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#!/usr/bin/env bash
set -euo pipefail
REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
TMP_ERR="$(mktemp)"
trap 'rm -f "$TMP_ERR"' EXIT
# Packages whose config lives in a well-formed directory (stowable from repo root)
STOW_PKGS=(
darkman doom fastfetch foot gtk matugen mpv niri nvim rmpc starship
tmux vicinae wallust waybar xdg-desktop-portal yazi zshrc
)
# Empty portage dirs, recreated because git does not track empty directories
PORTAGE_EMPTY_DIRS=(
package.mask
postsync.d
profile/package.use.force
)
log() { printf '\033[1;32m[install]\033[0m %s\n' "$*"; }
warn() { printf '\033[1;33m[warn]\033[0m %s\n' "$*"; }
die() { printf '\033[1;31m[fatal]\033[0m %s\n' "$*" >&2; exit 1; }
run_root() {
if [[ $EUID -eq 0 ]]; then
"$@"
elif command -v sudo >/dev/null 2>&1; then
sudo "$@"
else
die "need root (use: $0 as root, or install sudo)"
fi
}
need_stow() {
if command -v stow >/dev/null 2>&1; then
log "GNU Stow found: $(stow --version 2>/dev/null | head -n1 || true)"
return
fi
warn "GNU Stow not installed — installing app-admin/stow"
run_root emerge --ask app-admin/stow
}
stow_dotfiles() {
cd "$REPO_DIR"
local ok=0 fail=0
for pkg in "${STOW_PKGS[@]}"; do
if [[ ! -d "$pkg" ]]; then
warn "package dir '$pkg' missing — skipped"
continue
fi
if stow -R -v "$pkg" >"$TMP_ERR" 2>&1; then
printf ' %s\n' "$(grep '^LINK' "$TMP_ERR" || true)"
ok=$((ok + 1))
else
warn "stow '$pkg' failed — resolve manually:"
sed 's/^/ /' "$TMP_ERR" || true
fail=$((fail + 1))
fi
done
log "stowed: $ok ok, $fail with conflicts"
}
restore_portage() {
log "copying /etc/portage config from repo"
run_root cp -a "$REPO_DIR/portage/etc/portage/." /etc/portage/
log "copying /var/lib/portage/world from repo"
run_root cp -a "$REPO_DIR/portage/var/lib/portage/world" /var/lib/portage/world
run_root find /etc/portage -type f -name .gitkeep -delete
for d in "${PORTAGE_EMPTY_DIRS[@]}"; do
run_root mkdir -p "/etc/portage/$d"
done
}
restore_system_configs() {
log "installing /etc/fstab from repo"
run_root cp -a "$REPO_DIR/fstab/etc/fstab" /etc/fstab
if [[ -f "$REPO_DIR/config.toml" ]]; then
log "installing /etc/greetd/config.toml from repo"
run_root mkdir -p /etc/greetd
run_root cp -a "$REPO_DIR/config.toml" /etc/greetd/config.toml
fi
}
check_notes() {
if [[ ! -x "$HOME/.local/bin/start-niri.sh" ]]; then
warn "~/.local/bin/start-niri.sh not found; greetd (config.toml) and PATH reference it."
warn " create it manually or place it in a stowed package before the session is usable."
fi
if grep -q '/home/seraphim' "$REPO_DIR/config.toml" 2>/dev/null; then
warn "config.toml hardcodes /home/seraphim paths — adjust for your username if different."
fi
if grep -q '/march=znver3' "$REPO_DIR/portage/etc/portage/make.conf"; then
warn "make.conf targets Zen 3 (znver3) and CPU_FLAGS_X86 — review if other hardware."
fi
}
emerge_world() {
local ans
read -r -p "Run 'emerge --sync && emerge -uDN @world' now? [y/N] " ans
if [[ "${ans,,}" =~ ^y ]]; then
run_root emerge --sync
run_root emerge -uDN @world
else
log "skip — run manually: emerge --sync && emerge -uDN @world"
fi
}
main() {
need_stow
stow_dotfiles
restore_portage
restore_system_configs
check_notes
emerge_world
log "done."
}
main "$@"
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