Fix TRAMP regression

[dvzubarev]

file-attributes accepts trampified paths, otherwise it looks for local files.

[fourier]

Thanks, I don't use ztree over TRAMP so can't test. @Silex does this fix works for you?

[Silex]

The fix looks correct. I see that you attempted to make TRAMP faster by checking the file size instead of doing the diff, but based on the latest comment in #18 it looks like it's still slow.

You'd really set up a test for this, that way you actually can measure differences and regressions.

The test would be fairly simple: have directory A and B (which is a copy of A with differences).

• Test 1: assert ztree finds the corrects diffs between A and B (the diff can be a static list since it's setup).
• Test 2: assert ztree finds the correct diff between A and B, but B sits on a remote server
• Test 3: measure the time taken for the diff when B sits on a remote server and report it. That way you can test the commit impacts on performances.

Repeat and have 3-4 different A & B as input.

[fourier]

Ok I'll accept the fix then.

[fourier]

Merged, thanks @dvzubarev !