306 lines
14 KiB
Bash
Executable File
306 lines
14 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Deploy the unified dots for this machine using GNU Stow.
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#
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# ./install.sh [host] host: the arg, else ~/.config/dots-host, else $(hostname -s);
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# the resolved host is recorded in ~/.config/dots-host
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# ./install.sh -n [host] dry-run (preview, no changes)
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# ./install.sh -a [host] first run on a machine that still has real config files:
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# --adopt them into the repo, then review `git diff` and
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# `git restore .` to keep the repo (merged) versions.
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# ./install.sh -D [host] revert: unstow this host's symlinks (repo + real files untouched)
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# ./install.sh -h show all options
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#
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# Layering (later wins): common -> gui -> <host>
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# - common : shared everywhere
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# - gui : GUI configs (skipped on headless machines — see the marker below)
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# - <host> : per-machine overrides (top-level package), stowed last with --override
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# All packages live at the repo root so they share one stow dir — required for
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# --override to let a host file take over a common/gui file of the same path.
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# --no-folding: every file is symlinked individually (dirs stay real) so a host can
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# override a single file in a shared dir without shadowing the rest.
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#
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# Idempotent: re-run any time. Adding/removing files in the repo needs a re-run
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# (editing an existing file does not — symlinks point straight at the repo file).
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set -uo pipefail
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# --- headless (terminal-only, no GUI) machines skip the gui package ---
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# A machine is "headless" if this marker file exists. It's machine-local (not tracked by the repo)
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# and hostname-independent, so the same terminal-only setup replicates across any number of machines
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# — run once on each tty-only box: touch ~/.config/dots-headless
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HEADLESS_MARKER="${XDG_CONFIG_HOME:-$HOME/.config}/dots-headless"
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# --- which host package this machine deploys ---
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# Machine-local like the marker above, and deliberately NOT derived from `hostname -s`: several
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# boxes may deploy the same overlay without sharing a hostname, and a hostname that happens not
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# to match a package name would otherwise half-deploy (base layers restow, the overlay is
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# skipped). Resolution order:
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# the explicit arg -> this file -> `hostname -s` (a guess, not an invariant)
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# The resolved host is recorded here, so later bare runs — and `bin/dotsync`, which re-links
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# without being able to pass an argument — reuse it. Hand-editable: one word, e.g. `wm`.
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HOST_MARKER="${XDG_CONFIG_HOME:-$HOME/.config}/dots-host"
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usage() {
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cat <<'EOF'
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Deploy this machine's dotfiles with GNU Stow.
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Usage: ./install.sh [options] [host]
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host host package to deploy. Resolved as: this arg, else the name in
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~/.config/dots-host, else `hostname -s`. The resolved host is
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remembered in ~/.config/dots-host, so later runs (and dotsync,
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which cannot pass one) reuse it — the hostname need not match.
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-n, --dry-run preview stow actions; change nothing
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-a, --adopt first run on a machine with existing real config files: adopt
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them into the repo, then review `git diff` and `git restore .`
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-D, --unstow revert: remove this host's stow symlinks (repo + real files kept)
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-h, --help show this help and exit
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Layering (later wins): common -> gui -> <host>. A machine with ~/.config/dots-headless
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skips gui (and has any stray gui unstowed). Run from inside the repo (~/.dots).
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EOF
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}
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# --- args ---
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DRY=""
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ADOPT=""
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UNSTOW=0
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ARGS=()
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for a in "$@"; do
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case "$a" in
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-n | --dry-run) DRY="-n" ;;
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-a | --adopt) ADOPT="--adopt" ;;
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-D | --unstow | --delete) UNSTOW=1 ;;
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-h | --help)
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usage
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exit 0
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;;
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-*)
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echo "unknown option: $a" >&2
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usage >&2
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exit 2
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;;
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*) ARGS+=("$a") ;;
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esac
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done
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# resolve the host package (see HOST_MARKER above). RECORDED is read BEFORE the marker is
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# rewritten below, so a profile switch still knows which overlay to release first.
