE_DIR="$(nvm_cache_dir)"
+  CACHE_BIN_DIR="$(nvm_cache_dir)/bin"
  if [ ! -d "${CACHE_BIN_DIR}" ]; then
    return
  fi
  local NVM_OS
  NVM_OS="$(nvm_get_os)"
  local NVM_ARCH
  NVM_ARCH="$(nvm_get_arch)"
  local SUFFIX
  SUFFIX="${NVM_OS}-${NVM_ARCH}"
-  {
+  # shellcheck disable=SC2010
-    if [ -d "${NVM_CACHE_DIR}/bin" ]; then
+  command ls -1 "${CACHE_BIN_DIR}" \
-      # shellcheck disable=SC2010
+    | nvm_grep "^node-v.*-${SUFFIX}\$" \
-      command ls -1 "${NVM_CACHE_DIR}/bin" \
+    | command sed "s/^node-\\(v[0-9][0-9.]*\\)-${SUFFIX}\$/\\1/" \
        | nvm_grep "^\\(node\\|iojs\\)-v[0-9][0-9.]*-${SUFFIX}\$" \
        | command sed "s/-${SUFFIX}\$//"
    fi
    if [ -d "${NVM_CACHE_DIR}/src" ]; then
      # shellcheck disable=SC2010
      command ls -1 "${NVM_CACHE_DIR}/src" \
        | nvm_grep "^\\(node\\|iojs\\)-v[0-9][0-9.]*\$"
    fi
  } \
    | command sed 's/^node-//' \
    | nvm_grep "$(nvm_ensure_version_prefix "${PATTERN}")" \
    | command sort -t. -u -k 1.2,1n -k 2,2n -k 3,3n
 }
@@ -3647,7 +3574,7 @@ nvm() {
        esac
      done
-      if [ "${NVM_OFFLINE}" != 1 ] && ! nvm_has_executable "curl" && ! nvm_has_executable "wget"; then
+      if [ "${NVM_OFFLINE}" != 1 ] && ! nvm_has "curl" && ! nvm_has "wget"; then
        nvm_err 'nvm needs curl or wget to proceed.'
        return 1
      fi
@@ -4737,7 +4664,7 @@ nvm() {
      NVM_VERSION_ONLY=true NVM_LTS="${NVM_LTS-}" nvm_remote_version "${PATTERN:-node}"
    ;;
    "--version" | "-v")
-      nvm_echo '0.40.6'
+      nvm_echo '0.40.5'
    ;;
    "unload")
      nvm deactivate >/dev/null 2>&1
@@ -4766,7 +4693,7 @@ nvm() {
        nvm_version_greater nvm_version_greater_than_or_equal_to \
        nvm_print_npm_version nvm_install_latest_npm nvm_npm_global_modules \
        nvm_has_system_node nvm_has_system_iojs \
-        nvm_download nvm_get_latest nvm_has nvm_has_executable nvm_install_default_packages nvm_get_default_packages \
+        nvm_download nvm_get_latest nvm_has nvm_install_default_packages nvm_get_default_packages \
        nvm_curl_use_compression nvm_curl_version \
        nvm_auto nvm_supports_xz \
        nvm_echo nvm_err nvm_grep nvm_cd \
@@ -4782,7 +4709,7 @@ nvm() {
        nvm_get_colors nvm_set_colors nvm_print_color_code nvm_wrap_with_color_code nvm_format_help_message_colors \
        nvm_echo_with_colors nvm_err_with_colors \
        nvm_get_artifact_compression nvm_install_binary_extract nvm_extract_tarball \
-        nvm_process_nvmrc nvm_process_nvmrc_content nvm_nvmrc_invalid_msg \
+        nvm_process_nvmrc nvm_nvmrc_invalid_msg \
        nvm_write_nvmrc \
        >/dev/null 2>&1
      unset NVM_NODEJS_ORG_MIRROR NVM_IOJS_ORG_MIRROR NVM_DIR \
@@ -1,6 +1,6 @@
 {
  "name": "nvm",
-  "version": "0.40.6",
+  "version": "0.40.5",
  "description": "Node Version Manager - Simple bash script to manage multiple active node.js versions",
  "directories": {
    "test": "test"
@@ -14,7 +14,7 @@
    "test/installation/node": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=installation_node test-$shell",
    "test/installation/iojs": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=installation_iojs test-$shell",
    "test/sourcing": "shell=$(basename -- $(ps -o comm= $(ps -o ppid= -p $PPID)) | sed 's/^-//'); make TEST_SUITE=sourcing test-$shell",
-    "test:check-exec": "git -c core.quotePath=false ls-files test | while IFS= read -r file; do if [ ! -x \"$file\" ]; then case \"$file\" in test/fixtures/*|*.json|*.txt|*.sh|*.js|*.log|*.tab|*.gitkeep) ;; *) echo \"$file\" ;; esac; fi; done | tee /dev/stderr | awk 'END {if (NR > 0) exit 1}'",
+    "test:check-exec": "(IFS=$'\\n'; for file in $(git ls-files test); do if [ ! -x \"$file\" ] && [[ \"$file\" != *.* ]] && [[ \"$file\" != test/fixtures/* ]]; then echo \"$file\"; fi; done) | tee /dev/stderr | awk 'END {if (NR > 0) exit 1}'",
    "test:check-nonexec": "(IFS=$'\\n'; for file in $(git ls-files test); do if [ -x \"$file\" ] && [ ! -d \"$file\" ] && { [[ \"$file\" =~ '\\.(json|txt|sh|js|log)$' ]] || [[ \"$file\" =~ '^test/(mocks|fixtures)/.*' ]]; }; then echo \"$file\"; fi; done) | tee /dev/stderr | awk 'END {if (NR > 0) exit 1}'",
    "doctoc": "doctoc --title='## Table of Contents' --github README.md",
    "predoctoc:check": "cp README.md v-README.md.orig && npm run doctoc",
@@ -50,39 +50,6 @@ make_echo() {
  chmod a+x "$1"
 }
 # `command curl` bypasses shell functions and aliases, so tests that mock curl
 # must provide an actual executable on the PATH: this creates one in the given
 # directory. Invoked as `curl -V`, it prints ${VERSION_MESSAGE} (exported here
 # on the mock's behalf); any other invocation runs the body given as the
 # second argument, or fails.
 make_fake_curl() {
  local FAKE_BIN_DIR
  FAKE_BIN_DIR="${1-}"
  [ -n "${FAKE_BIN_DIR}" ] || return 1
  local FAKE_CURL_BODY
  FAKE_CURL_BODY="${2-}"
  if [ -z "${FAKE_CURL_BODY}" ]; then
    FAKE_CURL_BODY='echo >&2 "This fake curl only takes one parameter, -V"
 exit 1'
  fi
  mkdir -p "${FAKE_BIN_DIR}" || return 2
  {
    echo '#!/bin/sh'
    echo 'if [ "$#" -eq 1 ] && [ "$1" = "-V" ]; then'
    echo '  echo "${VERSION_MESSAGE}"'
    echo '  exit 0'
    echo 'fi'
    printf '%s\n' "${FAKE_CURL_BODY}"
  } > "${FAKE_BIN_DIR}/curl"
  chmod +x "${FAKE_BIN_DIR}/curl"
  # the fake curl reads VERSION_MESSAGE from the environment
  export VERSION_MESSAGE
 }
 make_fake_node() {
  local VERSION
  VERSION="${1-}"
@@ -1,17 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file whose name contains spaces
 mkdir -p ../../../alias
 printf 'v22.1.0\n' > "../../../alias/test edge spaces"
 ACTUAL="$(nvm_alias "test edge spaces")"
 EXPECTED='v22.1.0'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
 rm -f "../../../alias/test edge spaces"
@@ -1,20 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file where the first line has a valid version
 # followed by a second line of binary-like data
 printf 'v22.1.0\n' > ../../../alias/test-edge-binary
 printf '\001\002\003\377\n' >> ../../../alias/test-edge-binary
 ACTUAL="$(nvm_alias test-edge-binary)"
 # nvm_alias emits every non-blank, non-comment line — first line should be the version
 FIRST_LINE="$(nvm_echo "${ACTUAL}" | command head -n 1)"
 EXPECTED='v22.1.0'
 [ "${FIRST_LINE}" = "${EXPECTED}" ] || die "expected first line >${EXPECTED}<, got >${FIRST_LINE}<"
 rm -f ../../../alias/test-edge-binary
@@ -1,22 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file with Windows-style line endings (CRLF)
 printf 'v22.1.0\r\n' > ../../../alias/test-edge-cr
 ACTUAL="$(nvm_alias test-edge-cr)"
 EXPECTED='v22.1.0'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
 # Create an alias file with bare carriage return (no newline)
 printf 'v22.2.0\r' > ../../../alias/test-edge-cr-bare
 ACTUAL="$(nvm_alias test-edge-cr-bare)"
 EXPECTED='v22.2.0'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for bare CR, got >${ACTUAL}<"
 rm -f ../../../alias/test-edge-cr ../../../alias/test-edge-cr-bare
@@ -1,17 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file containing only comments
 printf '# this is a comment\n# another comment\n' > ../../../alias/test-edge-comments
 ACTUAL="$(nvm_alias test-edge-comments 2>/dev/null)"
 EXIT_CODE="$(nvm_alias test-edge-comments 2>/dev/null; echo $?)"
