Re: [PATCH v2 1/4] worktree: refactor infer_backlink() to use *strbuf

On Sunday, October 6th, 2024 at 23:12, shejialuo [off-list ref] wrote:

That's not correct. It is true that the contents can be NULL and
`backlink` could be filled with the infer_backlink. But do you notice
that if `backlink` was filled with the infer_backlink, it will jump
to the "done" label.

This is not correct, if backlink is filled with `infer_backlink` it
continues on with the processing. I have made this more clear:

    dotgit_contents = xstrdup_or_null(read_gitfile_gently(realdotgit.buf, &err));
    if (dotgit_contents) {
	if (is_absolute_path(dotgit_contents)) {
	    strbuf_addstr(&backlink, dotgit_contents);
        } else {
	    strbuf_addbuf(&backlink, &realdotgit);
	    strbuf_strip_suffix(&backlink, ".git");
	    strbuf_addstr(&backlink, dotgit_contents);
        }
    } else if (err == READ_GITFILE_ERR_NOT_A_FILE) {
	fn(1, realdotgit.buf, _("unable to locate repository; .git is not a file"), cb_data);
	goto done;
    } else if (err == READ_GITFILE_ERR_NOT_A_REPO) {
	if (!infer_backlink(realdotgit.buf, &backlink)) {
	    fn(1, realdotgit.buf, _("unable to locate repository; .git file does not reference a repository"), cb_data);
	    goto done;
        }
    } else if (err) {
        fn(1, realdotgit.buf, _("unable to locate repository; .git file broken"), cb_data);
        goto done;
    }