private static void runExamples() throws Exception {
	// This is a temp folder to clone or checkout git repositories.
	File tempFolder = new File("temp");

	// Creates a RefDiff instance configured with the JavaScript parser.
	JsParser jsParser = new JsParser();
	RefDiff refDiffJs = new RefDiff(jsParser);

	// Clone the angular.js GitHub repo.
	File angularJsRepo = refDiffJs.cloneGitRepository(
		new File(tempFolder, "angular.js"),
		"https://github.com/refdiff-study/angular.js.git");

	// You can compute the relationships between the code elements in a commit with
	// its previous commit. The result of this operation is a CstDiff object, which
	// contains all relationships between CstNodes. Relationships whose type is different
	// from RelationshipType.SAME are refactorings.
	CstDiff diffForCommit = refDiffJs.computeDiffForCommit(angularJsRepo, "2636105");
	printRefactorings("Refactorings found in angular.js 2636105", diffForCommit);
}
private static void printRefactorings(String headLine, CstDiff diff) {
	System.out.println(headLine);
	for (Relationship rel : diff.getRefactoringRelationships()) {
		System.out.println(rel.getStandardDescription());
	}
}

// You can also mine refactoring from the commit history. In this example we navigate
// the commit graph backwards up to 5 commits. Merge commits are skipped.
refDiffJs.computeDiffForCommitHistory(angularJsRepo, 5, (commit, diff) -> {
	printRefactorings("Refactorings found in angular.js " + commit.getId().name(), diff);
});

// In this example, we use the parser for C.
CParser cParser = new CParser();
RefDiff refDiffC = new RefDiff(cParser);

File gitRepo = refDiffC.cloneGitRepository(
	new File(tempFolder, "git"),
	"https://github.com/refdiff-study/git.git");

printRefactorings(
	"Refactorings found in git ba97aea",
	refDiffC.computeDiffForCommit(gitRepo, "ba97aea1659e249a3a58ecc5f583ee2056a90ad8"));


// Now, we use the parser for Java.
JavaParser javaParser = new JavaParser(tempFolder);
RefDiff refDiffJava = new RefDiff(javaParser);

File eclipseThemesRepo = refDiffC.cloneGitRepository(
	new File(tempFolder, "eclipse-themes"),
	"https://github.com/icse18-refactorings/eclipse-themes.git");

printRefactorings(
	"Refactorings found in eclipse-themes 72f61ec",
	refDiffJava.computeDiffForCommit(eclipseThemesRepo, "72f61ec"));