 [ -z "${ACTUAL}" ] || die "expected empty output for comment-only alias file, got >${ACTUAL}<"
 [ "${EXIT_CODE}" = '0' ] || die "expected exit code 0, got ${EXIT_CODE}"
 rm -f ../../../alias/test-edge-comments
@@ -1,22 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file with an embedded NUL byte after the version.
 # NUL handling varies by shell: some stop at NUL, others read through it.
 # The function must not crash, and must emit output starting with the version.
 printf 'v22.1.0\000garbage\n' > ../../../alias/test-edge-nul
 ACTUAL="$(nvm_alias test-edge-nul)"
 EXIT_CODE=$?
 [ "${EXIT_CODE}" = '0' ] || die "expected exit code 0, got ${EXIT_CODE}"
 case "${ACTUAL}" in
  v22.1.0*) ;; # OK — starts with the version regardless of NUL handling
  *) die "expected output starting with >v22.1.0<, got >${ACTUAL}<" ;;
 esac
 rm -f ../../../alias/test-edge-nul
@@ -1,17 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an empty alias file
 printf '' > ../../../alias/test-edge-empty
 ACTUAL="$(nvm_alias test-edge-empty 2>/dev/null)"
 EXIT_CODE="$(nvm_alias test-edge-empty 2>/dev/null; echo $?)"
 [ -z "${ACTUAL}" ] || die "expected empty output for empty alias file, got >${ACTUAL}<"
 [ "${EXIT_CODE}" = '0' ] || die "expected exit code 0, got ${EXIT_CODE}"
 rm -f ../../../alias/test-edge-empty
@@ -1,22 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file with trailing form feed
 printf 'v22.1.0\f\n' > ../../../alias/test-edge-ff
 ACTUAL="$(nvm_alias test-edge-ff)"
 EXPECTED='v22.1.0'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for form feed, got >${ACTUAL}<"
 # Create an alias file with trailing vertical tab
 printf 'v22.2.0\v\n' > ../../../alias/test-edge-vt
 ACTUAL="$(nvm_alias test-edge-vt)"
 EXPECTED='v22.2.0'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for vertical tab, got >${ACTUAL}<"
 rm -f ../../../alias/test-edge-ff ../../../alias/test-edge-vt
@@ -1,16 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file with no trailing newline
 printf 'v22.1.0' > ../../../alias/test-edge-no-newline
 ACTUAL="$(nvm_alias test-edge-no-newline)"
 EXPECTED='v22.1.0'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
 rm -f ../../../alias/test-edge-no-newline
@@ -1,38 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; cleanup ; exit 1; }
 cleanup() {
  chmod 644 ../../../alias/test-edge-unreadable 2>/dev/null
  rm -f ../../../alias/test-edge-unreadable
 }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file that exists but can not be read
 echo 'v0.0.1' > ../../../alias/test-edge-unreadable
 chmod 000 ../../../alias/test-edge-unreadable
 # root (and some containers) can read mode-000 files; nothing to assert there
 if [ -r ../../../alias/test-edge-unreadable ]; then
  cleanup
  exit 0
 fi
 # like the sed/awk pipeline this replaced: empty output, success status, so
 # that `nvm_ensure_default_set` does not overwrite an unreadable default alias
 OUTPUT="$(nvm_alias test-edge-unreadable 2>/dev/null)"
 EXIT_CODE=$?
 [ "${EXIT_CODE}" = '0' ] || die "expected exit code 0 for unreadable alias file, got ${EXIT_CODE}"
 [ -z "${OUTPUT}" ] || die "expected empty output for unreadable alias file, got >${OUTPUT}<"
 STDERR="$(nvm_alias test-edge-unreadable 2>&1 >/dev/null)"
 case "${STDERR}" in
  *'not readable'*) ;;
  *) die "expected a not-readable warning on stderr, got >${STDERR}<" ;;
 esac
 cleanup
@@ -1,17 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file with a very long line (version followed by a long comment)
 LONG_COMMENT="$(printf '%0*d' 10000 0 | command tr '0' 'x')"
 printf 'v22.1.0 #%s\n' "${LONG_COMMENT}" > ../../../alias/test-edge-long
 ACTUAL="$(nvm_alias test-edge-long)"
 EXPECTED='v22.1.0'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
 rm -f ../../../alias/test-edge-long
@@ -1,16 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias file with trailing spaces and tabs
 printf '22.1.0   \t \n' > ../../../alias/test-edge-trailing-ws
 ACTUAL="$(nvm_alias test-edge-trailing-ws)"
 EXPECTED='22.1.0'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
 rm -f ../../../alias/test-edge-trailing-ws
@@ -1,74 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # 1-hop self-reference: alias points to itself
 echo 'self' > '../../../alias/self'
 ACTUAL="$(nvm_resolve_alias self)"
 EXPECTED='∞'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for self-reference, got >${ACTUAL}<"
 rm -f '../../../alias/self'
 # Multi-hop loop: link1 -> link2 -> link3 -> link1
 echo 'link2' > '../../../alias/link1'
 echo 'link3' > '../../../alias/link2'
 echo 'link1' > '../../../alias/link3'
 ACTUAL="$(nvm_resolve_alias link1)"
 EXPECTED='∞'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for 3-hop cycle, got >${ACTUAL}<"
 rm -f '../../../alias/link1' '../../../alias/link2' '../../../alias/link3'
 # Cycle through an alias name containing a space
 echo 'midway' > '../../../alias/foo bar'
 echo 'foo bar' > '../../../alias/midway'
 ACTUAL="$(nvm_resolve_alias 'foo bar')"
 EXPECTED='∞'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for space-name cycle, got >${ACTUAL}<"
 rm -f '../../../alias/foo bar' '../../../alias/midway'
 # Non-cycle through an alias name containing a space.
 # Guards the newline-delimited SEEN_ALIASES storage: with space- or
 # token-delimited storage, seen name 'foo bar' would falsely match 'bar'.
 # Resolves: 'foo bar' -> 'midway' -> 'bar' -> 0.0.99
 echo 'midway' > '../../../alias/foo bar'
 echo 'bar' > '../../../alias/midway'
 echo '0.0.99' > '../../../alias/bar'
 ACTUAL="$(nvm_resolve_alias 'foo bar')"
 EXPECTED='v0.0.99'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for space-name chain, got >${ACTUAL}<"
 rm -f '../../../alias/foo bar' '../../../alias/midway' '../../../alias/bar'
 # Non-cycle through an alias name containing a regex metacharacter.
 # Guards the literal `case` matching: the previous grep-based detection
 # interpolated the resolved name into an anchored regex, so resolving 'axb'
 # matched the seen name 'axb' against the pattern 'a.b' and falsely
 # reported a cycle.
 # Resolves: 'axb' -> 'a.b' -> 0.0.99
 echo 'a.b' > '../../../alias/axb'
 echo '0.0.99' > '../../../alias/a.b'
 ACTUAL="$(nvm_resolve_alias axb)"
 EXPECTED='v0.0.99'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for metachar-name chain, got >${ACTUAL}<"
 # ... while a genuine cycle through a metachar name is still detected
 echo 'axb' > '../../../alias/a.b'
 ACTUAL="$(nvm_resolve_alias axb)"
 EXPECTED='∞'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for metachar-name cycle, got >${ACTUAL}<"
 rm -f '../../../alias/axb' '../../../alias/a.b'
@@ -1,20 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create a 4-deep alias chain: hop1 -> hop2 -> hop3 -> hop4 -> 0.0.99
 echo 'hop2' > ../../../alias/hop1
 echo 'hop3' > ../../../alias/hop2
 echo 'hop4' > ../../../alias/hop3
 echo '0.0.99' > ../../../alias/hop4
 ACTUAL="$(nvm_resolve_alias hop1)"
 EXPECTED='v0.0.99'
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}< for 4-deep chain, got >${ACTUAL}<"
 rm -f ../../../alias/hop1 ../../../alias/hop2 ../../../alias/hop3 ../../../alias/hop4
@@ -1,19 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 export NVM_DIR="$(cd ../../.. && pwd)"
 : nvm.sh
 \. "${NVM_DIR}/nvm.sh"
 # Create an alias pointing to a version that does not exist as an alias
 echo '99.99.99' > ../../../alias/test-edge-noexist
 ACTUAL="$(nvm_resolve_alias test-edge-noexist)"
 EXPECTED='v99.99.99'
 EXIT_CODE="$(nvm_resolve_alias test-edge-noexist >/dev/null 2>&1; echo $?)"
