Initial plan

2026-07-20 05:48:22 +08:00 · 2026-07-02 17:33:13 +00:00
58 changed files with 212 additions and 1588 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() {
@@ -117,35 +105,21 @@ nvm_node_version() {
 }

 nvm_download() {
-  if nvm_has_executable "curl"; then
-    command curl --fail --compressed -q "$@"
-  elif nvm_has_executable "wget"; then
+  if nvm_has "curl"; then
+    curl --fail --compressed -q "$@"
+  elif nvm_has "wget"; then
    # Emulate curl with wget
-    local NVM_DOWNLOAD_WGET_COUNT
-    NVM_DOWNLOAD_WGET_COUNT=$#
-    local NVM_DOWNLOAD_WGET_SKIP
-    NVM_DOWNLOAD_WGET_SKIP=0
-    local NVM_DOWNLOAD_WGET_ARG
-    for NVM_DOWNLOAD_WGET_ARG in "$@"; do
-      if [ "${NVM_DOWNLOAD_WGET_SKIP}" = '1' ]; then
-        NVM_DOWNLOAD_WGET_SKIP=0
-        continue
-      fi
-      case "${NVM_DOWNLOAD_WGET_ARG}" in
-        '--progress-bar') set -- "$@" '--progress=bar' ;;
-        '--compressed') : ;;
-        '--fail') : ;;
-        '-L') : ;;
-        '-I') set -- "$@" '--server-response' ;;
-        '-s') set -- "$@" '-q' ;;
-        '-sS') set -- "$@" '-nv' ;;
-        '-o') set -- "$@" '-O' ;;
-        '-C') NVM_DOWNLOAD_WGET_SKIP=1; set -- "$@" '-c' ;;
-        *) set -- "$@" "${NVM_DOWNLOAD_WGET_ARG}" ;;
-      esac
-    done
-    shift "${NVM_DOWNLOAD_WGET_COUNT}"
-    command wget "$@"
+    ARGS=$(nvm_echo "$@" | command sed -e 's/--progress-bar /--progress=bar /' \
+                            -e 's/--compressed //' \
+                            -e 's/--fail //' \
+                            -e 's/-L //' \
+                            -e 's/-I /--server-response /' \
+                            -e 's/-s /-q /' \
+                            -e 's/-sS /-nv /' \
+                            -e 's/-o /-O /' \
+                            -e 's/-C - /-c /')
+    # shellcheck disable=SC2086
+    eval wget $ARGS
  fi
 }

@@ -427,7 +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'
@@ -440,7 +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
@@ -522,7 +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 ${CURL_COMPRESSED_FLAG:-} -q -w "%{url_effective}\\n" -L -s -S https://latest.nvm.sh -o /dev/null)"
-  elif nvm_has_executable "wget"; then
-    NVM_LATEST_URL="$(command wget -q https://latest.nvm.sh --server-response -O /dev/null 2>&1 | command awk '/^  Location: /{DEST=$2} END{ print DEST }')"
+    NVM_LATEST_URL="$(curl ${CURL_COMPRESSED_FLAG:-} -q -w "%{url_effective}\\n" -L -s -S https://latest.nvm.sh -o /dev/null)"
+  elif nvm_has "wget"; then
+    NVM_LATEST_URL="$(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+/=)
-    # and base64url (A-Za-z0-9-_=) charsets, plus the space, colon, dot, and
-    # 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'
+    # Remove potentially dangerous characters
+    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() {
-  local NVMRC_CONTENT
-  NVMRC_CONTENT="${1-}"
+nvm_process_nvmrc() {
+  local NVMRC_PATH
+  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
-    # 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}"
+  command sed 's/#.*//; s/[[:space:]]*$//' "${NVM_ALIAS_PATH}" | command awk 'NF'
 }

