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Fix reference renaming to prevent duplicated names

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nulltoken 2011-03-03 19:41:27 +02:00 committed by Vicent Marti
parent de05ff6c78
commit e2d426227f
1 changed files with 10 additions and 0 deletions
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10
src/refs.c
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@ -1124,9 +1124,19 @@ int git_reference_rename(git_reference *ref, const char *new_name)
int error;
char *old_name;
char old_path[GIT_PATH_MAX], new_path[GIT_PATH_MAX];
git_reference *looked_up_ref;
assert(ref);
/* Ensure we're not going to overwrite an existing reference */
error = git_repository_lookup_ref(&looked_up_ref, ref->owner, new_name);
if (error == GIT_SUCCESS)
return GIT_EINVALIDREFNAME;
if (error != GIT_ENOTFOUND)
return error;
old_name = ref->name;
ref->name = git__strdup(new_name);