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
 [ "${EXIT_CODE}" = '0' ] || die "expected exit code 0, got ${EXIT_CODE}"
 rm -f ../../../alias/test-edge-noexist
@@ -17,8 +17,3 @@ rm -f "../../../alias/iojs"
 rm -f "../../../alias/default"
 rm -f "../../../alias/test-blank-lines"
 rm -f "../../../alias/test-multi-lines"
 rm -f "../../../alias/test-edge-"* "../../../alias/test edge spaces"
 rm -f "../../../alias/self" "../../../alias/link1" "../../../alias/link2" "../../../alias/link3"
 rm -f "../../../alias/foo bar" "../../../alias/midway" "../../../alias/bar"
 rm -f "../../../alias/hop1" "../../../alias/hop2" "../../../alias/hop3" "../../../alias/hop4"
 rm -f "../../../alias/axb" "../../../alias/a.b"
@@ -12,10 +12,8 @@ nvm_download() {
 }
 # --offline with an already-installed version should succeed
-# (`nvm ls` ends with the alias listing, so use `nvm_ls`, which emits bare
+INSTALLED_VERSION="$(nvm ls | command tail -1 | command awk '{print $1}' | command sed 's/\x1b\[[0-9;]*m//g')"
-# versions, and skip its trailing `system <version>` line)
+if [ -n "${INSTALLED_VERSION}" ] && [ "_${INSTALLED_VERSION}" != '_N/A' ] && [ "_${INSTALLED_VERSION}" != '_system' ]; then
 INSTALLED_VERSION="$(nvm_ls | command grep -v '^system' | command tail -n1)"
 if [ -n "${INSTALLED_VERSION}" ] && [ "_${INSTALLED_VERSION}" != '_N/A' ]; then
  try nvm install --offline "${INSTALLED_VERSION}"
  [ "_$CAPTURED_EXIT_CODE" = "_0" ] \
    || die "nvm install --offline with installed version '${INSTALLED_VERSION}' should succeed, got exit code $CAPTURED_EXIT_CODE"
@@ -32,10 +30,9 @@ nvm_echo "$CAPTURED_STDERR" | nvm_grep -q "${EXPECTED_ERR}" \
 # --offline should not require curl or wget
 nvm_has() { return 1; }
 nvm_has_executable() { return 1; }
 try_err nvm install --offline 999.999.999
 # Should fail with "not found" not "nvm needs curl or wget"
 nvm_echo "$CAPTURED_STDERR" | nvm_grep -q "curl or wget" \
  && die "nvm install --offline should not require curl or wget"
 alias nvm_has='\nvm_has'
-unset -f nvm_has nvm_has_executable
+unset -f nvm_has
@@ -1,11 +1,7 @@
 #!/bin/sh
 WORK="$PWD/nvm_curl_libz_support-work.$$"
 TEST_BIN="$WORK/bin"
 cleanup() {
-  rm -rf "$WORK"
+  unset -f curl
  export PATH="$OLDPATH"
 }
 die() { cleanup; echo "$@" ; exit 1; }
@@ -13,28 +9,32 @@ die() { cleanup; echo "$@" ; exit 1; }
 : nvm.sh
 \. ../../../nvm.sh
-\. ../../common.sh
+curl() {
-
+    # curl with libz feature
-OLDPATH="$PATH"
+    if [ $# -ne 1 ] || [ "$1" != "-V" ]; then
-
+        die "This fake curl only takes one parameter -V"
-make_fake_curl "$TEST_BIN"
+    fi
-
+    echo "
 export PATH="$TEST_BIN:$OLDPATH"
 # curl with libz feature
 VERSION_MESSAGE="
 curl 7.47.0 (x86_64-pc-linux-gnu) libcurl/7.47.0 GnuTLS/3.4.10 zlib/1.2.8 libidn/1.32 librtmp/2.3
 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp smb smbs smtp smtps telnet tftp
 Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP UnixSockets"
 }
 nvm_curl_libz_support || die "nvm_curl_libz_support should return 0"
-# curl without libz feature
+unset -f curl
-VERSION_MESSAGE="
+
 curl() {
    # curl without libz feature
    if [ "$#" -ne 1 ] || [ "$1" != "-V" ]; then
        die "This fake curl only takes one parameter -V"
    fi
    echo "
 curl 7.47.0 (x86_64-pc-linux-gnu) libcurl/7.47.0 GnuTLS/3.4.10 zlib/1.2.8 libidn/1.32 librtmp/2.32
 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp smb smbs smtp smtps telnet tftp
 Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL TLS-SRP UnixSockets"
 }
 ! nvm_curl_libz_support || die "nvm_curl_libz_support should return 1"
-cleanup
+unset -f curl
@@ -1,25 +1,18 @@
 #!/bin/sh
 WORK="$PWD/nvm_curl_use_compression-work.$$"
 TEST_BIN="$WORK/bin"
 cleanup () {
  unset -f die
  rm -rf "$WORK"
  export PATH="$OLDPATH"
 }
 die () { echo -e "$@" ; cleanup ;  exit 1; }
 NVM_ENV=testing \. ../../../nvm.sh
-\. ../../common.sh
+curl() {
-
+  if [ "$1" = "-V" ]; then
-OLDPATH="$PATH"
+    echo "${VERSION_MESSAGE}"
-
+  fi
-make_fake_curl "$TEST_BIN"
+}
 export PATH="$TEST_BIN:$OLDPATH"
 CURL_VERSION_ON_ARCHLINUX_WITH_LIBZ="curl 7.54.0 (x86_64-pc-linux-gnu) libcurl/7.54.0 OpenSSL/1.1.0f zlib/1.2.11 libpsl/0.17.0 (+libicu/59.1) libssh2/1.8.0 nghttp2/1.22.0
 Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
@@ -1,25 +1,19 @@
 #!/bin/sh
 WORK="$PWD/nvm_curl_version-work.$$"
 TEST_BIN="$WORK/bin"
 cleanup () {
-  unset -f die cleanup assert_version_is
+  unset -f die
-  rm -rf "$WORK"
+  unset -f curl
  export PATH="$OLDPATH"
 }
 die () { echo -e "$@" ; cleanup ;  exit 1; }
 NVM_ENV=testing \. ../../../nvm.sh
-\. ../../common.sh
+curl() {
-
+  if [ "$1" = "-V" ]; then
-OLDPATH="$PATH"
+    echo "${VERSION_MESSAGE}"
-
+  fi
-make_fake_curl "$TEST_BIN"
+}
 export PATH="$TEST_BIN:$OLDPATH"
 assert_version_is() {
  if [ "${1}" != "${2}" ]; then
@@ -1,66 +0,0 @@
 #!/bin/sh
 WORK="$PWD/shadowed-curl-work.$$"
 TEST_BIN="$WORK/bin"
 ARGV_LOG="$WORK/argv.log"
 cleanup () {
  unset -f die cleanup curl wget
  rm -rf "$WORK"
  export PATH="$OLDPATH"
 }
 die () { echo "$@" ; cleanup ; exit 1; }
 NVM_ENV=testing \. ../../../nvm.sh
 \. ../../common.sh
 OLDPATH="$PATH"
 # real-looking curl on PATH; calling the shadowing shell function below instead is a failure
 make_fake_curl "$TEST_BIN" ': > "$ARGV_LOG"
 for a in "$@"; do printf "%s\n" "$a" >> "$ARGV_LOG"; done'
 VERSION_MESSAGE="curl 7.99.0 (fake)
 Features: libz"
 export ARGV_LOG
 export PATH="$TEST_BIN:$OLDPATH"
 # shadowing shell functions, like aliases baked into a user's shell, must be
 # bypassed in favor of the executables on PATH (https://github.com/nvm-sh/nvm/issues/2923)
 curl() {
  echo 'curl 0.0.0-shadowed'
  return 1
 }
 wget() {
  return 1
 }
 [ "$(nvm_curl_version)" = '7.99.0' ] || die "nvm_curl_version used the shadowing curl function; got $(nvm_curl_version)"
 nvm_curl_libz_support || die 'nvm_curl_libz_support used the shadowing curl function'
 nvm_download -s 'http://example.com/' -o /dev/null || die 'nvm_download used the shadowing curl function and failed'