 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="
-${ALIAS}
-"
+  SEEN_ALIASES="${ALIAS}"
+  local NVM_ALIAS_INDEX
+  NVM_ALIAS_INDEX=1
  while true; do
-    ALIAS_OUTPUT="$(nvm_alias "${ALIAS}" 2>/dev/null)" || ALIAS_OUTPUT=''
-    ALIAS_TEMP="${ALIAS_OUTPUT%%
-*}"
+    ALIAS_TEMP="$( (nvm_alias "${ALIAS}" 2>/dev/null | command head -n "${NVM_ALIAS_INDEX}" | command tail -n 1) || nvm_echo)"

    if [ -z "${ALIAS_TEMP}" ]; then
      break
    fi

-    case "${SEEN_ALIASES}" in
-      *"
-${ALIAS_TEMP}
-"*)
-        ALIAS="∞"
-        break
-      ;;
-    esac
+    if command printf '%b' "${SEEN_ALIASES}" | nvm_grep -q -e "^${ALIAS_TEMP}$"; then
+      ALIAS="∞"
+      break
+    fi

-    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" ] && [ "_${NVM_OS}" = "_linux" ]; then
-    # Alpine Linux uses musl libc; map to musl variants where available
-    # See https://unofficial-builds.nodejs.org/download/release/
+  if [ -f "/etc/alpine-release" ]; then
+    # Alpine Linux uses musl libc; only x64-musl binaries are available
    case "${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
-  # https://github.com/nodejs/node/issues/40126 (binary distributions aren't available until v16)
-  if nvm_version_greater '16.0.0' "${VERSION}" && [ "_${NVM_OS}" = '_darwin' ] && [ "${NVM_ARCH}" = 'arm64' ]; then
-    NVM_ARCH=x64
+  # If running MAC M1 :: Node v14.17.0 was the first version to offer official experimental support:
+  # https://github.com/nodejs/node/issues/40126 (although binary distributions aren't available until v16)
+  if \
+    nvm_version_greater '14.17.0' "${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
-  NVM_CACHE_DIR="$(nvm_cache_dir)"
+  local CACHE_BIN_DIR
+  CACHE_BIN_DIR="$(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}-${NVM_ARCH}"
-  {
-    if [ -d "${NVM_CACHE_DIR}/bin" ]; then
-      # shellcheck disable=SC2010
-      command ls -1 "${NVM_CACHE_DIR}/bin" \
-        | nvm_grep "^\\(node\\|iojs\\)-v[0-9][0-9.]*-${SUFFIX}\$" \
-        | command sed "s/-${SUFFIX}\$//"
-    fi
-    if [ -d "${NVM_CACHE_DIR}/src" ]; then
-      # shellcheck disable=SC2010
-      command ls -1 "${NVM_CACHE_DIR}/src" \
-        | nvm_grep "^\\(node\\|iojs\\)-v[0-9][0-9.]*\$"
-    fi
-  } \
-    | command sed 's/^node-//' \
+  # shellcheck disable=SC2010
+  command ls -1 "${CACHE_BIN_DIR}" \
+    | nvm_grep "^node-v.*-${SUFFIX}\$" \
+    | command sed "s/^node-\\(v[0-9][0-9.]*\\)-${SUFFIX}\$/\\1/" \
    | 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
-# versions, and skip its trailing `system <version>` line)
-INSTALLED_VERSION="$(nvm_ls | command grep -v '^system' | command tail -n1)"
-if [ -n "${INSTALLED_VERSION}" ] && [ "_${INSTALLED_VERSION}" != '_N/A' ]; then
+INSTALLED_VERSION="$(nvm ls | command tail -1 | command awk '{print $1}' | command sed 's/\x1b\[[0-9;]*m//g')"
+if [ -n "${INSTALLED_VERSION}" ] && [ "_${INSTALLED_VERSION}" != '_N/A' ] && [ "_${INSTALLED_VERSION}" != '_system' ]; then
  try nvm install --offline "${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"
-  export PATH="$OLDPATH"
+  unset -f curl
 }

 die() { cleanup; echo "$@" ; exit 1; }
@@ -13,28 +9,32 @@ die() { cleanup; echo "$@" ; exit 1; }
 : nvm.sh
 \. ../../../nvm.sh

