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code snippet for loading comparing models from GIT [message #1768366]

Tue, 18 July 2017 05:12

Mojtaba Bagherzadeh

Messages: 33
Registered: April 2016

Member

Hi Everyone,

I am trying to the EMFCompare programmatically to compare a version of a model in the workspace with another version of that in the git. I found some useful information to do it on models from when they are on the local disk as below code, but I do not know how I can do the same thing if the models are located in a git repository?

Thanks
Mojtaba

URI uri1 = URI.createFileURI("/Users/workspace-papyrus-rt_user/cs.queensu.ca.emfcompare/src/cs/queensu/ca/emfcompare/actions/left.uml");
URI uri2 = URI.createFileURI("/Users/workspace-papyrus-rt_user/cs.queensu.ca.emfcompare/src/cs/queensu/ca/emfcompare/actions/right.uml");

Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap().put("uml", UMLResource.Factory.INSTANCE);
ResourceSet resourceSet1 = new ResourceSetImpl();
ResourceSet resourceSet2 = new ResourceSetImpl();

resourceSet1.getResource(uri1, true);
resourceSet2.getResource(uri2, true);

IComparisonScope scope = new DefaultComparisonScope(resourceSet1, resourceSet2, null);
Comparison comparison = EMFCompare.builder().build().compare(scope);

List<Diff> differences = comparison.getDifferences();
System.out.println(differences);

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Re: code snippet for loading comparing models from GIT [message #1768379 is a reply to message #1768366]

Tue, 18 July 2017 07:54

Laurent Goubet

Messages: 1858
Registered: July 2009

Senior Member

Hi,

Programmatic access to the Git history is not as easily done, you will have to look around at the EGit documentation for that since EMF Compare doesn't do that directly. You might want to take a look at the "Compare With" action implementations from the EGit side since they're what's browsing the history and selecting revisions. An example of that would be org.eclipse.egit.ui.internal.actions.CompareWithHeadAction.

Laurent Goubet
Obeo

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