39 lines
1 KiB
Bash
Executable file
39 lines
1 KiB
Bash
Executable file
#!/usr/bin/env zsh
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set -e
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(( $# > 0 )) || exit
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# Displays the time since $1 in a human readable format (e.g. 4h 25m 55s). If
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# given a file, the modified time is used. If $1 == "--", then this script acts
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# as a converter, converting $2 into human a readable format, e.g. since -- 72
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# #=> 1m 12s
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# TODO: A help fallback
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# TODO: Options parsing?
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# If given a file, give time since last modification
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(( $# == 1 )) && [[ -f $1 ]] && arg=reference || arg=date
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if [[ $1 == -- ]]; then
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t="$2"
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else
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now=$(date +%s)
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then=$(date --$arg="$*" +%s)
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t=$(( now - then ))
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fi
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# Bash doesn't support floating point arithmetic like zsh does, so use bc to do
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# our arithmetic.
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zmodload zsh/mathfunc
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t=$(( abs(t) ))
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weeks=$(( t / 60 / 60 / 24 / 7 ))
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days=$(( t / 60 / 60 / 24 % 7 ))
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hours=$(( t / 60 / 60 % 24 ))
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minutes=$(( t / 60 % 60 ))
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seconds=$(( t % 60 ))
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(( weeks > 0 )) && echo -n "${weeks}w "
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(( days > 0 )) && echo -n "${days}d "
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(( hours > 0 )) && echo -n "${hours}h "
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(( minutes > 0 )) && echo -n "${minutes}m "
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echo -n "${seconds}s"
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