 grep -Fxq 'http://example.com/' "$ARGV_LOG" || die "nvm_download did not invoke the curl executable; got: $(cat "$ARGV_LOG")"
 # when no curl executable exists, a shadowing curl shell function must not fool
 # downloader selection: nvm_download must fall back to the wget executable
 WGET_ONLY_BIN="$WORK/wget-only-bin"
 mkdir -p "$WGET_ONLY_BIN"
 {
  echo '#!/bin/sh'
  echo ': > "$ARGV_LOG"'
  echo 'for a in "$@"; do printf "%s\n" "$a" >> "$ARGV_LOG"; done'
 } > "$WGET_ONLY_BIN/wget"
 chmod +x "$WGET_ONLY_BIN/wget"
 (
  PATH="$WGET_ONLY_BIN"
  export PATH
  nvm_download -s 'http://wget-fallback.example.com/' -o /dev/null
 ) || die 'nvm_download did not fall back to wget when curl is only a shell function'
 grep -Fxq 'http://wget-fallback.example.com/' "$ARGV_LOG" || die "nvm_download did not invoke the wget executable; got: $(cat "$ARGV_LOG")"
 cleanup
@@ -6,7 +6,7 @@ TEST_BIN="$WORK/bin"
 ARGV_LOG="$WORK/argv.log"
 cleanup() {
-  unset -f die cleanup nvm_has_executable
+  unset -f die cleanup nvm_has
  rm -rf "$WORK"
  export PATH="$OLDPATH"
 }
@@ -30,7 +30,7 @@ chmod +x "$TEST_BIN/wget"
 export ARGV_LOG
 export PATH="$TEST_BIN:$OLDPATH"
 # force the wget path while keeping system tools (sed) available for sanitization
-nvm_has_executable() { [ "$1" != curl ] && command -v "$1" >/dev/null 2>&1; }
+nvm_has() { [ "$1" != curl ] && command -v "$1" >/dev/null 2>&1; }
 # given an Authorization credential in NVM_AUTH_HEADER
 # when nvm_download uses the wget path
@@ -90,14 +90,7 @@ run_test amd64 smartos x64 no_pkg_info
 run_test x86 osx x86
 run_test amd64 osx x64
-# These smartos cases have no arch-specific uname mock, so nvm_get_os falls
+run_test arm64 smartos x64
-# through to the real host; on Alpine that host is linux and picks up the musl
+run_test armv8l smartos x64
 # suffix, which these non-musl assertions do not expect. Skip them there.
 if [ ! -f "/etc/alpine-release" ]; then
  run_test arm64 smartos x64
  run_test armv8l smartos x64
 fi
 run_test loongarch64 linux loong64
 cleanup
@@ -15,8 +15,8 @@ die () { cleanup; echo "$@" ; exit 1; }
 MOCKS_DIR="$(pwd)/../../mocks"
 export PATH=".:${PATH}"
-# On Alpine (where /etc/alpine-release exists), both x64 and arm64 should get
+# On Alpine (where /etc/alpine-release exists), x64 should get -musl suffix
-# the -musl suffix, since unofficial-builds publishes musl binaries for both.
+# and arm64 should NOT get -musl suffix.
 # On non-Alpine, neither should get -musl.
 if [ -f "/etc/alpine-release" ]; then
@@ -26,11 +26,11 @@ if [ -f "/etc/alpine-release" ]; then
  rm -f ./uname
  [ "_${OUTPUT}" = "_x64-musl" ] || die "x64 on Alpine should be x64-musl, got ${OUTPUT}"
-  # aarch64 on Alpine should produce arm64-musl
+  # aarch64 on Alpine should produce arm64, NOT arm64-musl
  ln -sf "${MOCKS_DIR}/uname_linux_aarch64" ./uname
  OUTPUT="$(nvm_get_arch)"
  rm -f ./uname
-  [ "_${OUTPUT}" = "_arm64-musl" ] || die "aarch64 on Alpine should be arm64-musl, got ${OUTPUT}"
+  [ "_${OUTPUT}" = "_arm64" ] || die "aarch64 on Alpine should be arm64 (no musl suffix), got ${OUTPUT}"
 else
  # x64 on non-Alpine should produce x64 (no musl suffix)
  ln -sf "${MOCKS_DIR}/uname_linux_x86_64" ./uname
@@ -57,23 +57,15 @@ setup_chroot() {
  sudo mknod "${chroot_dir}/dev/null" c 1 3
 }
-# The chroot fixtures assume a glibc layout (fixed dynamic-linker path under
+setup_chroot "${CHROOT_WITH_ALPINE}"
-# /lib64, coreutils binaries). On musl Alpine that setup does not apply, and
+setup_chroot "${CHROOT_WITHOUT_ALPINE}"
 # nvm_get_arch's musl mapping is already covered by the "nvm_get_arch alpine"
 # test, so skip the chroot checks there and still run the ls-remote checks.
 if [ -f "/etc/alpine-release" ]; then
  echo "on Alpine; skipping chroot arch checks (covered by 'nvm_get_arch alpine')"
 else
  setup_chroot "${CHROOT_WITH_ALPINE}"
  setup_chroot "${CHROOT_WITHOUT_ALPINE}"
-  # Run tests in chroot environments
+# Run tests in chroot environments
-  ARCH_WITH_ALPINE=$(sudo chroot "${CHROOT_WITH_ALPINE}" /bin/sh -c ". ./nvm.sh && nvm_get_arch")
+ARCH_WITH_ALPINE=$(sudo chroot "${CHROOT_WITH_ALPINE}" /bin/sh -c ". ./nvm.sh && nvm_get_arch")
-  [ "${ARCH_WITH_ALPINE}" = "x64-musl" ] || die "Expected x64-musl for alpine environment but got ${ARCH_WITH_ALPINE}"
+[ "${ARCH_WITH_ALPINE}" = "x64-musl" ] || die "Expected x64-musl for alpine environment but got ${ARCH_WITH_ALPINE}"
-  ARCH_WITHOUT_ALPINE=$(sudo chroot "${CHROOT_WITHOUT_ALPINE}" /bin/sh -c ". ./nvm.sh && nvm_get_arch")
+ARCH_WITHOUT_ALPINE=$(sudo chroot "${CHROOT_WITHOUT_ALPINE}" /bin/sh -c ". ./nvm.sh && nvm_get_arch")
-  [ "${ARCH_WITHOUT_ALPINE}" != "x64-musl" ] || die "Did not expect x64-musl for non-alpine environment"
+[ "${ARCH_WITHOUT_ALPINE}" != "x64-musl" ] || die "Did not expect x64-musl for non-alpine environment"
 fi
 # Run tests for nvm ls-remote
 test_default_ls_remote() {
@@ -110,26 +110,3 @@ ACTUAL="$(nvm_get_download_slug iojs source 15.99.99)"
 EXPECTED="iojs-15.99.99"
 [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
 REAL_OS="$(command uname -s 2>/dev/null || echo '')"
 REAL_ARCH="$(command uname -m 2>/dev/null || echo '')"
 if [ "${REAL_OS}" = "Darwin" ] && [ "${REAL_ARCH}" = "arm64" ]; then
  # Node < 16 uses x64 on darwin-arm64
  ACTUAL="$(nvm_get_download_slug node binary 14.21.3)"
  EXPECTED='node-14.21.3-darwin-x64'
  [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
  ACTUAL="$(nvm_get_download_slug node binary 15.99.99)"
  EXPECTED='node-15.99.99-darwin-x64'
  [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
  ACTUAL="$(nvm_get_download_slug iojs binary 15.99.99)"
  EXPECTED='iojs-15.99.99-darwin-x64'
  [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
  # Test Node >= 16 uses arm64 on darwin-arm64
  ACTUAL="$(nvm_get_download_slug node binary 16.0.0)"
  EXPECTED='node-16.0.0-darwin-arm64'
  [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
  ACTUAL="$(nvm_get_download_slug node binary 18.0.0)"
  EXPECTED='node-18.0.0-darwin-arm64'
  [ "${ACTUAL}" = "${EXPECTED}" ] || die "expected >${EXPECTED}<, got >${ACTUAL}<"
