Imported Upstream version 2.0.1

[platform/upstream/git.git] / cache-tree.c

diff --git a/cache-tree.c b/cache-tree.c
index 37e4d00..7fa524a 100644 (file)
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -75,11 +75,7 @@ static struct cache_tree_sub *find_subtree(struct cache_tree *it,
                return NULL;
 
        pos = -pos-1;
-       if (it->subtree_alloc <= it->subtree_nr) {
-               it->subtree_alloc = alloc_nr(it->subtree_alloc);
-               it->down = xrealloc(it->down, it->subtree_alloc *
-                                   sizeof(*it->down));
-       }
+       ALLOC_GROW(it->down, it->subtree_nr + 1, it->subtree_alloc);
        it->subtree_nr++;
 
        down = xmalloc(sizeof(*down) + pathlen + 1);
@@ -121,11 +117,11 @@ void cache_tree_invalidate_path(struct cache_tree *it, const char *path)
 
        if (!it)
                return;
-       slash = strchr(path, '/');
+       slash = strchrnul(path, '/');
+       namelen = slash - path;
        it->entry_count = -1;
-       if (!slash) {
+       if (!*slash) {
                int pos;
-               namelen = strlen(path);
                pos = subtree_pos(it, path, namelen);
                if (0 <= pos) {
                        cache_tree_free(&it->down[pos]->cache_tree);
@@ -143,13 +139,12 @@ void cache_tree_invalidate_path(struct cache_tree *it, const char *path)
                }
                return;
        }
-       namelen = slash - path;
        down = find_subtree(it, path, namelen, 0);
        if (down)
                cache_tree_invalidate_path(down->cache_tree, slash + 1);
 }
 
-static int verify_cache(struct cache_entry **cache,
+static int verify_cache(const struct cache_entry * const *cache,
                        int entries, int flags)
 {
        int i, funny;
@@ -158,7 +153,7 @@ static int verify_cache(struct cache_entry **cache,
        /* Verify that the tree is merged */
        funny = 0;
        for (i = 0; i < entries; i++) {
-               struct cache_entry *ce = cache[i];
+               const struct cache_entry *ce = cache[i];
                if (ce_stage(ce)) {
                        if (silent)
                                return -1;
@@ -234,7 +229,7 @@ int cache_tree_fully_valid(struct cache_tree *it)
 }
 
 static int update_one(struct cache_tree *it,
-                     struct cache_entry **cache,
+                     const struct cache_entry * const *cache,
                      int entries,
                      const char *base,
                      int baselen,
@@ -265,7 +260,7 @@ static int update_one(struct cache_tree *it,
         */
        i = 0;
        while (i < entries) {
-               struct cache_entry *ce = cache[i];
+               const struct cache_entry *ce = cache[i];
                struct cache_tree_sub *sub;
                const char *path, *slash;
                int pathlen, sublen, subcnt, subskip;
@@ -312,7 +307,7 @@ static int update_one(struct cache_tree *it,
 
        i = 0;
        while (i < entries) {
-               struct cache_entry *ce = cache[i];
+               const struct cache_entry *ce = cache[i];
                struct cache_tree_sub *sub;
                const char *path, *slash;
                int pathlen, entlen;
@@ -397,7 +392,7 @@ static int update_one(struct cache_tree *it,
 }
 
 int cache_tree_update(struct cache_tree *it,
-                     struct cache_entry **cache,
+                     const struct cache_entry * const *cache,
                      int entries,
                      int flags)
 {
@@ -554,22 +549,19 @@ static struct cache_tree *cache_tree_find(struct cache_tree *it, const char *pat
                const char *slash;
                struct cache_tree_sub *sub;
 
-               slash = strchr(path, '/');
-               if (!slash)
-                       slash = path + strlen(path);
-               /* between path and slash is the name of the
-                * subtree to look for.
+               slash = strchrnul(path, '/');
+               /*
+                * Between path and slash is the name of the subtree
+                * to look for.
                 */
                sub = find_subtree(it, path, slash - path, 0);
                if (!sub)
                        return NULL;
                it = sub->cache_tree;
-               if (slash)
-                       while (*slash && *slash == '/')
-                               slash++;
-               if (!slash || !*slash)
-                       return it; /* prefix ended with slashes */
+
                path = slash;
+               while (*path == '/')
+                       path++;
        }
        return it;
 }
@@ -599,8 +591,8 @@ 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,
-                                     active_cache, active_nr,
-                                     flags) < 0)
+                                     (const struct cache_entry * const *)active_cache,
+                                     active_nr, flags) < 0)
                        return WRITE_TREE_UNMERGED_INDEX;
                if (0 <= newfd) {
                        if (!write_cache(newfd, active_cache, active_nr) &&
@@ -701,5 +693,6 @@ 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,
-                                the_index.cache, the_index.cache_nr, flags);
+                                (const struct cache_entry * const *)the_index.cache,
+                                the_index.cache_nr, flags);
 }