-\. ../../common.sh
-
-OLDPATH="$PATH"
-
-make_fake_curl "$TEST_BIN"
-
-export PATH="$TEST_BIN:$OLDPATH"
-
-# curl with libz feature
-VERSION_MESSAGE="
+curl() {
+    # curl with 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/2.3
 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
-VERSION_MESSAGE="
+unset -f curl
+
+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
-
-OLDPATH="$PATH"
-
-make_fake_curl "$TEST_BIN"
-
-export PATH="$TEST_BIN:$OLDPATH"
+curl() {
+  if [ "$1" = "-V" ]; then
+    echo "${VERSION_MESSAGE}"
+  fi
+}

 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="$WORK/bin"
-
 cleanup () {
-  unset -f die cleanup assert_version_is
-  rm -rf "$WORK"
-  export PATH="$OLDPATH"
+  unset -f die
+  unset -f curl
 }

 die () { echo -e "$@" ; cleanup ;  exit 1; }

 NVM_ENV=testing \. ../../../nvm.sh

-\. ../../common.sh
-
-OLDPATH="$PATH"
-
-make_fake_curl "$TEST_BIN"
-
-export PATH="$TEST_BIN:$OLDPATH"
+curl() {
+  if [ "$1" = "-V" ]; then
+    echo "${VERSION_MESSAGE}"
+  fi
+}

 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
-# through to the real host; on Alpine that host is linux and picks up the musl
-# 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
+run_test arm64 smartos x64
+run_test armv8l smartos x64

 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
-# the -musl suffix, since unofficial-builds publishes musl binaries for both.
+# On Alpine (where /etc/alpine-release exists), x64 should get -musl suffix
+# 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
-# /lib64, coreutils binaries). On musl Alpine that setup does not apply, and
-# 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}"
+setup_chroot "${CHROOT_WITH_ALPINE}"
+setup_chroot "${CHROOT_WITHOUT_ALPINE}"

-  # Run tests in chroot environments
-  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 ${ARCH_WITH_ALPINE}"
+# Run tests in chroot environments
+ARCH_WITH_ALPINE=$(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_WITHOUT_ALPINE=$(sudo chroot "${CHROOT_WITHOUT_ALPINE}" /bin/sh -c ". ./nvm.sh && nvm_get_arch")
-  [ "${ARCH_WITHOUT_ALPINE}" != "x64-musl" ] || die "Did not expect x64-musl for non-alpine environment"
-fi
+ARCH_WITHOUT_ALPINE=$(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"

 # 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 "$@" ; cleanup ; exit 1; }
-
-cleanup() {
-  rm -rf "${TEST_DIR-}"
-  unset NVMRC_CONTENT OUTPUT EXIT_CODE TEST_DIR NVM_DIR
-}
+die () { echo "$@" ; exit 1; }

 : 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}"
@@ -63,15 +63,9 @@ test_install_data() {
    echo "$current_ref" | grep -q "$ref" || die "install_nvm_from_git ${message} did not clone with ref ${ref}"
  fi

-  if [ -n "${avoid_ref}" ] && echo "${current_ref}" | grep -q "${avoid_ref}"; then
-    # the avoided tag decorating HEAD is only legitimate if HEAD really is that
-    # tag's commit in the installed clone (eg master released at that tag); query
-    # the clone itself, not the caller's checkout, so the trigger ref cannot skew it
-    local avoid_changeset
-    avoid_changeset="$(git --git-dir "$NVM_DIR"/.git rev-parse --verify --quiet "refs/tags/${avoid_ref}^{commit}" 2>/dev/null)"
-    if [ "${avoid_changeset}" != "${current_changeset}" ]; then
-      die "install_nvm_from_git ${message} did clone with unwanted ref ${avoid_ref}"
-    fi
+  local head_ref="$(git for-each-ref --points-at HEAD --format='%(refname:short)' 'refs/tags/')"
+  if [ -n "${avoid_ref}" ] && [ "${head_ref}" != "${avoid_ref}" ]; then
+    echo "${current_ref}" | grep -q "$avoid_ref" && die "install_nvm_from_git ${message} did clone with unwanted ref ${avoid_ref}"
  fi

