fix: Waybar-Wrapper gibt immer Output aus
Fallback-JSON wenn corsairctl fehlschlägt oder Cache leer ist. flock -w 5 statt -n damit der zweite Prozess wartet statt sofort aufzugeben. Atomares mv statt direktem Schreiben in Cache.
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@ -5,9 +5,10 @@
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CACHE="/tmp/corsairctl-waybar.json"
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LOCK="/tmp/corsairctl-waybar.lock"
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MAX_AGE=10
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FALLBACK='{"text":" ?","tooltip":"HS80: nicht erreichbar","class":"offline","percentage":0}'
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# Cache frisch genug?
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if [[ -f "$CACHE" ]]; then
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# Cache frisch genug? Direkt ausgeben.
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if [[ -f "$CACHE" ]] && [[ -s "$CACHE" ]]; then
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age=$(( $(date +%s) - $(stat -c %Y "$CACHE") ))
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if (( age < MAX_AGE )); then
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cat "$CACHE"
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@ -15,9 +16,14 @@ if [[ -f "$CACHE" ]]; then
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fi
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fi
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# Lock holen und aktualisieren
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# Lock holen, abfragen, cachen.
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(
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flock -n 9 || { [[ -f "$CACHE" ]] && cat "$CACHE"; exit 0; }
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corsairctl json > "$CACHE" 2>/dev/null
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cat "$CACHE"
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flock -w 5 9 || { cat "$CACHE" 2>/dev/null || echo "$FALLBACK"; exit 0; }
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if corsairctl json > "${CACHE}.tmp" 2>/dev/null; then
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mv "${CACHE}.tmp" "$CACHE"
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cat "$CACHE"
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else
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rm -f "${CACHE}.tmp"
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echo "$FALLBACK"
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fi
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) 9>"$LOCK"
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