Merge branch 'vd/sparse-reset-checkout-fixes' into maint

Fixes to sparse index compatibility work for "reset" and "checkout"
commands.
source: <pull.1312.v3.git.1659985672.gitgitgadget@gmail.com>

* vd/sparse-reset-checkout-fixes:
  unpack-trees: unpack new trees as sparse directories
  cache.h: create 'index_name_pos_sparse()'
  oneway_diff: handle removed sparse directories
  checkout: fix nested sparse directory diff in sparse index

1 files changed, 9 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index ac5ab4ef9d..33fc8337c6 100644
--- a/cache.h
+++ b/cache.h
@@ -831,6 +831,15 @@ struct cache_entry *index_file_exists(struct index_state *istate, const char *na
 int index_name_pos(struct index_state *, const char *name, int namelen);
 
 /*
+ * Like index_name_pos, returns the position of an entry of the given name in
+ * the index if one exists, otherwise returns a negative value where the negated
+ * value minus 1 is the position where the index entry would be inserted. Unlike
+ * index_name_pos, however, a sparse index is not expanded to find an entry
+ * inside a sparse directory.
+ */
+int index_name_pos_sparse(struct index_state *, const char *name, int namelen);
+
+/*
  * Determines whether an entry with the given name exists within the
  * given index. The return value is 1 if an exact match is found, otherwise
  * it is 0. Note that, unlike index_name_pos, this function does not expand