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1 7259 aaronmk
#!/bin/sh
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# Wraps lockfile/dotlockfile
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# Usage: env [interval=...] self lockfile
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: "${interval=5}" # s
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if test "$(uname)" = Darwin; then
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    while ! shlock -p "$PPID" -f "$1"; do sleep "$interval"; done
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else
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    exec dotlockfile -l -r -1 -p "$1" # need exec to inherit PPID
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fi