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RECORDED=""
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[ -r "$HOST_MARKER" ] && RECORDED="$(head -1 "$HOST_MARKER" | tr -d '[:space:]')"
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HOST="${ARGS[0]:-${RECORDED:-$(hostname -s)}}"
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# an empty HOST must never reach stow: `stow -S ""` treats the repo ROOT as the package
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# and links common/, gui/, install.sh… straight into $HOME (and `-D ""` unlinks likewise)
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[ -n "$HOST" ] || {
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echo "error: no host resolved — pass one (./install.sh <host>) or write it to ~/.config/dots-host" >&2
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exit 1
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}
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DOTS="$(cd "$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")" && pwd)"
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command -v stow >/dev/null 2>&1 || {
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echo "error: GNU stow is not installed (pacman -S stow)" >&2
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exit 1
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}
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# --adopt copies LIVE files over the repo working tree; uncommitted edits there would be
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# silently overwritten (and the post-adopt `git restore .` advice would discard whatever
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# survived). Refuse until the tree is clean, so nothing is lost without a git safety net.
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if [ -n "$ADOPT" ] && [ -z "$DRY" ] && [ -n "$(git -C "$DOTS" status --porcelain 2>/dev/null)" ]; then
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echo "error: -a/--adopt rewrites repo files with this machine's live copies, and the repo has" >&2
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echo " uncommitted changes that would be lost — commit or stash them first." >&2
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exit 1
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fi
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gui=true
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[ -e "$HEADLESS_MARKER" ] && gui=false
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echo "host=$HOST dots=$DOTS gui=$gui${DRY:+ (dry-run)}"
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# --- revert mode: unstow this host's packages (reverse of deploy), leave repo + real files intact ---
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if [ "$UNSTOW" -eq 1 ]; then
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verb="unstowed"
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[ -n "$DRY" ] && verb="would unstow"
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for p in "$HOST" gui common; do
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[ -d "$DOTS/$p" ] || continue
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if stow $DRY -d "$DOTS" -t "$HOME" -D "$p" 2>/dev/null; then
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echo " $verb $p"
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fi
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# prune the now-empty dirs this package created under ~/.config (empty only — never real files)
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if [ -z "$DRY" ] && [ -d "$DOTS/$p/.config" ]; then
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for d in "$DOTS/$p"/.config/*/; do
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t="$HOME/.config/$(basename "$d")"
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[ -d "$t" ] && find "$t" -type d -empty -delete 2>/dev/null || true
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done
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fi
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done
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if [ -n "$DRY" ]; then
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echo "(dry-run) nothing changed."
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else
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echo "reverted — removed this host's stow symlinks. ~/.dots and any real files are untouched."
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echo "note: ~/.claude/* links (from link.sh) are separate; remove by hand if you want those gone too."
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fi
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exit 0
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fi
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# remember the resolved host, so bare re-runs — and dotsync, which re-links without being able to
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# pass an argument — deploy the same overlay on this machine whatever its hostname is. Only ever
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# records a name that IS a package (never a typo, never a hostname with no overlay behind it), and
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# records the *choice*, not the outcome: a run whose stow later fails is still remembered.
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if [ -z "$DRY" ] && [ "$HOST" != "$RECORDED" ] && [ -d "$DOTS/$HOST" ]; then
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printf '%s\n' "$HOST" >"$HOST_MARKER" && echo " recorded host '$HOST' in ${HOST_MARKER/#$HOME/~}"
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fi
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# 0. self-heal symlinks that stow would reject ("not owned by stow"), which otherwise aborts all of
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# common. Three stale-link classes a prior link.sh/heal/migration can leave behind:
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# - hooks/skills folded into an ABSOLUTE dir-symlink (they must be real dirs) — drop it entirely.
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# - a file item re-linked with an ABSOLUTE target instead of stow's relative one — drop it.
