Andrew Gallant f9ce7a84a8 ignore: add 'same_file_system' option
This commit adds a 'same_file_system' option to the walk builder. For
single threaded walking, it defers to the walkdir crate, which has the
same option. The bulk of this commit implements this flag for the parallel
walker. We add one very feeble test for this.

The parallel walker is now officially a complete mess.

Closes #321
2018-08-26 18:42:25 -04:00
..
_rg
2018-08-26 18:42:25 -04:00