Re: [PATCH 1/9] init: allow overriding the default branch name for new repositories

On Wed, Jun 10, 2020 at 08:16:38PM -0400, Eric Sunshine wrote:

quoted

+/*
+ * Retrieves the name of the default branch. If `short_name` is non-zero, the
+ * branch name will be prefixed with "refs/heads/".
+ */
+char *git_default_branch_name(int short_name);

Overall, the internal logic regarding duplicating/freeing strings
would probably be easier to grok if there were two separate functions:

    char *git_default_branch_name(void);
    char *git_default_ref_name(void);

but that's subjective.

Having seen one of the callers, might it be worth avoiding handing off
ownership of the string entirely?

I.e., this comes from a string that's already owned for the lifetime of
the process (either the environment, or a string stored by the config
machinery). Could we just pass that back (or if we want to be more
careful about getenv() lifetimes, we can copy it into a static owned by
this function)?

Then all of the callers can stop dealing with the extra free(), and you
can do:

  const char *git_default_branch_name(void)
  {
	return skip_prefix("refs/heads/", git_default_ref_name());
  }

-Peff