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# - a DANGLING link whose target is gone (e.g. a relative link into the deleted ~/.dotfiles) —
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# stow rejects it just the same, so drop it too.
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# Only ever removes a *symlink* here (never a real file/dir), so nothing is lost; stow then
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# recreates the correct relative link. A drifted *real* file is left for link.sh's drift guard
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# (or `-a` to adopt) to reconcile, since it may hold un-synced edits.
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if [ -z "$DRY" ]; then
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for d in hooks skills; do
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t="$HOME/.config/claude/$d"
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[ -L "$t" ] && {
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rm -f "$t"
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echo " cleared stale folded symlink ~/.config/claude/$d"
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}
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done
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for f in settings.json statusline.py keybindings.json CLAUDE.md; do
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t="$HOME/.config/claude/$f"
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if [ -L "$t" ] && [ ! -e "$t" ]; then
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rm -f "$t"
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echo " cleared dangling symlink ~/.config/claude/$f (stow will relink)"
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continue
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fi
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case "$(readlink "$t" 2>/dev/null)" in
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/*)
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rm -f "$t"
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echo " cleared absolute symlink ~/.config/claude/$f (stow will relink)"
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;;
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esac
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done
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fi
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# --- keep a live Hyprland session quiet while symlinks are removed/recreated ---
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# Step 1 releases the host overlay before restowing, and Hyprland's config watcher reloads
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# the moment a sourced file vanishes (monitors.conf/host.conf, hyprland.conf:58/60 — the two
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# that come from the overlay): that parse aborts and the session sits on a partial config
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# until a manual Super+Shift+R. So pause the watcher and reload once at the end, when every
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# link is back. The final reload also re-reads misc:disable_autoreload from the config,
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# undoing the runtime keyword — no state is left behind.
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if [ -z "$DRY" ] && [ -n "${HYPRLAND_INSTANCE_SIGNATURE:-}" ] && command -v hyprctl >/dev/null 2>&1; then
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hyprctl keyword misc:disable_autoreload true >/dev/null 2>&1
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trap 'hyprctl reload >/dev/null 2>&1' EXIT
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fi
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# 1. release the host overlay first so base restows never conflict on overridden files.
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# The PREVIOUSLY recorded host is released too, so switching a machine to another overlay
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# works: its leftover links are "stowed to a different package" as far as the step-2 restows
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# are concerned, which would abort those whole packages. Releasing an already-released
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# package is a harmless no-op, so the repeat when nothing changed costs nothing.
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if [ -z "$DRY" ]; then
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for p in "$HOST" "$RECORDED"; do
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[ -n "$p" ] && [ -d "$DOTS/$p" ] && stow -d "$DOTS" -t "$HOME" -D "$p" 2>/dev/null
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done
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true # a release that found nothing to do must not fail the run
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fi
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# stow one package; track failures instead of silently continuing and reporting success
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FAIL=0
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stow_pkg() { # stow_pkg <label> <stow args...>
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local label="$1"
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shift
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if stow $DRY $ADOPT --no-folding -d "$DOTS" -t "$HOME" "$@"; then
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echo " stowed $label"
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else
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FAIL=1
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fi
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}
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# 2. (re)stow base layers
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# In dry-run the host overlay is NOT released first (step 1 is real-run-only), so simulating
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# a base restow would report conflicts on host-overridden files that a real run never hits.
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# --override in the simulation makes its outcome (exit status) match the real sequence.
