Anatole tells me that this works for us. Thanks.
On Sat, 2015-07-18 at 15:37 +0700, Duy Nguyen wrote:
> On Fri, Jul 17, 2015 at 05:19:27PM -0400, David Turner wrote:
> > Don't update files in the worktree from cache entries which are
> > flagged with CE_WT_REMOVE.
> >
> > When a user does a sparse checkout, git removes files that are marked
> > with CE_WT_REMOVE (because they are out-of-scope for the sparse
> > checkout). If those files are also marked CE_UPDATE (for instance,
> > because they differ in the branch that is being checked out and the
> > outgoing branch), git would previously recreate them. This patch
> > prevents them from being recreated.
> >
> > These erroneously-created files would also interfere with merges,
> > causing pre-merge revisions of out-of-scope files to appear in the
> > worktree.
>
> Thank you both for catching this. Just a small suggestion. Perhaps we
> should do this instead. apply_sparse_checkout() is the function where
> all "action" manipulation (add, delete, update files..) for sparse
> checkout occurs and it should not ask to delete and update both at the
> same time.
>
> -- 8< --
> diff --git a/unpack-trees.c b/unpack-trees.c
> index 2927660..d6cf849 100644
> --- a/unpack-trees.c
> +++ b/unpack-trees.c
> @@ -224,6 +224,9 @@ static int check_updates(struct unpack_trees_options *o)
> struct cache_entry *ce = index->cache[i];
>
> if (ce->ce_flags & CE_UPDATE) {
> + if (ce->ce_flags & CE_WT_REMOVE)
> + die("BUG: both update and delete flags are set on %s",
> + ce->name);
> display_progress(progress, ++cnt);
> ce->ce_flags &= ~CE_UPDATE;
> if (o->update && !o->dry_run) {
> @@ -293,6 +296,7 @@ static int apply_sparse_checkout(struct index_state *istate,
> if (!(ce->ce_flags & CE_UPDATE) && verify_uptodate_sparse(ce, o))
> return -1;
> ce->ce_flags |= CE_WT_REMOVE;
> + ce->ce_flags &= ~CE_UPDATE;
> }
> if (was_skip_worktree && !ce_skip_worktree(ce)) {
> if (verify_absent_sparse(ce, ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN, o))
> -- 8< --
>
> --
> Duy
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