[PATCHv2 1/5] unpack-trees: move checkout state into check_updates

[Stefan Beller]

The checkout state was introduced via 16da134b1f9
(read-trees: refactor the unpack_trees() part, 2006-07-30). An attempt to
refactor the checkout state was done in b56aa5b268e (unpack-trees: pass
checkout state explicitly to check_updates(), 2016-09-13), but we can
go even further.

The `struct checkout state` is not used in unpack_trees apart from
initializing it, so move it into the function that makes use of it,
which is `check_updates`.

Signed-off-by: Stefan Beller <sbel...@google.com>
Reviewed-by: René Scharfe <l....@web.de>
Signed-off-by: Junio C Hamano <gits...@pobox.com>
---
 unpack-trees.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/unpack-trees.c b/unpack-trees.c
index ea6bdd20e0..8e6768f283 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -218,14 +218,19 @@ static void unlink_entry(const struct cache_entry *ce)
        schedule_dir_for_removal(ce->name, ce_namelen(ce));
 }
 
-static int check_updates(struct unpack_trees_options *o,
-                        const struct checkout *state)
+static int check_updates(struct unpack_trees_options *o)
 {
        unsigned cnt = 0, total = 0;
+       int i, errs = 0;
+
        struct progress *progress = NULL;
        struct index_state *index = &o->result;
-       int i;
-       int errs = 0;
+       struct checkout state = CHECKOUT_INIT;
+
+       state.force = 1;
+       state.quiet = 1;
+       state.refresh_cache = 1;
+       state.istate = index;
 
        if (o->update && o->verbose_update) {
                for (total = cnt = 0; cnt < index->cache_nr; cnt++) {
@@ -240,7 +245,7 @@ static int check_updates(struct unpack_trees_options *o,
        }
 
        if (o->update)
-               git_attr_set_direction(GIT_ATTR_CHECKOUT, &o->result);
+               git_attr_set_direction(GIT_ATTR_CHECKOUT, index);
        for (i = 0; i < index->cache_nr; i++) {
                const struct cache_entry *ce = index->cache[i];
 
@@ -251,7 +256,7 @@ static int check_updates(struct unpack_trees_options *o,
                        continue;
                }
        }
-       remove_marked_cache_entries(&o->result);
+       remove_marked_cache_entries(index);
        remove_scheduled_dirs();
 
        for (i = 0; i < index->cache_nr; i++) {
@@ -264,7 +269,7 @@ static int check_updates(struct unpack_trees_options *o,
                        display_progress(progress, ++cnt);
                        ce->ce_flags &= ~CE_UPDATE;
                        if (o->update && !o->dry_run) {
-                               errs |= checkout_entry(ce, state, NULL);
+                               errs |= checkout_entry(ce, &state, NULL);
                        }
                }
        }
@@ -1094,14 +1099,9 @@ int unpack_trees(unsigned len, struct tree_desc *t, 
struct unpack_trees_options
        int i, ret;
        static struct cache_entry *dfc;
        struct exclude_list el;
-       struct checkout state = CHECKOUT_INIT;
 
        if (len > MAX_UNPACK_TREES)
                die("unpack_trees takes at most %d trees", MAX_UNPACK_TREES);
-       state.force = 1;
-       state.quiet = 1;
-       state.refresh_cache = 1;
-       state.istate = &o->result;
 
        memset(&el, 0, sizeof(el));
        if (!core_apply_sparse_checkout || !o->update)
@@ -1238,7 +1238,7 @@ int unpack_trees(unsigned len, struct tree_desc *t, 
struct unpack_trees_options
        }
 
        o->src_index = NULL;
-       ret = check_updates(o, &state) ? (-2) : 0;
+       ret = check_updates(o) ? (-2) : 0;
        if (o->dst_index) {
                if (!ret) {
                        if (!o->result.cache_tree)
-- 
2.11.0.rc2.30.g7c4be45.dirty