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apf_portal/docs/setup/scripts/40-node.sh
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julien 645f81a443
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fix(setup): mirror nvm init into .zshrc so zsh sees node + pnpm (#255)
## Summary

Fix the dev-VM bootstrap so `node` and `pnpm` are on `PATH` in zsh sessions. On a fresh VM provisioned with `docs/setup/scripts/`, a freshly-cloned checkout fails to run anything (`command not found: pnpm`, and `node` too) because the nvm init never reaches the interactive shell.

## Root cause

Two setup scripts interact badly:

- `20-zsh.sh` patches `~/.bashrc` with an `exec zsh -l` hand-off on interactive shells (chsh is blocked on the corp VM, so this is how zsh becomes the effective shell), and patches `~/.zshrc` with theme/plugins/fzf only.
- `40-node.sh` runs the upstream nvm installer, which appends its init block to **`~/.bashrc`** (its default target).

Because `20-zsh.sh` runs first, the `exec zsh -l` guard sits **above** the nvm block in `~/.bashrc`. On every interactive shell, bash execs into zsh before reaching the nvm block — so it never runs — and `~/.zshrc` has no nvm init at all. Net result: zsh sessions have neither `node` nor `pnpm` on `PATH`, even though nvm + Node + corepack installed correctly.

This is a procedure bug, not a one-off: every VM built from these scripts hits it.

## Fix

`40-node.sh` now mirrors the nvm init block into `~/.zshrc` after enabling corepack — idempotent via a managed marker, same pattern `20-zsh.sh` already uses for its `~/.bashrc` patch:

```sh
# Managed by docs/setup/scripts/40-node.sh — nvm init for zsh.
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"
```

`docs/setup/01-dev-debian-vm-setup.md` — the `40-node.sh` row in the bootstrap table now notes the `~/.zshrc` patch and why it is needed.

## What lands

| File | Change |
| --- | --- |
| `docs/setup/scripts/40-node.sh` | Append an idempotent nvm-init block to `~/.zshrc` after corepack enable. |
| `docs/setup/01-dev-debian-vm-setup.md` | Document the `~/.zshrc` nvm patch in the `40-node.sh` table row. |

## Manual remediation for already-provisioned VMs

VMs built before this fix won't be retroactively patched (the scripts are idempotent and skip already-installed nvm). On those, run once:

```sh
cat >> ~/.zshrc <<'EOF'

# nvm
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"
EOF
exec zsh -l
```

(Or re-run `40-node.sh` once this lands — the marker check makes it safe; it will add the block and skip the rest.)

## Test plan

- [x] `bash -n docs/setup/scripts/40-node.sh` — syntax valid.
- [x] Manual remediation block verified on the affected VM: after appending + `exec zsh -l`, `node --version` (v24) and `pnpm --version` (10.34.1) both resolve.
- [ ] Next fresh VM bootstrap: `node` + `pnpm` resolve in the first zsh session with no manual step.
- [ ] Re-running `40-node.sh` on an already-set-up VM is a no-op on the nvm install and adds the `~/.zshrc` block exactly once (marker idempotency).

## Related

- `docs/setup/01-dev-debian-vm-setup.md` — dev-VM bootstrap procedure.
- `20-zsh.sh` — owns the `.bashrc` → zsh hand-off this fix complements.

---------

Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #255
2026-05-29 18:55:30 +02:00

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#!/usr/bin/env bash
# nvm + Node from the repo's .nvmrc + corepack + pnpm at the version pinned
# in package.json's packageManager field.
set -euo pipefail
# shellcheck source=./lib.sh
source "$(cd "$(dirname "$0")" && pwd)/lib.sh"
require_debian
require_not_root
NVM_VERSION="v0.40.1"
NVM_DIR="$HOME/.nvm"
if [[ -d "$NVM_DIR" ]]; then
skip "nvm already installed at $NVM_DIR."
else
log "Installing nvm $NVM_VERSION."
curl -fsSL "https://raw.githubusercontent.com/nvm-sh/nvm/$NVM_VERSION/install.sh" | bash
ok "nvm installed."
fi
# Source nvm so we can use it in this shell.
export NVM_DIR
# shellcheck disable=SC1091
source "$NVM_DIR/nvm.sh"
# Read .nvmrc from the repo root.
REPO_ROOT="$(git rev-parse --show-toplevel 2>/dev/null || true)"
if [[ -z "$REPO_ROOT" ]]; then
err "Run from inside a git checkout of apf_portal (no repo root found)."
exit 1
fi
if [[ ! -f "$REPO_ROOT/.nvmrc" ]]; then
warn "$REPO_ROOT/.nvmrc not found — installing Node LTS as fallback."
nvm install --lts
nvm alias default 'lts/*'
else
NODE_VER="$(<"$REPO_ROOT/.nvmrc")"
log "Installing Node $NODE_VER (from $REPO_ROOT/.nvmrc)."
nvm install "$NODE_VER"
nvm alias default "$NODE_VER"
ok "Node $(node --version) active."
fi
# corepack — provides pnpm + yarn shims, reads packageManager from package.json.
corepack enable
ok "corepack enabled."
# Warm pnpm to download the pinned version.
if [[ -f "$REPO_ROOT/package.json" ]]; then
pushd "$REPO_ROOT" >/dev/null
pnpm --version >/dev/null
ok "pnpm $(pnpm --version) ready (from package.json packageManager)."
popd >/dev/null
fi
# The nvm installer appends its init to ~/.bashrc only. But the
# interactive shell on this VM is zsh: 20-zsh.sh hands off via
# `exec zsh -l` (chsh is blocked on the corp VM). That hand-off execs
# zsh *before* the nvm block in ~/.bashrc runs, and the nvm installer
# leaves ~/.zshrc untouched — so without this, zsh sessions have
# neither node nor pnpm on PATH. Mirror the nvm init into ~/.zshrc
# (idempotent via marker, same pattern as 20-zsh.sh's .bashrc patch).
ZSHRC="$HOME/.zshrc"
[[ -f "$ZSHRC" ]] || touch "$ZSHRC"
NVM_MARKER='# Managed by docs/setup/scripts/40-node.sh — nvm init for zsh.'
if grep -qF "$NVM_MARKER" "$ZSHRC"; then
skip "nvm init already in $ZSHRC."
else
cat >> "$ZSHRC" <<'EOF'
# Managed by docs/setup/scripts/40-node.sh — nvm init for zsh.
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"
EOF
ok "Patched $ZSHRC with nvm init."
fi
log "Reload your shell (exec zsh -l) so nvm + node + pnpm are on PATH."