Merge branch 'fixes'

diff --git a/clone-pack.c b/clone-pack.c
index 8f5209cfd5bfa5e2cc97333a33432b747f90d96d..c102ca885bc3d6700bea82fba5d4c97ab6a93db7 100644 (file)
--- a/clone-pack.c
+++ b/clone-pack.c
@@ -4,53 +4,15 @@
 #include <sys/wait.h>
 
 static int quiet;
-static const char clone_pack_usage[] = "git-clone-pack [host:]directory [heads]*";
+static const char clone_pack_usage[] = "git-clone-pack [-q] [--exec=<git-upload-pack>] [<host>:]<directory> [<heads>]*";
 static const char *exec = "git-upload-pack";
 
-struct ref {
-       struct ref *next;
-       unsigned char sha1[20];
-       char name[0];
-};
-
-static struct ref *get_remote_refs(int fd, int nr_match, char **match)
-{
-       struct ref *ref_list = NULL, **next_ref = &ref_list;
-
-       for (;;) {
-               static char line[1000];
-               unsigned char sha1[20];
-               struct ref *ref;
-               char *refname;
-               int len;
-
-               len = packet_read_line(fd, line, sizeof(line));
-               if (!len)
-                       break;
-               if (line[len-1] == '\n')
-                       line[--len] = 0;
-               if (len < 42 || get_sha1_hex(line, sha1))
-                       die("git-fetch-pack: protocol error - expected ref descriptor, got '%s¤'", line);
-               refname = line+41;
-               len = len-40;
-               if (nr_match && !path_match(refname, nr_match, match))
-                       continue;
-               ref = xmalloc(sizeof(struct ref) + len);
-               ref->next = NULL;
-               memcpy(ref->sha1, sha1, 20);
-               memcpy(ref->name, refname, len);
-               *next_ref = ref;
-               next_ref = &ref->next;
-       }
-       return ref_list;
-}
-
 static void clone_handshake(int fd[2], struct ref *ref)
 {
        unsigned char sha1[20];
 
        while (ref) {
-               packet_write(fd[1], "want %s\n", sha1_to_hex(ref->sha1));
+               packet_write(fd[1], "want %s\n", sha1_to_hex(ref->old_sha1));
                ref = ref->next;
        }
        packet_flush(fd[1]);
@@ -68,7 +30,7 @@ static int is_master(struct ref *ref)
 
 static void write_one_ref(struct ref *ref)
 {
-       char *path = git_path(ref->name);
+       char *path = git_path("%s", ref->name);
        int fd;
        char *hex;
 
@@ -77,7 +39,7 @@ static void write_one_ref(struct ref *ref)
        fd = open(path, O_CREAT | O_EXCL | O_WRONLY, 0666);
        if (fd < 0)
                die("unable to create ref %s", ref->name);
-       hex = sha1_to_hex(ref->sha1);
+       hex = sha1_to_hex(ref->old_sha1);
        hex[40] = '\n';
        if (write(fd, hex, 41) != 41)
                die("unable to write ref %s", ref->name);
@@ -89,6 +51,7 @@ static void write_refs(struct ref *ref)
        struct ref *head = NULL, *head_ptr, *master_ref;
        char *head_path;
 
+       /* Upload-pack must report HEAD first */
        if (!strcmp(ref->name, "HEAD")) {
                head = ref;
                ref = ref->next;
@@ -98,17 +61,21 @@ static void write_refs(struct ref *ref)
        while (ref) {
                if (is_master(ref))
                        master_ref = ref;
-               if (head && !memcmp(ref->sha1, head->sha1, 20)) {
-                       if (!head_ptr || ref == master_ref)
-                               head_ptr = ref;
-               }
+               if (head &&
+                   !memcmp(ref->old_sha1, head->old_sha1, 20) &&
+                   !strncmp(ref->name, "refs/heads/",11) &&
+                   (!head_ptr || ref == master_ref))
+                       head_ptr = ref;
+
                write_one_ref(ref);
                ref = ref->next;
        }
-       if (!head)
+       if (!head) {
+               fprintf(stderr, "No HEAD in remote.\n");
                return;
+       }
 
-       head_path = git_path("HEAD");
+       head_path = strdup(git_path("HEAD"));
        if (!head_ptr) {
                /*
                 * If we had a master ref, and it wasn't HEAD, we need to undo the
@@ -120,6 +87,7 @@ static void write_refs(struct ref *ref)
                        unlink(head_path);
                }
                write_one_ref(head);
+               free(head_path);
                return;
        }
 
@@ -127,13 +95,15 @@ static void write_refs(struct ref *ref)
        if (master_ref)
                return;
 
+       fprintf(stderr, "Setting HEAD to %s\n", head_ptr->name);
+
        /*
         * Uhhuh. Other end didn't have master. We start HEAD off with
         * the first branch with the same value.
         */
-       unlink(head_path);
-       if (symlink(head_ptr->name, head_path) < 0)
+       if (create_symref(head_path, head_ptr->name) < 0)
                die("unable to link HEAD to %s", head_ptr->name);
+       free(head_path);
 }
 
 static int clone_pack(int fd[2], int nr_match, char **match)
@@ -142,7 +112,7 @@ static int clone_pack(int fd[2], int nr_match, char **match)
        int status;
        pid_t pid;
 
-       refs = get_remote_refs(fd[0], nr_match, match);
+       get_remote_heads(fd[0], &refs, nr_match, match);
        if (!refs) {
                packet_flush(fd[1]);
                die("no matching remote head");
@@ -152,9 +122,9 @@ static int clone_pack(int fd[2], int nr_match, char **match)
        if (pid < 0)
                die("git-clone-pack: unable to fork off git-unpack-objects");
        if (!pid) {
-               close(fd[1]);
                dup2(fd[0], 0);
                close(fd[0]);
+               close(fd[1]);
                execlp("git-unpack-objects", "git-unpack-objects",
                        quiet ? "-q" : NULL, NULL);
                die("git-unpack-objects exec failed");
@@ -196,6 +166,10 @@ int main(int argc, char **argv)
                                quiet = 1;
                                continue;
                        }
+                       if (!strncmp("--exec=", arg, 7)) {
+                               exec = arg + 7;
+                               continue;
+                       }
                        usage(clone_pack_usage);
                }
                dest = arg;