Filtering a diff with a regular expression

Question

It seems that it would be extremely handy to be able to filter a diff so that trivial changes are not displayed. I would like to write a regular expression which would be ru

Answer 1

I use an approach that combines git diff and applying a regular expression matching on the results. In some testing code (PERL), I know that testing is successful when the OutputFingerprint stored in the resulting files of the tests has not changed.

First, I do a

my $matches = `git diff -- mytestfile`

and then evaluate the result:

if($matches =~ /OutputFingerprint/){
  fail();
  return 1;
}else{
  ok();
  return 0;
}