[PATCH 5/5] unpack-trees: factor working tree update out of check_updates

[Stefan Beller <sbeller@xxxxxxxxxx>]

This makes check_updates shorter and easier to understand.

Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx>
---
 unpack-trees.c | 40 ++++++++++++++++++++++++++--------------
 1 file changed, 26 insertions(+), 14 deletions(-)

diff --git a/unpack-trees.c b/unpack-trees.c
index b954ec1233..b40c069b1b 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -275,67 +275,79 @@ static struct progress *get_progress(struct unpack_trees_options *o)
 	struct index_state *index = &o->result;
 
 	if (!o->update || !o->verbose_update)
 		return NULL;
 
 	for (; cnt < index->cache_nr; cnt++) {
 		const struct cache_entry *ce = index->cache[cnt];
 		if (ce->ce_flags & (CE_UPDATE | CE_WT_REMOVE))
 			total++;
 	}
 
 	return start_progress_delay(_("Checking out files"),
 				    total, 50, 1);
 }
 
-static int check_updates(struct unpack_trees_options *o)
+static int update_working_tree_files(struct unpack_trees_options *o,
+				     struct progress *progress,
+				     unsigned start_cnt)
 {
-	unsigned cnt = 0;
+	unsigned cnt = start_cnt;
 	int i, errs = 0;
 
-	struct progress *progress = NULL;
 	struct index_state *index = &o->result;
 	struct checkout state = CHECKOUT_INIT;
 
 	state.force = 1;
 	state.quiet = 1;
 	state.refresh_cache = 1;
 	state.istate = index;
 
-	progress = get_progress(o);
-
-	if (o->update)
-		git_attr_set_direction(GIT_ATTR_CHECKOUT, index);
-
-	cnt = remove_workingtree_files(o, progress);
-	remove_marked_cache_entries(index);
-	remove_scheduled_dirs();
-
 	for (i = 0; i < index->cache_nr; i++) {
 		struct cache_entry *ce = index->cache[i];
 
 		if (ce->ce_flags & CE_UPDATE) {
 			if (ce->ce_flags & CE_WT_REMOVE)
 				die("BUG: both update and delete flags are set on %s",
 				    ce->name);
 			display_progress(progress, ++cnt);
 			ce->ce_flags &= ~CE_UPDATE;
-			if (o->update && !o->dry_run) {
+			if (o->update && !o->dry_run)
 				errs |= checkout_entry(ce, &state, NULL);
-			}
 		}
 	}
+
+	return errs;
+}
+
+static int check_updates(struct unpack_trees_options *o)
+{
+	struct progress *progress = NULL;
+	struct index_state *index = &o->result;
+	int errs;
+	unsigned total_removed;
+
+	progress = get_progress(o);
+
+	if (o->update)
+		git_attr_set_direction(GIT_ATTR_CHECKOUT, index);
+
+	total_removed = remove_workingtree_files(o, progress);
+	remove_marked_cache_entries(index);
+	remove_scheduled_dirs();
+	errs = update_working_tree_files(o, progress, total_removed);
+
 	stop_progress(&progress);
 	if (o->update)
 		git_attr_set_direction(GIT_ATTR_CHECKIN, NULL);
 	return errs != 0;
 }
 
 static int verify_uptodate_sparse(const struct cache_entry *ce,
 				  struct unpack_trees_options *o);
 static int verify_absent_sparse(const struct cache_entry *ce,
 				enum unpack_trees_error_types,
 				struct unpack_trees_options *o);
 
 static int apply_sparse_checkout(struct index_state *istate,
 				 struct cache_entry *ce,
 				 struct unpack_trees_options *o)
-- 
2.11.0.31.g919a8d0.dirty