Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 cache-tree.c           | 25 +++++++++++--------------
 cache-tree.h           |  2 +-
 merge-recursive.c      |  4 +---
 sequencer.c            |  4 +---
 test-dump-cache-tree.c |  7 ++++---
 5 files changed, 18 insertions(+), 24 deletions(-)

diff --git a/cache-tree.c b/cache-tree.c
index 23ddc73..18055f1 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -151,7 +151,7 @@ void cache_tree_invalidate_path(struct index_state *istate, 
const char *path)
                istate->cache_changed |= CACHE_TREE_CHANGED;
 }
 
-static int verify_cache(const struct cache_entry * const *cache,
+static int verify_cache(struct cache_entry **cache,
                        int entries, int flags)
 {
        int i, funny;
@@ -236,7 +236,7 @@ int cache_tree_fully_valid(struct cache_tree *it)
 }
 
 static int update_one(struct cache_tree *it,
-                     const struct cache_entry * const *cache,
+                     struct cache_entry **cache,
                      int entries,
                      const char *base,
                      int baselen,
@@ -398,18 +398,19 @@ static int update_one(struct cache_tree *it,
        return i;
 }
 
-int cache_tree_update(struct cache_tree *it,
-                     const struct cache_entry * const *cache,
-                     int entries,
-                     int flags)
+int cache_tree_update(struct index_state *istate, int flags)
 {
-       int i, skip;
-       i = verify_cache(cache, entries, flags);
+       struct cache_tree *it = istate->cache_tree;
+       struct cache_entry **cache = istate->cache;
+       int entries = istate->cache_nr;
+       int skip, i = verify_cache(cache, entries, flags);
+
        if (i)
                return i;
        i = update_one(it, cache, entries, "", 0, &skip, flags);
        if (i < 0)
                return i;
+       istate->cache_changed |= CACHE_TREE_CHANGED;
        return 0;
 }
 
@@ -597,9 +598,7 @@ int write_cache_as_tree(unsigned char *sha1, int flags, 
const char *prefix)
 
        was_valid = cache_tree_fully_valid(active_cache_tree);
        if (!was_valid) {
-               if (cache_tree_update(active_cache_tree,
-                                     (const struct cache_entry * const 
*)active_cache,
-                                     active_nr, flags) < 0)
+               if (cache_tree_update(&the_index, flags) < 0)
                        return WRITE_TREE_UNMERGED_INDEX;
                if (0 <= newfd) {
                        if (!write_locked_index(&the_index, lock_file, 
COMMIT_LOCK))
@@ -698,7 +697,5 @@ int update_main_cache_tree(int flags)
 {
        if (!the_index.cache_tree)
                the_index.cache_tree = cache_tree();
-       return cache_tree_update(the_index.cache_tree,
-                                (const struct cache_entry * const 
*)the_index.cache,
-                                the_index.cache_nr, flags);
+       return cache_tree_update(&the_index, flags);
 }
diff --git a/cache-tree.h b/cache-tree.h
index dfbcfab..154b357 100644
--- a/cache-tree.h
+++ b/cache-tree.h
@@ -30,7 +30,7 @@ void cache_tree_write(struct strbuf *, struct cache_tree 
*root);
 struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);
 
 int cache_tree_fully_valid(struct cache_tree *);
-int cache_tree_update(struct cache_tree *, const struct cache_entry * const *, 
int, int);
+int cache_tree_update(struct index_state *, int);
 
 int update_main_cache_tree(int);
 
diff --git a/merge-recursive.c b/merge-recursive.c
index 442c1ec..0b5d34d 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -265,9 +265,7 @@ struct tree *write_tree_from_memory(struct merge_options *o)
                active_cache_tree = cache_tree();
 
        if (!cache_tree_fully_valid(active_cache_tree) &&
-           cache_tree_update(active_cache_tree,
-                             (const struct cache_entry * const *)active_cache,
-                             active_nr, 0) < 0)
+           cache_tree_update(&the_index, 0) < 0)
                die(_("error building trees"));
 
        result = lookup_tree(active_cache_tree->sha1);
diff --git a/sequencer.c b/sequencer.c
index 5ebc461..4b709db 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -371,9 +371,7 @@ static int is_index_unchanged(void)
                active_cache_tree = cache_tree();
 
        if (!cache_tree_fully_valid(active_cache_tree))
-               if (cache_tree_update(active_cache_tree,
-                                     (const struct cache_entry * const 
*)active_cache,
-                                     active_nr, 0))
+               if (cache_tree_update(&the_index, 0))
                        return error(_("Unable to update cache tree\n"));
 
        return !hashcmp(active_cache_tree->sha1, 
head_commit->tree->object.sha1);
diff --git a/test-dump-cache-tree.c b/test-dump-cache-tree.c
index 47eab97..330ba4f 100644
--- a/test-dump-cache-tree.c
+++ b/test-dump-cache-tree.c
@@ -56,11 +56,12 @@ static int dump_cache_tree(struct cache_tree *it,
 
 int main(int ac, char **av)
 {
+       struct index_state istate;
        struct cache_tree *another = cache_tree();
        if (read_cache() < 0)
                die("unable to read index file");
-       cache_tree_update(another,
-                         (const struct cache_entry * const *)active_cache,
-                         active_nr, WRITE_TREE_DRY_RUN);
+       istate = the_index;
+       istate.cache_tree = another;
+       cache_tree_update(&istate, WRITE_TREE_DRY_RUN);
        return dump_cache_tree(active_cache_tree, another, "");
 }
-- 
1.9.1.346.ga2b5940

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