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