56 lines
1.4 KiB
Fish
56 lines
1.4 KiB
Fish
#!/bin/env fish
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function waitNetwork -a witness
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set -l timeout (math 10 \* 60)
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set -l codeFile (mktemp)
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function testNetwork
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# Ping digitalcourage DNS server
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# https://digitalcourage.de/
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ping -q -c1 5.9.164.112 > /dev/null
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end
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if [ -z "$witness" ]
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if not testNetwork
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tmux new-session -d 'cat /etc/motd; echo "$(tput bold)Please establish an internet connection…$(tput sgr0)"; $SHELL'
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fish (status filename) true &
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set -l pid "$last_pid"
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function witnessHandler -V codeFile --on-process-exit "$pid" -a event pid code
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echo "$code" > "$codeFile"
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if [ "$code" -gt 0 ]
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echo "Unable to connect to the internet!"
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end
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end
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tmux attach
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wait "$pid"
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return "$(cat "$codeFile")"
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end
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else
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set -l x 0
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while true
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set x (math $x + 1)
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if testNetwork
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tmux kill-session &> /dev/null
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break
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else
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not tmux list-sessions &> /dev/null
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or test "$x" -gt 10
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and begin
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tmux kill-session &> /dev/null
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exit 1
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end
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end
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sleep 1
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end
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end
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end
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if [ -n "$argv" ]
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waitNetwork $argv
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end
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