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DRYOVR=""
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[ -n "$DRY" ] && DRYOVR="--override=.*"
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stow_pkg common $DRYOVR -R common
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if [ "$gui" = true ]; then
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stow_pkg gui $DRYOVR -R gui
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else
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# headless: ensure no stray gui is left deployed (self-heals a prior wrong run)
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if stow $DRY -d "$DOTS" -t "$HOME" -D gui 2>/dev/null; then
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test -z "$DRY" && echo " ensured gui not deployed (headless)"
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fi
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# prune the now-empty dirs that unstowing gui leaves behind (only removes empty ones)
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if [ -z "$DRY" ] && [ -d "$DOTS/gui/.config" ]; then
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for d in "$DOTS"/gui/.config/*/; do
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t="$HOME/.config/$(basename "$d")"
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[ -d "$t" ] && find "$t" -type d -empty -delete 2>/dev/null || true
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done
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fi
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fi
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# 3. stow the host overlay last, overriding base files
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if [ -d "$DOTS/$HOST" ]; then
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stow_pkg "$HOST" --override='.*' -S "$HOST"
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else
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echo " no '$HOST' overlay — using common only (add a top-level '$HOST/' package for host overrides)"
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if [ "$HOST" != "${ARGS[0]:-}" ] && [ "$HOST" != "$RECORDED" ]; then
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echo " ('$HOST' is only this machine's hostname — if it should deploy a named host package," >&2
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echo " run ./install.sh <name> once; that choice is remembered and hostname stops mattering)" >&2
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fi
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fi
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# 3.5 seed waybar's theme.css where no generator has ever written one. layouts/custom.css
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# does `@import "../theme.css"` and a missing import target kills waybar outright (bar dead
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# at login, Ctrl+Alt+W looks kill-only). On themed hosts HyDE/wallbash owns the real file —
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# [ ! -e ] never touches those; it fires only when the file is absent or the pre-2026-08-14
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# stow link dangles (-e follows symlinks), covering fresh machines and never-themed ones.
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if [ "$gui" = true ]; then
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wbtheme="$HOME/.config/waybar/theme.css"
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if [ ! -e "$wbtheme" ]; then
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if [ -n "$DRY" ]; then
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echo " would seed waybar theme.css from gui/.config/waybar/theme-fallback.css"
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else
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mkdir -p "${wbtheme%/*}"
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cp --remove-destination "$DOTS/gui/.config/waybar/theme-fallback.css" "$wbtheme" \
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&& echo " seeded waybar theme.css from fallback (wallbash overwrites it when HyDE themes run)"
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fi
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fi
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fi
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# 4. surface Claude config into ~/.claude. Deliberately NOT gated on stow success: link.sh's
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# drift heal is what clears the usual stow failure (a ~/.config/claude file severed by one
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# of Claude's atomic rewrites), so running it only after a clean stow made that failure
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# permanent. Its exit matters too — swallowing it reported "linked" over a refused heal.
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if [ -z "$DRY" ] && [ -f "$HOME/.config/claude/link.sh" ]; then
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if bash "$HOME/.config/claude/link.sh"; then
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echo " linked ~/.claude"
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else
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FAIL=1
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echo " link.sh failed (see above) — ~/.claude not fully linked" >&2
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fi
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fi
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# fail loudly with a non-zero exit so callers / re-runs can tell it did not apply
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if [ "$FAIL" -ne 0 ]; then
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echo "FAILED: some packages could not be stowed (conflicts above)." >&2
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echo " first run on a machine with existing real files? re-run with -a to adopt them" >&2
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echo " (-a rewrites the repo working tree with the live copies — it refuses to run while" >&2
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echo " the repo has uncommitted edits, so commit/stash first)." >&2
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exit 1
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fi
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echo "done."
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if [ -n "$ADOPT" ] && [ -z "$DRY" ]; then
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echo
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echo "adopted this machine's existing files INTO the repo working tree — heads up: they can appear"
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echo "under common/ or gui/ even when they are really host-specific. Review, then normally discard:"
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echo " git -C \"$DOTS\" diff # inspect the adopted drift"
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echo " git -C \"$DOTS\" restore . # discard it, keep the merged repo versions (recommended)"
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echo "To KEEP a change, hand-copy it into the right package (common/gui/$HOST) — do not blanket-commit"
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echo "the adopted diff, or host-specific content leaks into shared packages. (restore . drops ALL"
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echo "uncommitted edits — fine on a fresh clone.)"
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fi
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