Stack local preview is slow in large working trees.

[armooo]

The ignore options to local preview still stat and process all files in the working tree. In large monorepo or projects with many ignored files, node_module being one common example, just processing the matchFn from GetIgnoreMatcherFn takes most of the time. It looks like the matcher support was added in a fork of archiver here.

One option I see is to change it to return SkipDir in the WalkFunc` if we are skipping a directory. I have tested this out for my example and with #288 the time to create the archive has gone from minutes to milliseconds. If this seems like a good solution to you I can send some PRs.