merge: allow "-" as a short-hand for "previous branch"

diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index 3c2c9406c499102138495638d98797886855c073..85aff029b225c023f09fda635f16cc00a22ed7ca 100644 (file)
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -1,4 +1,4 @@
-#include "cache.h"
+#include "builtin.h"
 #include "refs.h"
 #include "pkt-line.h"
 #include "commit.h"
@@ -9,6 +9,7 @@
 #include "fetch-pack.h"
 #include "remote.h"
 #include "run-command.h"
+#include "transport.h"
 
 static int transfer_unpack_limit = -1;
 static int fetch_unpack_limit = -1;
@@ -218,17 +219,28 @@ static void send_request(int fd, struct strbuf *buf)
                safe_write(fd, buf->buf, buf->len);
 }
 
+static void insert_one_alternate_ref(const struct ref *ref, void *unused)
+{
+       rev_list_insert_ref(NULL, ref->old_sha1, 0, NULL);
+}
+
+static void insert_alternate_refs(void)
+{
+       foreach_alt_odb(refs_from_alternate_cb, insert_one_alternate_ref);
+}
+
 #define INITIAL_FLUSH 16
+#define PIPESAFE_FLUSH 32
 #define LARGE_FLUSH 1024
 
 static int next_flush(int count)
 {
-       if (count < INITIAL_FLUSH * 2)
-               count += INITIAL_FLUSH;
-       else if (count < LARGE_FLUSH)
+       int flush_limit = args.stateless_rpc ? LARGE_FLUSH : PIPESAFE_FLUSH;
+
+       if (count < flush_limit)
                count <<= 1;
        else
-               count += LARGE_FLUSH;
+               count += flush_limit;
        return count;
 }
 
@@ -251,6 +263,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
        marked = 1;
 
        for_each_ref(rev_list_insert_ref, NULL);
+       insert_alternate_refs();
 
        fetching = 0;
        for ( ; refs ; refs = refs->next) {
@@ -723,7 +736,8 @@ static struct ref *do_fetch_pack(int fd[2],
                if (server_supports("no-done")) {
                        if (args.verbose)
                                fprintf(stderr, "Server supports no-done\n");
-                       no_done = 1;
+                       if (args.stateless_rpc)
+                               no_done = 1;
                }
        }
        else if (server_supports("multi_ack")) {
@@ -833,6 +847,8 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
        char **pack_lockfile_ptr = NULL;
        struct child_process *conn;
 
+       packet_trace_identity("fetch-pack");
+
        nr_heads = 0;
        heads = NULL;
        for (i = 1; i < argc; i++) {