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#!/bin/sh
# bootstrap.sh — take a fresh minimal Arch install (only the 'base'
# meta-package installed) to the point where `just init` has run, the
# dotfiles are deployed, and recommended services are enabled.
#
# Prerequisites (from the Arch installation guide):
# - A regular user already exists and is a member of the 'wheel' group.
# - You are logged in as that user (paru/makepkg refuse to run as root).
#
# Usage:
# curl -fsSL https://raw.githubusercontent.com/sommerfelddev/dotfiles/master/bootstrap.sh | sh
#
# Overrides:
# DOTFILES_REPO (default: https://github.com/sommerfelddev/dotfiles.git)
# DOTFILES_DIR (default: $HOME/dotfiles)
set -eu
log() { printf '\033[1;34m==>\033[0m %s\n' "$*"; }
warn() { printf '\033[1;33m==>\033[0m %s\n' "$*" >&2; }
die() {
printf '\033[1;31m==>\033[0m %s\n' "$*" >&2
exit 1
}
# 0. refuse root — paru/makepkg won't run as root
[ "$(id -u)" -ne 0 ] || die "run this as your regular user, not root"
# 1. user must be in wheel (required so the sudoers rule we enable takes effect)
id -nG "$USER" | tr ' ' '\n' | grep -qx wheel ||
die "user '$USER' must be in the 'wheel' group"
# 2. install sudo + pacman prerequisites, enable wheel in sudoers.
# If sudo is absent we do this in a single su -c so the root password
# is entered only once. If sudo is already there, reuse it.
PREREQS='sudo git base-devel chezmoi just efibootmgr'
SUDOERS_SED='s/^# *\(%wheel ALL=(ALL:ALL\(:ALL\)*) ALL\)/\1/'
if ! command -v sudo >/dev/null 2>&1; then
log 'installing prerequisites (prompting for root password)'
su -c "pacman -Syu --needed --noconfirm ${PREREQS} && \
sed -i '${SUDOERS_SED}' /etc/sudoers"
else
log 'installing prerequisites'
# shellcheck disable=SC2086 # PREREQS is an intentional word list
sudo pacman -Syu --needed --noconfirm ${PREREQS}
sudo sed -i "${SUDOERS_SED}" /etc/sudoers
fi
# 3. bootstrap paru-bin from AUR if missing
if ! command -v paru >/dev/null 2>&1; then
log 'building paru-bin from AUR'
tmp=$(mktemp -d)
trap 'rm -rf "$tmp"' EXIT
git clone --depth=1 https://aur.archlinux.org/paru-bin.git "$tmp/paru-bin"
(cd "$tmp/paru-bin" && makepkg -si --noconfirm)
fi
# 4. clone dotfiles
DOTFILES_DIR="${DOTFILES_DIR:-$HOME/dotfiles}"
REPO_URL="${DOTFILES_REPO:-https://github.com/sommerfelddev/dotfiles.git}"
if [ ! -d "$DOTFILES_DIR/.git" ]; then
log "cloning $REPO_URL -> $DOTFILES_DIR"
git clone "$REPO_URL" "$DOTFILES_DIR"
else
log "using existing clone at $DOTFILES_DIR"
fi
# 5. run just init — this deploys chezmoi, installs the 'base' meta list
# (swapping sudo for doas-sudo-shim via paru -S --ask=4), deploys
# /etc/doas.conf, and installs git hooks.
cd "$DOTFILES_DIR"
log 'running just init'
just init
# 6. refresh pacman mirrorlist once via reflector (config deployed by chezmoi)
log 'refreshing pacman mirrorlist via reflector'
sudo reflector @/etc/xdg/reflector/reflector.conf \
--save /etc/pacman.d/mirrorlist ||
warn 'reflector failed; keeping existing mirrorlist'
# 7. create XDG user directories (~/Documents, ~/Downloads, etc.)
if command -v xdg-user-dirs-update >/dev/null 2>&1; then
log 'creating XDG user directories'
xdg-user-dirs-update || warn 'xdg-user-dirs-update failed'
fi
# 8. optional: create an Arch EFI boot entry if none exists
if [ -d /sys/firmware/efi ]; then
if ! sudo efibootmgr 2>/dev/null | grep -iq arch; then
warn 'no Arch Linux EFI boot entry found'
warn 'after first kernel install, run: sudo mkinitcpio -P'
warn 'then register the UKI with efibootmgr, for example:'
warn " sudo efibootmgr --create --disk /dev/nvme0n1 --part 1 \\"
warn " --label 'Arch UKI' --loader '\\EFI\\Linux\\arch-linux.efi'"
fi
fi
log 'done. Log out and back in (or reboot) to pick up shell and group changes.'
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