Add compat/unsetenv.c .

diff --git a/commit.c b/commit.c
index ebf4db6416497ba6586d359c6d37c8ee942a1395..b8bf35e86081a638137c49e9eabb18c466dec1e5 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -1,6 +1,6 @@
+#include "cache.h"
 #include "tag.h"
 #include "commit.h"
-#include "cache.h"
 
 int save_commit_buffer = 1;
 
@@ -204,6 +204,7 @@ int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size)
        unsigned char parent[20];
        struct commit_list **pptr;
        struct commit_graft *graft;
+       unsigned n_refs = 0;
 
        if (item->object.parsed)
                return 0;
@@ -214,7 +215,7 @@ int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size)
                return error("bad tree pointer in commit %s\n", sha1_to_hex(item->object.sha1));
        item->tree = lookup_tree(parent);
        if (item->tree)
-               add_ref(&item->object, &item->tree->object);
+               n_refs++;
        bufptr += 46; /* "tree " + "hex sha1" + "\n" */
        pptr = &item->parents;
 
@@ -230,7 +231,7 @@ int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size)
                new_parent = lookup_commit(parent);
                if (new_parent) {
                        pptr = &commit_list_insert(new_parent, pptr)->next;
-                       add_ref(&item->object, &new_parent->object);
+                       n_refs++;
                }
        }
        if (graft) {
@@ -241,10 +242,22 @@ int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size)
                        if (!new_parent)
                                continue;
                        pptr = &commit_list_insert(new_parent, pptr)->next;
-                       add_ref(&item->object, &new_parent->object);
+                       n_refs++;
                }
        }
        item->date = parse_commit_date(bufptr);
+
+       if (track_object_refs) {
+               unsigned i = 0;
+               struct commit_list *p;
+               struct object_refs *refs = alloc_object_refs(n_refs);
+               if (item->tree)
+                       refs->ref[i++] = &item->tree->object;
+               for (p = item->parents; p; p = p->next)
+                       refs->ref[i++] = &p->item->object;
+               set_object_refs(&item->object, refs);
+       }
+
        return 0;
 }
 
@@ -339,6 +352,21 @@ struct commit *pop_most_recent_commit(struct commit_list **list,
        return ret;
 }
 
+void clear_commit_marks(struct commit *commit, unsigned int mark)
+{
+       struct commit_list *parents;
+
+       parents = commit->parents;
+       commit->object.flags &= ~mark;
+       while (parents) {
+               struct commit *parent = parents->item;
+               if (parent && parent->object.parsed &&
+                   (parent->object.flags & mark))
+                       clear_commit_marks(parent, mark);
+               parents = parents->next;
+       }
+}
+
 /*
  * Generic support for pretty-printing the header
  */
@@ -547,6 +575,9 @@ void sort_in_topological_order(struct commit_list ** list)
                next = next->next;
                count++;
        }
+       
+       if (!count)
+               return;
        /* allocate an array to help sort the list */
        nodes = xcalloc(count, sizeof(*nodes));
        /* link the list to the array */