rerere: error out on autoupdate failure

diff --git a/cache-tree.c b/cache-tree.c
index 7fa524a11323621d24c352b0a1108ae953a60cf5..c53f7de2b13acfc1b97c60b04552e57791377442 100644 (file)
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -98,7 +98,7 @@ struct cache_tree_sub *cache_tree_sub(struct cache_tree *it, const char *path)
        return find_subtree(it, path, pathlen, 1);
 }
 
-void cache_tree_invalidate_path(struct cache_tree *it, const char *path)
+static int do_invalidate_path(struct cache_tree *it, const char *path)
 {
        /* a/b/c
         * ==> invalidate self
@@ -116,7 +116,7 @@ void cache_tree_invalidate_path(struct cache_tree *it, const char *path)
 #endif
 
        if (!it)
-               return;
+               return 0;
        slash = strchrnul(path, '/');
        namelen = slash - path;
        it->entry_count = -1;
@@ -137,14 +137,21 @@ void cache_tree_invalidate_path(struct cache_tree *it, const char *path)
                                (it->subtree_nr - pos - 1));
                        it->subtree_nr--;
                }
-               return;
+               return 1;
        }
        down = find_subtree(it, path, namelen, 0);
        if (down)
-               cache_tree_invalidate_path(down->cache_tree, slash + 1);
+               do_invalidate_path(down->cache_tree, slash + 1);
+       return 1;
 }
 
-static int verify_cache(const struct cache_entry * const *cache,
+void cache_tree_invalidate_path(struct index_state *istate, const char *path)
+{
+       if (do_invalidate_path(istate->cache_tree, path))
+               istate->cache_changed |= CACHE_TREE_CHANGED;
+}
+
+static int verify_cache(struct cache_entry **cache,
                        int entries, int flags)
 {
        int i, funny;
@@ -229,7 +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,
@@ -391,18 +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;
 }
 
@@ -590,13 +598,10 @@ 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_cache(newfd, active_cache, active_nr) &&
-                           !commit_lock_file(lock_file))
+                       if (!write_locked_index(&the_index, lock_file, COMMIT_LOCK))
                                newfd = -1;
                }
                /* Not being able to write is fine -- we are only interested
@@ -649,11 +654,12 @@ static void prime_cache_tree_rec(struct cache_tree *it, struct tree *tree)
        it->entry_count = cnt;
 }
 
-void prime_cache_tree(struct cache_tree **it, struct tree *tree)
+void prime_cache_tree(struct index_state *istate, struct tree *tree)
 {
-       cache_tree_free(it);
-       *it = cache_tree();
-       prime_cache_tree_rec(*it, tree);
+       cache_tree_free(&istate->cache_tree);
+       istate->cache_tree = cache_tree();
+       prime_cache_tree_rec(istate->cache_tree, tree);
+       istate->cache_changed |= CACHE_TREE_CHANGED;
 }
 
 /*
@@ -692,7 +698,5 @@ 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);
 }