  if [ -n "$changeset" ]; then
@@ -1,99 +0,0 @@
-#!/bin/sh
-
-OLDPATH="$PATH"
-WORK="$PWD/nvm_download-noeval-work.$$"
-TEST_BIN="$WORK/bin"
-ARGV_LOG="$WORK/argv.log"
-PROOF="$WORK/nvm_injection_proof"
-
-cleanup() {
-  unset -f die cleanup
-  rm -rf "$WORK"
-  export PATH="$OLDPATH"
-}
-die () { echo "$@" ; cleanup ; exit 1; }
-
-NVM_ENV=testing \. ../../install.sh
-
-mkdir -p "$TEST_BIN"
-
-# fake curl/wget: record each received argument verbatim, then succeed
-{
-  echo '#!/bin/sh'
-  echo ': > "$ARGV_LOG"'
-  echo 'for a in "$@"; do printf "%s\n" "$a" >> "$ARGV_LOG"; done'
-  echo 'exit 0'
-} > "$TEST_BIN/curl"
-chmod +x "$TEST_BIN/curl"
-cp "$TEST_BIN/curl" "$TEST_BIN/wget"
-
-# the wget-path calls below restrict PATH to $TEST_BIN so that no real curl is
-# found; link sed and touch in so that a regression to the old sed|eval
-# implementation fails this test by actually injecting, rather than by failing
-# to find the binaries the injection needs
-ln -s "$(command -v sed)" "$TEST_BIN/sed"
-ln -s "$(command -v touch)" "$TEST_BIN/touch"
-
-export ARGV_LOG
-export PATH="$TEST_BIN:$OLDPATH"
-
-URL="https://raw.githubusercontent.com/nvm-sh/nvm/HEAD/nvm.sh"
-
-# given a url containing command-substitution syntax
-INJECT_URL="http://example.test/v1\$(touch ${PROOF})/x"
-
-# when nvm_download is invoked (curl path)
-rm -f "$PROOF"
-nvm_download "$INJECT_URL" -o - || die 'nvm_download (curl) returned nonzero on injection url'
-# then the substitution must not have executed
-[ ! -e "$PROOF" ] || die "command injection fired via curl path: proof file was created"
-# and curl must have received the url as one literal argument
-grep -Fxq "$INJECT_URL" "$ARGV_LOG" || die "curl did not receive the url as a single literal argument; got: $(cat "$ARGV_LOG")"
-
-# given curl is unavailable (the wget-path calls run with PATH limited to our
-# fake wget, so neither the fake nor the system curl is found)
-rm -f "$TEST_BIN/curl"
-
-# when nvm_download is invoked with the injection url (wget path)
-rm -f "$PROOF"
-( PATH="$TEST_BIN"; export PATH; nvm_download "$INJECT_URL" -o - ) || die 'nvm_download (wget) returned nonzero on injection url'
-# then the substitution must not have executed
-[ ! -e "$PROOF" ] || die "command injection fired via wget path: proof file was created"
-grep -Fxq "$INJECT_URL" "$ARGV_LOG" || die "wget did not receive the url as a single literal argument; got: $(cat "$ARGV_LOG")"
-
-# given an output path containing a space, as a real $NVM_DIR may
-SPACED_DIR="$WORK/dir with space"
-SPACED="$SPACED_DIR/nvm.sh"
-mkdir -p "$SPACED_DIR"
-
-# when nvm_download is invoked with it (wget path)
