I'm looking at dir.c, and there's a bit I'm confused about:
prep_exclude() says:
/*
* .. and .gitignore does not exist before
* (i.e. null exclude_sha1 and skip_worktree is
* not set). Then we can skip loading .gitignore,
* which would result in ENOENT anyway.
* skip_worktree is taken care in read_directory()
*/
!is_null_sha1(untracked->exclude_sha1))) {
That "skip_worktree is taken care in read_directory()" appears to be
referring to this bit of validate_untracked_cache():
/*
* An optimization in prep_exclude() does not play well with
* CE_SKIP_WORKTREE. It's a rare case anyway, if a single
* entry has that bit set, disable the whole untracked cache.
*/
for (i = 0; i < active_nr; i++)
if (ce_skip_worktree(active_cache[i]))
return NULL;
------------
I'm confused about why skip_worktree needs to be unset. When I comment
out the second snippet, all the tests still pass. What was the reason
behind that condition? Is it really necessary?
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