79 lines
1.9 KiB
Bash
79 lines
1.9 KiB
Bash
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#!/bin/bash
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# 20260522 ChatGPT
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# $Header$
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#
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# Example:
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# ./run_sync.sh little_boy_blue 14:40
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# ./run_sync.sh childrens_hour 14:40
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# ./run_sync.sh ./little_boy_blue 14:40
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#
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# Optional with timeout:
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# ./run_sync.sh little_boy_blue 14:40 300
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#
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set -euo pipefail
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if [ "$#" -lt 2 ] || [ "$#" -gt 3 ]; then
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echo "Usage: $0 binary_name HH:MM [run_seconds]"
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echo "Example: $0 little_boy_blue 14:40"
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echo "Example: $0 little_boy_blue 14:40 300"
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exit 1
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fi
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BINARY="$1"
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START_TIME="$2"
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RUN_SECONDS="${3:-}"
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# If the binary name does not contain a slash, assume it is in the current directory.
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case "$BINARY" in
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*/*) CMD="$BINARY" ;;
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*) CMD="./$BINARY" ;;
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esac
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if [ ! -x "$CMD" ]; then
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echo "ERROR: command is not executable: $CMD"
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echo
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echo "Check with:"
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echo " ls -l $CMD"
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echo " chmod 755 $CMD"
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exit 1
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fi
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TARGET_EPOCH=$(date -d "today ${START_TIME}" +%s)
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NOW_EPOCH=$(date +%s)
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# If requested time already passed today, assume tomorrow.
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if [ "$TARGET_EPOCH" -le "$NOW_EPOCH" ]; then
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TARGET_EPOCH=$(date -d "tomorrow ${START_TIME}" +%s)
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fi
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SLEEP_SECONDS=$(( TARGET_EPOCH - NOW_EPOCH ))
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mkdir -p "$HOME/logs"
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echo "Host: $(hostname)"
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echo "Binary: $CMD"
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echo "Now: $(date '+%Y%m%d_%H%M%S %Z')"
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echo "Target time: $(date -d "@${TARGET_EPOCH}" '+%Y%m%d_%H%M%S %Z')"
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echo "Sleeping for: ${SLEEP_SECONDS} seconds"
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sleep "$SLEEP_SECONDS"
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STAMP=$(date +%Y%m%d_%H%M%S)
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SAFE_BINARY=$(basename "$BINARY")
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LOG="$HOME/logs/$(hostname)_${SAFE_BINARY}_${STAMP}.log"
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{
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echo "SYNC_START_HOST=$(hostname)"
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echo "SYNC_START_BINARY=$CMD"
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echo "SYNC_START_EPOCH=$(date +%s.%N)"
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echo "SYNC_START_LOCAL=$(date '+%Y%m%d_%H%M%S.%N %Z')"
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echo "SYNC_LOG_FILE=$LOG"
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echo "========================================"
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} | tee "$LOG"
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if [ -n "$RUN_SECONDS" ]; then
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exec timeout "$RUN_SECONDS"s "$CMD" 2>&1 | tee -a "$LOG"
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else
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exec "$CMD" 2>&1 | tee -a "$LOG"
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fi
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