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authorRubén Justo <rjusto@gmail.com>2022-10-26 01:01:29 +0200
committerJunio C Hamano <gitster@pobox.com>2022-10-26 10:52:24 -0700
commit77e7267e47aac247244dc4fb3538baff7463261f (patch)
treeea3f2de70696e779b5199927c9e422bce9e62a6e /builtin/branch.c
parentdb29e6bbaed156ae9025ff0474fd788e58230367 (diff)
downloadgit-77e7267e47aac247244dc4fb3538baff7463261f.tar.gz
branch: error copying or renaming a detached HEAD
In c847f53712 (Detached HEAD (experimental), 2007-01-01) an error condition was introduced in rename_branch() to prevent renaming, later also copying, a detached HEAD. The condition used was checking for NULL in oldname, the source branch to rename/copy. That condition cannot be satisfied because if no source branch is specified, HEAD is going to be used in the call. The error issued instead is: fatal: Invalid branch name: 'HEAD' Let's remove the condition in copy_or_rename_branch() (the current function name) and check for HEAD before calling it, dying with the original intended error if we're in a detached HEAD. Signed-off-by: Rubén Justo <rjusto@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/branch.c')
-rw-r--r--builtin/branch.c28
1 files changed, 8 insertions, 20 deletions
diff --git a/builtin/branch.c b/builtin/branch.c
index 407517ba68..c964ac7bb4 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -520,13 +520,6 @@ static void copy_or_rename_branch(const char *oldname, const char *newname, int
const char *interpreted_newname = NULL;
int recovery = 0;
- if (!oldname) {
- if (copy)
- die(_("cannot copy the current branch while not on any."));
- else
- die(_("cannot rename the current branch while not on any."));
- }
-
if (strbuf_check_branch_ref(&oldref, oldname)) {
/*
* Bad name --- this could be an attempt to rename a
@@ -827,24 +820,19 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
strbuf_release(&buf);
return ret;
- } else if (copy) {
- if (!argc)
- die(_("branch name required"));
- else if (argc == 1)
- copy_or_rename_branch(head, argv[0], 1, copy > 1);
- else if (argc == 2)
- copy_or_rename_branch(argv[0], argv[1], 1, copy > 1);
- else
- die(_("too many branches for a copy operation"));
- } else if (rename) {
+ } else if (copy || rename) {
if (!argc)
die(_("branch name required"));
+ else if ((argc == 1) && filter.detached)
+ die(copy? _("cannot copy the current branch while not on any.")
+ : _("cannot rename the current branch while not on any."));
else if (argc == 1)
- copy_or_rename_branch(head, argv[0], 0, rename > 1);
+ copy_or_rename_branch(head, argv[0], copy, copy + rename > 1);
else if (argc == 2)
- copy_or_rename_branch(argv[0], argv[1], 0, rename > 1);
+ copy_or_rename_branch(argv[0], argv[1], copy, copy + rename > 1);
else
- die(_("too many arguments for a rename operation"));
+ die(copy? _("too many branches for a copy operation")
+ : _("too many arguments for a rename operation"));
} else if (new_upstream) {
struct branch *branch;
struct strbuf buf = STRBUF_INIT;