safe_create_leading_directories: fix race that could give a false negative

diff --git a/builtin/send-pack.c b/builtin/send-pack.c
index d5d7105ba2debde9fa6f2f33171d84cc7c25339a..7d05064218184b815fe01228a24138c1f9ac7c7f 100644 (file)
--- a/builtin/send-pack.c
+++ b/builtin/send-pack.c
@@ -8,6 +8,7 @@
 #include "send-pack.h"
 #include "quote.h"
 #include "transport.h"
+#include "version.h"
 
 static const char send_pack_usage[] =
 "git send-pack [--all | --mirror] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
@@ -251,6 +252,7 @@ int send_pack(struct send_pack_args *args,
        int status_report = 0;
        int use_sideband = 0;
        int quiet_supported = 0;
+       int agent_supported = 0;
        unsigned cmds_sent = 0;
        int ret;
        struct async demux;
@@ -266,6 +268,8 @@ int send_pack(struct send_pack_args *args,
                use_sideband = 1;
        if (server_supports("quiet"))
                quiet_supported = 1;
+       if (server_supports("agent"))
+               agent_supported = 1;
 
        if (!remote_refs) {
                fprintf(stderr, "No refs in common and none specified; doing nothing.\n"
@@ -305,12 +309,17 @@ int send_pack(struct send_pack_args *args,
                        char *new_hex = sha1_to_hex(ref->new_sha1);
                        int quiet = quiet_supported && (args->quiet || !args->progress);
 
-                       if (!cmds_sent && (status_report || use_sideband || args->quiet)) {
-                               packet_buf_write(&req_buf, "%s %s %s%c%s%s%s",
+                       if (!cmds_sent && (status_report || use_sideband ||
+                                          quiet || agent_supported)) {
+                               packet_buf_write(&req_buf,
+                                                "%s %s %s%c%s%s%s%s%s",
                                                 old_hex, new_hex, ref->name, 0,
                                                 status_report ? " report-status" : "",
                                                 use_sideband ? " side-band-64k" : "",
-                                                quiet ? " quiet" : "");
+                                                quiet ? " quiet" : "",
+                                                agent_supported ? " agent=" : "",
+                                                agent_supported ? git_user_agent_sanitized() : ""
+                                               );
                        }
                        else
                                packet_buf_write(&req_buf, "%s %s %s",