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prompts/script/bootstrap
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clawbot 86c7617f86
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Install node, yarn and python from the distribution (closes #146)
Follows sneak's ruling at
#146 (comment). Runtimes
and the installer tools bundled with python come from the distribution,
with no version and no hash. Third-party packages stay pinned by hash.

script/bootstrap drops nvm and corepack. It installs node, yarn and the
node packages only when yarn.lock is in the tree, and stops there when
yarn's major version is not 1. This repository's Dockerfile starts from
Alpine 3.24. The Python example starts from debian:trixie-slim, keeps
pipenv at $HOME/.pipenv on a host and in an image, and sets
PIP_ONLY_BINARY=:all:, so pip downloads no build tools without a hash
check.

Model: opus-5-5
2026-11-04 09:55:26 +01:00

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#!/bin/sh
# script/bootstrap: install all dependencies needed to build and develop
# this repo. Idempotent: every install is guarded by a check so already
# installed tools are skipped. Base tools, node and yarn come from nix,
# apt, brew, or apk (detected in that order), with no version and no
# hash, because the distribution is trusted. It installs node, yarn and
# the node packages only when yarn.lock is in the tree. Assumes nothing
# is present.
set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
PKGMGR=""
SUDO=""
APT_UPDATED=""
detect_pkgmgr() {
[ -n "$PKGMGR" ] && return 0
if command -v nix-env >/dev/null 2>&1; then
PKGMGR="nix"
elif command -v apt-get >/dev/null 2>&1; then
PKGMGR="apt"
elif command -v brew >/dev/null 2>&1; then
PKGMGR="brew"
elif command -v apk >/dev/null 2>&1; then
PKGMGR="apk"
else
echo "bootstrap: no supported package manager (nix, apt, brew, apk)" >&2
exit 1
fi
if [ "$PKGMGR" = "apt" ]; then
export DEBIAN_FRONTEND=noninteractive
if [ "$(id -u)" != "0" ]; then
SUDO="sudo"
fi
fi
}
# pkg_install <nix-attr> <apt-pkg> <brew-formula> <apk-pkg>
pkg_install() {
detect_pkgmgr
case "$PKGMGR" in
nix) nix-env -iA "nixpkgs.$1" ;;
apt)
# Package lists may be empty (fresh images); refresh once per run.
if [ -z "$APT_UPDATED" ]; then
$SUDO env DEBIAN_FRONTEND=noninteractive apt-get update
APT_UPDATED=1
fi
$SUDO env DEBIAN_FRONTEND=noninteractive apt-get install -y "$2"
;;
brew) brew install "$3" ;;
apk) apk add --no-cache "$4" ;;
esac
}
missing() {
! command -v "$1" >/dev/null 2>&1
}
# Debian and Ubuntu name the yarn command yarnpkg.
run_yarn() {
if command -v yarn >/dev/null 2>&1; then
yarn "$@"
elif command -v yarnpkg >/dev/null 2>&1; then
yarnpkg "$@"
else
echo "no yarn; run script/bootstrap first" >&2
exit 1
fi
}
main() {
cd "$ROOT"
if missing make; then pkg_install gnumake make make make; fi
if missing git; then pkg_install git git git git; fi
# A Dockerfile stage that needs no yarn copies no yarn.lock.
if [ -f yarn.lock ]; then
if missing node; then pkg_install nodejs nodejs node nodejs; fi
if missing yarn && missing yarnpkg; then
pkg_install yarn yarnpkg yarn yarn
fi
# Debian 13 and Ubuntu 26.04 package yarn 4, which refuses a yarn 1
# yarn.lock, or rewrites it in its own format.
yarn_version="$(run_yarn --version)"
if [ "${yarn_version%%.*}" != "1" ]; then
echo "bootstrap: yarn $yarn_version refuses this yarn 1 yarn.lock;" \
"use a distribution that packages yarn 1" >&2
exit 1
fi
run_yarn install --frozen-lockfile
fi
echo "bootstrap complete"
}
main "$@"