blob: f252d124d27446a7952bd45b099219a8880c793c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
[ -n "$VERCOMP_HELPER" ] && return || readonly VERCOMP_HELPER=1
vercomp_internal () {
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
}
vercomp() {
vercomp_internal $1 $2
case $? in
0) op='=';;
1) op='>';;
2) op='<';;
esac
echo "$op"
}
## vim: set ft=sh sw=4 sts=4 et foldmethod=syntax : ##
|