 fi
@@ -3,7 +3,7 @@
 die () { echo "$@" ; cleanup ; exit 1; }
 cleanup() {
-  unset -f nvm_has nvm_has_executable
+  unset -f nvm_has
 }
 : nvm.sh
@@ -12,7 +12,6 @@ cleanup() {
 \. ../../common.sh
 nvm_has() { return 1 ; }
 nvm_has_executable() { return 1 ; }
 try_err nvm_get_latest
 [ "_$CAPTURED_STDERR" = "_nvm needs curl or wget to proceed." ] \
@@ -14,14 +14,6 @@ die () { >&2 echo "$@" ; cleanup ; exit 1; }
 : nvm.sh
 \. ../../../nvm.sh
 # v0.12.18 predates musl binaries and the expected output hardcodes the glibc
 # x64 tarball URL, so on Alpine nvm would request a nonexistent -musl build.
 # The progress-bar behavior is not OS-specific, so skip below the musl floor.
 if [ -f "/etc/alpine-release" ]; then
  echo 'on Alpine; skipping (v0.12.18 has no musl binary)'
  exit 0
 fi
 cleanup
 OUTPUT="$(TERM=dumb 2>&1 nvm install --no-progress v0.12.18)"
@@ -1,24 +1,10 @@
 #!/bin/sh
-die () { echo "$@" ; cleanup ; exit 1; }
+die () { echo "$@" ; exit 1; }
 cleanup() {
  rm -rf "${TEST_DIR-}"
  unset NVMRC_CONTENT OUTPUT EXIT_CODE TEST_DIR NVM_DIR
 }
 : nvm.sh
 \. ../../../nvm.sh
 \. ../../common.sh
 # an isolated NVM_DIR with a single known version, so that ambient versions
 # and aliases can not affect any assertions
 TEST_DIR="${PWD}/nvm_ls_hash_pattern_tmp"
 mkdir -p "${TEST_DIR}/versions/node/v24.13.0/bin" || die 'failed to create test version dir'
 make_echo "${TEST_DIR}/versions/node/v24.13.0/bin/node" 'v24.13.0' || die 'failed to create test node binary'
 NVM_DIR="${TEST_DIR}"
 # Test: nvm_ls with pattern containing # should not cause sed error
 # This is a regression test for https://github.com/nvm-sh/nvm/issues/3761
@@ -36,33 +22,3 @@ echo "$OUTPUT" | grep -q "invalid command code" && \
 # Should return N/A with exit code 3 (not found)
 [ "$EXIT_CODE" = "3" ] || die "nvm_ls 'foo#bar' should exit with code 3, got $EXIT_CODE"
 echo "$OUTPUT" | grep -q "N/A" || die "nvm_ls 'foo#bar' should output N/A, got: $OUTPUT"
 NVMRC_CONTENT='v24.13.0
 # krypton is the codename for Node.js v24.x'
 OUTPUT="$(nvm_ls "${NVMRC_CONTENT}" 2>&1)"
 EXIT_CODE=$?
 [ "$EXIT_CODE" = "0" ] || die "nvm_ls with .nvmrc comments should exit with code 0, got $EXIT_CODE"
 [ "$OUTPUT" = "v24.13.0" ] || die "nvm_ls with .nvmrc comments should output v24.13.0, got: $OUTPUT"
 OUTPUT="$(nvm_version "${NVMRC_CONTENT}" 2>&1)"
 [ "$OUTPUT" = "v24.13.0" ] || die "nvm_version with .nvmrc comments should output v24.13.0, got: $OUTPUT"
 # a partial version reaches nvm_ls's find/sed pipeline, which is where multiline
 # patterns used to break sed ("unterminated regular expression" on BSD sed,
 # "unterminated address regex" on GNU sed); a full x.y.z version takes the
 # explicit-version fast path and never reaches it
 NVMRC_CONTENT='24
 # krypton is the codename for Node.js v24.x'
 OUTPUT="$(nvm_ls "${NVMRC_CONTENT}" 2>&1)"
 EXIT_CODE=$?
 echo "$OUTPUT" | grep -q "unterminated" && \
  die "nvm_ls with partial version + comments caused a sed error: $OUTPUT"
 [ "$EXIT_CODE" = "0" ] || die "nvm_ls with partial version + comments should exit with code 0, got $EXIT_CODE"
 [ "$OUTPUT" = "v24.13.0" ] || die "nvm_ls with partial version + comments should output v24.13.0, got: $OUTPUT"
 cleanup
@@ -1,40 +0,0 @@
 #!/bin/sh
 WORK="$PWD/ls_remote-traversal-work.$$"
 export HOME="$WORK/home"
 export NVM_DIR="$HOME/.nvm"
 BASHRC="$HOME/.bashrc"
 cleanup() {
  unset -f die cleanup nvm_download
  rm -rf "$WORK"
 }
 die () { echo "$@" ; cleanup ; exit 1; }
 mkdir -p "$NVM_DIR/alias"
 : nvm.sh
 \. ../../../nvm.sh
 # a malicious/compromised mirror: the LTS codename field ($10) carries path
 # traversal, and the version field ($1) carries a command-substitution payload;
 # a valid codename (Iron) is included to prove real aliases still get written
 nvm_download() {
  printf 'version\tdate\tfiles\tnpm\tv8\tuv\tzlib\topenssl\tmodules\tlts\tsecurity\n'
  printf '$(>%s/pwned)\t2026-01-01\tlinux-x64\t-\t-\t-\t-\t-\t-\t../../../.bashrc\t-\n' "$WORK"
  printf 'v20.0.0\t2026-01-01\tlinux-x64\t-\t-\t-\t-\t-\t-\tIron\t-\n'
 }
 nvm_ls_remote >/dev/null 2>&1 || true
 [ ! -e "$BASHRC" ] || die "path traversal wrote outside the alias dir: $BASHRC was created"
 [ ! -e "$WORK/pwned" ] || die "mirror-supplied payload landed: $WORK/pwned was created"
 [ -f "$NVM_DIR/alias/lts/iron" ] || die "valid LTS alias lts/iron was not created"
 nvm_make_alias 'lts/../../../escape' 'v1.0.0' 2>/dev/null && die 'nvm_make_alias accepted a traversing alias name'
 [ ! -e "$NVM_DIR/../escape" ] || die 'nvm_make_alias wrote outside the alias dir'
 nvm_make_alias 'lts/carbon' 'v8.0.0' >/dev/null 2>&1 || die 'nvm_make_alias rejected a valid alias name'
 [ -f "$NVM_DIR/alias/lts/carbon" ] || die 'nvm_make_alias did not create a valid alias'
 cleanup
 echo "nvm_ls_remote LTS codename traversal: passed"
@@ -10,10 +10,6 @@ TEST_DIR="$(pwd)/nvm_offline_version_tmp"
 cleanup() {
  rm -rf "${TEST_DIR}"
  CACHE_DIR="$(nvm_cache_dir)"
  SUFFIX="$(nvm_get_os)-$(nvm_get_arch)"
  rm -rf "${CACHE_DIR}/bin/node-v0.99.98-${SUFFIX}" "${CACHE_DIR}/bin/iojs-v0.99.97-${SUFFIX}" \
    "${CACHE_DIR}/src/node-v0.99.96" "${CACHE_DIR}/src/iojs-v0.99.95"
 }
 [ ! -e "${TEST_DIR}" ] && mkdir -p "${TEST_DIR}"
@@ -40,33 +36,4 @@ try nvm_ls_cached "999.999"
 [ -z "$CAPTURED_STDOUT" ] \
  || die "nvm_ls_cached '999.999' should return empty; got '$CAPTURED_STDOUT'"
 # nvm_ls_cached should list bin- and src-cached artifacts, for node and io.js
 CACHE_DIR="$(nvm_cache_dir)"
 SUFFIX="$(nvm_get_os)-$(nvm_get_arch)"
 mkdir -p "${CACHE_DIR}/bin/node-v0.99.98-${SUFFIX}" "${CACHE_DIR}/bin/iojs-v0.99.97-${SUFFIX}" \
  "${CACHE_DIR}/src/node-v0.99.96" "${CACHE_DIR}/src/iojs-v0.99.95"
 try nvm_ls_cached "v0.99.98"
