[PATCH 11/14] builtin/fetch-pack: add argument for transport version

[Stefan Beller]

Signed-off-by: Stefan Beller <sbel...@google.com>
---
 builtin/fetch-pack.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index bfd0be4..afb614b 100644
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -4,6 +4,7 @@
 #include "remote.h"
 #include "connect.h"
 #include "sha1-array.h"
+#include "transport.h"
 
 static const char fetch_pack_usage[] =
 "git fetch-pack [--all] [--stdin] [--quiet | -q] [--keep | -k] [--thin] "
@@ -56,6 +57,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char 
*prefix)
 
        memset(&args, 0, sizeof(args));
        args.uploadpack = "git-upload-pack";
+       args.transport_version = DEFAULT_TRANSPORT_VERSION;
 
        for (i = 1; i < argc && *argv[i] == '-'; i++) {
                const char *arg = argv[i];
@@ -130,6 +132,10 @@ int cmd_fetch_pack(int argc, const char **argv, const char 
*prefix)
                        args.update_shallow = 1;
                        continue;
                }
+               if (starts_with(arg, "--transport-version=")) {
+                       args.transport_version = strtol(arg + 20, NULL, 0);
+                       continue;
+               }
                usage(fetch_pack_usage);
        }
 
@@ -178,7 +184,19 @@ int cmd_fetch_pack(int argc, const char **argv, const char 
*prefix)
                if (!conn)
                        return args.diag_url ? 0 : 1;
        }
-       get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow);
+
+       switch (args.transport_version) {
+       case 2: /* first talk about capabilities, then get the refs */
+               negotiate_capabilities(fd, &args);
+               /* fall through */
+       case 1:
+               get_remote_heads(fd[0], NULL, 0, &ref, 0, NULL, &shallow);
+               break;
+       default:
+               die("BUG: Transport version %d not supported",
+                       args.transport_version);
+               break;
+       }
 
        ref = fetch_pack(&args, fd, conn, ref, dest, sought, nr_sought,
                         &shallow, pack_lockfile_ptr);
-- 
2.8.0.32.g71f8beb.dirty

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