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[git.git] / unpack-trees.c

diff --git a/unpack-trees.c b/unpack-trees.c
index 86e28650b887b4fcc1b05cc4d3102367df18a9ac..05d0bb1f85467a275bb78173d3a045940262abe7 100644 (file)
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -7,6 +7,7 @@
 #include "unpack-trees.h"
 #include "progress.h"
 #include "refs.h"
+#include "attr.h"
 
 /*
  * Error messages expected by scripts out of plumbing commands such as
@@ -60,7 +61,7 @@ static void unlink_entry(struct cache_entry *ce)
 {
        if (has_symlink_or_noent_leading_path(ce->name, ce_namelen(ce)))
                return;
-       if (unlink(ce->name))
+       if (unlink_or_warn(ce->name))
                return;
        schedule_dir_for_removal(ce->name, ce_namelen(ce));
 }
@@ -86,6 +87,8 @@ static int check_updates(struct unpack_trees_options *o)
                cnt = 0;
        }
 
+       if (o->update)
+               git_attr_set_direction(GIT_ATTR_CHECKOUT, &o->result);
        for (i = 0; i < index->cache_nr; i++) {
                struct cache_entry *ce = index->cache[i];
 
@@ -110,6 +113,8 @@ static int check_updates(struct unpack_trees_options *o)
                }
        }
        stop_progress(&progress);
+       if (o->update)
+               git_attr_set_direction(GIT_ATTR_CHECKIN, NULL);
        return errs != 0;
 }
 
@@ -135,7 +140,7 @@ static int unpack_index_entry(struct cache_entry *ce, struct unpack_trees_option
        return call_unpack_fn(src, o);
 }
 
-int traverse_trees_recursive(int n, unsigned long dirmask, unsigned long df_conflicts, struct name_entry *names, struct traverse_info *info)
+static int traverse_trees_recursive(int n, unsigned long dirmask, unsigned long df_conflicts, struct name_entry *names, struct traverse_info *info)
 {
        int i;
        struct tree_desc t[MAX_UNPACK_TREES];
@@ -321,6 +326,23 @@ static int unpack_callback(int n, unsigned long mask, unsigned long dirmask, str
                        if (src[0])
                                conflicts |= 1;
                }
+
+               /* special case: "diff-index --cached" looking at a tree */
+               if (o->diff_index_cached &&
+                   n == 1 && dirmask == 1 && S_ISDIR(names->mode)) {
+                       int matches;
+                       matches = cache_tree_matches_traversal(o->src_index->cache_tree,
+                                                              names, info);
+                       /*
+                        * Everything under the name matches.  Adjust o->pos to
+                        * skip the entire hierarchy.
+                        */
+                       if (matches) {
+                               o->pos += matches;
+                               return mask;
+                       }
+               }
+
                if (traverse_trees_recursive(n, dirmask, conflicts,
                                             names, info) < 0)
                        return -1;