28allday
154bcc85d4
Walker's env can carry a stale HIS across Hyprland restarts — the variable points at a signature whose socket dir no longer exists, so hyprctl dumps a plain-text "not running" error to stdout and the TUI silently bails. Validate HIS against `$XDG_RUNTIME_DIR/hypr/$HIS/` and fall through to the `hyprctl instances` recovery path when the directory is missing, not only when HIS is unset. Same detection added to the watcher.
88 lines
3 KiB
Bash
88 lines
3 KiB
Bash
#!/usr/bin/env bash
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# ==============================================================================
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# Motion Wallpaper — auto-pause watcher.
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#
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# Subscribes to Hyprland's event socket (socket2) and toggles mpv pause/resume
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# via the IPC socket that mpvpaper was started with. Replaces mpvpaper's own
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# --auto-pause / -p flag, which is unreliable on recent Hyprland releases.
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#
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# This script runs as a background sibling to mpvpaper. The main toggle script
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# starts it and kills it.
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# ==============================================================================
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set -euo pipefail
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RUNTIME_DIR="${XDG_RUNTIME_DIR:-/run/user/$(id -u)}"
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MPV_IPC="$RUNTIME_DIR/motion-wallpaper-mpv.sock"
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LOG_FILE="${XDG_CACHE_HOME:-$HOME/.cache}/motion-wallpaper.log"
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log() {
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printf '[%s] watcher: %s\n' "$(date '+%Y-%m-%d %H:%M:%S')" "$*" >> "$LOG_FILE"
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}
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his="${HYPRLAND_INSTANCE_SIGNATURE:-}"
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if [ -z "$his" ] || [ ! -d "$RUNTIME_DIR/hypr/$his" ]; then
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# HIS is missing or stale (points to a dead session). Recover from the
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# live signature reported by `hyprctl instances`.
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sig="$(hyprctl instances 2>/dev/null | awk '/^instance /{sub(/:$/,"",$2); print $2; exit}')"
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if [ -n "$sig" ]; then
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export HYPRLAND_INSTANCE_SIGNATURE="$sig"
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log "using HYPRLAND_INSTANCE_SIGNATURE=$sig (was: ${his:-unset})"
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else
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log "HYPRLAND_INSTANCE_SIGNATURE not usable and no live instance found — exiting"
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exit 0
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fi
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fi
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HYPR_SOCK="$RUNTIME_DIR/hypr/$HYPRLAND_INSTANCE_SIGNATURE/.socket2.sock"
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if [ ! -S "$HYPR_SOCK" ]; then
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log "hyprland event socket not found ($HYPR_SOCK) — exiting"
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exit 0
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fi
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if ! command -v socat >/dev/null 2>&1; then
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log "socat not installed — exiting"
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exit 0
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fi
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send_mpv() {
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# Best-effort — silently no-op if mpv's IPC socket isn't up yet.
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[ -S "$MPV_IPC" ] || return 0
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printf '%s\n' "$1" | socat - "UNIX-CONNECT:$MPV_IPC" >/dev/null 2>&1 || true
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}
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pause_mpv() { send_mpv '{ "command": ["set_property", "pause", true] }'; }
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resume_mpv() { send_mpv '{ "command": ["set_property", "pause", false] }'; }
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log "watching $HYPR_SOCK"
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# Kill socat child on exit so it doesn't spam "Broken pipe" to the log when
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# the watcher is killed by the main toggle script.
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cleanup() {
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# `[ ] && kill` short-circuits to non-zero when SOCAT_PID is unset, which
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# under `set -e` would abort the trap before `exit 0` — wrap safely.
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if [ -n "${SOCAT_PID:-}" ]; then
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kill "$SOCAT_PID" 2>/dev/null || true
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fi
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exit 0
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}
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trap cleanup EXIT INT TERM
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# Hyprland socket2 emits newline-separated "EVENT>>DATA" lines. We only care
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# about the fullscreen state. `fullscreen>>1` = entered, `fullscreen>>0` = left.
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# socat stderr is dropped so EPIPE on shutdown doesn't bloat the log.
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coproc SOCAT { socat -u "UNIX-CONNECT:$HYPR_SOCK" - 2>/dev/null; }
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# Bash auto-exports SOCAT_PID from `coproc SOCAT`; used in cleanup trap.
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while IFS= read -r line <&"${SOCAT[0]}"; do
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case "$line" in
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fullscreen\>\>1)
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log "fullscreen entered — pause"
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pause_mpv
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;;
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fullscreen\>\>0)
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log "fullscreen left — resume"
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resume_mpv
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;;
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esac
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done
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