Merge pull request #1105 from vijayank88/klayout_check

check klayout version for centos

Author: vvbandeira

etc/DependencyInstaller.sh

@@ -12,6 +12,12 @@ fi
 # package versions
 klayoutVersion=0.28.8
 
+_versionCompare() {
+    local a b IFS=. ; set -f
+    printf -v a %08d $1; printf -v b %08d $3
+    test $a "$2" $b
+}
+
 _installORDependencies() {
     ./tools/OpenROAD/etc/DependencyInstaller.sh ${OR_INSTALLER_ARGS}
 }
@@ -39,7 +45,18 @@ _installCentosPackages() {
         ruby-devel \
         tcl-devel
 
-    yum install -y https://www.klayout.org/downloads/CentOS_7/klayout-${klayoutVersion}-0.x86_64.rpm
+    if ! [ -x "$(command -v klayout)" ]; then
+      yum install -y https://www.klayout.org/downloads/CentOS_7/klayout-${klayoutVersion}-0.x86_64.rpm
+    else
+      currentVersion=$(klayout -v | grep -o '[0-9]\+\.[0-9]\+\.[0-9]\+')
+      if _versionCompare $currentVersion -ge $klayoutVersion; then
+        echo "KLayout version greater than or equal to ${klayoutVersion}"
+      else
+        echo "KLayout version less than ${klayoutVersion}"
+        sudo yum remove -y klayout
+        yum install -y https://www.klayout.org/downloads/CentOS_7/klayout-${klayoutVersion}-0.x86_64.rpm
+      fi 
+    fi
 }
 
 _installUbuntuCleanUp() {