Compare your code across Instances/Environments !!

[anshuman_bhatia]

Pasted below is the code which can be used to compare your code across different environments. Of course, the assumption here is that the sys ids will remain same across the sub prod(s) and prod.

doCompare();
function getRemoteObject(){

// Look for only the last modified versions of the script
// This is a GlideRemote call and is just like GlideRecord except that it is Remote . Hence the name glideremote 😛
var gRemote = new GlideRemoteGlideRecord('https://myinstance.service-now.com','sys_update_version')
gRemote.setBasicAuth('enteryournamehere','enteryourpasswordhere');
gRemote.addQuery('name','sys_script_include_90c4220521b81500f3788a874b8c00b8');
gRemote.orderByDesc('sys_created_on');
gRemote.setLimit(1);
gRemote.query();


if(gRemote.next()){
//gs.print("remote");
return gRemote;
}
else{
return null;
}

}

function getLocalObject(){

// Look for only the last modified versions of the script
var gLocal = new GlideRecord('sys_update_version');
gLocal.addQuery('name','sys_script_include_90c4220521b81500f3788a874b8c00b8');
gLocal.orderByDesc('sys_created_on');
gLocal.setLimit(1);
gLocal.query();

if(gLocal.next()){
//gs.print("local");
return gLocal;
}
else{
return null;
}
}



function doCompare(){

// This is a SI Helper class that ServiceNow uses to compare the code from the Versions table.
var diffHelper = new DiffHelper();

/* Fetch the local and remote objects. These calls can be used to pass in the parameters to
   replace the hardcoded values. The update version name is in this format - name of the table_sys id
*/
var gLocal = getLocalObject();
var gRemote = getRemoteObject();

if(gLocal!=null && gRemote!=null && gLocal.getValue('payload')!='' && gRemote.getValue('payload')!=''){


// This is the part which actually generates the side by side comparison
            var diff = diffHelper.diffXMLString(gLocal.getValue('payload'), gRemote.getValue('payload'));
              gs.print(diffHelper.getVersionTemplate(diff, gLocal, gRemote, true));

}

}

The code is simple enough and has comments where some explanation may be necessary.


The output from the above script can then be passed on to the Glidebox code below. This will generate the comparison results in an easy graphical format.

// abc is the output from the previous script block.
var dialog = new GlideBox({
body: abc,
title:"Code Comparison from Demo001 & Demo002",
        height: "95%",
        width: "95%",
        autoDimensionOnLoad: 'false'
    });
    abc.evalScripts(true);
    dialog.render();

[adiddigi]

This is a very neat concept and code. Thank you.

And even if the sys_ids aren't same, You can still query to check the difference between two scripts by passing the respective code in

 doCompare

function I guess. I will be using the

 GlideBox

( didn't know about this earlier) in my Git implementation.

[jason_petty]

Yes, this is very cool. Thanks for sharing!

[anshuman_bhatia]

Abhiram : Passing a different sys_id for the target instance does not work. Apparently this function

diffHelper.getVersionTemplate

is matching the sys ids before rendering the comparison results.

And

GlideBox

is the actual implementation class for

GlideOverlay

which is used by surveys as well as app creator popups.

[Aaron40]

That's a pretty neat script and it introduced me to a new type of GlideRecord I haven't become acquainted with. I did a Google as well as a Wiki search and didn't find much.

Anyone have a link to something that describes GlideRemoteGlideRecord?