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   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 #define SYMMETRIC_LEFT  (1u<<8)
  13
  14 struct rev_info;
  15 struct log_info;
  16
  17 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
  18
  19 struct rev_info {
  20         /* Starting list */
  21         struct commit_list *commits;
  22         struct object_array pending;
  23
  24         /* Basic information */
  25         const char *prefix;
  26         void *prune_data;
  27         prune_fn_t *prune_fn;
  28
  29         /* Traversal flags */
  30         unsigned int    dense:1,
  31                         no_merges:1,
  32                         no_walk:1,
  33                         remove_empty_trees:1,
  34                         simplify_history:1,
  35                         lifo:1,
  36                         topo_order:1,
  37                         tag_objects:1,
  38                         tree_objects:1,
  39                         blob_objects:1,
  40                         edge_hint:1,
  41                         limited:1,
  42                         unpacked:1, /* see also ignore_packed below */
  43                         boundary:1,
  44                         left_right:1,
  45                         parents:1;
  46
  47         /* Diff flags */
  48         unsigned int    diff:1,
  49                         full_diff:1,
  50                         show_root_diff:1,
  51                         no_commit_id:1,
  52                         verbose_header:1,
  53                         ignore_merges:1,
  54                         combine_merges:1,
  55                         dense_combined_merges:1,
  56                         always_show_header:1;
  57
  58         /* Format info */
  59         unsigned int    shown_one:1,
  60                         abbrev_commit:1,
  61                         relative_date:1;
  62
  63         const char **ignore_packed; /* pretend objects in these are unpacked */
  64         int num_ignore_packed;
  65
  66         unsigned int    abbrev;
  67         enum cmit_fmt   commit_format;
  68         struct log_info *loginfo;
  69         int             nr, total;
  70         const char      *mime_boundary;
  71         const char      *message_id;
  72         const char      *ref_message_id;
  73         const char      *add_signoff;
  74         const char      *extra_headers;
  75         const char      *log_reencode;
  76
  77         /* Filter by commit log message */
  78         struct grep_opt *grep_filter;
  79
  80         /* special limits */
  81         int skip_count;
  82         int max_count;
  83         unsigned long max_age;
  84         unsigned long min_age;
  85
  86         /* diff info for patches and for paths limiting */
  87         struct diff_options diffopt;
  88         struct diff_options pruning;
  89
  90         topo_sort_set_fn_t topo_setter;
  91         topo_sort_get_fn_t topo_getter;
  92 };
  93
  94 #define REV_TREE_SAME           0
  95 #define REV_TREE_NEW            1
  96 #define REV_TREE_DIFFERENT      2
  97
  98 /* revision.c */
  99 extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
 100 extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
 101
 102 extern void init_revisions(struct rev_info *revs, const char *prefix);
 103 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
 104 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
 105
 106 extern void prepare_revision_walk(struct rev_info *revs);
 107 extern struct commit *get_revision(struct rev_info *revs);
 108
 109 extern void mark_parents_uninteresting(struct commit *commit);
 110 extern void mark_tree_uninteresting(struct tree *tree);
 111
 112 struct name_path {
 113         struct name_path *up;
 114         int elem_len;
 115         const char *elem;
 116 };
 117
 118 extern void add_object(struct object *obj,
 119                        struct object_array *p,
 120                        struct name_path *path,
 121                        const char *name);
 122
 123 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
 124
 125 #endif