mirror of
https://github.com/ViViDboarder/shoestrap.git
synced 2024-11-05 16:16:31 +00:00
61 lines
1.3 KiB
Bash
61 lines
1.3 KiB
Bash
#! /bin/bash
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# Version compare based on
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# http://stackoverflow.com/questions/4023830/bash-how-compare-two-strings-in-version-format
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vercomp() {
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if [[ $1 == $2 ]]
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then
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return 0
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fi
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local IFS=.
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local i ver1=($1) ver2=($2)
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# fill empty fields in ver1 with zeros
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for ((i=${#ver1[@]}; i<${#ver2[@]}; i++))
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do
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ver1[i]=0
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done
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for ((i=0; i<${#ver1[@]}; i++))
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do
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if [[ -z ${ver2[i]} ]]
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then
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# fill empty fields in ver2 with zeros
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ver2[i]=0
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fi
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if ((10#${ver1[i]} > 10#${ver2[i]}))
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then
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return 1
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fi
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if ((10#${ver1[i]} < 10#${ver2[i]}))
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then
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return 2
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fi
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done
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return 0
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}
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vertest() {
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local ver1=($1) op=($2) ver2=($3)
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vercomp $ver1 $ver2
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case $op in
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'=')
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[ $? -eq 0 ] && return 0 || return 1
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;;
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'!=')
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[ $? -ne 0 ] && return 0 || return 1
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;;
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'<')
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[ $? -eq 2 ] && return 0 || return 1
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;;
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'<=')
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[ $? -eq 2 -o $? -eq 0 ] && return 0 || return 1
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;;
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'>')
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[ $? -eq 1 ] && return 0 || return 1
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;;
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'>=')
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[ $? -eq 1 -o $? -eq 0 ] && return 0 || return 1
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;;
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esac
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return -1
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}
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