Allow git-checkout when on a non-existant branch.

diff --git a/fetch-pack.c b/fetch-pack.c
index 83713485562fd340a67e5073b443679d0b2a4c24..e8708aa802b8e09d8044bb99dbccb0fecdb14481 100644 (file)
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -24,8 +24,8 @@ static const char *exec = "git-upload-pack";
  */
 #define MAX_IN_VAIN 256
 
-static struct commit_list *rev_list = NULL;
-static int non_common_revs = 0, multi_ack = 0, use_thin_pack = 0;
+static struct commit_list *rev_list;
+static int non_common_revs, multi_ack, use_thin_pack, use_sideband;
 
 static void rev_list_push(struct commit *commit, int mark)
 {
@@ -46,7 +46,7 @@ static int rev_list_insert_ref(const char *path, const unsigned char *sha1)
 {
        struct object *o = deref_tag(parse_object(sha1), path, 0);
 
-       if (o && o->type == commit_type)
+       if (o && o->type == OBJ_COMMIT)
                rev_list_push((struct commit *)o, SEEN);
 
        return 0;
@@ -165,9 +165,15 @@ static int find_common(int fd[2], unsigned char *result_sha1,
                        continue;
                }
 
-               packet_write(fd[1], "want %s%s%s\n", sha1_to_hex(remote),
-                            (multi_ack ? " multi_ack" : ""),
-                            (use_thin_pack ? " thin-pack" : ""));
+               if (!fetching)
+                       packet_write(fd[1], "want %s%s%s%s%s\n",
+                                    sha1_to_hex(remote),
+                                    (multi_ack ? " multi_ack" : ""),
+                                    (use_sideband == 2 ? " side-band-64k" : ""),
+                                    (use_sideband == 1 ? " side-band" : ""),
+                                    (use_thin_pack ? " thin-pack" : ""));
+               else
+                       packet_write(fd[1], "want %s\n", sha1_to_hex(remote));
                fetching++;
        }
        packet_flush(fd[1]);
@@ -245,20 +251,20 @@ static int find_common(int fd[2], unsigned char *result_sha1,
        return retval;
 }
 
-static struct commit_list *complete = NULL;
+static struct commit_list *complete;
 
 static int mark_complete(const char *path, const unsigned char *sha1)
 {
        struct object *o = parse_object(sha1);
 
-       while (o && o->type == tag_type) {
+       while (o && o->type == OBJ_TAG) {
                struct tag *t = (struct tag *) o;
                if (!t->tagged)
                        break; /* broken repository */
                o->flags |= COMPLETE;
                o = parse_object(t->tagged->sha1);
        }
-       if (o && o->type == commit_type) {
+       if (o && o->type == OBJ_COMMIT) {
                struct commit *commit = (struct commit *)o;
                commit->object.flags |= COMPLETE;
                insert_by_date(commit, &complete);
@@ -352,7 +358,7 @@ static int everything_local(struct ref **refs, int nr_match, char **match)
                 * in sync with the other side at some time after
                 * that (it is OK if we guess wrong here).
                 */
-               if (o->type == commit_type) {
+               if (o->type == OBJ_COMMIT) {
                        struct commit *commit = (struct commit *)o;
                        if (!cutoff || cutoff < commit->date)
                                cutoff = commit->date;
@@ -371,7 +377,7 @@ static int everything_local(struct ref **refs, int nr_match, char **match)
                struct object *o = deref_tag(lookup_object(ref->old_sha1),
                                             NULL, 0);
 
-               if (!o || o->type != commit_type || !(o->flags & COMPLETE))
+               if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE))
                        continue;
 
                if (!(o->flags & SEEN)) {
@@ -399,7 +405,7 @@ static int everything_local(struct ref **refs, int nr_match, char **match)
                        continue;
                }
 
-               memcpy(ref->new_sha1, local, 20);
+               hashcpy(ref->new_sha1, local);
                if (!verbose)
                        continue;
                fprintf(stderr,
@@ -421,6 +427,16 @@ static int fetch_pack(int fd[2], int nr_match, char **match)
                        fprintf(stderr, "Server supports multi_ack\n");
                multi_ack = 1;
        }
+       if (server_supports("side-band-64k")) {
+               if (verbose)
+                       fprintf(stderr, "Server supports side-band-64k\n");
+               use_sideband = 2;
+       }
+       else if (server_supports("side-band")) {
+               if (verbose)
+                       fprintf(stderr, "Server supports side-band\n");
+               use_sideband = 1;
+       }
        if (!ref) {
                packet_flush(fd[1]);
                die("no matching remote head");
@@ -437,9 +453,9 @@ static int fetch_pack(int fd[2], int nr_match, char **match)
                        fprintf(stderr, "warning: no common commits\n");
 
        if (keep_pack)
-               status = receive_keep_pack(fd, "git-fetch-pack", quiet);
+               status = receive_keep_pack(fd, "git-fetch-pack", quiet, use_sideband);
        else
-               status = receive_unpack_pack(fd, "git-fetch-pack", quiet);
+               status = receive_unpack_pack(fd, "git-fetch-pack", quiet, use_sideband);
 
        if (status)
                die("git-fetch-pack: fetch failed.");
@@ -509,7 +525,7 @@ int main(int argc, char **argv)
        ret = fetch_pack(fd, nr_heads, heads);
        close(fd[0]);
        close(fd[1]);
-       finish_connect(pid);
+       ret |= finish_connect(pid);
 
        if (!ret && nr_heads) {
                /* If the heads to pull were given, we should have
@@ -524,5 +540,5 @@ int main(int argc, char **argv)
                        }
        }
 
-       return ret;
+       return !!ret;
 }