 [ "_$CAPTURED_STDOUT" = "_v0.99.98" ] \
  || die "nvm_ls_cached 'v0.99.98' should find the bin-cached node version; got '$CAPTURED_STDOUT'"
 try nvm_ls_cached "iojs-v0.99.97"
 [ "_$CAPTURED_STDOUT" = "_iojs-v0.99.97" ] \
  || die "nvm_ls_cached 'iojs-v0.99.97' should find the bin-cached io.js version; got '$CAPTURED_STDOUT'"
 try nvm_ls_cached "v0.99.96"
 [ "_$CAPTURED_STDOUT" = "_v0.99.96" ] \
  || die "nvm_ls_cached 'v0.99.96' should find the src-cached node version; got '$CAPTURED_STDOUT'"
 try nvm_ls_cached "iojs-v0.99.95"
 [ "_$CAPTURED_STDOUT" = "_iojs-v0.99.95" ] \
  || die "nvm_ls_cached 'iojs-v0.99.95' should find the src-cached io.js version; got '$CAPTURED_STDOUT'"
 # ... and nvm_offline_version should resolve them
 try nvm_offline_version "iojs-v0.99.95"
 [ "_$CAPTURED_STDOUT" = "_iojs-v0.99.95" ] \
  || die "nvm_offline_version 'iojs-v0.99.95' should resolve the src-cached io.js version; got '$CAPTURED_STDOUT'"
 [ "_$CAPTURED_EXIT_CODE" = "_0" ] \
  || die "nvm_offline_version 'iojs-v0.99.95' should exit 0; got '$CAPTURED_EXIT_CODE'"
 cleanup
@@ -1,38 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 \. ../../../nvm.sh
 set -ex
 # Test 1: all standard base64 characters (RFC 4648) are preserved
 STANDARD_B64="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
 RESULT=$(nvm_sanitize_auth_header "${STANDARD_B64}")
 [ "${RESULT}" = "${STANDARD_B64}" ] || die "FAIL: standard base64 chars were stripped. Got: '${RESULT}'"
 # Test 2: all base64url characters (RFC 4648 §5) are preserved
 B64URL="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_="
 RESULT=$(nvm_sanitize_auth_header "${B64URL}")
 [ "${RESULT}" = "${B64URL}" ] || die "FAIL: base64url chars were stripped. Got: '${RESULT}'"
 # Test 3: a real JWT Bearer token (base64url-encoded header.payload.signature) is preserved
 JWT_TOKEN="Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c"
 RESULT=$(nvm_sanitize_auth_header "${JWT_TOKEN}")
 [ "${RESULT}" = "${JWT_TOKEN}" ] || die "FAIL: JWT Bearer token chars were stripped. Got: '${RESULT}'"
 # Test 4: Basic auth (base64-encoded user:pass) is preserved
 BASIC_TOKEN="Basic dXNlcm5hbWU6cGFzc3dvcmQ="
 RESULT=$(nvm_sanitize_auth_header "${BASIC_TOKEN}")
 [ "${RESULT}" = "${BASIC_TOKEN}" ] || die "FAIL: Basic auth base64 token chars were stripped. Got: '${RESULT}'"
 # Test 5: dangerous shell metacharacters are removed
 DANGEROUS="Bearer token;\`evil\`-cmd \$(inject)"
 RESULT=$(nvm_sanitize_auth_header "${DANGEROUS}")
 case "${RESULT}" in
  *";"*|*"\`"*|*'$'*|*"("*|*")"*)
    die "FAIL: dangerous shell metacharacters survived sanitization. Got: '${RESULT}'"
    ;;
 esac
 echo "All nvm_sanitize_auth_header tests passed"
@@ -32,9 +32,9 @@ 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 shell metacharacters were removed
+# Verify that dangerous characters were removed
 case "${SANITIZED}" in
-  *";"*|*'$'*|*"\`"*)
+  *";"*|*"touch"*|*"/tmp"*)
    die "SECURITY FAILURE: Sanitization did not remove dangerous characters properly"
    ;;
 esac
@@ -1,15 +0,0 @@
 include config.mk
 all: out/fake-bin
 out/fake-bin: VERSION
 	mkdir -p out
 	printf '#!/bin/sh\necho %s\n' "$$(cat VERSION)" > out/fake-bin
 	chmod +x out/fake-bin
 install: all
 	mkdir -p "$(PREFIX)/bin"
 	cp out/fake-bin "$(PREFIX)/bin/node"
 	cp out/fake-bin "$(PREFIX)/bin/iojs"
 .PHONY: all install
@@ -1,22 +0,0 @@
 #!/bin/sh
 # a fake node/io.js `configure`, for source-install tests: real io.js (and
 # old node) can no longer be compiled on modern toolchains (python 2
 # `configure`, ancient V8), so source-install tests exercise nvm's entire
 # source pipeline against this tiny stand-in instead.
 PREFIX=''
 while [ $# -gt 0 ]; do
  case "${1}" in
    --prefix=*) PREFIX="${1#--prefix=}" ;;
  esac
  shift
 done
 if [ -z "${PREFIX}" ]; then
  echo 'configure: a --prefix is required' >&2
  exit 1
 fi
 printf 'PREFIX = %s\n' "${PREFIX}" > config.mk
 echo "configured with PREFIX=${PREFIX}"
@@ -1,44 +0,0 @@
 #!/bin/sh
 \. ../common.sh
 die () { echo "$@" ; exit 1; }
 \. ../../nvm.sh
 set -ex
 NVM_TEST_VERSION='v3.99.9'
 NVM_PREFIXED_TEST_VERSION="iojs-${NVM_TEST_VERSION}"
 # Remove the stuff we're clobbering.
 nvm uninstall "${NVM_TEST_VERSION}" || echo 'not installed'
 # Exercise nvm's entire source-install pipeline - cache, extract, configure,
 # make, make install, activation - against a tiny fake source tree, seeded
 # into the download cache and installed with --offline. This runs everywhere,
 # including on toolchains where real io.js can not compile; `install from
 # source` covers the real compile, in CI's gcc:4.9 container job.
 SLUG="$(nvm_get_download_slug iojs source "${NVM_TEST_VERSION}")"
 COMPRESSION="$(nvm_get_artifact_compression "${NVM_TEST_VERSION}")"
 CACHE_DIR="$(nvm_cache_dir)/src/${SLUG}"
 STAGING="$(mktemp -d)"
 mkdir -p "${STAGING}/${SLUG}" "${CACHE_DIR}"
 cp ../fixtures/fake-source-tarball/configure ../fixtures/fake-source-tarball/Makefile "${STAGING}/${SLUG}/"
 chmod +x "${STAGING}/${SLUG}/configure"
 echo "${NVM_TEST_VERSION}" > "${STAGING}/${SLUG}/VERSION"
 if [ "${COMPRESSION}" = 'tar.xz' ]; then
  (cd "${STAGING}" && tar -cJf "${CACHE_DIR}/${SLUG}.${COMPRESSION}" "${SLUG}")
 else
  (cd "${STAGING}" && tar -czf "${CACHE_DIR}/${SLUG}.${COMPRESSION}" "${SLUG}")
 fi
 rm -rf "${STAGING}"
 # Install from source
 nvm install -s --offline "${NVM_PREFIXED_TEST_VERSION}" || die "'nvm install -s --offline ${NVM_PREFIXED_TEST_VERSION}' failed"
 # Check
 nvm_is_version_installed "${NVM_PREFIXED_TEST_VERSION}" || die 'version not installed'
 nvm run --silent "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" || die "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"
 rm -rf "${CACHE_DIR}"
