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#!/usr/bin/env bash |
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set -Eeuo pipefail |
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escape () { |
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local s |
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s=${1//&/\&} |
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s=${s//</\<} |
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s=${s//>/\>} |
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s=${s//'"'/\"} |
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printf -- %s "$s" |
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return 0 |
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} |
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file="$1" |
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total="$2" |
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body=$(escape "$3") |
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info="/run/shm/msg.html" |
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if [[ "$body" == *"..." ]]; then |
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body="<p class=\"loading\">${body/.../}</p>" |
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fi |
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while true |
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do |
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if [ -s "$file" ]; then |
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bytes=$(du -sb "$file" | cut -f1) |
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if (( bytes > 1000 )); then |
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if [ -z "$total" ] || [[ "$total" == "0" ]]; then |
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size=$(numfmt --to=iec --suffix=B "$bytes" | sed -r 's/([A-Z])/ \1/') |
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else |
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size="$(echo "$bytes" "$total" | awk '{printf "%.1f", $1 * 100 / $2}')" |
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size="$size%" |
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fi |
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echo "${body//(\[P\])/($size)}"> "$info" |
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fi |
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fi |
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sleep 1 & wait $! |
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done |
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