Merge branch 'nd/tree-walk-path-exclusion'

[thirdparty/git.git] / fetch-pack.c

diff --git a/fetch-pack.c b/fetch-pack.c
index b3ed7121bc86805e87e909ff995eb8b439a2f995..9691046e6445837beefde3d8ae5e842063842575 100644 (file)
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -1248,6 +1248,18 @@ static int process_acks(struct fetch_negotiator *negotiator,
            reader->status != PACKET_READ_DELIM)
                die(_("error processing acks: %d"), reader->status);
 
+       /*
+        * If an "acknowledgments" section is sent, a packfile is sent if and
+        * only if "ready" was sent in this section. The other sections
+        * ("shallow-info" and "wanted-refs") are sent only if a packfile is
+        * sent. Therefore, a DELIM is expected if "ready" is sent, and a FLUSH
+        * otherwise.
+        */
+       if (received_ready && reader->status != PACKET_READ_DELIM)
+               die(_("expected packfile to be sent after 'ready'"));
+       if (!received_ready && reader->status != PACKET_READ_FLUSH)
+               die(_("expected no other sections to be sent after no 'ready'"));
+
        /* return 0 if no common, 1 if there are common, or 2 if ready */
        return received_ready ? 2 : (received_ack ? 1 : 0);
 }