@@ -8,23 +8,6 @@ die () { echo "$@" ; exit 1; }
 set -ex
 # Compiling io.js requires a period toolchain: python 2 (its `configure`),
 # and gcc <= 5 (its bundled V8). CI compiles it for real in a gcc:4.9
 # container job; on modern toolchains, this can only be skipped
 # (`install from fake source` covers nvm's source pipeline everywhere).
 GCC_MAJOR="$(gcc -dumpversion 2>/dev/null | command cut -d. -f1)"
 if ! command -v python2 >/dev/null 2>&1 && ! python -V 2>&1 | command grep -q '^Python 2'; then
  echo 'python 2 is not available; skipping the io.js source install'
  exit 0
 fi
 case "${GCC_MAJOR}" in
  '' | *[!0-9]*) echo 'gcc is not available; skipping the io.js source install'; exit 0 ;;
 esac
 if [ "${GCC_MAJOR}" -gt 5 ]; then
  echo "gcc <= 5 is required to compile io.js, got ${GCC_MAJOR}; skipping the io.js source install"
  exit 0
 fi
 NVM_TEST_VERSION='v3.3.1'
 NVM_PREFIXED_TEST_VERSION="iojs-${NVM_TEST_VERSION}"
@@ -36,4 +19,4 @@ nvm uninstall "${NVM_TEST_VERSION}" || echo 'not installed'
 # Check
 nvm_is_version_installed "${NVM_PREFIXED_TEST_VERSION}" || die 'version not installed'
-nvm run --silent "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" || die "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"
+nvm run "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" || "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"
@@ -1,45 +0,0 @@
 #!/bin/sh
 die () { echo "$@" ; exit 1; }
 \. ../../nvm.sh
 set -ex
 NVM_TEST_VERSION='v3.99.8'
 NVM_PREFIXED_TEST_VERSION="iojs-${NVM_TEST_VERSION}"
 # Remove the stuff we're clobbering.
 nvm uninstall "${NVM_TEST_VERSION}" || echo 'not installed'
 # Exercise nvm's source-install pipeline against a tiny fake source tree,
 # seeded into the download cache and installed with --offline (see `install
 # from fake source`). This runs everywhere, including on toolchains where
 # real io.js can not compile; `install version specified in .nvmrc from
 # source` covers the real compile, in CI's gcc:4.9 container job.
 SLUG="$(nvm_get_download_slug iojs source "${NVM_TEST_VERSION}")"
 COMPRESSION="$(nvm_get_artifact_compression "${NVM_TEST_VERSION}")"
 CACHE_DIR="$(nvm_cache_dir)/src/${SLUG}"
 STAGING="$(mktemp -d)"
 mkdir -p "${STAGING}/${SLUG}" "${CACHE_DIR}"
 cp ../fixtures/fake-source-tarball/configure ../fixtures/fake-source-tarball/Makefile "${STAGING}/${SLUG}/"
 chmod +x "${STAGING}/${SLUG}/configure"
 echo "${NVM_TEST_VERSION}" > "${STAGING}/${SLUG}/VERSION"
 if [ "${COMPRESSION}" = 'tar.xz' ]; then
  (cd "${STAGING}" && tar -cJf "${CACHE_DIR}/${SLUG}.${COMPRESSION}" "${SLUG}")
 else
  (cd "${STAGING}" && tar -czf "${CACHE_DIR}/${SLUG}.${COMPRESSION}" "${SLUG}")
 fi
 rm -rf "${STAGING}"
 # Install from source, with the version specified in .nvmrc
 echo "${NVM_PREFIXED_TEST_VERSION}" > .nvmrc
 nvm install -s --offline || die "'nvm install -s --offline' failed"
 # Check
 nvm_is_version_installed "${NVM_PREFIXED_TEST_VERSION}" || die 'version is not installed'
 nvm run --silent "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" \
  || die "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"
 rm -rf "${CACHE_DIR}"
@@ -6,36 +6,18 @@ die () { echo "$@" ; exit 1; }
 set -ex
 # Compiling io.js requires a period toolchain: python 2 (its `configure`),
 # and gcc <= 5 (its bundled V8). CI compiles it for real in a gcc:4.9
 # container job; on modern toolchains, this can only be skipped
 # (`install version specified in .nvmrc from fake source` covers nvm's
 # source pipeline everywhere).
 GCC_MAJOR="$(gcc -dumpversion 2>/dev/null | command cut -d. -f1)"
 if ! command -v python2 >/dev/null 2>&1 && ! python -V 2>&1 | command grep -q '^Python 2'; then
  echo 'python 2 is not available; skipping the io.js source install'
  exit 0
 fi
 case "${GCC_MAJOR}" in
  '' | *[!0-9]*) echo 'gcc is not available; skipping the io.js source install'; exit 0 ;;
 esac
 if [ "${GCC_MAJOR}" -gt 5 ]; then
  echo "gcc <= 5 is required to compile io.js, got ${GCC_MAJOR}; skipping the io.js source install"
  exit 0
 fi
 NVM_TEST_VERSION='v3.3.0'
 NVM_PREFIXED_TEST_VERSION="iojs-${NVM_TEST_VERSION}"
 # Remove the stuff we're clobbering.
 nvm uninstall "${NVM_TEST_VERSION}" || echo 'not installed'
-# Install from source, with the version specified in .nvmrc
+# Install from binary
 echo "${NVM_PREFIXED_TEST_VERSION}" > .nvmrc
-nvm install -s || die "'nvm install -s' failed"
+nvm install -s || "'nvm install -s' failed"
 # Check
 nvm_is_version_installed "${NVM_PREFIXED_TEST_VERSION}" || die 'version is not installed'
-nvm run --silent "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" \
+nvm run "${NVM_PREFIXED_TEST_VERSION}" --version | grep "${NVM_TEST_VERSION}" \
  || die "'nvm run ${NVM_PREFIXED_TEST_VERSION} --version | grep ${NVM_TEST_VERSION}' failed"
@@ -6,8 +6,6 @@ nvm uninstall iojs-v1.0.0
 nvm uninstall iojs-v1.0.3
 nvm uninstall iojs-v3.3.0
 nvm uninstall iojs-v3.3.1
 nvm uninstall iojs-v3.99.8
 nvm uninstall iojs-v3.99.9
 if [ -f ".nvmrc" ]; then
  rm .nvmrc
@@ -72,19 +72,19 @@ npm list --global | grep object-is > /dev/null || die "object-is isn't installed
 # install a fresh global package on the source (v9.7.0) only
 nvm use 9.7.0
-npm install -g is-nan@1.0.1 || die "npm install -g is-nan failed"
+npm install -g is-nan@1.0.0 || die "npm install -g is-nan failed"
-npm list --global --depth=0 | grep is-nan > /dev/null || die "is-nan isn't installed on v9.7.0"
+npm list --global | grep is-nan > /dev/null || die "is-nan isn't installed on v9.7.0"
 # precondition: the already-installed target (v9.10.0) must not have it yet
 nvm use 9.10.0
-npm list --global --depth=0 | grep is-nan > /dev/null && die "is-nan should not be installed on v9.10.0 before reinstall"
+npm list --global | grep is-nan > /dev/null && die "is-nan should not be installed on v9.10.0 before reinstall"
 # target is already installed, so this should report so AND still migrate packages
 OUTPUT="$(nvm install --reinstall-packages-from=9.7.0 9.10.0 2>&1)" || die "nvm install --reinstall-packages-from=9.7.0 9.10.0 failed: ${OUTPUT}"
 nvm_echo "${OUTPUT}" | grep "is already installed" > /dev/null || die "expected 'already installed' message, got: ${OUTPUT}"
 nvm use 9.10.0
-npm list --global --depth=0 | grep is-nan > /dev/null || die "is-nan was not migrated to already-installed v9.10.0"
+npm list --global | grep is-nan > /dev/null || die "is-nan was not migrated to already-installed v9.10.0"
