68 lines
1.3 KiB
Bash
68 lines
1.3 KiB
Bash
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#!/bin/bash
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# Time in seconds between each check
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interval=3600
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# Number of updates displayed in tooltip
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max_shown=25
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function check {
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# Initiate variables
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declare -i retry_count=0
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declare -i max_retries=5
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declare -i retry_delay=30
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declare -i success=0
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# Retry until success or retry count reaches max_retries
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while [[ $retry_count -le $max_retries && $success -ne 1 ]]; do
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cmd_res="$(checkupdates 2>&1)"
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case $? in
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# Update(s) available
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0)
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success=1
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count=$(echo "$cmd_res" | wc -l)
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tooltip="$(echo "$cmd_res" | head -n "$max_shown" | sed -z 's/\n/\\n/g' | sed 's/\\n$//')"
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if [[ $count -gt $max_shown ]]; then
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tooltip="$tooltip\n[..] +$((count - max_shown))"
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fi
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class=" "
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;;
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# No update available
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2)
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success=1
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count=0
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tooltip="No update available."
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class="disabled"
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;;
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*)
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retry_count+=1
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count=""
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tooltip="$(echo "$cmd_res" | sed -z 's/\n/\\n/g' | sed 's/\\n$//')"
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class="error"
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;;
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esac
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# Show time of check
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time="$(date '+%H:%M:%S')"
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tooltip="$tooltip\n\nLatest check: $time"
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cat <<- EOF
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{"count": "$count", "tooltip": "$tooltip", "class": "$class"}
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EOF
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[[ $success -ne 1 ]] && sleep $retry_delay
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done
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}
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declare -i sleep_pid
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while :; do
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check
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sleep $interval &
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sleep_pid=$!
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trap "kill $sleep_pid" USR1
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wait $sleep_pid
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done
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