26 lines
637 B
Bash
26 lines
637 B
Bash
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#! /bin/sh
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set -euf
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# require flock from util-linux (pkgs.utillinux)
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if test "${FLOCK-}" != "$state_file"; then
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exec env FLOCK="$state_file" flock "$state_file" "$0" "$@"
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fi
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# TODO tell now, if already joined
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jq -r <"$state_file" \
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--arg to "$_from" \
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--arg msgtarget "$_msgtarget" \
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'
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select(.to == $to and .msgtarget == $msgtarget) |
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"\(.to): \(.text) \u00032-- \(.from)\u00032 \(.date)"
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'
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jq -c <"$state_file" >"$state_file.tmp" \
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--arg to "$_from" \
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--arg msgtarget "$_msgtarget" \
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'
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select((.to == $to and .msgtarget == $msgtarget) | not)
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'
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mv "$state_file.tmp" "$state_file"
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