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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                         reverse:2;
  47
  48         /* Diff flags */
  49         unsigned int    diff:1,
  50                         full_diff:1,
  51                         show_root_diff:1,
  52                         no_commit_id:1,
  53                         verbose_header:1,
  54                         ignore_merges:1,
  55                         combine_merges:1,
  56                         dense_combined_merges:1,
  57                         always_show_header:1;
  58
  59         /* Format info */
  60         unsigned int    shown_one:1,
  61                         abbrev_commit:1,
  62                         relative_date:1;
  63
  64         const char **ignore_packed; /* pretend objects in these are unpacked */
  65         int num_ignore_packed;
  66
  67         unsigned int    abbrev;
  68         enum cmit_fmt   commit_format;
  69         struct log_info *loginfo;
  70         int             nr, total;
  71         const char      *mime_boundary;
  72         const char      *message_id;
  73         const char      *ref_message_id;
  74         const char      *add_signoff;
  75         const char      *extra_headers;
  76         const char      *log_reencode;
  77
  78         /* Filter by commit log message */
  79         struct grep_opt *grep_filter;
  80
  81         /* special limits */
  82         int skip_count;
  83         int max_count;
  84         unsigned long max_age;
  85         unsigned long min_age;
  86
  87         /* diff info for patches and for paths limiting */
  88         struct diff_options diffopt;
  89         struct diff_options pruning;
  90
  91         topo_sort_set_fn_t topo_setter;
  92         topo_sort_get_fn_t topo_getter;
  93
  94         struct reflog_walk_info *reflog_info;
  95 };
  96
  97 #define REV_TREE_SAME           0
  98 #define REV_TREE_NEW            1
  99 #define REV_TREE_DIFFERENT      2
 100
 101 /* revision.c */
 102 extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
 103 extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
 104
 105 extern void init_revisions(struct rev_info *revs, const char *prefix);
 106 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
 107 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
 108
 109 extern void prepare_revision_walk(struct rev_info *revs);
 110 extern struct commit *get_revision(struct rev_info *revs);
 111
 112 extern void mark_parents_uninteresting(struct commit *commit);
 113 extern void mark_tree_uninteresting(struct tree *tree);
 114
 115 struct name_path {
 116         struct name_path *up;
 117         int elem_len;
 118         const char *elem;
 119 };
 120
 121 extern void add_object(struct object *obj,
 122                        struct object_array *p,
 123                        struct name_path *path,
 124                        const char *name);
 125
 126 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
 127
 128 #endif