My expertise in shellscript/perl can be ranged to Beginner!
Hence, a detailed help would be very much appreciated.

I’ve written a script to compare versions of the installed and installing software(Package). Could you let me know where am I missing the link..

==============

#!/bin/bash

## Assuming that the script will be placed in the Pkg/Contents/Resources folder

path=`pwd `

cd..

PKG_PATH=`pwd `

PKG_INFO_PATH=”${PKG_PATH}/Contents/Info”
INSTALLED_COMPONENT_INFO_PATH=”/Applications/appname/Contents/Info”

function CompareVersions()
{
local FIRST_VERSION=${1}
local SECOND_VERSION=${2}

#Installing component

local MAJOR_FIRST_VERSION=$(echo ${FIRST_VERSION} | cut -d ‘.’ -f 1)
local MINOR_FIRST_VERSION=$(echo ${FIRST_VERSION} | cut -d ‘.’ -f 2)
local BUILD_FIRST_VERSION=$(echo ${FIRST_VERSION} | cut -d ‘.’ -f 3)

#Installed component
local MAJOR_SECOND_VERSION=$(echo ${SECOND_VERSION} | cut -d ‘.’ -f 1)
local MINOR_SECOND_VERSION=$(echo ${SECOND_VERSION} | cut -d ‘.’ -f 2)
local BUILD_SECOND_VERSION=$(echo ${SECOND_VERSION} | cut -d ‘.’ -f 3)

if [ ${MAJOR_FIRST_VERSION} -gt ${MAJOR_SECOND_VERSION} ]; then
exit 0
elif [ ${MAJOR_FIRST_VERSION} -lt ${MAJOR_SECOND_VERSION} ]; then
exit 65
elif [ ${MINOR_FIRST_VERSION} -gt ${MINOR_SECOND_VERSION} ]; then
exit 0
elif [ ${MINOR_FIRST_VERSION} -lt ${MINOR_SECOND_VERSION} ]; then
exit 65
elif [ ${BUILD_FIRST_VERSION} -gt ${BUILD_SECOND_VERSION} ]; then
exit 0
elif [ ${BUILD_FIRST_VERSION} -lt ${BUILD_SECOND_VERSION} ]; then
exit 65
fi

exit 0
}

if [ -e "${INSTALLED_COMPONENT_INFO_PATH}.plist" ]; then
INSTALLED_COMPONENT_VERSION=$(defaults read “${INSTALLED_COMPONENT_INFO_PATH}” “CFBundleShortVersionString”)
INSTALLING_COMPONENT_VERSION=$(defaults read “${PKG_INFO_PATH}” “CFBundleShortVersionString”)
CompareVersions “${INSTALLING_COMPONENT_VERSION}” “${INSTALLED_COMPONENT_VERSION}”
else
exit 0
fi

===================

Here, I am able to get the version numbers of the Installed component and the “yet to be” installed component.
But how do I get the final Result (i.e if the Version check Fails) and get the Versioncheck.strings to display the error message(in case of Error) in the Installer window?

Thanks in advance,

Ruby

i need a help with packagemaker app.

I need my Installer to verify if there is actually a newer version of the software installed on the system. If YES, warn the user and abort the install process. If No, upgrade the existing version.

Do you have a script that can do this for me?

Thanks,
ruby

blake

If Apple was saying the machines supported 8GB of RAM, and you saw the issues you have seen, then by all means, tear into them. You would not be the only one, i guarantee it. But they don’t say that. And while i’m sure you’re not the only one who’s tried and failed to run 8GB of RAM in a MacbookPro3,1, you’re the only one on a competitors website, on a relatively popular blog, saying that its Snow Leopard’s fault, Apple’s fault, WHEN ITS NOT.

And I’d like to point out that Keith is correct, that underlying hardware Apple uses is fully capable in other systems (his ThinkPad that he references several times). But the BLACK AND WHITE basis of my argument is: APPLE SAYS NO.

This is the problem with a Microsoft Blog, taking a crack at an Apple paradigm. Microsoft will support hardware that doesn’t even exist any more. They TOUT that Win7 runs GREAT on older machines. Apple’s approach is more akin to Toasters or Cell phones. when your old model no longer does what you want it to do, or breaks down, or isn’t supported any more, you buy a new one. I’m really sorry that Keith’s machine won’t run Snow Leopard’s 64-bit kernel, but it didn’t make the cut. My fiancee’s iBook won’t run snow leopard at all. In time, she’ll get upgraded to something newer, but for now the iBook serve’s its purpose as an email-checker, a web browser, and occasionally a paper-writer. Keith’s is still an awesome, powerful machine, that is somewhat handicapped by a limit Apple imposes for whatever reason. That limit is well published, and he KNEW it when he bought it. If Keith wanted a machine that would run 8GB of RAM, he should have found one that runs 8GB of RAM, and if not, then exercise this ‘Freedom of choice’ Microsoft is so big on lately and *not* bought the Macbook.

Keith, man, it ain’t personal, and its not me getting angry or attacking your thoughts or opinions (I leave that to the guys @ AngryMacBastards). Its about the truth, and its the same reason I was pissed off about the Laptop Hunter ads.

If Apple was saying the machines supported 8GB of RAM, and you saw the issues you have seen, then by all means, tear into them. You would not be the only one, i guarantee it. But they don’t say that. And while i’m sure you’re not the only one who’s tried and failed to run 8GB of RAM in a MacbookPro3,1, you’re the only one on a competitors website, on a relatively popular blog, saying that its Snow Leopard’s fault, Apple’s fault, WHEN ITS NOT.

And I’d like to point out that Keith is correct, that underlying hardware Apple uses is fully capable in other systems (his ThinkPad that he references several times). But the BLACK AND WHITE basis of my argument is: APPLE SAYS NO.

This is the problem with a Microsoft Blog, taking a crack at an Apple paradigm. Microsoft will support hardware that doesn’t even exist any more. They TOUT that Win7 runs GREAT on older machines. Apple’s approach is more akin to Toasters or Cell phones. when your old model no longer does what you want it to do, or breaks down, or isn’t supported any more, you buy a new one. I’m really sorry that Keith’s machine won’t run Snow Leopard’s 64-bit kernel, but it didn’t make the cut. My fiancee’s iBook won’t run snow leopard at all. In time, she’ll get upgraded to something newer, but for now the iBook serve’s its purpose as an email-checker, a web browser, and occasionally a paper-writer. Keith’s is still an awesome, powerful machine, that is somewhat handicapped by a limit Apple imposes for whatever reason. That limit is well published, and he KNEW it when he bought it. If Keith wanted a machine that would run 8GB of RAM, he should have found one that runs 8GB of RAM, and if not, then exercise this ‘Freedom of choice’ Microsoft is so big on lately and *not* bought the Macbook.

Keith, man, it ain’t personal, and its not me getting angry or attacking your thoughts or opinions (I leave that to the guys @ AngryMacBastards). Its about the truth, and its the same reason I was pissed off about the Laptop Hunter ads.