 # ...the same is true for default packages: they must install on the already-installed path too.
@@ -99,11 +99,11 @@ nvm_echo 'object-inspect@1.0.2' > "${DEFAULT_PACKAGES_FILE}"
 # precondition: the already-installed target must not have the default package yet
 nvm use 9.10.0
-npm list --global --depth=0 | grep object-inspect > /dev/null && die "object-inspect should not be installed on v9.10.0 before default-packages test"
+npm list --global | grep object-inspect > /dev/null && die "object-inspect should not be installed on v9.10.0 before default-packages test"
 nvm install 9.10.0 > /dev/null 2>&1 || die "nvm install 9.10.0 (already installed, default-packages) failed"
 nvm use 9.10.0
-npm list --global --depth=0 | grep object-inspect > /dev/null || die "default packages were not installed on already-installed v9.10.0"
+npm list --global | grep object-inspect > /dev/null || die "default packages were not installed on already-installed v9.10.0"
 # restore the default-packages file before the next assertion
 cleanup
@@ -1,5 +0,0 @@
 if [ "_$1" = "_-m" ]; then
  echo "loongarch64"
 else
  echo "Linux foo 6.12.54-16k #0 SMP PREEMPT_DYNAMIC Fri Dec  5 12:35:43 UTC loongarch64 GNU/Linux"
 fi
@@ -6,6 +6,4 @@ die () { echo "$@" ; exit 1; }
 nvm use 0.10
-# note: in a BRE, `[options]` is a bracket expression, so the literal `[options]`
+nvm exec stable -- node --help | grep 'Usage: node [options]' || die "Help menu should have been displayed for node and not nvm"
 # in node's help output could never match; match the unbracketed prefix instead
 nvm exec stable -- node --help | grep 'Usage: node' || die "Help menu should have been displayed for node and not nvm"
@@ -1,51 +1,30 @@
 #!/bin/sh
-die () { echo "$@" ; cleanup ; exit 1; }
+die () { echo "$@" ; exit 1; }
 # Source nvm
 \. ../../../nvm.sh
-\. ../../common.sh
+# Version to install/uninstall
 NVM_TEST_VERSION=5.10.1
-NVM_TEST_VERSION=v5.99.99
+# Make sure it's not already here
 [ -e ../../../$NVM_TEST_VERSION ] && rm -R ../../../$NVM_TEST_VERSION
-cleanup() {
+# Install it
-  VERSION_PATH="${VERSION_PATH-}"
+nvm install $NVM_TEST_VERSION
  if [ -n "${VERSION_PATH}" ] && [ -d "${VERSION_PATH}" ]; then
    sudo -n rm -f "${VERSION_PATH}/lib/root-owned-file" 2>/dev/null
    rm -rf "${VERSION_PATH}"
  fi
 }
-# The permissions check only trips on files that are neither writable nor
+# Make sure it installed
-# self-owned, and creating one requires another user: skip where passwordless
+nvm ls | grep "$NVM_TEST_VERSION" || die "Failed to install node"
 # sudo is unavailable; CI always has it.
 if ! sudo -n true 2>/dev/null; then
  echo 'passwordless sudo is not available, skipping'
  exit 0
 fi
-# Install a fake version to uninstall
+# Install global module as root
-make_fake_node "${NVM_TEST_VERSION}" || die 'unable to make fake node'
+npm_path=$(which npm)
-VERSION_PATH="$(nvm_version_path "${NVM_TEST_VERSION}")"
+sudo -n "$npm_path" install jspm@'<2' -g || die 'either sudo failed, or `npm install jspm -g` failed`'
-# Make part of the installation folder unwritable, and not self-owned
+# Switch to another version so we can uninstall
-mkdir -p "${VERSION_PATH}/lib"
+nvm use 0.12.7
 sudo -n touch "${VERSION_PATH}/lib/root-owned-file" || die 'sudo touch failed'
 sudo -n chmod 444 "${VERSION_PATH}/lib/root-owned-file" || die 'sudo chmod failed'
 # Make sure the version to uninstall is not the active one
 nvm deactivate >/dev/null 2>&1 || true
 # Attempt to uninstall it
-RETURN_MESSAGE="$(nvm uninstall "${NVM_TEST_VERSION}" 2>&1)"
+RETURN_MESSAGE="$(nvm uninstall $NVM_TEST_VERSION 2>&1)"
 CHECK_FOR="Cannot uninstall, incorrect permissions on installation folder"
-case "${RETURN_MESSAGE}" in
+test "${RETURN_MESSAGE#*$CHECK_FOR}" != "$RETURN_MESSAGE" || die "Failed to show error message"
  *"${CHECK_FOR}"*) ;;
  *) die "Failed to show error message; got: ${RETURN_MESSAGE}" ;;
 esac
 # ... and the version must not have been removed
 nvm_is_version_installed "${NVM_TEST_VERSION}" || die 'version was uninstalled despite the permissions error'
 cleanup
@@ -2,46 +2,37 @@
 die () { echo "$@" ; cleanup ; exit 1; }
 WORK="$PWD/nvm_get_latest-work.$$"
 TEST_BIN="$WORK/bin"
 cleanup() {
-  unset -f curl wget
+  unset -f curl wget nvm_has
  rm -rf "$WORK"
  export PATH="$OLDPATH"
 }
 \. ../../../nvm.sh
 \. ../../common.sh
 OLDPATH="$PATH"
 EXPECTED_VERSION="v12.3.456"
 URL="https://github.com/nvm-sh/nvm/releases/tag/$EXPECTED_VERSION"
 EXPECTED_CURL_ARGS="--compressed -q -w %{url_effective}\n -L -s -S https://latest.nvm.sh -o /dev/null"
 EXPECTED_WGET_ARGS="-q https://latest.nvm.sh --server-response -O /dev/null"
 export URL EXPECTED_CURL_ARGS EXPECTED_WGET_ARGS
-VERSION_MESSAGE="
+curl() {
  if [ $# -eq 1 ] && [ "$1" = "-V" ]; then
    echo "
 curl 7.47.0 (x86_64-pc-linux-gnu) libcurl/7.47.0 GnuTLS/3.4.10 zlib/1.2.8 libidn/1.32 librtmp/2.3
 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp smb smbs smtp smtps telnet tftp
 Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP UnixSockets"
-
+  elif [ "_$*" != "_$EXPECTED_CURL_ARGS" ]; then
-# fake curl/wget: `command curl` bypasses shell functions, so the mocks must be executables on PATH
+    echo >&2 "expected args ($EXPECTED_CURL_ARGS), got ($*)"
-make_fake_curl "$TEST_BIN" 'if [ "_$*" != "_$EXPECTED_CURL_ARGS" ]; then
+    return 1
-  echo >&2 "expected args ($EXPECTED_CURL_ARGS), got ($*)"
+  else
-  exit 1
+    echo $URL
-fi
+  fi
-echo "$URL"'
+}
-
+wget() {
-cat > "$TEST_BIN/wget" <<'OUTER'
+  if [ "_$*" != "_$EXPECTED_WGET_ARGS" ]; then
-#!/bin/sh
+    echo >&2 "expected args ($EXPECTED_WGET_ARGS), got ($*)"
-if [ "_$*" != "_$EXPECTED_WGET_ARGS" ]; then
+    return 1
-  echo >&2 "expected args ($EXPECTED_WGET_ARGS), got ($*)"
+  else
-  exit 1
+    local WGET_CONTENTS
-fi
+    WGET_CONTENTS="
 cat >&2 <<CONTENTS
  HTTP/1.1 301 Moved Permanently
  Location: https://github.com/nvm-sh/nvm/releases/latest
  Content-Type: text/html; charset=utf-8
@@ -91,23 +82,16 @@ cat >&2 <<CONTENTS
  X-Content-Type-Options: nosniff
  Vary: Accept-Encoding
  X-Served-By: 926b734ea1992f8ee1f88ab967a93dac
-CONTENTS
+"
-OUTER
+    "$WGET_CONTENTS" | while read line
-chmod +x "$TEST_BIN/wget"
+    do
-
+      >&2 echo "$line"
-export PATH="$TEST_BIN:$OLDPATH"
+    done
-
+  fi
 # shadowing shell functions, like aliases baked into a user's shell, must be
 # bypassed in favor of the executables on PATH (https://github.com/nvm-sh/nvm/issues/2923)
 curl() {
  echo >&2 'the shadowing curl function was called'
  return 1
 }
 wget() {
  echo >&2 'the shadowing wget function was called'
  return 1
 }
 \. ../../common.sh
 try nvm_get_latest
 [ "_$CAPTURED_STDOUT" = "_$EXPECTED_VERSION" ] \
  || die "success path did not return version '$EXPECTED_VERSION', got '$CAPTURED_STDOUT'"
@@ -2,26 +2,20 @@
 die () { echo "$@" ; cleanup ; exit 1; }
 WORK="$PWD/nvm_get_latest_failed_redirect-work.$$"
 TEST_BIN="$WORK/bin"
 cleanup() {
-  rm -rf "$WORK"
+  unset -f curl wget
  export PATH="$OLDPATH"
 }
 \. ../../../nvm.sh
 \. ../../common.sh
-OLDPATH="$PATH"
+curl() {
-
+  return 1
-# fake curl/wget: `command curl` bypasses shell functions, so the mocks must be executables on PATH
+}
-make_fake_curl "$TEST_BIN" 'exit 1'
+wget() {
-printf '#!/bin/sh\nexit 1\n' > "$TEST_BIN/wget"
+  return 1
-chmod +x "$TEST_BIN/wget"
+}
 export PATH="$TEST_BIN:$OLDPATH"
 try_err nvm_get_latest
 [ "_$CAPTURED_STDERR" = "_https://latest.nvm.sh did not redirect to the latest release on GitHub" ] \