revision.h

   1 #ifndef REVISION_H
   2 #define REVISION_H
   3
   4 #define SEEN            (1u<<0)
   5 #define UNINTERESTING   (1u<<1)
   6 #define TREECHANGE      (1u<<2)
   7 #define SHOWN           (1u<<3)
   8 #define TMP_MARK        (1u<<4) /* for isolated cases; clean after use */
   9 #define BOUNDARY        (1u<<5)
  10 #define BOUNDARY_SHOW   (1u<<6)
  11 #define ADDED           (1u<<7) /* Parents already parsed and added? */
  12
  13 struct rev_info;
  14 struct log_info;
  15
  16 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
  17
  18 struct rev_info {
  19         /* Starting list */
  20         struct commit_list *commits;
  21         struct object_array pending;
  22
  23         /* Basic information */
  24         const char *prefix;
  25         void *prune_data;
  26         prune_fn_t *prune_fn;
  27
  28         /* Traversal flags */
  29         unsigned int    dense:1,
  30                         no_merges:1,
  31                         no_walk:1,
  32                         remove_empty_trees:1,
  33                         simplify_history:1,
  34                         lifo:1,
  35                         topo_order:1,
  36                         tag_objects:1,
  37                         tree_objects:1,
  38                         blob_objects:1,
  39                         edge_hint:1,
  40                         limited:1,
  41                         unpacked:1,
  42                         boundary:1,
  43                         parents:1;
  44
  45         /* Diff flags */
  46         unsigned int    diff:1,
  47                         full_diff:1,
  48                         show_root_diff:1,
  49                         no_commit_id:1,
  50                         verbose_header:1,
  51                         ignore_merges:1,
  52                         combine_merges:1,
  53                         dense_combined_merges:1,
  54                         always_show_header:1;
  55
  56         /* Format info */
  57         unsigned int    shown_one:1,
  58                         abbrev_commit:1,
  59                         relative_date:1;
  60         unsigned int    abbrev;
  61         enum cmit_fmt   commit_format;
  62         struct log_info *loginfo;
  63         int             nr, total;
  64         const char      *mime_boundary;
  65         const char      *message_id;
  66         const char      *ref_message_id;
  67         const char      *add_signoff;
  68         const char      *extra_headers;
  69
  70         /* special limits */
  71         int max_count;
  72         unsigned long max_age;
  73         unsigned long min_age;
  74
  75         /* diff info for patches and for paths limiting */
  76         struct diff_options diffopt;
  77         struct diff_options pruning;
  78
  79         topo_sort_set_fn_t topo_setter;
  80         topo_sort_get_fn_t topo_getter;
  81 };
  82
  83 #define REV_TREE_SAME           0
  84 #define REV_TREE_NEW            1
  85 #define REV_TREE_DIFFERENT      2
  86
  87 /* revision.c */
  88 extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
  89 extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
  90
  91 extern void init_revisions(struct rev_info *revs, const char *prefix);
  92 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
  93 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
  94
  95 extern void prepare_revision_walk(struct rev_info *revs);
  96 extern struct commit *get_revision(struct rev_info *revs);
  97
  98 extern void mark_parents_uninteresting(struct commit *commit);
  99 extern void mark_tree_uninteresting(struct tree *tree);
 100
 101 struct name_path {
 102         struct name_path *up;
 103         int elem_len;
 104         const char *elem;
 105 };
 106
 107 extern void add_object(struct object *obj,
 108                        struct object_array *p,
 109                        struct name_path *path,
 110                        const char *name);
 111
 112 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
 113
 114 #endif