Now, there is a parallel "rebase-i-in-c" effort going on, and of
course, setting various shell various and formulating a command line
that essentially does
. git-rebase--$backend
of course stops working.
> +static int run_specific_rebase(struct rebase_options *opts)
> +{
> + const char *argv[] = { NULL, NULL };
> + ...
> + switch (opts->type) {
> + case REBASE_AM:
> + backend = "git-rebase--am";
> + backend_func = "git_rebase__am";
> + break;
> + case REBASE_INTERACTIVE:
> + backend = "git-rebase--interactive";
> + backend_func = "git_rebase__interactive";
> + break;
> + ...
> + strbuf_addf(&script_snippet,
> + ". git-sh-setup && . git-rebase--common &&"
> + " . %s && %s", backend, backend_func);
> + argv[0] = script_snippet.buf;
> +
> + status = run_command_v_opt(argv, RUN_USING_SHELL);
