github.com/yanyiwu/go@v0.0.0-20150106053140-03d6637dbb7f/misc/makerelease/darwin/Distribution (about)

     1  <?xml version="1.0" encoding="utf-8" standalone="no"?>
     2  <installer-script minSpecVersion="1.000000">
     3      <title>Go</title>
     4      <background mime-type="image/png" file="bg.png"/>
     5      <options customize="never" allow-external-scripts="no"/>
     6      <domains enable_localSystem="true" />
     7      <installation-check script="installCheck();"/>
     8      <script>
     9  function installCheck() {
    10      if(!(system.compareVersions(system.version.ProductVersion, '10.6.0') >= 0)) {
    11          my.result.title = 'Unable to install';
    12          my.result.message = 'Go requires Mac OS X 10.6 or later.';
    13          my.result.type = 'Fatal';
    14          return false;
    15      }
    16      if(system.files.fileExistsAtPath('/usr/local/go/bin/go')) {
    17  	    my.result.title = 'Previous Installation Detected';
    18  	    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.';
    19  	    my.result.type = 'Warning';
    20  	    return false;
    21  	}
    22      return true;    
    23  }
    24      </script>
    25      <choices-outline>
    26          <line choice="com.googlecode.go.choice"/>
    27      </choices-outline>
    28      <choice id="com.googlecode.go.choice" title="Go">
    29          <pkg-ref id="com.googlecode.go.pkg"/>
    30      </choice>
    31      <pkg-ref id="com.googlecode.go.pkg" auth="Root">com.googlecode.go.pkg</pkg-ref>
    32  </installer-script>