ls-tree: major rewrite to do pathspec

diff --git a/commit.h b/commit.h
index 1339231255f243857519595630cf65432dfc0628..6738a696d7d7861188873cf7f7279bc8c19545d5 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -17,16 +17,20 @@ struct commit {
        char *buffer;
 };
 
+extern int save_commit_buffer;
 extern const char *commit_type;
 
 struct commit *lookup_commit(const unsigned char *sha1);
 struct commit *lookup_commit_reference(const unsigned char *sha1);
+struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
+                                             int quiet);
 
 int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
 
 int parse_commit(struct commit *item);
 
 struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
+struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
 
 void free_commit_list(struct commit_list *list);
 
@@ -39,13 +43,13 @@ enum cmit_fmt {
        CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
        CMIT_FMT_SHORT,
        CMIT_FMT_FULL,
+       CMIT_FMT_FULLER,
+       CMIT_FMT_ONELINE,
 };
 
 extern enum cmit_fmt get_commit_format(const char *arg);
 extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned long len, char *buf, unsigned long space);
 
-void insert_by_date(struct commit_list **list, struct commit *item);
-
 /** Removes the first commit from a list sorted by date, and adds all
  * of its parents.
  **/
@@ -55,4 +59,17 @@ struct commit *pop_most_recent_commit(struct commit_list **list,
 struct commit *pop_commit(struct commit_list **stack);
 
 int count_parents(struct commit * commit);
+
+/*
+ * Performs an in-place topological sort of list supplied.
+ *
+ * Pre-conditions:
+ *   all commits in input list and all parents of those
+ *   commits must have object.util == NULL
+ *        
+ * Post-conditions: 
+ *   invariant of resulting list is:
+ *      a reachable from b => ord(b) < ord(a)
+ */
+void sort_in_topological_order(struct commit_list ** list);
 #endif /* COMMIT_H */