format-patch: improve head calculation for cover-letter

diff --git a/unpack-trees.c b/unpack-trees.c
index 6d9636623a2cbb5d5a38eb58d625ef0164d953c0..09e53df3b2a39e7ec8c7d601c5b8b8ae4de39b9a 100644 (file)
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -837,7 +837,8 @@ static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
 {
        struct cache_entry **cache_end;
        int dtype = DT_DIR;
-       int ret = excluded_from_list(prefix, prefix_len, basename, &dtype, el);
+       int ret = is_excluded_from_list(prefix, prefix_len,
+                                       basename, &dtype, el);
 
        prefix[prefix_len++] = '/';
 
@@ -856,7 +857,7 @@ static int clear_ce_flags_dir(struct cache_entry **cache, int nr,
         * with ret (iow, we know in advance the incl/excl
         * decision for the entire directory), clear flag here without
         * calling clear_ce_flags_1(). That function will call
-        * the expensive excluded_from_list() on every entry.
+        * the expensive is_excluded_from_list() on every entry.
         */
        return clear_ce_flags_1(cache, cache_end - cache,
                                prefix, prefix_len,
@@ -939,7 +940,8 @@ static int clear_ce_flags_1(struct cache_entry **cache, int nr,
 
                /* Non-directory */
                dtype = ce_to_dtype(ce);
-               ret = excluded_from_list(ce->name, ce_namelen(ce), name, &dtype, el);
+               ret = is_excluded_from_list(ce->name, ce_namelen(ce),
+                                           name, &dtype, el);
                if (ret < 0)
                        ret = defval;
                if (ret > 0)
@@ -1018,7 +1020,7 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
        if (!core_apply_sparse_checkout || !o->update)
                o->skip_sparse_checkout = 1;
        if (!o->skip_sparse_checkout) {
-               if (add_excludes_from_file_to_list(git_path("info/sparse-checkout"), "", 0, NULL, &el, 0) < 0)
+               if (add_excludes_from_file_to_list(git_path("info/sparse-checkout"), "", 0, &el, 0) < 0)
                        o->skip_sparse_checkout = 1;
                else
                        o->el = &el;
@@ -1152,7 +1154,7 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
                *o->dst_index = o->result;
 
 done:
-       free_excludes(&el);
+       clear_exclude_list(&el);
        if (o->path_exclude_check) {
                path_exclude_check_clear(o->path_exclude_check);
                free(o->path_exclude_check);
@@ -1373,7 +1375,7 @@ static int check_ok_to_remove(const char *name, int len, int dtype,
                return 0;
 
        if (o->dir &&
-           path_excluded(o->path_exclude_check, name, -1, &dtype))
+           is_path_excluded(o->path_exclude_check, name, -1, &dtype))
                /*
                 * ce->name is explicitly excluded, so it is Ok to
                 * overwrite it.
@@ -1834,7 +1836,7 @@ int oneway_merge(struct cache_entry **src, struct unpack_trees_options *o)
 
        if (old && same(old, a)) {
                int update = 0;
-               if (o->reset && !ce_uptodate(old) && !ce_skip_worktree(old)) {
+               if (o->reset && o->update && !ce_uptodate(old) && !ce_skip_worktree(old)) {
                        struct stat st;
                        if (lstat(old->name, &st) ||
                            ie_match_stat(o->src_index, old, &st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE))