go/misc/dist/darwin/Distribution

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<installer-script minSpecVersion="1.000000">
    <title>Go</title>
    <background mime-type="image/png" file="bg.png"/>
    <options customize="never" allow-external-scripts="no"/>
    <domains enable_localSystem="true" />
    <installation-check script="installCheck();"/>
    <script>
function installCheck() {
    if(!(system.compareVersions(system.version.ProductVersion, '10.6.0') >= 0)) {
        my.result.title = 'Unable to install';
        my.result.message = 'Go requires Mac OS X 10.6 or later.';
        my.result.type = 'Fatal';
        return false;
    }
    if(system.files.fileExistsAtPath('/usr/local/go/bin/go')) {
	    my.result.title = 'Previous Installation Detected';
	    my.result.message = 'A previous installation of Go exists at /usr/local/go. This installer will remove the previous installation prior to installing. Please back up any data before proceeding.';
	    my.result.type = 'Warning';
	    return false;
	}
    return true;    
}
    </script>
    <choices-outline>
        <line choice="com.googlecode.go.choice"/>
    </choices-outline>
    <choice id="com.googlecode.go.choice" title="Go">
        <pkg-ref id="com.googlecode.go.pkg"/>
    </choice>
    <pkg-ref id="com.googlecode.go.pkg" auth="Root">com.googlecode.go.pkg</pkg-ref>
</installer-script>