-( PATH="$TEST_BIN"; export PATH; nvm_download -s "$URL" -o "$SPACED" ) || die 'nvm_download (wget) returned nonzero on spaced output path'
-# then wget receives it as one argument rather than word-split
-grep -Fxq "$SPACED" "$ARGV_LOG" || die "wget did not receive the spaced output path as a single argument; got: $(cat "$ARGV_LOG")"
-
-# given a url with an ampersand in its query string, as a real mirror may
-AMP_URL="http://example.test/nvm.sh?a=1&b=2"
-
-# when nvm_download is invoked with it (wget path)
-( PATH="$TEST_BIN"; export PATH; nvm_download -s "$AMP_URL" -o - ) || die 'nvm_download (wget) returned nonzero on ampersand url'
-# then the url is passed intact rather than backgrounding the command
-grep -Fxq "$AMP_URL" "$ARGV_LOG" || die "wget did not receive the ampersand url intact; got: $(cat "$ARGV_LOG")"
-
-# when invoked with -L -C - --progress-bar URL -o FILE (wget path)
-FILE="$WORK/target"
-( PATH="$TEST_BIN"; export PATH; nvm_download -L -C - --progress-bar "$URL" -o "$FILE" ) || die 'nvm_download (wget) returned nonzero on normal url'
-# then flags are translated to wget equivalents
-grep -Fxqe "-c" "$ARGV_LOG" || die "wget did not translate -C - to -c; got: $(cat "$ARGV_LOG")"
-grep -Fxqe "--progress=bar" "$ARGV_LOG" || die "wget did not translate --progress-bar; got: $(cat "$ARGV_LOG")"
-grep -Fxqe "-O" "$ARGV_LOG" || die "wget did not translate -o to -O; got: $(cat "$ARGV_LOG")"
-grep -Fxqe "-L" "$ARGV_LOG" && die "wget should drop -L; got: $(cat "$ARGV_LOG")"
-grep -Fxqe "-C" "$ARGV_LOG" && die "wget should not pass -C through; got: $(cat "$ARGV_LOG")"
-grep -Fxqe "-" "$ARGV_LOG" && die "wget should drop the lone - after -C; got: $(cat "$ARGV_LOG")"
-
-# when invoked with -s (wget path)
-( PATH="$TEST_BIN"; export PATH; nvm_download -s "$URL" -o "$FILE" ) || die 'nvm_download (wget) returned nonzero on -s url'
-# then -s becomes -q
-grep -Fxqe "-q" "$ARGV_LOG" || die "wget did not translate -s to -q; got: $(cat "$ARGV_LOG")"
-
-cleanup
-echo "nvm_download no eval injection: passed"
@@ -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 list --global --depth=0 | grep is-nan > /dev/null || die "is-nan isn't installed on v9.7.0"
+npm install -g is-nan@1.0.0 || die "npm install -g is-nan failed"
+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]`
-# 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"
+nvm exec stable -- node --help | grep 'Usage: node [options]' || 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() {
-  VERSION_PATH="${VERSION_PATH-}"
-  if [ -n "${VERSION_PATH}" ] && [ -d "${VERSION_PATH}" ]; then
-    sudo -n rm -f "${VERSION_PATH}/lib/root-owned-file" 2>/dev/null
-    rm -rf "${VERSION_PATH}"
-  fi
-}
+# Install it
+nvm install $NVM_TEST_VERSION

