On Sun, Dec 9, 2018 at 9:05 PM Thomas Gummerer <t.gumme...@gmail.com> wrote:
> @@ -302,15 +310,29 @@ static int checkout_paths(const struct checkout_opts
> *opts,
> ce->ce_flags &= ~CE_MATCHED;
> if (!opts->ignore_skipworktree && ce_skip_worktree(ce))
> continue;
> - if (opts->source_tree && !(ce->ce_flags & CE_UPDATE))
> - /*
> - * "git checkout tree-ish -- path", but this entry
> - * is in the original index; it will not be checked
> - * out to the working tree and it does not matter
> - * if pathspec matched this entry. We will not do
> - * anything to this entry at all.
> - */
> - continue;
> + if (opts->source_tree && !(ce->ce_flags & CE_UPDATE)) {
> + if (!opts->overlay_mode &&
> + ce_path_match(&the_index, ce, &opts->pathspec,
> ps_matched)) {
> + /*
> + * "git checkout --no-overlay <tree-ish> --
> path",
> + * and the path is not in tree-ish, but is in
> + * the current index, which means that it
> should
> + * be removed.
> + */
> + ce->ce_flags |= CE_MATCHED | CE_REMOVE |
> CE_WT_REMOVE;
> + continue;
> + } else {
In non-overlay mode but when pathspec does not match, we come here too.
> + /*
> + * "git checkout tree-ish -- path", but this
> + * entry is in the original index; it will not
I think the missing key point in this comment block is "..is in the
original index _and it's not in tree-ish_". In non-overlay mode, if
pathspec does not match then it's safe to ignore too. But this logic
starts too get to complex and hurt my brain.
> + * be checked out to the working tree and it
> + * does not matter if pathspec matched this
> + * entry. We will not do anything to this
> entry
> + * at all.
> + */
> + continue;
> + }
> + }
> /*
> * Either this entry came from the tree-ish we are
> * checking the paths out of, or we are checking out
> @@ -1266,6 +1299,7 @@ int cmd_checkout(int argc, const char **argv, const
> char *prefix)
> "checkout", "control recursive updating of
> submodules",
> PARSE_OPT_OPTARG,
> option_parse_recurse_submodules_worktree_updater },
> OPT_BOOL(0, "progress", &opts.show_progress, N_("force
> progress reporting")),
> + OPT_BOOL(0, "overlay", &opts.overlay_mode, N_("use overlay
> mode")),
maybe add " (default)" to the help string.
> OPT_END(),
> };
>
--
Duy
