dotfiles/.config/hypr/scripts/Tak0-Autodispatch.sh
2026-05-13 21:22:17 +02:00

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#!/usr/bin/env bash
# ==================================================
# KoolDots (2026)
# Project URL: https://github.com/LinuxBeginnings
# License: GNU GPLv3
# SPDX-License-Identifier: GPL-3.0-or-later
# ==================================================
# ─────────────────────────────────────────────────────────────────────────────
# Tak0-Autodispatch.sh
# ─────────────────────────────────────────────────────────────────────────────
# This script is an "authoritative spawn dispatcher" for Hyprland.
#
# Its purpose is to FORCE all windows belonging to a single application launch
# (main window + helpers + Electron / Steam child processes)
# onto a specific workspace.
#
# It explicitly ignores:
# • spawn race conditions
# • delayed window creation
# • detached helper processes
# • Electron / Chromium / Steam madness
#
# Typical use cases:
# • Launch Steam / Discord / browsers without window leakage
# • Prevent apps from spawning on the currently focused workspace
# • Control applications that completely ignore static windowrules
#
# Invocation:
# ./Tak0-Autodispatch.sh <workspace> [rule ...] -- <command>
#
# Important notes:
# • All window rules are TEMPORARY
# • No permanent pollution of Hyprland configuration
# ─────────────────────────────────────────────────────────────────────────────
# REQUIREMENTS:
# - hyprctl → runtime control of Hyprland
# - jq → JSON client parsing
# - pgrep/ps → process tree inspection
set -u
LOGFILE="$(dirname "$0")/dispatch.log"
# ─────────────────────────────────────────────────────────────────────────────
# 0⃣ ARGUMENT PARSING
# ─────────────────────────────────────────────────────────────────────────────
# $1 → target workspace
# Next args → optional capture rules (windowrulev2 syntax)
# "--" → argument separator
# After "--" → command to execute (verbatim)
TARGET_WS="$1"
shift || true
CAPTURE_RULES=()
while [[ "${1-}" != "--" && -n "${1-}" ]]; do
CAPTURE_RULES+=("$1")
shift || break
done
if [[ "${1-}" == "--" ]]; then
shift
fi
CMD="$*"
if [[ -z "$TARGET_WS" || -z "$CMD" ]]; then
echo "Usage: $0 <workspace> [rule rule ...] -- <command>" >>"$LOGFILE"
exit 1
fi
echo "=== Deploy '$CMD' → WS $TARGET_WS @ $(date) ===" >>"$LOGFILE"
# ─────────────────────────────────────────────────────────────────────────────
# 1⃣ HYPRLAND READINESS GATE
# ─────────────────────────────────────────────────────────────────────────────
# Hyprland may not be fully initialized during early autostart.
# hyprctl silently fails if called too early.
for _ in {1..50}; do
hyprctl -j monitors >/dev/null 2>&1 && break
sleep 0.1
done
# ─────────────────────────────────────────────────────────────────────────────
# 2⃣ CLEANUP GUARANTEE
# ─────────────────────────────────────────────────────────────────────────────
# Ensures that ALL temporary rules are removed
# even on crash, SIGTERM, or user interruption.
cleanup() {
echo "Cleanup: removing temporary capture rules and initialWorkspace at $(date)" >>"$LOGFILE"
hyprctl keyword windowrulev2 "unset, initialClass:.*" >>"$LOGFILE" 2>&1 || true
for RULE in "${CAPTURE_RULES[@]}"; do
echo "Cleanup: removing temporary capture rule: $RULE" >>"$LOGFILE"
