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#!/bin/sh
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self="$(basename "$0")"
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files_daily=$((24*60/45))
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recent_file_limit=$((files_daily * 56))
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recent_file_archive_size=$((files_daily * 28))
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archives_dir="cache-lt/archive/servers"
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base_file_name="$archives_dir/recent/servers.json"
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num_recent_files=$(/bin/ls -1 $base_file_name* 2>/dev/null | wc -l)
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if [ "$num_recent_files" -ge "$recent_file_limit" ] || [ "$1" = "-f" ]; then
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>&2 echo "$self: recent file limit reached, compressing"
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/bin/ls -1tr $base_file_name* |
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head -n "$recent_file_archive_size" |
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xargs tar cf "$archives_dir/servers.tar" --remove-files
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fi
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