GIT-VERSION-FILE: check ./version first.

[thirdparty/git.git] / builtin-branch.c

diff --git a/builtin-branch.c b/builtin-branch.c
index c760e188ea4169d878986ebd0d6c22702802aa59..2d8d61b453ede72b8d0319cb192f9f06a024d8c0 100644 (file)
--- a/builtin-branch.c
+++ b/builtin-branch.c
@@ -316,6 +316,7 @@ static void create_branch(const char *name, const char *start_name,
        struct commit *commit;
        unsigned char sha1[20];
        char ref[PATH_MAX], msg[PATH_MAX + 20];
+       int forcing = 0;
 
        snprintf(ref, sizeof ref, "refs/heads/%s", name);
        if (check_ref_format(ref))
@@ -324,8 +325,9 @@ static void create_branch(const char *name, const char *start_name,
        if (resolve_ref(ref, sha1, 1, NULL)) {
                if (!force)
                        die("A branch named '%s' already exists.", name);
-               else if (!strcmp(head, name))
+               else if (!is_bare_repository() && !strcmp(head, name))
                        die("Cannot force update the current branch.");
+               forcing = 1;
        }
 
        if (start_sha1)
@@ -342,11 +344,15 @@ static void create_branch(const char *name, const char *start_name,
        if (!lock)
                die("Failed to lock ref for update: %s.", strerror(errno));
 
-       if (reflog) {
+       if (reflog)
                log_all_ref_updates = 1;
+
+       if (forcing)
+               snprintf(msg, sizeof msg, "branch: Reset from %s",
+                        start_name);
+       else
                snprintf(msg, sizeof msg, "branch: Created from %s",
                         start_name);
-       }
 
        if (write_ref_sha1(lock, sha1, msg) < 0)
                die("Failed to write ref: %s.", strerror(errno));
@@ -358,7 +364,7 @@ static void rename_branch(const char *oldname, const char *newname, int force)
        unsigned char sha1[20];
 
        if (!oldname)
-               die("cannot rename the curren branch while not on any.");
+               die("cannot rename the current branch while not on any.");
 
        if (snprintf(oldref, sizeof(oldref), "refs/heads/%s", oldname) > sizeof(oldref))
                die("Old branchname too long");
@@ -381,7 +387,8 @@ static void rename_branch(const char *oldname, const char *newname, int force)
        if (rename_ref(oldref, newref, logmsg))
                die("Branch rename failed");
 
-       if (!strcmp(oldname, head) && create_symref("HEAD", newref))
+       /* no need to pass logmsg here as HEAD didn't really move */
+       if (!strcmp(oldname, head) && create_symref("HEAD", newref, NULL))
                die("Branch renamed to %s, but HEAD is not updated!", newname);
 }
 
@@ -394,7 +401,6 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
        int kinds = REF_LOCAL_BRANCH;
        int i;
 
-       setup_ident();
        git_config(git_branch_config);
 
        for (i = 1; i < argc; i++) {