initial commit

run-nested.sh

@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+# Run att_wm inside a nested river, as a window in your existing session.
+#
+# Nothing is installed and no system rebuild is needed — river's wayland
+# backend opens a normal window, and att_wm manages what is inside it.
+#
+#   ./run-nested.sh              # just att_wm
+#   ./run-nested.sh --bar        # also start the bundled quickshell bar
+#   ./run-nested.sh --term       # also open a terminal to look at
+#
+# Anything else you pass is run inside the session, e.g.
+#   ./run-nested.sh --bar --term
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+if [[ -z ${WAYLAND_DISPLAY:-} ]]; then
+	echo "error: no WAYLAND_DISPLAY — this needs an existing Wayland session." >&2
+	echo "       On a TTY, use the headless backend instead:" >&2
+	echo "         WLR_BACKENDS=headless WLR_HEADLESS_OUTPUTS=1 ./run-nested.sh" >&2
+	exit 1
+fi
+
+want_bar=0
+want_term=0
+for arg in "$@"; do
+	case $arg in
+	--bar) want_bar=1 ;;
+	--term) want_term=1 ;;
+	*)
+		echo "unknown option: $arg" >&2
+		exit 1
+		;;
+	esac
+done
+
+bin=zig-out/bin
+if [[ ! -x ${bin}/att_wm ]]; then
+	echo "==> building"
+	./dev.sh bash -c 'zig build'
+fi
+bin=$(realpath "${bin}")
+
+init=$(mktemp)
+trap 'rm -f "${init}"' EXIT
+{
+	echo '#!/bin/sh'
+	# river exports the nested display to its children; surface it so you can
+	# point att_wmctl at this instance from another terminal.
+	echo 'echo "" >&2'
+	echo 'echo "  nested session is on WAYLAND_DISPLAY=$WAYLAND_DISPLAY" >&2'
+	echo 'echo "  drive it with:  WAYLAND_DISPLAY=$WAYLAND_DISPLAY '"${bin}"'/att_wmctl state" >&2'
+	echo 'echo "" >&2'
+	[[ ${want_bar} -eq 1 ]] && echo "quickshell -p $(realpath quickshell) &"
+	[[ ${want_term} -eq 1 ]] && echo 'foot &'
+	echo "exec ${bin}/att_wm"
+} >"${init}"
+chmod +x "${init}"
+
+echo "==> starting nested river (close the window to exit)"
+exec env WLR_BACKENDS=wayland river -no-xwayland -c "${init}"