giles
e67852ca96
- scripts/loop-guard.sh — atomic claim with 30-min staleness overtake, appends NDJSON event to .loop-logs/<lang>.ndjson. Exit 0 = go ahead, exit 1 = another run is live, skip. - scripts/loop-release.sh — clear lock, log release with exit status. Intended for 7 per-language /schedule routines firing every 15 minutes. Lock detects overlap so tight cadences are safe; stale lock (>30 min) overtaken automatically if an agent dies mid-run.
28 lines
802 B
Bash
Executable File
28 lines
802 B
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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LANG=${1:?usage: loop-guard.sh <lang>}
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ROOT=$(cd "$(dirname "$0")/.." && pwd)
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cd "$ROOT"
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mkdir -p .loop-locks .loop-logs
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LOCK=".loop-locks/$LANG.claim"
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LOG=".loop-logs/$LANG.ndjson"
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NOW=$(date +%s)
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ISO=$(date -Iseconds)
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STALE_SEC=${LOOP_STALE_SEC:-1800}
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if [ -f "$LOCK" ]; then
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LAST=$(cat "$LOCK" 2>/dev/null || echo 0)
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AGE=$((NOW - LAST))
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if [ "$AGE" -lt "$STALE_SEC" ]; then
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printf '{"ts":"%s","lang":"%s","status":"skip","age":%d}\n' "$ISO" "$LANG" "$AGE" >> "$LOG"
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echo "SKIP: $LANG claimed ${AGE}s ago (stale threshold ${STALE_SEC}s)"
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exit 1
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fi
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echo "INFO: $LANG lock was ${AGE}s old, overtaking"
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fi
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echo "$NOW" > "$LOCK"
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printf '{"ts":"%s","lang":"%s","status":"claimed"}\n' "$ISO" "$LANG" >> "$LOG"
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echo "OK: $LANG claimed at $ISO"
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