| #!/bin/sh |
| |
| # Check if a package whose name and version are specified as input is installed. |
| # Return 0 if the package is installed, 1 if the version is not correct, 2 if the package is not installed |
| # |
| # Usage: |
| # $ ./isInstalled param1 [param2, param3] |
| # * param1: packageId |
| # * param2: version comparator |
| # * param3: version of the package |
| |
| foundVersion=$(dpkg-query -f='${version}' --show $1) |
| |
| #The package is found, check the version |
| if [ $? -eq 0 ]; then |
| if [ "$#" -eq 1 ]; then |
| return 0; |
| fi |
| dpkg --compare-versions $foundVersion $2 $3 |
| if [ $? -eq 0 ]; then |
| return 0; |
| else |
| return 1; |
| fi |
| fi |
| |
| #We are here because the package is not found |
| return 2; |
