Error parsing diff Expected "rename from ", but got "copy from si"

[dubcanada]

Hey,

While I was viewing one of my diffs for a commit I got a

Expected "rename from ", but got "copy from si"

This error occurred because I copied pretty much my entire file from one from to another (but did a few changes, so git diff returned...

similarity index 97%
copy from style.css
copy to common.css

Similarity index can also be copy, it's not restricted to just renaming.

I'll see if I can get a pull request done. But how do you generally handle multiple options? I can't seem to find any other example. For now I just wrapped it in a try catch.

[alexandresalome]

By now, diff command is executed by default with some parameters to detect copies and renames. Those should be options in Diff constructor and passed to ->run(...) properly.

This problem needs to be addressed in two parts:

1. Modify the Diff object to accept parameters for the strategy (detect renames, copies, white spaces and so on)
2. Modify the DiffParser to tolerate all possible outputs.