-# The permissions check only trips on files that are neither writable nor
-# self-owned, and creating one requires another user: skip where passwordless
-# 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
+# Make sure it installed
+nvm ls | grep "$NVM_TEST_VERSION" || die "Failed to install node"

-# Install a fake version to uninstall
-make_fake_node "${NVM_TEST_VERSION}" || die 'unable to make fake node'
-VERSION_PATH="$(nvm_version_path "${NVM_TEST_VERSION}")"
+# Install global module as root
+npm_path=$(which npm)
+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
-mkdir -p "${VERSION_PATH}/lib"
-sudo -n touch "${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
+# Switch to another version so we can uninstall
+nvm use 0.12.7

 # 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
-  *"${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
+test "${RETURN_MESSAGE#*$CHECK_FOR}" != "$RETURN_MESSAGE" || die "Failed to show error message"
@@ -2,46 +2,37 @@

 die () { echo "$@" ; cleanup ; exit 1; }

-WORK="$PWD/nvm_get_latest-work.$$"
-TEST_BIN="$WORK/bin"
-
 cleanup() {
-  unset -f curl wget
-  rm -rf "$WORK"
-  export PATH="$OLDPATH"
+  unset -f curl wget nvm_has
 }

 \. ../../../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 ] && [ "$1" = "-V" ]; then
+    echo "
 curl 7.47.0 (x86_64-pc-linux-gnu) libcurl/7.47.0 GnuTLS/3.4.10 zlib/1.2.8 libidn/1.32 librtmp/2.3
 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp smb smbs smtp smtps telnet tftp
 Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP UnixSockets"
-
-# fake curl/wget: `command curl` bypasses shell functions, so the mocks must be executables on PATH
-make_fake_curl "$TEST_BIN" 'if [ "_$*" != "_$EXPECTED_CURL_ARGS" ]; then
-  echo >&2 "expected args ($EXPECTED_CURL_ARGS), got ($*)"
-  exit 1
-fi
-echo "$URL"'
-
-cat > "$TEST_BIN/wget" <<'OUTER'
-#!/bin/sh
-if [ "_$*" != "_$EXPECTED_WGET_ARGS" ]; then
-  echo >&2 "expected args ($EXPECTED_WGET_ARGS), got ($*)"
-  exit 1
-fi
-cat >&2 <<CONTENTS
+  elif [ "_$*" != "_$EXPECTED_CURL_ARGS" ]; then
+    echo >&2 "expected args ($EXPECTED_CURL_ARGS), got ($*)"
+    return 1
+  else
+    echo $URL
+  fi
+}
+wget() {
+  if [ "_$*" != "_$EXPECTED_WGET_ARGS" ]; then
+    echo >&2 "expected args ($EXPECTED_WGET_ARGS), got ($*)"
+    return 1
+  else
+    local WGET_CONTENTS
+    WGET_CONTENTS="
  HTTP/1.1 301 Moved Permanently
  Location: https://github.com/nvm-sh/nvm/releases/latest
  Content-Type: text/html; charset=utf-8
@@ -91,23 +82,16 @@ cat >&2 <<CONTENTS
  X-Content-Type-Options: nosniff
  Vary: Accept-Encoding
  X-Served-By: 926b734ea1992f8ee1f88ab967a93dac
-CONTENTS
-OUTER
-chmod +x "$TEST_BIN/wget"
-
-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 >&2 'the shadowing curl function was called'
-  return 1
-}
-wget() {
-  echo >&2 'the shadowing wget function was called'
-  return 1
+"
+    "$WGET_CONTENTS" | while read line
+    do
+      >&2 echo "$line"
+    done
+  fi
 }

+\. ../../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"
-  export PATH="$OLDPATH"
+  unset -f curl wget
 }

 \. ../../../nvm.sh

 \. ../../common.sh

-OLDPATH="$PATH"
-
-# fake curl/wget: `command curl` bypasses shell functions, so the mocks must be executables on PATH
-make_fake_curl "$TEST_BIN" 'exit 1'
-printf '#!/bin/sh\nexit 1\n' > "$TEST_BIN/wget"
-chmod +x "$TEST_BIN/wget"
-
-export PATH="$TEST_BIN:$OLDPATH"
+curl() {
+  return 1
+}
+wget() {
+  return 1
+}

 try_err nvm_get_latest
 [ "_$CAPTURED_STDERR" = "_https://latest.nvm.sh did not redirect to the latest release on GitHub" ] \