Merge branch 'jt/non-blob-lazy-fetch'

A partial clone that is configured to lazily fetch missing objects
will on-demand issue a "git fetch" request to the originating
repository to fill not-yet-obtained objects.  The request has been
optimized for requesting a tree object (and not the leaf blob
objects contained in it) by telling the originating repository that
no blobs are needed.

* jt/non-blob-lazy-fetch:
  fetch-pack: exclude blobs when lazy-fetching trees
  fetch-pack: avoid object flags if no_dependents

1 files changed, 7 insertions, 0 deletions

diff --git a/fetch-pack.h b/fetch-pack.h
index 5b6e868802..43ec344d95 100644
--- a/fetch-pack.h
+++ b/fetch-pack.h
@@ -43,6 +43,13 @@ struct fetch_pack_args {
 	unsigned from_promisor:1;
 
 	/*
+	 * Attempt to fetch only the wanted objects, and not any objects
+	 * referred to by them. Due to protocol limitations, extraneous
+	 * objects may still be included. (When fetching non-blob
+	 * objects, only blobs are excluded; when fetching a blob, the
+	 * blob itself will still be sent. The client does not need to
+	 * know whether a wanted object is a blob or not.)
+	 *
 	 * If 1, fetch_pack() will also not modify any object flags.
 	 * This allows fetch_pack() to safely be called by any function,
 	 * regardless of which object flags it uses (if any).