hyprctl keyword windowrulev2 "unset, $RULE" >>"$LOGFILE" 2>&1 || true
done
}
trap cleanup EXIT INT TERM ERR
# ─────────────────────────────────────────────────────────────────────────────
# 3⃣ ULTRA-EARLY GLOBAL CAPTURE (NUCLEAR OPTION)
# ─────────────────────────────────────────────────────────────────────────────
# Temporarily forces ALL windows (initialClass:.*)
# onto the target workspace.
#
# Protects against ultra-fast helpers:
# • gpu-process
# • renderer
# • steamwebhelper
echo "Applying temporary initialWorkspace capture (initialClass:.*)" >>"$LOGFILE"
hyprctl keyword windowrulev2 \
"initialWorkspace $TARGET_WS silent, initialClass:.*" \
>>"$LOGFILE" 2>&1 || true
# ─────────────────────────────────────────────────────────────────────────────
# 3⃣.1 OPTIONAL CLASS-BASED PRE-CAPTURE
# ─────────────────────────────────────────────────────────────────────────────
# Additional precision rules.
# Useful for Electron / Steam multi-process hell.
for RULE in "${CAPTURE_RULES[@]}"; do
echo "Applying temporary capture rule: $RULE" >>"$LOGFILE"
hyprctl keyword windowrulev2 \
"initialWorkspace $TARGET_WS silent, $RULE" \
>>"$LOGFILE" 2>&1 || true
done
# ─────────────────────────────────────────────────────────────────────────────
# 4⃣ APPLICATION LAUNCH
# ─────────────────────────────────────────────────────────────────────────────
# bash -c allows aliases, env vars, wrappers.
# ROOT_PID is the root of process lineage.
bash -c "$CMD" &
ROOT_PID=$!
echo "Root PID: $ROOT_PID" >>"$LOGFILE"
# Resolve canonical process name
APP_NAME=""
for _ in {1..20}; do
if [[ -r "/proc/$ROOT_PID/comm" ]]; then
APP_NAME="$(tr -d '\0' </proc/$ROOT_PID/comm 2>/dev/null || true)"
break
fi
sleep 0.05
done
if [[ -z "$APP_NAME" ]]; then
read -r -a __toks <<<"$CMD"
APP_NAME="$(basename "${__toks[0]}")"
fi
echo "App gate name: $APP_NAME" >>"$LOGFILE"
sleep 1.5
#!TO-DO: Release the nuclear option ASAP
echo "Releasing ultra-early wide capture" >>"$LOGFILE"
hyprctl keyword windowrulev2 "unset, initialClass:.*" >>"$LOGFILE" 2>&1 || true
# ─────────────────────────────────────────────────────────────────────────────
# 5⃣ SUPERVISION LOOP (AUTHORITATIVE PHASE)
# ─────────────────────────────────────────────────────────────────────────────
# This loop:
# • scans ALL Hyprland clients
# • matches PID lineage
# • matches detached helpers
# • matches class rules
get_descendants() {
local root="$1"
local all=("$root")
local changed=1
while ((changed)); do
changed=0
for p in "${all[@]}"; do
for c in $(pgrep -P "$p" 2>/dev/null || true); do
if [[ ! " ${all[*]} " =~ " $c " ]]; then
all+=("$c")
changed=1
fi
done
done
done
echo "${all[@]}"
}
pid_matches_app() {
local pid="$1"
local comm
comm="$(ps -p "$pid" -o comm= 2>/dev/null)" || return 1
[[ "$comm" == "$APP_NAME" || "$comm" == "$APP_NAME"* ]]
}
END_TIME=$((SECONDS + 20))
declare -A SEEN
while ((SECONDS < END_TIME)); do
PIDS="$(get_descendants "$ROOT_PID")"
while IFS=$'\t' read -r PID ADDR CLASS; do
MATCH=0
for TPID in $PIDS; do
[[ "$PID" == "$TPID" ]] && MATCH=1 && break
done
pid_matches_app "$PID" && MATCH=1
for RULE in "${CAPTURE_RULES[@]}"; do
if [[ "$RULE" =~ class:\^\((.*)\)\$ ]]; then
[[ "$CLASS" =~ ${BASH_REMATCH[1]} ]] && MATCH=1
fi
done
if ((MATCH)) && [[ -z "${SEEN[$ADDR]-}" ]]; then
echo "Placing window $ADDR (pid $PID, class $CLASS) → WS $TARGET_WS" >>"$LOGFILE"
hyprctl dispatch movetoworkspacesilent \
"$TARGET_WS,address:$ADDR" >>"$LOGFILE" 2>&1 || true
SEEN[$ADDR]=1
fi
done < <(hyprctl clients -j | jq -r '.[] | [.pid, .address, .class] | @tsv')
sleep 0.01
done
echo "=== Deploy finished: '$CMD' ===" >>"$LOGFILE"
exit 0