|
# http://stackoverflow.com/questions/4023830/bash-how-compare-two-strings-in-version-format/4025065#4025065 |
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# 0: =, 1: >, 2: < |
|
vercomp () { |
|
if [[ $1 == $2 ]] |
|
then |
|
return 0 |
|
fi |
|
local IFS=. |
|
local i ver1=($1) ver2=($2) |
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# fill empty fields in ver1 with zeros |
|
for ((i=${#ver1[@]}; i<${#ver2[@]}; i++)) |
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do |
|
ver1[i]=0 |
|
done |
|
for ((i=0; i<${#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 |
|
} |
|
|
|
REQUIRED_VERSION=6.1 |
|
VERSION=`xcodebuild -version | head -n 1 | cut -d ' ' -f 2` |
|
vercomp $VERSION $REQUIRED_VERSION |
|
if [[ $? == 2 ]]; then |
|
# http://briksoftware.com/blog/?p=120 |
|
echo "error: required Xcode version ${REQUIRED_VERSION}" |
|
fi |
